1 /* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */
2 /* GTK - The GIMP Toolkit
3 * gtktextview.c Copyright (C) 2000 Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
20 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
21 * file for a list of people on the GTK+ Team. See the ChangeLog
22 * files for a list of changes. These files are distributed with
23 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
30 #define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API
31 #include "gtkbindings.h"
33 #include "gtkimagemenuitem.h"
36 #include "gtkmarshalers.h"
38 #include "gtkmenuitem.h"
39 #include "gtkseparatormenuitem.h"
40 #include "gtksettings.h"
41 #include "gtkselectionprivate.h"
43 #include "gtktextbufferrichtext.h"
44 #include "gtktextdisplay.h"
45 #include "gtktextview.h"
46 #include "gtkimmulticontext.h"
47 #include "gtkprivate.h"
48 #include "gtktextutil.h"
49 #include "gtkwidgetprivate.h"
50 #include "gtkwindow.h"
51 #include "gtkscrollable.h"
52 #include "gtktypebuiltins.h"
54 #include "a11y/gtktextviewaccessible.h"
58 * @Short_description: Widget that displays a GtkTextBuffer
60 * @See_also: #GtkTextBuffer, #GtkTextIter
62 * You may wish to begin by reading the <link linkend="TextWidget">text widget
63 * conceptual overview</link> which gives an overview of all the objects and data
64 * types related to the text widget and how they work together.
68 /* How scrolling, validation, exposes, etc. work.
70 * The expose_event handler has the invariant that the onscreen lines
71 * have been validated.
73 * There are two ways that onscreen lines can become invalid. The first
74 * is to change which lines are onscreen. This happens when the value
75 * of a scroll adjustment changes. So the code path begins in
76 * gtk_text_view_value_changed() and goes like this:
77 * - gdk_window_scroll() to reflect the new adjustment value
78 * - validate the lines that were moved onscreen
79 * - gdk_window_process_updates() to handle the exposes immediately
81 * The second way is that you get the "invalidated" signal from the layout,
82 * indicating that lines have become invalid. This code path begins in
83 * invalidated_handler() and goes like this:
84 * - install high-priority idle which does the rest of the steps
85 * - if a scroll is pending from scroll_to_mark(), do the scroll,
86 * jumping to the gtk_text_view_value_changed() code path
87 * - otherwise, validate the onscreen lines
88 * - DO NOT process updates
90 * In both cases, validating the onscreen lines can trigger a scroll
91 * due to maintaining the first_para on the top of the screen.
92 * If validation triggers a scroll, we jump to the top of the code path
93 * for value_changed, and bail out of the current code path.
95 * Also, in size_allocate, if we invalidate some lines from changing
96 * the layout width, we need to go ahead and run the high-priority idle,
97 * because GTK sends exposes right after doing the size allocates without
98 * returning to the main loop. This is also why the high-priority idle
99 * is at a higher priority than resizing.
104 #define DEBUG_VALIDATION_AND_SCROLLING
107 #ifdef DEBUG_VALIDATION_AND_SCROLLING
113 #define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->priv->text_window)
114 #define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->priv->text_window)
116 #define SPACE_FOR_CURSOR 1
118 #define GTK_TEXT_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_TEXT_VIEW, GtkTextViewPrivate))
120 typedef struct _GtkTextWindow GtkTextWindow;
121 typedef struct _GtkTextPendingScroll GtkTextPendingScroll;
123 struct _GtkTextViewPrivate
125 GtkTextLayout *layout;
126 GtkTextBuffer *buffer;
128 guint blink_time; /* time in msec the cursor has blinked since last user event */
131 GdkDevice *grab_device;
132 GdkDevice *dnd_device;
134 gulong selection_drag_handler;
136 GtkTextWindow *text_window;
137 GtkTextWindow *left_window;
138 GtkTextWindow *right_window;
139 GtkTextWindow *top_window;
140 GtkTextWindow *bottom_window;
142 GtkAdjustment *hadjustment;
143 GtkAdjustment *vadjustment;
145 gint xoffset; /* Offsets between widget coordinates and buffer coordinates */
147 gint width; /* Width and height of the buffer */
150 /* This is used to monitor the overall size request
151 * and decide whether we need to queue resizes when
152 * the buffer content changes.
154 * FIXME: This could be done in a simpler way by
155 * consulting the above width/height of the buffer + some
156 * padding values, however all of this request code needs
157 * to be changed to use GtkWidget Iface and deserves
160 GtkRequisition cached_size_request;
162 /* The virtual cursor position is normally the same as the
163 * actual (strong) cursor position, except in two circumstances:
165 * a) When the cursor is moved vertically with the keyboard
166 * b) When the text view is scrolled with the keyboard
168 * In case a), virtual_cursor_x is preserved, but not virtual_cursor_y
169 * In case b), both virtual_cursor_x and virtual_cursor_y are preserved.
171 gint virtual_cursor_x; /* -1 means use actual cursor position */
172 gint virtual_cursor_y; /* -1 means use actual cursor position */
174 GtkTextMark *first_para_mark; /* Mark at the beginning of the first onscreen paragraph */
175 gint first_para_pixels; /* Offset of top of screen in the first onscreen paragraph */
178 guint scroll_timeout;
180 guint first_validate_idle; /* Idle to revalidate onscreen portion, runs before resize */
181 guint incremental_validate_idle; /* Idle to revalidate offscreen portions, runs after redraw */
183 gint pending_place_cursor_button;
185 GtkTextMark *dnd_mark;
187 GtkIMContext *im_context;
188 GtkWidget *popup_menu;
195 GtkTextPendingScroll *pending_scroll;
197 /* Default style settings */
198 gint pixels_above_lines;
199 gint pixels_below_lines;
200 gint pixels_inside_wrap;
201 GtkWrapMode wrap_mode;
202 GtkJustification justify;
209 guint overwrite_mode : 1;
210 guint cursor_visible : 1;
212 /* if we have reset the IM since the last character entered */
213 guint need_im_reset : 1;
215 guint accepts_tab : 1;
217 guint width_changed : 1;
219 /* debug flag - means that we've validated onscreen since the
220 * last "invalidate" signal from the layout
222 guint onscreen_validated : 1;
224 guint mouse_cursor_obscured : 1;
226 guint scroll_after_paste : 1;
228 /* GtkScrollablePolicy needs to be checked when
229 * driving the scrollable adjustment values */
230 guint hscroll_policy : 1;
231 guint vscroll_policy : 1;
234 struct _GtkTextPendingScroll
237 gdouble within_margin;
258 TOGGLE_CURSOR_VISIBLE,
266 PROP_PIXELS_ABOVE_LINES,
267 PROP_PIXELS_BELOW_LINES,
268 PROP_PIXELS_INSIDE_WRAP,
289 static void gtk_text_view_finalize (GObject *object);
290 static void gtk_text_view_set_property (GObject *object,
294 static void gtk_text_view_get_property (GObject *object,
298 static void gtk_text_view_destroy (GtkWidget *widget);
299 static void gtk_text_view_size_request (GtkWidget *widget,
300 GtkRequisition *requisition);
301 static void gtk_text_view_get_preferred_width (GtkWidget *widget,
304 static void gtk_text_view_get_preferred_height (GtkWidget *widget,
307 static void gtk_text_view_size_allocate (GtkWidget *widget,
308 GtkAllocation *allocation);
309 static void gtk_text_view_realize (GtkWidget *widget);
310 static void gtk_text_view_unrealize (GtkWidget *widget);
311 static void gtk_text_view_style_updated (GtkWidget *widget);
312 static void gtk_text_view_direction_changed (GtkWidget *widget,
313 GtkTextDirection previous_direction);
314 static void gtk_text_view_grab_notify (GtkWidget *widget,
315 gboolean was_grabbed);
316 static void gtk_text_view_state_flags_changed (GtkWidget *widget,
317 GtkStateFlags previous_state);
319 static gint gtk_text_view_event (GtkWidget *widget,
321 static gint gtk_text_view_key_press_event (GtkWidget *widget,
323 static gint gtk_text_view_key_release_event (GtkWidget *widget,
325 static gint gtk_text_view_button_press_event (GtkWidget *widget,
326 GdkEventButton *event);
327 static gint gtk_text_view_button_release_event (GtkWidget *widget,
328 GdkEventButton *event);
329 static gint gtk_text_view_focus_in_event (GtkWidget *widget,
330 GdkEventFocus *event);
331 static gint gtk_text_view_focus_out_event (GtkWidget *widget,
332 GdkEventFocus *event);
333 static gint gtk_text_view_motion_event (GtkWidget *widget,
334 GdkEventMotion *event);
335 static gint gtk_text_view_draw (GtkWidget *widget,
337 static void gtk_text_view_draw_focus (GtkWidget *widget,
339 static gboolean gtk_text_view_focus (GtkWidget *widget,
340 GtkDirectionType direction);
341 static void gtk_text_view_select_all (GtkWidget *widget,
343 static gboolean get_middle_click_paste (GtkTextView *text_view);
345 /* Source side drag signals */
346 static void gtk_text_view_drag_begin (GtkWidget *widget,
347 GdkDragContext *context);
348 static void gtk_text_view_drag_end (GtkWidget *widget,
349 GdkDragContext *context);
350 static void gtk_text_view_drag_data_get (GtkWidget *widget,
351 GdkDragContext *context,
352 GtkSelectionData *selection_data,
355 static void gtk_text_view_drag_data_delete (GtkWidget *widget,
356 GdkDragContext *context);
358 /* Target side drag signals */
359 static void gtk_text_view_drag_leave (GtkWidget *widget,
360 GdkDragContext *context,
362 static gboolean gtk_text_view_drag_motion (GtkWidget *widget,
363 GdkDragContext *context,
367 static gboolean gtk_text_view_drag_drop (GtkWidget *widget,
368 GdkDragContext *context,
372 static void gtk_text_view_drag_data_received (GtkWidget *widget,
373 GdkDragContext *context,
376 GtkSelectionData *selection_data,
380 static gboolean gtk_text_view_popup_menu (GtkWidget *widget);
382 static void gtk_text_view_move_cursor (GtkTextView *text_view,
383 GtkMovementStep step,
385 gboolean extend_selection);
386 static void gtk_text_view_move_viewport (GtkTextView *text_view,
389 static void gtk_text_view_set_anchor (GtkTextView *text_view);
390 static gboolean gtk_text_view_scroll_pages (GtkTextView *text_view,
392 gboolean extend_selection);
393 static gboolean gtk_text_view_scroll_hpages(GtkTextView *text_view,
395 gboolean extend_selection);
396 static void gtk_text_view_insert_at_cursor (GtkTextView *text_view,
398 static void gtk_text_view_delete_from_cursor (GtkTextView *text_view,
401 static void gtk_text_view_backspace (GtkTextView *text_view);
402 static void gtk_text_view_cut_clipboard (GtkTextView *text_view);
403 static void gtk_text_view_copy_clipboard (GtkTextView *text_view);
404 static void gtk_text_view_paste_clipboard (GtkTextView *text_view);
405 static void gtk_text_view_toggle_overwrite (GtkTextView *text_view);
406 static void gtk_text_view_toggle_cursor_visible (GtkTextView *text_view);
408 static void gtk_text_view_unselect (GtkTextView *text_view);
410 static void gtk_text_view_validate_onscreen (GtkTextView *text_view);
411 static void gtk_text_view_get_first_para_iter (GtkTextView *text_view,
413 static void gtk_text_view_update_layout_width (GtkTextView *text_view);
414 static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
415 GtkTextAttributes *values);
416 static void gtk_text_view_ensure_layout (GtkTextView *text_view);
417 static void gtk_text_view_destroy_layout (GtkTextView *text_view);
418 static void gtk_text_view_check_keymap_direction (GtkTextView *text_view);
419 static void gtk_text_view_start_selection_drag (GtkTextView *text_view,
420 const GtkTextIter *iter,
421 GdkEventButton *event);
422 static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view);
423 static void gtk_text_view_start_selection_dnd (GtkTextView *text_view,
424 const GtkTextIter *iter,
425 GdkEventMotion *event);
426 static void gtk_text_view_check_cursor_blink (GtkTextView *text_view);
427 static void gtk_text_view_pend_cursor_blink (GtkTextView *text_view);
428 static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view);
429 static void gtk_text_view_reset_blink_time (GtkTextView *text_view);
431 static void gtk_text_view_value_changed (GtkAdjustment *adjustment,
433 static void gtk_text_view_commit_handler (GtkIMContext *context,
435 GtkTextView *text_view);
436 static void gtk_text_view_commit_text (GtkTextView *text_view,
438 static void gtk_text_view_preedit_changed_handler (GtkIMContext *context,
439 GtkTextView *text_view);
440 static gboolean gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
441 GtkTextView *text_view);
442 static gboolean gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
445 GtkTextView *text_view);
447 static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
448 const GtkTextIter *location,
451 static void gtk_text_view_target_list_notify (GtkTextBuffer *buffer,
452 const GParamSpec *pspec,
454 static void gtk_text_view_paste_done_handler (GtkTextBuffer *buffer,
455 GtkClipboard *clipboard,
457 static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
461 static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
465 static void gtk_text_view_do_popup (GtkTextView *text_view,
466 GdkEventButton *event);
468 static void cancel_pending_scroll (GtkTextView *text_view);
469 static void gtk_text_view_queue_scroll (GtkTextView *text_view,
471 gdouble within_margin,
476 static gboolean gtk_text_view_flush_scroll (GtkTextView *text_view);
477 static void gtk_text_view_update_adjustments (GtkTextView *text_view);
478 static void gtk_text_view_invalidate (GtkTextView *text_view);
479 static void gtk_text_view_flush_first_validate (GtkTextView *text_view);
481 static void gtk_text_view_set_hadjustment (GtkTextView *text_view,
482 GtkAdjustment *adjustment);
483 static void gtk_text_view_set_vadjustment (GtkTextView *text_view,
484 GtkAdjustment *adjustment);
485 static void gtk_text_view_set_hadjustment_values (GtkTextView *text_view);
486 static void gtk_text_view_set_vadjustment_values (GtkTextView *text_view);
488 static void gtk_text_view_update_im_spot_location (GtkTextView *text_view);
490 /* Container methods */
491 static void gtk_text_view_add (GtkContainer *container,
493 static void gtk_text_view_remove (GtkContainer *container,
495 static void gtk_text_view_forall (GtkContainer *container,
496 gboolean include_internals,
497 GtkCallback callback,
498 gpointer callback_data);
500 /* FIXME probably need the focus methods. */
502 typedef struct _GtkTextViewChild GtkTextViewChild;
504 struct _GtkTextViewChild
508 GtkTextChildAnchor *anchor;
510 gint from_top_of_line;
511 gint from_left_of_buffer;
513 /* These are ignored if anchor != NULL */
514 GtkTextWindowType type;
519 static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child,
520 GtkTextChildAnchor *anchor,
521 GtkTextLayout *layout);
522 static GtkTextViewChild* text_view_child_new_window (GtkWidget *child,
523 GtkTextWindowType type,
526 static void text_view_child_free (GtkTextViewChild *child);
527 static void text_view_child_set_parent_window (GtkTextView *text_view,
528 GtkTextViewChild *child);
530 struct _GtkTextWindow
532 GtkTextWindowType type;
535 GdkWindow *bin_window;
536 GtkRequisition requisition;
537 GdkRectangle allocation;
540 static GtkTextWindow *text_window_new (GtkTextWindowType type,
543 gint height_request);
544 static void text_window_free (GtkTextWindow *win);
545 static void text_window_realize (GtkTextWindow *win,
547 static void text_window_unrealize (GtkTextWindow *win);
548 static void text_window_size_allocate (GtkTextWindow *win,
550 static void text_window_scroll (GtkTextWindow *win,
553 static void text_window_invalidate_rect (GtkTextWindow *win,
555 static void text_window_invalidate_cursors (GtkTextWindow *win);
557 static gint text_window_get_width (GtkTextWindow *win);
558 static gint text_window_get_height (GtkTextWindow *win);
561 static guint signals[LAST_SIGNAL] = { 0 };
563 G_DEFINE_TYPE_WITH_CODE (GtkTextView, gtk_text_view, GTK_TYPE_CONTAINER,
564 G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, NULL))
567 add_move_binding (GtkBindingSet *binding_set,
570 GtkMovementStep step,
573 g_assert ((modmask & GDK_SHIFT_MASK) == 0);
575 gtk_binding_entry_add_signal (binding_set, keyval, modmask,
579 G_TYPE_BOOLEAN, FALSE);
581 /* Selection-extending version */
582 gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
586 G_TYPE_BOOLEAN, TRUE);
590 gtk_text_view_class_init (GtkTextViewClass *klass)
592 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
593 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
594 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
595 GtkBindingSet *binding_set;
597 /* Default handlers and virtual methods
599 gobject_class->set_property = gtk_text_view_set_property;
600 gobject_class->get_property = gtk_text_view_get_property;
601 gobject_class->finalize = gtk_text_view_finalize;
603 widget_class->destroy = gtk_text_view_destroy;
604 widget_class->realize = gtk_text_view_realize;
605 widget_class->unrealize = gtk_text_view_unrealize;
606 widget_class->style_updated = gtk_text_view_style_updated;
607 widget_class->direction_changed = gtk_text_view_direction_changed;
608 widget_class->grab_notify = gtk_text_view_grab_notify;
609 widget_class->state_flags_changed = gtk_text_view_state_flags_changed;
610 widget_class->get_preferred_width = gtk_text_view_get_preferred_width;
611 widget_class->get_preferred_height = gtk_text_view_get_preferred_height;
612 widget_class->size_allocate = gtk_text_view_size_allocate;
613 widget_class->event = gtk_text_view_event;
614 widget_class->key_press_event = gtk_text_view_key_press_event;
615 widget_class->key_release_event = gtk_text_view_key_release_event;
616 widget_class->button_press_event = gtk_text_view_button_press_event;
617 widget_class->button_release_event = gtk_text_view_button_release_event;
618 widget_class->focus_in_event = gtk_text_view_focus_in_event;
619 widget_class->focus_out_event = gtk_text_view_focus_out_event;
620 widget_class->motion_notify_event = gtk_text_view_motion_event;
621 widget_class->draw = gtk_text_view_draw;
622 widget_class->focus = gtk_text_view_focus;
623 widget_class->drag_begin = gtk_text_view_drag_begin;
624 widget_class->drag_end = gtk_text_view_drag_end;
625 widget_class->drag_data_get = gtk_text_view_drag_data_get;
626 widget_class->drag_data_delete = gtk_text_view_drag_data_delete;
628 widget_class->drag_leave = gtk_text_view_drag_leave;
629 widget_class->drag_motion = gtk_text_view_drag_motion;
630 widget_class->drag_drop = gtk_text_view_drag_drop;
631 widget_class->drag_data_received = gtk_text_view_drag_data_received;
633 widget_class->popup_menu = gtk_text_view_popup_menu;
635 container_class->add = gtk_text_view_add;
636 container_class->remove = gtk_text_view_remove;
637 container_class->forall = gtk_text_view_forall;
639 klass->move_cursor = gtk_text_view_move_cursor;
640 klass->set_anchor = gtk_text_view_set_anchor;
641 klass->insert_at_cursor = gtk_text_view_insert_at_cursor;
642 klass->delete_from_cursor = gtk_text_view_delete_from_cursor;
643 klass->backspace = gtk_text_view_backspace;
644 klass->cut_clipboard = gtk_text_view_cut_clipboard;
645 klass->copy_clipboard = gtk_text_view_copy_clipboard;
646 klass->paste_clipboard = gtk_text_view_paste_clipboard;
647 klass->toggle_overwrite = gtk_text_view_toggle_overwrite;
653 g_object_class_install_property (gobject_class,
654 PROP_PIXELS_ABOVE_LINES,
655 g_param_spec_int ("pixels-above-lines",
656 P_("Pixels Above Lines"),
657 P_("Pixels of blank space above paragraphs"),
661 GTK_PARAM_READWRITE));
663 g_object_class_install_property (gobject_class,
664 PROP_PIXELS_BELOW_LINES,
665 g_param_spec_int ("pixels-below-lines",
666 P_("Pixels Below Lines"),
667 P_("Pixels of blank space below paragraphs"),
671 GTK_PARAM_READWRITE));
673 g_object_class_install_property (gobject_class,
674 PROP_PIXELS_INSIDE_WRAP,
675 g_param_spec_int ("pixels-inside-wrap",
676 P_("Pixels Inside Wrap"),
677 P_("Pixels of blank space between wrapped lines in a paragraph"),
681 GTK_PARAM_READWRITE));
683 g_object_class_install_property (gobject_class,
685 g_param_spec_boolean ("editable",
687 P_("Whether the text can be modified by the user"),
689 GTK_PARAM_READWRITE));
691 g_object_class_install_property (gobject_class,
693 g_param_spec_enum ("wrap-mode",
695 P_("Whether to wrap lines never, at word boundaries, or at character boundaries"),
698 GTK_PARAM_READWRITE));
700 g_object_class_install_property (gobject_class,
702 g_param_spec_enum ("justification",
704 P_("Left, right, or center justification"),
705 GTK_TYPE_JUSTIFICATION,
707 GTK_PARAM_READWRITE));
709 g_object_class_install_property (gobject_class,
711 g_param_spec_int ("left-margin",
713 P_("Width of the left margin in pixels"),
717 GTK_PARAM_READWRITE));
719 g_object_class_install_property (gobject_class,
721 g_param_spec_int ("right-margin",
723 P_("Width of the right margin in pixels"),
727 GTK_PARAM_READWRITE));
729 g_object_class_install_property (gobject_class,
731 g_param_spec_int ("indent",
733 P_("Amount to indent the paragraph, in pixels"),
737 GTK_PARAM_READWRITE));
739 g_object_class_install_property (gobject_class,
741 g_param_spec_boxed ("tabs",
743 P_("Custom tabs for this text"),
744 PANGO_TYPE_TAB_ARRAY,
745 GTK_PARAM_READWRITE));
747 g_object_class_install_property (gobject_class,
749 g_param_spec_boolean ("cursor-visible",
750 P_("Cursor Visible"),
751 P_("If the insertion cursor is shown"),
753 GTK_PARAM_READWRITE));
755 g_object_class_install_property (gobject_class,
757 g_param_spec_object ("buffer",
759 P_("The buffer which is displayed"),
760 GTK_TYPE_TEXT_BUFFER,
761 GTK_PARAM_READWRITE));
763 g_object_class_install_property (gobject_class,
765 g_param_spec_boolean ("overwrite",
766 P_("Overwrite mode"),
767 P_("Whether entered text overwrites existing contents"),
769 GTK_PARAM_READWRITE));
771 g_object_class_install_property (gobject_class,
773 g_param_spec_boolean ("accepts-tab",
775 P_("Whether Tab will result in a tab character being entered"),
777 GTK_PARAM_READWRITE));
780 * GtkTextView:im-module:
782 * Which IM (input method) module should be used for this text_view.
785 * Setting this to a non-%NULL value overrides the
786 * system-wide IM module setting. See the GtkSettings
787 * #GtkSettings:gtk-im-module property.
791 g_object_class_install_property (gobject_class,
793 g_param_spec_string ("im-module",
795 P_("Which IM module should be used"),
797 GTK_PARAM_READWRITE));
800 * GtkTextView:input-purpose:
802 * The purpose of this text field.
804 * This property can be used by on-screen keyboards and other input
805 * methods to adjust their behaviour.
809 g_object_class_install_property (gobject_class,
811 g_param_spec_enum ("input-purpose",
813 P_("Purpose of the text field"),
814 GTK_TYPE_INPUT_PURPOSE,
815 GTK_INPUT_PURPOSE_FREE_FORM,
816 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
819 * GtkTextView:input-hints:
821 * Additional hints (beyond #GtkTextView:input-purpose) that
822 * allow input methods to fine-tune their behaviour.
826 g_object_class_install_property (gobject_class,
828 g_param_spec_flags ("input-hints",
830 P_("Hints for the text field behaviour"),
831 GTK_TYPE_INPUT_HINTS,
833 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
835 /* GtkScrollable interface */
836 g_object_class_override_property (gobject_class, PROP_HADJUSTMENT, "hadjustment");
837 g_object_class_override_property (gobject_class, PROP_VADJUSTMENT, "vadjustment");
838 g_object_class_override_property (gobject_class, PROP_HSCROLL_POLICY, "hscroll-policy");
839 g_object_class_override_property (gobject_class, PROP_VSCROLL_POLICY, "vscroll-policy");
844 gtk_widget_class_install_style_property (widget_class,
845 g_param_spec_boxed ("error-underline-color",
846 P_("Error underline color"),
847 P_("Color with which to draw error-indication underlines"),
849 GTK_PARAM_READABLE));
856 * GtkTextView::move-cursor:
857 * @text_view: the object which received the signal
858 * @step: the granularity of the move, as a #GtkMovementStep
859 * @count: the number of @step units to move
860 * @extend_selection: %TRUE if the move should extend the selection
862 * The ::move-cursor signal is a
863 * <link linkend="keybinding-signals">keybinding signal</link>
864 * which gets emitted when the user initiates a cursor movement.
865 * If the cursor is not visible in @text_view, this signal causes
866 * the viewport to be moved instead.
868 * Applications should not connect to it, but may emit it with
869 * g_signal_emit_by_name() if they need to control the cursor
872 * The default bindings for this signal come in two variants,
873 * the variant with the Shift modifier extends the selection,
874 * the variant without the Shift modifer does not.
875 * There are too many key combinations to list them all here.
877 * <listitem>Arrow keys move by individual characters/lines</listitem>
878 * <listitem>Ctrl-arrow key combinations move by words/paragraphs</listitem>
879 * <listitem>Home/End keys move to the ends of the buffer</listitem>
880 * <listitem>PageUp/PageDown keys move vertically by pages</listitem>
881 * <listitem>Ctrl-PageUp/PageDown keys move horizontally by pages</listitem>
884 signals[MOVE_CURSOR] =
885 g_signal_new (I_("move-cursor"),
886 G_OBJECT_CLASS_TYPE (gobject_class),
887 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
888 G_STRUCT_OFFSET (GtkTextViewClass, move_cursor),
890 _gtk_marshal_VOID__ENUM_INT_BOOLEAN,
892 GTK_TYPE_MOVEMENT_STEP,
897 * GtkTextView::move-viewport:
898 * @text_view: the object which received the signal
899 * @step: the granularity of the move, as a #GtkMovementStep
900 * @count: the number of @step units to move
902 * The ::move-viewport signal is a
903 * <link linkend="keybinding-signals">keybinding signal</link>
904 * which can be bound to key combinations to allow the user
905 * to move the viewport, i.e. change what part of the text view
906 * is visible in a containing scrolled window.
908 * There are no default bindings for this signal.
910 signals[MOVE_VIEWPORT] =
911 g_signal_new_class_handler (I_("move-viewport"),
912 G_OBJECT_CLASS_TYPE (gobject_class),
913 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
914 G_CALLBACK (gtk_text_view_move_viewport),
916 _gtk_marshal_VOID__ENUM_INT,
918 GTK_TYPE_SCROLL_STEP,
922 * GtkTextView::set-anchor:
923 * @text_view: the object which received the signal
925 * The ::set-anchor signal is a
926 * <link linkend="keybinding-signals">keybinding signal</link>
927 * which gets emitted when the user initiates setting the "anchor"
928 * mark. The "anchor" mark gets placed at the same position as the
931 * This signal has no default bindings.
933 signals[SET_ANCHOR] =
934 g_signal_new (I_("set-anchor"),
935 G_OBJECT_CLASS_TYPE (gobject_class),
936 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
937 G_STRUCT_OFFSET (GtkTextViewClass, set_anchor),
939 _gtk_marshal_VOID__VOID,
943 * GtkTextView::insert-at-cursor:
944 * @text_view: the object which received the signal
945 * @string: the string to insert
947 * The ::insert-at-cursor signal is a
948 * <link linkend="keybinding-signals">keybinding signal</link>
949 * which gets emitted when the user initiates the insertion of a
950 * fixed string at the cursor.
952 * This signal has no default bindings.
954 signals[INSERT_AT_CURSOR] =
955 g_signal_new (I_("insert-at-cursor"),
956 G_OBJECT_CLASS_TYPE (gobject_class),
957 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
958 G_STRUCT_OFFSET (GtkTextViewClass, insert_at_cursor),
960 _gtk_marshal_VOID__STRING,
965 * GtkTextView::delete-from-cursor:
966 * @text_view: the object which received the signal
967 * @type: the granularity of the deletion, as a #GtkDeleteType
968 * @count: the number of @type units to delete
970 * The ::delete-from-cursor signal is a
971 * <link linkend="keybinding-signals">keybinding signal</link>
972 * which gets emitted when the user initiates a text deletion.
974 * If the @type is %GTK_DELETE_CHARS, GTK+ deletes the selection
975 * if there is one, otherwise it deletes the requested number
978 * The default bindings for this signal are
979 * Delete for deleting a character, Ctrl-Delete for
980 * deleting a word and Ctrl-Backspace for deleting a word
983 signals[DELETE_FROM_CURSOR] =
984 g_signal_new (I_("delete-from-cursor"),
985 G_OBJECT_CLASS_TYPE (gobject_class),
986 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
987 G_STRUCT_OFFSET (GtkTextViewClass, delete_from_cursor),
989 _gtk_marshal_VOID__ENUM_INT,
991 GTK_TYPE_DELETE_TYPE,
995 * GtkTextView::backspace:
996 * @text_view: the object which received the signal
998 * The ::backspace signal is a
999 * <link linkend="keybinding-signals">keybinding signal</link>
1000 * which gets emitted when the user asks for it.
1002 * The default bindings for this signal are
1003 * Backspace and Shift-Backspace.
1005 signals[BACKSPACE] =
1006 g_signal_new (I_("backspace"),
1007 G_OBJECT_CLASS_TYPE (gobject_class),
1008 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1009 G_STRUCT_OFFSET (GtkTextViewClass, backspace),
1011 _gtk_marshal_VOID__VOID,
1015 * GtkTextView::cut-clipboard:
1016 * @text_view: the object which received the signal
1018 * The ::cut-clipboard signal is a
1019 * <link linkend="keybinding-signals">keybinding signal</link>
1020 * which gets emitted to cut the selection to the clipboard.
1022 * The default bindings for this signal are
1023 * Ctrl-x and Shift-Delete.
1025 signals[CUT_CLIPBOARD] =
1026 g_signal_new (I_("cut-clipboard"),
1027 G_OBJECT_CLASS_TYPE (gobject_class),
1028 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1029 G_STRUCT_OFFSET (GtkTextViewClass, cut_clipboard),
1031 _gtk_marshal_VOID__VOID,
1035 * GtkTextView::copy-clipboard:
1036 * @text_view: the object which received the signal
1038 * The ::copy-clipboard signal is a
1039 * <link linkend="keybinding-signals">keybinding signal</link>
1040 * which gets emitted to copy the selection to the clipboard.
1042 * The default bindings for this signal are
1043 * Ctrl-c and Ctrl-Insert.
