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"
59 * @Short_description: Widget that displays a GtkTextBuffer
61 * @See_also: #GtkTextBuffer, #GtkTextIter
63 * You may wish to begin by reading the <link linkend="TextWidget">text widget
64 * conceptual overview</link> which gives an overview of all the objects and data
65 * types related to the text widget and how they work together.
69 /* How scrolling, validation, exposes, etc. work.
71 * The expose_event handler has the invariant that the onscreen lines
72 * have been validated.
74 * There are two ways that onscreen lines can become invalid. The first
75 * is to change which lines are onscreen. This happens when the value
76 * of a scroll adjustment changes. So the code path begins in
77 * gtk_text_view_value_changed() and goes like this:
78 * - gdk_window_scroll() to reflect the new adjustment value
79 * - validate the lines that were moved onscreen
80 * - gdk_window_process_updates() to handle the exposes immediately
82 * The second way is that you get the "invalidated" signal from the layout,
83 * indicating that lines have become invalid. This code path begins in
84 * invalidated_handler() and goes like this:
85 * - install high-priority idle which does the rest of the steps
86 * - if a scroll is pending from scroll_to_mark(), do the scroll,
87 * jumping to the gtk_text_view_value_changed() code path
88 * - otherwise, validate the onscreen lines
89 * - DO NOT process updates
91 * In both cases, validating the onscreen lines can trigger a scroll
92 * due to maintaining the first_para on the top of the screen.
93 * If validation triggers a scroll, we jump to the top of the code path
94 * for value_changed, and bail out of the current code path.
96 * Also, in size_allocate, if we invalidate some lines from changing
97 * the layout width, we need to go ahead and run the high-priority idle,
98 * because GTK sends exposes right after doing the size allocates without
99 * returning to the main loop. This is also why the high-priority idle
100 * is at a higher priority than resizing.
105 #define DEBUG_VALIDATION_AND_SCROLLING
108 #ifdef DEBUG_VALIDATION_AND_SCROLLING
114 #define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->priv->text_window)
115 #define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->priv->text_window)
117 #define SPACE_FOR_CURSOR 1
119 #define GTK_TEXT_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_TEXT_VIEW, GtkTextViewPrivate))
121 typedef struct _GtkTextWindow GtkTextWindow;
122 typedef struct _GtkTextPendingScroll GtkTextPendingScroll;
124 struct _GtkTextViewPrivate
126 GtkTextLayout *layout;
127 GtkTextBuffer *buffer;
129 guint blink_time; /* time in msec the cursor has blinked since last user event */
132 GdkDevice *grab_device;
133 GdkDevice *dnd_device;
135 gulong selection_drag_handler;
136 guint scroll_timeout;
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 */
179 GtkTextMark *dnd_mark;
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 GtkIMContext *im_context;
186 GtkWidget *popup_menu;
193 GtkTextPendingScroll *pending_scroll;
195 gint pending_place_cursor_button;
197 /* Default style settings */
198 gint pixels_above_lines;
199 gint pixels_below_lines;
200 gint pixels_inside_wrap;
201 GtkWrapMode wrap_mode;
202 GtkJustification justify;
209 guint overwrite_mode : 1;
210 guint cursor_visible : 1;
212 /* if we have reset the IM since the last character entered */
213 guint need_im_reset : 1;
215 guint accepts_tab : 1;
217 guint width_changed : 1;
219 /* debug flag - means that we've validated onscreen since the
220 * last "invalidate" signal from the layout
222 guint onscreen_validated : 1;
224 guint mouse_cursor_obscured : 1;
226 guint scroll_after_paste : 1;
228 /* GtkScrollablePolicy needs to be checked when
229 * driving the scrollable adjustment values */
230 guint hscroll_policy : 1;
231 guint vscroll_policy : 1;
234 struct _GtkTextPendingScroll
237 gdouble within_margin;
258 TOGGLE_CURSOR_VISIBLE,
266 PROP_PIXELS_ABOVE_LINES,
267 PROP_PIXELS_BELOW_LINES,
268 PROP_PIXELS_INSIDE_WRAP,
287 static void gtk_text_view_finalize (GObject *object);
