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, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
22 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
23 * file for a list of people on the GTK+ Team. See the ChangeLog
24 * files for a list of changes. These files are distributed with
25 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
32 #define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API
33 #include "gtkbindings.h"
35 #include "gtkimagemenuitem.h"
38 #include "gtkmarshalers.h"
40 #include "gtkmenuitem.h"
41 #include "gtkseparatormenuitem.h"
42 #include "gtksettings.h"
43 #include "gtkselectionprivate.h"
45 #include "gtktextbufferrichtext.h"
46 #include "gtktextdisplay.h"
47 #include "gtktextview.h"
48 #include "gtkimmulticontext.h"
49 #include "gtkprivate.h"
50 #include "gtktextutil.h"
51 #include "gtkwidgetprivate.h"
52 #include "gtkwindow.h"
53 #include "gtkscrollable.h"
54 #include "gtktypebuiltins.h"
56 #include "a11y/gtktextviewaccessible.h"
60 * @Short_description: Widget that displays a GtkTextBuffer
62 * @See_also: #GtkTextBuffer, #GtkTextIter
64 * You may wish to begin by reading the <link linkend="TextWidget">text widget
65 * conceptual overview</link> which gives an overview of all the objects and data
66 * types related to the text widget and how they work together.
70 /* How scrolling, validation, exposes, etc. work.
72 * The expose_event handler has the invariant that the onscreen lines
73 * have been validated.
75 * There are two ways that onscreen lines can become invalid. The first
76 * is to change which lines are onscreen. This happens when the value
77 * of a scroll adjustment changes. So the code path begins in
78 * gtk_text_view_value_changed() and goes like this:
79 * - gdk_window_scroll() to reflect the new adjustment value
80 * - validate the lines that were moved onscreen
81 * - gdk_window_process_updates() to handle the exposes immediately
83 * The second way is that you get the "invalidated" signal from the layout,
84 * indicating that lines have become invalid. This code path begins in
85 * invalidated_handler() and goes like this:
86 * - install high-priority idle which does the rest of the steps
87 * - if a scroll is pending from scroll_to_mark(), do the scroll,
88 * jumping to the gtk_text_view_value_changed() code path
89 * - otherwise, validate the onscreen lines
90 * - DO NOT process updates
92 * In both cases, validating the onscreen lines can trigger a scroll
93 * due to maintaining the first_para on the top of the screen.
94 * If validation triggers a scroll, we jump to the top of the code path
95 * for value_changed, and bail out of the current code path.
97 * Also, in size_allocate, if we invalidate some lines from changing
98 * the layout width, we need to go ahead and run the high-priority idle,
99 * because GTK sends exposes right after doing the size allocates without
100 * returning to the main loop. This is also why the high-priority idle
101 * is at a higher priority than resizing.
106 #define DEBUG_VALIDATION_AND_SCROLLING
109 #ifdef DEBUG_VALIDATION_AND_SCROLLING
115 #define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->priv->text_window)
116 #define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->priv->text_window)
118 #define SPACE_FOR_CURSOR 1
120 #define GTK_TEXT_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_TEXT_VIEW, GtkTextViewPrivate))
122 typedef struct _GtkTextWindow GtkTextWindow;
123 typedef struct _GtkTextPendingScroll GtkTextPendingScroll;
125 struct _GtkTextViewPrivate
127 GtkTextLayout *layout;
128 GtkTextBuffer *buffer;
130 guint blink_time; /* time in msec the cursor has blinked since last user event */
133 GdkDevice *grab_device;
134 GdkDevice *dnd_device;
136 gulong selection_drag_handler;
138 GtkTextWindow *text_window;
139 GtkTextWindow *left_window;
140 GtkTextWindow *right_window;
141 GtkTextWindow *top_window;
142 GtkTextWindow *bottom_window;
144 GtkAdjustment *hadjustment;
145 GtkAdjustment *vadjustment;
147 gint xoffset; /* Offsets between widget coordinates and buffer coordinates */
149 gint width; /* Width and height of the buffer */
152 /* This is used to monitor the overall size request
153 * and decide whether we need to queue resizes when
154 * the buffer content changes.
156 * FIXME: This could be done in a simpler way by
157 * consulting the above width/height of the buffer + some
158 * padding values, however all of this request code needs
159 * to be changed to use GtkWidget Iface and deserves
162 GtkRequisition cached_size_request;
164 /* The virtual cursor position is normally the same as the
165 * actual (strong) cursor position, except in two circumstances:
167 * a) When the cursor is moved vertically with the keyboard
168 * b) When the text view is scrolled with the keyboard
170 * In case a), virtual_cursor_x is preserved, but not virtual_cursor_y
171 * In case b), both virtual_cursor_x and virtual_cursor_y are preserved.
173 gint virtual_cursor_x; /* -1 means use actual cursor position */
174 gint virtual_cursor_y; /* -1 means use actual cursor position */
176 GtkTextMark *first_para_mark; /* Mark at the beginning of the first onscreen paragraph */
177 gint first_para_pixels; /* Offset of top of screen in the first onscreen paragraph */
180 guint scroll_timeout;
182 guint first_validate_idle; /* Idle to revalidate onscreen portion, runs before resize */
183 guint incremental_validate_idle; /* Idle to revalidate offscreen portions, runs after redraw */
185 gint pending_place_cursor_button;
187 GtkTextMark *dnd_mark;
189 GtkIMContext *im_context;
190 GtkWidget *popup_menu;
197 GtkTextPendingScroll *pending_scroll;
199 /* Default style settings */
200 gint pixels_above_lines;
201 gint pixels_below_lines;
202 gint pixels_inside_wrap;
203 GtkWrapMode wrap_mode;
204 GtkJustification justify;
211 guint overwrite_mode : 1;
212 guint cursor_visible : 1;
214 /* if we have reset the IM since the last character entered */
215 guint need_im_reset : 1;
217 guint accepts_tab : 1;
219 guint width_changed : 1;
221 /* debug flag - means that we've validated onscreen since the
222 * last "invalidate" signal from the layout
224 guint onscreen_validated : 1;
226 guint mouse_cursor_obscured : 1;
228 guint scroll_after_paste : 1;
230 /* GtkScrollablePolicy needs to be checked when
231 * driving the scrollable adjustment values */
232 guint hscroll_policy : 1;
233 guint vscroll_policy : 1;
236 struct _GtkTextPendingScroll
239 gdouble within_margin;
260 TOGGLE_CURSOR_VISIBLE,
268 PROP_PIXELS_ABOVE_LINES,
269 PROP_PIXELS_BELOW_LINES,
270 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,
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 entry.
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));
799 /* GtkScrollable interface */
800 g_object_class_override_property (gobject_class, PROP_HADJUSTMENT, "hadjustment");
801 g_object_class_override_property (gobject_class, PROP_VADJUSTMENT, "vadjustment");
802 g_object_class_override_property (gobject_class, PROP_HSCROLL_POLICY, "hscroll-policy");
803 g_object_class_override_property (gobject_class, PROP_VSCROLL_POLICY, "vscroll-policy");
808 gtk_widget_class_install_style_property (widget_class,
809 g_param_spec_boxed ("error-underline-color",
810 P_("Error underline color"),
811 P_("Color with which to draw error-indication underlines"),
813 GTK_PARAM_READABLE));
820 * GtkTextView::move-cursor:
821 * @text_view: the object which received the signal
822 * @step: the granularity of the move, as a #GtkMovementStep
823 * @count: the number of @step units to move
824 * @extend_selection: %TRUE if the move should extend the selection
826 * The ::move-cursor signal is a
827 * <link linkend="keybinding-signals">keybinding signal</link>
828 * which gets emitted when the user initiates a cursor movement.
829 * If the cursor is not visible in @text_view, this signal causes
830 * the viewport to be moved instead.
832 * Applications should not connect to it, but may emit it with
833 * g_signal_emit_by_name() if they need to control the cursor
836 * The default bindings for this signal come in two variants,
837 * the variant with the Shift modifier extends the selection,
838 * the variant without the Shift modifer does not.
839 * There are too many key combinations to list them all here.
841 * <listitem>Arrow keys move by individual characters/lines</listitem>
842 * <listitem>Ctrl-arrow key combinations move by words/paragraphs</listitem>
843 * <listitem>Home/End keys move to the ends of the buffer</listitem>
844 * <listitem>PageUp/PageDown keys move vertically by pages</listitem>
845 * <listitem>Ctrl-PageUp/PageDown keys move horizontally by pages</listitem>
848 signals[MOVE_CURSOR] =
849 g_signal_new (I_("move-cursor"),
850 G_OBJECT_CLASS_TYPE (gobject_class),
851 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
852 G_STRUCT_OFFSET (GtkTextViewClass, move_cursor),
854 _gtk_marshal_VOID__ENUM_INT_BOOLEAN,
856 GTK_TYPE_MOVEMENT_STEP,
861 * GtkTextView::move-viewport:
862 * @text_view: the object which received the signal
863 * @step: the granularity of the move, as a #GtkMovementStep
864 * @count: the number of @step units to move
866 * The ::move-viewport signal is a
867 * <link linkend="keybinding-signals">keybinding signal</link>
868 * which can be bound to key combinations to allow the user
869 * to move the viewport, i.e. change what part of the text view
870 * is visible in a containing scrolled window.
872 * There are no default bindings for this signal.
874 signals[MOVE_VIEWPORT] =
875 g_signal_new_class_handler (I_("move-viewport"),
876 G_OBJECT_CLASS_TYPE (gobject_class),
877 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
878 G_CALLBACK (gtk_text_view_move_viewport),
880 _gtk_marshal_VOID__ENUM_INT,
882 GTK_TYPE_SCROLL_STEP,
886 * GtkTextView::set-anchor:
887 * @text_view: the object which received the signal
889 * The ::set-anchor signal is a
890 * <link linkend="keybinding-signals">keybinding signal</link>
891 * which gets emitted when the user initiates setting the "anchor"
892 * mark. The "anchor" mark gets placed at the same position as the
895 * This signal has no default bindings.
897 signals[SET_ANCHOR] =
898 g_signal_new (I_("set-anchor"),
899 G_OBJECT_CLASS_TYPE (gobject_class),
900 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
901 G_STRUCT_OFFSET (GtkTextViewClass, set_anchor),
903 _gtk_marshal_VOID__VOID,
907 * GtkTextView::insert-at-cursor:
908 * @text_view: the object which received the signal
909 * @string: the string to insert
911 * The ::insert-at-cursor signal is a
912 * <link linkend="keybinding-signals">keybinding signal</link>
913 * which gets emitted when the user initiates the insertion of a
914 * fixed string at the cursor.
916 * This signal has no default bindings.
918 signals[INSERT_AT_CURSOR] =
919 g_signal_new (I_("insert-at-cursor"),
920 G_OBJECT_CLASS_TYPE (gobject_class),
921 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
922 G_STRUCT_OFFSET (GtkTextViewClass, insert_at_cursor),
924 _gtk_marshal_VOID__STRING,
929 * GtkTextView::delete-from-cursor:
930 * @text_view: the object which received the signal
931 * @type: the granularity of the deletion, as a #GtkDeleteType
932 * @count: the number of @type units to delete
934 * The ::delete-from-cursor signal is a
935 * <link linkend="keybinding-signals">keybinding signal</link>
936 * which gets emitted when the user initiates a text deletion.
938 * If the @type is %GTK_DELETE_CHARS, GTK+ deletes the selection
939 * if there is one, otherwise it deletes the requested number
942 * The default bindings for this signal are
943 * Delete for deleting a character, Ctrl-Delete for
944 * deleting a word and Ctrl-Backspace for deleting a word
947 signals[DELETE_FROM_CURSOR] =
948 g_signal_new (I_("delete-from-cursor"),
949 G_OBJECT_CLASS_TYPE (gobject_class),
950 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
951 G_STRUCT_OFFSET (GtkTextViewClass, delete_from_cursor),
953 _gtk_marshal_VOID__ENUM_INT,
955 GTK_TYPE_DELETE_TYPE,
959 * GtkTextView::backspace:
960 * @text_view: the object which received the signal
962 * The ::backspace signal is a
963 * <link linkend="keybinding-signals">keybinding signal</link>
964 * which gets emitted when the user asks for it.
966 * The default bindings for this signal are
967 * Backspace and Shift-Backspace.
970 g_signal_new (I_("backspace"),
971 G_OBJECT_CLASS_TYPE (gobject_class),
972 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
973 G_STRUCT_OFFSET (GtkTextViewClass, backspace),
975 _gtk_marshal_VOID__VOID,
979 * GtkTextView::cut-clipboard:
980 * @text_view: the object which received the signal
982 * The ::cut-clipboard signal is a
983 * <link linkend="keybinding-signals">keybinding signal</link>
984 * which gets emitted to cut the selection to the clipboard.
986 * The default bindings for this signal are
987 * Ctrl-x and Shift-Delete.
989 signals[CUT_CLIPBOARD] =
990 g_signal_new (I_("cut-clipboard"),
991 G_OBJECT_CLASS_TYPE (gobject_class),
992 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
993 G_STRUCT_OFFSET (GtkTextViewClass, cut_clipboard),
995 _gtk_marshal_VOID__VOID,
999 * GtkTextView::copy-clipboard:
1000 * @text_view: the object which received the signal
1002 * The ::copy-clipboard signal is a
1003 * <link linkend="keybinding-signals">keybinding signal</link>
1004 * which gets emitted to copy the selection to the clipboard.
1006 * The default bindings for this signal are
1007 * Ctrl-c and Ctrl-Insert.
1009 signals[COPY_CLIPBOARD] =
1010 g_signal_new (I_("copy-clipboard"),
1011 G_OBJECT_CLASS_TYPE (gobject_class),
1012 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1013 G_STRUCT_OFFSET (GtkTextViewClass, copy_clipboard),
1015 _gtk_marshal_VOID__VOID,
1019 * GtkTextView::paste-clipboard:
1020 * @text_view: the object which received the signal
1022 * The ::paste-clipboard signal is a
1023 * <link linkend="keybinding-signals">keybinding signal</link>
1024 * which gets emitted to paste the contents of the clipboard
1025 * into the text view.
1027 * The default bindings for this signal are
1028 * Ctrl-v and Shift-Insert.
1030 signals[PASTE_CLIPBOARD] =
1031 g_signal_new (I_("paste-clipboard"),
1032 G_OBJECT_CLASS_TYPE (gobject_class),
1033 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1034 G_STRUCT_OFFSET (GtkTextViewClass, paste_clipboard),
1036 _gtk_marshal_VOID__VOID,
1040 * GtkTextView::toggle-overwrite:
1041 * @text_view: the object which received the signal
1043 * The ::toggle-overwrite signal is a
1044 * <link linkend="keybinding-signals">keybinding signal</link>
1045 * which gets emitted to toggle the overwrite mode of the text view.
1047 * The default bindings for this signal is Insert.
1049 signals[TOGGLE_OVERWRITE] =
1050 g_signal_new (I_("toggle-overwrite"),
1051 G_OBJECT_CLASS_TYPE (gobject_class),
1052 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1053 G_STRUCT_OFFSET (GtkTextViewClass, toggle_overwrite),
1055 _gtk_marshal_VOID__VOID,
1059 * GtkTextView::populate-popup:
1060 * @entry: The text view on which the signal is emitted
1061 * @menu: the menu that is being populated
1063 * The ::populate-popup signal gets emitted before showing the
1064 * context menu of the text view.
1066 * If you need to add items to the context menu, connect
1067 * to this signal and append your menuitems to the @menu.
1069 signals[POPULATE_POPUP] =
1070 g_signal_new (I_("populate-popup"),
1071 G_OBJECT_CLASS_TYPE (gobject_class),
1073 G_STRUCT_OFFSET (GtkTextViewClass, populate_popup),
1075 _gtk_marshal_VOID__OBJECT,
1080 * GtkTextView::select-all:
1081 * @text_view: the object which received the signal
1082 * @select: %TRUE to select, %FALSE to unselect
1084 * The ::select-all signal is a
1085 * <link linkend="keybinding-signals">keybinding signal</link>
1086 * which gets emitted to select or unselect the complete
1087 * contents of the text view.
1089 * The default bindings for this signal are Ctrl-a and Ctrl-/
1090 * for selecting and Shift-Ctrl-a and Ctrl-\ for unselecting.
1092 signals[SELECT_ALL] =
1093 g_signal_new_class_handler (I_("select-all"),
1094 G_OBJECT_CLASS_TYPE (gobject_class),
1095 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1096 G_CALLBACK (gtk_text_view_select_all),
1098 _gtk_marshal_VOID__BOOLEAN,
1099 G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
1102 * GtkTextView::toggle-cursor-visible:
1103 * @text_view: the object which received the signal
1105 * The ::toggle-cursor-visible signal is a
1106 * <link linkend="keybinding-signals">keybinding signal</link>
1107 * which gets emitted to toggle the visibility of the cursor.
1109 * The default binding for this signal is F7.
1111 signals[TOGGLE_CURSOR_VISIBLE] =
1112 g_signal_new_class_handler (I_("toggle-cursor-visible"),
1113 G_OBJECT_CLASS_TYPE (gobject_class),
1114 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1115 G_CALLBACK (gtk_text_view_toggle_cursor_visible),
1117 _gtk_marshal_VOID__VOID,
1121 * GtkTextView::preedit-changed:
1122 * @text_view: the object which received the signal
1123 * @preedit: the current preedit string
1125 * If an input method is used, the typed text will not immediately
1126 * be committed to the buffer. So if you are interested in the text,
1127 * connect to this signal.
1129 * This signal is only emitted if the text at the given position
1130 * is actually editable.
1134 signals[PREEDIT_CHANGED] =
1135 g_signal_new_class_handler (I_("preedit-changed"),
1136 G_OBJECT_CLASS_TYPE (gobject_class),
1137 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1140 _gtk_marshal_VOID__STRING,
1148 binding_set = gtk_binding_set_by_class (klass);
1150 /* Moving the insertion point */
1151 add_move_binding (binding_set, GDK_KEY_Right, 0,
1152 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
1154 add_move_binding (binding_set, GDK_KEY_KP_Right, 0,
1155 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
1157 add_move_binding (binding_set, GDK_KEY_Left, 0,
1158 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
1160 add_move_binding (binding_set, GDK_KEY_KP_Left, 0,
1161 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
1163 add_move_binding (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK,
1164 GTK_MOVEMENT_WORDS, 1);
1166 add_move_binding (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK,
1167 GTK_MOVEMENT_WORDS, 1);
1169 add_move_binding (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK,
1170 GTK_MOVEMENT_WORDS, -1);
1172 add_move_binding (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK,
1173 GTK_MOVEMENT_WORDS, -1);
1175 add_move_binding (binding_set, GDK_KEY_Up, 0,
1176 GTK_MOVEMENT_DISPLAY_LINES, -1);
1178 add_move_binding (binding_set, GDK_KEY_KP_Up, 0,
1179 GTK_MOVEMENT_DISPLAY_LINES, -1);
1181 add_move_binding (binding_set, GDK_KEY_Down, 0,
1182 GTK_MOVEMENT_DISPLAY_LINES, 1);
1184 add_move_binding (binding_set, GDK_KEY_KP_Down, 0,
1185 GTK_MOVEMENT_DISPLAY_LINES, 1);
1187 add_move_binding (binding_set, GDK_KEY_Up, GDK_CONTROL_MASK,
1188 GTK_MOVEMENT_PARAGRAPHS, -1);
1190 add_move_binding (binding_set, GDK_KEY_KP_Up, GDK_CONTROL_MASK,
1191 GTK_MOVEMENT_PARAGRAPHS, -1);
1193 add_move_binding (binding_set, GDK_KEY_Down, GDK_CONTROL_MASK,
1194 GTK_MOVEMENT_PARAGRAPHS, 1);
1196 add_move_binding (binding_set, GDK_KEY_KP_Down, GDK_CONTROL_MASK,
1197 GTK_MOVEMENT_PARAGRAPHS, 1);
1199 add_move_binding (binding_set, GDK_KEY_Home, 0,
1200 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
1202 add_move_binding (binding_set, GDK_KEY_KP_Home, 0,
1203 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
1205 add_move_binding (binding_set, GDK_KEY_End, 0,
1206 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
1208 add_move_binding (binding_set, GDK_KEY_KP_End, 0,
1209 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
1211 add_move_binding (binding_set, GDK_KEY_Home, GDK_CONTROL_MASK,
1212 GTK_MOVEMENT_BUFFER_ENDS, -1);
1214 add_move_binding (binding_set, GDK_KEY_KP_Home, GDK_CONTROL_MASK,
1215 GTK_MOVEMENT_BUFFER_ENDS, -1);
1217 add_move_binding (binding_set, GDK_KEY_End, GDK_CONTROL_MASK,
1218 GTK_MOVEMENT_BUFFER_ENDS, 1);
1220 add_move_binding (binding_set, GDK_KEY_KP_End, GDK_CONTROL_MASK,
1221 GTK_MOVEMENT_BUFFER_ENDS, 1);
1223 add_move_binding (binding_set, GDK_KEY_Page_Up, 0,
1224 GTK_MOVEMENT_PAGES, -1);
1226 add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0,
1227 GTK_MOVEMENT_PAGES, -1);
1229 add_move_binding (binding_set, GDK_KEY_Page_Down, 0,
1230 GTK_MOVEMENT_PAGES, 1);
1232 add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0,
1233 GTK_MOVEMENT_PAGES, 1);
1235 add_move_binding (binding_set, GDK_KEY_Page_Up, GDK_CONTROL_MASK,
1236 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
1238 add_move_binding (binding_set, GDK_KEY_KP_Page_Up, GDK_CONTROL_MASK,
1239 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
1241 add_move_binding (binding_set, GDK_KEY_Page_Down, GDK_CONTROL_MASK,
1242 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
1244 add_move_binding (binding_set, GDK_KEY_KP_Page_Down, GDK_CONTROL_MASK,
1245 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
1248 gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK,
1250 G_TYPE_BOOLEAN, TRUE);
1252 gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK,
1254 G_TYPE_BOOLEAN, TRUE);
1257 gtk_binding_entry_add_signal (binding_set, GDK_KEY_backslash, GDK_CONTROL_MASK,
1259 G_TYPE_BOOLEAN, FALSE);
1261 gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1263 G_TYPE_BOOLEAN, FALSE);
1266 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, 0,
1267 "delete-from-cursor", 2,
1268 G_TYPE_ENUM, GTK_DELETE_CHARS,
1271 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, 0,
1272 "delete-from-cursor", 2,
1273 G_TYPE_ENUM, GTK_DELETE_CHARS,
1276 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0,
1279 /* Make this do the same as Backspace, to help with mis-typing */
1280 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK,
1283 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_CONTROL_MASK,
1284 "delete-from-cursor", 2,
1285 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1288 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_CONTROL_MASK,
1289 "delete-from-cursor", 2,
1290 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1293 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK,
1294 "delete-from-cursor", 2,
1295 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1298 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1299 "delete-from-cursor", 2,
1300 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1303 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1304 "delete-from-cursor", 2,
1305 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1308 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1309 "delete-from-cursor", 2,
1310 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1313 /* Cut/copy/paste */
1315 gtk_binding_entry_add_signal (binding_set, GDK_KEY_x, GDK_CONTROL_MASK,
1316 "cut-clipboard", 0);
1317 gtk_binding_entry_add_signal (binding_set, GDK_KEY_c, GDK_CONTROL_MASK,
1318 "copy-clipboard", 0);
1319 gtk_binding_entry_add_signal (binding_set, GDK_KEY_v, GDK_CONTROL_MASK,
1320 "paste-clipboard", 0);
1322 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK,
1323 "cut-clipboard", 0);
1324 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_CONTROL_MASK,
1325 "copy-clipboard", 0);
1326 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_SHIFT_MASK,
1327 "paste-clipboard", 0);
1330 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, 0,
1331 "toggle-overwrite", 0);
1332 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Insert, 0,
1333 "toggle-overwrite", 0);
1336 gtk_binding_entry_add_signal (binding_set, GDK_KEY_F7, 0,
1337 "toggle-cursor-visible", 0);
1339 /* Control-tab focus motion */
1340 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_CONTROL_MASK,
1342 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1343 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_CONTROL_MASK,
1345 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1347 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1349 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1350 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1352 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1354 g_type_class_add_private (gobject_class, sizeof (GtkTextViewPrivate));
1356 gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_TEXT_VIEW_ACCESSIBLE);
1360 gtk_text_view_init (GtkTextView *text_view)
1362 GtkWidget *widget = GTK_WIDGET (text_view);
1363 GtkTargetList *target_list;
1364 GtkTextViewPrivate *priv;
1366 text_view->priv = GTK_TEXT_VIEW_GET_PRIVATE (text_view);
1367 priv = text_view->priv;
1369 gtk_widget_set_can_focus (widget, TRUE);
1371 /* Set up default style */
1372 priv->wrap_mode = GTK_WRAP_NONE;
1373 priv->pixels_above_lines = 0;
1374 priv->pixels_below_lines = 0;
1375 priv->pixels_inside_wrap = 0;
1376 priv->justify = GTK_JUSTIFY_LEFT;
1377 priv->left_margin = 0;
1378 priv->right_margin = 0;
1381 priv->editable = TRUE;
1383 priv->scroll_after_paste = TRUE;
1385 gtk_drag_dest_set (widget, 0, NULL, 0,
1386 GDK_ACTION_COPY | GDK_ACTION_MOVE);
1388 target_list = gtk_target_list_new (NULL, 0);
1389 gtk_drag_dest_set_target_list (widget, target_list);
1390 gtk_target_list_unref (target_list);
1392 priv->virtual_cursor_x = -1;
1393 priv->virtual_cursor_y = -1;
1395 /* This object is completely private. No external entity can gain a reference
1396 * to it; so we create it here and destroy it in finalize ().
1398 priv->im_context = gtk_im_multicontext_new ();
1400 g_signal_connect (priv->im_context, "commit",
1401 G_CALLBACK (gtk_text_view_commit_handler), text_view);
1402 g_signal_connect (priv->im_context, "preedit-changed",
1403 G_CALLBACK (gtk_text_view_preedit_changed_handler), text_view);
1404 g_signal_connect (priv->im_context, "retrieve-surrounding",
1405 G_CALLBACK (gtk_text_view_retrieve_surrounding_handler), text_view);
1406 g_signal_connect (priv->im_context, "delete-surrounding",
1407 G_CALLBACK (gtk_text_view_delete_surrounding_handler), text_view);
1409 priv->cursor_visible = TRUE;
1411 priv->accepts_tab = TRUE;
1413 priv->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT,
1416 priv->drag_start_x = -1;
1417 priv->drag_start_y = -1;
1419 priv->pending_place_cursor_button = 0;
1421 /* We handle all our own redrawing */
1422 gtk_widget_set_redraw_on_allocate (widget, FALSE);
1426 * gtk_text_view_new:
1428 * Creates a new #GtkTextView. If you don't call gtk_text_view_set_buffer()
1429 * before using the text view, an empty default buffer will be created
1430 * for you. Get the buffer with gtk_text_view_get_buffer(). If you want
1431 * to specify your own buffer, consider gtk_text_view_new_with_buffer().
1433 * Return value: a new #GtkTextView
1436 gtk_text_view_new (void)
1438 return g_object_new (GTK_TYPE_TEXT_VIEW, NULL);
1442 * gtk_text_view_new_with_buffer:
1443 * @buffer: a #GtkTextBuffer
1445 * Creates a new #GtkTextView widget displaying the buffer
1446 * @buffer. One buffer can be shared among many widgets.
1447 * @buffer may be %NULL to create a default buffer, in which case
1448 * this function is equivalent to gtk_text_view_new(). The
1449 * text view adds its own reference count to the buffer; it does not
1450 * take over an existing reference.
1452 * Return value: a new #GtkTextView.
1455 gtk_text_view_new_with_buffer (GtkTextBuffer *buffer)
1457 GtkTextView *text_view;
1459 text_view = (GtkTextView*)gtk_text_view_new ();
1461 gtk_text_view_set_buffer (text_view, buffer);
1463 return GTK_WIDGET (text_view);
1467 * gtk_text_view_set_buffer:
1468 * @text_view: a #GtkTextView
1469 * @buffer: (allow-none): a #GtkTextBuffer
1471 * Sets @buffer as the buffer being displayed by @text_view. The previous
1472 * buffer displayed by the text view is unreferenced, and a reference is
1473 * added to @buffer. If you owned a reference to @buffer before passing it
1474 * to this function, you must remove that reference yourself; #GtkTextView
1475 * will not "adopt" it.