1045 signals[COPY_CLIPBOARD] =
1046 g_signal_new (I_("copy-clipboard"),
1047 G_OBJECT_CLASS_TYPE (gobject_class),
1048 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1049 G_STRUCT_OFFSET (GtkTextViewClass, copy_clipboard),
1051 _gtk_marshal_VOID__VOID,
1055 * GtkTextView::paste-clipboard:
1056 * @text_view: the object which received the signal
1058 * The ::paste-clipboard signal is a
1059 * <link linkend="keybinding-signals">keybinding signal</link>
1060 * which gets emitted to paste the contents of the clipboard
1061 * into the text view.
1063 * The default bindings for this signal are
1064 * Ctrl-v and Shift-Insert.
1066 signals[PASTE_CLIPBOARD] =
1067 g_signal_new (I_("paste-clipboard"),
1068 G_OBJECT_CLASS_TYPE (gobject_class),
1069 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1070 G_STRUCT_OFFSET (GtkTextViewClass, paste_clipboard),
1072 _gtk_marshal_VOID__VOID,
1076 * GtkTextView::toggle-overwrite:
1077 * @text_view: the object which received the signal
1079 * The ::toggle-overwrite signal is a
1080 * <link linkend="keybinding-signals">keybinding signal</link>
1081 * which gets emitted to toggle the overwrite mode of the text view.
1083 * The default bindings for this signal is Insert.
1085 signals[TOGGLE_OVERWRITE] =
1086 g_signal_new (I_("toggle-overwrite"),
1087 G_OBJECT_CLASS_TYPE (gobject_class),
1088 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1089 G_STRUCT_OFFSET (GtkTextViewClass, toggle_overwrite),
1091 _gtk_marshal_VOID__VOID,
1095 * GtkTextView::populate-popup:
1096 * @text_view: The text view on which the signal is emitted
1097 * @menu: the menu that is being populated
1099 * The ::populate-popup signal gets emitted before showing the
1100 * context menu of the text view.
1102 * If you need to add items to the context menu, connect
1103 * to this signal and append your menuitems to the @menu.
1105 signals[POPULATE_POPUP] =
1106 g_signal_new (I_("populate-popup"),
1107 G_OBJECT_CLASS_TYPE (gobject_class),
1109 G_STRUCT_OFFSET (GtkTextViewClass, populate_popup),
1111 _gtk_marshal_VOID__OBJECT,
1116 * GtkTextView::select-all:
1117 * @text_view: the object which received the signal
1118 * @select: %TRUE to select, %FALSE to unselect
1120 * The ::select-all signal is a
1121 * <link linkend="keybinding-signals">keybinding signal</link>
1122 * which gets emitted to select or unselect the complete
1123 * contents of the text view.
1125 * The default bindings for this signal are Ctrl-a and Ctrl-/
1126 * for selecting and Shift-Ctrl-a and Ctrl-\ for unselecting.
1128 signals[SELECT_ALL] =
1129 g_signal_new_class_handler (I_("select-all"),
1130 G_OBJECT_CLASS_TYPE (gobject_class),
1131 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1132 G_CALLBACK (gtk_text_view_select_all),
1134 _gtk_marshal_VOID__BOOLEAN,
1135 G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
1138 * GtkTextView::toggle-cursor-visible:
1139 * @text_view: the object which received the signal
1141 * The ::toggle-cursor-visible signal is a
1142 * <link linkend="keybinding-signals">keybinding signal</link>
1143 * which gets emitted to toggle the visibility of the cursor.
1145 * The default binding for this signal is F7.
1147 signals[TOGGLE_CURSOR_VISIBLE] =
1148 g_signal_new_class_handler (I_("toggle-cursor-visible"),
1149 G_OBJECT_CLASS_TYPE (gobject_class),
1150 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1151 G_CALLBACK (gtk_text_view_toggle_cursor_visible),
1153 _gtk_marshal_VOID__VOID,
1157 * GtkTextView::preedit-changed:
1158 * @text_view: the object which received the signal
1159 * @preedit: the current preedit string
1161 * If an input method is used, the typed text will not immediately
1162 * be committed to the buffer. So if you are interested in the text,
1163 * connect to this signal.
1165 * This signal is only emitted if the text at the given position
1166 * is actually editable.
1170 signals[PREEDIT_CHANGED] =
1171 g_signal_new_class_handler (I_("preedit-changed"),
1172 G_OBJECT_CLASS_TYPE (gobject_class),
1173 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1176 _gtk_marshal_VOID__STRING,
1184 binding_set = gtk_binding_set_by_class (klass);
1186 /* Moving the insertion point */
1187 add_move_binding (binding_set, GDK_KEY_Right, 0,
1188 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
1190 add_move_binding (binding_set, GDK_KEY_KP_Right, 0,
1191 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
1193 add_move_binding (binding_set, GDK_KEY_Left, 0,
1194 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
1196 add_move_binding (binding_set, GDK_KEY_KP_Left, 0,
1197 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
1199 add_move_binding (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK,
1200 GTK_MOVEMENT_WORDS, 1);
1202 add_move_binding (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK,
1203 GTK_MOVEMENT_WORDS, 1);
1205 add_move_binding (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK,
1206 GTK_MOVEMENT_WORDS, -1);
1208 add_move_binding (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK,
1209 GTK_MOVEMENT_WORDS, -1);
1211 add_move_binding (binding_set, GDK_KEY_Up, 0,
1212 GTK_MOVEMENT_DISPLAY_LINES, -1);
1214 add_move_binding (binding_set, GDK_KEY_KP_Up, 0,
1215 GTK_MOVEMENT_DISPLAY_LINES, -1);
1217 add_move_binding (binding_set, GDK_KEY_Down, 0,
1218 GTK_MOVEMENT_DISPLAY_LINES, 1);
1220 add_move_binding (binding_set, GDK_KEY_KP_Down, 0,
1221 GTK_MOVEMENT_DISPLAY_LINES, 1);
1223 add_move_binding (binding_set, GDK_KEY_Up, GDK_CONTROL_MASK,
1224 GTK_MOVEMENT_PARAGRAPHS, -1);
1226 add_move_binding (binding_set, GDK_KEY_KP_Up, GDK_CONTROL_MASK,
1227 GTK_MOVEMENT_PARAGRAPHS, -1);
1229 add_move_binding (binding_set, GDK_KEY_Down, GDK_CONTROL_MASK,
1230 GTK_MOVEMENT_PARAGRAPHS, 1);
1232 add_move_binding (binding_set, GDK_KEY_KP_Down, GDK_CONTROL_MASK,
1233 GTK_MOVEMENT_PARAGRAPHS, 1);
1235 add_move_binding (binding_set, GDK_KEY_Home, 0,
1236 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
1238 add_move_binding (binding_set, GDK_KEY_KP_Home, 0,
1239 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
1241 add_move_binding (binding_set, GDK_KEY_End, 0,
1242 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
1244 add_move_binding (binding_set, GDK_KEY_KP_End, 0,
1245 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
1247 add_move_binding (binding_set, GDK_KEY_Home, GDK_CONTROL_MASK,
1248 GTK_MOVEMENT_BUFFER_ENDS, -1);
1250 add_move_binding (binding_set, GDK_KEY_KP_Home, GDK_CONTROL_MASK,
1251 GTK_MOVEMENT_BUFFER_ENDS, -1);
1253 add_move_binding (binding_set, GDK_KEY_End, GDK_CONTROL_MASK,
1254 GTK_MOVEMENT_BUFFER_ENDS, 1);
1256 add_move_binding (binding_set, GDK_KEY_KP_End, GDK_CONTROL_MASK,
1257 GTK_MOVEMENT_BUFFER_ENDS, 1);
1259 add_move_binding (binding_set, GDK_KEY_Page_Up, 0,
1260 GTK_MOVEMENT_PAGES, -1);
1262 add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0,
1263 GTK_MOVEMENT_PAGES, -1);
1265 add_move_binding (binding_set, GDK_KEY_Page_Down, 0,
1266 GTK_MOVEMENT_PAGES, 1);
1268 add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0,
1269 GTK_MOVEMENT_PAGES, 1);
1271 add_move_binding (binding_set, GDK_KEY_Page_Up, GDK_CONTROL_MASK,
1272 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
1274 add_move_binding (binding_set, GDK_KEY_KP_Page_Up, GDK_CONTROL_MASK,
1275 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
1277 add_move_binding (binding_set, GDK_KEY_Page_Down, GDK_CONTROL_MASK,
1278 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
1280 add_move_binding (binding_set, GDK_KEY_KP_Page_Down, GDK_CONTROL_MASK,
1281 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
1284 gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK,
1286 G_TYPE_BOOLEAN, TRUE);
1288 gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK,
1290 G_TYPE_BOOLEAN, TRUE);
1293 gtk_binding_entry_add_signal (binding_set, GDK_KEY_backslash, GDK_CONTROL_MASK,
1295 G_TYPE_BOOLEAN, FALSE);
1297 gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1299 G_TYPE_BOOLEAN, FALSE);
1302 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, 0,
1303 "delete-from-cursor", 2,
1304 G_TYPE_ENUM, GTK_DELETE_CHARS,
1307 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, 0,
1308 "delete-from-cursor", 2,
1309 G_TYPE_ENUM, GTK_DELETE_CHARS,
1312 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0,
1315 /* Make this do the same as Backspace, to help with mis-typing */
1316 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK,
1319 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_CONTROL_MASK,
1320 "delete-from-cursor", 2,
1321 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1324 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_CONTROL_MASK,
1325 "delete-from-cursor", 2,
1326 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1329 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK,
1330 "delete-from-cursor", 2,
1331 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1334 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1335 "delete-from-cursor", 2,
1336 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1339 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1340 "delete-from-cursor", 2,
1341 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1344 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1345 "delete-from-cursor", 2,
1346 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1349 /* Cut/copy/paste */
1351 gtk_binding_entry_add_signal (binding_set, GDK_KEY_x, GDK_CONTROL_MASK,
1352 "cut-clipboard", 0);
1353 gtk_binding_entry_add_signal (binding_set, GDK_KEY_c, GDK_CONTROL_MASK,
1354 "copy-clipboard", 0);
1355 gtk_binding_entry_add_signal (binding_set, GDK_KEY_v, GDK_CONTROL_MASK,
1356 "paste-clipboard", 0);
1358 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK,
1359 "cut-clipboard", 0);
1360 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_CONTROL_MASK,
1361 "copy-clipboard", 0);
1362 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_SHIFT_MASK,
1363 "paste-clipboard", 0);
1366 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, 0,
1367 "toggle-overwrite", 0);
1368 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Insert, 0,
1369 "toggle-overwrite", 0);
1372 gtk_binding_entry_add_signal (binding_set, GDK_KEY_F7, 0,
1373 "toggle-cursor-visible", 0);
1375 /* Control-tab focus motion */
1376 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_CONTROL_MASK,
1378 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1379 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_CONTROL_MASK,
1381 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1383 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1385 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1386 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1388 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1390 g_type_class_add_private (gobject_class, sizeof (GtkTextViewPrivate));
1392 gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_TEXT_VIEW_ACCESSIBLE);
1396 gtk_text_view_init (GtkTextView *text_view)
1398 GtkWidget *widget = GTK_WIDGET (text_view);
1399 GtkTargetList *target_list;
1400 GtkTextViewPrivate *priv;
1402 text_view->priv = GTK_TEXT_VIEW_GET_PRIVATE (text_view);
1403 priv = text_view->priv;
1405 gtk_widget_set_can_focus (widget, TRUE);
1407 /* Set up default style */
1408 priv->wrap_mode = GTK_WRAP_NONE;
1409 priv->pixels_above_lines = 0;
1410 priv->pixels_below_lines = 0;
1411 priv->pixels_inside_wrap = 0;
1412 priv->justify = GTK_JUSTIFY_LEFT;
1413 priv->left_margin = 0;
1414 priv->right_margin = 0;
1417 priv->editable = TRUE;
1419 priv->scroll_after_paste = TRUE;
1421 gtk_drag_dest_set (widget, 0, NULL, 0,
1422 GDK_ACTION_COPY | GDK_ACTION_MOVE);
1424 target_list = gtk_target_list_new (NULL, 0);
1425 gtk_drag_dest_set_target_list (widget, target_list);
1426 gtk_target_list_unref (target_list);
1428 priv->virtual_cursor_x = -1;
1429 priv->virtual_cursor_y = -1;
1431 /* This object is completely private. No external entity can gain a reference
1432 * to it; so we create it here and destroy it in finalize ().
1434 priv->im_context = gtk_im_multicontext_new ();
1436 g_signal_connect (priv->im_context, "commit",
1437 G_CALLBACK (gtk_text_view_commit_handler), text_view);
1438 g_signal_connect (priv->im_context, "preedit-changed",
1439 G_CALLBACK (gtk_text_view_preedit_changed_handler), text_view);
1440 g_signal_connect (priv->im_context, "retrieve-surrounding",
1441 G_CALLBACK (gtk_text_view_retrieve_surrounding_handler), text_view);
1442 g_signal_connect (priv->im_context, "delete-surrounding",
1443 G_CALLBACK (gtk_text_view_delete_surrounding_handler), text_view);
1445 priv->cursor_visible = TRUE;
1447 priv->accepts_tab = TRUE;
1449 priv->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT,
1452 priv->drag_start_x = -1;
1453 priv->drag_start_y = -1;
1455 priv->pending_place_cursor_button = 0;
1457 /* We handle all our own redrawing */
1458 gtk_widget_set_redraw_on_allocate (widget, FALSE);
1462 * gtk_text_view_new:
1464 * Creates a new #GtkTextView. If you don't call gtk_text_view_set_buffer()
1465 * before using the text view, an empty default buffer will be created
1466 * for you. Get the buffer with gtk_text_view_get_buffer(). If you want
1467 * to specify your own buffer, consider gtk_text_view_new_with_buffer().
1469 * Return value: a new #GtkTextView
1472 gtk_text_view_new (void)
1474 return g_object_new (GTK_TYPE_TEXT_VIEW, NULL);
1478 * gtk_text_view_new_with_buffer:
1479 * @buffer: a #GtkTextBuffer
1481 * Creates a new #GtkTextView widget displaying the buffer
1482 * @buffer. One buffer can be shared among many widgets.
1483 * @buffer may be %NULL to create a default buffer, in which case
1484 * this function is equivalent to gtk_text_view_new(). The
1485 * text view adds its own reference count to the buffer; it does not
1486 * take over an existing reference.
1488 * Return value: a new #GtkTextView.
1491 gtk_text_view_new_with_buffer (GtkTextBuffer *buffer)
1493 GtkTextView *text_view;
1495 text_view = (GtkTextView*)gtk_text_view_new ();
1497 gtk_text_view_set_buffer (text_view, buffer);
1499 return GTK_WIDGET (text_view);
1503 * gtk_text_view_set_buffer:
1504 * @text_view: a #GtkTextView
1505 * @buffer: (allow-none): a #GtkTextBuffer
1507 * Sets @buffer as the buffer being displayed by @text_view. The previous
1508 * buffer displayed by the text view is unreferenced, and a reference is
1509 * added to @buffer. If you owned a reference to @buffer before passing it
1510 * to this function, you must remove that reference yourself; #GtkTextView
1511 * will not "adopt" it.
1514 gtk_text_view_set_buffer (GtkTextView *text_view,
1515 GtkTextBuffer *buffer)
1517 GtkTextViewPrivate *priv;
1518 GtkTextBuffer *old_buffer;
1520 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1521 g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer));
1523 priv = text_view->priv;
1525 if (priv->buffer == buffer)
1528 old_buffer = priv->buffer;
1529 if (priv->buffer != NULL)
1531 /* Destroy all anchored children */
1535 copy = g_slist_copy (priv->children);
1537 while (tmp_list != NULL)
1539 GtkTextViewChild *vc = tmp_list->data;
1543 gtk_widget_destroy (vc->widget);
1544 /* vc may now be invalid! */
1547 tmp_list = g_slist_next (tmp_list);
1550 g_slist_free (copy);
1552 g_signal_handlers_disconnect_by_func (priv->buffer,
1553 gtk_text_view_mark_set_handler,
1555 g_signal_handlers_disconnect_by_func (priv->buffer,
1556 gtk_text_view_target_list_notify,
1558 g_signal_handlers_disconnect_by_func (priv->buffer,
1559 gtk_text_view_paste_done_handler,
1562 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
1564 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1565 GDK_SELECTION_PRIMARY);
1566 gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard);
1570 gtk_text_layout_set_buffer (priv->layout, NULL);
1572 priv->dnd_mark = NULL;
1573 priv->first_para_mark = NULL;
1574 cancel_pending_scroll (text_view);
1577 priv->buffer = buffer;
1580 gtk_text_layout_set_buffer (priv->layout, buffer);
1586 g_object_ref (buffer);
1588 gtk_text_buffer_get_iter_at_offset (priv->buffer, &start, 0);
1590 priv->dnd_mark = gtk_text_buffer_create_mark (priv->buffer,
1594 priv->first_para_mark = gtk_text_buffer_create_mark (priv->buffer,
1598 priv->first_para_pixels = 0;
1601 g_signal_connect (priv->buffer, "mark-set",
1602 G_CALLBACK (gtk_text_view_mark_set_handler),
1604 g_signal_connect (priv->buffer, "notify::paste-target-list",
1605 G_CALLBACK (gtk_text_view_target_list_notify),
1607 g_signal_connect (priv->buffer, "paste-done",
1608 G_CALLBACK (gtk_text_view_paste_done_handler),
1611 gtk_text_view_target_list_notify (priv->buffer, NULL, text_view);
1613 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
1615 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1616 GDK_SELECTION_PRIMARY);
1617 gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard);
1621 _gtk_text_view_accessible_set_buffer (text_view, old_buffer);
1623 g_object_unref (old_buffer);
1625 g_object_notify (G_OBJECT (text_view), "buffer");
1627 if (gtk_widget_get_visible (GTK_WIDGET (text_view)))
1628 gtk_widget_queue_draw (GTK_WIDGET (text_view));
1630 DV(g_print ("Invalidating due to set_buffer\n"));
1631 gtk_text_view_invalidate (text_view);
1634 static GtkTextBuffer*
1635 get_buffer (GtkTextView *text_view)
1637 if (text_view->priv->buffer == NULL)
1640 b = gtk_text_buffer_new (NULL);
1641 gtk_text_view_set_buffer (text_view, b);
1645 return text_view->priv->buffer;
1649 * gtk_text_view_get_buffer:
1650 * @text_view: a #GtkTextView
1652 * Returns the #GtkTextBuffer being displayed by this text view.
1653 * The reference count on the buffer is not incremented; the caller
1654 * of this function won't own a new reference.
1656 * Return value: (transfer none): a #GtkTextBuffer
1659 gtk_text_view_get_buffer (GtkTextView *text_view)
1661 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
1663 return get_buffer (text_view);
1667 * gtk_text_view_get_cursor_locations:
1668 * @text_view: a #GtkTextView
1669 * @iter: (allow-none): a #GtkTextIter
1670 * @strong: (out) (allow-none): location to store the strong
1671 * cursor position (may be %NULL)
1672 * @weak: (out) (allow-none): location to store the weak
1673 * cursor position (may be %NULL)
1675 * Given an @iter within a text layout, determine the positions of the
1676 * strong and weak cursors if the insertion point is at that
1677 * iterator. The position of each cursor is stored as a zero-width
1678 * rectangle. The strong cursor location is the location where
1679 * characters of the directionality equal to the base direction of the
1680 * paragraph are inserted. The weak cursor location is the location
1681 * where characters of the directionality opposite to the base
1682 * direction of the paragraph are inserted.
1684 * If @iter is %NULL, the actual cursor position is used.
1686 * Note that if @iter happens to be the actual cursor position, and
1687 * there is currently an IM preedit sequence being entered, the
1688 * returned locations will be adjusted to account for the preedit
1689 * cursor's offset within the preedit sequence.
1691 * The rectangle position is in buffer coordinates; use
1692 * gtk_text_view_buffer_to_window_coords() to convert these
1693 * coordinates to coordinates for one of the windows in the text view.
1698 gtk_text_view_get_cursor_locations (GtkTextView *text_view,
1699 const GtkTextIter *iter,
1700 GdkRectangle *strong,
1705 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1706 g_return_if_fail (iter == NULL ||
1707 gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1709 gtk_text_view_ensure_layout (text_view);
1714 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
1715 gtk_text_buffer_get_insert (get_buffer (text_view)));
1717 gtk_text_layout_get_cursor_locations (text_view->priv->layout, &insert,
1722 * gtk_text_view_get_iter_at_location:
1723 * @text_view: a #GtkTextView
1724 * @iter: (out): a #GtkTextIter
1725 * @x: x position, in buffer coordinates
1726 * @y: y position, in buffer coordinates
1728 * Retrieves the iterator at buffer coordinates @x and @y. Buffer
1729 * coordinates are coordinates for the entire buffer, not just the
1730 * currently-displayed portion. If you have coordinates from an
1731 * event, you have to convert those to buffer coordinates with
1732 * gtk_text_view_window_to_buffer_coords().
1735 gtk_text_view_get_iter_at_location (GtkTextView *text_view,
1740 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1741 g_return_if_fail (iter != NULL);
1743 gtk_text_view_ensure_layout (text_view);
1745 gtk_text_layout_get_iter_at_pixel (text_view->priv->layout,
1750 * gtk_text_view_get_iter_at_position:
1751 * @text_view: a #GtkTextView
1752 * @iter: (out): a #GtkTextIter
1753 * @trailing: (out) (allow-none): if non-%NULL, location to store an integer indicating where
1754 * in the grapheme the user clicked. It will either be
1755 * zero, or the number of characters in the grapheme.
1756 * 0 represents the trailing edge of the grapheme.
1757 * @x: x position, in buffer coordinates
1758 * @y: y position, in buffer coordinates
1760 * Retrieves the iterator pointing to the character at buffer
1761 * coordinates @x and @y. Buffer coordinates are coordinates for
1762 * the entire buffer, not just the currently-displayed portion.
1763 * If you have coordinates from an event, you have to convert
1764 * those to buffer coordinates with
1765 * gtk_text_view_window_to_buffer_coords().
1767 * Note that this is different from gtk_text_view_get_iter_at_location(),
1768 * which returns cursor locations, i.e. positions <emphasis>between</emphasis>
1774 gtk_text_view_get_iter_at_position (GtkTextView *text_view,
1780 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1781 g_return_if_fail (iter != NULL);
1783 gtk_text_view_ensure_layout (text_view);
1785 gtk_text_layout_get_iter_at_position (text_view->priv->layout,
1786 iter, trailing, x, y);
1790 * gtk_text_view_get_iter_location:
1791 * @text_view: a #GtkTextView
1792 * @iter: a #GtkTextIter
1793 * @location: (out): bounds of the character at @iter
1795 * Gets a rectangle which roughly contains the character at @iter.
1796 * The rectangle position is in buffer coordinates; use
1797 * gtk_text_view_buffer_to_window_coords() to convert these
1798 * coordinates to coordinates for one of the windows in the text view.
1801 gtk_text_view_get_iter_location (GtkTextView *text_view,
1802 const GtkTextIter *iter,
1803 GdkRectangle *location)
1805 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1806 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1808 gtk_text_view_ensure_layout (text_view);
1810 gtk_text_layout_get_iter_location (text_view->priv->layout, iter, location);
1814 * gtk_text_view_get_line_yrange:
1815 * @text_view: a #GtkTextView
1816 * @iter: a #GtkTextIter
1817 * @y: (out): return location for a y coordinate
1818 * @height: (out): return location for a height
1820 * Gets the y coordinate of the top of the line containing @iter,
1821 * and the height of the line. The coordinate is a buffer coordinate;
1822 * convert to window coordinates with gtk_text_view_buffer_to_window_coords().
1825 gtk_text_view_get_line_yrange (GtkTextView *text_view,
1826 const GtkTextIter *iter,
1830 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1831 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1833 gtk_text_view_ensure_layout (text_view);
1835 gtk_text_layout_get_line_yrange (text_view->priv->layout,
1842 * gtk_text_view_get_line_at_y:
1843 * @text_view: a #GtkTextView
1844 * @target_iter: (out): a #GtkTextIter
1845 * @y: a y coordinate
1846 * @line_top: (out): return location for top coordinate of the line
1848 * Gets the #GtkTextIter at the start of the line containing
1849 * the coordinate @y. @y is in buffer coordinates, convert from
1850 * window coordinates with gtk_text_view_window_to_buffer_coords().
1851 * If non-%NULL, @line_top will be filled with the coordinate of the top
1855 gtk_text_view_get_line_at_y (GtkTextView *text_view,
1856 GtkTextIter *target_iter,
1860 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1862 gtk_text_view_ensure_layout (text_view);
1864 gtk_text_layout_get_line_at_y (text_view->priv->layout,
1871 * gtk_text_view_scroll_to_iter:
1872 * @text_view: a #GtkTextView
1873 * @iter: a #GtkTextIter
1874 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1875 * @use_align: whether to use alignment arguments (if %FALSE,
1876 * just get the mark onscreen)
1877 * @xalign: horizontal alignment of mark within visible area
1878 * @yalign: vertical alignment of mark within visible area
1880 * Scrolls @text_view so that @iter is on the screen in the position
1881 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1882 * left or top, 1.0 indicates right or bottom, 0.5 means center.
1883 * If @use_align is %FALSE, the text scrolls the minimal distance to
1884 * get the mark onscreen, possibly not scrolling at all. The effective
1885 * screen for purposes of this function is reduced by a margin of size
1888 * Note that this function uses the currently-computed height of the
1889 * lines in the text buffer. Line heights are computed in an idle
1890 * handler; so this function may not have the desired effect if it's
1891 * called before the height computations. To avoid oddness, consider
1892 * using gtk_text_view_scroll_to_mark() which saves a point to be
1893 * scrolled to after line validation.
1895 * Return value: %TRUE if scrolling occurred
1898 gtk_text_view_scroll_to_iter (GtkTextView *text_view,
1900 gdouble within_margin,
1906 GdkRectangle screen;
1911 gboolean retval = FALSE;
1913 gint screen_xoffset, screen_yoffset;
1914 gint current_x_scroll, current_y_scroll;
1916 /* FIXME why don't we do the validate-at-scroll-destination thing
1917 * from flush_scroll in this function? I think it wasn't done before
1918 * because changed_handler was screwed up, but I could be wrong.
1921 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1922 g_return_val_if_fail (iter != NULL, FALSE);
1923 g_return_val_if_fail (within_margin >= 0.0 && within_margin < 0.5, FALSE);
1924 g_return_val_if_fail (xalign >= 0.0 && xalign <= 1.0, FALSE);
1925 g_return_val_if_fail (yalign >= 0.0 && yalign <= 1.0, FALSE);
1927 widget = GTK_WIDGET (text_view);
1929 DV(g_print(G_STRLOC"\n"));
1931 gtk_text_layout_get_iter_location (text_view->priv->layout,
1935 DV (g_print (" target rect %d,%d %d x %d\n", rect.x, rect.y, rect.width, rect.height));
1937 current_x_scroll = text_view->priv->xoffset;
1938 current_y_scroll = text_view->priv->yoffset;
1940 screen.x = current_x_scroll;
1941 screen.y = current_y_scroll;
1942 screen.width = SCREEN_WIDTH (widget);
1943 screen.height = SCREEN_HEIGHT (widget);
1945 screen_xoffset = screen.width * within_margin;
1946 screen_yoffset = screen.height * within_margin;
1948 screen.x += screen_xoffset;
1949 screen.y += screen_yoffset;
1950 screen.width -= screen_xoffset * 2;
1951 screen.height -= screen_yoffset * 2;
1953 /* paranoia check */
1954 if (screen.width < 1)
1956 if (screen.height < 1)
1959 /* The -1 here ensures that we leave enough space to draw the cursor
1960 * when this function is used for horizontal scrolling.