288 static void gtk_text_view_set_property (GObject *object,
292 static void gtk_text_view_get_property (GObject *object,
296 static void gtk_text_view_destroy (GtkWidget *widget);
297 static void gtk_text_view_size_request (GtkWidget *widget,
298 GtkRequisition *requisition);
299 static void gtk_text_view_get_preferred_width (GtkWidget *widget,
302 static void gtk_text_view_get_preferred_height (GtkWidget *widget,
305 static void gtk_text_view_size_allocate (GtkWidget *widget,
306 GtkAllocation *allocation);
307 static void gtk_text_view_realize (GtkWidget *widget);
308 static void gtk_text_view_unrealize (GtkWidget *widget);
309 static void gtk_text_view_style_updated (GtkWidget *widget);
310 static void gtk_text_view_direction_changed (GtkWidget *widget,
311 GtkTextDirection previous_direction);
312 static void gtk_text_view_grab_notify (GtkWidget *widget,
313 gboolean was_grabbed);
314 static void gtk_text_view_state_flags_changed (GtkWidget *widget,
315 GtkStateFlags previous_state);
317 static gint gtk_text_view_event (GtkWidget *widget,
319 static gint gtk_text_view_key_press_event (GtkWidget *widget,
321 static gint gtk_text_view_key_release_event (GtkWidget *widget,
323 static gint gtk_text_view_button_press_event (GtkWidget *widget,
324 GdkEventButton *event);
325 static gint gtk_text_view_button_release_event (GtkWidget *widget,
326 GdkEventButton *event);
327 static gint gtk_text_view_focus_in_event (GtkWidget *widget,
328 GdkEventFocus *event);
329 static gint gtk_text_view_focus_out_event (GtkWidget *widget,
330 GdkEventFocus *event);
331 static gint gtk_text_view_motion_event (GtkWidget *widget,
332 GdkEventMotion *event);
333 static gint gtk_text_view_draw (GtkWidget *widget,
335 static void gtk_text_view_draw_focus (GtkWidget *widget,
337 static gboolean gtk_text_view_focus (GtkWidget *widget,
338 GtkDirectionType direction);
339 static void gtk_text_view_select_all (GtkWidget *widget,
343 /* Source side drag signals */
344 static void gtk_text_view_drag_begin (GtkWidget *widget,
345 GdkDragContext *context);
346 static void gtk_text_view_drag_end (GtkWidget *widget,
347 GdkDragContext *context);
348 static void gtk_text_view_drag_data_get (GtkWidget *widget,
349 GdkDragContext *context,
350 GtkSelectionData *selection_data,
353 static void gtk_text_view_drag_data_delete (GtkWidget *widget,
354 GdkDragContext *context);
356 /* Target side drag signals */
357 static void gtk_text_view_drag_leave (GtkWidget *widget,
358 GdkDragContext *context,
360 static gboolean gtk_text_view_drag_motion (GtkWidget *widget,
361 GdkDragContext *context,
365 static gboolean gtk_text_view_drag_drop (GtkWidget *widget,
366 GdkDragContext *context,
370 static void gtk_text_view_drag_data_received (GtkWidget *widget,
371 GdkDragContext *context,
374 GtkSelectionData *selection_data,
378 static gboolean gtk_text_view_popup_menu (GtkWidget *widget);
380 static void gtk_text_view_move_cursor (GtkTextView *text_view,
381 GtkMovementStep step,
383 gboolean extend_selection);
384 static void gtk_text_view_move_viewport (GtkTextView *text_view,
387 static void gtk_text_view_set_anchor (GtkTextView *text_view);
388 static gboolean gtk_text_view_scroll_pages (GtkTextView *text_view,
390 gboolean extend_selection);
391 static gboolean gtk_text_view_scroll_hpages(GtkTextView *text_view,
393 gboolean extend_selection);
394 static void gtk_text_view_insert_at_cursor (GtkTextView *text_view,
396 static void gtk_text_view_delete_from_cursor (GtkTextView *text_view,
399 static void gtk_text_view_backspace (GtkTextView *text_view);
400 static void gtk_text_view_cut_clipboard (GtkTextView *text_view);
401 static void gtk_text_view_copy_clipboard (GtkTextView *text_view);
402 static void gtk_text_view_paste_clipboard (GtkTextView *text_view);
403 static void gtk_text_view_toggle_overwrite (GtkTextView *text_view);
404 static void gtk_text_view_toggle_cursor_visible (GtkTextView *text_view);
406 static void gtk_text_view_unselect (GtkTextView *text_view);
408 static void gtk_text_view_validate_onscreen (GtkTextView *text_view);
409 static void gtk_text_view_get_first_para_iter (GtkTextView *text_view,