1478 gtk_text_view_set_buffer (GtkTextView *text_view,
1479 GtkTextBuffer *buffer)
1481 GtkTextViewPrivate *priv;
1483 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1484 g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer));
1486 priv = text_view->priv;
1488 if (priv->buffer == buffer)
1491 if (priv->buffer != NULL)
1493 /* Destroy all anchored children */
1497 copy = g_slist_copy (priv->children);
1499 while (tmp_list != NULL)
1501 GtkTextViewChild *vc = tmp_list->data;
1505 gtk_widget_destroy (vc->widget);
1506 /* vc may now be invalid! */
1509 tmp_list = g_slist_next (tmp_list);
1512 g_slist_free (copy);
1514 g_signal_handlers_disconnect_by_func (priv->buffer,
1515 gtk_text_view_mark_set_handler,
1517 g_signal_handlers_disconnect_by_func (priv->buffer,
1518 gtk_text_view_target_list_notify,
1520 g_signal_handlers_disconnect_by_func (priv->buffer,
1521 gtk_text_view_paste_done_handler,
1524 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
1526 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1527 GDK_SELECTION_PRIMARY);
1528 gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard);
1532 gtk_text_layout_set_buffer (priv->layout, NULL);
1534 g_object_unref (priv->buffer);
1535 priv->dnd_mark = NULL;
1536 priv->first_para_mark = NULL;
1537 cancel_pending_scroll (text_view);
1540 priv->buffer = buffer;
1543 gtk_text_layout_set_buffer (priv->layout, buffer);
1549 g_object_ref (buffer);
1551 gtk_text_buffer_get_iter_at_offset (priv->buffer, &start, 0);
1553 priv->dnd_mark = gtk_text_buffer_create_mark (priv->buffer,
1557 priv->first_para_mark = gtk_text_buffer_create_mark (priv->buffer,
1561 priv->first_para_pixels = 0;
1564 g_signal_connect (priv->buffer, "mark-set",
1565 G_CALLBACK (gtk_text_view_mark_set_handler),
1567 g_signal_connect (priv->buffer, "notify::paste-target-list",
1568 G_CALLBACK (gtk_text_view_target_list_notify),
1570 g_signal_connect (priv->buffer, "paste-done",
1571 G_CALLBACK (gtk_text_view_paste_done_handler),
1574 gtk_text_view_target_list_notify (priv->buffer, NULL, text_view);
1576 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
1578 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1579 GDK_SELECTION_PRIMARY);
1580 gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard);
1584 g_object_notify (G_OBJECT (text_view), "buffer");
1586 if (gtk_widget_get_visible (GTK_WIDGET (text_view)))
1587 gtk_widget_queue_draw (GTK_WIDGET (text_view));
1589 DV(g_print ("Invalidating due to set_buffer\n"));
1590 gtk_text_view_invalidate (text_view);
1593 static GtkTextBuffer*
1594 get_buffer (GtkTextView *text_view)
1596 if (text_view->priv->buffer == NULL)
1599 b = gtk_text_buffer_new (NULL);
1600 gtk_text_view_set_buffer (text_view, b);
1604 return text_view->priv->buffer;
1608 * gtk_text_view_get_buffer:
1609 * @text_view: a #GtkTextView
1611 * Returns the #GtkTextBuffer being displayed by this text view.
1612 * The reference count on the buffer is not incremented; the caller
1613 * of this function won't own a new reference.
1615 * Return value: (transfer none): a #GtkTextBuffer
1618 gtk_text_view_get_buffer (GtkTextView *text_view)
1620 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
1622 return get_buffer (text_view);
1626 * gtk_text_view_get_cursor_locations:
1627 * @text_view: a #GtkTextView
1628 * @iter: (allow-none): a #GtkTextIter
1629 * @strong: (out) (allow-none): location to store the strong
1630 * cursor position (may be %NULL)
1631 * @weak: (out) (allow-none): location to store the weak
1632 * cursor position (may be %NULL)
1634 * Given an @iter within a text layout, determine the positions of the
1635 * strong and weak cursors if the insertion point is at that
1636 * iterator. The position of each cursor is stored as a zero-width
1637 * rectangle. The strong cursor location is the location where
1638 * characters of the directionality equal to the base direction of the
1639 * paragraph are inserted. The weak cursor location is the location
1640 * where characters of the directionality opposite to the base
1641 * direction of the paragraph are inserted.
1643 * If @iter is %NULL, the actual cursor position is used.
1645 * Note that if @iter happens to be the actual cursor position, and
1646 * there is currently an IM preedit sequence being entered, the
1647 * returned locations will be adjusted to account for the preedit
1648 * cursor's offset within the preedit sequence.
1650 * The rectangle position is in buffer coordinates; use
1651 * gtk_text_view_buffer_to_window_coords() to convert these
1652 * coordinates to coordinates for one of the windows in the text view.
1657 gtk_text_view_get_cursor_locations (GtkTextView *text_view,
1658 const GtkTextIter *iter,
1659 GdkRectangle *strong,
1664 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1665 g_return_if_fail (iter == NULL ||
1666 gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1668 gtk_text_view_ensure_layout (text_view);
1673 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
1674 gtk_text_buffer_get_insert (get_buffer (text_view)));
1676 gtk_text_layout_get_cursor_locations (text_view->priv->layout, &insert,
1681 * gtk_text_view_get_iter_at_location:
1682 * @text_view: a #GtkTextView
1683 * @iter: (out): a #GtkTextIter
1684 * @x: x position, in buffer coordinates
1685 * @y: y position, in buffer coordinates
1687 * Retrieves the iterator at buffer coordinates @x and @y. Buffer
1688 * coordinates are coordinates for the entire buffer, not just the
1689 * currently-displayed portion. If you have coordinates from an
1690 * event, you have to convert those to buffer coordinates with
1691 * gtk_text_view_window_to_buffer_coords().
1694 gtk_text_view_get_iter_at_location (GtkTextView *text_view,
1699 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1700 g_return_if_fail (iter != NULL);
1702 gtk_text_view_ensure_layout (text_view);
1704 gtk_text_layout_get_iter_at_pixel (text_view->priv->layout,
1709 * gtk_text_view_get_iter_at_position:
1710 * @text_view: a #GtkTextView
1711 * @iter: (out): a #GtkTextIter
1712 * @trailing: (out) (allow-none): if non-%NULL, location to store an integer indicating where
1713 * in the grapheme the user clicked. It will either be
1714 * zero, or the number of characters in the grapheme.
1715 * 0 represents the trailing edge of the grapheme.
1716 * @x: x position, in buffer coordinates
1717 * @y: y position, in buffer coordinates
1719 * Retrieves the iterator pointing to the character at buffer
1720 * coordinates @x and @y. Buffer coordinates are coordinates for
1721 * the entire buffer, not just the currently-displayed portion.
1722 * If you have coordinates from an event, you have to convert
1723 * those to buffer coordinates with
1724 * gtk_text_view_window_to_buffer_coords().
1726 * Note that this is different from gtk_text_view_get_iter_at_location(),
1727 * which returns cursor locations, i.e. positions <emphasis>between</emphasis>
1733 gtk_text_view_get_iter_at_position (GtkTextView *text_view,
1739 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1740 g_return_if_fail (iter != NULL);
1742 gtk_text_view_ensure_layout (text_view);
1744 gtk_text_layout_get_iter_at_position (text_view->priv->layout,
1745 iter, trailing, x, y);
1749 * gtk_text_view_get_iter_location:
1750 * @text_view: a #GtkTextView
1751 * @iter: a #GtkTextIter
1752 * @location: (out): bounds of the character at @iter
1754 * Gets a rectangle which roughly contains the character at @iter.
1755 * The rectangle position is in buffer coordinates; use
1756 * gtk_text_view_buffer_to_window_coords() to convert these
1757 * coordinates to coordinates for one of the windows in the text view.
1760 gtk_text_view_get_iter_location (GtkTextView *text_view,
1761 const GtkTextIter *iter,
1762 GdkRectangle *location)
1764 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1765 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1767 gtk_text_view_ensure_layout (text_view);
1769 gtk_text_layout_get_iter_location (text_view->priv->layout, iter, location);
1773 * gtk_text_view_get_line_yrange:
1774 * @text_view: a #GtkTextView
1775 * @iter: a #GtkTextIter
1776 * @y: (out): return location for a y coordinate
1777 * @height: (out): return location for a height
1779 * Gets the y coordinate of the top of the line containing @iter,
1780 * and the height of the line. The coordinate is a buffer coordinate;
1781 * convert to window coordinates with gtk_text_view_buffer_to_window_coords().
1784 gtk_text_view_get_line_yrange (GtkTextView *text_view,
1785 const GtkTextIter *iter,
1789 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1790 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1792 gtk_text_view_ensure_layout (text_view);
1794 gtk_text_layout_get_line_yrange (text_view->priv->layout,
1801 * gtk_text_view_get_line_at_y:
1802 * @text_view: a #GtkTextView
1803 * @target_iter: (out): a #GtkTextIter
1804 * @y: a y coordinate
1805 * @line_top: (out): return location for top coordinate of the line
1807 * Gets the #GtkTextIter at the start of the line containing
1808 * the coordinate @y. @y is in buffer coordinates, convert from
1809 * window coordinates with gtk_text_view_window_to_buffer_coords().
1810 * If non-%NULL, @line_top will be filled with the coordinate of the top
1814 gtk_text_view_get_line_at_y (GtkTextView *text_view,
1815 GtkTextIter *target_iter,
1819 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1821 gtk_text_view_ensure_layout (text_view);
1823 gtk_text_layout_get_line_at_y (text_view->priv->layout,
1830 * gtk_text_view_scroll_to_iter:
1831 * @text_view: a #GtkTextView
1832 * @iter: a #GtkTextIter
1833 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1834 * @use_align: whether to use alignment arguments (if %FALSE,
1835 * just get the mark onscreen)
1836 * @xalign: horizontal alignment of mark within visible area
1837 * @yalign: vertical alignment of mark within visible area
1839 * Scrolls @text_view so that @iter is on the screen in the position
1840 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1841 * left or top, 1.0 indicates right or bottom, 0.5 means center.
1842 * If @use_align is %FALSE, the text scrolls the minimal distance to
1843 * get the mark onscreen, possibly not scrolling at all. The effective
1844 * screen for purposes of this function is reduced by a margin of size
1847 * Note that this function uses the currently-computed height of the
1848 * lines in the text buffer. Line heights are computed in an idle
1849 * handler; so this function may not have the desired effect if it's
1850 * called before the height computations. To avoid oddness, consider
1851 * using gtk_text_view_scroll_to_mark() which saves a point to be
1852 * scrolled to after line validation.
1854 * Return value: %TRUE if scrolling occurred
1857 gtk_text_view_scroll_to_iter (GtkTextView *text_view,
1859 gdouble within_margin,
1865 GdkRectangle screen;
1870 gboolean retval = FALSE;
1872 gint screen_xoffset, screen_yoffset;
1873 gint current_x_scroll, current_y_scroll;
1875 /* FIXME why don't we do the validate-at-scroll-destination thing
1876 * from flush_scroll in this function? I think it wasn't done before
1877 * because changed_handler was screwed up, but I could be wrong.
1880 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1881 g_return_val_if_fail (iter != NULL, FALSE);
1882 g_return_val_if_fail (within_margin >= 0.0 && within_margin < 0.5, FALSE);
1883 g_return_val_if_fail (xalign >= 0.0 && xalign <= 1.0, FALSE);
1884 g_return_val_if_fail (yalign >= 0.0 && yalign <= 1.0, FALSE);
1886 widget = GTK_WIDGET (text_view);
1888 DV(g_print(G_STRLOC"\n"));
1890 gtk_text_layout_get_iter_location (text_view->priv->layout,
1894 DV (g_print (" target rect %d,%d %d x %d\n", rect.x, rect.y, rect.width, rect.height));
1896 current_x_scroll = text_view->priv->xoffset;
1897 current_y_scroll = text_view->priv->yoffset;
1899 screen.x = current_x_scroll;
1900 screen.y = current_y_scroll;
1901 screen.width = SCREEN_WIDTH (widget);
1902 screen.height = SCREEN_HEIGHT (widget);
1904 screen_xoffset = screen.width * within_margin;
1905 screen_yoffset = screen.height * within_margin;
1907 screen.x += screen_xoffset;
1908 screen.y += screen_yoffset;
1909 screen.width -= screen_xoffset * 2;
1910 screen.height -= screen_yoffset * 2;
1912 /* paranoia check */
1913 if (screen.width < 1)
1915 if (screen.height < 1)
1918 /* The -1 here ensures that we leave enough space to draw the cursor
1919 * when this function is used for horizontal scrolling.
1921 screen_right = screen.x + screen.width - 1;
1922 screen_bottom = screen.y + screen.height;
1924 /* The alignment affects the point in the target character that we
1925 * choose to align. If we're doing right/bottom alignment, we align
1926 * the right/bottom edge of the character the mark is at; if we're
1927 * doing left/top we align the left/top edge of the character; if
1928 * we're doing center alignment we align the center of the
1932 /* Vertical scroll */
1935 scroll_dest = current_y_scroll;
1939 scroll_dest = rect.y + (rect.height * yalign) - (screen.height * yalign);
1941 /* if scroll_dest < screen.y, we move a negative increment (up),
1942 * else a positive increment (down)
1944 scroll_inc = scroll_dest - screen.y + screen_yoffset;
1948 /* move minimum to get onscreen */
1949 if (rect.y < screen.y)
1951 scroll_dest = rect.y;
1952 scroll_inc = scroll_dest - screen.y - screen_yoffset;
1954 else if ((rect.y + rect.height) > screen_bottom)
1956 scroll_dest = rect.y + rect.height;
1957 scroll_inc = scroll_dest - screen_bottom + screen_yoffset;
1961 if (scroll_inc != 0)
1963 gtk_adjustment_set_value (text_view->priv->vadjustment,
1964 current_y_scroll + scroll_inc);
1966 DV (g_print (" vert increment %d\n", scroll_inc));
1969 /* Horizontal scroll */
1972 scroll_dest = current_x_scroll;
1976 scroll_dest = rect.x + (rect.width * xalign) - (screen.width * xalign);
1978 /* if scroll_dest < screen.y, we move a negative increment (left),
1979 * else a positive increment (right)
1981 scroll_inc = scroll_dest - screen.x + screen_xoffset;
1985 /* move minimum to get onscreen */
1986 if (rect.x < screen.x)
1988 scroll_dest = rect.x;
1989 scroll_inc = scroll_dest - screen.x - screen_xoffset;
1991 else if ((rect.x + rect.width) > screen_right)
1993 scroll_dest = rect.x + rect.width;
1994 scroll_inc = scroll_dest - screen_right + screen_xoffset;
1998 if (scroll_inc != 0)
2000 gtk_adjustment_set_value (text_view->priv->hadjustment,
2001 current_x_scroll + scroll_inc);
2003 DV (g_print (" horiz increment %d\n", scroll_inc));
2006 retval = (current_y_scroll != gtk_adjustment_get_value (text_view->priv->vadjustment))
2007 || (current_x_scroll != gtk_adjustment_get_value (text_view->priv->hadjustment));
2011 DV(g_print (">Actually scrolled ("G_STRLOC")\n"));
2015 DV(g_print (">Didn't end up scrolling ("G_STRLOC")\n"));
2022 free_pending_scroll (GtkTextPendingScroll *scroll)
2024 if (!gtk_text_mark_get_deleted (scroll->mark))
2025 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark),
2027 g_object_unref (scroll->mark);
2032 cancel_pending_scroll (GtkTextView *text_view)
2034 if (text_view->priv->pending_scroll)
2036 free_pending_scroll (text_view->priv->pending_scroll);
2037 text_view->priv->pending_scroll = NULL;
2042 gtk_text_view_queue_scroll (GtkTextView *text_view,
2044 gdouble within_margin,
2050 GtkTextPendingScroll *scroll;
2052 DV(g_print(G_STRLOC"\n"));
2054 scroll = g_new (GtkTextPendingScroll, 1);
2056 scroll->within_margin = within_margin;
2057 scroll->use_align = use_align;
2058 scroll->xalign = xalign;
2059 scroll->yalign = yalign;
2061 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
2063 scroll->mark = gtk_text_buffer_create_mark (get_buffer (text_view),
2066 gtk_text_mark_get_left_gravity (mark));
2068 g_object_ref (scroll->mark);
2070 cancel_pending_scroll (text_view);
2072 text_view->priv->pending_scroll = scroll;
2076 gtk_text_view_flush_scroll (GtkTextView *text_view)
2078 GtkAllocation allocation;
2080 GtkTextPendingScroll *scroll;
2084 widget = GTK_WIDGET (text_view);
2086 DV(g_print(G_STRLOC"\n"));
2088 if (text_view->priv->pending_scroll == NULL)
2090 DV (g_print ("in flush scroll, no pending scroll\n"));
2094 scroll = text_view->priv->pending_scroll;
2096 /* avoid recursion */
2097 text_view->priv->pending_scroll = NULL;
2099 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, scroll->mark);
2101 /* Validate area around the scroll destination, so the adjustment
2102 * can meaningfully point into that area. We must validate
2103 * enough area to be sure that after we scroll, everything onscreen
2104 * is valid; otherwise, validation will maintain the first para
2105 * in one place, but may push the target iter off the bottom of
2108 DV(g_print (">Validating scroll destination ("G_STRLOC")\n"));
2109 gtk_widget_get_allocation (widget, &allocation);
2110 gtk_text_layout_validate_yrange (text_view->priv->layout, &iter,
2111 -(allocation.height * 2),
2112 allocation.height * 2);
2114 DV(g_print (">Done validating scroll destination ("G_STRLOC")\n"));
2116 /* Ensure we have updated width/height */
2117 gtk_text_view_update_adjustments (text_view);
2119 retval = gtk_text_view_scroll_to_iter (text_view,
2121 scroll->within_margin,
2126 free_pending_scroll (scroll);
2132 gtk_text_view_update_adjustments (GtkTextView *text_view)
2134 GtkTextViewPrivate *priv;
2135 gint width = 0, height = 0;
2137 DV(g_print(">Updating adjustments ("G_STRLOC")\n"));
2139 priv = text_view->priv;
2142 gtk_text_layout_get_size (priv->layout, &width, &height);
2144 /* Make room for the cursor after the last character in the widest line */
2145 width += SPACE_FOR_CURSOR;
2147 if (priv->width != width || priv->height != height)
2149 if (priv->width != width)
2150 priv->width_changed = TRUE;
2152 priv->width = width;
2153 priv->height = height;
2155 gtk_text_view_set_hadjustment_values (text_view);
2156 gtk_text_view_set_vadjustment_values (text_view);
2161 gtk_text_view_update_layout_width (GtkTextView *text_view)
2163 DV(g_print(">Updating layout width ("G_STRLOC")\n"));
2165 gtk_text_view_ensure_layout (text_view);
2167 gtk_text_layout_set_screen_width (text_view->priv->layout,
2168 MAX (1, SCREEN_WIDTH (text_view) - SPACE_FOR_CURSOR));
2172 gtk_text_view_update_im_spot_location (GtkTextView *text_view)
2176 if (text_view->priv->layout == NULL)
2179 gtk_text_view_get_cursor_locations (text_view, NULL, &area, NULL);
2181 area.x -= text_view->priv->xoffset;
2182 area.y -= text_view->priv->yoffset;
2184 /* Width returned by Pango indicates direction of cursor,
2185 * by its sign more than the size of cursor.
2189 gtk_im_context_set_cursor_location (text_view->priv->im_context, &area);
2193 do_update_im_spot_location (gpointer text_view)
2195 GtkTextViewPrivate *priv;
2197 priv = GTK_TEXT_VIEW (text_view)->priv;
2198 priv->im_spot_idle = 0;
2200 gtk_text_view_update_im_spot_location (text_view);
2205 queue_update_im_spot_location (GtkTextView *text_view)
2207 GtkTextViewPrivate *priv;
2209 priv = text_view->priv;
2211 /* Use priority a little higher than GTK_TEXT_VIEW_PRIORITY_VALIDATE,
2212 * so we don't wait until the entire buffer has been validated. */
2213 if (!priv->im_spot_idle)
2214 priv->im_spot_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE - 1,
2215 do_update_im_spot_location,
2221 flush_update_im_spot_location (GtkTextView *text_view)
2223 GtkTextViewPrivate *priv;
2225 priv = text_view->priv;
2227 if (priv->im_spot_idle)
2229 g_source_remove (priv->im_spot_idle);
2230 priv->im_spot_idle = 0;
2231 gtk_text_view_update_im_spot_location (text_view);
2236 * gtk_text_view_scroll_to_mark:
2237 * @text_view: a #GtkTextView
2238 * @mark: a #GtkTextMark
2239 * @within_margin: margin as a [0.0,0.5) fraction of screen size
2240 * @use_align: whether to use alignment arguments (if %FALSE, just
2241 * get the mark onscreen)
2242 * @xalign: horizontal alignment of mark within visible area
2243 * @yalign: vertical alignment of mark within visible area
2245 * Scrolls @text_view so that @mark is on the screen in the position
2246 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
2247 * left or top, 1.0 indicates right or bottom, 0.5 means center.
2248 * If @use_align is %FALSE, the text scrolls the minimal distance to
2249 * get the mark onscreen, possibly not scrolling at all. The effective
2250 * screen for purposes of this function is reduced by a margin of size
2254 gtk_text_view_scroll_to_mark (GtkTextView *text_view,
2256 gdouble within_margin,
2261 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2262 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2263 g_return_if_fail (within_margin >= 0.0 && within_margin < 0.5);
2264 g_return_if_fail (xalign >= 0.0 && xalign <= 1.0);
2265 g_return_if_fail (yalign >= 0.0 && yalign <= 1.0);
2267 /* We need to verify that the buffer contains the mark, otherwise this
2268 * can lead to data structure corruption later on.
2270 g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark));
2272 gtk_text_view_queue_scroll (text_view, mark,
2278 /* If no validation is pending, we need to go ahead and force an
2281 if (text_view->priv->layout &&
2282 gtk_text_layout_is_valid (text_view->priv->layout))
2283 gtk_text_view_flush_scroll (text_view);
2287 * gtk_text_view_scroll_mark_onscreen:
2288 * @text_view: a #GtkTextView
2289 * @mark: a mark in the buffer for @text_view
2291 * Scrolls @text_view the minimum distance such that @mark is contained
2292 * within the visible area of the widget.
2295 gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
2298 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2299 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2301 /* We need to verify that the buffer contains the mark, otherwise this
2302 * can lead to data structure corruption later on.
2304 g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark));
2306 gtk_text_view_scroll_to_mark (text_view, mark, 0.0, FALSE, 0.0, 0.0);
2310 clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter)
2312 GdkRectangle visible_rect;
2313 gtk_text_view_get_visible_rect (text_view, &visible_rect);
2315 return gtk_text_layout_clamp_iter_to_vrange (text_view->priv->layout, iter,
2317 visible_rect.y + visible_rect.height);
2321 * gtk_text_view_move_mark_onscreen:
2322 * @text_view: a #GtkTextView
2323 * @mark: a #GtkTextMark
2325 * Moves a mark within the buffer so that it's
2326 * located within the currently-visible text area.
2328 * Return value: %TRUE if the mark moved (wasn't already onscreen)
2331 gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
2336 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2337 g_return_val_if_fail (mark != NULL, FALSE);
2339 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
2341 if (clamp_iter_onscreen (text_view, &iter))
2343 gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter);
2351 * gtk_text_view_get_visible_rect:
2352 * @text_view: a #GtkTextView
2353 * @visible_rect: (out): rectangle to fill
2355 * Fills @visible_rect with the currently-visible
2356 * region of the buffer, in buffer coordinates. Convert to window coordinates
2357 * with gtk_text_view_buffer_to_window_coords().
2360 gtk_text_view_get_visible_rect (GtkTextView *text_view,
2361 GdkRectangle *visible_rect)
2365 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2367 widget = GTK_WIDGET (text_view);
2371 visible_rect->x = text_view->priv->xoffset;
2372 visible_rect->y = text_view->priv->yoffset;
2373 visible_rect->width = SCREEN_WIDTH (widget);
2374 visible_rect->height = SCREEN_HEIGHT (widget);
2376 DV(g_print(" visible rect: %d,%d %d x %d\n",
2379 visible_rect->width,
2380 visible_rect->height));
2385 * gtk_text_view_set_wrap_mode:
2386 * @text_view: a #GtkTextView
2387 * @wrap_mode: a #GtkWrapMode
2389 * Sets the line wrapping for the view.
2392 gtk_text_view_set_wrap_mode (GtkTextView *text_view,
2393 GtkWrapMode wrap_mode)
2395 GtkTextViewPrivate *priv;
2397 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2399 priv = text_view->priv;
2401 if (priv->wrap_mode != wrap_mode)
2403 priv->wrap_mode = wrap_mode;
2405 if (priv->layout && priv->layout->default_style)
2407 priv->layout->default_style->wrap_mode = wrap_mode;
2408 gtk_text_layout_default_style_changed (priv->layout);
2412 g_object_notify (G_OBJECT (text_view), "wrap-mode");
2416 * gtk_text_view_get_wrap_mode:
2417 * @text_view: a #GtkTextView
2419 * Gets the line wrapping for the view.
2421 * Return value: the line wrap setting
2424 gtk_text_view_get_wrap_mode (GtkTextView *text_view)
2426 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAP_NONE);
2428 return text_view->priv->wrap_mode;
2432 * gtk_text_view_set_editable:
2433 * @text_view: a #GtkTextView
2434 * @setting: whether it's editable
2436 * Sets the default editability of the #GtkTextView. You can override
2437 * this default setting with tags in the buffer, using the "editable"
2438 * attribute of tags.
2441 gtk_text_view_set_editable (GtkTextView *text_view,
2444 GtkTextViewPrivate *priv;
2446 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2448 priv = text_view->priv;
2449 setting = setting != FALSE;
2451 if (priv->editable != setting)
2455 gtk_text_view_reset_im_context(text_view);
2456 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
2457 gtk_im_context_focus_out (priv->im_context);
2460 priv->editable = setting;
2462 if (setting && gtk_widget_has_focus (GTK_WIDGET (text_view)))
2463 gtk_im_context_focus_in (priv->im_context);
2465 if (priv->layout && priv->layout->default_style)
2467 gtk_text_layout_set_overwrite_mode (priv->layout,
2468 priv->overwrite_mode && priv->editable);
2469 priv->layout->default_style->editable = priv->editable;
2470 gtk_text_layout_default_style_changed (priv->layout);
2473 g_object_notify (G_OBJECT (text_view), "editable");
2478 * gtk_text_view_get_editable:
2479 * @text_view: a #GtkTextView
2481 * Returns the default editability of the #GtkTextView. Tags in the
2482 * buffer may override this setting for some ranges of text.
2484 * Return value: whether text is editable by default
2487 gtk_text_view_get_editable (GtkTextView *text_view)
2489 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2491 return text_view->priv->editable;
2495 * gtk_text_view_set_pixels_above_lines:
2496 * @text_view: a #GtkTextView
2497 * @pixels_above_lines: pixels above paragraphs
2499 * Sets the default number of blank pixels above paragraphs in @text_view.
2500 * Tags in the buffer for @text_view may override the defaults.
2503 gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
2504 gint pixels_above_lines)
2506 GtkTextViewPrivate *priv;
2508 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2510 priv = text_view->priv;
2512 if (priv->pixels_above_lines != pixels_above_lines)
2514 priv->pixels_above_lines = pixels_above_lines;
2516 if (priv->layout && priv->layout->default_style)
2518 priv->layout->default_style->pixels_above_lines = pixels_above_lines;
2519 gtk_text_layout_default_style_changed (priv->layout);
2522 g_object_notify (G_OBJECT (text_view), "pixels-above-lines");
2527 * gtk_text_view_get_pixels_above_lines:
2528 * @text_view: a #GtkTextView
2530 * Gets the default number of pixels to put above paragraphs.
2532 * Return value: default number of pixels above paragraphs
2535 gtk_text_view_get_pixels_above_lines (GtkTextView *text_view)
2537 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2539 return text_view->priv->pixels_above_lines;
2543 * gtk_text_view_set_pixels_below_lines:
2544 * @text_view: a #GtkTextView
2545 * @pixels_below_lines: pixels below paragraphs
2547 * Sets the default number of pixels of blank space
2548 * to put below paragraphs in @text_view. May be overridden
2549 * by tags applied to @text_view's buffer.