1962 screen_right = screen.x + screen.width - 1;
1963 screen_bottom = screen.y + screen.height;
1965 /* The alignment affects the point in the target character that we
1966 * choose to align. If we're doing right/bottom alignment, we align
1967 * the right/bottom edge of the character the mark is at; if we're
1968 * doing left/top we align the left/top edge of the character; if
1969 * we're doing center alignment we align the center of the
1973 /* Vertical scroll */
1976 scroll_dest = current_y_scroll;
1980 scroll_dest = rect.y + (rect.height * yalign) - (screen.height * yalign);
1982 /* if scroll_dest < screen.y, we move a negative increment (up),
1983 * else a positive increment (down)
1985 scroll_inc = scroll_dest - screen.y + screen_yoffset;
1989 /* move minimum to get onscreen */
1990 if (rect.y < screen.y)
1992 scroll_dest = rect.y;
1993 scroll_inc = scroll_dest - screen.y - screen_yoffset;
1995 else if ((rect.y + rect.height) > screen_bottom)
1997 scroll_dest = rect.y + rect.height;
1998 scroll_inc = scroll_dest - screen_bottom + screen_yoffset;
2002 if (scroll_inc != 0)
2004 gtk_adjustment_set_value (text_view->priv->vadjustment,
2005 current_y_scroll + scroll_inc);
2007 DV (g_print (" vert increment %d\n", scroll_inc));
2010 /* Horizontal scroll */
2013 scroll_dest = current_x_scroll;
2017 scroll_dest = rect.x + (rect.width * xalign) - (screen.width * xalign);
2019 /* if scroll_dest < screen.y, we move a negative increment (left),
2020 * else a positive increment (right)
2022 scroll_inc = scroll_dest - screen.x + screen_xoffset;
2026 /* move minimum to get onscreen */
2027 if (rect.x < screen.x)
2029 scroll_dest = rect.x;
2030 scroll_inc = scroll_dest - screen.x - screen_xoffset;
2032 else if ((rect.x + rect.width) > screen_right)
2034 scroll_dest = rect.x + rect.width;
2035 scroll_inc = scroll_dest - screen_right + screen_xoffset;
2039 if (scroll_inc != 0)
2041 gtk_adjustment_set_value (text_view->priv->hadjustment,
2042 current_x_scroll + scroll_inc);
2044 DV (g_print (" horiz increment %d\n", scroll_inc));
2047 retval = (current_y_scroll != gtk_adjustment_get_value (text_view->priv->vadjustment))
2048 || (current_x_scroll != gtk_adjustment_get_value (text_view->priv->hadjustment));
2052 DV(g_print (">Actually scrolled ("G_STRLOC")\n"));
2056 DV(g_print (">Didn't end up scrolling ("G_STRLOC")\n"));
2063 free_pending_scroll (GtkTextPendingScroll *scroll)
2065 if (!gtk_text_mark_get_deleted (scroll->mark))
2066 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark),
2068 g_object_unref (scroll->mark);
2073 cancel_pending_scroll (GtkTextView *text_view)
2075 if (text_view->priv->pending_scroll)
2077 free_pending_scroll (text_view->priv->pending_scroll);
2078 text_view->priv->pending_scroll = NULL;
2083 gtk_text_view_queue_scroll (GtkTextView *text_view,
2085 gdouble within_margin,
2091 GtkTextPendingScroll *scroll;
2093 DV(g_print(G_STRLOC"\n"));
2095 scroll = g_new (GtkTextPendingScroll, 1);
2097 scroll->within_margin = within_margin;
2098 scroll->use_align = use_align;
2099 scroll->xalign = xalign;
2100 scroll->yalign = yalign;
2102 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
2104 scroll->mark = gtk_text_buffer_create_mark (get_buffer (text_view),
2107 gtk_text_mark_get_left_gravity (mark));
2109 g_object_ref (scroll->mark);
2111 cancel_pending_scroll (text_view);
2113 text_view->priv->pending_scroll = scroll;
2117 gtk_text_view_flush_scroll (GtkTextView *text_view)
2119 GtkAllocation allocation;
2121 GtkTextPendingScroll *scroll;
2125 widget = GTK_WIDGET (text_view);
2127 DV(g_print(G_STRLOC"\n"));
2129 if (text_view->priv->pending_scroll == NULL)
2131 DV (g_print ("in flush scroll, no pending scroll\n"));
2135 scroll = text_view->priv->pending_scroll;
2137 /* avoid recursion */
2138 text_view->priv->pending_scroll = NULL;
2140 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, scroll->mark);
2142 /* Validate area around the scroll destination, so the adjustment
2143 * can meaningfully point into that area. We must validate
2144 * enough area to be sure that after we scroll, everything onscreen
2145 * is valid; otherwise, validation will maintain the first para
2146 * in one place, but may push the target iter off the bottom of
2149 DV(g_print (">Validating scroll destination ("G_STRLOC")\n"));
2150 gtk_widget_get_allocation (widget, &allocation);
2151 gtk_text_layout_validate_yrange (text_view->priv->layout, &iter,
2152 -(allocation.height * 2),
2153 allocation.height * 2);
2155 DV(g_print (">Done validating scroll destination ("G_STRLOC")\n"));
2157 /* Ensure we have updated width/height */
2158 gtk_text_view_update_adjustments (text_view);
2160 retval = gtk_text_view_scroll_to_iter (text_view,
2162 scroll->within_margin,
2167 free_pending_scroll (scroll);
2173 gtk_text_view_update_adjustments (GtkTextView *text_view)
2175 GtkTextViewPrivate *priv;
2176 gint width = 0, height = 0;
2178 DV(g_print(">Updating adjustments ("G_STRLOC")\n"));
2180 priv = text_view->priv;
2183 gtk_text_layout_get_size (priv->layout, &width, &height);
2185 /* Make room for the cursor after the last character in the widest line */
2186 width += SPACE_FOR_CURSOR;
2188 if (priv->width != width || priv->height != height)
2190 if (priv->width != width)
2191 priv->width_changed = TRUE;
2193 priv->width = width;
2194 priv->height = height;
2196 gtk_text_view_set_hadjustment_values (text_view);
2197 gtk_text_view_set_vadjustment_values (text_view);
2202 gtk_text_view_update_layout_width (GtkTextView *text_view)
2204 DV(g_print(">Updating layout width ("G_STRLOC")\n"));
2206 gtk_text_view_ensure_layout (text_view);
2208 gtk_text_layout_set_screen_width (text_view->priv->layout,
2209 MAX (1, SCREEN_WIDTH (text_view) - SPACE_FOR_CURSOR));
2213 gtk_text_view_update_im_spot_location (GtkTextView *text_view)
2217 if (text_view->priv->layout == NULL)
2220 gtk_text_view_get_cursor_locations (text_view, NULL, &area, NULL);
2222 area.x -= text_view->priv->xoffset;
2223 area.y -= text_view->priv->yoffset;
2225 /* Width returned by Pango indicates direction of cursor,
2226 * by its sign more than the size of cursor.
2230 gtk_im_context_set_cursor_location (text_view->priv->im_context, &area);
2234 do_update_im_spot_location (gpointer text_view)
2236 GtkTextViewPrivate *priv;
2238 priv = GTK_TEXT_VIEW (text_view)->priv;
2239 priv->im_spot_idle = 0;
2241 gtk_text_view_update_im_spot_location (text_view);
2246 queue_update_im_spot_location (GtkTextView *text_view)
2248 GtkTextViewPrivate *priv;
2250 priv = text_view->priv;
2252 /* Use priority a little higher than GTK_TEXT_VIEW_PRIORITY_VALIDATE,
2253 * so we don't wait until the entire buffer has been validated. */
2254 if (!priv->im_spot_idle)
2255 priv->im_spot_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE - 1,
2256 do_update_im_spot_location,
2262 flush_update_im_spot_location (GtkTextView *text_view)
2264 GtkTextViewPrivate *priv;
2266 priv = text_view->priv;
2268 if (priv->im_spot_idle)
2270 g_source_remove (priv->im_spot_idle);
2271 priv->im_spot_idle = 0;
2272 gtk_text_view_update_im_spot_location (text_view);
2277 * gtk_text_view_scroll_to_mark:
2278 * @text_view: a #GtkTextView
2279 * @mark: a #GtkTextMark
2280 * @within_margin: margin as a [0.0,0.5) fraction of screen size
2281 * @use_align: whether to use alignment arguments (if %FALSE, just
2282 * get the mark onscreen)
2283 * @xalign: horizontal alignment of mark within visible area
2284 * @yalign: vertical alignment of mark within visible area
2286 * Scrolls @text_view so that @mark is on the screen in the position
2287 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
2288 * left or top, 1.0 indicates right or bottom, 0.5 means center.
2289 * If @use_align is %FALSE, the text scrolls the minimal distance to
2290 * get the mark onscreen, possibly not scrolling at all. The effective
2291 * screen for purposes of this function is reduced by a margin of size
2295 gtk_text_view_scroll_to_mark (GtkTextView *text_view,
2297 gdouble within_margin,
2302 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2303 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2304 g_return_if_fail (within_margin >= 0.0 && within_margin < 0.5);
2305 g_return_if_fail (xalign >= 0.0 && xalign <= 1.0);
2306 g_return_if_fail (yalign >= 0.0 && yalign <= 1.0);
2308 /* We need to verify that the buffer contains the mark, otherwise this
2309 * can lead to data structure corruption later on.
2311 g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark));
2313 gtk_text_view_queue_scroll (text_view, mark,
2319 /* If no validation is pending, we need to go ahead and force an
2322 if (text_view->priv->layout &&
2323 gtk_text_layout_is_valid (text_view->priv->layout))
2324 gtk_text_view_flush_scroll (text_view);
2328 * gtk_text_view_scroll_mark_onscreen:
2329 * @text_view: a #GtkTextView
2330 * @mark: a mark in the buffer for @text_view
2332 * Scrolls @text_view the minimum distance such that @mark is contained
2333 * within the visible area of the widget.
2336 gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
2339 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2340 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2342 /* We need to verify that the buffer contains the mark, otherwise this
2343 * can lead to data structure corruption later on.
2345 g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark));
2347 gtk_text_view_scroll_to_mark (text_view, mark, 0.0, FALSE, 0.0, 0.0);
2351 clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter)
2353 GdkRectangle visible_rect;
2354 gtk_text_view_get_visible_rect (text_view, &visible_rect);
2356 return gtk_text_layout_clamp_iter_to_vrange (text_view->priv->layout, iter,
2358 visible_rect.y + visible_rect.height);
2362 * gtk_text_view_move_mark_onscreen:
2363 * @text_view: a #GtkTextView
2364 * @mark: a #GtkTextMark
2366 * Moves a mark within the buffer so that it's
2367 * located within the currently-visible text area.
2369 * Return value: %TRUE if the mark moved (wasn't already onscreen)
2372 gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
2377 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2378 g_return_val_if_fail (mark != NULL, FALSE);
2380 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
2382 if (clamp_iter_onscreen (text_view, &iter))
2384 gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter);
2392 * gtk_text_view_get_visible_rect:
2393 * @text_view: a #GtkTextView
2394 * @visible_rect: (out): rectangle to fill
2396 * Fills @visible_rect with the currently-visible
2397 * region of the buffer, in buffer coordinates. Convert to window coordinates
2398 * with gtk_text_view_buffer_to_window_coords().
2401 gtk_text_view_get_visible_rect (GtkTextView *text_view,
2402 GdkRectangle *visible_rect)
2406 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2408 widget = GTK_WIDGET (text_view);
2412 visible_rect->x = text_view->priv->xoffset;
2413 visible_rect->y = text_view->priv->yoffset;
2414 visible_rect->width = SCREEN_WIDTH (widget);
2415 visible_rect->height = SCREEN_HEIGHT (widget);
2417 DV(g_print(" visible rect: %d,%d %d x %d\n",
2420 visible_rect->width,
2421 visible_rect->height));
2426 * gtk_text_view_set_wrap_mode:
2427 * @text_view: a #GtkTextView
2428 * @wrap_mode: a #GtkWrapMode
2430 * Sets the line wrapping for the view.
2433 gtk_text_view_set_wrap_mode (GtkTextView *text_view,
2434 GtkWrapMode wrap_mode)
2436 GtkTextViewPrivate *priv;
2438 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2440 priv = text_view->priv;
2442 if (priv->wrap_mode != wrap_mode)
2444 priv->wrap_mode = wrap_mode;
2446 if (priv->layout && priv->layout->default_style)
2448 priv->layout->default_style->wrap_mode = wrap_mode;
2449 gtk_text_layout_default_style_changed (priv->layout);
2453 g_object_notify (G_OBJECT (text_view), "wrap-mode");
2457 * gtk_text_view_get_wrap_mode:
2458 * @text_view: a #GtkTextView
2460 * Gets the line wrapping for the view.
2462 * Return value: the line wrap setting
2465 gtk_text_view_get_wrap_mode (GtkTextView *text_view)
2467 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAP_NONE);
2469 return text_view->priv->wrap_mode;
2473 * gtk_text_view_set_editable:
2474 * @text_view: a #GtkTextView
2475 * @setting: whether it's editable
2477 * Sets the default editability of the #GtkTextView. You can override
2478 * this default setting with tags in the buffer, using the "editable"
2479 * attribute of tags.
2482 gtk_text_view_set_editable (GtkTextView *text_view,
2485 GtkTextViewPrivate *priv;
2487 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2489 priv = text_view->priv;
2490 setting = setting != FALSE;
2492 if (priv->editable != setting)
2496 gtk_text_view_reset_im_context(text_view);
2497 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
2498 gtk_im_context_focus_out (priv->im_context);
2501 priv->editable = setting;
2503 if (setting && gtk_widget_has_focus (GTK_WIDGET (text_view)))
2504 gtk_im_context_focus_in (priv->im_context);
2506 if (priv->layout && priv->layout->default_style)
2508 gtk_text_layout_set_overwrite_mode (priv->layout,
2509 priv->overwrite_mode && priv->editable);
2510 priv->layout->default_style->editable = priv->editable;
2511 gtk_text_layout_default_style_changed (priv->layout);
2514 g_object_notify (G_OBJECT (text_view), "editable");
2519 * gtk_text_view_get_editable:
2520 * @text_view: a #GtkTextView
2522 * Returns the default editability of the #GtkTextView. Tags in the
2523 * buffer may override this setting for some ranges of text.
2525 * Return value: whether text is editable by default
2528 gtk_text_view_get_editable (GtkTextView *text_view)
2530 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2532 return text_view->priv->editable;
2536 * gtk_text_view_set_pixels_above_lines:
2537 * @text_view: a #GtkTextView
2538 * @pixels_above_lines: pixels above paragraphs
2540 * Sets the default number of blank pixels above paragraphs in @text_view.
2541 * Tags in the buffer for @text_view may override the defaults.
2544 gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
2545 gint pixels_above_lines)
2547 GtkTextViewPrivate *priv;
2549 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2551 priv = text_view->priv;
2553 if (priv->pixels_above_lines != pixels_above_lines)
2555 priv->pixels_above_lines = pixels_above_lines;
2557 if (priv->layout && priv->layout->default_style)
2559 priv->layout->default_style->pixels_above_lines = pixels_above_lines;
2560 gtk_text_layout_default_style_changed (priv->layout);
2563 g_object_notify (G_OBJECT (text_view), "pixels-above-lines");
2568 * gtk_text_view_get_pixels_above_lines:
2569 * @text_view: a #GtkTextView
2571 * Gets the default number of pixels to put above paragraphs.
2573 * Return value: default number of pixels above paragraphs
2576 gtk_text_view_get_pixels_above_lines (GtkTextView *text_view)
2578 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2580 return text_view->priv->pixels_above_lines;
2584 * gtk_text_view_set_pixels_below_lines:
2585 * @text_view: a #GtkTextView
2586 * @pixels_below_lines: pixels below paragraphs
2588 * Sets the default number of pixels of blank space
2589 * to put below paragraphs in @text_view. May be overridden
2590 * by tags applied to @text_view's buffer.
2593 gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
2594 gint pixels_below_lines)
2596 GtkTextViewPrivate *priv;
2598 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2600 priv = text_view->priv;
2602 if (priv->pixels_below_lines != pixels_below_lines)
2604 priv->pixels_below_lines = pixels_below_lines;
2606 if (priv->layout && priv->layout->default_style)
2608 priv->layout->default_style->pixels_below_lines = pixels_below_lines;
2609 gtk_text_layout_default_style_changed (priv->layout);
2612 g_object_notify (G_OBJECT (text_view), "pixels-below-lines");
2617 * gtk_text_view_get_pixels_below_lines:
2618 * @text_view: a #GtkTextView
2620 * Gets the value set by gtk_text_view_set_pixels_below_lines().
2622 * Return value: default number of blank pixels below paragraphs
2625 gtk_text_view_get_pixels_below_lines (GtkTextView *text_view)
2627 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2629 return text_view->priv->pixels_below_lines;
2633 * gtk_text_view_set_pixels_inside_wrap:
2634 * @text_view: a #GtkTextView
2635 * @pixels_inside_wrap: default number of pixels between wrapped lines
2637 * Sets the default number of pixels of blank space to leave between
2638 * display/wrapped lines within a paragraph. May be overridden by
2639 * tags in @text_view's buffer.
2642 gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
2643 gint pixels_inside_wrap)
2645 GtkTextViewPrivate *priv;
2647 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2649 priv = text_view->priv;
2651 if (priv->pixels_inside_wrap != pixels_inside_wrap)
2653 priv->pixels_inside_wrap = pixels_inside_wrap;
2655 if (priv->layout && priv->layout->default_style)
2657 priv->layout->default_style->pixels_inside_wrap = pixels_inside_wrap;
2658 gtk_text_layout_default_style_changed (priv->layout);
2661 g_object_notify (G_OBJECT (text_view), "pixels-inside-wrap");
2666 * gtk_text_view_get_pixels_inside_wrap:
2667 * @text_view: a #GtkTextView
2669 * Gets the value set by gtk_text_view_set_pixels_inside_wrap().
2671 * Return value: default number of pixels of blank space between wrapped lines
2674 gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view)
2676 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2678 return text_view->priv->pixels_inside_wrap;
2682 * gtk_text_view_set_justification:
2683 * @text_view: a #GtkTextView
2684 * @justification: justification
2686 * Sets the default justification of text in @text_view.
2687 * Tags in the view's buffer may override the default.
2691 gtk_text_view_set_justification (GtkTextView *text_view,
2692 GtkJustification justification)
2694 GtkTextViewPrivate *priv;
2696 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2698 priv = text_view->priv;
2700 if (priv->justify != justification)
2702 priv->justify = justification;
2704 if (priv->layout && priv->layout->default_style)
2706 priv->layout->default_style->justification = justification;
2707 gtk_text_layout_default_style_changed (priv->layout);
2710 g_object_notify (G_OBJECT (text_view), "justification");
2715 * gtk_text_view_get_justification:
2716 * @text_view: a #GtkTextView
2718 * Gets the default justification of paragraphs in @text_view.
2719 * Tags in the buffer may override the default.
2721 * Return value: default justification
2724 gtk_text_view_get_justification (GtkTextView *text_view)
2726 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_JUSTIFY_LEFT);
2728 return text_view->priv->justify;
2732 * gtk_text_view_set_left_margin:
2733 * @text_view: a #GtkTextView
2734 * @left_margin: left margin in pixels
2736 * Sets the default left margin for text in @text_view.
2737 * Tags in the buffer may override the default.
2740 gtk_text_view_set_left_margin (GtkTextView *text_view,
2743 GtkTextViewPrivate *priv;
2745 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2747 priv = text_view->priv;
2749 if (priv->left_margin != left_margin)
2751 priv->left_margin = left_margin;
2753 if (priv->layout && priv->layout->default_style)
2755 priv->layout->default_style->left_margin = left_margin;
2756 gtk_text_layout_default_style_changed (priv->layout);
2759 g_object_notify (G_OBJECT (text_view), "left-margin");
2764 * gtk_text_view_get_left_margin:
2765 * @text_view: a #GtkTextView
2767 * Gets the default left margin size of paragraphs in the @text_view.
2768 * Tags in the buffer may override the default.
2770 * Return value: left margin in pixels
2773 gtk_text_view_get_left_margin (GtkTextView *text_view)
2775 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2777 return text_view->priv->left_margin;
2781 * gtk_text_view_set_right_margin:
2782 * @text_view: a #GtkTextView
2783 * @right_margin: right margin in pixels
2785 * Sets the default right margin for text in the text view.
2786 * Tags in the buffer may override the default.
2789 gtk_text_view_set_right_margin (GtkTextView *text_view,
2792 GtkTextViewPrivate *priv = text_view->priv;
2794 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2796 if (priv->right_margin != right_margin)
2798 priv->right_margin = right_margin;
2800 if (priv->layout && priv->layout->default_style)
2802 priv->layout->default_style->right_margin = right_margin;
2803 gtk_text_layout_default_style_changed (priv->layout);
2806 g_object_notify (G_OBJECT (text_view), "right-margin");
2811 * gtk_text_view_get_right_margin:
2812 * @text_view: a #GtkTextView
2814 * Gets the default right margin for text in @text_view. Tags
2815 * in the buffer may override the default.
2817 * Return value: right margin in pixels
2820 gtk_text_view_get_right_margin (GtkTextView *text_view)
2822 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2824 return text_view->priv->right_margin;
2828 * gtk_text_view_set_indent:
2829 * @text_view: a #GtkTextView
2830 * @indent: indentation in pixels
2832 * Sets the default indentation for paragraphs in @text_view.
2833 * Tags in the buffer may override the default.
2836 gtk_text_view_set_indent (GtkTextView *text_view,
2839 GtkTextViewPrivate *priv;
2841 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2843 priv = text_view->priv;
2845 if (priv->indent != indent)
2847 priv->indent = indent;
2849 if (priv->layout && priv->layout->default_style)
2851 priv->layout->default_style->indent = indent;
2852 gtk_text_layout_default_style_changed (priv->layout);
2855 g_object_notify (G_OBJECT (text_view), "indent");
2860 * gtk_text_view_get_indent:
2861 * @text_view: a #GtkTextView
2863 * Gets the default indentation of paragraphs in @text_view.
2864 * Tags in the view's buffer may override the default.
2865 * The indentation may be negative.
2867 * Return value: number of pixels of indentation
2870 gtk_text_view_get_indent (GtkTextView *text_view)
2872 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2874 return text_view->priv->indent;
2878 * gtk_text_view_set_tabs:
2879 * @text_view: a #GtkTextView
2880 * @tabs: tabs as a #PangoTabArray
2882 * Sets the default tab stops for paragraphs in @text_view.
2883 * Tags in the buffer may override the default.
2886 gtk_text_view_set_tabs (GtkTextView *text_view,
2887 PangoTabArray *tabs)
2889 GtkTextViewPrivate *priv;
2891 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2893 priv = text_view->priv;
2896 pango_tab_array_free (priv->tabs);
2898 priv->tabs = tabs ? pango_tab_array_copy (tabs) : NULL;
2900 if (priv->layout && priv->layout->default_style)
2902 /* some unkosher futzing in internal struct details... */
2903 if (priv->layout->default_style->tabs)
2904 pango_tab_array_free (priv->layout->default_style->tabs);
2906 priv->layout->default_style->tabs =
2907 priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL;
2909 gtk_text_layout_default_style_changed (priv->layout);
2912 g_object_notify (G_OBJECT (text_view), "tabs");
2916 * gtk_text_view_get_tabs:
2917 * @text_view: a #GtkTextView
2919 * Gets the default tabs for @text_view. Tags in the buffer may
2920 * override the defaults. The returned array will be %NULL if
2921 * "standard" (8-space) tabs are used. Free the return value
2922 * with pango_tab_array_free().
2924 * Return value: copy of default tab array, or %NULL if "standard"
2925 * tabs are used; must be freed with pango_tab_array_free().
2928 gtk_text_view_get_tabs (GtkTextView *text_view)
2930 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
2932 return text_view->priv->tabs ? pango_tab_array_copy (text_view->priv->tabs) : NULL;
2936 gtk_text_view_toggle_cursor_visible (GtkTextView *text_view)
2938 gtk_text_view_set_cursor_visible (text_view, !text_view->priv->cursor_visible);
2942 * gtk_text_view_set_cursor_visible:
2943 * @text_view: a #GtkTextView
2944 * @setting: whether to show the insertion cursor
2946 * Toggles whether the insertion point is displayed. A buffer with no editable
2947 * text probably shouldn't have a visible cursor, so you may want to turn
2951 gtk_text_view_set_cursor_visible (GtkTextView *text_view,
2954 GtkTextViewPrivate *priv;
2956 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2958 priv = text_view->priv;
2959 setting = (setting != FALSE);
2961 if (priv->cursor_visible != setting)
2963 priv->cursor_visible = setting;
2965 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
2969 gtk_text_layout_set_cursor_visible (priv->layout, setting);
2970 gtk_text_view_check_cursor_blink (text_view);
2974 g_object_notify (G_OBJECT (text_view), "cursor-visible");
2979 * gtk_text_view_get_cursor_visible:
2980 * @text_view: a #GtkTextView
2982 * Find out whether the cursor is being displayed.
2984 * Return value: whether the insertion mark is visible
2987 gtk_text_view_get_cursor_visible (GtkTextView *text_view)
2989 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2991 return text_view->priv->cursor_visible;
2996 * gtk_text_view_place_cursor_onscreen:
2997 * @text_view: a #GtkTextView
2999 * Moves the cursor to the currently visible region of the
3000 * buffer, it it isn't there already.
3002 * Return value: %TRUE if the cursor had to be moved.
3005 gtk_text_view_place_cursor_onscreen (GtkTextView *text_view)
3009 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
3011 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
3012 gtk_text_buffer_get_insert (get_buffer (text_view)));
3014 if (clamp_iter_onscreen (text_view, &insert))
3016 gtk_text_buffer_place_cursor (get_buffer (text_view), &insert);
3024 gtk_text_view_remove_validate_idles (GtkTextView *text_view)
3026 GtkTextViewPrivate *priv = text_view->priv;
3028 if (priv->first_validate_idle != 0)
3030 DV (g_print ("Removing first validate idle: %s\n", G_STRLOC));
3031 g_source_remove (priv->first_validate_idle);
3032 priv->first_validate_idle = 0;
3035 if (priv->incremental_validate_idle != 0)
3037 g_source_remove (priv->incremental_validate_idle);
3038 priv->incremental_validate_idle = 0;
3043 gtk_text_view_destroy (GtkWidget *widget)
3045 GtkTextView *text_view;
3046 GtkTextViewPrivate *priv;
3048 text_view = GTK_TEXT_VIEW (widget);
3049 priv = text_view->priv;
3051 gtk_text_view_remove_validate_idles (text_view);
3052 gtk_text_view_set_buffer (text_view, NULL);
3053 gtk_text_view_destroy_layout (text_view);
3055 if (text_view->priv->scroll_timeout)
3057 g_source_remove (text_view->priv->scroll_timeout);
3058 text_view->priv->scroll_timeout = 0;
3061 if (priv->im_spot_idle)
3063 g_source_remove (priv->im_spot_idle);
3064 priv->im_spot_idle = 0;
3067 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->destroy (widget);
3071 gtk_text_view_finalize (GObject *object)
3073 GtkTextView *text_view;
3074 GtkTextViewPrivate *priv;
3076 text_view = GTK_TEXT_VIEW (object);
3077 priv = text_view->priv;
3079 gtk_text_view_destroy_layout (text_view);
3080 gtk_text_view_set_buffer (text_view, NULL);
3082 /* at this point, no "notify::buffer" handler should recreate the buffer. */
3083 g_assert (priv->buffer == NULL);
3085 cancel_pending_scroll (text_view);
3088 pango_tab_array_free (priv->tabs);
3090 if (priv->hadjustment)
3091 g_object_unref (priv->hadjustment);
3092 if (priv->vadjustment)
3093 g_object_unref (priv->vadjustment);
3095 text_window_free (priv->text_window);
3097 if (priv->left_window)
3098 text_window_free (priv->left_window);
3100 if (priv->top_window)
3101 text_window_free (priv->top_window);
3103 if (priv->right_window)
3104 text_window_free (priv->right_window);
3106 if (priv->bottom_window)
3107 text_window_free (priv->bottom_window);
3109 g_object_unref (priv->im_context);
3111 g_free (priv->im_module);
3113 G_OBJECT_CLASS (gtk_text_view_parent_class)->finalize (object);
3117 gtk_text_view_set_property (GObject *object,
3119 const GValue *value,
3122 GtkTextView *text_view;
3123 GtkTextViewPrivate *priv;
3125 text_view = GTK_TEXT_VIEW (object);
3126 priv = text_view->priv;
3130 case PROP_PIXELS_ABOVE_LINES:
3131 gtk_text_view_set_pixels_above_lines (text_view, g_value_get_int (value));
3134 case PROP_PIXELS_BELOW_LINES:
3135 gtk_text_view_set_pixels_below_lines (text_view, g_value_get_int (value));
3138 case PROP_PIXELS_INSIDE_WRAP:
3139 gtk_text_view_set_pixels_inside_wrap (text_view, g_value_get_int (value));
3143 gtk_text_view_set_editable (text_view, g_value_get_boolean (value));
3146 case PROP_WRAP_MODE:
3147 gtk_text_view_set_wrap_mode (text_view, g_value_get_enum (value));
3150 case PROP_JUSTIFICATION:
3151 gtk_text_view_set_justification (text_view, g_value_get_enum (value));
3154 case PROP_LEFT_MARGIN:
3155 gtk_text_view_set_left_margin (text_view, g_value_get_int (value));
3158 case PROP_RIGHT_MARGIN:
3159 gtk_text_view_set_right_margin (text_view, g_value_get_int (value));
3163 gtk_text_view_set_indent (text_view, g_value_get_int (value));
3167 gtk_text_view_set_tabs (text_view, g_value_get_boxed (value));
3170 case PROP_CURSOR_VISIBLE:
3171 gtk_text_view_set_cursor_visible (text_view, g_value_get_boolean (value));
3174 case PROP_OVERWRITE:
3175 gtk_text_view_set_overwrite (text_view, g_value_get_boolean (value));
3179 gtk_text_view_set_buffer (text_view, GTK_TEXT_BUFFER (g_value_get_object (value)));
3182 case PROP_ACCEPTS_TAB:
3183 gtk_text_view_set_accepts_tab (text_view, g_value_get_boolean (value));
3186 case PROP_IM_MODULE:
3187 g_free (priv->im_module);
3188 priv->im_module = g_value_dup_string (value);
3189 if (GTK_IS_IM_MULTICONTEXT (priv->im_context))
3190 gtk_im_multicontext_set_context_id (GTK_IM_MULTICONTEXT (priv->im_context), priv->im_module);
3193 case PROP_HADJUSTMENT:
3194 gtk_text_view_set_hadjustment (text_view, g_value_get_object (value));
3197 case PROP_VADJUSTMENT:
3198 gtk_text_view_set_vadjustment (text_view, g_value_get_object (value));
3201 case PROP_HSCROLL_POLICY:
3202 priv->hscroll_policy = g_value_get_enum (value);
3203 gtk_widget_queue_resize (GTK_WIDGET (text_view));
3206 case PROP_VSCROLL_POLICY:
3207 priv->vscroll_policy = g_value_get_enum (value);
3208 gtk_widget_queue_resize (GTK_WIDGET (text_view));
3211 case PROP_INPUT_PURPOSE:
3212 gtk_text_view_set_input_purpose (text_view, g_value_get_enum (value));
3215 case PROP_INPUT_HINTS:
3216 gtk_text_view_set_input_hints (text_view, g_value_get_flags (value));
3220 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3226 gtk_text_view_get_property (GObject *object,
3231 GtkTextView *text_view;
3232 GtkTextViewPrivate *priv;
3234 text_view = GTK_TEXT_VIEW (object);
3235 priv = text_view->priv;
3239 case PROP_PIXELS_ABOVE_LINES:
3240 g_value_set_int (value, priv->pixels_above_lines);
3243 case PROP_PIXELS_BELOW_LINES:
3244 g_value_set_int (value, priv->pixels_below_lines);
3247 case PROP_PIXELS_INSIDE_WRAP:
3248 g_value_set_int (value, priv->pixels_inside_wrap);
3252 g_value_set_boolean (value, priv->editable);
3255 case PROP_WRAP_MODE:
3256 g_value_set_enum (value, priv->wrap_mode);
3259 case PROP_JUSTIFICATION:
3260 g_value_set_enum (value, priv->justify);
3263 case PROP_LEFT_MARGIN:
3264 g_value_set_int (value, priv->left_margin);
3267 case PROP_RIGHT_MARGIN:
3268 g_value_set_int (value, priv->right_margin);
3272 g_value_set_int (value, priv->indent);
3276 g_value_set_boxed (value, priv->tabs);
3279 case PROP_CURSOR_VISIBLE:
3280 g_value_set_boolean (value, priv->cursor_visible);
3284 g_value_set_object (value, get_buffer (text_view));
3287 case PROP_OVERWRITE:
3288 g_value_set_boolean (value, priv->overwrite_mode);
3291 case PROP_ACCEPTS_TAB:
3292 g_value_set_boolean (value, priv->accepts_tab);
3295 case PROP_IM_MODULE:
3296 g_value_set_string (value, priv->im_module);
3299 case PROP_HADJUSTMENT:
3300 g_value_set_object (value, priv->hadjustment);
3303 case PROP_VADJUSTMENT:
3304 g_value_set_object (value, priv->vadjustment);
3307 case PROP_HSCROLL_POLICY:
3308 g_value_set_enum (value, priv->hscroll_policy);
3311 case PROP_VSCROLL_POLICY:
3312 g_value_set_enum (value, priv->vscroll_policy);
3315 case PROP_INPUT_PURPOSE:
3316 g_value_set_enum (value, gtk_text_view_get_input_purpose (text_view));
3319 case PROP_INPUT_HINTS:
3320 g_value_set_flags (value, gtk_text_view_get_input_hints (text_view));
3324 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3330 gtk_text_view_size_request (GtkWidget *widget,
3331 GtkRequisition *requisition)
3333 GtkTextView *text_view;
3334 GtkTextViewPrivate *priv;
3336 gint focus_edge_width;
3339 gboolean interior_focus;
3341 text_view = GTK_TEXT_VIEW (widget);
3342 priv = text_view->priv;
3344 gtk_widget_style_get (widget,
3345 "interior-focus", &interior_focus,
3346 "focus-line-width", &focus_width,
3350 focus_edge_width = 0;
3352 focus_edge_width = focus_width;
3356 priv->text_window->requisition.width = priv->layout->width;
3357 priv->text_window->requisition.height = priv->layout->height;
3361 priv->text_window->requisition.width = 0;
3362 priv->text_window->requisition.height = 0;
3365 requisition->width = priv->text_window->requisition.width + focus_edge_width * 2;
3366 requisition->height = priv->text_window->requisition.height + focus_edge_width * 2;
3368 if (priv->left_window)
3369 requisition->width += priv->left_window->requisition.width;
3371 if (priv->right_window)
3372 requisition->width += priv->right_window->requisition.width;
3374 if (priv->top_window)
3375 requisition->height += priv->top_window->requisition.height;
3377 if (priv->bottom_window)
3378 requisition->height += priv->bottom_window->requisition.height;
3380 border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view));
3381 requisition->width += border_width * 2;
3382 requisition->height += border_width * 2;
3384 tmp_list = priv->children;
3385 while (tmp_list != NULL)
3387 GtkTextViewChild *child = tmp_list->data;
3391 GtkRequisition child_req;
3392 GtkRequisition old_req;
3394 gtk_widget_get_preferred_size (child->widget, &old_req, NULL);
3396 gtk_widget_get_preferred_size (child->widget, &child_req, NULL);
3398 /* Invalidate layout lines if required */
3400 (old_req.width != child_req.width ||
3401 old_req.height != child_req.height))
3402 gtk_text_child_anchor_queue_resize (child->anchor,
3407 GtkRequisition child_req;
3409 gtk_widget_get_preferred_size (child->widget,
3413 tmp_list = g_slist_next (tmp_list);
3416 /* Cache the requested size of the text view so we can
3417 * compare it in the changed_handler() */
3418 priv->cached_size_request = *requisition;
3422 gtk_text_view_get_preferred_width (GtkWidget *widget,
3426 GtkRequisition requisition;
3428 gtk_text_view_size_request (widget, &requisition);
3430 *minimum = *natural = requisition.width;
3434 gtk_text_view_get_preferred_height (GtkWidget *widget,
3438 GtkRequisition requisition;
3440 gtk_text_view_size_request (widget, &requisition);
3442 *minimum = *natural = requisition.height;
3447 gtk_text_view_compute_child_allocation (GtkTextView *text_view,
3448 GtkTextViewChild *vc,
3449 GtkAllocation *allocation)
3455 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
3459 gtk_text_layout_get_line_yrange (text_view->priv->layout, &iter,
3462 buffer_y += vc->from_top_of_line;
3464 allocation->x = vc->from_left_of_buffer - text_view->priv->xoffset;
3465 allocation->y = buffer_y - text_view->priv->yoffset;
3467 gtk_widget_get_preferred_size (vc->widget, &req, NULL);
3468 allocation->width = req.width;
3469 allocation->height = req.height;
3473 gtk_text_view_update_child_allocation (GtkTextView *text_view,
3474 GtkTextViewChild *vc)
3476 GtkAllocation allocation;
3478 gtk_text_view_compute_child_allocation (text_view, vc, &allocation);
3480 gtk_widget_size_allocate (vc->widget, &allocation);
3483 g_print ("allocation for %p allocated to %d,%d yoffset = %d\n",
3485 vc->widget->allocation.x,
3486 vc->widget->allocation.y,
3487 text_view->priv->yoffset);
3492 gtk_text_view_child_allocated (GtkTextLayout *layout,
3498 GtkTextViewChild *vc = NULL;
3499 GtkTextView *text_view = data;
3501 /* x,y is the position of the child from the top of the line, and
3502 * from the left of the buffer. We have to translate that into text
3503 * window coordinates, then size_allocate the child.