411 static void gtk_text_view_update_layout_width (GtkTextView *text_view);
412 static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
413 GtkTextAttributes *values);
414 static void gtk_text_view_ensure_layout (GtkTextView *text_view);
415 static void gtk_text_view_destroy_layout (GtkTextView *text_view);
416 static void gtk_text_view_check_keymap_direction (GtkTextView *text_view);
417 static void gtk_text_view_start_selection_drag (GtkTextView *text_view,
418 const GtkTextIter *iter,
419 GdkEventButton *event);
420 static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view);
421 static void gtk_text_view_start_selection_dnd (GtkTextView *text_view,
422 const GtkTextIter *iter,
423 GdkEventMotion *event);
424 static void gtk_text_view_check_cursor_blink (GtkTextView *text_view);
425 static void gtk_text_view_pend_cursor_blink (GtkTextView *text_view);
426 static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view);
427 static void gtk_text_view_reset_blink_time (GtkTextView *text_view);
429 static void gtk_text_view_value_changed (GtkAdjustment *adjustment,
431 static void gtk_text_view_commit_handler (GtkIMContext *context,
433 GtkTextView *text_view);
434 static void gtk_text_view_commit_text (GtkTextView *text_view,
436 static void gtk_text_view_preedit_changed_handler (GtkIMContext *context,
437 GtkTextView *text_view);
438 static gboolean gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
439 GtkTextView *text_view);
440 static gboolean gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
443 GtkTextView *text_view);
445 static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
446 const GtkTextIter *location,
449 static void gtk_text_view_target_list_notify (GtkTextBuffer *buffer,
450 const GParamSpec *pspec,
452 static void gtk_text_view_paste_done_handler (GtkTextBuffer *buffer,
453 GtkClipboard *clipboard,
455 static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
459 static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
463 static void gtk_text_view_do_popup (GtkTextView *text_view,
464 GdkEventButton *event);
466 static void cancel_pending_scroll (GtkTextView *text_view);
467 static void gtk_text_view_queue_scroll (GtkTextView *text_view,
469 gdouble within_margin,
474 static gboolean gtk_text_view_flush_scroll (GtkTextView *text_view);
475 static void gtk_text_view_update_adjustments (GtkTextView *text_view);
476 static void gtk_text_view_invalidate (GtkTextView *text_view);
477 static void gtk_text_view_flush_first_validate (GtkTextView *text_view);
479 static void gtk_text_view_set_hadjustment (GtkTextView *text_view,
480 GtkAdjustment *adjustment);
481 static void gtk_text_view_set_vadjustment (GtkTextView *text_view,
482 GtkAdjustment *adjustment);
483 static void gtk_text_view_set_hadjustment_values (GtkTextView *text_view);
484 static void gtk_text_view_set_vadjustment_values (GtkTextView *text_view);
486 static void gtk_text_view_update_im_spot_location (GtkTextView *text_view);
488 /* Container methods */
489 static void gtk_text_view_add (GtkContainer *container,
491 static void gtk_text_view_remove (GtkContainer *container,
493 static void gtk_text_view_forall (GtkContainer *container,
494 gboolean include_internals,
495 GtkCallback callback,
496 gpointer callback_data);
498 /* FIXME probably need the focus methods. */
500 typedef struct _GtkTextViewChild GtkTextViewChild;
502 struct _GtkTextViewChild
506 GtkTextChildAnchor *anchor;
508 gint from_top_of_line;
509 gint from_left_of_buffer;
511 /* These are ignored if anchor != NULL */
512 GtkTextWindowType type;
517 static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child,
518 GtkTextChildAnchor *anchor,
519 GtkTextLayout *layout);
520 static GtkTextViewChild* text_view_child_new_window (GtkWidget *child,
521 GtkTextWindowType type,
524 static void text_view_child_free (GtkTextViewChild *child);
525 static void text_view_child_set_parent_window (GtkTextView *text_view,
526 GtkTextViewChild *child);
528 struct _GtkTextWindow
530 GtkTextWindowType type;
533 GdkWindow *bin_window;
534 GtkRequisition requisition;
535 GdkRectangle allocation;