2552 gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
2553 gint pixels_below_lines)
2555 GtkTextViewPrivate *priv;
2557 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2559 priv = text_view->priv;
2561 if (priv->pixels_below_lines != pixels_below_lines)
2563 priv->pixels_below_lines = pixels_below_lines;
2565 if (priv->layout && priv->layout->default_style)
2567 priv->layout->default_style->pixels_below_lines = pixels_below_lines;
2568 gtk_text_layout_default_style_changed (priv->layout);
2571 g_object_notify (G_OBJECT (text_view), "pixels-below-lines");
2576 * gtk_text_view_get_pixels_below_lines:
2577 * @text_view: a #GtkTextView
2579 * Gets the value set by gtk_text_view_set_pixels_below_lines().
2581 * Return value: default number of blank pixels below paragraphs
2584 gtk_text_view_get_pixels_below_lines (GtkTextView *text_view)
2586 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2588 return text_view->priv->pixels_below_lines;
2592 * gtk_text_view_set_pixels_inside_wrap:
2593 * @text_view: a #GtkTextView
2594 * @pixels_inside_wrap: default number of pixels between wrapped lines
2596 * Sets the default number of pixels of blank space to leave between
2597 * display/wrapped lines within a paragraph. May be overridden by
2598 * tags in @text_view's buffer.
2601 gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
2602 gint pixels_inside_wrap)
2604 GtkTextViewPrivate *priv;
2606 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2608 priv = text_view->priv;
2610 if (priv->pixels_inside_wrap != pixels_inside_wrap)
2612 priv->pixels_inside_wrap = pixels_inside_wrap;
2614 if (priv->layout && priv->layout->default_style)
2616 priv->layout->default_style->pixels_inside_wrap = pixels_inside_wrap;
2617 gtk_text_layout_default_style_changed (priv->layout);
2620 g_object_notify (G_OBJECT (text_view), "pixels-inside-wrap");
2625 * gtk_text_view_get_pixels_inside_wrap:
2626 * @text_view: a #GtkTextView
2628 * Gets the value set by gtk_text_view_set_pixels_inside_wrap().
2630 * Return value: default number of pixels of blank space between wrapped lines
2633 gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view)
2635 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2637 return text_view->priv->pixels_inside_wrap;
2641 * gtk_text_view_set_justification:
2642 * @text_view: a #GtkTextView
2643 * @justification: justification
2645 * Sets the default justification of text in @text_view.
2646 * Tags in the view's buffer may override the default.
2650 gtk_text_view_set_justification (GtkTextView *text_view,
2651 GtkJustification justification)
2653 GtkTextViewPrivate *priv;
2655 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2657 priv = text_view->priv;
2659 if (priv->justify != justification)
2661 priv->justify = justification;
2663 if (priv->layout && priv->layout->default_style)
2665 priv->layout->default_style->justification = justification;
2666 gtk_text_layout_default_style_changed (priv->layout);
2669 g_object_notify (G_OBJECT (text_view), "justification");
2674 * gtk_text_view_get_justification:
2675 * @text_view: a #GtkTextView
2677 * Gets the default justification of paragraphs in @text_view.
2678 * Tags in the buffer may override the default.
2680 * Return value: default justification
2683 gtk_text_view_get_justification (GtkTextView *text_view)
2685 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_JUSTIFY_LEFT);
2687 return text_view->priv->justify;
2691 * gtk_text_view_set_left_margin:
2692 * @text_view: a #GtkTextView
2693 * @left_margin: left margin in pixels
2695 * Sets the default left margin for text in @text_view.
2696 * Tags in the buffer may override the default.
2699 gtk_text_view_set_left_margin (GtkTextView *text_view,
2702 GtkTextViewPrivate *priv;
2704 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2706 priv = text_view->priv;
2708 if (priv->left_margin != left_margin)
2710 priv->left_margin = left_margin;
2712 if (priv->layout && priv->layout->default_style)
2714 priv->layout->default_style->left_margin = left_margin;
2715 gtk_text_layout_default_style_changed (priv->layout);
2718 g_object_notify (G_OBJECT (text_view), "left-margin");
2723 * gtk_text_view_get_left_margin:
2724 * @text_view: a #GtkTextView
2726 * Gets the default left margin size of paragraphs in the @text_view.
2727 * Tags in the buffer may override the default.
2729 * Return value: left margin in pixels
2732 gtk_text_view_get_left_margin (GtkTextView *text_view)
2734 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2736 return text_view->priv->left_margin;
2740 * gtk_text_view_set_right_margin:
2741 * @text_view: a #GtkTextView
2742 * @right_margin: right margin in pixels
2744 * Sets the default right margin for text in the text view.
2745 * Tags in the buffer may override the default.
2748 gtk_text_view_set_right_margin (GtkTextView *text_view,
2751 GtkTextViewPrivate *priv = text_view->priv;
2753 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2755 if (priv->right_margin != right_margin)
2757 priv->right_margin = right_margin;
2759 if (priv->layout && priv->layout->default_style)
2761 priv->layout->default_style->right_margin = right_margin;
2762 gtk_text_layout_default_style_changed (priv->layout);
2765 g_object_notify (G_OBJECT (text_view), "right-margin");
2770 * gtk_text_view_get_right_margin:
2771 * @text_view: a #GtkTextView
2773 * Gets the default right margin for text in @text_view. Tags
2774 * in the buffer may override the default.
2776 * Return value: right margin in pixels
2779 gtk_text_view_get_right_margin (GtkTextView *text_view)
2781 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2783 return text_view->priv->right_margin;
2787 * gtk_text_view_set_indent:
2788 * @text_view: a #GtkTextView
2789 * @indent: indentation in pixels
2791 * Sets the default indentation for paragraphs in @text_view.
2792 * Tags in the buffer may override the default.
2795 gtk_text_view_set_indent (GtkTextView *text_view,
2798 GtkTextViewPrivate *priv;
2800 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2802 priv = text_view->priv;
2804 if (priv->indent != indent)
2806 priv->indent = indent;
2808 if (priv->layout && priv->layout->default_style)
2810 priv->layout->default_style->indent = indent;
2811 gtk_text_layout_default_style_changed (priv->layout);
2814 g_object_notify (G_OBJECT (text_view), "indent");
2819 * gtk_text_view_get_indent:
2820 * @text_view: a #GtkTextView
2822 * Gets the default indentation of paragraphs in @text_view.
2823 * Tags in the view's buffer may override the default.
2824 * The indentation may be negative.
2826 * Return value: number of pixels of indentation
2829 gtk_text_view_get_indent (GtkTextView *text_view)
2831 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2833 return text_view->priv->indent;
2837 * gtk_text_view_set_tabs:
2838 * @text_view: a #GtkTextView
2839 * @tabs: tabs as a #PangoTabArray
2841 * Sets the default tab stops for paragraphs in @text_view.
2842 * Tags in the buffer may override the default.
2845 gtk_text_view_set_tabs (GtkTextView *text_view,
2846 PangoTabArray *tabs)
2848 GtkTextViewPrivate *priv;
2850 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2852 priv = text_view->priv;
2855 pango_tab_array_free (priv->tabs);
2857 priv->tabs = tabs ? pango_tab_array_copy (tabs) : NULL;
2859 if (priv->layout && priv->layout->default_style)
2861 /* some unkosher futzing in internal struct details... */
2862 if (priv->layout->default_style->tabs)
2863 pango_tab_array_free (priv->layout->default_style->tabs);
2865 priv->layout->default_style->tabs =
2866 priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL;
2868 gtk_text_layout_default_style_changed (priv->layout);
2871 g_object_notify (G_OBJECT (text_view), "tabs");
2875 * gtk_text_view_get_tabs:
2876 * @text_view: a #GtkTextView
2878 * Gets the default tabs for @text_view. Tags in the buffer may
2879 * override the defaults. The returned array will be %NULL if
2880 * "standard" (8-space) tabs are used. Free the return value
2881 * with pango_tab_array_free().
2883 * Return value: copy of default tab array, or %NULL if "standard"
2884 * tabs are used; must be freed with pango_tab_array_free().
2887 gtk_text_view_get_tabs (GtkTextView *text_view)
2889 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
2891 return text_view->priv->tabs ? pango_tab_array_copy (text_view->priv->tabs) : NULL;
2895 gtk_text_view_toggle_cursor_visible (GtkTextView *text_view)
2897 gtk_text_view_set_cursor_visible (text_view, !text_view->priv->cursor_visible);
2901 * gtk_text_view_set_cursor_visible:
2902 * @text_view: a #GtkTextView
2903 * @setting: whether to show the insertion cursor
2905 * Toggles whether the insertion point is displayed. A buffer with no editable
2906 * text probably shouldn't have a visible cursor, so you may want to turn
2910 gtk_text_view_set_cursor_visible (GtkTextView *text_view,
2913 GtkTextViewPrivate *priv;
2915 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2917 priv = text_view->priv;
2918 setting = (setting != FALSE);
2920 if (priv->cursor_visible != setting)
2922 priv->cursor_visible = setting;
2924 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
2928 gtk_text_layout_set_cursor_visible (priv->layout, setting);
2929 gtk_text_view_check_cursor_blink (text_view);
2933 g_object_notify (G_OBJECT (text_view), "cursor-visible");
2938 * gtk_text_view_get_cursor_visible:
2939 * @text_view: a #GtkTextView
2941 * Find out whether the cursor is being displayed.
2943 * Return value: whether the insertion mark is visible
2946 gtk_text_view_get_cursor_visible (GtkTextView *text_view)
2948 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2950 return text_view->priv->cursor_visible;
2955 * gtk_text_view_place_cursor_onscreen:
2956 * @text_view: a #GtkTextView
2958 * Moves the cursor to the currently visible region of the
2959 * buffer, it it isn't there already.
2961 * Return value: %TRUE if the cursor had to be moved.
2964 gtk_text_view_place_cursor_onscreen (GtkTextView *text_view)
2968 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2970 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
2971 gtk_text_buffer_get_insert (get_buffer (text_view)));
2973 if (clamp_iter_onscreen (text_view, &insert))
2975 gtk_text_buffer_place_cursor (get_buffer (text_view), &insert);
2983 gtk_text_view_remove_validate_idles (GtkTextView *text_view)
2985 GtkTextViewPrivate *priv = text_view->priv;
2987 if (priv->first_validate_idle != 0)
2989 DV (g_print ("Removing first validate idle: %s\n", G_STRLOC));
2990 g_source_remove (priv->first_validate_idle);
2991 priv->first_validate_idle = 0;
2994 if (priv->incremental_validate_idle != 0)
2996 g_source_remove (priv->incremental_validate_idle);
2997 priv->incremental_validate_idle = 0;
3002 gtk_text_view_destroy (GtkWidget *widget)
3004 GtkTextView *text_view;
3005 GtkTextViewPrivate *priv;
3007 text_view = GTK_TEXT_VIEW (widget);
3008 priv = text_view->priv;
3010 gtk_text_view_remove_validate_idles (text_view);
3011 gtk_text_view_set_buffer (text_view, NULL);
3012 gtk_text_view_destroy_layout (text_view);
3014 if (text_view->priv->scroll_timeout)
3016 g_source_remove (text_view->priv->scroll_timeout);
3017 text_view->priv->scroll_timeout = 0;
3020 if (priv->im_spot_idle)
3022 g_source_remove (priv->im_spot_idle);
3023 priv->im_spot_idle = 0;
3026 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->destroy (widget);
3030 gtk_text_view_finalize (GObject *object)
3032 GtkTextView *text_view;
3033 GtkTextViewPrivate *priv;
3035 text_view = GTK_TEXT_VIEW (object);
3036 priv = text_view->priv;
3038 gtk_text_view_destroy_layout (text_view);
3039 gtk_text_view_set_buffer (text_view, NULL);
3041 /* at this point, no "notify::buffer" handler should recreate the buffer. */
3042 g_assert (priv->buffer == NULL);
3044 cancel_pending_scroll (text_view);
3047 pango_tab_array_free (priv->tabs);
3049 if (priv->hadjustment)
3050 g_object_unref (priv->hadjustment);
3051 if (priv->vadjustment)
3052 g_object_unref (priv->vadjustment);
3054 text_window_free (priv->text_window);
3056 if (priv->left_window)
3057 text_window_free (priv->left_window);
3059 if (priv->top_window)
3060 text_window_free (priv->top_window);
3062 if (priv->right_window)
3063 text_window_free (priv->right_window);
3065 if (priv->bottom_window)
3066 text_window_free (priv->bottom_window);
3068 g_object_unref (priv->im_context);
3070 g_free (priv->im_module);
3072 G_OBJECT_CLASS (gtk_text_view_parent_class)->finalize (object);
3076 gtk_text_view_set_property (GObject *object,
3078 const GValue *value,
3081 GtkTextView *text_view;
3082 GtkTextViewPrivate *priv;
3084 text_view = GTK_TEXT_VIEW (object);
3085 priv = text_view->priv;
3089 case PROP_PIXELS_ABOVE_LINES:
3090 gtk_text_view_set_pixels_above_lines (text_view, g_value_get_int (value));
3093 case PROP_PIXELS_BELOW_LINES:
3094 gtk_text_view_set_pixels_below_lines (text_view, g_value_get_int (value));
3097 case PROP_PIXELS_INSIDE_WRAP:
3098 gtk_text_view_set_pixels_inside_wrap (text_view, g_value_get_int (value));
3102 gtk_text_view_set_editable (text_view, g_value_get_boolean (value));
3105 case PROP_WRAP_MODE:
3106 gtk_text_view_set_wrap_mode (text_view, g_value_get_enum (value));
3109 case PROP_JUSTIFICATION:
3110 gtk_text_view_set_justification (text_view, g_value_get_enum (value));
3113 case PROP_LEFT_MARGIN:
3114 gtk_text_view_set_left_margin (text_view, g_value_get_int (value));
3117 case PROP_RIGHT_MARGIN:
3118 gtk_text_view_set_right_margin (text_view, g_value_get_int (value));
3122 gtk_text_view_set_indent (text_view, g_value_get_int (value));
3126 gtk_text_view_set_tabs (text_view, g_value_get_boxed (value));
3129 case PROP_CURSOR_VISIBLE:
3130 gtk_text_view_set_cursor_visible (text_view, g_value_get_boolean (value));
3133 case PROP_OVERWRITE:
3134 gtk_text_view_set_overwrite (text_view, g_value_get_boolean (value));
3138 gtk_text_view_set_buffer (text_view, GTK_TEXT_BUFFER (g_value_get_object (value)));
3141 case PROP_ACCEPTS_TAB:
3142 gtk_text_view_set_accepts_tab (text_view, g_value_get_boolean (value));
3145 case PROP_IM_MODULE:
3146 g_free (priv->im_module);
3147 priv->im_module = g_value_dup_string (value);
3148 if (GTK_IS_IM_MULTICONTEXT (priv->im_context))
3149 gtk_im_multicontext_set_context_id (GTK_IM_MULTICONTEXT (priv->im_context), priv->im_module);
3152 case PROP_HADJUSTMENT:
3153 gtk_text_view_set_hadjustment (text_view, g_value_get_object (value));
3156 case PROP_VADJUSTMENT:
3157 gtk_text_view_set_vadjustment (text_view, g_value_get_object (value));
3160 case PROP_HSCROLL_POLICY:
3161 priv->hscroll_policy = g_value_get_enum (value);
3162 gtk_widget_queue_resize (GTK_WIDGET (text_view));
3165 case PROP_VSCROLL_POLICY:
3166 priv->vscroll_policy = g_value_get_enum (value);
3167 gtk_widget_queue_resize (GTK_WIDGET (text_view));
3171 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3177 gtk_text_view_get_property (GObject *object,
3182 GtkTextView *text_view;
3183 GtkTextViewPrivate *priv;
3185 text_view = GTK_TEXT_VIEW (object);
3186 priv = text_view->priv;
3190 case PROP_PIXELS_ABOVE_LINES:
3191 g_value_set_int (value, priv->pixels_above_lines);
3194 case PROP_PIXELS_BELOW_LINES:
3195 g_value_set_int (value, priv->pixels_below_lines);
3198 case PROP_PIXELS_INSIDE_WRAP:
3199 g_value_set_int (value, priv->pixels_inside_wrap);
3203 g_value_set_boolean (value, priv->editable);
3206 case PROP_WRAP_MODE:
3207 g_value_set_enum (value, priv->wrap_mode);
3210 case PROP_JUSTIFICATION:
3211 g_value_set_enum (value, priv->justify);
3214 case PROP_LEFT_MARGIN:
3215 g_value_set_int (value, priv->left_margin);
3218 case PROP_RIGHT_MARGIN:
3219 g_value_set_int (value, priv->right_margin);
3223 g_value_set_int (value, priv->indent);
3227 g_value_set_boxed (value, priv->tabs);
3230 case PROP_CURSOR_VISIBLE:
3231 g_value_set_boolean (value, priv->cursor_visible);
3235 g_value_set_object (value, get_buffer (text_view));
3238 case PROP_OVERWRITE:
3239 g_value_set_boolean (value, priv->overwrite_mode);
3242 case PROP_ACCEPTS_TAB:
3243 g_value_set_boolean (value, priv->accepts_tab);
3246 case PROP_IM_MODULE:
3247 g_value_set_string (value, priv->im_module);
3250 case PROP_HADJUSTMENT:
3251 g_value_set_object (value, priv->hadjustment);
3254 case PROP_VADJUSTMENT:
3255 g_value_set_object (value, priv->vadjustment);
3258 case PROP_HSCROLL_POLICY:
3259 g_value_set_enum (value, priv->hscroll_policy);
3262 case PROP_VSCROLL_POLICY:
3263 g_value_set_enum (value, priv->vscroll_policy);
3267 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3273 gtk_text_view_size_request (GtkWidget *widget,
3274 GtkRequisition *requisition)
3276 GtkTextView *text_view;
3277 GtkTextViewPrivate *priv;
3279 gint focus_edge_width;
3282 gboolean interior_focus;
3284 text_view = GTK_TEXT_VIEW (widget);
3285 priv = text_view->priv;
3287 gtk_widget_style_get (widget,
3288 "interior-focus", &interior_focus,
3289 "focus-line-width", &focus_width,
3293 focus_edge_width = 0;
3295 focus_edge_width = focus_width;
3299 priv->text_window->requisition.width = priv->layout->width;
3300 priv->text_window->requisition.height = priv->layout->height;
3304 priv->text_window->requisition.width = 0;
3305 priv->text_window->requisition.height = 0;
3308 requisition->width = priv->text_window->requisition.width + focus_edge_width * 2;
3309 requisition->height = priv->text_window->requisition.height + focus_edge_width * 2;
3311 if (priv->left_window)
3312 requisition->width += priv->left_window->requisition.width;
3314 if (priv->right_window)
3315 requisition->width += priv->right_window->requisition.width;
3317 if (priv->top_window)
3318 requisition->height += priv->top_window->requisition.height;
3320 if (priv->bottom_window)
3321 requisition->height += priv->bottom_window->requisition.height;
3323 border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view));
3324 requisition->width += border_width * 2;
3325 requisition->height += border_width * 2;
3327 tmp_list = priv->children;
3328 while (tmp_list != NULL)
3330 GtkTextViewChild *child = tmp_list->data;
3334 GtkRequisition child_req;
3335 GtkRequisition old_req;
3337 gtk_widget_get_preferred_size (child->widget, &old_req, NULL);
3339 gtk_widget_get_preferred_size (child->widget, &child_req, NULL);
3341 /* Invalidate layout lines if required */
3343 (old_req.width != child_req.width ||
3344 old_req.height != child_req.height))
3345 gtk_text_child_anchor_queue_resize (child->anchor,
3350 GtkRequisition child_req;
3352 gtk_widget_get_preferred_size (child->widget,
3356 tmp_list = g_slist_next (tmp_list);
3359 /* Cache the requested size of the text view so we can
3360 * compare it in the changed_handler() */
3361 priv->cached_size_request = *requisition;
3365 gtk_text_view_get_preferred_width (GtkWidget *widget,
3369 GtkRequisition requisition;
3371 gtk_text_view_size_request (widget, &requisition);
3373 *minimum = *natural = requisition.width;
3377 gtk_text_view_get_preferred_height (GtkWidget *widget,
3381 GtkRequisition requisition;
3383 gtk_text_view_size_request (widget, &requisition);
3385 *minimum = *natural = requisition.height;
3390 gtk_text_view_compute_child_allocation (GtkTextView *text_view,
3391 GtkTextViewChild *vc,
3392 GtkAllocation *allocation)
3398 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
3402 gtk_text_layout_get_line_yrange (text_view->priv->layout, &iter,
3405 buffer_y += vc->from_top_of_line;
3407 allocation->x = vc->from_left_of_buffer - text_view->priv->xoffset;
3408 allocation->y = buffer_y - text_view->priv->yoffset;
3410 gtk_widget_get_preferred_size (vc->widget, &req, NULL);
3411 allocation->width = req.width;
3412 allocation->height = req.height;
3416 gtk_text_view_update_child_allocation (GtkTextView *text_view,
3417 GtkTextViewChild *vc)
3419 GtkAllocation allocation;
3421 gtk_text_view_compute_child_allocation (text_view, vc, &allocation);
3423 gtk_widget_size_allocate (vc->widget, &allocation);
3426 g_print ("allocation for %p allocated to %d,%d yoffset = %d\n",
3428 vc->widget->allocation.x,
3429 vc->widget->allocation.y,
3430 text_view->priv->yoffset);
3435 gtk_text_view_child_allocated (GtkTextLayout *layout,
3441 GtkTextViewChild *vc = NULL;
3442 GtkTextView *text_view = data;
3444 /* x,y is the position of the child from the top of the line, and
3445 * from the left of the buffer. We have to translate that into text
3446 * window coordinates, then size_allocate the child.
3449 vc = g_object_get_data (G_OBJECT (child),
3450 "gtk-text-view-child");
3452 g_assert (vc != NULL);
3454 DV (g_print ("child allocated at %d,%d\n", x, y));
3456 vc->from_left_of_buffer = x;
3457 vc->from_top_of_line = y;
3459 gtk_text_view_update_child_allocation (text_view, vc);
3463 gtk_text_view_allocate_children (GtkTextView *text_view)
3467 DV(g_print(G_STRLOC"\n"));
3469 tmp_list = text_view->priv->children;
3470 while (tmp_list != NULL)
3472 GtkTextViewChild *child = tmp_list->data;
3474 g_assert (child != NULL);
3478 /* We need to force-validate the regions containing
3481 GtkTextIter child_loc;
3482 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
3486 /* Since anchored children are only ever allocated from
3487 * gtk_text_layout_get_line_display() we have to make sure
3488 * that the display line caching in the layout doesn't
3489 * get in the way. Invalidating the layout around the anchor
3492 if (_gtk_widget_get_alloc_needed (child->widget))
3494 GtkTextIter end = child_loc;
3495 gtk_text_iter_forward_char (&end);
3496 gtk_text_layout_invalidate (text_view->priv->layout, &child_loc, &end);
3499 gtk_text_layout_validate_yrange (text_view->priv->layout,
3505 GtkAllocation allocation;
3506 GtkRequisition child_req;
3508 allocation.x = child->x;
3509 allocation.y = child->y;
3511 gtk_widget_get_preferred_size (child->widget, &child_req, NULL);
3513 allocation.width = child_req.width;
3514 allocation.height = child_req.height;
3516 gtk_widget_size_allocate (child->widget, &allocation);
3519 tmp_list = g_slist_next (tmp_list);
3524 gtk_text_view_size_allocate (GtkWidget *widget,
3525 GtkAllocation *allocation)
3527 GtkAllocation widget_allocation;
3528 GtkTextView *text_view;
3529 GtkTextViewPrivate *priv;
3531 GdkRectangle text_rect;
3532 GdkRectangle left_rect;
3533 GdkRectangle right_rect;
3534 GdkRectangle top_rect;
3535 GdkRectangle bottom_rect;
3536 gint focus_edge_width;
3539 gboolean interior_focus;
3540 gboolean size_changed;
3542 text_view = GTK_TEXT_VIEW (widget);
3543 priv = text_view->priv;
3545 DV(g_print(G_STRLOC"\n"));
3547 gtk_widget_get_allocation (widget, &widget_allocation);
3549 widget_allocation.width != allocation->width ||
3550 widget_allocation.height != allocation->height;
3552 border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view));
3554 gtk_widget_set_allocation (widget, allocation);
3556 if (gtk_widget_get_realized (widget))
3558 gdk_window_move_resize (gtk_widget_get_window (widget),
3559 allocation->x, allocation->y,
3560 allocation->width, allocation->height);
3563 /* distribute width/height among child windows. Ensure all
3564 * windows get at least a 1x1 allocation.
3567 gtk_widget_style_get (widget,
3568 "interior-focus", &interior_focus,
3569 "focus-line-width", &focus_width,
3573 focus_edge_width = 0;
3575 focus_edge_width = focus_width;
3577 width = allocation->width - focus_edge_width * 2 - border_width * 2;
3579 if (priv->left_window)
3580 left_rect.width = priv->left_window->requisition.width;
3582 left_rect.width = 0;
3584 width -= left_rect.width;
3586 if (priv->right_window)
3587 right_rect.width = priv->right_window->requisition.width;
3589 right_rect.width = 0;
3591 width -= right_rect.width;
3593 text_rect.width = MAX (1, width);
3595 top_rect.width = text_rect.width;
3596 bottom_rect.width = text_rect.width;
3599 height = allocation->height - focus_edge_width * 2 - border_width * 2;
3601 if (priv->top_window)
3602 top_rect.height = priv->top_window->requisition.height;
3604 top_rect.height = 0;
3606 height -= top_rect.height;
3608 if (priv->bottom_window)
3609 bottom_rect.height = priv->bottom_window->requisition.height;
3611 bottom_rect.height = 0;
3613 height -= bottom_rect.height;
3615 text_rect.height = MAX (1, height);
3617 left_rect.height = text_rect.height;
3618 right_rect.height = text_rect.height;
3621 left_rect.x = focus_edge_width + border_width;
3622 top_rect.y = focus_edge_width + border_width;
3624 text_rect.x = left_rect.x + left_rect.width;
3625 text_rect.y = top_rect.y + top_rect.height;
3627 left_rect.y = text_rect.y;
3628 right_rect.y = text_rect.y;
3630 top_rect.x = text_rect.x;
3631 bottom_rect.x = text_rect.x;
3633 right_rect.x = text_rect.x + text_rect.width;
3634 bottom_rect.y = text_rect.y + text_rect.height;
3636 text_window_size_allocate (priv->text_window,
3639 if (priv->left_window)
3640 text_window_size_allocate (priv->left_window,
3643 if (priv->right_window)
3644 text_window_size_allocate (priv->right_window,
3647 if (priv->top_window)
3648 text_window_size_allocate (priv->top_window,
3651 if (priv->bottom_window)
3652 text_window_size_allocate (priv->bottom_window,
3655 gtk_text_view_update_layout_width (text_view);
3657 /* Note that this will do some layout validation */
3658 gtk_text_view_allocate_children (text_view);
3660 /* Update adjustments */
3661 gtk_text_view_set_hadjustment_values (text_view);
3662 gtk_text_view_set_vadjustment_values (text_view);
3664 /* The GTK resize loop processes all the pending exposes right
3665 * after doing the resize stuff, so the idle sizer won't have a
3666 * chance to run. So we do the work here.
3668 gtk_text_view_flush_first_validate (text_view);
3670 /* widget->window doesn't get auto-redrawn as the layout is computed, so has to
3673 if (size_changed && gtk_widget_get_realized (widget))
3674 gdk_window_invalidate_rect (gtk_widget_get_window (widget), NULL, FALSE);
3678 gtk_text_view_get_first_para_iter (GtkTextView *text_view,
3681 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter,
3682 text_view->priv->first_para_mark);
3686 gtk_text_view_validate_onscreen (GtkTextView *text_view)
3689 GtkTextViewPrivate *priv;
3691 widget = GTK_WIDGET (text_view);
3692 priv = text_view->priv;
3694 DV(g_print(">Validating onscreen ("G_STRLOC")\n"));
3696 if (SCREEN_HEIGHT (widget) > 0)
3698 GtkTextIter first_para;
3700 /* Be sure we've validated the stuff onscreen; if we
3701 * scrolled, these calls won't have any effect, because
3702 * they were called in the recursive validate_onscreen
3704 gtk_text_view_get_first_para_iter (text_view, &first_para);
3706 gtk_text_layout_validate_yrange (priv->layout,
3709 priv->first_para_pixels +
3710 SCREEN_HEIGHT (widget));
3713 priv->onscreen_validated = TRUE;
3715 DV(g_print(">Done validating onscreen, onscreen_validated = TRUE ("G_STRLOC")\n"));
3717 /* This can have the odd side effect of triggering a scroll, which should
3718 * flip "onscreen_validated" back to FALSE, but should also get us
3719 * back into this function to turn it on again.