3506 vc = g_object_get_data (G_OBJECT (child),
3507 "gtk-text-view-child");
3509 g_assert (vc != NULL);
3511 DV (g_print ("child allocated at %d,%d\n", x, y));
3513 vc->from_left_of_buffer = x;
3514 vc->from_top_of_line = y;
3516 gtk_text_view_update_child_allocation (text_view, vc);
3520 gtk_text_view_allocate_children (GtkTextView *text_view)
3524 DV(g_print(G_STRLOC"\n"));
3526 tmp_list = text_view->priv->children;
3527 while (tmp_list != NULL)
3529 GtkTextViewChild *child = tmp_list->data;
3531 g_assert (child != NULL);
3535 /* We need to force-validate the regions containing
3538 GtkTextIter child_loc;
3539 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
3543 /* Since anchored children are only ever allocated from
3544 * gtk_text_layout_get_line_display() we have to make sure
3545 * that the display line caching in the layout doesn't
3546 * get in the way. Invalidating the layout around the anchor
3549 if (_gtk_widget_get_alloc_needed (child->widget))
3551 GtkTextIter end = child_loc;
3552 gtk_text_iter_forward_char (&end);
3553 gtk_text_layout_invalidate (text_view->priv->layout, &child_loc, &end);
3556 gtk_text_layout_validate_yrange (text_view->priv->layout,
3562 GtkAllocation allocation;
3563 GtkRequisition child_req;
3565 allocation.x = child->x;
3566 allocation.y = child->y;
3568 gtk_widget_get_preferred_size (child->widget, &child_req, NULL);
3570 allocation.width = child_req.width;
3571 allocation.height = child_req.height;
3573 gtk_widget_size_allocate (child->widget, &allocation);
3576 tmp_list = g_slist_next (tmp_list);
3581 gtk_text_view_size_allocate (GtkWidget *widget,
3582 GtkAllocation *allocation)
3584 GtkAllocation widget_allocation;
3585 GtkTextView *text_view;
3586 GtkTextViewPrivate *priv;
3588 GdkRectangle text_rect;
3589 GdkRectangle left_rect;
3590 GdkRectangle right_rect;
3591 GdkRectangle top_rect;
3592 GdkRectangle bottom_rect;
3593 gint focus_edge_width;
3596 gboolean interior_focus;
3597 gboolean size_changed;
3599 text_view = GTK_TEXT_VIEW (widget);
3600 priv = text_view->priv;
3602 DV(g_print(G_STRLOC"\n"));
3604 gtk_widget_get_allocation (widget, &widget_allocation);
3606 widget_allocation.width != allocation->width ||
3607 widget_allocation.height != allocation->height;
3609 border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view));
3611 gtk_widget_set_allocation (widget, allocation);
3613 if (gtk_widget_get_realized (widget))
3615 gdk_window_move_resize (gtk_widget_get_window (widget),
3616 allocation->x, allocation->y,
3617 allocation->width, allocation->height);
3620 /* distribute width/height among child windows. Ensure all
3621 * windows get at least a 1x1 allocation.
3624 gtk_widget_style_get (widget,
3625 "interior-focus", &interior_focus,
3626 "focus-line-width", &focus_width,
3630 focus_edge_width = 0;
3632 focus_edge_width = focus_width;
3634 width = allocation->width - focus_edge_width * 2 - border_width * 2;
3636 if (priv->left_window)
3637 left_rect.width = priv->left_window->requisition.width;
3639 left_rect.width = 0;
3641 width -= left_rect.width;
3643 if (priv->right_window)
3644 right_rect.width = priv->right_window->requisition.width;
3646 right_rect.width = 0;
3648 width -= right_rect.width;
3650 text_rect.width = MAX (1, width);
3652 top_rect.width = text_rect.width;
3653 bottom_rect.width = text_rect.width;
3656 height = allocation->height - focus_edge_width * 2 - border_width * 2;
3658 if (priv->top_window)
3659 top_rect.height = priv->top_window->requisition.height;
3661 top_rect.height = 0;
3663 height -= top_rect.height;
3665 if (priv->bottom_window)
3666 bottom_rect.height = priv->bottom_window->requisition.height;
3668 bottom_rect.height = 0;
3670 height -= bottom_rect.height;
3672 text_rect.height = MAX (1, height);
3674 left_rect.height = text_rect.height;
3675 right_rect.height = text_rect.height;
3678 left_rect.x = focus_edge_width + border_width;
3679 top_rect.y = focus_edge_width + border_width;
3681 text_rect.x = left_rect.x + left_rect.width;
3682 text_rect.y = top_rect.y + top_rect.height;
3684 left_rect.y = text_rect.y;
3685 right_rect.y = text_rect.y;
3687 top_rect.x = text_rect.x;
3688 bottom_rect.x = text_rect.x;
3690 right_rect.x = text_rect.x + text_rect.width;
3691 bottom_rect.y = text_rect.y + text_rect.height;
3693 text_window_size_allocate (priv->text_window,
3696 if (priv->left_window)
3697 text_window_size_allocate (priv->left_window,
3700 if (priv->right_window)
3701 text_window_size_allocate (priv->right_window,
3704 if (priv->top_window)
3705 text_window_size_allocate (priv->top_window,
3708 if (priv->bottom_window)
3709 text_window_size_allocate (priv->bottom_window,
3712 gtk_text_view_update_layout_width (text_view);
3714 /* Note that this will do some layout validation */
3715 gtk_text_view_allocate_children (text_view);
3717 /* Update adjustments */
3718 gtk_text_view_set_hadjustment_values (text_view);
3719 gtk_text_view_set_vadjustment_values (text_view);
3721 /* The GTK resize loop processes all the pending exposes right
3722 * after doing the resize stuff, so the idle sizer won't have a
3723 * chance to run. So we do the work here.
3725 gtk_text_view_flush_first_validate (text_view);
3727 /* widget->window doesn't get auto-redrawn as the layout is computed, so has to
3730 if (size_changed && gtk_widget_get_realized (widget))
3731 gdk_window_invalidate_rect (gtk_widget_get_window (widget), NULL, FALSE);
3735 gtk_text_view_get_first_para_iter (GtkTextView *text_view,
3738 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter,
3739 text_view->priv->first_para_mark);
3743 gtk_text_view_validate_onscreen (GtkTextView *text_view)
3746 GtkTextViewPrivate *priv;
3748 widget = GTK_WIDGET (text_view);
3749 priv = text_view->priv;
3751 DV(g_print(">Validating onscreen ("G_STRLOC")\n"));
3753 if (SCREEN_HEIGHT (widget) > 0)
3755 GtkTextIter first_para;
3757 /* Be sure we've validated the stuff onscreen; if we
3758 * scrolled, these calls won't have any effect, because
3759 * they were called in the recursive validate_onscreen
3761 gtk_text_view_get_first_para_iter (text_view, &first_para);
3763 gtk_text_layout_validate_yrange (priv->layout,
3766 priv->first_para_pixels +
3767 SCREEN_HEIGHT (widget));
3770 priv->onscreen_validated = TRUE;
3772 DV(g_print(">Done validating onscreen, onscreen_validated = TRUE ("G_STRLOC")\n"));
3774 /* This can have the odd side effect of triggering a scroll, which should
3775 * flip "onscreen_validated" back to FALSE, but should also get us
3776 * back into this function to turn it on again.
3778 gtk_text_view_update_adjustments (text_view);
3780 g_assert (priv->onscreen_validated);
3784 gtk_text_view_flush_first_validate (GtkTextView *text_view)
3786 GtkTextViewPrivate *priv = text_view->priv;
3788 if (priv->first_validate_idle == 0)
3791 /* Do this first, which means that if an "invalidate"
3792 * occurs during any of this process, a new first_validate_callback
3793 * will be installed, and we'll start again.
3795 DV (g_print ("removing first validate in %s\n", G_STRLOC));
3796 g_source_remove (priv->first_validate_idle);
3797 priv->first_validate_idle = 0;
3799 /* be sure we have up-to-date screen size set on the
3802 gtk_text_view_update_layout_width (text_view);
3804 /* Bail out if we invalidated stuff; scrolling right away will just
3805 * confuse the issue.
3807 if (priv->first_validate_idle != 0)
3809 DV(g_print(">Width change forced requeue ("G_STRLOC")\n"));
3813 /* scroll to any marks, if that's pending. This can jump us to
3814 * the validation codepath used for scrolling onscreen, if so we
3815 * bail out. It won't jump if already in that codepath since
3816 * value_changed is not recursive, so also validate if
3819 if (!gtk_text_view_flush_scroll (text_view) ||
3820 !priv->onscreen_validated)
3821 gtk_text_view_validate_onscreen (text_view);
3823 DV(g_print(">Leaving first validate idle ("G_STRLOC")\n"));
3825 g_assert (priv->onscreen_validated);
3830 first_validate_callback (gpointer data)
3832 GtkTextView *text_view = data;
3834 /* Note that some of this code is duplicated at the end of size_allocate,
3835 * keep in sync with that.
3838 DV(g_print(G_STRLOC"\n"));
3840 gtk_text_view_flush_first_validate (text_view);
3846 incremental_validate_callback (gpointer data)
3848 GtkTextView *text_view = data;
3849 gboolean result = TRUE;
3851 DV(g_print(G_STRLOC"\n"));
3853 gtk_text_layout_validate (text_view->priv->layout, 2000);
3855 gtk_text_view_update_adjustments (text_view);
3857 if (gtk_text_layout_is_valid (text_view->priv->layout))
3859 text_view->priv->incremental_validate_idle = 0;
3867 gtk_text_view_invalidate (GtkTextView *text_view)
3869 GtkTextViewPrivate *priv = text_view->priv;
3871 DV (g_print (">Invalidate, onscreen_validated = %d now FALSE ("G_STRLOC")\n",
3872 priv->onscreen_validated));
3874 priv->onscreen_validated = FALSE;
3876 /* We'll invalidate when the layout is created */
3877 if (priv->layout == NULL)
3880 if (!priv->first_validate_idle)
3882 priv->first_validate_idle = gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
3883 DV (g_print (G_STRLOC": adding first validate idle %d\n",
3884 priv->first_validate_idle));
3887 if (!priv->incremental_validate_idle)
3889 priv->incremental_validate_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
3890 DV (g_print (G_STRLOC": adding incremental validate idle %d\n",
3891 priv->incremental_validate_idle));
3896 invalidated_handler (GtkTextLayout *layout,
3899 GtkTextView *text_view;
3901 text_view = GTK_TEXT_VIEW (data);
3903 DV (g_print ("Invalidating due to layout invalidate signal\n"));
3904 gtk_text_view_invalidate (text_view);
3908 changed_handler (GtkTextLayout *layout,
3914 GtkTextView *text_view;
3915 GtkTextViewPrivate *priv;
3917 GdkRectangle visible_rect;
3918 GdkRectangle redraw_rect;
3920 text_view = GTK_TEXT_VIEW (data);
3921 priv = text_view->priv;
3922 widget = GTK_WIDGET (data);
3924 DV(g_print(">Lines Validated ("G_STRLOC")\n"));
3926 if (gtk_widget_get_realized (widget))
3928 gtk_text_view_get_visible_rect (text_view, &visible_rect);
3930 redraw_rect.x = visible_rect.x;
3931 redraw_rect.width = visible_rect.width;
3932 redraw_rect.y = start_y;
3934 if (old_height == new_height)
3935 redraw_rect.height = old_height;
3936 else if (start_y + old_height > visible_rect.y)
3937 redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y);
3939 redraw_rect.height = 0;
3941 if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect))
3943 /* text_window_invalidate_rect() takes buffer coordinates */
3944 text_window_invalidate_rect (priv->text_window,
3947 DV(g_print(" invalidated rect: %d,%d %d x %d\n",
3951 redraw_rect.height));
3953 if (priv->left_window)
3954 text_window_invalidate_rect (priv->left_window,
3956 if (priv->right_window)
3957 text_window_invalidate_rect (priv->right_window,
3959 if (priv->top_window)
3960 text_window_invalidate_rect (priv->top_window,
3962 if (priv->bottom_window)
3963 text_window_invalidate_rect (priv->bottom_window,
3966 queue_update_im_spot_location (text_view);
3970 if (old_height != new_height)
3973 int new_first_para_top;
3974 int old_first_para_top;
3977 /* If the bottom of the old area was above the top of the
3978 * screen, we need to scroll to keep the current top of the
3979 * screen in place. Remember that first_para_pixels is the
3980 * position of the top of the screen in coordinates relative to
3981 * the first paragraph onscreen.
3983 * In short we are adding the height delta of the portion of the
3984 * changed region above first_para_mark to priv->yoffset.
3986 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first,
3987 priv->first_para_mark);
3989 gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL);
3991 old_first_para_top = priv->yoffset - priv->first_para_pixels;
3993 if (new_first_para_top != old_first_para_top)
3995 priv->yoffset += new_first_para_top - old_first_para_top;
3997 gtk_adjustment_set_value (text_view->priv->vadjustment, priv->yoffset);
4000 /* FIXME be smarter about which anchored widgets we update */
4002 tmp_list = priv->children;
4003 while (tmp_list != NULL)
4005 GtkTextViewChild *child = tmp_list->data;
4008 gtk_text_view_update_child_allocation (text_view, child);
4010 tmp_list = g_slist_next (tmp_list);
4015 GtkRequisition old_req = priv->cached_size_request;
4016 GtkRequisition new_req;
4018 /* Use this instead of gtk_widget_size_request wrapper
4019 * to avoid the optimization which just returns widget->requisition
4020 * if a resize hasn't been queued.
4022 gtk_text_view_size_request (widget, &new_req);
4024 if (old_req.width != new_req.width ||
4025 old_req.height != new_req.height)
4027 gtk_widget_queue_resize_no_redraw (widget);
4033 gtk_text_view_realize (GtkWidget *widget)
4035 GtkAllocation allocation;
4036 GtkTextView *text_view;
4037 GtkTextViewPrivate *priv;
4038 GtkStyleContext *context;
4040 GdkWindowAttr attributes;
4041 gint attributes_mask;
4044 text_view = GTK_TEXT_VIEW (widget);
4045 priv = text_view->priv;
4047 gtk_widget_set_realized (widget, TRUE);
4049 gtk_widget_get_allocation (widget, &allocation);
4051 attributes.window_type = GDK_WINDOW_CHILD;
4052 attributes.x = allocation.x;
4053 attributes.y = allocation.y;
4054 attributes.width = allocation.width;
4055 attributes.height = allocation.height;
4056 attributes.wclass = GDK_INPUT_OUTPUT;
4057 attributes.visual = gtk_widget_get_visual (widget);
4058 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK;
4060 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
4062 window = gdk_window_new (gtk_widget_get_parent_window (widget),
4063 &attributes, attributes_mask);
4064 gtk_widget_set_window (widget, window);
4065 gdk_window_set_user_data (window, widget);
4067 context = gtk_widget_get_style_context (widget);
4069 gtk_style_context_save (context);
4070 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
4071 gtk_style_context_set_background (context, window);
4072 gtk_style_context_restore (context);
4074 text_window_realize (priv->text_window, widget);
4076 if (priv->left_window)
4077 text_window_realize (priv->left_window, widget);
4079 if (priv->top_window)
4080 text_window_realize (priv->top_window, widget);
4082 if (priv->right_window)
4083 text_window_realize (priv->right_window, widget);
4085 if (priv->bottom_window)
4086 text_window_realize (priv->bottom_window, widget);
4088 gtk_text_view_ensure_layout (text_view);
4089 gtk_text_view_invalidate (text_view);
4093 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
4094 GDK_SELECTION_PRIMARY);
4095 gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard);
4098 tmp_list = priv->children;
4099 while (tmp_list != NULL)
4101 GtkTextViewChild *vc = tmp_list->data;
4103 text_view_child_set_parent_window (text_view, vc);
4105 tmp_list = tmp_list->next;
4108 /* Ensure updating the spot location. */
4109 gtk_text_view_update_im_spot_location (text_view);
4113 gtk_text_view_unrealize (GtkWidget *widget)
4115 GtkTextView *text_view;
4116 GtkTextViewPrivate *priv;
4118 text_view = GTK_TEXT_VIEW (widget);
4119 priv = text_view->priv;
4123 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
4124 GDK_SELECTION_PRIMARY);
4125 gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard);
4128 gtk_text_view_remove_validate_idles (text_view);
4130 if (priv->popup_menu)
4132 gtk_widget_destroy (priv->popup_menu);
4133 priv->popup_menu = NULL;
4136 text_window_unrealize (priv->text_window);
4138 if (priv->left_window)
4139 text_window_unrealize (priv->left_window);
4141 if (priv->top_window)
4142 text_window_unrealize (priv->top_window);
4144 if (priv->right_window)
4145 text_window_unrealize (priv->right_window);
4147 if (priv->bottom_window)
4148 text_window_unrealize (priv->bottom_window);
4150 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->unrealize (widget);
4154 gtk_text_view_set_background (GtkTextView *text_view)
4156 GtkStyleContext *context;
4157 GtkStateFlags state;
4159 GtkTextViewPrivate *priv;
4162 widget = GTK_WIDGET (text_view);
4163 priv = text_view->priv;
4165 context = gtk_widget_get_style_context (widget);
4166 state = gtk_widget_get_state_flags (widget);
4168 /* Set bin window background */
4169 gtk_style_context_save (context);
4170 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
4172 gtk_style_context_set_background (context, priv->text_window->bin_window);
4173 gtk_style_context_set_background (context, gtk_widget_get_window (widget));
4175 gtk_style_context_restore (context);
4177 /* Set lateral panes background */
4178 gtk_style_context_get_background_color (context, state, &color);
4180 if (priv->left_window)
4181 gdk_window_set_background_rgba (priv->left_window->bin_window, &color);
4183 if (priv->right_window)
4184 gdk_window_set_background_rgba (priv->right_window->bin_window, &color);
4186 if (priv->top_window)
4187 gdk_window_set_background_rgba (priv->top_window->bin_window, &color);
4189 if (priv->bottom_window)
4190 gdk_window_set_background_rgba (priv->bottom_window->bin_window, &color);
4194 gtk_text_view_style_updated (GtkWidget *widget)
4196 GtkTextView *text_view;
4197 GtkTextViewPrivate *priv;
4198 PangoContext *ltr_context, *rtl_context;
4200 text_view = GTK_TEXT_VIEW (widget);
4201 priv = text_view->priv;
4203 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->style_updated (widget);
4205 if (gtk_widget_get_realized (widget))
4207 gtk_text_view_set_background (text_view);
4210 if (priv->layout && priv->layout->default_style)
4212 gtk_text_view_set_attributes_from_style (text_view,
4213 priv->layout->default_style);
4215 ltr_context = gtk_widget_create_pango_context (widget);
4216 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
4217 rtl_context = gtk_widget_create_pango_context (widget);
4218 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
4220 gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context);
4222 g_object_unref (ltr_context);
4223 g_object_unref (rtl_context);
4228 gtk_text_view_direction_changed (GtkWidget *widget,
4229 GtkTextDirection previous_direction)
4231 GtkTextViewPrivate *priv = GTK_TEXT_VIEW (widget)->priv;
4233 if (priv->layout && priv->layout->default_style)
4235 priv->layout->default_style->direction = gtk_widget_get_direction (widget);
4237 gtk_text_layout_default_style_changed (priv->layout);
4242 gtk_text_view_state_flags_changed (GtkWidget *widget,
4243 GtkStateFlags previous_state)
4245 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
4248 if (gtk_widget_get_realized (widget))
4250 gtk_text_view_set_background (text_view);
4252 if (gtk_widget_is_sensitive (widget))
4253 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), GDK_XTERM);
4257 gdk_window_set_cursor (text_view->priv->text_window->bin_window, cursor);
4260 g_object_unref (cursor);
4262 text_view->priv->mouse_cursor_obscured = FALSE;
4265 if (!gtk_widget_is_sensitive (widget))
4267 /* Clear any selection */
4268 gtk_text_view_unselect (text_view);
4271 gtk_widget_queue_draw (widget);
4275 set_invisible_cursor (GdkWindow *window)
4277 GdkDisplay *display;
4280 display = gdk_window_get_display (window);
4281 cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR);
4283 gdk_window_set_cursor (window, cursor);
4285 g_object_unref (cursor);
4289 gtk_text_view_obscure_mouse_cursor (GtkTextView *text_view)
4291 if (text_view->priv->mouse_cursor_obscured)
4294 set_invisible_cursor (text_view->priv->text_window->bin_window);
4296 text_view->priv->mouse_cursor_obscured = TRUE;
4300 gtk_text_view_unobscure_mouse_cursor (GtkTextView *text_view)
4302 if (text_view->priv->mouse_cursor_obscured)
4306 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)),
4308 gdk_window_set_cursor (text_view->priv->text_window->bin_window, cursor);
4309 g_object_unref (cursor);
4310 text_view->priv->mouse_cursor_obscured = FALSE;
4315 gtk_text_view_grab_notify (GtkWidget *widget,
4316 gboolean was_grabbed)
4318 GtkTextViewPrivate *priv;
4320 priv = GTK_TEXT_VIEW (widget)->priv;
4322 if (priv->grab_device &&
4323 gtk_widget_device_is_shadowed (widget, priv->grab_device))
4325 if (priv->drag_start_x >= 0)
4327 priv->drag_start_x = -1;
4328 priv->drag_start_y = -1;
4331 gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget));
4332 gtk_text_view_unobscure_mouse_cursor (GTK_TEXT_VIEW (widget));
4333 priv->grab_device = NULL;
4343 get_event_coordinates (GdkEvent *event, gint *x, gint *y)
4346 switch (event->type)
4348 case GDK_MOTION_NOTIFY:
4349 *x = event->motion.x;
4350 *y = event->motion.y;
4354 case GDK_BUTTON_PRESS:
4355 case GDK_2BUTTON_PRESS:
4356 case GDK_3BUTTON_PRESS:
4357 case GDK_BUTTON_RELEASE:
4358 *x = event->button.x;
4359 *y = event->button.y;
4364 case GDK_KEY_RELEASE:
4365 case GDK_ENTER_NOTIFY:
4366 case GDK_LEAVE_NOTIFY:
4367 case GDK_PROPERTY_NOTIFY:
4368 case GDK_SELECTION_CLEAR:
4369 case GDK_SELECTION_REQUEST:
4370 case GDK_SELECTION_NOTIFY:
4371 case GDK_PROXIMITY_IN:
4372 case GDK_PROXIMITY_OUT:
4373 case GDK_DRAG_ENTER:
4374 case GDK_DRAG_LEAVE:
4375 case GDK_DRAG_MOTION:
4376 case GDK_DRAG_STATUS:
4377 case GDK_DROP_START:
4378 case GDK_DROP_FINISHED:
4388 emit_event_on_tags (GtkWidget *widget,
4394 gboolean retval = FALSE;
4396 tags = gtk_text_iter_get_tags (iter);
4401 GtkTextTag *tag = tmp->data;
4403 if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter))
4409 tmp = g_slist_next (tmp);
4412 g_slist_free (tags);
4418 gtk_text_view_event (GtkWidget *widget, GdkEvent *event)
4420 GtkTextView *text_view;
4421 GtkTextViewPrivate *priv;
4424 text_view = GTK_TEXT_VIEW (widget);
4425 priv = text_view->priv;
4427 if (priv->layout == NULL ||
4428 get_buffer (text_view) == NULL)
4431 if (event->any.window != priv->text_window->bin_window)
4434 if (get_event_coordinates (event, &x, &y))
4441 /* FIXME this is slow and we do it twice per event.
4442 * My favorite solution is to have GtkTextLayout cache
4443 * the last couple lookups.
4445 gtk_text_layout_get_iter_at_pixel (priv->layout,
4449 return emit_event_on_tags (widget, event, &iter);
4451 else if (event->type == GDK_KEY_PRESS ||
4452 event->type == GDK_KEY_RELEASE)
4456 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter,
4457 gtk_text_buffer_get_insert (get_buffer (text_view)));
4459 return emit_event_on_tags (widget, event, &iter);
4466 gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
4468 GtkTextView *text_view;
4469 GtkTextViewPrivate *priv;
4470 GtkTextMark *insert;
4472 gboolean can_insert;
4473 gboolean retval = FALSE;
4474 gboolean obscure = FALSE;
4476 text_view = GTK_TEXT_VIEW (widget);
4477 priv = text_view->priv;
4479 if (priv->layout == NULL ||
4480 get_buffer (text_view) == NULL)
4483 /* Make sure input method knows where it is */
4484 flush_update_im_spot_location (text_view);
4486 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
4487 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
4488 can_insert = gtk_text_iter_can_insert (&iter, priv->editable);
4489 if (gtk_im_context_filter_keypress (priv->im_context, event))
4491 priv->need_im_reset = TRUE;
4493 gtk_text_view_reset_im_context (text_view);
4494 obscure = can_insert;
4498 else if (GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_press_event (widget, event))
4502 /* use overall editability not can_insert, more predictable for users */
4503 else if (priv->editable &&
4504 (event->keyval == GDK_KEY_Return ||
4505 event->keyval == GDK_KEY_ISO_Enter ||
4506 event->keyval == GDK_KEY_KP_Enter))
4508 /* this won't actually insert the newline if the cursor isn't
4511 gtk_text_view_reset_im_context (text_view);
4512 gtk_text_view_commit_text (text_view, "\n");
4517 /* Pass through Tab as literal tab, unless Control is held down */
4518 else if ((event->keyval == GDK_KEY_Tab ||
4519 event->keyval == GDK_KEY_KP_Tab ||
4520 event->keyval == GDK_KEY_ISO_Left_Tab) &&
4521 !(event->state & GDK_CONTROL_MASK))
4523 /* If the text widget isn't editable overall, or if the application
4524 * has turned off "accepts_tab", move the focus instead
4526 if (priv->accepts_tab && priv->editable)
4528 gtk_text_view_reset_im_context (text_view);
4529 gtk_text_view_commit_text (text_view, "\t");
4533 g_signal_emit_by_name (text_view, "move-focus",
4534 (event->state & GDK_SHIFT_MASK) ?
4535 GTK_DIR_TAB_BACKWARD : GTK_DIR_TAB_FORWARD);
4543 gtk_text_view_obscure_mouse_cursor (text_view);
4545 gtk_text_view_reset_blink_time (text_view);
4546 gtk_text_view_pend_cursor_blink (text_view);
4552 gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
4554 GtkTextView *text_view;
4555 GtkTextViewPrivate *priv;
4556 GtkTextMark *insert;
4559 text_view = GTK_TEXT_VIEW (widget);
4560 priv = text_view->priv;
4562 if (priv->layout == NULL || get_buffer (text_view) == NULL)
4565 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
4566 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
4567 if (gtk_text_iter_can_insert (&iter, priv->editable) &&
4568 gtk_im_context_filter_keypress (priv->im_context, event))
4570 priv->need_im_reset = TRUE;
4574 return GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_release_event (widget, event);
4578 gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
4580 GtkTextView *text_view;
4581 GtkTextViewPrivate *priv;
4583 text_view = GTK_TEXT_VIEW (widget);
4584 priv = text_view->priv;
4586 gtk_widget_grab_focus (widget);
4588 if (event->window != priv->text_window->bin_window)
4590 /* Remove selection if any. */
4591 gtk_text_view_unselect (text_view);
4595 gtk_text_view_reset_blink_time (text_view);
4599 if (event->button == GDK_BUTTON_SECONDARY && (event->state & GDK_CONTROL_MASK) != 0)
4600 _gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer);
4601 else if (event->button == GDK_BUTTON_SECONDARY)
4602 gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout);
4605 if (event->type == GDK_BUTTON_PRESS)
4607 gtk_text_view_reset_im_context (text_view);
4609 if (gdk_event_triggers_context_menu ((GdkEvent *) event))
4611 gtk_text_view_do_popup (text_view, event);
4614 else if (event->button == GDK_BUTTON_PRIMARY)
4616 /* If we're in the selection, start a drag copy/move of the
4617 * selection; otherwise, start creating a new selection.