538 static GtkTextWindow *text_window_new (GtkTextWindowType type,
541 gint height_request);
542 static void text_window_free (GtkTextWindow *win);
543 static void text_window_realize (GtkTextWindow *win,
545 static void text_window_unrealize (GtkTextWindow *win);
546 static void text_window_size_allocate (GtkTextWindow *win,
548 static void text_window_scroll (GtkTextWindow *win,
551 static void text_window_invalidate_rect (GtkTextWindow *win,
553 static void text_window_invalidate_cursors (GtkTextWindow *win);
555 static gint text_window_get_width (GtkTextWindow *win);
556 static gint text_window_get_height (GtkTextWindow *win);
559 static guint signals[LAST_SIGNAL] = { 0 };
561 G_DEFINE_TYPE_WITH_CODE (GtkTextView, gtk_text_view, GTK_TYPE_CONTAINER,
562 G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, NULL))
565 add_move_binding (GtkBindingSet *binding_set,
568 GtkMovementStep step,
571 g_assert ((modmask & GDK_SHIFT_MASK) == 0);
573 gtk_binding_entry_add_signal (binding_set, keyval, modmask,
577 G_TYPE_BOOLEAN, FALSE);
579 /* Selection-extending version */
580 gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
584 G_TYPE_BOOLEAN, TRUE);
588 gtk_text_view_class_init (GtkTextViewClass *klass)
590 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
591 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
592 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
593 GtkBindingSet *binding_set;
595 /* Default handlers and virtual methods
597 gobject_class->set_property = gtk_text_view_set_property;
598 gobject_class->get_property = gtk_text_view_get_property;
599 gobject_class->finalize = gtk_text_view_finalize;
601 widget_class->destroy = gtk_text_view_destroy;
602 widget_class->realize = gtk_text_view_realize;
603 widget_class->unrealize = gtk_text_view_unrealize;
604 widget_class->style_updated = gtk_text_view_style_updated;
605 widget_class->direction_changed = gtk_text_view_direction_changed;
606 widget_class->grab_notify = gtk_text_view_grab_notify;
607 widget_class->state_flags_changed = gtk_text_view_state_flags_changed;
608 widget_class->get_preferred_width = gtk_text_view_get_preferred_width;
609 widget_class->get_preferred_height = gtk_text_view_get_preferred_height;
610 widget_class->size_allocate = gtk_text_view_size_allocate;
611 widget_class->event = gtk_text_view_event;
612 widget_class->key_press_event = gtk_text_view_key_press_event;
613 widget_class->key_release_event = gtk_text_view_key_release_event;
614 widget_class->button_press_event = gtk_text_view_button_press_event;
615 widget_class->button_release_event = gtk_text_view_button_release_event;
616 widget_class->focus_in_event = gtk_text_view_focus_in_event;
617 widget_class->focus_out_event = gtk_text_view_focus_out_event;
618 widget_class->motion_notify_event = gtk_text_view_motion_event;
619 widget_class->draw = gtk_text_view_draw;
620 widget_class->focus = gtk_text_view_focus;
621 widget_class->drag_begin = gtk_text_view_drag_begin;
622 widget_class->drag_end = gtk_text_view_drag_end;
623 widget_class->drag_data_get = gtk_text_view_drag_data_get;
624 widget_class->drag_data_delete = gtk_text_view_drag_data_delete;
626 widget_class->drag_leave = gtk_text_view_drag_leave;
627 widget_class->drag_motion = gtk_text_view_drag_motion;
628 widget_class->drag_drop = gtk_text_view_drag_drop;
629 widget_class->drag_data_received = gtk_text_view_drag_data_received;
631 widget_class->popup_menu = gtk_text_view_popup_menu;
633 container_class->add = gtk_text_view_add;
634 container_class->remove = gtk_text_view_remove;
635 container_class->forall = gtk_text_view_forall;
637 klass->move_cursor = gtk_text_view_move_cursor;
638 klass->set_anchor = gtk_text_view_set_anchor;
639 klass->insert_at_cursor = gtk_text_view_insert_at_cursor;
640 klass->delete_from_cursor = gtk_text_view_delete_from_cursor;
641 klass->backspace = gtk_text_view_backspace;
642 klass->cut_clipboard = gtk_text_view_cut_clipboard;
643 klass->copy_clipboard = gtk_text_view_copy_clipboard;
644 klass->paste_clipboard = gtk_text_view_paste_clipboard;
645 klass->toggle_overwrite = gtk_text_view_toggle_overwrite;
651 g_object_class_install_property (gobject_class,