3721 gtk_text_view_update_adjustments (text_view);
3723 g_assert (priv->onscreen_validated);
3727 gtk_text_view_flush_first_validate (GtkTextView *text_view)
3729 GtkTextViewPrivate *priv = text_view->priv;
3731 if (priv->first_validate_idle == 0)
3734 /* Do this first, which means that if an "invalidate"
3735 * occurs during any of this process, a new first_validate_callback
3736 * will be installed, and we'll start again.
3738 DV (g_print ("removing first validate in %s\n", G_STRLOC));
3739 g_source_remove (priv->first_validate_idle);
3740 priv->first_validate_idle = 0;
3742 /* be sure we have up-to-date screen size set on the
3745 gtk_text_view_update_layout_width (text_view);
3747 /* Bail out if we invalidated stuff; scrolling right away will just
3748 * confuse the issue.
3750 if (priv->first_validate_idle != 0)
3752 DV(g_print(">Width change forced requeue ("G_STRLOC")\n"));
3756 /* scroll to any marks, if that's pending. This can jump us to
3757 * the validation codepath used for scrolling onscreen, if so we
3758 * bail out. It won't jump if already in that codepath since
3759 * value_changed is not recursive, so also validate if
3762 if (!gtk_text_view_flush_scroll (text_view) ||
3763 !priv->onscreen_validated)
3764 gtk_text_view_validate_onscreen (text_view);
3766 DV(g_print(">Leaving first validate idle ("G_STRLOC")\n"));
3768 g_assert (priv->onscreen_validated);
3773 first_validate_callback (gpointer data)
3775 GtkTextView *text_view = data;
3777 /* Note that some of this code is duplicated at the end of size_allocate,
3778 * keep in sync with that.
3781 DV(g_print(G_STRLOC"\n"));
3783 gtk_text_view_flush_first_validate (text_view);
3789 incremental_validate_callback (gpointer data)
3791 GtkTextView *text_view = data;
3792 gboolean result = TRUE;
3794 DV(g_print(G_STRLOC"\n"));
3796 gtk_text_layout_validate (text_view->priv->layout, 2000);
3798 gtk_text_view_update_adjustments (text_view);
3800 if (gtk_text_layout_is_valid (text_view->priv->layout))
3802 text_view->priv->incremental_validate_idle = 0;
3810 gtk_text_view_invalidate (GtkTextView *text_view)
3812 GtkTextViewPrivate *priv = text_view->priv;
3814 DV (g_print (">Invalidate, onscreen_validated = %d now FALSE ("G_STRLOC")\n",
3815 priv->onscreen_validated));
3817 priv->onscreen_validated = FALSE;
3819 /* We'll invalidate when the layout is created */
3820 if (priv->layout == NULL)
3823 if (!priv->first_validate_idle)
3825 priv->first_validate_idle = gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
3826 DV (g_print (G_STRLOC": adding first validate idle %d\n",
3827 priv->first_validate_idle));
3830 if (!priv->incremental_validate_idle)
3832 priv->incremental_validate_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
3833 DV (g_print (G_STRLOC": adding incremental validate idle %d\n",
3834 priv->incremental_validate_idle));
3839 invalidated_handler (GtkTextLayout *layout,
3842 GtkTextView *text_view;
3844 text_view = GTK_TEXT_VIEW (data);
3846 DV (g_print ("Invalidating due to layout invalidate signal\n"));
3847 gtk_text_view_invalidate (text_view);
3851 changed_handler (GtkTextLayout *layout,
3857 GtkTextView *text_view;
3858 GtkTextViewPrivate *priv;
3860 GdkRectangle visible_rect;
3861 GdkRectangle redraw_rect;
3863 text_view = GTK_TEXT_VIEW (data);
3864 priv = text_view->priv;
3865 widget = GTK_WIDGET (data);
3867 DV(g_print(">Lines Validated ("G_STRLOC")\n"));
3869 if (gtk_widget_get_realized (widget))
3871 gtk_text_view_get_visible_rect (text_view, &visible_rect);
3873 redraw_rect.x = visible_rect.x;
3874 redraw_rect.width = visible_rect.width;
3875 redraw_rect.y = start_y;
3877 if (old_height == new_height)
3878 redraw_rect.height = old_height;
3879 else if (start_y + old_height > visible_rect.y)
3880 redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y);
3882 redraw_rect.height = 0;
3884 if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect))
3886 /* text_window_invalidate_rect() takes buffer coordinates */
3887 text_window_invalidate_rect (priv->text_window,
3890 DV(g_print(" invalidated rect: %d,%d %d x %d\n",
3894 redraw_rect.height));
3896 if (priv->left_window)
3897 text_window_invalidate_rect (priv->left_window,
3899 if (priv->right_window)
3900 text_window_invalidate_rect (priv->right_window,
3902 if (priv->top_window)
3903 text_window_invalidate_rect (priv->top_window,
3905 if (priv->bottom_window)
3906 text_window_invalidate_rect (priv->bottom_window,
3909 queue_update_im_spot_location (text_view);
3913 if (old_height != new_height)
3916 int new_first_para_top;
3917 int old_first_para_top;
3920 /* If the bottom of the old area was above the top of the
3921 * screen, we need to scroll to keep the current top of the
3922 * screen in place. Remember that first_para_pixels is the
3923 * position of the top of the screen in coordinates relative to
3924 * the first paragraph onscreen.
3926 * In short we are adding the height delta of the portion of the
3927 * changed region above first_para_mark to priv->yoffset.
3929 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first,
3930 priv->first_para_mark);
3932 gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL);
3934 old_first_para_top = priv->yoffset - priv->first_para_pixels;
3936 if (new_first_para_top != old_first_para_top)
3938 priv->yoffset += new_first_para_top - old_first_para_top;
3940 gtk_adjustment_set_value (text_view->priv->vadjustment, priv->yoffset);
3943 /* FIXME be smarter about which anchored widgets we update */
3945 tmp_list = priv->children;
3946 while (tmp_list != NULL)
3948 GtkTextViewChild *child = tmp_list->data;
3951 gtk_text_view_update_child_allocation (text_view, child);
3953 tmp_list = g_slist_next (tmp_list);
3958 GtkRequisition old_req = priv->cached_size_request;
3959 GtkRequisition new_req;
3961 /* Use this instead of gtk_widget_size_request wrapper
3962 * to avoid the optimization which just returns widget->requisition
3963 * if a resize hasn't been queued.
3965 gtk_text_view_size_request (widget, &new_req);
3967 if (old_req.width != new_req.width ||
3968 old_req.height != new_req.height)
3970 gtk_widget_queue_resize_no_redraw (widget);
3976 gtk_text_view_realize (GtkWidget *widget)
3978 GtkAllocation allocation;
3979 GtkTextView *text_view;
3980 GtkTextViewPrivate *priv;
3981 GtkStyleContext *context;
3982 GtkStateFlags state;
3984 GdkWindowAttr attributes;
3985 gint attributes_mask;
3989 text_view = GTK_TEXT_VIEW (widget);
3990 priv = text_view->priv;
3992 gtk_widget_set_realized (widget, TRUE);
3994 gtk_widget_get_allocation (widget, &allocation);
3996 attributes.window_type = GDK_WINDOW_CHILD;
3997 attributes.x = allocation.x;
3998 attributes.y = allocation.y;
3999 attributes.width = allocation.width;
4000 attributes.height = allocation.height;
4001 attributes.wclass = GDK_INPUT_OUTPUT;
4002 attributes.visual = gtk_widget_get_visual (widget);
4003 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK;
4005 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
4007 window = gdk_window_new (gtk_widget_get_parent_window (widget),
4008 &attributes, attributes_mask);
4009 gtk_widget_set_window (widget, window);
4010 gdk_window_set_user_data (window, widget);
4012 context = gtk_widget_get_style_context (widget);
4013 state = gtk_widget_get_state_flags (widget);
4015 gtk_style_context_get_background_color (context, state, &color);
4016 gdk_window_set_background_rgba (window, &color);
4018 text_window_realize (priv->text_window, widget);
4020 if (priv->left_window)
4021 text_window_realize (priv->left_window, widget);
4023 if (priv->top_window)
4024 text_window_realize (priv->top_window, widget);
4026 if (priv->right_window)
4027 text_window_realize (priv->right_window, widget);
4029 if (priv->bottom_window)
4030 text_window_realize (priv->bottom_window, widget);
4032 gtk_text_view_ensure_layout (text_view);
4033 gtk_text_view_invalidate (text_view);
4037 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
4038 GDK_SELECTION_PRIMARY);
4039 gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard);
4042 tmp_list = priv->children;
4043 while (tmp_list != NULL)
4045 GtkTextViewChild *vc = tmp_list->data;
4047 text_view_child_set_parent_window (text_view, vc);
4049 tmp_list = tmp_list->next;
4052 /* Ensure updating the spot location. */
4053 gtk_text_view_update_im_spot_location (text_view);
4057 gtk_text_view_unrealize (GtkWidget *widget)
4059 GtkTextView *text_view;
4060 GtkTextViewPrivate *priv;
4062 text_view = GTK_TEXT_VIEW (widget);
4063 priv = text_view->priv;
4067 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
4068 GDK_SELECTION_PRIMARY);
4069 gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard);
4072 gtk_text_view_remove_validate_idles (text_view);
4074 if (priv->popup_menu)
4076 gtk_widget_destroy (priv->popup_menu);
4077 priv->popup_menu = NULL;
4080 text_window_unrealize (priv->text_window);
4082 if (priv->left_window)
4083 text_window_unrealize (priv->left_window);
4085 if (priv->top_window)
4086 text_window_unrealize (priv->top_window);
4088 if (priv->right_window)
4089 text_window_unrealize (priv->right_window);
4091 if (priv->bottom_window)
4092 text_window_unrealize (priv->bottom_window);
4094 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->unrealize (widget);
4098 gtk_text_view_set_background (GtkTextView *text_view)
4100 GtkStyleContext *context;
4101 GtkStateFlags state;
4103 GtkTextViewPrivate *priv;
4106 widget = GTK_WIDGET (text_view);
4107 priv = text_view->priv;
4109 context = gtk_widget_get_style_context (widget);
4110 state = gtk_widget_get_state_flags (widget);
4112 /* Set bin window background */
4113 gtk_style_context_save (context);
4114 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
4116 gtk_style_context_get_background_color (context, state, &color);
4117 gdk_window_set_background_rgba (priv->text_window->bin_window, &color);
4119 gtk_style_context_restore (context);
4121 /* Set lateral panes background */
4122 gtk_style_context_get_background_color (context, state, &color);
4124 gdk_window_set_background_rgba (gtk_widget_get_window (widget), &color);
4126 if (priv->left_window)
4127 gdk_window_set_background_rgba (priv->left_window->bin_window, &color);
4129 if (priv->right_window)
4130 gdk_window_set_background_rgba (priv->right_window->bin_window, &color);
4132 if (priv->top_window)
4133 gdk_window_set_background_rgba (priv->top_window->bin_window, &color);
4135 if (priv->bottom_window)
4136 gdk_window_set_background_rgba (priv->bottom_window->bin_window, &color);
4140 gtk_text_view_style_updated (GtkWidget *widget)
4142 GtkTextView *text_view;
4143 GtkTextViewPrivate *priv;
4144 PangoContext *ltr_context, *rtl_context;
4146 text_view = GTK_TEXT_VIEW (widget);
4147 priv = text_view->priv;
4149 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->style_updated (widget);
4151 if (gtk_widget_get_realized (widget))
4153 gtk_text_view_set_background (text_view);
4156 if (priv->layout && priv->layout->default_style)
4158 gtk_text_view_set_attributes_from_style (text_view,
4159 priv->layout->default_style);
4161 ltr_context = gtk_widget_create_pango_context (widget);
4162 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
4163 rtl_context = gtk_widget_create_pango_context (widget);
4164 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
4166 gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context);
4168 g_object_unref (ltr_context);
4169 g_object_unref (rtl_context);
4174 gtk_text_view_direction_changed (GtkWidget *widget,
4175 GtkTextDirection previous_direction)
4177 GtkTextViewPrivate *priv = GTK_TEXT_VIEW (widget)->priv;
4179 if (priv->layout && priv->layout->default_style)
4181 priv->layout->default_style->direction = gtk_widget_get_direction (widget);
4183 gtk_text_layout_default_style_changed (priv->layout);
4188 gtk_text_view_state_flags_changed (GtkWidget *widget,
4189 GtkStateFlags previous_state)
4191 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
4194 if (gtk_widget_get_realized (widget))
4196 gtk_text_view_set_background (text_view);
4198 if (gtk_widget_is_sensitive (widget))
4199 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), GDK_XTERM);
4203 gdk_window_set_cursor (text_view->priv->text_window->bin_window, cursor);
4206 g_object_unref (cursor);
4208 text_view->priv->mouse_cursor_obscured = FALSE;
4211 if (!gtk_widget_is_sensitive (widget))
4213 /* Clear any selection */
4214 gtk_text_view_unselect (text_view);
4217 gtk_widget_queue_draw (widget);
4221 set_invisible_cursor (GdkWindow *window)
4223 GdkDisplay *display;
4226 display = gdk_window_get_display (window);
4227 cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR);
4229 gdk_window_set_cursor (window, cursor);
4231 g_object_unref (cursor);
4235 gtk_text_view_obscure_mouse_cursor (GtkTextView *text_view)
4237 if (text_view->priv->mouse_cursor_obscured)
4240 set_invisible_cursor (text_view->priv->text_window->bin_window);
4242 text_view->priv->mouse_cursor_obscured = TRUE;
4246 gtk_text_view_unobscure_mouse_cursor (GtkTextView *text_view)
4248 if (text_view->priv->mouse_cursor_obscured)
4252 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)),
4254 gdk_window_set_cursor (text_view->priv->text_window->bin_window, cursor);
4255 g_object_unref (cursor);
4256 text_view->priv->mouse_cursor_obscured = FALSE;
4261 gtk_text_view_grab_notify (GtkWidget *widget,
4262 gboolean was_grabbed)
4264 GtkTextViewPrivate *priv;
4266 priv = GTK_TEXT_VIEW (widget)->priv;
4268 if (priv->grab_device &&
4269 gtk_widget_device_is_shadowed (widget, priv->grab_device))
4271 gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget));
4272 gtk_text_view_unobscure_mouse_cursor (GTK_TEXT_VIEW (widget));
4282 get_event_coordinates (GdkEvent *event, gint *x, gint *y)
4285 switch (event->type)
4287 case GDK_MOTION_NOTIFY:
4288 *x = event->motion.x;
4289 *y = event->motion.y;
4293 case GDK_BUTTON_PRESS:
4294 case GDK_2BUTTON_PRESS:
4295 case GDK_3BUTTON_PRESS:
4296 case GDK_BUTTON_RELEASE:
4297 *x = event->button.x;
4298 *y = event->button.y;
4303 case GDK_KEY_RELEASE:
4304 case GDK_ENTER_NOTIFY:
4305 case GDK_LEAVE_NOTIFY:
4306 case GDK_PROPERTY_NOTIFY:
4307 case GDK_SELECTION_CLEAR:
4308 case GDK_SELECTION_REQUEST:
4309 case GDK_SELECTION_NOTIFY:
4310 case GDK_PROXIMITY_IN:
4311 case GDK_PROXIMITY_OUT:
4312 case GDK_DRAG_ENTER:
4313 case GDK_DRAG_LEAVE:
4314 case GDK_DRAG_MOTION:
4315 case GDK_DRAG_STATUS:
4316 case GDK_DROP_START:
4317 case GDK_DROP_FINISHED:
4327 emit_event_on_tags (GtkWidget *widget,
4333 gboolean retval = FALSE;
4335 tags = gtk_text_iter_get_tags (iter);
4340 GtkTextTag *tag = tmp->data;
4342 if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter))
4348 tmp = g_slist_next (tmp);
4351 g_slist_free (tags);
4357 gtk_text_view_event (GtkWidget *widget, GdkEvent *event)
4359 GtkTextView *text_view;
4360 GtkTextViewPrivate *priv;
4363 text_view = GTK_TEXT_VIEW (widget);
4364 priv = text_view->priv;
4366 if (priv->layout == NULL ||
4367 get_buffer (text_view) == NULL)
4370 if (event->any.window != priv->text_window->bin_window)
4373 if (get_event_coordinates (event, &x, &y))
4380 /* FIXME this is slow and we do it twice per event.
4381 * My favorite solution is to have GtkTextLayout cache
4382 * the last couple lookups.
4384 gtk_text_layout_get_iter_at_pixel (priv->layout,
4388 return emit_event_on_tags (widget, event, &iter);
4390 else if (event->type == GDK_KEY_PRESS ||
4391 event->type == GDK_KEY_RELEASE)
4395 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter,
4396 gtk_text_buffer_get_insert (get_buffer (text_view)));
4398 return emit_event_on_tags (widget, event, &iter);
4405 gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
4407 GtkTextView *text_view;
4408 GtkTextViewPrivate *priv;
4409 GtkTextMark *insert;
4411 gboolean can_insert;
4412 gboolean retval = FALSE;
4413 gboolean obscure = FALSE;
4415 text_view = GTK_TEXT_VIEW (widget);
4416 priv = text_view->priv;
4418 if (priv->layout == NULL ||
4419 get_buffer (text_view) == NULL)
4422 /* Make sure input method knows where it is */
4423 flush_update_im_spot_location (text_view);
4425 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
4426 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
4427 can_insert = gtk_text_iter_can_insert (&iter, priv->editable);
4428 if (gtk_im_context_filter_keypress (priv->im_context, event))
4430 priv->need_im_reset = TRUE;
4432 gtk_text_view_reset_im_context (text_view);
4433 obscure = can_insert;
4437 else if (GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_press_event (widget, event))
4441 /* use overall editability not can_insert, more predictable for users */
4442 else if (priv->editable &&
4443 (event->keyval == GDK_KEY_Return ||
4444 event->keyval == GDK_KEY_ISO_Enter ||
4445 event->keyval == GDK_KEY_KP_Enter))
4447 /* this won't actually insert the newline if the cursor isn't
4450 gtk_text_view_reset_im_context (text_view);
4451 gtk_text_view_commit_text (text_view, "\n");
4456 /* Pass through Tab as literal tab, unless Control is held down */
4457 else if ((event->keyval == GDK_KEY_Tab ||
4458 event->keyval == GDK_KEY_KP_Tab ||
4459 event->keyval == GDK_KEY_ISO_Left_Tab) &&
4460 !(event->state & GDK_CONTROL_MASK))
4462 /* If the text widget isn't editable overall, or if the application
4463 * has turned off "accepts_tab", move the focus instead
4465 if (priv->accepts_tab && priv->editable)
4467 gtk_text_view_reset_im_context (text_view);
4468 gtk_text_view_commit_text (text_view, "\t");
4472 g_signal_emit_by_name (text_view, "move-focus",
4473 (event->state & GDK_SHIFT_MASK) ?
4474 GTK_DIR_TAB_BACKWARD : GTK_DIR_TAB_FORWARD);
4482 gtk_text_view_obscure_mouse_cursor (text_view);
4484 gtk_text_view_reset_blink_time (text_view);
4485 gtk_text_view_pend_cursor_blink (text_view);
4491 gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
4493 GtkTextView *text_view;
4494 GtkTextViewPrivate *priv;
4495 GtkTextMark *insert;
4498 text_view = GTK_TEXT_VIEW (widget);
4499 priv = text_view->priv;
4501 if (priv->layout == NULL || get_buffer (text_view) == NULL)
4504 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
4505 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
4506 if (gtk_text_iter_can_insert (&iter, priv->editable) &&
4507 gtk_im_context_filter_keypress (priv->im_context, event))
4509 priv->need_im_reset = TRUE;
4513 return GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_release_event (widget, event);
4517 gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
4519 GtkTextView *text_view;
4520 GtkTextViewPrivate *priv;
4522 text_view = GTK_TEXT_VIEW (widget);
4523 priv = text_view->priv;
4525 gtk_widget_grab_focus (widget);
4527 if (event->window != priv->text_window->bin_window)
4529 /* Remove selection if any. */
4530 gtk_text_view_unselect (text_view);
4534 gtk_text_view_reset_blink_time (text_view);
4538 if (event->button == 3 && (event->state & GDK_CONTROL_MASK) != 0)
4539 _gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer);
4540 else if (event->button == 3)
4541 gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout);
4544 if (event->type == GDK_BUTTON_PRESS)
4546 gtk_text_view_reset_im_context (text_view);
4548 if (gdk_event_triggers_context_menu ((GdkEvent *) event))
4550 gtk_text_view_do_popup (text_view, event);
4553 else if (event->button == 1)
4555 /* If we're in the selection, start a drag copy/move of the
4556 * selection; otherwise, start creating a new selection.
4559 GtkTextIter start, end;
4561 gtk_text_layout_get_iter_at_pixel (priv->layout,
4563 event->x + priv->xoffset,
4564 event->y + priv->yoffset);
4566 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
4568 gtk_text_iter_in_range (&iter, &start, &end) &&
4570 gtk_widget_get_modifier_mask (widget,
4571 GDK_MODIFIER_INTENT_EXTEND_SELECTION)))
4573 priv->drag_start_x = event->x;
4574 priv->drag_start_y = event->y;
4575 priv->pending_place_cursor_button = event->button;
4579 gtk_text_view_start_selection_drag (text_view, &iter, event);
4584 else if (event->button == 2)
4588 /* We do not want to scroll back to the insert iter when we paste
4589 with the middle button */
4590 priv->scroll_after_paste = FALSE;
4592 gtk_text_layout_get_iter_at_pixel (priv->layout,
4594 event->x + priv->xoffset,
4595 event->y + priv->yoffset);
4597 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
4598 gtk_widget_get_clipboard (widget, GDK_SELECTION_PRIMARY),
4604 else if ((event->type == GDK_2BUTTON_PRESS ||
4605 event->type == GDK_3BUTTON_PRESS) &&
4610 gtk_text_view_end_selection_drag (text_view);
4612 gtk_text_layout_get_iter_at_pixel (priv->layout,
4614 event->x + priv->xoffset,
4615 event->y + priv->yoffset);
4617 gtk_text_view_start_selection_drag (text_view, &iter, event);
4625 gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
4627 GtkTextView *text_view;
4628 GtkTextViewPrivate *priv;
4630 text_view = GTK_TEXT_VIEW (widget);
4631 priv = text_view->priv;
4633 if (event->window != priv->text_window->bin_window)
4636 if (event->button == 1)
4638 if (priv->drag_start_x >= 0)
4640 priv->drag_start_x = -1;
4641 priv->drag_start_y = -1;
4644 if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget)))
4646 else if (priv->pending_place_cursor_button == event->button)
4650 /* Unselect everything; we clicked inside selection, but
4651 * didn't move by the drag threshold, so just clear selection
4654 gtk_text_layout_get_iter_at_pixel (priv->layout,
4656 event->x + priv->xoffset,
4657 event->y + priv->yoffset);
4659 gtk_text_buffer_place_cursor (get_buffer (text_view), &iter);
4660 gtk_text_view_check_cursor_blink (text_view);
4662 priv->pending_place_cursor_button = 0;
4672 keymap_direction_changed (GdkKeymap *keymap,
4673 GtkTextView *text_view)
4675 gtk_text_view_check_keymap_direction (text_view);
4679 gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
4681 GtkTextView *text_view;
4682 GtkTextViewPrivate *priv;
4684 text_view = GTK_TEXT_VIEW (widget);
4685 priv = text_view->priv;
4687 gtk_widget_queue_draw (widget);
4689 DV(g_print (G_STRLOC": focus_in_event\n"));
4691 gtk_text_view_reset_blink_time (text_view);
4693 if (priv->cursor_visible && priv->layout)
4695 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
4696 gtk_text_view_check_cursor_blink (text_view);
4699 g_signal_connect (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4700 "direction-changed",
4701 G_CALLBACK (keymap_direction_changed), text_view);
4702 gtk_text_view_check_keymap_direction (text_view);
4706 priv->need_im_reset = TRUE;
4707 gtk_im_context_focus_in (priv->im_context);
4714 gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event)
4716 GtkTextView *text_view;
4717 GtkTextViewPrivate *priv;
4719 text_view = GTK_TEXT_VIEW (widget);
4720 priv = text_view->priv;
4722 gtk_text_view_end_selection_drag (text_view);
4724 gtk_widget_queue_draw (widget);
4726 DV(g_print (G_STRLOC": focus_out_event\n"));
4728 if (priv->cursor_visible && priv->layout)
4730 gtk_text_view_check_cursor_blink (text_view);
4731 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
4734 g_signal_handlers_disconnect_by_func (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4735 keymap_direction_changed,
4740 priv->need_im_reset = TRUE;
4741 gtk_im_context_focus_out (priv->im_context);
4748 gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event)
4750 GtkTextView *text_view;
4751 GtkTextViewPrivate *priv;
4753 text_view = GTK_TEXT_VIEW (widget);
4754 priv = text_view->priv;
4756 gtk_text_view_unobscure_mouse_cursor (text_view);
4758 if (event->window == priv->text_window->bin_window &&
4759 priv->drag_start_x >= 0)
4764 gdk_event_request_motions (event);
4766 if (gtk_drag_check_threshold (widget,
4772 gint buffer_x, buffer_y;
4774 gtk_text_view_window_to_buffer_coords (text_view,
4775 GTK_TEXT_WINDOW_TEXT,
4781 gtk_text_layout_get_iter_at_pixel (priv->layout,
4783 buffer_x, buffer_y);
4785 gtk_text_view_start_selection_dnd (text_view, &iter, event);
4794 gtk_text_view_paint (GtkWidget *widget,
4797 GtkTextView *text_view;
4798 GtkTextViewPrivate *priv;
4799 GList *child_exposes;
4802 text_view = GTK_TEXT_VIEW (widget);
4803 priv = text_view->priv;
4805 g_return_if_fail (priv->layout != NULL);
4806 g_return_if_fail (priv->xoffset >= 0);
4807 g_return_if_fail (priv->yoffset >= 0);
4809 while (priv->first_validate_idle != 0)
4811 DV (g_print (G_STRLOC": first_validate_idle: %d\n",
4812 priv->first_validate_idle));
4813 gtk_text_view_flush_first_validate (text_view);
4816 if (!priv->onscreen_validated)
4818 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.");
4819 g_assert_not_reached ();
4823 printf ("painting %d,%d %d x %d\n",
4825 area->width, area->height);
4828 child_exposes = NULL;
4831 cairo_translate (cr, -priv->xoffset, -priv->yoffset);
4833 gtk_text_layout_draw (priv->layout,
4840 tmp_list = child_exposes;
4841 while (tmp_list != NULL)
4843 GtkWidget *child = tmp_list->data;
4845 gtk_container_propagate_draw (GTK_CONTAINER (text_view),
4849 g_object_unref (child);
4851 tmp_list = tmp_list->next;
4854 g_list_free (child_exposes);
4858 gtk_text_view_draw (GtkWidget *widget,
4864 if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget)))
4865 gtk_text_view_draw_focus (widget, cr);
4867 window = gtk_text_view_get_window (GTK_TEXT_VIEW (widget),
4868 GTK_TEXT_WINDOW_TEXT);
4869 if (gtk_cairo_should_draw_window (cr, window))
4871 DV(g_print (">Exposed ("G_STRLOC")\n"));
4873 gtk_cairo_transform_to_window (cr, widget, window);
4874 gtk_text_view_paint (widget, cr);
4878 /* Propagate exposes to all unanchored children.
4879 * Anchored children are handled in gtk_text_view_paint().