4620 GtkTextIter start, end;
4622 gtk_text_layout_get_iter_at_pixel (priv->layout,
4624 event->x + priv->xoffset,
4625 event->y + priv->yoffset);
4627 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
4629 gtk_text_iter_in_range (&iter, &start, &end) &&
4631 gtk_widget_get_modifier_mask (widget,
4632 GDK_MODIFIER_INTENT_EXTEND_SELECTION)))
4634 priv->grab_device = event->device;
4635 priv->drag_start_x = event->x;
4636 priv->drag_start_y = event->y;
4637 priv->pending_place_cursor_button = event->button;
4641 gtk_text_view_start_selection_drag (text_view, &iter, event);
4646 else if (event->button == GDK_BUTTON_MIDDLE &&
4647 get_middle_click_paste (text_view))
4651 /* We do not want to scroll back to the insert iter when we paste
4652 with the middle button */
4653 priv->scroll_after_paste = FALSE;
4655 gtk_text_layout_get_iter_at_pixel (priv->layout,
4657 event->x + priv->xoffset,
4658 event->y + priv->yoffset);
4660 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
4661 gtk_widget_get_clipboard (widget, GDK_SELECTION_PRIMARY),
4667 else if ((event->type == GDK_2BUTTON_PRESS ||
4668 event->type == GDK_3BUTTON_PRESS) &&
4669 event->button == GDK_BUTTON_PRIMARY)
4673 gtk_text_view_end_selection_drag (text_view);
4675 gtk_text_layout_get_iter_at_pixel (priv->layout,
4677 event->x + priv->xoffset,
4678 event->y + priv->yoffset);
4680 gtk_text_view_start_selection_drag (text_view, &iter, event);
4688 gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
4690 GtkTextView *text_view;
4691 GtkTextViewPrivate *priv;
4693 text_view = GTK_TEXT_VIEW (widget);
4694 priv = text_view->priv;
4696 if (event->window != priv->text_window->bin_window)
4699 if (event->button == GDK_BUTTON_PRIMARY)
4701 if (priv->drag_start_x >= 0)
4703 priv->drag_start_x = -1;
4704 priv->drag_start_y = -1;
4707 if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget)))
4709 else if (priv->pending_place_cursor_button == event->button)
4713 /* Unselect everything; we clicked inside selection, but
4714 * didn't move by the drag threshold, so just clear selection
4717 gtk_text_layout_get_iter_at_pixel (priv->layout,
4719 event->x + priv->xoffset,
4720 event->y + priv->yoffset);
4722 gtk_text_buffer_place_cursor (get_buffer (text_view), &iter);
4723 gtk_text_view_check_cursor_blink (text_view);
4725 priv->pending_place_cursor_button = 0;
4735 keymap_direction_changed (GdkKeymap *keymap,
4736 GtkTextView *text_view)
4738 gtk_text_view_check_keymap_direction (text_view);
4742 gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
4744 GtkTextView *text_view;
4745 GtkTextViewPrivate *priv;
4747 text_view = GTK_TEXT_VIEW (widget);
4748 priv = text_view->priv;
4750 gtk_widget_queue_draw (widget);
4752 DV(g_print (G_STRLOC": focus_in_event\n"));
4754 gtk_text_view_reset_blink_time (text_view);
4756 if (priv->cursor_visible && priv->layout)
4758 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
4759 gtk_text_view_check_cursor_blink (text_view);
4762 g_signal_connect (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4763 "direction-changed",
4764 G_CALLBACK (keymap_direction_changed), text_view);
4765 gtk_text_view_check_keymap_direction (text_view);
4769 priv->need_im_reset = TRUE;
4770 gtk_im_context_focus_in (priv->im_context);
4777 gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event)
4779 GtkTextView *text_view;
4780 GtkTextViewPrivate *priv;
4782 text_view = GTK_TEXT_VIEW (widget);
4783 priv = text_view->priv;
4785 gtk_text_view_end_selection_drag (text_view);
4787 gtk_widget_queue_draw (widget);
4789 DV(g_print (G_STRLOC": focus_out_event\n"));
4791 if (priv->cursor_visible && priv->layout)
4793 gtk_text_view_check_cursor_blink (text_view);
4794 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
4797 g_signal_handlers_disconnect_by_func (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4798 keymap_direction_changed,
4803 priv->need_im_reset = TRUE;
4804 gtk_im_context_focus_out (priv->im_context);
4811 gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event)
4813 GtkTextView *text_view;
4814 GtkTextViewPrivate *priv;
4816 text_view = GTK_TEXT_VIEW (widget);
4817 priv = text_view->priv;
4819 gtk_text_view_unobscure_mouse_cursor (text_view);
4821 if (event->window == priv->text_window->bin_window &&
4822 priv->drag_start_x >= 0)
4827 gdk_event_request_motions (event);
4829 if (gtk_drag_check_threshold (widget,
4835 gint buffer_x, buffer_y;
4837 gtk_text_view_window_to_buffer_coords (text_view,
4838 GTK_TEXT_WINDOW_TEXT,
4844 gtk_text_layout_get_iter_at_pixel (priv->layout,
4846 buffer_x, buffer_y);
4848 gtk_text_view_start_selection_dnd (text_view, &iter, event);
4857 gtk_text_view_paint (GtkWidget *widget,
4860 GtkTextView *text_view;
4861 GtkTextViewPrivate *priv;
4863 text_view = GTK_TEXT_VIEW (widget);
4864 priv = text_view->priv;
4866 g_return_if_fail (priv->layout != NULL);
4867 g_return_if_fail (priv->xoffset >= 0);
4868 g_return_if_fail (priv->yoffset >= 0);
4870 while (priv->first_validate_idle != 0)
4872 DV (g_print (G_STRLOC": first_validate_idle: %d\n",
4873 priv->first_validate_idle));
4874 gtk_text_view_flush_first_validate (text_view);
4877 if (!priv->onscreen_validated)
4879 g_warning (G_STRLOC ": somehow some text lines were modified or scrolling occurred since the last validation of lines on the screen - may be a text widget bug.");
4880 g_assert_not_reached ();
4884 printf ("painting %d,%d %d x %d\n",
4886 area->width, area->height);
4890 cairo_translate (cr, -priv->xoffset, -priv->yoffset);
4892 gtk_text_layout_draw (priv->layout,
4901 gtk_text_view_draw (GtkWidget *widget,
4907 if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget)))
4908 gtk_text_view_draw_focus (widget, cr);
4910 window = gtk_text_view_get_window (GTK_TEXT_VIEW (widget),
4911 GTK_TEXT_WINDOW_TEXT);
4912 if (gtk_cairo_should_draw_window (cr, window))
4914 DV(g_print (">Exposed ("G_STRLOC")\n"));
4916 gtk_cairo_transform_to_window (cr, widget, window);
4917 gtk_text_view_paint (widget, cr);
4921 /* Propagate exposes to all unanchored children.
4922 * Anchored children are handled in gtk_text_view_paint().
4924 tmp_list = GTK_TEXT_VIEW (widget)->priv->children;
4925 while (tmp_list != NULL)
4927 GtkTextViewChild *vc = tmp_list->data;
4929 /* propagate_draw checks that event->window matches
4932 gtk_container_propagate_draw (GTK_CONTAINER (widget),
4936 tmp_list = tmp_list->next;
4943 gtk_text_view_draw_focus (GtkWidget *widget,
4946 gboolean interior_focus;
4948 /* We clear the focus if we are in interior focus mode. */
4949 gtk_widget_style_get (widget,
4950 "interior-focus", &interior_focus,
4953 if (gtk_widget_has_visible_focus (widget) && !interior_focus)
4955 GtkStyleContext *context;
4957 context = gtk_widget_get_style_context (widget);
4959 gtk_render_focus (context, cr, 0, 0,
4960 gtk_widget_get_allocated_width (widget),
4961 gtk_widget_get_allocated_height (widget));
4966 gtk_text_view_focus (GtkWidget *widget,
4967 GtkDirectionType direction)
4969 GtkContainer *container;
4972 container = GTK_CONTAINER (widget);
4974 if (!gtk_widget_is_focus (widget) &&
4975 gtk_container_get_focus_child (container) == NULL)
4977 gtk_widget_grab_focus (widget);
4983 * Unset CAN_FOCUS flag so that gtk_container_focus() allows
4984 * children to get the focus
4986 gtk_widget_set_can_focus (widget, FALSE);
4987 result = GTK_WIDGET_CLASS (gtk_text_view_parent_class)->focus (widget, direction);
4988 gtk_widget_set_can_focus (widget, TRUE);
4999 gtk_text_view_add (GtkContainer *container,
5002 /* This is pretty random. */
5003 gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container),
5005 GTK_TEXT_WINDOW_WIDGET,
5010 gtk_text_view_remove (GtkContainer *container,
5013 GtkTextView *text_view;
5014 GtkTextViewPrivate *priv;
5015 GtkTextViewChild *vc;
5018 text_view = GTK_TEXT_VIEW (container);
5019 priv = text_view->priv;
5022 iter = priv->children;
5024 while (iter != NULL)
5028 if (vc->widget == child)
5031 iter = g_slist_next (iter);
5034 g_assert (iter != NULL); /* be sure we had the child in the list */
5036 priv->children = g_slist_remove (priv->children, vc);
5038 gtk_widget_unparent (vc->widget);
5040 text_view_child_free (vc);
5044 gtk_text_view_forall (GtkContainer *container,
5045 gboolean include_internals,
5046 GtkCallback callback,
5047 gpointer callback_data)
5050 GtkTextView *text_view;
5053 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
5054 g_return_if_fail (callback != NULL);
5056 text_view = GTK_TEXT_VIEW (container);
5058 copy = g_slist_copy (text_view->priv->children);
5061 while (iter != NULL)
5063 GtkTextViewChild *vc = iter->data;
5065 (* callback) (vc->widget, callback_data);
5067 iter = g_slist_next (iter);
5070 g_slist_free (copy);
5073 #define CURSOR_ON_MULTIPLIER 2
5074 #define CURSOR_OFF_MULTIPLIER 1
5075 #define CURSOR_PEND_MULTIPLIER 3
5076 #define CURSOR_DIVIDER 3
5079 cursor_blinks (GtkTextView *text_view)
5081 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5084 #ifdef DEBUG_VALIDATION_AND_SCROLLING
5087 if (gtk_get_debug_flags () & GTK_DEBUG_UPDATES)
5090 g_object_get (settings, "gtk-cursor-blink", &blink, NULL);
5095 if (text_view->priv->editable)
5097 GtkTextMark *insert;
5100 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
5101 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
5103 if (gtk_text_iter_editable (&iter, text_view->priv->editable))
5111 get_middle_click_paste (GtkTextView *text_view)
5113 GtkSettings *settings;
5116 settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5117 g_object_get (settings, "gtk-enable-primary-paste", &paste, NULL);
5123 get_cursor_time (GtkTextView *text_view)
5125 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5128 g_object_get (settings, "gtk-cursor-blink-time", &time, NULL);
5134 get_cursor_blink_timeout (GtkTextView *text_view)
5136 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5139 g_object_get (settings, "gtk-cursor-blink-timeout", &time, NULL);
5150 blink_cb (gpointer data)
5152 GtkTextView *text_view;
5153 GtkTextViewPrivate *priv;
5157 text_view = GTK_TEXT_VIEW (data);
5158 priv = text_view->priv;
5160 if (!gtk_widget_has_focus (GTK_WIDGET (text_view)))
5162 g_warning ("GtkTextView - did not receive focus-out-event. If you\n"
5163 "connect a handler to this signal, it must return\n"
5164 "FALSE so the text view gets the event as well");
5166 gtk_text_view_check_cursor_blink (text_view);
5171 g_assert (priv->layout);
5172 g_assert (priv->cursor_visible);
5174 visible = gtk_text_layout_get_cursor_visible (priv->layout);
5176 blink_timeout = get_cursor_blink_timeout (text_view);
5177 if (priv->blink_time > 1000 * blink_timeout &&
5178 blink_timeout < G_MAXINT/1000)
5180 /* we've blinked enough without the user doing anything, stop blinking */
5182 priv->blink_timeout = 0;
5185 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
5190 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER / CURSOR_DIVIDER,
5193 priv->blink_time += get_cursor_time (text_view);
5196 /* Block changed_handler while changing the layout's cursor visibility
5197 * because it would expose the whole paragraph. Instead, we expose
5198 * the cursor's area(s) manually below.
5200 g_signal_handlers_block_by_func (priv->layout,
5203 gtk_text_layout_set_cursor_visible (priv->layout, !visible);
5204 g_signal_handlers_unblock_by_func (priv->layout,
5208 text_window_invalidate_cursors (priv->text_window);
5210 /* Remove ourselves */
5216 gtk_text_view_stop_cursor_blink (GtkTextView *text_view)
5218 if (text_view->priv->blink_timeout)
5220 g_source_remove (text_view->priv->blink_timeout);
5221 text_view->priv->blink_timeout = 0;
5226 gtk_text_view_check_cursor_blink (GtkTextView *text_view)
5228 GtkTextViewPrivate *priv = text_view->priv;
5230 if (priv->layout != NULL &&
5231 priv->cursor_visible &&
5232 gtk_widget_has_focus (GTK_WIDGET (text_view)))
5234 if (cursor_blinks (text_view))
5236 if (priv->blink_timeout == 0)
5238 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5240 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
5247 gtk_text_view_stop_cursor_blink (text_view);
5248 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5253 gtk_text_view_stop_cursor_blink (text_view);
5254 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
5259 gtk_text_view_pend_cursor_blink (GtkTextView *text_view)
5261 GtkTextViewPrivate *priv = text_view->priv;
5263 if (priv->layout != NULL &&
5264 priv->cursor_visible &&
5265 gtk_widget_has_focus (GTK_WIDGET (text_view)) &&
5266 cursor_blinks (text_view))
5268 gtk_text_view_stop_cursor_blink (text_view);
5269 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5271 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER / CURSOR_DIVIDER,
5278 gtk_text_view_reset_blink_time (GtkTextView *text_view)
5280 GtkTextViewPrivate *priv = text_view->priv;
5282 priv->blink_time = 0;
5287 * Key binding handlers
5291 gtk_text_view_move_iter_by_lines (GtkTextView *text_view,
5292 GtkTextIter *newplace,
5295 gboolean ret = TRUE;
5299 ret = gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, newplace);
5305 ret = gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, newplace);
5313 move_cursor (GtkTextView *text_view,
5314 const GtkTextIter *new_location,
5315 gboolean extend_selection)
5317 if (extend_selection)
5318 gtk_text_buffer_move_mark_by_name (get_buffer (text_view),
5322 gtk_text_buffer_place_cursor (get_buffer (text_view),
5324 gtk_text_view_check_cursor_blink (text_view);
5328 gtk_text_view_move_cursor_internal (GtkTextView *text_view,
5329 GtkMovementStep step,
5331 gboolean extend_selection)
5333 GtkTextViewPrivate *priv;
5335 GtkTextIter newplace;
5336 gboolean cancel_selection = FALSE;
5337 gint cursor_x_pos = 0;
5338 GtkDirectionType leave_direction = -1;
5340 priv = text_view->priv;
5342 if (!priv->cursor_visible)
5344 GtkScrollStep scroll_step;
5345 gdouble old_xpos, old_ypos;
5349 case GTK_MOVEMENT_VISUAL_POSITIONS:
5350 leave_direction = count > 0 ? GTK_DIR_RIGHT : GTK_DIR_LEFT;
5352 case GTK_MOVEMENT_LOGICAL_POSITIONS:
5353 case GTK_MOVEMENT_WORDS:
5354 scroll_step = GTK_SCROLL_HORIZONTAL_STEPS;
5356 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
5357 scroll_step = GTK_SCROLL_HORIZONTAL_ENDS;
5359 case GTK_MOVEMENT_DISPLAY_LINES:
5360 leave_direction = count > 0 ? GTK_DIR_DOWN : GTK_DIR_UP;
5362 case GTK_MOVEMENT_PARAGRAPHS:
5363 case GTK_MOVEMENT_PARAGRAPH_ENDS:
5364 scroll_step = GTK_SCROLL_STEPS;
5366 case GTK_MOVEMENT_PAGES:
5367 scroll_step = GTK_SCROLL_PAGES;
5369 case GTK_MOVEMENT_HORIZONTAL_PAGES:
5370 scroll_step = GTK_SCROLL_HORIZONTAL_PAGES;
5372 case GTK_MOVEMENT_BUFFER_ENDS:
5373 scroll_step = GTK_SCROLL_ENDS;
5376 scroll_step = GTK_SCROLL_PAGES;
5380 old_xpos = priv->xoffset;
5381 old_ypos = priv->yoffset;
5382 gtk_text_view_move_viewport (text_view, scroll_step, count);
5383 if ((old_xpos == priv->xoffset && old_ypos == priv->yoffset) &&
5384 leave_direction != -1 &&
5385 !gtk_widget_keynav_failed (GTK_WIDGET (text_view),
5388 g_signal_emit_by_name (text_view, "move-focus", leave_direction);
5394 gtk_text_view_reset_im_context (text_view);
5396 if (step == GTK_MOVEMENT_PAGES)
5398 if (!gtk_text_view_scroll_pages (text_view, count, extend_selection))
5399 gtk_widget_error_bell (GTK_WIDGET (text_view));
5401 gtk_text_view_check_cursor_blink (text_view);
5402 gtk_text_view_pend_cursor_blink (text_view);
5405 else if (step == GTK_MOVEMENT_HORIZONTAL_PAGES)
5407 if (!gtk_text_view_scroll_hpages (text_view, count, extend_selection))
5408 gtk_widget_error_bell (GTK_WIDGET (text_view));
5410 gtk_text_view_check_cursor_blink (text_view);
5411 gtk_text_view_pend_cursor_blink (text_view);
5415 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5416 gtk_text_buffer_get_insert (get_buffer (text_view)));
5418 if (! extend_selection)
5420 GtkTextIter sel_bound;
5422 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &sel_bound,
5423 gtk_text_buffer_get_selection_bound (get_buffer (text_view)));
5425 /* if we move forward, assume the cursor is at the end of the selection;
5426 * if we move backward, assume the cursor is at the start
5429 gtk_text_iter_order (&sel_bound, &insert);
5431 gtk_text_iter_order (&insert, &sel_bound);
5433 /* if we actually have a selection, just move *to* the beginning/end
5434 * of the selection and not *from* there on LOGICAL_POSITIONS
5435 * and VISUAL_POSITIONS movement
5437 if (! gtk_text_iter_equal (&sel_bound, &insert))
5438 cancel_selection = TRUE;
5443 if (step == GTK_MOVEMENT_DISPLAY_LINES)
5444 gtk_text_view_get_virtual_cursor_pos (text_view, &insert, &cursor_x_pos, NULL);
5448 case GTK_MOVEMENT_LOGICAL_POSITIONS:
5449 if (! cancel_selection)
5450 gtk_text_iter_forward_visible_cursor_positions (&newplace, count);
5453 case GTK_MOVEMENT_VISUAL_POSITIONS:
5454 if (! cancel_selection)
5455 gtk_text_layout_move_iter_visually (priv->layout,
5459 case GTK_MOVEMENT_WORDS:
5461 gtk_text_iter_backward_visible_word_starts (&newplace, -count);
5464 if (!gtk_text_iter_forward_visible_word_ends (&newplace, count))
5465 gtk_text_iter_forward_to_line_end (&newplace);
5469 case GTK_MOVEMENT_DISPLAY_LINES:
5472 leave_direction = GTK_DIR_UP;
5474 if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
5475 gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos);
5477 gtk_text_iter_set_line_offset (&newplace, 0);
5481 leave_direction = GTK_DIR_DOWN;
5483 if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
5484 gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos);
5486 gtk_text_iter_forward_to_line_end (&newplace);
5490 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
5492 gtk_text_view_move_iter_by_lines (text_view, &newplace, --count);
5493 else if (count < -1)
5494 gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count);
5497 gtk_text_layout_move_iter_to_line_end (priv->layout, &newplace, count);
5500 case GTK_MOVEMENT_PARAGRAPHS:
5503 if (!gtk_text_iter_ends_line (&newplace))
5505 gtk_text_iter_forward_to_line_end (&newplace);
5508 gtk_text_iter_forward_visible_lines (&newplace, count);
5509 gtk_text_iter_forward_to_line_end (&newplace);
5513 if (gtk_text_iter_get_line_offset (&newplace) > 0)
5514 gtk_text_iter_set_line_offset (&newplace, 0);
5515 gtk_text_iter_forward_visible_lines (&newplace, count);
5516 gtk_text_iter_set_line_offset (&newplace, 0);
5520 case GTK_MOVEMENT_PARAGRAPH_ENDS:
5523 if (!gtk_text_iter_ends_line (&newplace))
5524 gtk_text_iter_forward_to_line_end (&newplace);
5528 gtk_text_iter_set_line_offset (&newplace, 0);
5532 case GTK_MOVEMENT_BUFFER_ENDS:
5534 gtk_text_buffer_get_end_iter (get_buffer (text_view), &newplace);
5536 gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0);
5543 /* call move_cursor() even if the cursor hasn't moved, since it
5544 cancels the selection
5546 move_cursor (text_view, &newplace, extend_selection);
5548 if (!gtk_text_iter_equal (&insert, &newplace))
5550 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5551 gtk_text_view_scroll_mark_onscreen (text_view,
5552 gtk_text_buffer_get_insert (get_buffer (text_view)));
5554 if (step == GTK_MOVEMENT_DISPLAY_LINES)
5555 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
5557 else if (leave_direction != -1)
5559 if (!gtk_widget_keynav_failed (GTK_WIDGET (text_view),
5562 g_signal_emit_by_name (text_view, "move-focus", leave_direction);
5565 else if (! cancel_selection)
5567 gtk_widget_error_bell (GTK_WIDGET (text_view));
5570 gtk_text_view_check_cursor_blink (text_view);
5571 gtk_text_view_pend_cursor_blink (text_view);
5575 gtk_text_view_move_cursor (GtkTextView *text_view,
5576 GtkMovementStep step,
5578 gboolean extend_selection)
5580 gtk_text_view_move_cursor_internal (text_view, step, count, extend_selection);
5584 gtk_text_view_move_viewport (GtkTextView *text_view,
5588 GtkAdjustment *adjustment;
5593 case GTK_SCROLL_STEPS:
5594 case GTK_SCROLL_PAGES:
5595 case GTK_SCROLL_ENDS:
5596 adjustment = text_view->priv->vadjustment;
5598 case GTK_SCROLL_HORIZONTAL_STEPS:
5599 case GTK_SCROLL_HORIZONTAL_PAGES:
5600 case GTK_SCROLL_HORIZONTAL_ENDS:
5601 adjustment = text_view->priv->hadjustment;
5604 adjustment = text_view->priv->vadjustment;
5610 case GTK_SCROLL_STEPS:
5611 case GTK_SCROLL_HORIZONTAL_STEPS:
5612 increment = gtk_adjustment_get_step_increment (adjustment);
5614 case GTK_SCROLL_PAGES:
5615 case GTK_SCROLL_HORIZONTAL_PAGES:
5616 increment = gtk_adjustment_get_page_increment (adjustment);
5618 case GTK_SCROLL_ENDS:
5619 case GTK_SCROLL_HORIZONTAL_ENDS:
5620 increment = gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_lower (adjustment);
5627 gtk_adjustment_set_value (adjustment, gtk_adjustment_get_value (adjustment) + count * increment);
5631 gtk_text_view_set_anchor (GtkTextView *text_view)
5635 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5636 gtk_text_buffer_get_insert (get_buffer (text_view)));
5638 gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
5642 gtk_text_view_scroll_pages (GtkTextView *text_view,
5644 gboolean extend_selection)
5646 GtkTextViewPrivate *priv;
5647 GtkAdjustment *adjustment;
5648 gint cursor_x_pos, cursor_y_pos;
5649 GtkTextMark *insert_mark;
5650 GtkTextIter old_insert;
5651 GtkTextIter new_insert;
5657 priv = text_view->priv;
5659 g_return_val_if_fail (priv->vadjustment != NULL, FALSE);
5661 adjustment = priv->vadjustment;
5663 insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view));
5665 /* Make sure we start from the current cursor position, even
5666 * if it was offscreen, but don't queue more scrolls if we're
5669 if (priv->pending_scroll)
5670 cancel_pending_scroll (text_view);
5672 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5674 /* Validate the region that will be brought into view by the cursor motion
5676 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5677 &old_insert, insert_mark);
5681 gtk_text_view_get_first_para_iter (text_view, &anchor);
5682 y0 = gtk_adjustment_get_page_size (adjustment);
5683 y1 = gtk_adjustment_get_page_size (adjustment) + count * gtk_adjustment_get_page_increment (adjustment);
5687 gtk_text_view_get_first_para_iter (text_view, &anchor);
5688 y0 = count * gtk_adjustment_get_page_increment (adjustment) + gtk_adjustment_get_page_size (adjustment);
5692 gtk_text_layout_validate_yrange (priv->layout, &anchor, y0, y1);
5693 /* FIXME do we need to update the adjustment ranges here? */
5695 new_insert = old_insert;
5697 if (count < 0 && gtk_adjustment_get_value (adjustment) <= (gtk_adjustment_get_lower (adjustment) + 1e-12))
5699 /* already at top, just be sure we are at offset 0 */
5700 gtk_text_buffer_get_start_iter (get_buffer (text_view), &new_insert);
5701 move_cursor (text_view, &new_insert, extend_selection);
5703 else if (count > 0 && gtk_adjustment_get_value (adjustment) >= (gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment) - 1e-12))
5705 /* already at bottom, just be sure we are at the end */
5706 gtk_text_buffer_get_end_iter (get_buffer (text_view), &new_insert);
5707 move_cursor (text_view, &new_insert, extend_selection);
5711 gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos);
5713 oldval = gtk_adjustment_get_value (adjustment);
5714 newval = gtk_adjustment_get_value (adjustment);
5716 newval += count * gtk_adjustment_get_page_increment (adjustment);
5718 gtk_adjustment_set_value (adjustment, newval);
5719 cursor_y_pos += gtk_adjustment_get_value (adjustment) - oldval;
5721 gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos);
5722 clamp_iter_onscreen (text_view, &new_insert);
5723 move_cursor (text_view, &new_insert, extend_selection);
5725 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
5728 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
5729 * only guarantees 1 pixel onscreen.
5731 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5732 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5734 return !gtk_text_iter_equal (&old_insert, &new_insert);
5738 gtk_text_view_scroll_hpages (GtkTextView *text_view,
5740 gboolean extend_selection)
5742 GtkTextViewPrivate *priv;
5743 GtkAdjustment *adjustment;
5744 gint cursor_x_pos, cursor_y_pos;
5745 GtkTextMark *insert_mark;
5746 GtkTextIter old_insert;
5747 GtkTextIter new_insert;
5752 priv = text_view->priv;
5754 g_return_val_if_fail (priv->hadjustment != NULL, FALSE);
5756 adjustment = priv->hadjustment;
5758 insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view));
5760 /* Make sure we start from the current cursor position, even
5761 * if it was offscreen, but don't queue more scrolls if we're
5764 if (priv->pending_scroll)
5765 cancel_pending_scroll (text_view);
5767 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5769 /* Validate the line that we're moving within.
5771 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5772 &old_insert, insert_mark);
5774 gtk_text_layout_get_line_yrange (priv->layout, &old_insert, &y, &height);
5775 gtk_text_layout_validate_yrange (priv->layout, &old_insert, y, y + height);
5776 /* FIXME do we need to update the adjustment ranges here? */
5778 new_insert = old_insert;
5780 if (count < 0 && gtk_adjustment_get_value (adjustment) <= (gtk_adjustment_get_lower (adjustment) + 1e-12))
5782 /* already at far left, just be sure we are at offset 0 */
5783 gtk_text_iter_set_line_offset (&new_insert, 0);
5784 move_cursor (text_view, &new_insert, extend_selection);
5786 else if (count > 0 && gtk_adjustment_get_value (adjustment) >= (gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment) - 1e-12))
5788 /* already at far right, just be sure we are at the end */
5789 if (!gtk_text_iter_ends_line (&new_insert))
5790 gtk_text_iter_forward_to_line_end (&new_insert);
5791 move_cursor (text_view, &new_insert, extend_selection);
5795 gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos);
5797 oldval = gtk_adjustment_get_value (adjustment);
5798 newval = gtk_adjustment_get_value (adjustment);
5800 newval += count * gtk_adjustment_get_page_increment (adjustment);
5802 gtk_adjustment_set_value (adjustment, newval);
5803 cursor_x_pos += gtk_adjustment_get_value (adjustment) - oldval;
5805 gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos);
5806 clamp_iter_onscreen (text_view, &new_insert);
5807 move_cursor (text_view, &new_insert, extend_selection);
5809 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
5812 /* FIXME for lines shorter than the overall widget width, this results in a
5813 * "bounce" effect as we scroll to the right of the widget, then scroll
5814 * back to get the end of the line onscreen.
5815 * http://bugzilla.gnome.org/show_bug.cgi?id=68963
5818 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
5819 * only guarantees 1 pixel onscreen.
5821 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5822 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5824 return !gtk_text_iter_equal (&old_insert, &new_insert);
5828 whitespace (gunichar ch, gpointer user_data)
5830 return (ch == ' ' || ch == '\t');
5834 not_whitespace (gunichar ch, gpointer user_data)
5836 return !whitespace (ch, user_data);
5840 find_whitepace_region (const GtkTextIter *center,
5841 GtkTextIter *start, GtkTextIter *end)
5846 if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL))
5847 gtk_text_iter_forward_char (start); /* we want the first whitespace... */
5848 if (whitespace (gtk_text_iter_get_char (end), NULL))
5849 gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL);
5851 return !gtk_text_iter_equal (start, end);
5855 gtk_text_view_insert_at_cursor (GtkTextView *text_view,
5858 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
5859 text_view->priv->editable))
5861 gtk_widget_error_bell (GTK_WIDGET (text_view));
5866 gtk_text_view_delete_from_cursor (GtkTextView *text_view,
5870 GtkTextViewPrivate *priv;
5874 gboolean leave_one = FALSE;
5876 priv = text_view->priv;
5878 gtk_text_view_reset_im_context (text_view);
5880 if (type == GTK_DELETE_CHARS)
5882 /* Char delete deletes the selection, if one exists */
5883 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5888 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5889 gtk_text_buffer_get_insert (get_buffer (text_view)));
5896 case GTK_DELETE_CHARS:
5897 gtk_text_iter_forward_cursor_positions (&end, count);
5900 case GTK_DELETE_WORD_ENDS:
5902 gtk_text_iter_forward_word_ends (&end, count);
5904 gtk_text_iter_backward_word_starts (&start, 0 - count);
5907 case GTK_DELETE_WORDS:
5910 case GTK_DELETE_DISPLAY_LINE_ENDS:
5913 case GTK_DELETE_DISPLAY_LINES:
5916 case GTK_DELETE_PARAGRAPH_ENDS:
5919 /* If we're already at a newline, we need to
5920 * simply delete that newline, instead of
5921 * moving to the next one.