652 PROP_PIXELS_ABOVE_LINES,
653 g_param_spec_int ("pixels-above-lines",
654 P_("Pixels Above Lines"),
655 P_("Pixels of blank space above paragraphs"),
659 GTK_PARAM_READWRITE));
661 g_object_class_install_property (gobject_class,
662 PROP_PIXELS_BELOW_LINES,
663 g_param_spec_int ("pixels-below-lines",
664 P_("Pixels Below Lines"),
665 P_("Pixels of blank space below paragraphs"),
669 GTK_PARAM_READWRITE));
671 g_object_class_install_property (gobject_class,
672 PROP_PIXELS_INSIDE_WRAP,
673 g_param_spec_int ("pixels-inside-wrap",
674 P_("Pixels Inside Wrap"),
675 P_("Pixels of blank space between wrapped lines in a paragraph"),
679 GTK_PARAM_READWRITE));
681 g_object_class_install_property (gobject_class,
683 g_param_spec_boolean ("editable",
685 P_("Whether the text can be modified by the user"),
687 GTK_PARAM_READWRITE));
689 g_object_class_install_property (gobject_class,
691 g_param_spec_enum ("wrap-mode",
693 P_("Whether to wrap lines never, at word boundaries, or at character boundaries"),
696 GTK_PARAM_READWRITE));
698 g_object_class_install_property (gobject_class,
700 g_param_spec_enum ("justification",
702 P_("Left, right, or center justification"),
703 GTK_TYPE_JUSTIFICATION,
705 GTK_PARAM_READWRITE));
707 g_object_class_install_property (gobject_class,
709 g_param_spec_int ("left-margin",
711 P_("Width of the left margin in pixels"),
715 GTK_PARAM_READWRITE));
717 g_object_class_install_property (gobject_class,
719 g_param_spec_int ("right-margin",
721 P_("Width of the right margin in pixels"),
725 GTK_PARAM_READWRITE));
727 g_object_class_install_property (gobject_class,
729 g_param_spec_int ("indent",
731 P_("Amount to indent the paragraph, in pixels"),
735 GTK_PARAM_READWRITE));
737 g_object_class_install_property (gobject_class,
739 g_param_spec_boxed ("tabs",
741 P_("Custom tabs for this text"),
742 PANGO_TYPE_TAB_ARRAY,
743 GTK_PARAM_READWRITE));
745 g_object_class_install_property (gobject_class,
747 g_param_spec_boolean ("cursor-visible",
748 P_("Cursor Visible"),
749 P_("If the insertion cursor is shown"),
751 GTK_PARAM_READWRITE));
753 g_object_class_install_property (gobject_class,
755 g_param_spec_object ("buffer",
757 P_("The buffer which is displayed"),
758 GTK_TYPE_TEXT_BUFFER,
759 GTK_PARAM_READWRITE));
761 g_object_class_install_property (gobject_class,
763 g_param_spec_boolean ("overwrite",
764 P_("Overwrite mode"),
765 P_("Whether entered text overwrites existing contents"),
767 GTK_PARAM_READWRITE));
769 g_object_class_install_property (gobject_class,
771 g_param_spec_boolean ("accepts-tab",
773 P_("Whether Tab will result in a tab character being entered"),
775 GTK_PARAM_READWRITE));
778 * GtkTextView:im-module:
780 * Which IM (input method) module should be used for this entry.
783 * Setting this to a non-%NULL value overrides the
784 * system-wide IM module setting. See the GtkSettings
785 * #GtkSettings:gtk-im-module property.
789 g_object_class_install_property (gobject_class,
791 g_param_spec_string ("im-module",
793 P_("Which IM module should be used"),
795 GTK_PARAM_READWRITE));
797 /* GtkScrollable interface */
798 g_object_class_override_property (gobject_class, PROP_HADJUSTMENT, "hadjustment");
799 g_object_class_override_property (gobject_class, PROP_VADJUSTMENT, "vadjustment");
800 g_object_class_override_property (gobject_class, PROP_HSCROLL_POLICY, "hscroll-policy");
801 g_object_class_override_property (gobject_class, PROP_VSCROLL_POLICY, "vscroll-policy");
806 gtk_widget_class_install_style_property (widget_class,
807 g_param_spec_boxed ("error-underline-color",
808 P_("Error underline color"),
809 P_("Color with which to draw error-indication underlines"),
811 GTK_PARAM_READABLE));
818 * GtkTextView::move-cursor:
819 * @text_view: the object which received the signal
820 * @step: the granularity of the move, as a #GtkMovementStep
821 * @count: the number of @step units to move
822 * @extend_selection: %TRUE if the move should extend the selection
824 * The ::move-cursor signal is a
825 * <link linkend="keybinding-signals">keybinding signal</link>
826 * which gets emitted when the user initiates a cursor movement.