4881 tmp_list = GTK_TEXT_VIEW (widget)->priv->children;
4882 while (tmp_list != NULL)
4884 GtkTextViewChild *vc = tmp_list->data;
4886 /* propagate_draw checks that event->window matches
4890 gtk_container_propagate_draw (GTK_CONTAINER (widget),
4894 tmp_list = tmp_list->next;
4901 gtk_text_view_draw_focus (GtkWidget *widget,
4904 gboolean interior_focus;
4906 /* We clear the focus if we are in interior focus mode. */
4907 gtk_widget_style_get (widget,
4908 "interior-focus", &interior_focus,
4911 if (gtk_widget_has_visible_focus (widget) && !interior_focus)
4913 GtkStyleContext *context;
4915 context = gtk_widget_get_style_context (widget);
4917 gtk_render_focus (context, cr, 0, 0,
4918 gtk_widget_get_allocated_width (widget),
4919 gtk_widget_get_allocated_height (widget));
4924 gtk_text_view_focus (GtkWidget *widget,
4925 GtkDirectionType direction)
4927 GtkContainer *container;
4930 container = GTK_CONTAINER (widget);
4932 if (!gtk_widget_is_focus (widget) &&
4933 gtk_container_get_focus_child (container) == NULL)
4935 gtk_widget_grab_focus (widget);
4941 * Unset CAN_FOCUS flag so that gtk_container_focus() allows
4942 * children to get the focus
4944 gtk_widget_set_can_focus (widget, FALSE);
4945 result = GTK_WIDGET_CLASS (gtk_text_view_parent_class)->focus (widget, direction);
4946 gtk_widget_set_can_focus (widget, TRUE);
4957 gtk_text_view_add (GtkContainer *container,
4960 /* This is pretty random. */
4961 gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container),
4963 GTK_TEXT_WINDOW_WIDGET,
4968 gtk_text_view_remove (GtkContainer *container,
4971 GtkTextView *text_view;
4972 GtkTextViewPrivate *priv;
4973 GtkTextViewChild *vc;
4976 text_view = GTK_TEXT_VIEW (container);
4977 priv = text_view->priv;
4980 iter = priv->children;
4982 while (iter != NULL)
4986 if (vc->widget == child)
4989 iter = g_slist_next (iter);
4992 g_assert (iter != NULL); /* be sure we had the child in the list */
4994 priv->children = g_slist_remove (priv->children, vc);
4996 gtk_widget_unparent (vc->widget);
4998 text_view_child_free (vc);
5002 gtk_text_view_forall (GtkContainer *container,
5003 gboolean include_internals,
5004 GtkCallback callback,
5005 gpointer callback_data)
5008 GtkTextView *text_view;
5011 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
5012 g_return_if_fail (callback != NULL);
5014 text_view = GTK_TEXT_VIEW (container);
5016 copy = g_slist_copy (text_view->priv->children);
5019 while (iter != NULL)
5021 GtkTextViewChild *vc = iter->data;
5023 (* callback) (vc->widget, callback_data);
5025 iter = g_slist_next (iter);
5028 g_slist_free (copy);
5031 #define CURSOR_ON_MULTIPLIER 2
5032 #define CURSOR_OFF_MULTIPLIER 1
5033 #define CURSOR_PEND_MULTIPLIER 3
5034 #define CURSOR_DIVIDER 3
5037 cursor_blinks (GtkTextView *text_view)
5039 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5042 #ifdef DEBUG_VALIDATION_AND_SCROLLING
5045 if (gtk_get_debug_flags () & GTK_DEBUG_UPDATES)
5048 g_object_get (settings, "gtk-cursor-blink", &blink, NULL);
5053 if (text_view->priv->editable)
5055 GtkTextMark *insert;
5058 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
5059 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
5061 if (gtk_text_iter_editable (&iter, text_view->priv->editable))
5069 get_cursor_time (GtkTextView *text_view)
5071 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5074 g_object_get (settings, "gtk-cursor-blink-time", &time, NULL);
5080 get_cursor_blink_timeout (GtkTextView *text_view)
5082 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5085 g_object_get (settings, "gtk-cursor-blink-timeout", &time, NULL);
5096 blink_cb (gpointer data)
5098 GtkTextView *text_view;
5099 GtkTextViewPrivate *priv;
5103 text_view = GTK_TEXT_VIEW (data);
5104 priv = text_view->priv;
5106 if (!gtk_widget_has_focus (GTK_WIDGET (text_view)))
5108 g_warning ("GtkTextView - did not receive focus-out-event. If you\n"
5109 "connect a handler to this signal, it must return\n"
5110 "FALSE so the text view gets the event as well");
5112 gtk_text_view_check_cursor_blink (text_view);
5117 g_assert (priv->layout);
5118 g_assert (priv->cursor_visible);
5120 visible = gtk_text_layout_get_cursor_visible (priv->layout);
5122 blink_timeout = get_cursor_blink_timeout (text_view);
5123 if (priv->blink_time > 1000 * blink_timeout &&
5124 blink_timeout < G_MAXINT/1000)
5126 /* we've blinked enough without the user doing anything, stop blinking */
5128 priv->blink_timeout = 0;
5131 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
5136 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER / CURSOR_DIVIDER,
5139 priv->blink_time += get_cursor_time (text_view);
5142 /* Block changed_handler while changing the layout's cursor visibility
5143 * because it would expose the whole paragraph. Instead, we expose
5144 * the cursor's area(s) manually below.
5146 g_signal_handlers_block_by_func (priv->layout,
5149 gtk_text_layout_set_cursor_visible (priv->layout, !visible);
5150 g_signal_handlers_unblock_by_func (priv->layout,
5154 text_window_invalidate_cursors (priv->text_window);
5156 /* Remove ourselves */
5162 gtk_text_view_stop_cursor_blink (GtkTextView *text_view)
5164 if (text_view->priv->blink_timeout)
5166 g_source_remove (text_view->priv->blink_timeout);
5167 text_view->priv->blink_timeout = 0;
5172 gtk_text_view_check_cursor_blink (GtkTextView *text_view)
5174 GtkTextViewPrivate *priv = text_view->priv;
5176 if (priv->layout != NULL &&
5177 priv->cursor_visible &&
5178 gtk_widget_has_focus (GTK_WIDGET (text_view)))
5180 if (cursor_blinks (text_view))
5182 if (priv->blink_timeout == 0)
5184 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5186 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
5193 gtk_text_view_stop_cursor_blink (text_view);
5194 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5199 gtk_text_view_stop_cursor_blink (text_view);
5200 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
5205 gtk_text_view_pend_cursor_blink (GtkTextView *text_view)
5207 GtkTextViewPrivate *priv = text_view->priv;
5209 if (priv->layout != NULL &&
5210 priv->cursor_visible &&
5211 gtk_widget_has_focus (GTK_WIDGET (text_view)) &&
5212 cursor_blinks (text_view))
5214 gtk_text_view_stop_cursor_blink (text_view);
5215 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5217 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER / CURSOR_DIVIDER,
5224 gtk_text_view_reset_blink_time (GtkTextView *text_view)
5226 GtkTextViewPrivate *priv = text_view->priv;
5228 priv->blink_time = 0;
5233 * Key binding handlers
5237 gtk_text_view_move_iter_by_lines (GtkTextView *text_view,
5238 GtkTextIter *newplace,
5241 gboolean ret = TRUE;
5245 ret = gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, newplace);
5251 ret = gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, newplace);
5259 move_cursor (GtkTextView *text_view,
5260 const GtkTextIter *new_location,
5261 gboolean extend_selection)
5263 if (extend_selection)
5264 gtk_text_buffer_move_mark_by_name (get_buffer (text_view),
5268 gtk_text_buffer_place_cursor (get_buffer (text_view),
5270 gtk_text_view_check_cursor_blink (text_view);
5274 gtk_text_view_move_cursor_internal (GtkTextView *text_view,
5275 GtkMovementStep step,
5277 gboolean extend_selection)
5279 GtkTextViewPrivate *priv;
5281 GtkTextIter newplace;
5282 gboolean cancel_selection = FALSE;
5283 gint cursor_x_pos = 0;
5284 GtkDirectionType leave_direction = -1;
5286 priv = text_view->priv;
5288 if (!priv->cursor_visible)
5290 GtkScrollStep scroll_step;
5291 gdouble old_xpos, old_ypos;
5295 case GTK_MOVEMENT_VISUAL_POSITIONS:
5296 leave_direction = count > 0 ? GTK_DIR_RIGHT : GTK_DIR_LEFT;
5298 case GTK_MOVEMENT_LOGICAL_POSITIONS:
5299 case GTK_MOVEMENT_WORDS:
5300 scroll_step = GTK_SCROLL_HORIZONTAL_STEPS;
5302 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
5303 scroll_step = GTK_SCROLL_HORIZONTAL_ENDS;
5305 case GTK_MOVEMENT_DISPLAY_LINES:
5306 leave_direction = count > 0 ? GTK_DIR_DOWN : GTK_DIR_UP;
5308 case GTK_MOVEMENT_PARAGRAPHS:
5309 case GTK_MOVEMENT_PARAGRAPH_ENDS:
5310 scroll_step = GTK_SCROLL_STEPS;
5312 case GTK_MOVEMENT_PAGES:
5313 scroll_step = GTK_SCROLL_PAGES;
5315 case GTK_MOVEMENT_HORIZONTAL_PAGES:
5316 scroll_step = GTK_SCROLL_HORIZONTAL_PAGES;
5318 case GTK_MOVEMENT_BUFFER_ENDS:
5319 scroll_step = GTK_SCROLL_ENDS;
5322 scroll_step = GTK_SCROLL_PAGES;
5326 old_xpos = priv->xoffset;
5327 old_ypos = priv->yoffset;
5328 gtk_text_view_move_viewport (text_view, scroll_step, count);
5329 if ((old_xpos == priv->xoffset && old_ypos == priv->yoffset) &&
5330 leave_direction != -1 &&
5331 !gtk_widget_keynav_failed (GTK_WIDGET (text_view),
5334 g_signal_emit_by_name (text_view, "move-focus", leave_direction);
5340 gtk_text_view_reset_im_context (text_view);
5342 if (step == GTK_MOVEMENT_PAGES)
5344 if (!gtk_text_view_scroll_pages (text_view, count, extend_selection))
5345 gtk_widget_error_bell (GTK_WIDGET (text_view));
5347 gtk_text_view_check_cursor_blink (text_view);
5348 gtk_text_view_pend_cursor_blink (text_view);
5351 else if (step == GTK_MOVEMENT_HORIZONTAL_PAGES)
5353 if (!gtk_text_view_scroll_hpages (text_view, count, extend_selection))
5354 gtk_widget_error_bell (GTK_WIDGET (text_view));
5356 gtk_text_view_check_cursor_blink (text_view);
5357 gtk_text_view_pend_cursor_blink (text_view);
5361 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5362 gtk_text_buffer_get_insert (get_buffer (text_view)));
5364 if (! extend_selection)
5366 GtkTextIter sel_bound;
5368 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &sel_bound,
5369 gtk_text_buffer_get_selection_bound (get_buffer (text_view)));
5371 /* if we move forward, assume the cursor is at the end of the selection;
5372 * if we move backward, assume the cursor is at the start
5375 gtk_text_iter_order (&sel_bound, &insert);
5377 gtk_text_iter_order (&insert, &sel_bound);
5379 /* if we actually have a selection, just move *to* the beginning/end
5380 * of the selection and not *from* there on LOGICAL_POSITIONS
5381 * and VISUAL_POSITIONS movement
5383 if (! gtk_text_iter_equal (&sel_bound, &insert))
5384 cancel_selection = TRUE;
5389 if (step == GTK_MOVEMENT_DISPLAY_LINES)
5390 gtk_text_view_get_virtual_cursor_pos (text_view, &insert, &cursor_x_pos, NULL);
5394 case GTK_MOVEMENT_LOGICAL_POSITIONS:
5395 if (! cancel_selection)
5396 gtk_text_iter_forward_visible_cursor_positions (&newplace, count);
5399 case GTK_MOVEMENT_VISUAL_POSITIONS:
5400 if (! cancel_selection)
5401 gtk_text_layout_move_iter_visually (priv->layout,
5405 case GTK_MOVEMENT_WORDS:
5407 gtk_text_iter_backward_visible_word_starts (&newplace, -count);
5410 if (!gtk_text_iter_forward_visible_word_ends (&newplace, count))
5411 gtk_text_iter_forward_to_line_end (&newplace);
5415 case GTK_MOVEMENT_DISPLAY_LINES:
5418 leave_direction = GTK_DIR_UP;
5420 if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
5421 gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos);
5423 gtk_text_iter_set_line_offset (&newplace, 0);
5427 leave_direction = GTK_DIR_DOWN;
5429 if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
5430 gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos);
5432 gtk_text_iter_forward_to_line_end (&newplace);
5436 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
5438 gtk_text_view_move_iter_by_lines (text_view, &newplace, --count);
5439 else if (count < -1)
5440 gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count);
5443 gtk_text_layout_move_iter_to_line_end (priv->layout, &newplace, count);
5446 case GTK_MOVEMENT_PARAGRAPHS:
5449 if (!gtk_text_iter_ends_line (&newplace))
5451 gtk_text_iter_forward_to_line_end (&newplace);
5454 gtk_text_iter_forward_visible_lines (&newplace, count);
5455 gtk_text_iter_forward_to_line_end (&newplace);
5459 if (gtk_text_iter_get_line_offset (&newplace) > 0)
5460 gtk_text_iter_set_line_offset (&newplace, 0);
5461 gtk_text_iter_forward_visible_lines (&newplace, count);
5462 gtk_text_iter_set_line_offset (&newplace, 0);
5466 case GTK_MOVEMENT_PARAGRAPH_ENDS:
5469 if (!gtk_text_iter_ends_line (&newplace))
5470 gtk_text_iter_forward_to_line_end (&newplace);
5474 gtk_text_iter_set_line_offset (&newplace, 0);
5478 case GTK_MOVEMENT_BUFFER_ENDS:
5480 gtk_text_buffer_get_end_iter (get_buffer (text_view), &newplace);
5482 gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0);
5489 /* call move_cursor() even if the cursor hasn't moved, since it
5490 cancels the selection
5492 move_cursor (text_view, &newplace, extend_selection);
5494 if (!gtk_text_iter_equal (&insert, &newplace))
5496 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5497 gtk_text_view_scroll_mark_onscreen (text_view,
5498 gtk_text_buffer_get_insert (get_buffer (text_view)));
5500 if (step == GTK_MOVEMENT_DISPLAY_LINES)
5501 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
5503 else if (leave_direction != -1)
5505 if (!gtk_widget_keynav_failed (GTK_WIDGET (text_view),
5508 g_signal_emit_by_name (text_view, "move-focus", leave_direction);
5511 else if (! cancel_selection)
5513 gtk_widget_error_bell (GTK_WIDGET (text_view));
5516 gtk_text_view_check_cursor_blink (text_view);
5517 gtk_text_view_pend_cursor_blink (text_view);
5521 gtk_text_view_move_cursor (GtkTextView *text_view,
5522 GtkMovementStep step,
5524 gboolean extend_selection)
5526 gtk_text_view_move_cursor_internal (text_view, step, count, extend_selection);
5530 gtk_text_view_move_viewport (GtkTextView *text_view,
5534 GtkAdjustment *adjustment;
5539 case GTK_SCROLL_STEPS:
5540 case GTK_SCROLL_PAGES:
5541 case GTK_SCROLL_ENDS:
5542 adjustment = text_view->priv->vadjustment;
5544 case GTK_SCROLL_HORIZONTAL_STEPS:
5545 case GTK_SCROLL_HORIZONTAL_PAGES:
5546 case GTK_SCROLL_HORIZONTAL_ENDS:
5547 adjustment = text_view->priv->hadjustment;
5550 adjustment = text_view->priv->vadjustment;
5556 case GTK_SCROLL_STEPS:
5557 case GTK_SCROLL_HORIZONTAL_STEPS:
5558 increment = gtk_adjustment_get_step_increment (adjustment);
5560 case GTK_SCROLL_PAGES:
5561 case GTK_SCROLL_HORIZONTAL_PAGES:
5562 increment = gtk_adjustment_get_page_increment (adjustment);
5564 case GTK_SCROLL_ENDS:
5565 case GTK_SCROLL_HORIZONTAL_ENDS:
5566 increment = gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_lower (adjustment);
5573 gtk_adjustment_set_value (adjustment, gtk_adjustment_get_value (adjustment) + count * increment);
5577 gtk_text_view_set_anchor (GtkTextView *text_view)
5581 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5582 gtk_text_buffer_get_insert (get_buffer (text_view)));
5584 gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
5588 gtk_text_view_scroll_pages (GtkTextView *text_view,
5590 gboolean extend_selection)
5592 GtkTextViewPrivate *priv;
5593 GtkAdjustment *adjustment;
5594 gint cursor_x_pos, cursor_y_pos;
5595 GtkTextMark *insert_mark;
5596 GtkTextIter old_insert;
5597 GtkTextIter new_insert;
5603 priv = text_view->priv;
5605 g_return_val_if_fail (priv->vadjustment != NULL, FALSE);
5607 adjustment = priv->vadjustment;
5609 insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view));
5611 /* Make sure we start from the current cursor position, even
5612 * if it was offscreen, but don't queue more scrolls if we're
5615 if (priv->pending_scroll)
5616 cancel_pending_scroll (text_view);
5618 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5620 /* Validate the region that will be brought into view by the cursor motion
5622 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5623 &old_insert, insert_mark);
5627 gtk_text_view_get_first_para_iter (text_view, &anchor);
5628 y0 = gtk_adjustment_get_page_size (adjustment);
5629 y1 = gtk_adjustment_get_page_size (adjustment) + count * gtk_adjustment_get_page_increment (adjustment);
5633 gtk_text_view_get_first_para_iter (text_view, &anchor);
5634 y0 = count * gtk_adjustment_get_page_increment (adjustment) + gtk_adjustment_get_page_size (adjustment);
5638 gtk_text_layout_validate_yrange (priv->layout, &anchor, y0, y1);
5639 /* FIXME do we need to update the adjustment ranges here? */
5641 new_insert = old_insert;
5643 if (count < 0 && gtk_adjustment_get_value (adjustment) <= (gtk_adjustment_get_lower (adjustment) + 1e-12))
5645 /* already at top, just be sure we are at offset 0 */
5646 gtk_text_buffer_get_start_iter (get_buffer (text_view), &new_insert);
5647 move_cursor (text_view, &new_insert, extend_selection);
5649 else if (count > 0 && gtk_adjustment_get_value (adjustment) >= (gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment) - 1e-12))
5651 /* already at bottom, just be sure we are at the end */
5652 gtk_text_buffer_get_end_iter (get_buffer (text_view), &new_insert);
5653 move_cursor (text_view, &new_insert, extend_selection);
5657 gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos);
5659 oldval = gtk_adjustment_get_value (adjustment);
5660 newval = gtk_adjustment_get_value (adjustment);
5662 newval += count * gtk_adjustment_get_page_increment (adjustment);
5664 gtk_adjustment_set_value (adjustment, newval);
5665 cursor_y_pos += gtk_adjustment_get_value (adjustment) - oldval;
5667 gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos);
5668 clamp_iter_onscreen (text_view, &new_insert);
5669 move_cursor (text_view, &new_insert, extend_selection);
5671 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
5674 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
5675 * only guarantees 1 pixel onscreen.
5677 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5678 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5680 return !gtk_text_iter_equal (&old_insert, &new_insert);
5684 gtk_text_view_scroll_hpages (GtkTextView *text_view,
5686 gboolean extend_selection)
5688 GtkTextViewPrivate *priv;
5689 GtkAdjustment *adjustment;
5690 gint cursor_x_pos, cursor_y_pos;
5691 GtkTextMark *insert_mark;
5692 GtkTextIter old_insert;
5693 GtkTextIter new_insert;
5698 priv = text_view->priv;
5700 g_return_val_if_fail (priv->hadjustment != NULL, FALSE);
5702 adjustment = priv->hadjustment;
5704 insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view));
5706 /* Make sure we start from the current cursor position, even
5707 * if it was offscreen, but don't queue more scrolls if we're
5710 if (priv->pending_scroll)
5711 cancel_pending_scroll (text_view);
5713 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5715 /* Validate the line that we're moving within.
5717 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5718 &old_insert, insert_mark);
5720 gtk_text_layout_get_line_yrange (priv->layout, &old_insert, &y, &height);
5721 gtk_text_layout_validate_yrange (priv->layout, &old_insert, y, y + height);
5722 /* FIXME do we need to update the adjustment ranges here? */
5724 new_insert = old_insert;
5726 if (count < 0 && gtk_adjustment_get_value (adjustment) <= (gtk_adjustment_get_lower (adjustment) + 1e-12))
5728 /* already at far left, just be sure we are at offset 0 */
5729 gtk_text_iter_set_line_offset (&new_insert, 0);
5730 move_cursor (text_view, &new_insert, extend_selection);
5732 else if (count > 0 && gtk_adjustment_get_value (adjustment) >= (gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment) - 1e-12))
5734 /* already at far right, just be sure we are at the end */
5735 if (!gtk_text_iter_ends_line (&new_insert))
5736 gtk_text_iter_forward_to_line_end (&new_insert);
5737 move_cursor (text_view, &new_insert, extend_selection);
5741 gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos);
5743 oldval = gtk_adjustment_get_value (adjustment);
5744 newval = gtk_adjustment_get_value (adjustment);
5746 newval += count * gtk_adjustment_get_page_increment (adjustment);
5748 gtk_adjustment_set_value (adjustment, newval);
5749 cursor_x_pos += gtk_adjustment_get_value (adjustment) - oldval;
5751 gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos);
5752 clamp_iter_onscreen (text_view, &new_insert);
5753 move_cursor (text_view, &new_insert, extend_selection);
5755 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
5758 /* FIXME for lines shorter than the overall widget width, this results in a
5759 * "bounce" effect as we scroll to the right of the widget, then scroll
5760 * back to get the end of the line onscreen.
5761 * http://bugzilla.gnome.org/show_bug.cgi?id=68963
5764 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
5765 * only guarantees 1 pixel onscreen.
5767 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5768 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5770 return !gtk_text_iter_equal (&old_insert, &new_insert);
5774 whitespace (gunichar ch, gpointer user_data)
5776 return (ch == ' ' || ch == '\t');
5780 not_whitespace (gunichar ch, gpointer user_data)
5782 return !whitespace (ch, user_data);
5786 find_whitepace_region (const GtkTextIter *center,
5787 GtkTextIter *start, GtkTextIter *end)
5792 if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL))
5793 gtk_text_iter_forward_char (start); /* we want the first whitespace... */
5794 if (whitespace (gtk_text_iter_get_char (end), NULL))
5795 gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL);
5797 return !gtk_text_iter_equal (start, end);
5801 gtk_text_view_insert_at_cursor (GtkTextView *text_view,
5804 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
5805 text_view->priv->editable))
5807 gtk_widget_error_bell (GTK_WIDGET (text_view));
5812 gtk_text_view_delete_from_cursor (GtkTextView *text_view,
5816 GtkTextViewPrivate *priv;
5820 gboolean leave_one = FALSE;
5822 priv = text_view->priv;
5824 gtk_text_view_reset_im_context (text_view);
5826 if (type == GTK_DELETE_CHARS)
5828 /* Char delete deletes the selection, if one exists */
5829 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5834 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5835 gtk_text_buffer_get_insert (get_buffer (text_view)));
5842 case GTK_DELETE_CHARS:
5843 gtk_text_iter_forward_cursor_positions (&end, count);
5846 case GTK_DELETE_WORD_ENDS:
5848 gtk_text_iter_forward_word_ends (&end, count);
5850 gtk_text_iter_backward_word_starts (&start, 0 - count);
5853 case GTK_DELETE_WORDS:
5856 case GTK_DELETE_DISPLAY_LINE_ENDS:
5859 case GTK_DELETE_DISPLAY_LINES:
5862 case GTK_DELETE_PARAGRAPH_ENDS:
5865 /* If we're already at a newline, we need to
5866 * simply delete that newline, instead of
5867 * moving to the next one.
5869 if (gtk_text_iter_ends_line (&end))
5871 gtk_text_iter_forward_line (&end);
5877 if (!gtk_text_iter_forward_to_line_end (&end))
5885 if (gtk_text_iter_starts_line (&start))
5887 gtk_text_iter_backward_line (&start);
5888 if (!gtk_text_iter_ends_line (&end))
5889 gtk_text_iter_forward_to_line_end (&start);
5893 gtk_text_iter_set_line_offset (&start, 0);
5897 gtk_text_iter_backward_lines (&start, -count);
5901 case GTK_DELETE_PARAGRAPHS:
5904 gtk_text_iter_set_line_offset (&start, 0);
5905 gtk_text_iter_forward_to_line_end (&end);
5907 /* Do the lines beyond the first. */
5910 gtk_text_iter_forward_to_line_end (&end);
5916 /* FIXME negative count? */
5920 case GTK_DELETE_WHITESPACE:
5922 find_whitepace_region (&insert, &start, &end);
5930 if (!gtk_text_iter_equal (&start, &end))
5932 gtk_text_buffer_begin_user_action (get_buffer (text_view));
5934 if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end,
5938 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view),
5944 gtk_widget_error_bell (GTK_WIDGET (text_view));
5947 gtk_text_buffer_end_user_action (get_buffer (text_view));
5948 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
5950 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5951 gtk_text_view_scroll_mark_onscreen (text_view,
5952 gtk_text_buffer_get_insert (get_buffer (text_view)));
5956 gtk_widget_error_bell (GTK_WIDGET (text_view));
5961 gtk_text_view_backspace (GtkTextView *text_view)
5963 GtkTextViewPrivate *priv;
5966 priv = text_view->priv;
5968 gtk_text_view_reset_im_context (text_view);
5970 /* Backspace deletes the selection, if one exists */
5971 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5975 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5977 gtk_text_buffer_get_insert (get_buffer (text_view)));
5979 if (gtk_text_buffer_backspace (get_buffer (text_view), &insert,
5980 TRUE, priv->editable))
5982 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
5983 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5984 gtk_text_view_scroll_mark_onscreen (text_view,
5985 gtk_text_buffer_get_insert (get_buffer (text_view)));
5989 gtk_widget_error_bell (GTK_WIDGET (text_view));
5994 gtk_text_view_cut_clipboard (GtkTextView *text_view)
5996 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
5997 GDK_SELECTION_CLIPBOARD);
5999 gtk_text_buffer_cut_clipboard (get_buffer (text_view),
6001 text_view->priv->editable);
6002 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6003 gtk_text_view_scroll_mark_onscreen (text_view,
6004 gtk_text_buffer_get_insert (get_buffer (text_view)));
6008 gtk_text_view_copy_clipboard (GtkTextView *text_view)
6010 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6011 GDK_SELECTION_CLIPBOARD);
6013 gtk_text_buffer_copy_clipboard (get_buffer (text_view),
6016 /* on copy do not scroll, we are already onscreen */
6020 gtk_text_view_paste_clipboard (GtkTextView *text_view)
6022 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6023 GDK_SELECTION_CLIPBOARD);
6025 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
6028 text_view->priv->editable);
6032 gtk_text_view_paste_done_handler (GtkTextBuffer *buffer,
6033 GtkClipboard *clipboard,
6036 GtkTextView *text_view = data;
6037 GtkTextViewPrivate *priv;
6039 priv = text_view->priv;
6041 if (priv->scroll_after_paste)
6043 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6044 gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (buffer));
6047 priv->scroll_after_paste = TRUE;
6051 gtk_text_view_toggle_overwrite (GtkTextView *text_view)
6053 GtkTextViewPrivate *priv = text_view->priv;
6055 if (priv->text_window)
6056 text_window_invalidate_cursors (priv->text_window);
6058 priv->overwrite_mode = !priv->overwrite_mode;
6061 gtk_text_layout_set_overwrite_mode (priv->layout,
6062 priv->overwrite_mode && priv->editable);
6064 if (priv->text_window)
6065 text_window_invalidate_cursors (priv->text_window);
6067 gtk_text_view_pend_cursor_blink (text_view);
6069 g_object_notify (G_OBJECT (text_view), "overwrite");
6073 * gtk_text_view_get_overwrite:
6074 * @text_view: a #GtkTextView
6076 * Returns whether the #GtkTextView is in overwrite mode or not.
6078 * Return value: whether @text_view is in overwrite mode or not.
6083 gtk_text_view_get_overwrite (GtkTextView *text_view)
6085 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6087 return text_view->priv->overwrite_mode;
6091 * gtk_text_view_set_overwrite:
6092 * @text_view: a #GtkTextView
6093 * @overwrite: %TRUE to turn on overwrite mode, %FALSE to turn it off
6095 * Changes the #GtkTextView overwrite mode.
6100 gtk_text_view_set_overwrite (GtkTextView *text_view,
6103 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6104 overwrite = overwrite != FALSE;
6106 if (text_view->priv->overwrite_mode != overwrite)
6107 gtk_text_view_toggle_overwrite (text_view);
6111 * gtk_text_view_set_accepts_tab:
6112 * @text_view: A #GtkTextView
6113 * @accepts_tab: %TRUE if pressing the Tab key should insert a tab
6114 * character, %FALSE, if pressing the Tab key should move the
6117 * Sets the behavior of the text widget when the Tab key is pressed.