5923 if (gtk_text_iter_ends_line (&end))
5925 gtk_text_iter_forward_line (&end);
5931 if (!gtk_text_iter_forward_to_line_end (&end))
5939 if (gtk_text_iter_starts_line (&start))
5941 gtk_text_iter_backward_line (&start);
5942 if (!gtk_text_iter_ends_line (&end))
5943 gtk_text_iter_forward_to_line_end (&start);
5947 gtk_text_iter_set_line_offset (&start, 0);
5951 gtk_text_iter_backward_lines (&start, -count);
5955 case GTK_DELETE_PARAGRAPHS:
5958 gtk_text_iter_set_line_offset (&start, 0);
5959 gtk_text_iter_forward_to_line_end (&end);
5961 /* Do the lines beyond the first. */
5964 gtk_text_iter_forward_to_line_end (&end);
5970 /* FIXME negative count? */
5974 case GTK_DELETE_WHITESPACE:
5976 find_whitepace_region (&insert, &start, &end);
5984 if (!gtk_text_iter_equal (&start, &end))
5986 gtk_text_buffer_begin_user_action (get_buffer (text_view));
5988 if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end,
5992 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view),
5998 gtk_widget_error_bell (GTK_WIDGET (text_view));
6001 gtk_text_buffer_end_user_action (get_buffer (text_view));
6002 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
6004 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6005 gtk_text_view_scroll_mark_onscreen (text_view,
6006 gtk_text_buffer_get_insert (get_buffer (text_view)));
6010 gtk_widget_error_bell (GTK_WIDGET (text_view));
6015 gtk_text_view_backspace (GtkTextView *text_view)
6017 GtkTextViewPrivate *priv;
6020 priv = text_view->priv;
6022 gtk_text_view_reset_im_context (text_view);
6024 /* Backspace deletes the selection, if one exists */
6025 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
6029 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
6031 gtk_text_buffer_get_insert (get_buffer (text_view)));
6033 if (gtk_text_buffer_backspace (get_buffer (text_view), &insert,
6034 TRUE, priv->editable))
6036 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
6037 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6038 gtk_text_view_scroll_mark_onscreen (text_view,
6039 gtk_text_buffer_get_insert (get_buffer (text_view)));
6043 gtk_widget_error_bell (GTK_WIDGET (text_view));
6048 gtk_text_view_cut_clipboard (GtkTextView *text_view)
6050 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6051 GDK_SELECTION_CLIPBOARD);
6053 gtk_text_buffer_cut_clipboard (get_buffer (text_view),
6055 text_view->priv->editable);
6056 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6057 gtk_text_view_scroll_mark_onscreen (text_view,
6058 gtk_text_buffer_get_insert (get_buffer (text_view)));
6062 gtk_text_view_copy_clipboard (GtkTextView *text_view)
6064 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6065 GDK_SELECTION_CLIPBOARD);
6067 gtk_text_buffer_copy_clipboard (get_buffer (text_view),
6070 /* on copy do not scroll, we are already onscreen */
6074 gtk_text_view_paste_clipboard (GtkTextView *text_view)
6076 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6077 GDK_SELECTION_CLIPBOARD);
6079 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
6082 text_view->priv->editable);
6086 gtk_text_view_paste_done_handler (GtkTextBuffer *buffer,
6087 GtkClipboard *clipboard,
6090 GtkTextView *text_view = data;
6091 GtkTextViewPrivate *priv;
6093 priv = text_view->priv;
6095 if (priv->scroll_after_paste)
6097 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6098 gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (buffer));
6101 priv->scroll_after_paste = TRUE;
6105 gtk_text_view_toggle_overwrite (GtkTextView *text_view)
6107 GtkTextViewPrivate *priv = text_view->priv;
6109 if (priv->text_window)
6110 text_window_invalidate_cursors (priv->text_window);
6112 priv->overwrite_mode = !priv->overwrite_mode;
6115 gtk_text_layout_set_overwrite_mode (priv->layout,
6116 priv->overwrite_mode && priv->editable);
6118 if (priv->text_window)
6119 text_window_invalidate_cursors (priv->text_window);
6121 gtk_text_view_pend_cursor_blink (text_view);
6123 g_object_notify (G_OBJECT (text_view), "overwrite");
6127 * gtk_text_view_get_overwrite:
6128 * @text_view: a #GtkTextView
6130 * Returns whether the #GtkTextView is in overwrite mode or not.
6132 * Return value: whether @text_view is in overwrite mode or not.
6137 gtk_text_view_get_overwrite (GtkTextView *text_view)
6139 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6141 return text_view->priv->overwrite_mode;
6145 * gtk_text_view_set_overwrite:
6146 * @text_view: a #GtkTextView
6147 * @overwrite: %TRUE to turn on overwrite mode, %FALSE to turn it off
6149 * Changes the #GtkTextView overwrite mode.
6154 gtk_text_view_set_overwrite (GtkTextView *text_view,
6157 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6158 overwrite = overwrite != FALSE;
6160 if (text_view->priv->overwrite_mode != overwrite)
6161 gtk_text_view_toggle_overwrite (text_view);
6165 * gtk_text_view_set_accepts_tab:
6166 * @text_view: A #GtkTextView
6167 * @accepts_tab: %TRUE if pressing the Tab key should insert a tab
6168 * character, %FALSE, if pressing the Tab key should move the
6171 * Sets the behavior of the text widget when the Tab key is pressed.
6172 * If @accepts_tab is %TRUE, a tab character is inserted. If @accepts_tab
6173 * is %FALSE the keyboard focus is moved to the next widget in the focus
6179 gtk_text_view_set_accepts_tab (GtkTextView *text_view,
6180 gboolean accepts_tab)
6182 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6184 accepts_tab = accepts_tab != FALSE;
6186 if (text_view->priv->accepts_tab != accepts_tab)
6188 text_view->priv->accepts_tab = accepts_tab;
6190 g_object_notify (G_OBJECT (text_view), "accepts-tab");
6195 * gtk_text_view_get_accepts_tab:
6196 * @text_view: A #GtkTextView
6198 * Returns whether pressing the Tab key inserts a tab characters.
6199 * gtk_text_view_set_accepts_tab().
6201 * Return value: %TRUE if pressing the Tab key inserts a tab character,
6202 * %FALSE if pressing the Tab key moves the keyboard focus.
6207 gtk_text_view_get_accepts_tab (GtkTextView *text_view)
6209 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6211 return text_view->priv->accepts_tab;
6219 gtk_text_view_unselect (GtkTextView *text_view)
6223 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
6224 gtk_text_buffer_get_insert (get_buffer (text_view)));
6226 gtk_text_buffer_move_mark (get_buffer (text_view),
6227 gtk_text_buffer_get_selection_bound (get_buffer (text_view)),
6232 get_iter_at_pointer (GtkTextView *text_view,
6238 GtkTextViewPrivate *priv;
6239 gint xcoord, ycoord;
6240 GdkModifierType state;
6242 priv = text_view->priv;
6244 gdk_window_get_device_position (priv->text_window->bin_window,
6245 device, &xcoord, &ycoord, &state);
6247 gtk_text_layout_get_iter_at_pixel (priv->layout,
6249 xcoord + priv->xoffset,
6250 ycoord + priv->yoffset);
6259 move_mark_to_pointer_and_scroll (GtkTextView *text_view,
6260 const gchar *mark_name,
6263 GtkTextIter newplace;
6266 get_iter_at_pointer (text_view, device, &newplace, NULL, NULL);
6268 mark = gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
6270 /* This may invalidate the layout */
6271 DV(g_print (G_STRLOC": move mark\n"));
6273 gtk_text_buffer_move_mark (get_buffer (text_view),
6277 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6278 gtk_text_view_scroll_mark_onscreen (text_view, mark);
6280 DV (g_print ("first validate idle leaving %s is %d\n",
6281 G_STRLOC, text_view->priv->first_validate_idle));
6285 selection_scan_timeout (gpointer data)
6287 GtkTextView *text_view;
6289 text_view = GTK_TEXT_VIEW (data);
6291 gtk_text_view_scroll_mark_onscreen (text_view,
6292 gtk_text_buffer_get_insert (get_buffer (text_view)));
6294 return TRUE; /* remain installed. */
6297 #define UPPER_OFFSET_ANCHOR 0.8
6298 #define LOWER_OFFSET_ANCHOR 0.2
6301 check_scroll (gdouble offset, GtkAdjustment *adjustment)
6303 if ((offset > UPPER_OFFSET_ANCHOR &&
6304 gtk_adjustment_get_value (adjustment) + gtk_adjustment_get_page_size (adjustment) < gtk_adjustment_get_upper (adjustment)) ||
6305 (offset < LOWER_OFFSET_ANCHOR &&
6306 gtk_adjustment_get_value (adjustment) > gtk_adjustment_get_lower (adjustment)))
6313 drag_scan_timeout (gpointer data)
6315 GtkTextView *text_view;
6316 GtkTextViewPrivate *priv;
6317 GtkTextIter newplace;
6319 gdouble pointer_xoffset, pointer_yoffset;
6321 text_view = GTK_TEXT_VIEW (data);
6322 priv = text_view->priv;
6324 get_iter_at_pointer (text_view, priv->dnd_device, &newplace, &x, &y);
6326 gtk_text_buffer_move_mark (get_buffer (text_view),
6330 pointer_xoffset = (gdouble) x / gdk_window_get_width (priv->text_window->bin_window);
6331 pointer_yoffset = (gdouble) y / gdk_window_get_height (priv->text_window->bin_window);
6333 if (check_scroll (pointer_xoffset, priv->hadjustment) ||
6334 check_scroll (pointer_yoffset, priv->vadjustment))
6336 /* do not make offsets surpass lower nor upper anchors, this makes
6337 * scrolling speed relative to the distance of the pointer to the
6338 * anchors when it moves beyond them.
6340 pointer_xoffset = CLAMP (pointer_xoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR);
6341 pointer_yoffset = CLAMP (pointer_yoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR);
6343 gtk_text_view_scroll_to_mark (text_view,
6345 0., TRUE, pointer_xoffset, pointer_yoffset);
6356 } SelectionGranularity;
6359 * Move @start and @end to the boundaries of the selection unit (indicated by
6360 * @granularity) which contained @start initially.
6361 * If the selction unit is SELECT_WORDS and @start is not contained in a word
6362 * the selection is extended to all the white spaces between the end of the
6363 * word preceding @start and the start of the one following.
6366 extend_selection (GtkTextView *text_view,
6367 SelectionGranularity granularity,
6373 if (granularity == SELECT_WORDS)
6375 if (gtk_text_iter_inside_word (start))
6377 if (!gtk_text_iter_starts_word (start))
6378 gtk_text_iter_backward_visible_word_start (start);
6380 if (!gtk_text_iter_ends_word (end))
6382 if (!gtk_text_iter_forward_visible_word_end (end))
6383 gtk_text_iter_forward_to_end (end);
6391 if (gtk_text_iter_backward_visible_word_start (&tmp))
6392 gtk_text_iter_forward_visible_word_end (&tmp);
6394 if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (start))
6397 gtk_text_iter_set_line_offset (start, 0);
6400 if (!gtk_text_iter_forward_visible_word_end (&tmp))
6401 gtk_text_iter_forward_to_end (&tmp);
6403 if (gtk_text_iter_ends_word (&tmp))
6404 gtk_text_iter_backward_visible_word_start (&tmp);
6406 if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (end))
6409 gtk_text_iter_forward_to_line_end (end);
6412 else if (granularity == SELECT_LINES)
6414 if (gtk_text_view_starts_display_line (text_view, start))
6416 /* If on a display line boundary, we assume the user
6417 * clicked off the end of a line and we therefore select
6418 * the line before the boundary.
6420 gtk_text_view_backward_display_line_start (text_view, start);
6424 /* start isn't on the start of a line, so we move it to the
6425 * start, and move end to the end unless it's already there.
6427 gtk_text_view_backward_display_line_start (text_view, start);
6429 if (!gtk_text_view_starts_display_line (text_view, end))
6430 gtk_text_view_forward_display_line_end (text_view, end);
6438 SelectionGranularity granularity;
6439 GtkTextMark *orig_start;
6440 GtkTextMark *orig_end;
6444 selection_data_free (SelectionData *data)
6446 if (data->orig_start != NULL)
6447 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_start),
6449 if (data->orig_end != NULL)
6450 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_end),
6456 selection_motion_event_handler (GtkTextView *text_view,
6457 GdkEventMotion *event,
6458 SelectionData *data)
6460 GtkTextViewPrivate *priv;
6462 priv = text_view->priv;
6463 gdk_event_request_motions (event);
6465 if (priv->grab_device != event->device)
6468 if (data->granularity == SELECT_CHARACTERS)
6470 move_mark_to_pointer_and_scroll (text_view, "insert", event->device);
6474 GtkTextIter cursor, start, end;
6475 GtkTextIter orig_start, orig_end;
6476 GtkTextBuffer *buffer;
6478 buffer = get_buffer (text_view);
6480 gtk_text_buffer_get_iter_at_mark (buffer, &orig_start, data->orig_start);
6481 gtk_text_buffer_get_iter_at_mark (buffer, &orig_end, data->orig_end);
6483 get_iter_at_pointer (text_view, event->device, &cursor, NULL, NULL);
6486 extend_selection (text_view, data->granularity, &start, &end);
6488 /* either the selection extends to the front, or end (or not) */
6489 if (gtk_text_iter_compare (&cursor, &orig_start) < 0)
6490 gtk_text_buffer_select_range (buffer, &start, &orig_end);
6492 gtk_text_buffer_select_range (buffer, &end, &orig_start);
6494 gtk_text_view_scroll_mark_onscreen (text_view,
6495 gtk_text_buffer_get_insert (buffer));
6498 /* If we had to scroll offscreen, insert a timeout to do so
6499 * again. Note that in the timeout, even if the mouse doesn't
6500 * move, due to this scroll xoffset/yoffset will have changed
6501 * and we'll need to scroll again.
6503 if (text_view->priv->scroll_timeout != 0) /* reset on every motion event */
6504 g_source_remove (text_view->priv->scroll_timeout);
6506 text_view->priv->scroll_timeout =
6507 gdk_threads_add_timeout (50, selection_scan_timeout, text_view);
6513 gtk_text_view_start_selection_drag (GtkTextView *text_view,
6514 const GtkTextIter *iter,
6515 GdkEventButton *button)
6517 GtkTextViewPrivate *priv;
6518 GtkTextIter cursor, ins, bound;
6519 GtkTextIter orig_start, orig_end;
6520 GtkTextBuffer *buffer;
6521 SelectionData *data;
6523 if (text_view->priv->selection_drag_handler != 0)
6526 priv = text_view->priv;
6527 data = g_new0 (SelectionData, 1);
6529 if (button->type == GDK_2BUTTON_PRESS)
6530 data->granularity = SELECT_WORDS;
6531 else if (button->type == GDK_3BUTTON_PRESS)
6532 data->granularity = SELECT_LINES;
6534 data->granularity = SELECT_CHARACTERS;
6536 priv->grab_device = button->device;
6537 gtk_device_grab_add (GTK_WIDGET (text_view),
6541 buffer = get_buffer (text_view);
6546 extend_selection (text_view, data->granularity, &ins, &bound);
6551 gtk_widget_get_modifier_mask (GTK_WIDGET (text_view),
6552 GDK_MODIFIER_INTENT_EXTEND_SELECTION))
6554 /* Extend selection */
6555 GtkTextIter old_ins, old_bound;
6556 GtkTextIter old_start, old_end;
6558 gtk_text_buffer_get_iter_at_mark (buffer, &old_ins, gtk_text_buffer_get_insert (buffer));
6559 gtk_text_buffer_get_iter_at_mark (buffer, &old_bound, gtk_text_buffer_get_selection_bound (buffer));
6560 old_start = old_ins;
6561 old_end = old_bound;
6562 gtk_text_iter_order (&old_start, &old_end);
6564 /* move the front cursor, if the mouse is in front of the selection. Should the
6565 * cursor however be inside the selection (this happens on tripple click) then we
6566 * move the side which was last moved (current insert mark) */
6567 if (gtk_text_iter_compare (&cursor, &old_start) <= 0 ||
6568 (gtk_text_iter_compare (&cursor, &old_end) < 0 &&
6569 gtk_text_iter_compare (&old_ins, &old_bound) <= 0))
6572 orig_start = old_end;
6584 gtk_text_buffer_select_range (buffer, &ins, &bound);
6586 gtk_text_iter_order (&orig_start, &orig_end);
6587 data->orig_start = gtk_text_buffer_create_mark (buffer, NULL,
6589 data->orig_end = gtk_text_buffer_create_mark (buffer, NULL,
6591 gtk_text_view_check_cursor_blink (text_view);
6593 text_view->priv->selection_drag_handler = g_signal_connect_data (text_view,
6594 "motion-notify-event",
6595 G_CALLBACK (selection_motion_event_handler),
6597 (GClosureNotify) selection_data_free, 0);
6600 /* returns whether we were really dragging */
6602 gtk_text_view_end_selection_drag (GtkTextView *text_view)
6604 GtkTextViewPrivate *priv;
6606 priv = text_view->priv;
6608 if (!priv->grab_device)
6611 if (priv->selection_drag_handler == 0)
6614 g_signal_handler_disconnect (text_view, priv->selection_drag_handler);
6615 priv->selection_drag_handler = 0;
6617 if (priv->scroll_timeout != 0)
6619 g_source_remove (priv->scroll_timeout);
6620 priv->scroll_timeout = 0;
6623 gtk_device_grab_remove (GTK_WIDGET (text_view),
6625 priv->grab_device = NULL;
6635 gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
6636 GtkTextAttributes *values)
6638 GtkStyleContext *context;
6639 GdkRGBA bg_color, fg_color;
6640 GtkStateFlags state;
6642 context = gtk_widget_get_style_context (GTK_WIDGET (text_view));
6643 state = gtk_widget_get_state_flags (GTK_WIDGET (text_view));
6645 gtk_style_context_save (context);
6646 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
6648 gtk_style_context_get_background_color (context, state, &bg_color);
6649 gtk_style_context_get_color (context, state, &fg_color);
6651 values->appearance.bg_color.red = CLAMP (bg_color.red * 65535. + 0.5, 0, 65535);
6652 values->appearance.bg_color.green = CLAMP (bg_color.green * 65535. + 0.5, 0, 65535);
6653 values->appearance.bg_color.blue = CLAMP (bg_color.blue * 65535. + 0.5, 0, 65535);
6655 values->appearance.fg_color.red = CLAMP (fg_color.red * 65535. + 0.5, 0, 65535);
6656 values->appearance.fg_color.green = CLAMP (fg_color.green * 65535. + 0.5, 0, 65535);
6657 values->appearance.fg_color.blue = CLAMP (fg_color.blue * 65535. + 0.5, 0, 65535);
6660 pango_font_description_free (values->font);
6662 values->font = pango_font_description_copy (gtk_style_context_get_font (context, state));
6664 gtk_style_context_restore (context);
6668 gtk_text_view_check_keymap_direction (GtkTextView *text_view)
6670 GtkTextViewPrivate *priv = text_view->priv;
6674 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
6675 GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)));
6676 GtkTextDirection new_cursor_dir;
6677 GtkTextDirection new_keyboard_dir;
6678 gboolean split_cursor;
6680 g_object_get (settings,
6681 "gtk-split-cursor", &split_cursor,
6684 if (gdk_keymap_get_direction (keymap) == PANGO_DIRECTION_RTL)
6685 new_keyboard_dir = GTK_TEXT_DIR_RTL;
6687 new_keyboard_dir = GTK_TEXT_DIR_LTR;
6690 new_cursor_dir = GTK_TEXT_DIR_NONE;
6692 new_cursor_dir = new_keyboard_dir;
6694 gtk_text_layout_set_cursor_direction (priv->layout, new_cursor_dir);
6695 gtk_text_layout_set_keyboard_direction (priv->layout, new_keyboard_dir);
6700 gtk_text_view_ensure_layout (GtkTextView *text_view)
6703 GtkTextViewPrivate *priv;
6705 widget = GTK_WIDGET (text_view);
6706 priv = text_view->priv;
6708 if (priv->layout == NULL)
6710 GtkTextAttributes *style;
6711 PangoContext *ltr_context, *rtl_context;
6714 DV(g_print(G_STRLOC"\n"));
6716 priv->layout = gtk_text_layout_new ();
6718 g_signal_connect (priv->layout,
6720 G_CALLBACK (invalidated_handler),
6723 g_signal_connect (priv->layout,
6725 G_CALLBACK (changed_handler),
6728 g_signal_connect (priv->layout,
6730 G_CALLBACK (gtk_text_view_child_allocated),
6733 if (get_buffer (text_view))
6734 gtk_text_layout_set_buffer (priv->layout, get_buffer (text_view));
6736 if ((gtk_widget_has_focus (widget) && priv->cursor_visible))
6737 gtk_text_view_pend_cursor_blink (text_view);
6739 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
6741 gtk_text_layout_set_overwrite_mode (priv->layout,
6742 priv->overwrite_mode && priv->editable);
6744 ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
6745 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
6746 rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
6747 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
6749 gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context);
6751 g_object_unref (ltr_context);
6752 g_object_unref (rtl_context);
6754 gtk_text_view_check_keymap_direction (text_view);
6756 style = gtk_text_attributes_new ();
6758 gtk_text_view_set_attributes_from_style (text_view, style);
6760 style->pixels_above_lines = priv->pixels_above_lines;
6761 style->pixels_below_lines = priv->pixels_below_lines;
6762 style->pixels_inside_wrap = priv->pixels_inside_wrap;
6763 style->left_margin = priv->left_margin;
6764 style->right_margin = priv->right_margin;
6765 style->indent = priv->indent;
6766 style->tabs = priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL;
6768 style->wrap_mode = priv->wrap_mode;
6769 style->justification = priv->justify;
6770 style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view));
6772 gtk_text_layout_set_default_style (priv->layout, style);
6774 gtk_text_attributes_unref (style);
6776 /* Set layout for all anchored children */
6778 tmp_list = priv->children;
6779 while (tmp_list != NULL)
6781 GtkTextViewChild *vc = tmp_list->data;
6785 gtk_text_anchored_child_set_layout (vc->widget,
6787 /* vc may now be invalid! */
6790 tmp_list = g_slist_next (tmp_list);
6796 * gtk_text_view_get_default_attributes:
6797 * @text_view: a #GtkTextView
6799 * Obtains a copy of the default text attributes. These are the
6800 * attributes used for text unless a tag overrides them.
6801 * You'd typically pass the default attributes in to
6802 * gtk_text_iter_get_attributes() in order to get the
6803 * attributes in effect at a given text position.
6805 * The return value is a copy owned by the caller of this function,
6806 * and should be freed.
6808 * Return value: a new #GtkTextAttributes
6811 gtk_text_view_get_default_attributes (GtkTextView *text_view)
6813 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
6815 gtk_text_view_ensure_layout (text_view);
6817 return gtk_text_attributes_copy (text_view->priv->layout->default_style);
6821 gtk_text_view_destroy_layout (GtkTextView *text_view)
6823 GtkTextViewPrivate *priv = text_view->priv;
6829 gtk_text_view_remove_validate_idles (text_view);
6831 g_signal_handlers_disconnect_by_func (priv->layout,
6832 invalidated_handler,
6834 g_signal_handlers_disconnect_by_func (priv->layout,
6838 /* Remove layout from all anchored children */
6839 tmp_list = priv->children;
6840 while (tmp_list != NULL)
6842 GtkTextViewChild *vc = tmp_list->data;
6846 gtk_text_anchored_child_set_layout (vc->widget, NULL);
6847 /* vc may now be invalid! */
6850 tmp_list = g_slist_next (tmp_list);
6853 gtk_text_view_stop_cursor_blink (text_view);
6854 gtk_text_view_end_selection_drag (text_view);
6856 g_object_unref (priv->layout);
6857 priv->layout = NULL;
6862 * gtk_text_view_reset_im_context:
6863 * @text_view: a #GtkTextView
6865 * Reset the input method context of the text view if needed.
6867 * This can be necessary in the case where modifying the buffer
6868 * would confuse on-going input method behavior.
6873 gtk_text_view_reset_im_context (GtkTextView *text_view)
6875 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6877 if (text_view->priv->need_im_reset)
6879 text_view->priv->need_im_reset = FALSE;
6880 gtk_im_context_reset (text_view->priv->im_context);
6885 * gtk_text_view_im_context_filter_keypress:
6886 * @text_view: a #GtkTextView
6887 * @event: the key event
6889 * Allow the #GtkTextView input method to internally handle key press
6890 * and release events. If this function returns %TRUE, then no further
6891 * processing should be done for this key event. See
6892 * gtk_im_context_filter_keypress().
6894 * Note that you are expected to call this function from your handler
6895 * when overriding key event handling. This is needed in the case when
6896 * you need to insert your own key handling between the input method
6897 * and the default key event handling of the #GtkTextView.
6901 * gtk_foo_bar_key_press_event (GtkWidget *widget,
6902 * GdkEventKey *event)
6904 * if ((key->keyval == GDK_KEY_Return || key->keyval == GDK_KEY_KP_Enter))
6906 * if (gtk_text_view_im_context_filter_keypress (GTK_TEXT_VIEW (view), event))
6910 * /* Do some stuff */
6912 * return GTK_WIDGET_CLASS (gtk_foo_bar_parent_class)->key_press_event (widget, event);
6916 * Return value: %TRUE if the input method handled the key event.
6921 gtk_text_view_im_context_filter_keypress (GtkTextView *text_view,
6924 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6926 return gtk_im_context_filter_keypress (text_view->priv->im_context, event);
6934 drag_begin_cb (GtkWidget *widget,
6935 GdkDragContext *context,
6938 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
6939 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
6942 cairo_surface_t *surface = NULL;
6944 g_signal_handlers_disconnect_by_func (widget, drag_begin_cb, NULL);
6946 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
6947 surface = _gtk_text_util_create_rich_drag_icon (widget, buffer, &start, &end);
6951 gtk_drag_set_icon_surface (context, surface);
6952 cairo_surface_destroy (surface);
6956 gtk_drag_set_icon_default (context);
6961 gtk_text_view_start_selection_dnd (GtkTextView *text_view,
6962 const GtkTextIter *iter,
6963 GdkEventMotion *event)
6965 GtkTargetList *target_list;
6967 text_view->priv->drag_start_x = -1;
6968 text_view->priv->drag_start_y = -1;
6969 text_view->priv->pending_place_cursor_button = 0;
6971 target_list = gtk_text_buffer_get_copy_target_list (get_buffer (text_view));
6973 g_signal_connect (text_view, "drag-begin",
6974 G_CALLBACK (drag_begin_cb), NULL);
6975 gtk_drag_begin (GTK_WIDGET (text_view), target_list,
6976 GDK_ACTION_COPY | GDK_ACTION_MOVE,
6977 1, (GdkEvent*)event);
6981 gtk_text_view_drag_begin (GtkWidget *widget,
6982 GdkDragContext *context)
6988 gtk_text_view_drag_end (GtkWidget *widget,
6989 GdkDragContext *context)
6994 gtk_text_view_drag_data_get (GtkWidget *widget,
6995 GdkDragContext *context,
6996 GtkSelectionData *selection_data,
7000 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
7001 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
7003 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
7005 gtk_selection_data_set (selection_data,
7006 gdk_atom_intern_static_string ("GTK_TEXT_BUFFER_CONTENTS"),
7011 else if (info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
7018 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
7020 /* Extract the selected text */
7021 str = gtk_text_buffer_serialize (buffer, buffer,
7022 gtk_selection_data_get_target (selection_data),
7029 gtk_selection_data_set (selection_data,
7030 gtk_selection_data_get_target (selection_data),
7032 (guchar *) str, len);
7042 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
7044 /* Extract the selected text */
7045 str = gtk_text_iter_get_visible_text (&start, &end);
7050 gtk_selection_data_set_text (selection_data, str, -1);
7057 gtk_text_view_drag_data_delete (GtkWidget *widget,
7058 GdkDragContext *context)
7060 gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->priv->buffer,
7061 TRUE, GTK_TEXT_VIEW (widget)->priv->editable);
7065 gtk_text_view_drag_leave (GtkWidget *widget,
7066 GdkDragContext *context,
7069 GtkTextView *text_view;
7070 GtkTextViewPrivate *priv;
7072 text_view = GTK_TEXT_VIEW (widget);
7073 priv = text_view->priv;
7075 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7077 if (priv->dnd_device)
7078 priv->dnd_device = NULL;
7080 if (priv->scroll_timeout != 0)
7081 g_source_remove (priv->scroll_timeout);
7083 priv->scroll_timeout = 0;
7087 gtk_text_view_drag_motion (GtkWidget *widget,
7088 GdkDragContext *context,
7093 GtkTextIter newplace;
7094 GtkTextView *text_view;
7095 GtkTextViewPrivate *priv;
7098 GdkRectangle target_rect;
7101 GdkDragAction suggested_action = 0;
7103 text_view = GTK_TEXT_VIEW (widget);
7104 priv = text_view->priv;
7106 target_rect = priv->text_window->allocation;
7108 if (x < target_rect.x ||
7109 y < target_rect.y ||
7110 x > (target_rect.x + target_rect.width) ||
7111 y > (target_rect.y + target_rect.height))
7112 return FALSE; /* outside the text window, allow parent widgets to handle event */
7114 gtk_text_view_window_to_buffer_coords (text_view,
7115 GTK_TEXT_WINDOW_WIDGET,
7119 gtk_text_layout_get_iter_at_pixel (priv->layout,
7123 target = gtk_drag_dest_find_target (widget, context,
7124 gtk_drag_dest_get_target_list (widget));
7126 if (target == GDK_NONE)
7128 /* can't accept any of the offered targets */
7130 else if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
7132 gtk_text_iter_compare (&newplace, &start) >= 0 &&
7133 gtk_text_iter_compare (&newplace, &end) <= 0)
7135 /* We're inside the selection. */
7139 if (gtk_text_iter_can_insert (&newplace, priv->editable))
7141 GtkWidget *source_widget;
7143 suggested_action = gdk_drag_context_get_suggested_action (context);
7145 source_widget = gtk_drag_get_source_widget (context);
7147 if (source_widget == widget)
7149 /* Default to MOVE, unless the user has
7150 * pressed ctrl or alt to affect available actions
7152 if ((gdk_drag_context_get_actions (context) & GDK_ACTION_MOVE) != 0)
7153 suggested_action = GDK_ACTION_MOVE;
7158 /* Can't drop here. */
7162 if (suggested_action != 0)
7164 gtk_text_mark_set_visible (priv->dnd_mark,
7165 priv->cursor_visible);
7167 gdk_drag_status (context, suggested_action, time);
7171 gdk_drag_status (context, 0, time);
7172 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7175 priv->dnd_device = gdk_drag_context_get_device (context);
7177 if (!priv->scroll_timeout)
7178 priv->scroll_timeout =
7179 gdk_threads_add_timeout (100, drag_scan_timeout, text_view);
7181 /* TRUE return means don't propagate the drag motion to parent
7182 * widgets that may also be drop sites.