6118 * If @accepts_tab is %TRUE, a tab character is inserted. If @accepts_tab
6119 * is %FALSE the keyboard focus is moved to the next widget in the focus
6125 gtk_text_view_set_accepts_tab (GtkTextView *text_view,
6126 gboolean accepts_tab)
6128 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6130 accepts_tab = accepts_tab != FALSE;
6132 if (text_view->priv->accepts_tab != accepts_tab)
6134 text_view->priv->accepts_tab = accepts_tab;
6136 g_object_notify (G_OBJECT (text_view), "accepts-tab");
6141 * gtk_text_view_get_accepts_tab:
6142 * @text_view: A #GtkTextView
6144 * Returns whether pressing the Tab key inserts a tab characters.
6145 * gtk_text_view_set_accepts_tab().
6147 * Return value: %TRUE if pressing the Tab key inserts a tab character,
6148 * %FALSE if pressing the Tab key moves the keyboard focus.
6153 gtk_text_view_get_accepts_tab (GtkTextView *text_view)
6155 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6157 return text_view->priv->accepts_tab;
6165 gtk_text_view_unselect (GtkTextView *text_view)
6169 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
6170 gtk_text_buffer_get_insert (get_buffer (text_view)));
6172 gtk_text_buffer_move_mark (get_buffer (text_view),
6173 gtk_text_buffer_get_selection_bound (get_buffer (text_view)),
6178 get_iter_at_pointer (GtkTextView *text_view,
6184 GtkTextViewPrivate *priv;
6185 gint xcoord, ycoord;
6186 GdkModifierType state;
6188 priv = text_view->priv;
6190 gdk_window_get_device_position (priv->text_window->bin_window,
6191 device, &xcoord, &ycoord, &state);
6193 gtk_text_layout_get_iter_at_pixel (priv->layout,
6195 xcoord + priv->xoffset,
6196 ycoord + priv->yoffset);
6205 move_mark_to_pointer_and_scroll (GtkTextView *text_view,
6206 const gchar *mark_name,
6209 GtkTextIter newplace;
6212 get_iter_at_pointer (text_view, device, &newplace, NULL, NULL);
6214 mark = gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
6216 /* This may invalidate the layout */
6217 DV(g_print (G_STRLOC": move mark\n"));
6219 gtk_text_buffer_move_mark (get_buffer (text_view),
6223 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6224 gtk_text_view_scroll_mark_onscreen (text_view, mark);
6226 DV (g_print ("first validate idle leaving %s is %d\n",
6227 G_STRLOC, text_view->priv->first_validate_idle));
6231 selection_scan_timeout (gpointer data)
6233 GtkTextView *text_view;
6235 text_view = GTK_TEXT_VIEW (data);
6237 gtk_text_view_scroll_mark_onscreen (text_view,
6238 gtk_text_buffer_get_insert (get_buffer (text_view)));
6240 return TRUE; /* remain installed. */
6243 #define UPPER_OFFSET_ANCHOR 0.8
6244 #define LOWER_OFFSET_ANCHOR 0.2
6247 check_scroll (gdouble offset, GtkAdjustment *adjustment)
6249 if ((offset > UPPER_OFFSET_ANCHOR &&
6250 gtk_adjustment_get_value (adjustment) + gtk_adjustment_get_page_size (adjustment) < gtk_adjustment_get_upper (adjustment)) ||
6251 (offset < LOWER_OFFSET_ANCHOR &&
6252 gtk_adjustment_get_value (adjustment) > gtk_adjustment_get_lower (adjustment)))
6259 drag_scan_timeout (gpointer data)
6261 GtkTextView *text_view;
6262 GtkTextViewPrivate *priv;
6263 GtkTextIter newplace;
6265 gdouble pointer_xoffset, pointer_yoffset;
6267 text_view = GTK_TEXT_VIEW (data);
6268 priv = text_view->priv;
6270 get_iter_at_pointer (text_view, priv->dnd_device, &newplace, &x, &y);
6272 gtk_text_buffer_move_mark (get_buffer (text_view),
6276 pointer_xoffset = (gdouble) x / gdk_window_get_width (priv->text_window->bin_window);
6277 pointer_yoffset = (gdouble) y / gdk_window_get_height (priv->text_window->bin_window);
6279 if (check_scroll (pointer_xoffset, priv->hadjustment) ||
6280 check_scroll (pointer_yoffset, priv->vadjustment))
6282 /* do not make offsets surpass lower nor upper anchors, this makes
6283 * scrolling speed relative to the distance of the pointer to the
6284 * anchors when it moves beyond them.
6286 pointer_xoffset = CLAMP (pointer_xoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR);
6287 pointer_yoffset = CLAMP (pointer_yoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR);
6289 gtk_text_view_scroll_to_mark (text_view,
6291 0., TRUE, pointer_xoffset, pointer_yoffset);
6302 } SelectionGranularity;
6305 * Move @start and @end to the boundaries of the selection unit (indicated by
6306 * @granularity) which contained @start initially.
6307 * If the selction unit is SELECT_WORDS and @start is not contained in a word
6308 * the selection is extended to all the white spaces between the end of the
6309 * word preceding @start and the start of the one following.
6312 extend_selection (GtkTextView *text_view,
6313 SelectionGranularity granularity,
6319 if (granularity == SELECT_WORDS)
6321 if (gtk_text_iter_inside_word (start))
6323 if (!gtk_text_iter_starts_word (start))
6324 gtk_text_iter_backward_visible_word_start (start);
6326 if (!gtk_text_iter_ends_word (end))
6328 if (!gtk_text_iter_forward_visible_word_end (end))
6329 gtk_text_iter_forward_to_end (end);
6337 if (gtk_text_iter_backward_visible_word_start (&tmp))
6338 gtk_text_iter_forward_visible_word_end (&tmp);
6340 if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (start))
6343 gtk_text_iter_set_line_offset (start, 0);
6346 if (!gtk_text_iter_forward_visible_word_end (&tmp))
6347 gtk_text_iter_forward_to_end (&tmp);
6349 if (gtk_text_iter_ends_word (&tmp))
6350 gtk_text_iter_backward_visible_word_start (&tmp);
6352 if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (end))
6355 gtk_text_iter_forward_to_line_end (end);
6358 else if (granularity == SELECT_LINES)
6360 if (gtk_text_view_starts_display_line (text_view, start))
6362 /* If on a display line boundary, we assume the user
6363 * clicked off the end of a line and we therefore select
6364 * the line before the boundary.
6366 gtk_text_view_backward_display_line_start (text_view, start);
6370 /* start isn't on the start of a line, so we move it to the
6371 * start, and move end to the end unless it's already there.
6373 gtk_text_view_backward_display_line_start (text_view, start);
6375 if (!gtk_text_view_starts_display_line (text_view, end))
6376 gtk_text_view_forward_display_line_end (text_view, end);
6384 SelectionGranularity granularity;
6385 GtkTextMark *orig_start;
6386 GtkTextMark *orig_end;
6390 selection_data_free (SelectionData *data)
6392 if (data->orig_start != NULL)
6393 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_start),
6395 if (data->orig_end != NULL)
6396 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_end),
6402 selection_motion_event_handler (GtkTextView *text_view,
6403 GdkEventMotion *event,
6404 SelectionData *data)
6406 GtkTextViewPrivate *priv;
6408 priv = text_view->priv;
6409 gdk_event_request_motions (event);
6411 if (priv->grab_device != event->device)
6414 if (data->granularity == SELECT_CHARACTERS)
6416 move_mark_to_pointer_and_scroll (text_view, "insert", event->device);
6420 GtkTextIter cursor, start, end;
6421 GtkTextIter orig_start, orig_end;
6422 GtkTextBuffer *buffer;
6424 buffer = get_buffer (text_view);
6426 gtk_text_buffer_get_iter_at_mark (buffer, &orig_start, data->orig_start);
6427 gtk_text_buffer_get_iter_at_mark (buffer, &orig_end, data->orig_end);
6429 get_iter_at_pointer (text_view, event->device, &cursor, NULL, NULL);
6432 extend_selection (text_view, data->granularity, &start, &end);
6434 /* either the selection extends to the front, or end (or not) */
6435 if (gtk_text_iter_compare (&cursor, &orig_start) < 0)
6436 gtk_text_buffer_select_range (buffer, &start, &orig_end);
6438 gtk_text_buffer_select_range (buffer, &end, &orig_start);
6440 gtk_text_view_scroll_mark_onscreen (text_view,
6441 gtk_text_buffer_get_insert (buffer));
6444 /* If we had to scroll offscreen, insert a timeout to do so
6445 * again. Note that in the timeout, even if the mouse doesn't
6446 * move, due to this scroll xoffset/yoffset will have changed
6447 * and we'll need to scroll again.
6449 if (text_view->priv->scroll_timeout != 0) /* reset on every motion event */
6450 g_source_remove (text_view->priv->scroll_timeout);
6452 text_view->priv->scroll_timeout =
6453 gdk_threads_add_timeout (50, selection_scan_timeout, text_view);
6459 gtk_text_view_start_selection_drag (GtkTextView *text_view,
6460 const GtkTextIter *iter,
6461 GdkEventButton *button)
6463 GtkTextViewPrivate *priv;
6464 GtkTextIter cursor, ins, bound;
6465 GtkTextIter orig_start, orig_end;
6466 GtkTextBuffer *buffer;
6467 SelectionData *data;
6469 if (text_view->priv->selection_drag_handler != 0)
6472 priv = text_view->priv;
6473 data = g_new0 (SelectionData, 1);
6475 if (button->type == GDK_2BUTTON_PRESS)
6476 data->granularity = SELECT_WORDS;
6477 else if (button->type == GDK_3BUTTON_PRESS)
6478 data->granularity = SELECT_LINES;
6480 data->granularity = SELECT_CHARACTERS;
6482 priv->grab_device = button->device;
6483 gtk_device_grab_add (GTK_WIDGET (text_view),
6487 buffer = get_buffer (text_view);
6492 extend_selection (text_view, data->granularity, &ins, &bound);
6497 gtk_widget_get_modifier_mask (GTK_WIDGET (text_view),
6498 GDK_MODIFIER_INTENT_EXTEND_SELECTION))
6500 /* Extend selection */
6501 GtkTextIter old_ins, old_bound;
6502 GtkTextIter old_start, old_end;
6504 gtk_text_buffer_get_iter_at_mark (buffer, &old_ins, gtk_text_buffer_get_insert (buffer));
6505 gtk_text_buffer_get_iter_at_mark (buffer, &old_bound, gtk_text_buffer_get_selection_bound (buffer));
6506 old_start = old_ins;
6507 old_end = old_bound;
6508 gtk_text_iter_order (&old_start, &old_end);
6510 /* move the front cursor, if the mouse is in front of the selection. Should the
6511 * cursor however be inside the selection (this happens on tripple click) then we
6512 * move the side which was last moved (current insert mark) */
6513 if (gtk_text_iter_compare (&cursor, &old_start) <= 0 ||
6514 (gtk_text_iter_compare (&cursor, &old_end) < 0 &&
6515 gtk_text_iter_compare (&old_ins, &old_bound) <= 0))
6518 orig_start = old_end;
6530 gtk_text_buffer_select_range (buffer, &ins, &bound);
6532 gtk_text_iter_order (&orig_start, &orig_end);
6533 data->orig_start = gtk_text_buffer_create_mark (buffer, NULL,
6535 data->orig_end = gtk_text_buffer_create_mark (buffer, NULL,
6537 gtk_text_view_check_cursor_blink (text_view);
6539 text_view->priv->selection_drag_handler = g_signal_connect_data (text_view,
6540 "motion-notify-event",
6541 G_CALLBACK (selection_motion_event_handler),
6543 (GClosureNotify) selection_data_free, 0);
6546 /* returns whether we were really dragging */
6548 gtk_text_view_end_selection_drag (GtkTextView *text_view)
6550 GtkTextViewPrivate *priv;
6552 priv = text_view->priv;
6554 if (!priv->grab_device)
6557 if (priv->selection_drag_handler == 0)
6560 g_signal_handler_disconnect (text_view, priv->selection_drag_handler);
6561 priv->selection_drag_handler = 0;
6563 if (priv->scroll_timeout != 0)
6565 g_source_remove (priv->scroll_timeout);
6566 priv->scroll_timeout = 0;
6569 gtk_device_grab_remove (GTK_WIDGET (text_view),
6571 priv->grab_device = NULL;
6581 gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
6582 GtkTextAttributes *values)
6584 GtkStyleContext *context;
6585 GdkRGBA bg_color, fg_color;
6586 GtkStateFlags state;
6588 context = gtk_widget_get_style_context (GTK_WIDGET (text_view));
6589 state = gtk_widget_get_state_flags (GTK_WIDGET (text_view));
6591 gtk_style_context_save (context);
6592 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
6594 gtk_style_context_get_background_color (context, state, &bg_color);
6595 gtk_style_context_get_color (context, state, &fg_color);
6597 values->appearance.bg_color.red = CLAMP (bg_color.red * 65535. + 0.5, 0, 65535);
6598 values->appearance.bg_color.green = CLAMP (bg_color.green * 65535. + 0.5, 0, 65535);
6599 values->appearance.bg_color.blue = CLAMP (bg_color.blue * 65535. + 0.5, 0, 65535);
6601 values->appearance.fg_color.red = CLAMP (fg_color.red * 65535. + 0.5, 0, 65535);
6602 values->appearance.fg_color.green = CLAMP (fg_color.green * 65535. + 0.5, 0, 65535);
6603 values->appearance.fg_color.blue = CLAMP (fg_color.blue * 65535. + 0.5, 0, 65535);
6606 pango_font_description_free (values->font);
6608 values->font = pango_font_description_copy (gtk_style_context_get_font (context, state));
6610 gtk_style_context_restore (context);
6614 gtk_text_view_check_keymap_direction (GtkTextView *text_view)
6616 GtkTextViewPrivate *priv = text_view->priv;
6620 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
6621 GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)));
6622 GtkTextDirection new_cursor_dir;
6623 GtkTextDirection new_keyboard_dir;
6624 gboolean split_cursor;
6626 g_object_get (settings,
6627 "gtk-split-cursor", &split_cursor,
6630 if (gdk_keymap_get_direction (keymap) == PANGO_DIRECTION_RTL)
6631 new_keyboard_dir = GTK_TEXT_DIR_RTL;
6633 new_keyboard_dir = GTK_TEXT_DIR_LTR;
6636 new_cursor_dir = GTK_TEXT_DIR_NONE;
6638 new_cursor_dir = new_keyboard_dir;
6640 gtk_text_layout_set_cursor_direction (priv->layout, new_cursor_dir);
6641 gtk_text_layout_set_keyboard_direction (priv->layout, new_keyboard_dir);
6646 gtk_text_view_ensure_layout (GtkTextView *text_view)
6649 GtkTextViewPrivate *priv;
6651 widget = GTK_WIDGET (text_view);
6652 priv = text_view->priv;
6654 if (priv->layout == NULL)
6656 GtkTextAttributes *style;
6657 PangoContext *ltr_context, *rtl_context;
6660 DV(g_print(G_STRLOC"\n"));
6662 priv->layout = gtk_text_layout_new ();
6664 g_signal_connect (priv->layout,
6666 G_CALLBACK (invalidated_handler),
6669 g_signal_connect (priv->layout,
6671 G_CALLBACK (changed_handler),
6674 g_signal_connect (priv->layout,
6676 G_CALLBACK (gtk_text_view_child_allocated),
6679 if (get_buffer (text_view))
6680 gtk_text_layout_set_buffer (priv->layout, get_buffer (text_view));
6682 if ((gtk_widget_has_focus (widget) && priv->cursor_visible))
6683 gtk_text_view_pend_cursor_blink (text_view);
6685 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
6687 gtk_text_layout_set_overwrite_mode (priv->layout,
6688 priv->overwrite_mode && priv->editable);
6690 ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
6691 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
6692 rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
6693 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
6695 gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context);
6697 g_object_unref (ltr_context);
6698 g_object_unref (rtl_context);
6700 gtk_text_view_check_keymap_direction (text_view);
6702 style = gtk_text_attributes_new ();
6704 gtk_text_view_set_attributes_from_style (text_view, style);
6706 style->pixels_above_lines = priv->pixels_above_lines;
6707 style->pixels_below_lines = priv->pixels_below_lines;
6708 style->pixels_inside_wrap = priv->pixels_inside_wrap;
6709 style->left_margin = priv->left_margin;
6710 style->right_margin = priv->right_margin;
6711 style->indent = priv->indent;
6712 style->tabs = priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL;
6714 style->wrap_mode = priv->wrap_mode;
6715 style->justification = priv->justify;
6716 style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view));
6718 gtk_text_layout_set_default_style (priv->layout, style);
6720 gtk_text_attributes_unref (style);
6722 /* Set layout for all anchored children */
6724 tmp_list = priv->children;
6725 while (tmp_list != NULL)
6727 GtkTextViewChild *vc = tmp_list->data;
6731 gtk_text_anchored_child_set_layout (vc->widget,
6733 /* vc may now be invalid! */
6736 tmp_list = g_slist_next (tmp_list);
6742 * gtk_text_view_get_default_attributes:
6743 * @text_view: a #GtkTextView
6745 * Obtains a copy of the default text attributes. These are the
6746 * attributes used for text unless a tag overrides them.
6747 * You'd typically pass the default attributes in to
6748 * gtk_text_iter_get_attributes() in order to get the
6749 * attributes in effect at a given text position.
6751 * The return value is a copy owned by the caller of this function,
6752 * and should be freed.
6754 * Return value: a new #GtkTextAttributes
6757 gtk_text_view_get_default_attributes (GtkTextView *text_view)
6759 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
6761 gtk_text_view_ensure_layout (text_view);
6763 return gtk_text_attributes_copy (text_view->priv->layout->default_style);
6767 gtk_text_view_destroy_layout (GtkTextView *text_view)
6769 GtkTextViewPrivate *priv = text_view->priv;
6775 gtk_text_view_remove_validate_idles (text_view);
6777 g_signal_handlers_disconnect_by_func (priv->layout,
6778 invalidated_handler,
6780 g_signal_handlers_disconnect_by_func (priv->layout,
6784 /* Remove layout from all anchored children */
6785 tmp_list = priv->children;
6786 while (tmp_list != NULL)
6788 GtkTextViewChild *vc = tmp_list->data;
6792 gtk_text_anchored_child_set_layout (vc->widget, NULL);
6793 /* vc may now be invalid! */
6796 tmp_list = g_slist_next (tmp_list);
6799 gtk_text_view_stop_cursor_blink (text_view);
6800 gtk_text_view_end_selection_drag (text_view);
6802 g_object_unref (priv->layout);
6803 priv->layout = NULL;
6808 * gtk_text_view_reset_im_context:
6809 * @text_view: a #GtkTextView
6811 * Reset the input method context of the text view if needed.
6813 * This can be necessary in the case where modifying the buffer
6814 * would confuse on-going input method behavior.
6819 gtk_text_view_reset_im_context (GtkTextView *text_view)
6821 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6823 if (text_view->priv->need_im_reset)
6825 text_view->priv->need_im_reset = FALSE;
6826 gtk_im_context_reset (text_view->priv->im_context);
6831 * gtk_text_view_im_context_filter_keypress:
6832 * @text_view: a #GtkTextView
6833 * @event: the key event
6835 * Allow the #GtkTextView input method to internally handle key press
6836 * and release events. If this function returns %TRUE, then no further
6837 * processing should be done for this key event. See
6838 * gtk_im_context_filter_keypress().
6840 * Note that you are expected to call this function from your handler
6841 * when overriding key event handling. This is needed in the case when
6842 * you need to insert your own key handling between the input method
6843 * and the default key event handling of the #GtkTextView.
6847 * gtk_foo_bar_key_press_event (GtkWidget *widget,
6848 * GdkEventKey *event)
6850 * if ((key->keyval == GDK_KEY_Return || key->keyval == GDK_KEY_KP_Enter))
6852 * if (gtk_text_view_im_context_filter_keypress (GTK_TEXT_VIEW (view), event))
6856 * /* Do some stuff */
6858 * return GTK_WIDGET_CLASS (gtk_foo_bar_parent_class)->key_press_event (widget, event);
6862 * Return value: %TRUE if the input method handled the key event.
6867 gtk_text_view_im_context_filter_keypress (GtkTextView *text_view,
6870 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6872 return gtk_im_context_filter_keypress (text_view->priv->im_context, event);
6880 drag_begin_cb (GtkWidget *widget,
6881 GdkDragContext *context,
6884 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
6885 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
6888 cairo_surface_t *surface = NULL;
6890 g_signal_handlers_disconnect_by_func (widget, drag_begin_cb, NULL);
6892 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
6893 surface = _gtk_text_util_create_rich_drag_icon (widget, buffer, &start, &end);
6897 gtk_drag_set_icon_surface (context, surface);
6898 cairo_surface_destroy (surface);
6902 gtk_drag_set_icon_default (context);
6907 gtk_text_view_start_selection_dnd (GtkTextView *text_view,
6908 const GtkTextIter *iter,
6909 GdkEventMotion *event)
6911 GtkTargetList *target_list;
6913 text_view->priv->drag_start_x = -1;
6914 text_view->priv->drag_start_y = -1;
6915 text_view->priv->pending_place_cursor_button = 0;
6917 target_list = gtk_text_buffer_get_copy_target_list (get_buffer (text_view));
6919 g_signal_connect (text_view, "drag-begin",
6920 G_CALLBACK (drag_begin_cb), NULL);
6921 gtk_drag_begin (GTK_WIDGET (text_view), target_list,
6922 GDK_ACTION_COPY | GDK_ACTION_MOVE,
6923 1, (GdkEvent*)event);
6927 gtk_text_view_drag_begin (GtkWidget *widget,
6928 GdkDragContext *context)
6934 gtk_text_view_drag_end (GtkWidget *widget,
6935 GdkDragContext *context)
6940 gtk_text_view_drag_data_get (GtkWidget *widget,
6941 GdkDragContext *context,
6942 GtkSelectionData *selection_data,
6946 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
6947 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
6949 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
6951 gtk_selection_data_set (selection_data,
6952 gdk_atom_intern_static_string ("GTK_TEXT_BUFFER_CONTENTS"),
6957 else if (info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
6964 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
6966 /* Extract the selected text */
6967 str = gtk_text_buffer_serialize (buffer, buffer,
6968 gtk_selection_data_get_target (selection_data),
6975 gtk_selection_data_set (selection_data,
6976 gtk_selection_data_get_target (selection_data),
6978 (guchar *) str, len);
6988 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
6990 /* Extract the selected text */
6991 str = gtk_text_iter_get_visible_text (&start, &end);
6996 gtk_selection_data_set_text (selection_data, str, -1);
7003 gtk_text_view_drag_data_delete (GtkWidget *widget,
7004 GdkDragContext *context)
7006 gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->priv->buffer,
7007 TRUE, GTK_TEXT_VIEW (widget)->priv->editable);
7011 gtk_text_view_drag_leave (GtkWidget *widget,
7012 GdkDragContext *context,
7015 GtkTextView *text_view;
7016 GtkTextViewPrivate *priv;
7018 text_view = GTK_TEXT_VIEW (widget);
7019 priv = text_view->priv;
7021 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7023 if (priv->dnd_device)
7024 priv->dnd_device = NULL;
7026 if (priv->scroll_timeout != 0)
7027 g_source_remove (priv->scroll_timeout);
7029 priv->scroll_timeout = 0;
7033 gtk_text_view_drag_motion (GtkWidget *widget,
7034 GdkDragContext *context,
7039 GtkTextIter newplace;
7040 GtkTextView *text_view;
7041 GtkTextViewPrivate *priv;
7044 GdkRectangle target_rect;
7047 GdkDragAction suggested_action = 0;
7049 text_view = GTK_TEXT_VIEW (widget);
7050 priv = text_view->priv;
7052 target_rect = priv->text_window->allocation;
7054 if (x < target_rect.x ||
7055 y < target_rect.y ||
7056 x > (target_rect.x + target_rect.width) ||
7057 y > (target_rect.y + target_rect.height))
7058 return FALSE; /* outside the text window, allow parent widgets to handle event */
7060 gtk_text_view_window_to_buffer_coords (text_view,
7061 GTK_TEXT_WINDOW_WIDGET,
7065 gtk_text_layout_get_iter_at_pixel (priv->layout,
7069 target = gtk_drag_dest_find_target (widget, context,
7070 gtk_drag_dest_get_target_list (widget));
7072 if (target == GDK_NONE)
7074 /* can't accept any of the offered targets */
7076 else if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
7078 gtk_text_iter_compare (&newplace, &start) >= 0 &&
7079 gtk_text_iter_compare (&newplace, &end) <= 0)
7081 /* We're inside the selection. */
7085 if (gtk_text_iter_can_insert (&newplace, priv->editable))
7087 GtkWidget *source_widget;
7089 suggested_action = gdk_drag_context_get_suggested_action (context);
7091 source_widget = gtk_drag_get_source_widget (context);
7093 if (source_widget == widget)
7095 /* Default to MOVE, unless the user has
7096 * pressed ctrl or alt to affect available actions
7098 if ((gdk_drag_context_get_actions (context) & GDK_ACTION_MOVE) != 0)
7099 suggested_action = GDK_ACTION_MOVE;
7104 /* Can't drop here. */
7108 if (suggested_action != 0)
7110 gtk_text_mark_set_visible (priv->dnd_mark,
7111 priv->cursor_visible);
7113 gdk_drag_status (context, suggested_action, time);
7117 gdk_drag_status (context, 0, time);
7118 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7121 priv->dnd_device = gdk_drag_context_get_device (context);
7123 if (!priv->scroll_timeout)
7124 priv->scroll_timeout =
7125 gdk_threads_add_timeout (100, drag_scan_timeout, text_view);
7127 /* TRUE return means don't propagate the drag motion to parent
7128 * widgets that may also be drop sites.
7134 gtk_text_view_drag_drop (GtkWidget *widget,
7135 GdkDragContext *context,
7140 GtkTextView *text_view;
7141 GtkTextViewPrivate *priv;
7142 GtkTextIter drop_point;
7143 GdkAtom target = GDK_NONE;
7145 text_view = GTK_TEXT_VIEW (widget);
7146 priv = text_view->priv;
7148 if (priv->scroll_timeout != 0)
7149 g_source_remove (priv->scroll_timeout);
7151 priv->scroll_timeout = 0;
7153 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7155 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
7159 if (gtk_text_iter_can_insert (&drop_point, priv->editable))
7160 target = gtk_drag_dest_find_target (widget, context, NULL);
7162 if (target != GDK_NONE)
7163 gtk_drag_get_data (widget, context, target, time);
7165 gtk_drag_finish (context, FALSE, FALSE, time);
7171 insert_text_data (GtkTextView *text_view,
7172 GtkTextIter *drop_point,
7173 GtkSelectionData *selection_data)
7177 str = gtk_selection_data_get_text (selection_data);
7181 if (!gtk_text_buffer_insert_interactive (get_buffer (text_view),
7182 drop_point, (gchar *) str, -1,
7183 text_view->priv->editable))
7185 gtk_widget_error_bell (GTK_WIDGET (text_view));
7193 gtk_text_view_drag_data_received (GtkWidget *widget,
7194 GdkDragContext *context,
7197 GtkSelectionData *selection_data,
7201 GtkTextIter drop_point;
7202 GtkTextView *text_view;
7203 GtkTextViewPrivate *priv;
7204 gboolean success = FALSE;
7205 GtkTextBuffer *buffer = NULL;
7207 text_view = GTK_TEXT_VIEW (widget);
7208 priv = text_view->priv;
7210 if (!priv->dnd_mark)
7213 buffer = get_buffer (text_view);
7215 gtk_text_buffer_get_iter_at_mark (buffer,
7219 if (!gtk_text_iter_can_insert (&drop_point, priv->editable))
7224 gtk_text_buffer_begin_user_action (buffer);
7226 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
7228 GtkTextBuffer *src_buffer = NULL;
7229 GtkTextIter start, end;
7230 gboolean copy_tags = TRUE;
7232 if (gtk_selection_data_get_length (selection_data) != sizeof (src_buffer))
7235 memcpy (&src_buffer, gtk_selection_data_get_data (selection_data), sizeof (src_buffer));
7237 if (src_buffer == NULL)
7240 g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer));
7242 if (gtk_text_buffer_get_tag_table (src_buffer) !=
7243 gtk_text_buffer_get_tag_table (buffer))
7245 /* try to find a suitable rich text target instead */
7249 GdkAtom target = GDK_NONE;
7253 atoms = gtk_text_buffer_get_deserialize_formats (buffer, &n_atoms);
7255 for (list = gdk_drag_context_list_targets (context); list; list = g_list_next (list))
7259 for (i = 0; i < n_atoms; i++)
7260 if (GUINT_TO_POINTER (atoms[i]) == list->data)
7269 if (target != GDK_NONE)
7271 gtk_drag_get_data (widget, context, target, time);
7272 gtk_text_buffer_end_user_action (buffer);
7277 if (gtk_text_buffer_get_selection_bounds (src_buffer,
7282 gtk_text_buffer_insert_range_interactive (buffer,
7291 str = gtk_text_iter_get_visible_text (&start, &end);
7292 gtk_text_buffer_insert_interactive (buffer,
7293 &drop_point, str, -1,
7299 else if (gtk_selection_data_get_length (selection_data) > 0 &&
7300 info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
7303 GError *error = NULL;
7305 retval = gtk_text_buffer_deserialize (buffer, buffer,
7306 gtk_selection_data_get_target (selection_data),
7308 (guint8 *) gtk_selection_data_get_data (selection_data),
7309 gtk_selection_data_get_length (selection_data),
7314 g_warning ("error pasting: %s\n", error->message);
7315 g_clear_error (&error);
7319 insert_text_data (text_view, &drop_point, selection_data);
7322 gtk_drag_finish (context, success,
7323 success && gdk_drag_context_get_selected_action (context) == GDK_ACTION_MOVE,
7328 gtk_text_buffer_get_iter_at_mark (buffer,
7331 gtk_text_buffer_place_cursor (buffer, &drop_point);
7333 gtk_text_buffer_end_user_action (buffer);
7338 * gtk_text_view_get_hadjustment:
7339 * @text_view: a #GtkTextView
7341 * Gets the horizontal-scrolling #GtkAdjustment.