7188 gtk_text_view_drag_drop (GtkWidget *widget,
7189 GdkDragContext *context,
7194 GtkTextView *text_view;
7195 GtkTextViewPrivate *priv;
7196 GtkTextIter drop_point;
7197 GdkAtom target = GDK_NONE;
7199 text_view = GTK_TEXT_VIEW (widget);
7200 priv = text_view->priv;
7202 if (priv->scroll_timeout != 0)
7203 g_source_remove (priv->scroll_timeout);
7205 priv->scroll_timeout = 0;
7207 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7209 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
7213 if (gtk_text_iter_can_insert (&drop_point, priv->editable))
7214 target = gtk_drag_dest_find_target (widget, context, NULL);
7216 if (target != GDK_NONE)
7217 gtk_drag_get_data (widget, context, target, time);
7219 gtk_drag_finish (context, FALSE, FALSE, time);
7225 insert_text_data (GtkTextView *text_view,
7226 GtkTextIter *drop_point,
7227 GtkSelectionData *selection_data)
7231 str = gtk_selection_data_get_text (selection_data);
7235 if (!gtk_text_buffer_insert_interactive (get_buffer (text_view),
7236 drop_point, (gchar *) str, -1,
7237 text_view->priv->editable))
7239 gtk_widget_error_bell (GTK_WIDGET (text_view));
7247 gtk_text_view_drag_data_received (GtkWidget *widget,
7248 GdkDragContext *context,
7251 GtkSelectionData *selection_data,
7255 GtkTextIter drop_point;
7256 GtkTextView *text_view;
7257 GtkTextViewPrivate *priv;
7258 gboolean success = FALSE;
7259 GtkTextBuffer *buffer = NULL;
7261 text_view = GTK_TEXT_VIEW (widget);
7262 priv = text_view->priv;
7264 if (!priv->dnd_mark)
7267 buffer = get_buffer (text_view);
7269 gtk_text_buffer_get_iter_at_mark (buffer,
7273 if (!gtk_text_iter_can_insert (&drop_point, priv->editable))
7278 gtk_text_buffer_begin_user_action (buffer);
7280 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
7282 GtkTextBuffer *src_buffer = NULL;
7283 GtkTextIter start, end;
7284 gboolean copy_tags = TRUE;
7286 if (gtk_selection_data_get_length (selection_data) != sizeof (src_buffer))
7289 memcpy (&src_buffer, gtk_selection_data_get_data (selection_data), sizeof (src_buffer));
7291 if (src_buffer == NULL)
7294 g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer));
7296 if (gtk_text_buffer_get_tag_table (src_buffer) !=
7297 gtk_text_buffer_get_tag_table (buffer))
7299 /* try to find a suitable rich text target instead */
7303 GdkAtom target = GDK_NONE;
7307 atoms = gtk_text_buffer_get_deserialize_formats (buffer, &n_atoms);
7309 for (list = gdk_drag_context_list_targets (context); list; list = g_list_next (list))
7313 for (i = 0; i < n_atoms; i++)
7314 if (GUINT_TO_POINTER (atoms[i]) == list->data)
7323 if (target != GDK_NONE)
7325 gtk_drag_get_data (widget, context, target, time);
7326 gtk_text_buffer_end_user_action (buffer);
7331 if (gtk_text_buffer_get_selection_bounds (src_buffer,
7336 gtk_text_buffer_insert_range_interactive (buffer,
7345 str = gtk_text_iter_get_visible_text (&start, &end);
7346 gtk_text_buffer_insert_interactive (buffer,
7347 &drop_point, str, -1,
7353 else if (gtk_selection_data_get_length (selection_data) > 0 &&
7354 info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
7357 GError *error = NULL;
7359 retval = gtk_text_buffer_deserialize (buffer, buffer,
7360 gtk_selection_data_get_target (selection_data),
7362 (guint8 *) gtk_selection_data_get_data (selection_data),
7363 gtk_selection_data_get_length (selection_data),
7368 g_warning ("error pasting: %s\n", error->message);
7369 g_clear_error (&error);
7373 insert_text_data (text_view, &drop_point, selection_data);
7376 gtk_drag_finish (context, success,
7377 success && gdk_drag_context_get_selected_action (context) == GDK_ACTION_MOVE,
7382 gtk_text_buffer_get_iter_at_mark (buffer,
7385 gtk_text_buffer_place_cursor (buffer, &drop_point);
7387 gtk_text_buffer_end_user_action (buffer);
7392 * gtk_text_view_get_hadjustment:
7393 * @text_view: a #GtkTextView
7395 * Gets the horizontal-scrolling #GtkAdjustment.
7397 * Returns: (transfer none): pointer to the horizontal #GtkAdjustment
7401 * Deprecated: 3.0: Use gtk_scrollable_get_hadjustment()
7404 gtk_text_view_get_hadjustment (GtkTextView *text_view)
7406 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
7408 return text_view->priv->hadjustment;
7412 gtk_text_view_set_hadjustment (GtkTextView *text_view,
7413 GtkAdjustment *adjustment)
7415 GtkTextViewPrivate *priv = text_view->priv;
7417 if (adjustment && priv->hadjustment == adjustment)
7420 if (priv->hadjustment != NULL)
7422 g_signal_handlers_disconnect_by_func (priv->hadjustment,
7423 gtk_text_view_value_changed,
7425 g_object_unref (priv->hadjustment);
7428 if (adjustment == NULL)
7429 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
7431 g_signal_connect (adjustment, "value-changed",
7432 G_CALLBACK (gtk_text_view_value_changed), text_view);
7433 priv->hadjustment = g_object_ref_sink (adjustment);
7434 gtk_text_view_set_hadjustment_values (text_view);
7436 g_object_notify (G_OBJECT (text_view), "hadjustment");
7440 * gtk_text_view_get_vadjustment:
7441 * @text_view: a #GtkTextView
7443 * Gets the vertical-scrolling #GtkAdjustment.
7445 * Returns: (transfer none): pointer to the vertical #GtkAdjustment
7449 * Deprecated: 3.0: Use gtk_scrollable_get_vadjustment()
7452 gtk_text_view_get_vadjustment (GtkTextView *text_view)
7454 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
7456 return text_view->priv->vadjustment;
7460 gtk_text_view_set_vadjustment (GtkTextView *text_view,
7461 GtkAdjustment *adjustment)
7463 GtkTextViewPrivate *priv = text_view->priv;
7465 if (adjustment && priv->vadjustment == adjustment)
7468 if (priv->vadjustment != NULL)
7470 g_signal_handlers_disconnect_by_func (priv->vadjustment,
7471 gtk_text_view_value_changed,
7473 g_object_unref (priv->vadjustment);
7476 if (adjustment == NULL)
7477 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
7479 g_signal_connect (adjustment, "value-changed",
7480 G_CALLBACK (gtk_text_view_value_changed), text_view);
7481 priv->vadjustment = g_object_ref_sink (adjustment);
7482 gtk_text_view_set_vadjustment_values (text_view);
7484 g_object_notify (G_OBJECT (text_view), "vadjustment");
7488 gtk_text_view_set_hadjustment_values (GtkTextView *text_view)
7490 GtkTextViewPrivate *priv;
7496 priv = text_view->priv;
7498 screen_width = SCREEN_WIDTH (text_view);
7499 old_value = gtk_adjustment_get_value (priv->hadjustment);
7500 new_upper = MAX (screen_width, priv->width);
7502 g_object_set (priv->hadjustment,
7505 "page-size", (gdouble)screen_width,
7506 "step-increment", screen_width * 0.1,
7507 "page-increment", screen_width * 0.9,
7510 new_value = CLAMP (old_value, 0, new_upper - screen_width);
7511 if (new_value != old_value)
7512 gtk_adjustment_set_value (priv->hadjustment, new_value);
7516 gtk_text_view_set_vadjustment_values (GtkTextView *text_view)
7518 GtkTextViewPrivate *priv;
7519 GtkTextIter first_para;
7526 priv = text_view->priv;
7528 screen_height = SCREEN_HEIGHT (text_view);
7529 old_value = gtk_adjustment_get_value (priv->vadjustment);
7530 new_upper = MAX (screen_height, priv->height);
7532 g_object_set (priv->vadjustment,
7535 "page-size", (gdouble)screen_height,
7536 "step-increment", screen_height * 0.1,
7537 "page-increment", screen_height * 0.9,
7540 /* Now adjust the value of the adjustment to keep the cursor at the
7541 * same place in the buffer */
7542 gtk_text_view_ensure_layout (text_view);
7543 gtk_text_view_get_first_para_iter (text_view, &first_para);
7544 gtk_text_layout_get_line_yrange (priv->layout, &first_para, &y, NULL);
7546 y += priv->first_para_pixels;
7548 new_value = CLAMP (y, 0, new_upper - screen_height);
7549 if (new_value != old_value)
7550 gtk_adjustment_set_value (priv->vadjustment, new_value);
7554 /* FIXME this adjust_allocation is a big cut-and-paste from
7555 * GtkCList, needs to be some "official" way to do this
7565 /* The window to which widget->window is relative */
7566 #define ALLOCATION_WINDOW(widget) \
7567 (!gtk_widget_get_has_window (widget) ? \
7568 gtk_widget_get_window (widget) : \
7569 gdk_window_get_parent (gtk_widget_get_window (widget)))
7572 adjust_allocation_recurse (GtkWidget *widget,
7575 GtkAllocation allocation;
7576 ScrollData *scroll_data = data;
7578 /* Need to really size allocate instead of just poking
7579 * into widget->allocation if the widget is not realized.
7580 * FIXME someone figure out why this was.
7582 gtk_widget_get_allocation (widget, &allocation);
7584 if (!gtk_widget_get_realized (widget))
7586 if (gtk_widget_get_visible (widget))
7588 GdkRectangle tmp_rectangle;
7590 tmp_rectangle = allocation;
7591 tmp_rectangle.x += scroll_data->dx;
7592 tmp_rectangle.y += scroll_data->dy;
7594 gtk_widget_size_allocate (widget, &tmp_rectangle);
7599 if (ALLOCATION_WINDOW (widget) == scroll_data->window)
7601 allocation.x += scroll_data->dx;
7602 allocation.y += scroll_data->dy;
7603 gtk_widget_set_allocation (widget, &allocation);
7605 if (GTK_IS_CONTAINER (widget))
7606 gtk_container_forall (GTK_CONTAINER (widget),
7607 adjust_allocation_recurse,
7614 adjust_allocation (GtkWidget *widget,
7618 ScrollData scroll_data;
7620 if (gtk_widget_get_realized (widget))
7621 scroll_data.window = ALLOCATION_WINDOW (widget);
7623 scroll_data.window = NULL;
7625 scroll_data.dx = dx;
7626 scroll_data.dy = dy;
7628 adjust_allocation_recurse (widget, &scroll_data);
7632 gtk_text_view_value_changed (GtkAdjustment *adjustment,
7633 GtkTextView *text_view)
7635 GtkTextViewPrivate *priv;
7641 priv = text_view->priv;
7643 /* Note that we oddly call this function with adjustment == NULL
7647 priv->onscreen_validated = FALSE;
7649 DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n",
7650 adjustment == priv->hadjustment ? "hadjustment" : adjustment == priv->vadjustment ? "vadjustment" : "none",
7651 adjustment ? gtk_adjustment_get_value (adjustment) : 0.0));
7653 if (adjustment == priv->hadjustment)
7655 dx = priv->xoffset - (gint)gtk_adjustment_get_value (adjustment);
7656 priv->xoffset = gtk_adjustment_get_value (adjustment);
7658 /* If the change is due to a size change we need
7659 * to invalidate the entire text window because there might be
7660 * right-aligned or centered text
7662 if (priv->width_changed)
7664 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7665 gdk_window_invalidate_rect (priv->text_window->bin_window, NULL, FALSE);
7667 priv->width_changed = FALSE;
7670 else if (adjustment == priv->vadjustment)
7672 dy = priv->yoffset - (gint)gtk_adjustment_get_value (adjustment);
7673 priv->yoffset = gtk_adjustment_get_value (adjustment);
7677 gtk_text_layout_get_line_at_y (priv->layout, &iter, gtk_adjustment_get_value (adjustment), &line_top);
7679 gtk_text_buffer_move_mark (get_buffer (text_view), priv->first_para_mark, &iter);
7681 priv->first_para_pixels = gtk_adjustment_get_value (adjustment) - line_top;
7685 if (dx != 0 || dy != 0)
7689 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7693 if (priv->left_window)
7694 text_window_scroll (priv->left_window, 0, dy);
7695 if (priv->right_window)
7696 text_window_scroll (priv->right_window, 0, dy);
7701 if (priv->top_window)
7702 text_window_scroll (priv->top_window, dx, 0);
7703 if (priv->bottom_window)
7704 text_window_scroll (priv->bottom_window, dx, 0);
7707 /* It looks nicer to scroll the main area last, because
7708 * it takes a while, and making the side areas update
7709 * afterward emphasizes the slowness of scrolling the
7712 text_window_scroll (priv->text_window, dx, dy);
7715 /* Children are now "moved" in the text window, poke
7716 * into widget->allocation for each child
7718 tmp_list = priv->children;
7719 while (tmp_list != NULL)
7721 GtkTextViewChild *child = tmp_list->data;
7724 adjust_allocation (child->widget, dx, dy);
7726 tmp_list = g_slist_next (tmp_list);
7730 /* This could result in invalidation, which would install the
7731 * first_validate_idle, which would validate onscreen;
7732 * but we're going to go ahead and validate here, so
7733 * first_validate_idle shouldn't have anything to do.
7735 gtk_text_view_update_layout_width (text_view);
7737 /* We also update the IM spot location here, since the IM context
7738 * might do something that leads to validation.
7740 gtk_text_view_update_im_spot_location (text_view);
7742 /* note that validation of onscreen could invoke this function
7743 * recursively, by scrolling to maintain first_para, or in response
7744 * to updating the layout width, however there is no problem with
7745 * that, or shouldn't be.
7747 gtk_text_view_validate_onscreen (text_view);
7749 /* If this got installed, get rid of it, it's just a waste of time. */
7750 if (priv->first_validate_idle != 0)
7752 g_source_remove (priv->first_validate_idle);
7753 priv->first_validate_idle = 0;
7756 /* Finally we update the IM cursor location again, to ensure any
7757 * changes made by the validation are pushed through.
7759 gtk_text_view_update_im_spot_location (text_view);
7761 DV(g_print(">End scroll offset changed handler ("G_STRLOC")\n"));
7765 gtk_text_view_commit_handler (GtkIMContext *context,
7767 GtkTextView *text_view)
7769 gtk_text_view_commit_text (text_view, str);
7773 gtk_text_view_commit_text (GtkTextView *text_view,
7776 GtkTextViewPrivate *priv;
7777 gboolean had_selection;
7779 priv = text_view->priv;
7781 gtk_text_buffer_begin_user_action (get_buffer (text_view));
7783 had_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
7786 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
7789 if (!strcmp (str, "\n"))
7791 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
7794 gtk_widget_error_bell (GTK_WIDGET (text_view));
7799 if (!had_selection && priv->overwrite_mode)
7803 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
7805 gtk_text_buffer_get_insert (get_buffer (text_view)));
7806 if (!gtk_text_iter_ends_line (&insert))
7807 gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
7810 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
7813 gtk_widget_error_bell (GTK_WIDGET (text_view));
7817 gtk_text_buffer_end_user_action (get_buffer (text_view));
7819 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
7820 DV(g_print (G_STRLOC": scrolling onscreen\n"));
7821 gtk_text_view_scroll_mark_onscreen (text_view,
7822 gtk_text_buffer_get_insert (get_buffer (text_view)));
7826 gtk_text_view_preedit_changed_handler (GtkIMContext *context,
7827 GtkTextView *text_view)
7829 GtkTextViewPrivate *priv;
7831 PangoAttrList *attrs;
7835 priv = text_view->priv;
7837 gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter,
7838 gtk_text_buffer_get_insert (priv->buffer));
7840 /* Keypress events are passed to input method even if cursor position is
7841 * not editable; so beep here if it's multi-key input sequence, input
7842 * method will be reset in key-press-event handler.
7844 gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos);
7846 if (str && str[0] && !gtk_text_iter_can_insert (&iter, priv->editable))
7848 gtk_widget_error_bell (GTK_WIDGET (text_view));
7852 g_signal_emit (text_view, signals[PREEDIT_CHANGED], 0, str);
7855 gtk_text_layout_set_preedit_string (priv->layout, str, attrs, cursor_pos);
7856 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
7857 gtk_text_view_scroll_mark_onscreen (text_view,
7858 gtk_text_buffer_get_insert (get_buffer (text_view)));
7861 pango_attr_list_unref (attrs);
7866 gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
7867 GtkTextView *text_view)
7874 gtk_text_buffer_get_iter_at_mark (text_view->priv->buffer, &start,
7875 gtk_text_buffer_get_insert (text_view->priv->buffer));
7878 pos = gtk_text_iter_get_line_index (&start);
7879 gtk_text_iter_set_line_offset (&start, 0);
7880 gtk_text_iter_forward_to_line_end (&end);
7882 text = gtk_text_iter_get_slice (&start, &end);
7883 gtk_im_context_set_surrounding (context, text, -1, pos);
7890 gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
7893 GtkTextView *text_view)
7895 GtkTextViewPrivate *priv;
7899 priv = text_view->priv;
7901 gtk_text_buffer_get_iter_at_mark (priv->buffer, &start,
7902 gtk_text_buffer_get_insert (priv->buffer));
7905 gtk_text_iter_forward_chars (&start, offset);
7906 gtk_text_iter_forward_chars (&end, offset + n_chars);
7908 gtk_text_buffer_delete_interactive (priv->buffer, &start, &end,
7915 gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
7916 const GtkTextIter *location,
7920 GtkTextView *text_view = GTK_TEXT_VIEW (data);
7921 gboolean need_reset = FALSE;
7923 if (mark == gtk_text_buffer_get_insert (buffer))
7925 text_view->priv->virtual_cursor_x = -1;
7926 text_view->priv->virtual_cursor_y = -1;
7927 gtk_text_view_update_im_spot_location (text_view);
7930 else if (mark == gtk_text_buffer_get_selection_bound (buffer))
7936 gtk_text_view_reset_im_context (text_view);
7940 gtk_text_view_target_list_notify (GtkTextBuffer *buffer,
7941 const GParamSpec *pspec,
7944 GtkWidget *widget = GTK_WIDGET (data);
7945 GtkTargetList *view_list;
7946 GtkTargetList *buffer_list;
7949 view_list = gtk_drag_dest_get_target_list (widget);
7950 buffer_list = gtk_text_buffer_get_paste_target_list (buffer);
7953 gtk_target_list_ref (view_list);
7955 view_list = gtk_target_list_new (NULL, 0);
7957 list = view_list->list;
7960 GtkTargetPair *pair = list->data;
7962 list = g_list_next (list); /* get next element before removing */
7964 if (pair->info >= GTK_TEXT_BUFFER_TARGET_INFO_TEXT &&
7965 pair->info <= GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
7967 gtk_target_list_remove (view_list, pair->target);
7971 for (list = buffer_list->list; list; list = g_list_next (list))
7973 GtkTargetPair *pair = list->data;
7975 gtk_target_list_add (view_list, pair->target, pair->flags, pair->info);
7978 gtk_drag_dest_set_target_list (widget, view_list);
7979 gtk_target_list_unref (view_list);
7983 gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
7984 GtkTextIter *cursor,
7988 GtkTextViewPrivate *priv;
7992 priv = text_view->priv;
7997 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
7998 gtk_text_buffer_get_insert (get_buffer (text_view)));
8000 if ((x && priv->virtual_cursor_x == -1) ||
8001 (y && priv->virtual_cursor_y == -1))
8002 gtk_text_layout_get_cursor_locations (priv->layout, &insert, &pos, NULL);
8006 if (priv->virtual_cursor_x != -1)
8007 *x = priv->virtual_cursor_x;
8014 if (priv->virtual_cursor_x != -1)
8015 *y = priv->virtual_cursor_y;
8017 *y = pos.y + pos.height / 2;
8022 gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
8028 if (!text_view->priv->layout)
8031 if (x == -1 || y == -1)
8032 gtk_text_view_get_cursor_locations (text_view, NULL, &pos, NULL);
8034 text_view->priv->virtual_cursor_x = (x == -1) ? pos.x : x;
8035 text_view->priv->virtual_cursor_y = (y == -1) ? pos.y + pos.height / 2 : y;
8038 /* Quick hack of a popup menu
8041 activate_cb (GtkWidget *menuitem,
8042 GtkTextView *text_view)
8044 const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
8045 g_signal_emit_by_name (text_view, signal);
8049 append_action_signal (GtkTextView *text_view,
8051 const gchar *stock_id,
8052 const gchar *signal,
8055 GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
8057 g_object_set_data (G_OBJECT (menuitem), I_("gtk-signal"), (char *)signal);
8058 g_signal_connect (menuitem, "activate",
8059 G_CALLBACK (activate_cb), text_view);
8061 gtk_widget_set_sensitive (menuitem, sensitive);
8063 gtk_widget_show (menuitem);
8064 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
8068 gtk_text_view_select_all (GtkWidget *widget,
8071 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
8072 GtkTextBuffer *buffer;
8073 GtkTextIter start_iter, end_iter, insert;
8075 buffer = text_view->priv->buffer;
8078 gtk_text_buffer_get_bounds (buffer, &start_iter, &end_iter);
8079 gtk_text_buffer_select_range (buffer, &start_iter, &end_iter);
8083 gtk_text_buffer_get_iter_at_mark (buffer, &insert,
8084 gtk_text_buffer_get_insert (buffer));
8085 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &insert);
8090 select_all_cb (GtkWidget *menuitem,
8091 GtkTextView *text_view)
8093 gtk_text_view_select_all (GTK_WIDGET (text_view), TRUE);
8097 delete_cb (GtkTextView *text_view)
8099 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
8100 text_view->priv->editable);
8104 popup_menu_detach (GtkWidget *attach_widget,
8107 GTK_TEXT_VIEW (attach_widget)->priv->popup_menu = NULL;
8111 popup_position_func (GtkMenu *menu,
8117 GtkAllocation allocation;
8118 GtkTextView *text_view;
8120 GdkRectangle cursor_rect;
8121 GdkRectangle onscreen_rect;
8122 gint root_x, root_y;
8127 GdkRectangle monitor;
8129 text_view = GTK_TEXT_VIEW (user_data);
8130 widget = GTK_WIDGET (text_view);
8132 g_return_if_fail (gtk_widget_get_realized (widget));
8134 screen = gtk_widget_get_screen (widget);
8136 gdk_window_get_origin (gtk_widget_get_window (widget),
8139 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
8141 gtk_text_buffer_get_insert (get_buffer (text_view)));
8143 gtk_text_view_get_iter_location (text_view,
8147 gtk_text_view_get_visible_rect (text_view, &onscreen_rect);
8149 gtk_widget_get_preferred_size (text_view->priv->popup_menu,
8152 gtk_widget_get_allocation (widget, &allocation);
8154 /* can't use rectangle_intersect since cursor rect can have 0 width */
8155 if (cursor_rect.x >= onscreen_rect.x &&
8156 cursor_rect.x < onscreen_rect.x + onscreen_rect.width &&
8157 cursor_rect.y >= onscreen_rect.y &&
8158 cursor_rect.y < onscreen_rect.y + onscreen_rect.height)
8160 gtk_text_view_buffer_to_window_coords (text_view,
8161 GTK_TEXT_WINDOW_WIDGET,
8162 cursor_rect.x, cursor_rect.y,
8163 &cursor_rect.x, &cursor_rect.y);
8165 *x = root_x + cursor_rect.x + cursor_rect.width;
8166 *y = root_y + cursor_rect.y + cursor_rect.height;
8170 /* Just center the menu, since cursor is offscreen. */
8171 *x = root_x + (allocation.width / 2 - req.width / 2);
8172 *y = root_y + (allocation.height / 2 - req.height / 2);
8176 *x = CLAMP (*x, root_x, (root_x + allocation.width));
8177 *y = CLAMP (*y, root_y, (root_y + allocation.height));
8179 monitor_num = gdk_screen_get_monitor_at_point (screen, *x, *y);
8180 gtk_menu_set_monitor (menu, monitor_num);
8181 gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor);
8183 *x = CLAMP (*x, monitor.x, monitor.x + MAX (0, monitor.width - req.width));
8184 *y = CLAMP (*y, monitor.y, monitor.y + MAX (0, monitor.height - req.height));
8191 GtkTextView *text_view;
8198 range_contains_editable_text (const GtkTextIter *start,
8199 const GtkTextIter *end,
8200 gboolean default_editability)
8202 GtkTextIter iter = *start;
8204 while (gtk_text_iter_compare (&iter, end) < 0)
8206 if (gtk_text_iter_editable (&iter, default_editability))
8209 gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
8216 unichar_chosen_func (const char *text,
8219 GtkTextView *text_view = GTK_TEXT_VIEW (data);
8221 gtk_text_view_commit_text (text_view, text);
8225 popup_targets_received (GtkClipboard *clipboard,
8226 GtkSelectionData *data,
8229 PopupInfo *info = user_data;
8230 GtkTextView *text_view;
8231 GtkTextViewPrivate *priv;
8233 text_view = info->text_view;
8234 priv = text_view->priv;
8236 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
8238 /* We implicitely rely here on the fact that if we are pasting ourself, we'll
8239 * have text targets as well as the private GTK_TEXT_BUFFER_CONTENTS target.
8241 gboolean clipboard_contains_text;
8242 GtkWidget *menuitem;
8244 gboolean have_selection;
8245 gboolean can_insert;
8247 GtkTextIter sel_start, sel_end;
8248 gboolean show_input_method_menu;
8249 gboolean show_unicode_menu;
8251 clipboard_contains_text = gtk_selection_data_targets_include_text (data);
8253 if (priv->popup_menu)
8254 gtk_widget_destroy (priv->popup_menu);
8256 priv->popup_menu = gtk_menu_new ();
8258 gtk_menu_attach_to_widget (GTK_MENU (priv->popup_menu),
8259 GTK_WIDGET (text_view),
8262 have_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
8263 &sel_start, &sel_end);
8265 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
8267 gtk_text_buffer_get_insert (get_buffer (text_view)));
8269 can_insert = gtk_text_iter_can_insert (&iter, priv->editable);
8271 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_CUT, "cut-clipboard",
8273 range_contains_editable_text (&sel_start, &sel_end,
8275 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_COPY, "copy-clipboard",
8277 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_PASTE, "paste-clipboard",
8278 can_insert && clipboard_contains_text);
8280 menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_DELETE, NULL);
8281 gtk_widget_set_sensitive (menuitem,
8283 range_contains_editable_text (&sel_start, &sel_end,
8285 g_signal_connect_swapped (menuitem, "activate",
8286 G_CALLBACK (delete_cb), text_view);
8287 gtk_widget_show (menuitem);
8288 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8290 menuitem = gtk_separator_menu_item_new ();
8291 gtk_widget_show (menuitem);
8292 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8294 menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_SELECT_ALL, NULL);
8295 gtk_widget_set_sensitive (menuitem,
8296 gtk_text_buffer_get_char_count (priv->buffer) > 0);
8297 g_signal_connect (menuitem, "activate",
8298 G_CALLBACK (select_all_cb), text_view);
8299 gtk_widget_show (menuitem);
8300 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8302 g_object_get (gtk_widget_get_settings (GTK_WIDGET (text_view)),
8303 "gtk-show-input-method-menu", &show_input_method_menu,
8304 "gtk-show-unicode-menu", &show_unicode_menu,
8307 if (show_input_method_menu || show_unicode_menu)
8309 menuitem = gtk_separator_menu_item_new ();
8310 gtk_widget_show (menuitem);
8311 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8314 if (show_input_method_menu)
8316 menuitem = gtk_menu_item_new_with_mnemonic (_("Input _Methods"));
8317 gtk_widget_show (menuitem);
8318 gtk_widget_set_sensitive (menuitem, can_insert);
8320 submenu = gtk_menu_new ();
8321 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
8322 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8324 gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (priv->im_context),
8325 GTK_MENU_SHELL (submenu));
8328 if (show_unicode_menu)
8330 menuitem = gtk_menu_item_new_with_mnemonic (_("_Insert Unicode Control Character"));
8331 gtk_widget_show (menuitem);
8332 gtk_widget_set_sensitive (menuitem, can_insert);
8334 submenu = gtk_menu_new ();
8335 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
8336 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8338 _gtk_text_util_append_special_char_menuitems (GTK_MENU_SHELL (submenu),
8339 unichar_chosen_func,
8343 g_signal_emit (text_view,
8344 signals[POPULATE_POPUP],
8349 gtk_menu_popup_for_device (GTK_MENU (priv->popup_menu),
8350 info->device, NULL, NULL, NULL, NULL, NULL,
8351 info->button, info->time);
8354 gtk_menu_popup (GTK_MENU (priv->popup_menu), NULL, NULL,
8355 popup_position_func, text_view,
8356 0, gtk_get_current_event_time ());
8357 gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->popup_menu), FALSE);
8361 g_object_unref (text_view);
8366 gtk_text_view_do_popup (GtkTextView *text_view,
8367 GdkEventButton *event)
8369 PopupInfo *info = g_new (PopupInfo, 1);
8371 /* In order to know what entries we should make sensitive, we
8372 * ask for the current targets of the clipboard, and when
8373 * we get them, then we actually pop up the menu.