7343 * Returns: (transfer none): pointer to the horizontal #GtkAdjustment
7347 * Deprecated: 3.0: Use gtk_scrollable_get_hadjustment()
7350 gtk_text_view_get_hadjustment (GtkTextView *text_view)
7352 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
7354 return text_view->priv->hadjustment;
7358 gtk_text_view_set_hadjustment (GtkTextView *text_view,
7359 GtkAdjustment *adjustment)
7361 GtkTextViewPrivate *priv = text_view->priv;
7363 if (adjustment && priv->hadjustment == adjustment)
7366 if (priv->hadjustment != NULL)
7368 g_signal_handlers_disconnect_by_func (priv->hadjustment,
7369 gtk_text_view_value_changed,
7371 g_object_unref (priv->hadjustment);
7374 if (adjustment == NULL)
7375 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
7377 g_signal_connect (adjustment, "value-changed",
7378 G_CALLBACK (gtk_text_view_value_changed), text_view);
7379 priv->hadjustment = g_object_ref_sink (adjustment);
7380 gtk_text_view_set_hadjustment_values (text_view);
7382 g_object_notify (G_OBJECT (text_view), "hadjustment");
7386 * gtk_text_view_get_vadjustment:
7387 * @text_view: a #GtkTextView
7389 * Gets the vertical-scrolling #GtkAdjustment.
7391 * Returns: (transfer none): pointer to the vertical #GtkAdjustment
7395 * Deprecated: 3.0: Use gtk_scrollable_get_vadjustment()
7398 gtk_text_view_get_vadjustment (GtkTextView *text_view)
7400 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
7402 return text_view->priv->vadjustment;
7406 gtk_text_view_set_vadjustment (GtkTextView *text_view,
7407 GtkAdjustment *adjustment)
7409 GtkTextViewPrivate *priv = text_view->priv;
7411 if (adjustment && priv->vadjustment == adjustment)
7414 if (priv->vadjustment != NULL)
7416 g_signal_handlers_disconnect_by_func (priv->vadjustment,
7417 gtk_text_view_value_changed,
7419 g_object_unref (priv->vadjustment);
7422 if (adjustment == NULL)
7423 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
7425 g_signal_connect (adjustment, "value-changed",
7426 G_CALLBACK (gtk_text_view_value_changed), text_view);
7427 priv->vadjustment = g_object_ref_sink (adjustment);
7428 gtk_text_view_set_vadjustment_values (text_view);
7430 g_object_notify (G_OBJECT (text_view), "vadjustment");
7434 gtk_text_view_set_hadjustment_values (GtkTextView *text_view)
7436 GtkTextViewPrivate *priv;
7442 priv = text_view->priv;
7444 screen_width = SCREEN_WIDTH (text_view);
7445 old_value = gtk_adjustment_get_value (priv->hadjustment);
7446 new_upper = MAX (screen_width, priv->width);
7448 g_object_set (priv->hadjustment,
7451 "page-size", (gdouble)screen_width,
7452 "step-increment", screen_width * 0.1,
7453 "page-increment", screen_width * 0.9,
7456 new_value = CLAMP (old_value, 0, new_upper - screen_width);
7457 if (new_value != old_value)
7458 gtk_adjustment_set_value (priv->hadjustment, new_value);
7462 gtk_text_view_set_vadjustment_values (GtkTextView *text_view)
7464 GtkTextViewPrivate *priv;
7465 GtkTextIter first_para;
7472 priv = text_view->priv;
7474 screen_height = SCREEN_HEIGHT (text_view);
7475 old_value = gtk_adjustment_get_value (priv->vadjustment);
7476 new_upper = MAX (screen_height, priv->height);
7478 g_object_set (priv->vadjustment,
7481 "page-size", (gdouble)screen_height,
7482 "step-increment", screen_height * 0.1,
7483 "page-increment", screen_height * 0.9,
7486 /* Now adjust the value of the adjustment to keep the cursor at the
7487 * same place in the buffer */
7488 gtk_text_view_ensure_layout (text_view);
7489 gtk_text_view_get_first_para_iter (text_view, &first_para);
7490 gtk_text_layout_get_line_yrange (priv->layout, &first_para, &y, NULL);
7492 y += priv->first_para_pixels;
7494 new_value = CLAMP (y, 0, new_upper - screen_height);
7495 if (new_value != old_value)
7496 gtk_adjustment_set_value (priv->vadjustment, new_value);
7500 /* FIXME this adjust_allocation is a big cut-and-paste from
7501 * GtkCList, needs to be some "official" way to do this
7511 /* The window to which widget->window is relative */
7512 #define ALLOCATION_WINDOW(widget) \
7513 (!gtk_widget_get_has_window (widget) ? \
7514 gtk_widget_get_window (widget) : \
7515 gdk_window_get_parent (gtk_widget_get_window (widget)))
7518 adjust_allocation_recurse (GtkWidget *widget,
7521 GtkAllocation allocation;
7522 ScrollData *scroll_data = data;
7524 /* Need to really size allocate instead of just poking
7525 * into widget->allocation if the widget is not realized.
7526 * FIXME someone figure out why this was.
7528 gtk_widget_get_allocation (widget, &allocation);
7530 if (!gtk_widget_get_realized (widget))
7532 if (gtk_widget_get_visible (widget))
7534 GdkRectangle tmp_rectangle;
7536 tmp_rectangle = allocation;
7537 tmp_rectangle.x += scroll_data->dx;
7538 tmp_rectangle.y += scroll_data->dy;
7540 gtk_widget_size_allocate (widget, &tmp_rectangle);
7545 if (ALLOCATION_WINDOW (widget) == scroll_data->window)
7547 allocation.x += scroll_data->dx;
7548 allocation.y += scroll_data->dy;
7549 gtk_widget_set_allocation (widget, &allocation);
7551 if (GTK_IS_CONTAINER (widget))
7552 gtk_container_forall (GTK_CONTAINER (widget),
7553 adjust_allocation_recurse,
7560 adjust_allocation (GtkWidget *widget,
7564 ScrollData scroll_data;
7566 if (gtk_widget_get_realized (widget))
7567 scroll_data.window = ALLOCATION_WINDOW (widget);
7569 scroll_data.window = NULL;
7571 scroll_data.dx = dx;
7572 scroll_data.dy = dy;
7574 adjust_allocation_recurse (widget, &scroll_data);
7578 gtk_text_view_value_changed (GtkAdjustment *adjustment,
7579 GtkTextView *text_view)
7581 GtkTextViewPrivate *priv;
7587 priv = text_view->priv;
7589 /* Note that we oddly call this function with adjustment == NULL
7593 priv->onscreen_validated = FALSE;
7595 DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n",
7596 adjustment == priv->hadjustment ? "hadjustment" : adjustment == priv->vadjustment ? "vadjustment" : "none",
7597 adjustment ? gtk_adjustment_get_value (adjustment) : 0.0));
7599 if (adjustment == priv->hadjustment)
7601 dx = priv->xoffset - (gint)gtk_adjustment_get_value (adjustment);
7602 priv->xoffset = gtk_adjustment_get_value (adjustment);
7604 /* If the change is due to a size change we need
7605 * to invalidate the entire text window because there might be
7606 * right-aligned or centered text
7608 if (priv->width_changed)
7610 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7611 gdk_window_invalidate_rect (priv->text_window->bin_window, NULL, FALSE);
7613 priv->width_changed = FALSE;
7616 else if (adjustment == priv->vadjustment)
7618 dy = priv->yoffset - (gint)gtk_adjustment_get_value (adjustment);
7619 priv->yoffset = gtk_adjustment_get_value (adjustment);
7623 gtk_text_layout_get_line_at_y (priv->layout, &iter, gtk_adjustment_get_value (adjustment), &line_top);
7625 gtk_text_buffer_move_mark (get_buffer (text_view), priv->first_para_mark, &iter);
7627 priv->first_para_pixels = gtk_adjustment_get_value (adjustment) - line_top;
7631 if (dx != 0 || dy != 0)
7635 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7639 if (priv->left_window)
7640 text_window_scroll (priv->left_window, 0, dy);
7641 if (priv->right_window)
7642 text_window_scroll (priv->right_window, 0, dy);
7647 if (priv->top_window)
7648 text_window_scroll (priv->top_window, dx, 0);
7649 if (priv->bottom_window)
7650 text_window_scroll (priv->bottom_window, dx, 0);
7653 /* It looks nicer to scroll the main area last, because
7654 * it takes a while, and making the side areas update
7655 * afterward emphasizes the slowness of scrolling the
7658 text_window_scroll (priv->text_window, dx, dy);
7661 /* Children are now "moved" in the text window, poke
7662 * into widget->allocation for each child
7664 tmp_list = priv->children;
7665 while (tmp_list != NULL)
7667 GtkTextViewChild *child = tmp_list->data;
7670 adjust_allocation (child->widget, dx, dy);
7672 tmp_list = g_slist_next (tmp_list);
7676 /* This could result in invalidation, which would install the
7677 * first_validate_idle, which would validate onscreen;
7678 * but we're going to go ahead and validate here, so
7679 * first_validate_idle shouldn't have anything to do.
7681 gtk_text_view_update_layout_width (text_view);
7683 /* We also update the IM spot location here, since the IM context
7684 * might do something that leads to validation.
7686 gtk_text_view_update_im_spot_location (text_view);
7688 /* note that validation of onscreen could invoke this function
7689 * recursively, by scrolling to maintain first_para, or in response
7690 * to updating the layout width, however there is no problem with
7691 * that, or shouldn't be.
7693 gtk_text_view_validate_onscreen (text_view);
7695 /* process exposes */
7696 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7698 DV (g_print ("Processing updates (%s)\n", G_STRLOC));
7700 if (priv->left_window)
7701 gdk_window_process_updates (priv->left_window->bin_window, TRUE);
7703 if (priv->right_window)
7704 gdk_window_process_updates (priv->right_window->bin_window, TRUE);
7706 if (priv->top_window)
7707 gdk_window_process_updates (priv->top_window->bin_window, TRUE);
7709 if (priv->bottom_window)
7710 gdk_window_process_updates (priv->bottom_window->bin_window, TRUE);
7712 gdk_window_process_updates (priv->text_window->bin_window, TRUE);
7715 /* If this got installed, get rid of it, it's just a waste of time. */
7716 if (priv->first_validate_idle != 0)
7718 g_source_remove (priv->first_validate_idle);
7719 priv->first_validate_idle = 0;
7722 /* Finally we update the IM cursor location again, to ensure any
7723 * changes made by the validation are pushed through.
7725 gtk_text_view_update_im_spot_location (text_view);
7727 DV(g_print(">End scroll offset changed handler ("G_STRLOC")\n"));
7731 gtk_text_view_commit_handler (GtkIMContext *context,
7733 GtkTextView *text_view)
7735 gtk_text_view_commit_text (text_view, str);
7739 gtk_text_view_commit_text (GtkTextView *text_view,
7742 GtkTextViewPrivate *priv;
7743 gboolean had_selection;
7745 priv = text_view->priv;
7747 gtk_text_buffer_begin_user_action (get_buffer (text_view));
7749 had_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
7752 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
7755 if (!strcmp (str, "\n"))
7757 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
7760 gtk_widget_error_bell (GTK_WIDGET (text_view));
7765 if (!had_selection && priv->overwrite_mode)
7769 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
7771 gtk_text_buffer_get_insert (get_buffer (text_view)));
7772 if (!gtk_text_iter_ends_line (&insert))
7773 gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
7776 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
7779 gtk_widget_error_bell (GTK_WIDGET (text_view));
7783 gtk_text_buffer_end_user_action (get_buffer (text_view));
7785 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
7786 DV(g_print (G_STRLOC": scrolling onscreen\n"));
7787 gtk_text_view_scroll_mark_onscreen (text_view,
7788 gtk_text_buffer_get_insert (get_buffer (text_view)));
7792 gtk_text_view_preedit_changed_handler (GtkIMContext *context,
7793 GtkTextView *text_view)
7795 GtkTextViewPrivate *priv;
7797 PangoAttrList *attrs;
7801 priv = text_view->priv;
7803 gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter,
7804 gtk_text_buffer_get_insert (priv->buffer));
7806 /* Keypress events are passed to input method even if cursor position is
7807 * not editable; so beep here if it's multi-key input sequence, input
7808 * method will be reset in key-press-event handler.
7810 gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos);
7812 if (str && str[0] && !gtk_text_iter_can_insert (&iter, priv->editable))
7814 gtk_widget_error_bell (GTK_WIDGET (text_view));
7818 g_signal_emit (text_view, signals[PREEDIT_CHANGED], 0, str);
7821 gtk_text_layout_set_preedit_string (priv->layout, str, attrs, cursor_pos);
7822 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
7823 gtk_text_view_scroll_mark_onscreen (text_view,
7824 gtk_text_buffer_get_insert (get_buffer (text_view)));
7827 pango_attr_list_unref (attrs);
7832 gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
7833 GtkTextView *text_view)
7840 gtk_text_buffer_get_iter_at_mark (text_view->priv->buffer, &start,
7841 gtk_text_buffer_get_insert (text_view->priv->buffer));
7844 pos = gtk_text_iter_get_line_index (&start);
7845 gtk_text_iter_set_line_offset (&start, 0);
7846 gtk_text_iter_forward_to_line_end (&end);
7848 text = gtk_text_iter_get_slice (&start, &end);
7849 gtk_im_context_set_surrounding (context, text, -1, pos);
7856 gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
7859 GtkTextView *text_view)
7861 GtkTextViewPrivate *priv;
7865 priv = text_view->priv;
7867 gtk_text_buffer_get_iter_at_mark (priv->buffer, &start,
7868 gtk_text_buffer_get_insert (priv->buffer));
7871 gtk_text_iter_forward_chars (&start, offset);
7872 gtk_text_iter_forward_chars (&end, offset + n_chars);
7874 gtk_text_buffer_delete_interactive (priv->buffer, &start, &end,
7881 gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
7882 const GtkTextIter *location,
7886 GtkTextView *text_view = GTK_TEXT_VIEW (data);
7887 gboolean need_reset = FALSE;
7889 if (mark == gtk_text_buffer_get_insert (buffer))
7891 text_view->priv->virtual_cursor_x = -1;
7892 text_view->priv->virtual_cursor_y = -1;
7893 gtk_text_view_update_im_spot_location (text_view);
7896 else if (mark == gtk_text_buffer_get_selection_bound (buffer))
7902 gtk_text_view_reset_im_context (text_view);
7906 gtk_text_view_target_list_notify (GtkTextBuffer *buffer,
7907 const GParamSpec *pspec,
7910 GtkWidget *widget = GTK_WIDGET (data);
7911 GtkTargetList *view_list;
7912 GtkTargetList *buffer_list;
7915 view_list = gtk_drag_dest_get_target_list (widget);
7916 buffer_list = gtk_text_buffer_get_paste_target_list (buffer);
7919 gtk_target_list_ref (view_list);
7921 view_list = gtk_target_list_new (NULL, 0);
7923 list = view_list->list;
7926 GtkTargetPair *pair = list->data;
7928 list = g_list_next (list); /* get next element before removing */
7930 if (pair->info >= GTK_TEXT_BUFFER_TARGET_INFO_TEXT &&
7931 pair->info <= GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
7933 gtk_target_list_remove (view_list, pair->target);
7937 for (list = buffer_list->list; list; list = g_list_next (list))
7939 GtkTargetPair *pair = list->data;
7941 gtk_target_list_add (view_list, pair->target, pair->flags, pair->info);
7944 gtk_drag_dest_set_target_list (widget, view_list);
7945 gtk_target_list_unref (view_list);
7949 gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
7950 GtkTextIter *cursor,
7954 GtkTextViewPrivate *priv;
7958 priv = text_view->priv;
7963 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
7964 gtk_text_buffer_get_insert (get_buffer (text_view)));
7966 if ((x && priv->virtual_cursor_x == -1) ||
7967 (y && priv->virtual_cursor_y == -1))
7968 gtk_text_layout_get_cursor_locations (priv->layout, &insert, &pos, NULL);
7972 if (priv->virtual_cursor_x != -1)
7973 *x = priv->virtual_cursor_x;
7980 if (priv->virtual_cursor_x != -1)
7981 *y = priv->virtual_cursor_y;
7983 *y = pos.y + pos.height / 2;
7988 gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
7994 if (!text_view->priv->layout)
7997 if (x == -1 || y == -1)
7998 gtk_text_view_get_cursor_locations (text_view, NULL, &pos, NULL);
8000 text_view->priv->virtual_cursor_x = (x == -1) ? pos.x : x;
8001 text_view->priv->virtual_cursor_y = (y == -1) ? pos.y + pos.height / 2 : y;
8004 /* Quick hack of a popup menu
8007 activate_cb (GtkWidget *menuitem,
8008 GtkTextView *text_view)
8010 const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
8011 g_signal_emit_by_name (text_view, signal);
8015 append_action_signal (GtkTextView *text_view,
8017 const gchar *stock_id,
8018 const gchar *signal,
8021 GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
8023 g_object_set_data (G_OBJECT (menuitem), I_("gtk-signal"), (char *)signal);
8024 g_signal_connect (menuitem, "activate",
8025 G_CALLBACK (activate_cb), text_view);
8027 gtk_widget_set_sensitive (menuitem, sensitive);
8029 gtk_widget_show (menuitem);
8030 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
8034 gtk_text_view_select_all (GtkWidget *widget,
8037 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
8038 GtkTextBuffer *buffer;
8039 GtkTextIter start_iter, end_iter, insert;
8041 buffer = text_view->priv->buffer;
8044 gtk_text_buffer_get_bounds (buffer, &start_iter, &end_iter);
8045 gtk_text_buffer_select_range (buffer, &start_iter, &end_iter);
8049 gtk_text_buffer_get_iter_at_mark (buffer, &insert,
8050 gtk_text_buffer_get_insert (buffer));
8051 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &insert);
8056 select_all_cb (GtkWidget *menuitem,
8057 GtkTextView *text_view)
8059 gtk_text_view_select_all (GTK_WIDGET (text_view), TRUE);
8063 delete_cb (GtkTextView *text_view)
8065 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
8066 text_view->priv->editable);
8070 popup_menu_detach (GtkWidget *attach_widget,
8073 GTK_TEXT_VIEW (attach_widget)->priv->popup_menu = NULL;
8077 popup_position_func (GtkMenu *menu,
8083 GtkAllocation allocation;
8084 GtkTextView *text_view;
8086 GdkRectangle cursor_rect;
8087 GdkRectangle onscreen_rect;
8088 gint root_x, root_y;
8093 GdkRectangle monitor;
8095 text_view = GTK_TEXT_VIEW (user_data);
8096 widget = GTK_WIDGET (text_view);
8098 g_return_if_fail (gtk_widget_get_realized (widget));
8100 screen = gtk_widget_get_screen (widget);
8102 gdk_window_get_origin (gtk_widget_get_window (widget),
8105 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
8107 gtk_text_buffer_get_insert (get_buffer (text_view)));
8109 gtk_text_view_get_iter_location (text_view,
8113 gtk_text_view_get_visible_rect (text_view, &onscreen_rect);
8115 gtk_widget_get_preferred_size (text_view->priv->popup_menu,
8118 gtk_widget_get_allocation (widget, &allocation);
8120 /* can't use rectangle_intersect since cursor rect can have 0 width */
8121 if (cursor_rect.x >= onscreen_rect.x &&
8122 cursor_rect.x < onscreen_rect.x + onscreen_rect.width &&
8123 cursor_rect.y >= onscreen_rect.y &&
8124 cursor_rect.y < onscreen_rect.y + onscreen_rect.height)
8126 gtk_text_view_buffer_to_window_coords (text_view,
8127 GTK_TEXT_WINDOW_WIDGET,
8128 cursor_rect.x, cursor_rect.y,
8129 &cursor_rect.x, &cursor_rect.y);
8131 *x = root_x + cursor_rect.x + cursor_rect.width;
8132 *y = root_y + cursor_rect.y + cursor_rect.height;
8136 /* Just center the menu, since cursor is offscreen. */
8137 *x = root_x + (allocation.width / 2 - req.width / 2);
8138 *y = root_y + (allocation.height / 2 - req.height / 2);
8142 *x = CLAMP (*x, root_x, (root_x + allocation.width));
8143 *y = CLAMP (*y, root_y, (root_y + allocation.height));
8145 monitor_num = gdk_screen_get_monitor_at_point (screen, *x, *y);
8146 gtk_menu_set_monitor (menu, monitor_num);
8147 gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
8149 *x = CLAMP (*x, monitor.x, monitor.x + MAX (0, monitor.width - req.width));
8150 *y = CLAMP (*y, monitor.y, monitor.y + MAX (0, monitor.height - req.height));
8157 GtkTextView *text_view;
8164 range_contains_editable_text (const GtkTextIter *start,
8165 const GtkTextIter *end,
8166 gboolean default_editability)
8168 GtkTextIter iter = *start;
8170 while (gtk_text_iter_compare (&iter, end) < 0)
8172 if (gtk_text_iter_editable (&iter, default_editability))
8175 gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
8182 unichar_chosen_func (const char *text,
8185 GtkTextView *text_view = GTK_TEXT_VIEW (data);
8187 gtk_text_view_commit_text (text_view, text);
8191 popup_targets_received (GtkClipboard *clipboard,
8192 GtkSelectionData *data,
8195 PopupInfo *info = user_data;
8196 GtkTextView *text_view;
8197 GtkTextViewPrivate *priv;
8199 text_view = info->text_view;
8200 priv = text_view->priv;
8202 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
8204 /* We implicitely rely here on the fact that if we are pasting ourself, we'll
8205 * have text targets as well as the private GTK_TEXT_BUFFER_CONTENTS target.
8207 gboolean clipboard_contains_text;
8208 GtkWidget *menuitem;
8210 gboolean have_selection;
8211 gboolean can_insert;
8213 GtkTextIter sel_start, sel_end;
8214 gboolean show_input_method_menu;
8215 gboolean show_unicode_menu;
8217 clipboard_contains_text = gtk_selection_data_targets_include_text (data);
8219 if (priv->popup_menu)
8220 gtk_widget_destroy (priv->popup_menu);
8222 priv->popup_menu = gtk_menu_new ();
8224 gtk_menu_attach_to_widget (GTK_MENU (priv->popup_menu),
8225 GTK_WIDGET (text_view),
8228 have_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
8229 &sel_start, &sel_end);
8231 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
8233 gtk_text_buffer_get_insert (get_buffer (text_view)));
8235 can_insert = gtk_text_iter_can_insert (&iter, priv->editable);
8237 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_CUT, "cut-clipboard",
8239 range_contains_editable_text (&sel_start, &sel_end,
8241 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_COPY, "copy-clipboard",
8243 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_PASTE, "paste-clipboard",
8244 can_insert && clipboard_contains_text);
8246 menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_DELETE, NULL);
8247 gtk_widget_set_sensitive (menuitem,
8249 range_contains_editable_text (&sel_start, &sel_end,
8251 g_signal_connect_swapped (menuitem, "activate",
8252 G_CALLBACK (delete_cb), text_view);
8253 gtk_widget_show (menuitem);
8254 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8256 menuitem = gtk_separator_menu_item_new ();
8257 gtk_widget_show (menuitem);
8258 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8260 menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_SELECT_ALL, NULL);
8261 gtk_widget_set_sensitive (menuitem,
8262 gtk_text_buffer_get_char_count (priv->buffer) > 0);
8263 g_signal_connect (menuitem, "activate",
8264 G_CALLBACK (select_all_cb), text_view);
8265 gtk_widget_show (menuitem);
8266 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8268 g_object_get (gtk_widget_get_settings (GTK_WIDGET (text_view)),
8269 "gtk-show-input-method-menu", &show_input_method_menu,
8270 "gtk-show-unicode-menu", &show_unicode_menu,
8273 if (show_input_method_menu || show_unicode_menu)
8275 menuitem = gtk_separator_menu_item_new ();
8276 gtk_widget_show (menuitem);
8277 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8280 if (show_input_method_menu)
8282 menuitem = gtk_menu_item_new_with_mnemonic (_("Input _Methods"));
8283 gtk_widget_show (menuitem);
8284 gtk_widget_set_sensitive (menuitem, can_insert);
8286 submenu = gtk_menu_new ();
8287 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
8288 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8290 gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (priv->im_context),
8291 GTK_MENU_SHELL (submenu));
8294 if (show_unicode_menu)
8296 menuitem = gtk_menu_item_new_with_mnemonic (_("_Insert Unicode Control Character"));
8297 gtk_widget_show (menuitem);
8298 gtk_widget_set_sensitive (menuitem, can_insert);
8300 submenu = gtk_menu_new ();
8301 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
8302 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8304 _gtk_text_util_append_special_char_menuitems (GTK_MENU_SHELL (submenu),
8305 unichar_chosen_func,
8309 g_signal_emit (text_view,
8310 signals[POPULATE_POPUP],
8315 gtk_menu_popup_for_device (GTK_MENU (priv->popup_menu),
8316 info->device, NULL, NULL, NULL, NULL, NULL,
8317 info->button, info->time);
8320 gtk_menu_popup (GTK_MENU (priv->popup_menu), NULL, NULL,
8321 popup_position_func, text_view,
8322 0, gtk_get_current_event_time ());
8323 gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->popup_menu), FALSE);
8327 g_object_unref (text_view);
8332 gtk_text_view_do_popup (GtkTextView *text_view,
8333 GdkEventButton *event)
8335 PopupInfo *info = g_new (PopupInfo, 1);
8337 /* In order to know what entries we should make sensitive, we
8338 * ask for the current targets of the clipboard, and when
8339 * we get them, then we actually pop up the menu.
8341 info->text_view = g_object_ref (text_view);
8345 info->button = event->button;
8346 info->time = event->time;
8347 info->device = event->device;
8352 info->time = gtk_get_current_event_time ();
8353 info->device = NULL;
8356 gtk_clipboard_request_contents (gtk_widget_get_clipboard (GTK_WIDGET (text_view),
8357 GDK_SELECTION_CLIPBOARD),
8358 gdk_atom_intern_static_string ("TARGETS"),
8359 popup_targets_received,
8364 gtk_text_view_popup_menu (GtkWidget *widget)
8366 gtk_text_view_do_popup (GTK_TEXT_VIEW (widget), NULL);
8370 /* Child GdkWindows */
8373 static GtkTextWindow*
8374 text_window_new (GtkTextWindowType type,
8377 gint height_request)
8381 win = g_new (GtkTextWindow, 1);
8384 win->widget = widget;
8386 win->bin_window = NULL;
8387 win->requisition.width = width_request;
8388 win->requisition.height = height_request;
8389 win->allocation.width = width_request;
8390 win->allocation.height = height_request;
8391 win->allocation.x = 0;
8392 win->allocation.y = 0;
8398 text_window_free (GtkTextWindow *win)
8401 text_window_unrealize (win);
8407 text_window_realize (GtkTextWindow *win,
8410 GtkStyleContext *context;
8411 GtkStateFlags state;
8413 GdkWindowAttr attributes;
8414 gint attributes_mask;
8418 attributes.window_type = GDK_WINDOW_CHILD;
8419 attributes.x = win->allocation.x;
8420 attributes.y = win->allocation.y;
8421 attributes.width = win->allocation.width;
8422 attributes.height = win->allocation.height;
8423 attributes.wclass = GDK_INPUT_OUTPUT;
8424 attributes.visual = gtk_widget_get_visual (win->widget);
8425 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
8427 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
8429 window = gtk_widget_get_window (widget);
8431 win->window = gdk_window_new (window,
8432 &attributes, attributes_mask);
8434 gdk_window_show (win->window);
8435 gdk_window_set_user_data (win->window, win->widget);
8436 gdk_window_lower (win->window);
8440 attributes.width = win->allocation.width;
8441 attributes.height = win->allocation.height;
8442 attributes.event_mask = (GDK_EXPOSURE_MASK |
8444 GDK_KEY_PRESS_MASK |
8445 GDK_BUTTON_PRESS_MASK |
8446 GDK_BUTTON_RELEASE_MASK |
8447 GDK_POINTER_MOTION_MASK |
8448 GDK_POINTER_MOTION_HINT_MASK |
8449 gtk_widget_get_events (win->widget));
8451 win->bin_window = gdk_window_new (win->window,
8455 gdk_window_show (win->bin_window);
8456 gdk_window_set_user_data (win->bin_window, win->widget);
8458 context = gtk_widget_get_style_context (widget);
8459 state = gtk_widget_get_state_flags (widget);
8461 if (win->type == GTK_TEXT_WINDOW_TEXT)
8463 if (gtk_widget_is_sensitive (widget))
8466 cursor = gdk_cursor_new_for_display (gdk_window_get_display (window),
8468 gdk_window_set_cursor (win->bin_window, cursor);
8469 g_object_unref (cursor);
8472 gtk_im_context_set_client_window (GTK_TEXT_VIEW (widget)->priv->im_context,
8475 gtk_style_context_save (context);
8476 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
8478 gtk_style_context_get_background_color (context, state, &color);
8479 gdk_window_set_background_rgba (win->bin_window, &color);
8481 gtk_style_context_restore (context);
8485 gtk_style_context_get_background_color (context, state, &color);
8486 gdk_window_set_background_rgba (win->bin_window, &color);
8489 g_object_set_qdata (G_OBJECT (win->window),
8490 g_quark_from_static_string ("gtk-text-view-text-window"),
8493 g_object_set_qdata (G_OBJECT (win->bin_window),
8494 g_quark_from_static_string ("gtk-text-view-text-window"),
8499 text_window_unrealize (GtkTextWindow *win)
8501 if (win->type == GTK_TEXT_WINDOW_TEXT)
8503 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->priv->im_context,
8507 gdk_window_set_user_data (win->window, NULL);
8508 gdk_window_set_user_data (win->bin_window, NULL);
8509 gdk_window_destroy (win->bin_window);
8510 gdk_window_destroy (win->window);
8512 win->bin_window = NULL;
8516 text_window_size_allocate (GtkTextWindow *win,
8519 win->allocation = *rect;
8523 gdk_window_move_resize (win->window,
8525 rect->width, rect->height);
8527 gdk_window_resize (win->bin_window,
8528 rect->width, rect->height);
8533 text_window_scroll (GtkTextWindow *win,
8537 if (dx != 0 || dy != 0)
8539 gdk_window_scroll (win->bin_window, dx, dy);
8544 text_window_invalidate_rect (GtkTextWindow *win,
8547 GdkRectangle window_rect;
8549 gtk_text_view_buffer_to_window_coords (GTK_TEXT_VIEW (win->widget),
8556 window_rect.width = rect->width;
8557 window_rect.height = rect->height;
8559 /* Adjust the rect as appropriate */
8563 case GTK_TEXT_WINDOW_TEXT:
8566 case GTK_TEXT_WINDOW_LEFT:
8567 case GTK_TEXT_WINDOW_RIGHT:
8569 window_rect.width = win->allocation.width;
8572 case GTK_TEXT_WINDOW_TOP:
8573 case GTK_TEXT_WINDOW_BOTTOM:
8575 window_rect.height = win->allocation.height;
8579 g_warning ("%s: bug!", G_STRFUNC);
8584 gdk_window_invalidate_rect (win->bin_window, &window_rect, FALSE);
8588 cairo_t *cr = gdk_cairo_create (win->bin_window);
8589 gdk_cairo_rectangle (cr, &window_rect);
8590 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* red */
8598 text_window_invalidate_cursors (GtkTextWindow *win)
8600 GtkTextView *text_view;
8601 GtkTextViewPrivate *priv;
8603 GdkRectangle strong;
8605 gboolean draw_arrow;
8606 gfloat cursor_aspect_ratio;
8610 text_view = GTK_TEXT_VIEW (win->widget);
8611 priv = text_view->priv;
8613 gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter,
8614 gtk_text_buffer_get_insert (priv->buffer));
8616 if (_gtk_text_layout_get_block_cursor (priv->layout, &strong))
8618 text_window_invalidate_rect (win, &strong);
8622 gtk_text_layout_get_cursor_locations (priv->layout, &iter,
8625 /* cursor width calculation as in gtkstylecontext.c:draw_insertion_cursor(),
8626 * ignoring the text direction be exposing both sides of the cursor
8629 draw_arrow = (strong.x != weak.x || strong.y != weak.y);
8631 gtk_widget_style_get (win->widget,
8632 "cursor-aspect-ratio", &cursor_aspect_ratio,
8635 stem_width = strong.height * cursor_aspect_ratio + 1;
8636 arrow_width = stem_width + 1;
8638 strong.width = stem_width;
8640 /* round up to the next even number */
8644 strong.x -= stem_width / 2;
8645 strong.width += stem_width;
8649 strong.x -= arrow_width;
8650 strong.width += arrow_width * 2;
8653 text_window_invalidate_rect (win, &strong);
8655 if (draw_arrow) /* == have weak */
8657 stem_width = weak.height * cursor_aspect_ratio + 1;
8658 arrow_width = stem_width + 1;
8660 weak.width = stem_width;
8662 /* round up to the next even number */
8666 weak.x -= stem_width / 2;
8667 weak.width += stem_width;
8669 weak.x -= arrow_width;
8670 weak.width += arrow_width * 2;
8672 text_window_invalidate_rect (win, &weak);
8677 text_window_get_width (GtkTextWindow *win)
8679 return win->allocation.width;
8683 text_window_get_height (GtkTextWindow *win)
8685 return win->allocation.height;
8692 * gtk_text_view_get_window:
8693 * @text_view: a #GtkTextView
8694 * @win: window to get
8696 * Retrieves the #GdkWindow corresponding to an area of the text view;
8697 * possible windows include the overall widget window, child windows
8698 * on the left, right, top, bottom, and the window that displays the
8699 * text buffer. Windows are %NULL and nonexistent if their width or
8700 * height is 0, and are nonexistent before the widget has been
8703 * Return value: (transfer none): a #GdkWindow, or %NULL
8706 gtk_text_view_get_window (GtkTextView *text_view,
8707 GtkTextWindowType win)
8709 GtkTextViewPrivate *priv = text_view->priv;
8711 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
8715 case GTK_TEXT_WINDOW_WIDGET:
8716 return gtk_widget_get_window (GTK_WIDGET (text_view));
8719 case GTK_TEXT_WINDOW_TEXT:
8720 return priv->text_window->bin_window;
8723 case GTK_TEXT_WINDOW_LEFT:
8724 if (priv->left_window)
8725 return priv->left_window->bin_window;
8730 case GTK_TEXT_WINDOW_RIGHT:
8731 if (priv->right_window)
8732 return priv->right_window->bin_window;
8737 case GTK_TEXT_WINDOW_TOP:
8738 if (priv->top_window)
8739 return priv->top_window->bin_window;
8744 case GTK_TEXT_WINDOW_BOTTOM:
8745 if (priv->bottom_window)
8746 return priv->bottom_window->bin_window;
8751 case GTK_TEXT_WINDOW_PRIVATE:
8752 g_warning ("%s: You can't get GTK_TEXT_WINDOW_PRIVATE, it has \"PRIVATE\" in the name because it is private.", G_STRFUNC);
8757 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
8762 * gtk_text_view_get_window_type:
8763 * @text_view: a #GtkTextView
8764 * @window: a window type
8766 * Usually used to find out which window an event corresponds to.
8767 * If you connect to an event signal on @text_view, this function
8768 * should be called on <literal>event->window</literal> to
8769 * see which window it was.
8771 * Return value: the window type.
8774 gtk_text_view_get_window_type (GtkTextView *text_view,
8779 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
8780 g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
8782 if (window == gtk_widget_get_window (GTK_WIDGET (text_view)))
8783 return GTK_TEXT_WINDOW_WIDGET;
8785 win = g_object_get_qdata (G_OBJECT (window),
8786 g_quark_try_string ("gtk-text-view-text-window"));
8792 return GTK_TEXT_WINDOW_PRIVATE;
8797 buffer_to_widget (GtkTextView *text_view,
8803 GtkTextViewPrivate *priv = text_view->priv;
8807 *window_x = buffer_x - priv->xoffset;
8808 *window_x += priv->text_window->allocation.x;
8813 *window_y = buffer_y - priv->yoffset;
8814 *window_y += priv->text_window->allocation.y;
8819 widget_to_text_window (GtkTextWindow *win,
8826 *window_x = widget_x - win->allocation.x;
8829 *window_y = widget_y - win->allocation.y;
8833 buffer_to_text_window (GtkTextView *text_view,
8842 g_warning ("Attempt to convert text buffer coordinates to coordinates "
8843 "for a nonexistent or private child window of GtkTextView");
8847 buffer_to_widget (text_view,
8849 window_x, window_y);
8851 widget_to_text_window (win,
8852 window_x ? *window_x : 0,
8853 window_y ? *window_y : 0,
8859 * gtk_text_view_buffer_to_window_coords:
8860 * @text_view: a #GtkTextView
8861 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
8862 * @buffer_x: buffer x coordinate
8863 * @buffer_y: buffer y coordinate
8864 * @window_x: (out) (allow-none): window x coordinate return location or %NULL
8865 * @window_y: (out) (allow-none): window y coordinate return location or %NULL
8867 * Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window
8868 * @win, and stores the result in (@window_x, @window_y).
8870 * Note that you can't convert coordinates for a nonexisting window (see
8871 * gtk_text_view_set_border_window_size()).
8874 gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
8875 GtkTextWindowType win,
8881 GtkTextViewPrivate *priv = text_view->priv;
8883 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
8887 case GTK_TEXT_WINDOW_WIDGET:
8888 buffer_to_widget (text_view,
8890 window_x, window_y);
8893 case GTK_TEXT_WINDOW_TEXT:
8895 *window_x = buffer_x - priv->xoffset;
8897 *window_y = buffer_y - priv->yoffset;
8900 case GTK_TEXT_WINDOW_LEFT:
8901 buffer_to_text_window (text_view,
8904 window_x, window_y);
8907 case GTK_TEXT_WINDOW_RIGHT:
8908 buffer_to_text_window (text_view,
8911 window_x, window_y);
8914 case GTK_TEXT_WINDOW_TOP:
8915 buffer_to_text_window (text_view,
8918 window_x, window_y);
8921 case GTK_TEXT_WINDOW_BOTTOM:
8922 buffer_to_text_window (text_view,
8923 priv->bottom_window,
8925 window_x, window_y);
8928 case GTK_TEXT_WINDOW_PRIVATE:
8929 g_warning ("%s: can't get coords for private windows", G_STRFUNC);
8933 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
8939 widget_to_buffer (GtkTextView *text_view,
8945 GtkTextViewPrivate *priv = text_view->priv;
8949 *buffer_x = widget_x + priv->xoffset;
8950 *buffer_x -= priv->text_window->allocation.x;
8955 *buffer_y = widget_y + priv->yoffset;
8956 *buffer_y -= priv->text_window->allocation.y;
8961 text_window_to_widget (GtkTextWindow *win,
8968 *widget_x = window_x + win->allocation.x;
8971 *widget_y = window_y + win->allocation.y;
8975 text_window_to_buffer (GtkTextView *text_view,
8984 g_warning ("Attempt to convert GtkTextView buffer coordinates into "
8985 "coordinates for a nonexistent child window.");
8989 text_window_to_widget (win,
8995 widget_to_buffer (text_view,
8996 buffer_x ? *buffer_x : 0,
8997 buffer_y ? *buffer_y : 0,
9003 * gtk_text_view_window_to_buffer_coords:
9004 * @text_view: a #GtkTextView
9005 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
9006 * @window_x: window x coordinate
9007 * @window_y: window y coordinate
9008 * @buffer_x: (out) (allow-none): buffer x coordinate return location or %NULL
9009 * @buffer_y: (out) (allow-none): buffer y coordinate return location or %NULL
9011 * Converts coordinates on the window identified by @win to buffer
9012 * coordinates, storing the result in (@buffer_x,@buffer_y).
9014 * Note that you can't convert coordinates for a nonexisting window (see
9015 * gtk_text_view_set_border_window_size()).
9018 gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
9019 GtkTextWindowType win,
9025 GtkTextViewPrivate *priv = text_view->priv;
9027 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9031 case GTK_TEXT_WINDOW_WIDGET:
9032 widget_to_buffer (text_view,
9034 buffer_x, buffer_y);
9037 case GTK_TEXT_WINDOW_TEXT:
9039 *buffer_x = window_x + priv->xoffset;
9041 *buffer_y = window_y + priv->yoffset;
9044 case GTK_TEXT_WINDOW_LEFT:
9045 text_window_to_buffer (text_view,
9048 buffer_x, buffer_y);
9051 case GTK_TEXT_WINDOW_RIGHT:
9052 text_window_to_buffer (text_view,
9055 buffer_x, buffer_y);
9058 case GTK_TEXT_WINDOW_TOP:
9059 text_window_to_buffer (text_view,
9062 buffer_x, buffer_y);
9065 case GTK_TEXT_WINDOW_BOTTOM:
9066 text_window_to_buffer (text_view,
9067 priv->bottom_window,
9069 buffer_x, buffer_y);
9072 case GTK_TEXT_WINDOW_PRIVATE:
9073 g_warning ("%s: can't get coords for private windows", G_STRFUNC);
9077 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
9083 set_window_width (GtkTextView *text_view,
9085 GtkTextWindowType type,
9086 GtkTextWindow **winp)
9092 text_window_free (*winp);
9094 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9101 *winp = text_window_new (type,
9102 GTK_WIDGET (text_view),
9104 /* if the widget is already realized we need to realize the child manually */
9105 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9106 text_window_realize (*winp, GTK_WIDGET (text_view));
9110 if ((*winp)->requisition.width == width)
9113 (*winp)->requisition.width = width;
9116 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9122 set_window_height (GtkTextView *text_view,
9124 GtkTextWindowType type,
9125 GtkTextWindow **winp)
9131 text_window_free (*winp);
9133 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9140 *winp = text_window_new (type,
9141 GTK_WIDGET (text_view),
9144 /* if the widget is already realized we need to realize the child manually */
9145 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9146 text_window_realize (*winp, GTK_WIDGET (text_view));
9150 if ((*winp)->requisition.height == height)
9153 (*winp)->requisition.height = height;
9156 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9161 * gtk_text_view_set_border_window_size:
9162 * @text_view: a #GtkTextView
9163 * @type: window to affect
9164 * @size: width or height of the window
9166 * Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT,
9167 * or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM.
9168 * Automatically destroys the corresponding window if the size is set
9169 * to 0, and creates the window if the size is set to non-zero. This
9170 * function can only be used for the "border windows," it doesn't work
9171 * with #GTK_TEXT_WINDOW_WIDGET, #GTK_TEXT_WINDOW_TEXT, or
9172 * #GTK_TEXT_WINDOW_PRIVATE.
9175 gtk_text_view_set_border_window_size (GtkTextView *text_view,
9176 GtkTextWindowType type,
9179 GtkTextViewPrivate *priv = text_view->priv;
9181 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9182 g_return_if_fail (size >= 0);
9186 case GTK_TEXT_WINDOW_LEFT:
9187 set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT,
9188 &priv->left_window);
9191 case GTK_TEXT_WINDOW_RIGHT:
9192 set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT,
9193 &priv->right_window);
9196 case GTK_TEXT_WINDOW_TOP:
9197 set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP,
9201 case GTK_TEXT_WINDOW_BOTTOM:
9202 set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM,
9203 &priv->bottom_window);
9207 g_warning ("Can only set size of left/right/top/bottom border windows with gtk_text_view_set_border_window_size()");
9213 * gtk_text_view_get_border_window_size:
9214 * @text_view: a #GtkTextView
9215 * @type: window to return size from
9217 * Gets the width of the specified border window. See
9218 * gtk_text_view_set_border_window_size().
9220 * Return value: width of window
9223 gtk_text_view_get_border_window_size (GtkTextView *text_view,
9224 GtkTextWindowType type)
9226 GtkTextViewPrivate *priv = text_view->priv;
9228 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
9232 case GTK_TEXT_WINDOW_LEFT:
9233 if (priv->left_window)
9234 return priv->left_window->requisition.width;
9237 case GTK_TEXT_WINDOW_RIGHT:
9238 if (priv->right_window)
9239 return priv->right_window->requisition.width;
9242 case GTK_TEXT_WINDOW_TOP:
9243 if (priv->top_window)
9244 return priv->top_window->requisition.height;
9247 case GTK_TEXT_WINDOW_BOTTOM:
9248 if (priv->bottom_window)
9249 return priv->bottom_window->requisition.height;
9253 g_warning ("Can only get size of left/right/top/bottom border windows with gtk_text_view_get_border_window_size()");
9264 static GtkTextViewChild*
9265 text_view_child_new_anchored (GtkWidget *child,
9266 GtkTextChildAnchor *anchor,
9267 GtkTextLayout *layout)
9269 GtkTextViewChild *vc;
9271 vc = g_new (GtkTextViewChild, 1);
9273 vc->type = GTK_TEXT_WINDOW_PRIVATE;
9275 vc->anchor = anchor;
9277 vc->from_top_of_line = 0;
9278 vc->from_left_of_buffer = 0;
9280 g_object_ref (vc->widget);
9281 g_object_ref (vc->anchor);
9283 g_object_set_data (G_OBJECT (child),
9284 I_("gtk-text-view-child"),
9287 gtk_text_child_anchor_register_child (anchor, child, layout);
9292 static GtkTextViewChild*
9293 text_view_child_new_window (GtkWidget *child,
9294 GtkTextWindowType type,
9298 GtkTextViewChild *vc;
9300 vc = g_new (GtkTextViewChild, 1);
9305 vc->from_top_of_line = 0;
9306 vc->from_left_of_buffer = 0;
9308 g_object_ref (vc->widget);
9314 g_object_set_data (G_OBJECT (child),
9315 I_("gtk-text-view-child"),
9322 text_view_child_free (GtkTextViewChild *child)
9324 g_object_set_data (G_OBJECT (child->widget),
9325 I_("gtk-text-view-child"), NULL);
9329 gtk_text_child_anchor_unregister_child (child->anchor,
9331 g_object_unref (child->anchor);
9334 g_object_unref (child->widget);
9340 text_view_child_set_parent_window (GtkTextView *text_view,
9341 GtkTextViewChild *vc)
9344 gtk_widget_set_parent_window (vc->widget,
9345 text_view->priv->text_window->bin_window);
9349 window = gtk_text_view_get_window (text_view,
9351 gtk_widget_set_parent_window (vc->widget, window);
9356 add_child (GtkTextView *text_view,
9357 GtkTextViewChild *vc)
9359 text_view->priv->children = g_slist_prepend (text_view->priv->children,
9362 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9363 text_view_child_set_parent_window (text_view, vc);
9365 gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view));
9369 * gtk_text_view_add_child_at_anchor:
9370 * @text_view: a #GtkTextView
9371 * @child: a #GtkWidget
9372 * @anchor: a #GtkTextChildAnchor in the #GtkTextBuffer for @text_view
9374 * Adds a child widget in the text buffer, at the given @anchor.
9377 gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
9379 GtkTextChildAnchor *anchor)
9381 GtkTextViewChild *vc;
9383 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9384 g_return_if_fail (GTK_IS_WIDGET (child));
9385 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
9386 g_return_if_fail (gtk_widget_get_parent (child) == NULL);
9388 gtk_text_view_ensure_layout (text_view);
9390 vc = text_view_child_new_anchored (child, anchor,
9391 text_view->priv->layout);
9393 add_child (text_view, vc);
9395 g_assert (vc->widget == child);
9396 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9400 * gtk_text_view_add_child_in_window:
9401 * @text_view: a #GtkTextView
9402 * @child: a #GtkWidget
9403 * @which_window: which window the child should appear in
9404 * @xpos: X position of child in window coordinates
9405 * @ypos: Y position of child in window coordinates
9407 * Adds a child at fixed coordinates in one of the text widget's
9410 * The window must have nonzero size (see
9411 * gtk_text_view_set_border_window_size()). Note that the child
9412 * coordinates are given relative to the #GdkWindow in question, and
9413 * that these coordinates have no sane relationship to scrolling. When
9414 * placing a child in #GTK_TEXT_WINDOW_WIDGET, scrolling is
9415 * irrelevant, the child floats above all scrollable areas. But when
9416 * placing a child in one of the scrollable windows (border windows or
9417 * text window), you'll need to compute the child's correct position
9418 * in buffer coordinates any time scrolling occurs or buffer changes
9419 * occur, and then call gtk_text_view_move_child() to update the
9423 gtk_text_view_add_child_in_window (GtkTextView *text_view,
9425 GtkTextWindowType which_window,
9429 GtkTextViewChild *vc;
9431 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9432 g_return_if_fail (GTK_IS_WIDGET (child));
9433 g_return_if_fail (gtk_widget_get_parent (child) == NULL);
9435 vc = text_view_child_new_window (child, which_window,
9438 add_child (text_view, vc);
9440 g_assert (vc->widget == child);
9441 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9445 * gtk_text_view_move_child:
9446 * @text_view: a #GtkTextView
9447 * @child: child widget already added to the text view
9448 * @xpos: new X position in window coordinates
9449 * @ypos: new Y position in window coordinates
9451 * Updates the position of a child, as for gtk_text_view_add_child_in_window().
9454 gtk_text_view_move_child (GtkTextView *text_view,
9459 GtkTextViewChild *vc;
9461 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9462 g_return_if_fail (GTK_IS_WIDGET (child));
9463 g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9465 vc = g_object_get_data (G_OBJECT (child),
9466 "gtk-text-view-child");
9468 g_assert (vc != NULL);
9470 if (vc->x == xpos &&
9477 if (gtk_widget_get_visible (child) &&
9478 gtk_widget_get_visible (GTK_WIDGET (text_view)))
9479 gtk_widget_queue_resize (child);
9483 /* Iterator operations */
9486 * gtk_text_view_forward_display_line:
9487 * @text_view: a #GtkTextView
9488 * @iter: a #GtkTextIter
9490 * Moves the given @iter forward by one display (wrapped) line.
9491 * A display line is different from a paragraph. Paragraphs are
9492 * separated by newlines or other paragraph separator characters.
9493 * Display lines are created by line-wrapping a paragraph. If
9494 * wrapping is turned off, display lines and paragraphs will be the
9495 * same. Display lines are divided differently for each view, since
9496 * they depend on the view's width; paragraphs are the same in all
9497 * views, since they depend on the contents of the #GtkTextBuffer.
9499 * Return value: %TRUE if @iter was moved and is not on the end iterator
9502 gtk_text_view_forward_display_line (GtkTextView *text_view,
9505 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9506 g_return_val_if_fail (iter != NULL, FALSE);
9508 gtk_text_view_ensure_layout (text_view);
9510 return gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, iter);
9514 * gtk_text_view_backward_display_line:
9515 * @text_view: a #GtkTextView
9516 * @iter: a #GtkTextIter
9518 * Moves the given @iter backward by one display (wrapped) line.
9519 * A display line is different from a paragraph. Paragraphs are
9520 * separated by newlines or other paragraph separator characters.
9521 * Display lines are created by line-wrapping a paragraph. If
9522 * wrapping is turned off, display lines and paragraphs will be the
9523 * same. Display lines are divided differently for each view, since
9524 * they depend on the view's width; paragraphs are the same in all
9525 * views, since they depend on the contents of the #GtkTextBuffer.
9527 * Return value: %TRUE if @iter was moved and is not on the end iterator
9530 gtk_text_view_backward_display_line (GtkTextView *text_view,
9533 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9534 g_return_val_if_fail (iter != NULL, FALSE);
9536 gtk_text_view_ensure_layout (text_view);
9538 return gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, iter);
9542 * gtk_text_view_forward_display_line_end:
9543 * @text_view: a #GtkTextView
9544 * @iter: a #GtkTextIter
9546 * Moves the given @iter forward to the next display line end.
9547 * A display line is different from a paragraph. Paragraphs are
9548 * separated by newlines or other paragraph separator characters.
9549 * Display lines are created by line-wrapping a paragraph. If
9550 * wrapping is turned off, display lines and paragraphs will be the
9551 * same. Display lines are divided differently for each view, since
9552 * they depend on the view's width; paragraphs are the same in all
9553 * views, since they depend on the contents of the #GtkTextBuffer.
9555 * Return value: %TRUE if @iter was moved and is not on the end iterator
9558 gtk_text_view_forward_display_line_end (GtkTextView *text_view,
9561 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9562 g_return_val_if_fail (iter != NULL, FALSE);
9564 gtk_text_view_ensure_layout (text_view);
9566 return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, 1);
9570 * gtk_text_view_backward_display_line_start:
9571 * @text_view: a #GtkTextView
9572 * @iter: a #GtkTextIter
9574 * Moves the given @iter backward to the next display line start.
9575 * A display line is different from a paragraph. Paragraphs are
9576 * separated by newlines or other paragraph separator characters.
9577 * Display lines are created by line-wrapping a paragraph. If
9578 * wrapping is turned off, display lines and paragraphs will be the
9579 * same. Display lines are divided differently for each view, since
9580 * they depend on the view's width; paragraphs are the same in all
9581 * views, since they depend on the contents of the #GtkTextBuffer.
9583 * Return value: %TRUE if @iter was moved and is not on the end iterator
9586 gtk_text_view_backward_display_line_start (GtkTextView *text_view,
9589 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9590 g_return_val_if_fail (iter != NULL, FALSE);
9592 gtk_text_view_ensure_layout (text_view);
9594 return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, -1);
9598 * gtk_text_view_starts_display_line:
9599 * @text_view: a #GtkTextView
9600 * @iter: a #GtkTextIter
9602 * Determines whether @iter is at the start of a display line.
9603 * See gtk_text_view_forward_display_line() for an explanation of
9604 * display lines vs. paragraphs.
9606 * Return value: %TRUE if @iter begins a wrapped line
9609 gtk_text_view_starts_display_line (GtkTextView *text_view,
9610 const GtkTextIter *iter)
9612 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9613 g_return_val_if_fail (iter != NULL, FALSE);
9615 gtk_text_view_ensure_layout (text_view);
9617 return gtk_text_layout_iter_starts_line (text_view->priv->layout, iter);
9621 * gtk_text_view_move_visually:
9622 * @text_view: a #GtkTextView
9623 * @iter: a #GtkTextIter
9624 * @count: number of characters to move (negative moves left,
9625 * positive moves right)
9627 * Move the iterator a given number of characters visually, treating
9628 * it as the strong cursor position. If @count is positive, then the
9629 * new strong cursor position will be @count positions to the right of
9630 * the old cursor position. If @count is negative then the new strong
9631 * cursor position will be @count positions to the left of the old
9634 * In the presence of bi-directional text, the correspondence
9635 * between logical and visual order will depend on the direction
9636 * of the current run, and there may be jumps when the cursor
9637 * is moved off of the end of a run.
9639 * Return value: %TRUE if @iter moved and is not on the end iterator
9642 gtk_text_view_move_visually (GtkTextView *text_view,
9646 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9647 g_return_val_if_fail (iter != NULL, FALSE);
9649 gtk_text_view_ensure_layout (text_view);
9651 return gtk_text_layout_move_iter_visually (text_view->priv->layout, iter, count);