8375 info->text_view = g_object_ref (text_view);
8379 info->button = event->button;
8380 info->time = event->time;
8381 info->device = event->device;
8386 info->time = gtk_get_current_event_time ();
8387 info->device = NULL;
8390 gtk_clipboard_request_contents (gtk_widget_get_clipboard (GTK_WIDGET (text_view),
8391 GDK_SELECTION_CLIPBOARD),
8392 gdk_atom_intern_static_string ("TARGETS"),
8393 popup_targets_received,
8398 gtk_text_view_popup_menu (GtkWidget *widget)
8400 gtk_text_view_do_popup (GTK_TEXT_VIEW (widget), NULL);
8404 /* Child GdkWindows */
8407 static GtkTextWindow*
8408 text_window_new (GtkTextWindowType type,
8411 gint height_request)
8415 win = g_new (GtkTextWindow, 1);
8418 win->widget = widget;
8420 win->bin_window = NULL;
8421 win->requisition.width = width_request;
8422 win->requisition.height = height_request;
8423 win->allocation.width = width_request;
8424 win->allocation.height = height_request;
8425 win->allocation.x = 0;
8426 win->allocation.y = 0;
8432 text_window_free (GtkTextWindow *win)
8435 text_window_unrealize (win);
8441 text_window_realize (GtkTextWindow *win,
8444 GtkStyleContext *context;
8445 GtkStateFlags state;
8447 GdkWindowAttr attributes;
8448 gint attributes_mask;
8452 attributes.window_type = GDK_WINDOW_CHILD;
8453 attributes.x = win->allocation.x;
8454 attributes.y = win->allocation.y;
8455 attributes.width = win->allocation.width;
8456 attributes.height = win->allocation.height;
8457 attributes.wclass = GDK_INPUT_OUTPUT;
8458 attributes.visual = gtk_widget_get_visual (win->widget);
8459 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
8461 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
8463 window = gtk_widget_get_window (widget);
8465 win->window = gdk_window_new (window,
8466 &attributes, attributes_mask);
8468 gdk_window_show (win->window);
8469 gdk_window_set_user_data (win->window, win->widget);
8470 gdk_window_lower (win->window);
8474 attributes.width = win->allocation.width;
8475 attributes.height = win->allocation.height;
8476 attributes.event_mask = (GDK_EXPOSURE_MASK |
8478 GDK_SMOOTH_SCROLL_MASK |
8479 GDK_KEY_PRESS_MASK |
8480 GDK_BUTTON_PRESS_MASK |
8481 GDK_BUTTON_RELEASE_MASK |
8482 GDK_POINTER_MOTION_MASK |
8483 GDK_POINTER_MOTION_HINT_MASK |
8484 gtk_widget_get_events (win->widget));
8486 win->bin_window = gdk_window_new (win->window,
8490 gdk_window_show (win->bin_window);
8491 gdk_window_set_user_data (win->bin_window, win->widget);
8493 context = gtk_widget_get_style_context (widget);
8494 state = gtk_widget_get_state_flags (widget);
8496 if (win->type == GTK_TEXT_WINDOW_TEXT)
8498 if (gtk_widget_is_sensitive (widget))
8501 cursor = gdk_cursor_new_for_display (gdk_window_get_display (window),
8503 gdk_window_set_cursor (win->bin_window, cursor);
8504 g_object_unref (cursor);
8507 gtk_im_context_set_client_window (GTK_TEXT_VIEW (widget)->priv->im_context,
8510 gtk_style_context_save (context);
8511 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
8513 gtk_style_context_get_background_color (context, state, &color);
8514 gdk_window_set_background_rgba (win->bin_window, &color);
8516 gtk_style_context_restore (context);
8520 gtk_style_context_get_background_color (context, state, &color);
8521 gdk_window_set_background_rgba (win->bin_window, &color);
8524 g_object_set_qdata (G_OBJECT (win->window),
8525 g_quark_from_static_string ("gtk-text-view-text-window"),
8528 g_object_set_qdata (G_OBJECT (win->bin_window),
8529 g_quark_from_static_string ("gtk-text-view-text-window"),
8534 text_window_unrealize (GtkTextWindow *win)
8536 if (win->type == GTK_TEXT_WINDOW_TEXT)
8538 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->priv->im_context,
8542 gdk_window_set_user_data (win->window, NULL);
8543 gdk_window_set_user_data (win->bin_window, NULL);
8544 gdk_window_destroy (win->bin_window);
8545 gdk_window_destroy (win->window);
8547 win->bin_window = NULL;
8551 text_window_size_allocate (GtkTextWindow *win,
8554 win->allocation = *rect;
8558 gdk_window_move_resize (win->window,
8560 rect->width, rect->height);
8562 gdk_window_resize (win->bin_window,
8563 rect->width, rect->height);
8568 text_window_scroll (GtkTextWindow *win,
8572 if (dx != 0 || dy != 0)
8574 gdk_window_scroll (win->bin_window, dx, dy);
8579 text_window_invalidate_rect (GtkTextWindow *win,
8582 GdkRectangle window_rect;
8584 gtk_text_view_buffer_to_window_coords (GTK_TEXT_VIEW (win->widget),
8591 window_rect.width = rect->width;
8592 window_rect.height = rect->height;
8594 /* Adjust the rect as appropriate */
8598 case GTK_TEXT_WINDOW_TEXT:
8601 case GTK_TEXT_WINDOW_LEFT:
8602 case GTK_TEXT_WINDOW_RIGHT:
8604 window_rect.width = win->allocation.width;
8607 case GTK_TEXT_WINDOW_TOP:
8608 case GTK_TEXT_WINDOW_BOTTOM:
8610 window_rect.height = win->allocation.height;
8614 g_warning ("%s: bug!", G_STRFUNC);
8619 gdk_window_invalidate_rect (win->bin_window, &window_rect, FALSE);
8623 cairo_t *cr = gdk_cairo_create (win->bin_window);
8624 gdk_cairo_rectangle (cr, &window_rect);
8625 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* red */
8633 text_window_invalidate_cursors (GtkTextWindow *win)
8635 GtkTextView *text_view;
8636 GtkTextViewPrivate *priv;
8638 GdkRectangle strong;
8640 gboolean draw_arrow;
8641 gfloat cursor_aspect_ratio;
8645 text_view = GTK_TEXT_VIEW (win->widget);
8646 priv = text_view->priv;
8648 gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter,
8649 gtk_text_buffer_get_insert (priv->buffer));
8651 if (_gtk_text_layout_get_block_cursor (priv->layout, &strong))
8653 text_window_invalidate_rect (win, &strong);
8657 gtk_text_layout_get_cursor_locations (priv->layout, &iter,
8660 /* cursor width calculation as in gtkstylecontext.c:draw_insertion_cursor(),
8661 * ignoring the text direction be exposing both sides of the cursor
8664 draw_arrow = (strong.x != weak.x || strong.y != weak.y);
8666 gtk_widget_style_get (win->widget,
8667 "cursor-aspect-ratio", &cursor_aspect_ratio,
8670 stem_width = strong.height * cursor_aspect_ratio + 1;
8671 arrow_width = stem_width + 1;
8673 strong.width = stem_width;
8675 /* round up to the next even number */
8679 strong.x -= stem_width / 2;
8680 strong.width += stem_width;
8684 strong.x -= arrow_width;
8685 strong.width += arrow_width * 2;
8688 text_window_invalidate_rect (win, &strong);
8690 if (draw_arrow) /* == have weak */
8692 stem_width = weak.height * cursor_aspect_ratio + 1;
8693 arrow_width = stem_width + 1;
8695 weak.width = stem_width;
8697 /* round up to the next even number */
8701 weak.x -= stem_width / 2;
8702 weak.width += stem_width;
8704 weak.x -= arrow_width;
8705 weak.width += arrow_width * 2;
8707 text_window_invalidate_rect (win, &weak);
8712 text_window_get_width (GtkTextWindow *win)
8714 return win->allocation.width;
8718 text_window_get_height (GtkTextWindow *win)
8720 return win->allocation.height;
8727 * gtk_text_view_get_window:
8728 * @text_view: a #GtkTextView
8729 * @win: window to get
8731 * Retrieves the #GdkWindow corresponding to an area of the text view;
8732 * possible windows include the overall widget window, child windows
8733 * on the left, right, top, bottom, and the window that displays the
8734 * text buffer. Windows are %NULL and nonexistent if their width or
8735 * height is 0, and are nonexistent before the widget has been
8738 * Return value: (transfer none): a #GdkWindow, or %NULL
8741 gtk_text_view_get_window (GtkTextView *text_view,
8742 GtkTextWindowType win)
8744 GtkTextViewPrivate *priv = text_view->priv;
8746 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
8750 case GTK_TEXT_WINDOW_WIDGET:
8751 return gtk_widget_get_window (GTK_WIDGET (text_view));
8754 case GTK_TEXT_WINDOW_TEXT:
8755 return priv->text_window->bin_window;
8758 case GTK_TEXT_WINDOW_LEFT:
8759 if (priv->left_window)
8760 return priv->left_window->bin_window;
8765 case GTK_TEXT_WINDOW_RIGHT:
8766 if (priv->right_window)
8767 return priv->right_window->bin_window;
8772 case GTK_TEXT_WINDOW_TOP:
8773 if (priv->top_window)
8774 return priv->top_window->bin_window;
8779 case GTK_TEXT_WINDOW_BOTTOM:
8780 if (priv->bottom_window)
8781 return priv->bottom_window->bin_window;
8786 case GTK_TEXT_WINDOW_PRIVATE:
8787 g_warning ("%s: You can't get GTK_TEXT_WINDOW_PRIVATE, it has \"PRIVATE\" in the name because it is private.", G_STRFUNC);
8792 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
8797 * gtk_text_view_get_window_type:
8798 * @text_view: a #GtkTextView
8799 * @window: a window type
8801 * Usually used to find out which window an event corresponds to.
8802 * If you connect to an event signal on @text_view, this function
8803 * should be called on <literal>event->window</literal> to
8804 * see which window it was.
8806 * Return value: the window type.
8809 gtk_text_view_get_window_type (GtkTextView *text_view,
8814 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
8815 g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
8817 if (window == gtk_widget_get_window (GTK_WIDGET (text_view)))
8818 return GTK_TEXT_WINDOW_WIDGET;
8820 win = g_object_get_qdata (G_OBJECT (window),
8821 g_quark_try_string ("gtk-text-view-text-window"));
8827 return GTK_TEXT_WINDOW_PRIVATE;
8832 buffer_to_widget (GtkTextView *text_view,
8838 GtkTextViewPrivate *priv = text_view->priv;
8842 *window_x = buffer_x - priv->xoffset;
8843 *window_x += priv->text_window->allocation.x;
8848 *window_y = buffer_y - priv->yoffset;
8849 *window_y += priv->text_window->allocation.y;
8854 widget_to_text_window (GtkTextWindow *win,
8861 *window_x = widget_x - win->allocation.x;
8864 *window_y = widget_y - win->allocation.y;
8868 buffer_to_text_window (GtkTextView *text_view,
8877 g_warning ("Attempt to convert text buffer coordinates to coordinates "
8878 "for a nonexistent or private child window of GtkTextView");
8882 buffer_to_widget (text_view,
8884 window_x, window_y);
8886 widget_to_text_window (win,
8887 window_x ? *window_x : 0,
8888 window_y ? *window_y : 0,
8894 * gtk_text_view_buffer_to_window_coords:
8895 * @text_view: a #GtkTextView
8896 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
8897 * @buffer_x: buffer x coordinate
8898 * @buffer_y: buffer y coordinate
8899 * @window_x: (out) (allow-none): window x coordinate return location or %NULL
8900 * @window_y: (out) (allow-none): window y coordinate return location or %NULL
8902 * Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window
8903 * @win, and stores the result in (@window_x, @window_y).
8905 * Note that you can't convert coordinates for a nonexisting window (see
8906 * gtk_text_view_set_border_window_size()).
8909 gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
8910 GtkTextWindowType win,
8916 GtkTextViewPrivate *priv = text_view->priv;
8918 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
8922 case GTK_TEXT_WINDOW_WIDGET:
8923 buffer_to_widget (text_view,
8925 window_x, window_y);
8928 case GTK_TEXT_WINDOW_TEXT:
8930 *window_x = buffer_x - priv->xoffset;
8932 *window_y = buffer_y - priv->yoffset;
8935 case GTK_TEXT_WINDOW_LEFT:
8936 buffer_to_text_window (text_view,
8939 window_x, window_y);
8942 case GTK_TEXT_WINDOW_RIGHT:
8943 buffer_to_text_window (text_view,
8946 window_x, window_y);
8949 case GTK_TEXT_WINDOW_TOP:
8950 buffer_to_text_window (text_view,
8953 window_x, window_y);
8956 case GTK_TEXT_WINDOW_BOTTOM:
8957 buffer_to_text_window (text_view,
8958 priv->bottom_window,
8960 window_x, window_y);
8963 case GTK_TEXT_WINDOW_PRIVATE:
8964 g_warning ("%s: can't get coords for private windows", G_STRFUNC);
8968 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
8974 widget_to_buffer (GtkTextView *text_view,
8980 GtkTextViewPrivate *priv = text_view->priv;
8984 *buffer_x = widget_x + priv->xoffset;
8985 *buffer_x -= priv->text_window->allocation.x;
8990 *buffer_y = widget_y + priv->yoffset;
8991 *buffer_y -= priv->text_window->allocation.y;
8996 text_window_to_widget (GtkTextWindow *win,
9003 *widget_x = window_x + win->allocation.x;
9006 *widget_y = window_y + win->allocation.y;
9010 text_window_to_buffer (GtkTextView *text_view,
9019 g_warning ("Attempt to convert GtkTextView buffer coordinates into "
9020 "coordinates for a nonexistent child window.");
9024 text_window_to_widget (win,
9030 widget_to_buffer (text_view,
9031 buffer_x ? *buffer_x : 0,
9032 buffer_y ? *buffer_y : 0,
9038 * gtk_text_view_window_to_buffer_coords:
9039 * @text_view: a #GtkTextView
9040 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
9041 * @window_x: window x coordinate
9042 * @window_y: window y coordinate
9043 * @buffer_x: (out) (allow-none): buffer x coordinate return location or %NULL
9044 * @buffer_y: (out) (allow-none): buffer y coordinate return location or %NULL
9046 * Converts coordinates on the window identified by @win to buffer
9047 * coordinates, storing the result in (@buffer_x,@buffer_y).
9049 * Note that you can't convert coordinates for a nonexisting window (see
9050 * gtk_text_view_set_border_window_size()).
9053 gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
9054 GtkTextWindowType win,
9060 GtkTextViewPrivate *priv = text_view->priv;
9062 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9066 case GTK_TEXT_WINDOW_WIDGET:
9067 widget_to_buffer (text_view,
9069 buffer_x, buffer_y);
9072 case GTK_TEXT_WINDOW_TEXT:
9074 *buffer_x = window_x + priv->xoffset;
9076 *buffer_y = window_y + priv->yoffset;
9079 case GTK_TEXT_WINDOW_LEFT:
9080 text_window_to_buffer (text_view,
9083 buffer_x, buffer_y);
9086 case GTK_TEXT_WINDOW_RIGHT:
9087 text_window_to_buffer (text_view,
9090 buffer_x, buffer_y);
9093 case GTK_TEXT_WINDOW_TOP:
9094 text_window_to_buffer (text_view,
9097 buffer_x, buffer_y);
9100 case GTK_TEXT_WINDOW_BOTTOM:
9101 text_window_to_buffer (text_view,
9102 priv->bottom_window,
9104 buffer_x, buffer_y);
9107 case GTK_TEXT_WINDOW_PRIVATE:
9108 g_warning ("%s: can't get coords for private windows", G_STRFUNC);
9112 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
9118 set_window_width (GtkTextView *text_view,
9120 GtkTextWindowType type,
9121 GtkTextWindow **winp)
9127 text_window_free (*winp);
9129 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9136 *winp = text_window_new (type,
9137 GTK_WIDGET (text_view),
9139 /* if the widget is already realized we need to realize the child manually */
9140 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9141 text_window_realize (*winp, GTK_WIDGET (text_view));
9145 if ((*winp)->requisition.width == width)
9148 (*winp)->requisition.width = width;
9151 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9157 set_window_height (GtkTextView *text_view,
9159 GtkTextWindowType type,
9160 GtkTextWindow **winp)
9166 text_window_free (*winp);
9168 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9175 *winp = text_window_new (type,
9176 GTK_WIDGET (text_view),
9179 /* if the widget is already realized we need to realize the child manually */
9180 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9181 text_window_realize (*winp, GTK_WIDGET (text_view));
9185 if ((*winp)->requisition.height == height)
9188 (*winp)->requisition.height = height;
9191 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9196 * gtk_text_view_set_border_window_size:
9197 * @text_view: a #GtkTextView
9198 * @type: window to affect
9199 * @size: width or height of the window
9201 * Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT,
9202 * or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM.
9203 * Automatically destroys the corresponding window if the size is set
9204 * to 0, and creates the window if the size is set to non-zero. This
9205 * function can only be used for the "border windows," it doesn't work
9206 * with #GTK_TEXT_WINDOW_WIDGET, #GTK_TEXT_WINDOW_TEXT, or
9207 * #GTK_TEXT_WINDOW_PRIVATE.
9210 gtk_text_view_set_border_window_size (GtkTextView *text_view,
9211 GtkTextWindowType type,
9214 GtkTextViewPrivate *priv = text_view->priv;
9216 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9217 g_return_if_fail (size >= 0);
9221 case GTK_TEXT_WINDOW_LEFT:
9222 set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT,
9223 &priv->left_window);
9226 case GTK_TEXT_WINDOW_RIGHT:
9227 set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT,
9228 &priv->right_window);
9231 case GTK_TEXT_WINDOW_TOP:
9232 set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP,
9236 case GTK_TEXT_WINDOW_BOTTOM:
9237 set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM,
9238 &priv->bottom_window);
9242 g_warning ("Can only set size of left/right/top/bottom border windows with gtk_text_view_set_border_window_size()");
9248 * gtk_text_view_get_border_window_size:
9249 * @text_view: a #GtkTextView
9250 * @type: window to return size from
9252 * Gets the width of the specified border window. See
9253 * gtk_text_view_set_border_window_size().
9255 * Return value: width of window
9258 gtk_text_view_get_border_window_size (GtkTextView *text_view,
9259 GtkTextWindowType type)
9261 GtkTextViewPrivate *priv = text_view->priv;
9263 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
9267 case GTK_TEXT_WINDOW_LEFT:
9268 if (priv->left_window)
9269 return priv->left_window->requisition.width;
9272 case GTK_TEXT_WINDOW_RIGHT:
9273 if (priv->right_window)
9274 return priv->right_window->requisition.width;
9277 case GTK_TEXT_WINDOW_TOP:
9278 if (priv->top_window)
9279 return priv->top_window->requisition.height;
9282 case GTK_TEXT_WINDOW_BOTTOM:
9283 if (priv->bottom_window)
9284 return priv->bottom_window->requisition.height;
9288 g_warning ("Can only get size of left/right/top/bottom border windows with gtk_text_view_get_border_window_size()");
9299 static GtkTextViewChild*
9300 text_view_child_new_anchored (GtkWidget *child,
9301 GtkTextChildAnchor *anchor,
9302 GtkTextLayout *layout)
9304 GtkTextViewChild *vc;
9306 vc = g_new (GtkTextViewChild, 1);
9308 vc->type = GTK_TEXT_WINDOW_PRIVATE;
9310 vc->anchor = anchor;
9312 vc->from_top_of_line = 0;
9313 vc->from_left_of_buffer = 0;
9315 g_object_ref (vc->widget);
9316 g_object_ref (vc->anchor);
9318 g_object_set_data (G_OBJECT (child),
9319 I_("gtk-text-view-child"),
9322 gtk_text_child_anchor_register_child (anchor, child, layout);
9327 static GtkTextViewChild*
9328 text_view_child_new_window (GtkWidget *child,
9329 GtkTextWindowType type,
9333 GtkTextViewChild *vc;
9335 vc = g_new (GtkTextViewChild, 1);
9340 vc->from_top_of_line = 0;
9341 vc->from_left_of_buffer = 0;
9343 g_object_ref (vc->widget);
9349 g_object_set_data (G_OBJECT (child),
9350 I_("gtk-text-view-child"),
9357 text_view_child_free (GtkTextViewChild *child)
9359 g_object_set_data (G_OBJECT (child->widget),
9360 I_("gtk-text-view-child"), NULL);
9364 gtk_text_child_anchor_unregister_child (child->anchor,
9366 g_object_unref (child->anchor);
9369 g_object_unref (child->widget);
9375 text_view_child_set_parent_window (GtkTextView *text_view,
9376 GtkTextViewChild *vc)
9379 gtk_widget_set_parent_window (vc->widget,
9380 text_view->priv->text_window->bin_window);
9384 window = gtk_text_view_get_window (text_view,
9386 gtk_widget_set_parent_window (vc->widget, window);
9391 add_child (GtkTextView *text_view,
9392 GtkTextViewChild *vc)
9394 text_view->priv->children = g_slist_prepend (text_view->priv->children,
9397 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9398 text_view_child_set_parent_window (text_view, vc);
9400 gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view));
9404 * gtk_text_view_add_child_at_anchor:
9405 * @text_view: a #GtkTextView
9406 * @child: a #GtkWidget
9407 * @anchor: a #GtkTextChildAnchor in the #GtkTextBuffer for @text_view
9409 * Adds a child widget in the text buffer, at the given @anchor.
9412 gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
9414 GtkTextChildAnchor *anchor)
9416 GtkTextViewChild *vc;
9418 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9419 g_return_if_fail (GTK_IS_WIDGET (child));
9420 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
9421 g_return_if_fail (gtk_widget_get_parent (child) == NULL);
9423 gtk_text_view_ensure_layout (text_view);
9425 vc = text_view_child_new_anchored (child, anchor,
9426 text_view->priv->layout);
9428 add_child (text_view, vc);
9430 g_assert (vc->widget == child);
9431 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9435 * gtk_text_view_add_child_in_window:
9436 * @text_view: a #GtkTextView
9437 * @child: a #GtkWidget
9438 * @which_window: which window the child should appear in
9439 * @xpos: X position of child in window coordinates
9440 * @ypos: Y position of child in window coordinates
9442 * Adds a child at fixed coordinates in one of the text widget's
9445 * The window must have nonzero size (see
9446 * gtk_text_view_set_border_window_size()). Note that the child
9447 * coordinates are given relative to the #GdkWindow in question, and
9448 * that these coordinates have no sane relationship to scrolling. When
9449 * placing a child in #GTK_TEXT_WINDOW_WIDGET, scrolling is
9450 * irrelevant, the child floats above all scrollable areas. But when
9451 * placing a child in one of the scrollable windows (border windows or
9452 * text window), you'll need to compute the child's correct position
9453 * in buffer coordinates any time scrolling occurs or buffer changes
9454 * occur, and then call gtk_text_view_move_child() to update the
9458 gtk_text_view_add_child_in_window (GtkTextView *text_view,
9460 GtkTextWindowType which_window,
9464 GtkTextViewChild *vc;
9466 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9467 g_return_if_fail (GTK_IS_WIDGET (child));
9468 g_return_if_fail (gtk_widget_get_parent (child) == NULL);
9470 vc = text_view_child_new_window (child, which_window,
9473 add_child (text_view, vc);
9475 g_assert (vc->widget == child);
9476 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9480 * gtk_text_view_move_child:
9481 * @text_view: a #GtkTextView
9482 * @child: child widget already added to the text view
9483 * @xpos: new X position in window coordinates
9484 * @ypos: new Y position in window coordinates
9486 * Updates the position of a child, as for gtk_text_view_add_child_in_window().
9489 gtk_text_view_move_child (GtkTextView *text_view,
9494 GtkTextViewChild *vc;
9496 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9497 g_return_if_fail (GTK_IS_WIDGET (child));
9498 g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9500 vc = g_object_get_data (G_OBJECT (child),
9501 "gtk-text-view-child");
9503 g_assert (vc != NULL);
9505 if (vc->x == xpos &&
9512 if (gtk_widget_get_visible (child) &&
9513 gtk_widget_get_visible (GTK_WIDGET (text_view)))
9514 gtk_widget_queue_resize (child);
9518 /* Iterator operations */
9521 * gtk_text_view_forward_display_line:
9522 * @text_view: a #GtkTextView
9523 * @iter: a #GtkTextIter
9525 * Moves the given @iter forward by one display (wrapped) line.
9526 * A display line is different from a paragraph. Paragraphs are
9527 * separated by newlines or other paragraph separator characters.
9528 * Display lines are created by line-wrapping a paragraph. If
9529 * wrapping is turned off, display lines and paragraphs will be the
9530 * same. Display lines are divided differently for each view, since
9531 * they depend on the view's width; paragraphs are the same in all
9532 * views, since they depend on the contents of the #GtkTextBuffer.
9534 * Return value: %TRUE if @iter was moved and is not on the end iterator
9537 gtk_text_view_forward_display_line (GtkTextView *text_view,
9540 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9541 g_return_val_if_fail (iter != NULL, FALSE);
9543 gtk_text_view_ensure_layout (text_view);
9545 return gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, iter);
9549 * gtk_text_view_backward_display_line:
9550 * @text_view: a #GtkTextView
9551 * @iter: a #GtkTextIter
9553 * Moves the given @iter backward by one display (wrapped) line.
9554 * A display line is different from a paragraph. Paragraphs are
9555 * separated by newlines or other paragraph separator characters.
9556 * Display lines are created by line-wrapping a paragraph. If
9557 * wrapping is turned off, display lines and paragraphs will be the
9558 * same. Display lines are divided differently for each view, since
9559 * they depend on the view's width; paragraphs are the same in all
9560 * views, since they depend on the contents of the #GtkTextBuffer.
9562 * Return value: %TRUE if @iter was moved and is not on the end iterator
9565 gtk_text_view_backward_display_line (GtkTextView *text_view,
9568 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9569 g_return_val_if_fail (iter != NULL, FALSE);
9571 gtk_text_view_ensure_layout (text_view);
9573 return gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, iter);
9577 * gtk_text_view_forward_display_line_end:
9578 * @text_view: a #GtkTextView
9579 * @iter: a #GtkTextIter
9581 * Moves the given @iter forward to the next display line end.
9582 * A display line is different from a paragraph. Paragraphs are
9583 * separated by newlines or other paragraph separator characters.
9584 * Display lines are created by line-wrapping a paragraph. If
9585 * wrapping is turned off, display lines and paragraphs will be the
9586 * same. Display lines are divided differently for each view, since
9587 * they depend on the view's width; paragraphs are the same in all
9588 * views, since they depend on the contents of the #GtkTextBuffer.
9590 * Return value: %TRUE if @iter was moved and is not on the end iterator
9593 gtk_text_view_forward_display_line_end (GtkTextView *text_view,
9596 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9597 g_return_val_if_fail (iter != NULL, FALSE);
9599 gtk_text_view_ensure_layout (text_view);
9601 return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, 1);
9605 * gtk_text_view_backward_display_line_start:
9606 * @text_view: a #GtkTextView
9607 * @iter: a #GtkTextIter
9609 * Moves the given @iter backward to the next display line start.
9610 * A display line is different from a paragraph. Paragraphs are
9611 * separated by newlines or other paragraph separator characters.
9612 * Display lines are created by line-wrapping a paragraph. If
9613 * wrapping is turned off, display lines and paragraphs will be the
9614 * same. Display lines are divided differently for each view, since
9615 * they depend on the view's width; paragraphs are the same in all
9616 * views, since they depend on the contents of the #GtkTextBuffer.
9618 * Return value: %TRUE if @iter was moved and is not on the end iterator
9621 gtk_text_view_backward_display_line_start (GtkTextView *text_view,
9624 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9625 g_return_val_if_fail (iter != NULL, FALSE);
9627 gtk_text_view_ensure_layout (text_view);
9629 return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, -1);
9633 * gtk_text_view_starts_display_line:
9634 * @text_view: a #GtkTextView
9635 * @iter: a #GtkTextIter
9637 * Determines whether @iter is at the start of a display line.
9638 * See gtk_text_view_forward_display_line() for an explanation of
9639 * display lines vs. paragraphs.
9641 * Return value: %TRUE if @iter begins a wrapped line
9644 gtk_text_view_starts_display_line (GtkTextView *text_view,
9645 const GtkTextIter *iter)
9647 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9648 g_return_val_if_fail (iter != NULL, FALSE);
9650 gtk_text_view_ensure_layout (text_view);
9652 return gtk_text_layout_iter_starts_line (text_view->priv->layout, iter);
9656 * gtk_text_view_move_visually:
9657 * @text_view: a #GtkTextView
9658 * @iter: a #GtkTextIter
9659 * @count: number of characters to move (negative moves left,
9660 * positive moves right)
9662 * Move the iterator a given number of characters visually, treating
9663 * it as the strong cursor position. If @count is positive, then the
9664 * new strong cursor position will be @count positions to the right of
9665 * the old cursor position. If @count is negative then the new strong
9666 * cursor position will be @count positions to the left of the old
9669 * In the presence of bi-directional text, the correspondence
9670 * between logical and visual order will depend on the direction
9671 * of the current run, and there may be jumps when the cursor
9672 * is moved off of the end of a run.
9674 * Return value: %TRUE if @iter moved and is not on the end iterator
9677 gtk_text_view_move_visually (GtkTextView *text_view,
9681 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9682 g_return_val_if_fail (iter != NULL, FALSE);
9684 gtk_text_view_ensure_layout (text_view);
9686 return gtk_text_layout_move_iter_visually (text_view->priv->layout, iter, count);
9690 * gtk_text_view_set_input_purpose:
9691 * @text_view: a #GtkTextView
9692 * @purpose: the purpose
9694 * Sets the #GtkTextView:input-purpose property which
9695 * can be used by on-screen keyboards and other input
9696 * methods to adjust their behaviour.
9702 gtk_text_view_set_input_purpose (GtkTextView *text_view,
9703 GtkInputPurpose purpose)
9706 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9708 if (gtk_text_view_get_input_purpose (text_view) != purpose)
9710 g_object_set (G_OBJECT (text_view->priv->im_context),
9711 "input-purpose", purpose,
9714 g_object_notify (G_OBJECT (text_view), "input-purpose");
9719 * gtk_text_view_get_input_purpose:
9720 * @text_view: a #GtkTextView
9722 * Gets the value of the #GtkTextView:input-purpose property.
9728 gtk_text_view_get_input_purpose (GtkTextView *text_view)
9730 GtkInputPurpose purpose;
9732 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_INPUT_PURPOSE_FREE_FORM);
9734 g_object_get (G_OBJECT (text_view->priv->im_context),
9735 "input-purpose", &purpose,
9742 * gtk_text_view_set_input_hints:
9743 * @text_view: a #GtkTextView
9746 * Sets the #GtkTextView:input-hints property, which
9747 * allows input methods to fine-tune their behaviour.
9753 gtk_text_view_set_input_hints (GtkTextView *text_view,
9754 GtkInputHints hints)
9757 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9759 if (gtk_text_view_get_input_hints (text_view) != hints)
9761 g_object_set (G_OBJECT (text_view->priv->im_context),
9762 "input-hints", hints,
9765 g_object_notify (G_OBJECT (text_view), "input-hints");
9770 * gtk_text_view_get_input_hints:
9771 * @text_view: a #GtkTextView
9773 * Gets the value of the #GtkTextView:input-hints property.
9779 gtk_text_view_get_input_hints (GtkTextView *text_view)
9781 GtkInputHints hints;
9783 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_INPUT_HINT_NONE);
9785 g_object_get (G_OBJECT (text_view->priv->im_context),
9786 "input-hints", &hints,