827 * If the cursor is not visible in @text_view, this signal causes
828 * the viewport to be moved instead.
830 * Applications should not connect to it, but may emit it with
831 * g_signal_emit_by_name() if they need to control the cursor
834 * The default bindings for this signal come in two variants,
835 * the variant with the Shift modifier extends the selection,
836 * the variant without the Shift modifer does not.
837 * There are too many key combinations to list them all here.
839 * <listitem>Arrow keys move by individual characters/lines</listitem>
840 * <listitem>Ctrl-arrow key combinations move by words/paragraphs</listitem>
841 * <listitem>Home/End keys move to the ends of the buffer</listitem>
842 * <listitem>PageUp/PageDown keys move vertically by pages</listitem>
843 * <listitem>Ctrl-PageUp/PageDown keys move horizontally by pages</listitem>
846 signals[MOVE_CURSOR] =
847 g_signal_new (I_("move-cursor"),
848 G_OBJECT_CLASS_TYPE (gobject_class),
849 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
850 G_STRUCT_OFFSET (GtkTextViewClass, move_cursor),
852 _gtk_marshal_VOID__ENUM_INT_BOOLEAN,
854 GTK_TYPE_MOVEMENT_STEP,
859 * GtkTextView::move-viewport:
860 * @text_view: the object which received the signal
861 * @step: the granularity of the move, as a #GtkMovementStep
862 * @count: the number of @step units to move
864 * The ::move-viewport signal is a
865 * <link linkend="keybinding-signals">keybinding signal</link>
866 * which can be bound to key combinations to allow the user
867 * to move the viewport, i.e. change what part of the text view
868 * is visible in a containing scrolled window.
870 * There are no default bindings for this signal.
872 signals[MOVE_VIEWPORT] =
873 g_signal_new_class_handler (I_("move-viewport"),
874 G_OBJECT_CLASS_TYPE (gobject_class),
875 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
876 G_CALLBACK (gtk_text_view_move_viewport),
878 _gtk_marshal_VOID__ENUM_INT,
880 GTK_TYPE_SCROLL_STEP,
884 * GtkTextView::set-anchor:
885 * @text_view: the object which received the signal
887 * The ::set-anchor signal is a
888 * <link linkend="keybinding-signals">keybinding signal</link>
889 * which gets emitted when the user initiates setting the "anchor"
890 * mark. The "anchor" mark gets placed at the same position as the
893 * This signal has no default bindings.
895 signals[SET_ANCHOR] =
896 g_signal_new (I_("set-anchor"),
897 G_OBJECT_CLASS_TYPE (gobject_class),
898 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
899 G_STRUCT_OFFSET (GtkTextViewClass, set_anchor),
901 _gtk_marshal_VOID__VOID,
905 * GtkTextView::insert-at-cursor:
906 * @text_view: the object which received the signal
907 * @string: the string to insert
909 * The ::insert-at-cursor signal is a
910 * <link linkend="keybinding-signals">keybinding signal</link>
911 * which gets emitted when the user initiates the insertion of a
912 * fixed string at the cursor.
914 * This signal has no default bindings.
916 signals[INSERT_AT_CURSOR] =
917 g_signal_new (I_("insert-at-cursor"),
918 G_OBJECT_CLASS_TYPE (gobject_class),
919 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
920 G_STRUCT_OFFSET (GtkTextViewClass, insert_at_cursor),
922 _gtk_marshal_VOID__STRING,
927 * GtkTextView::delete-from-cursor:
928 * @text_view: the object which received the signal
929 * @type: the granularity of the deletion, as a #GtkDeleteType
930 * @count: the number of @type units to delete
932 * The ::delete-from-cursor signal is a
933 * <link linkend="keybinding-signals">keybinding signal</link>
934 * which gets emitted when the user initiates a text deletion.
936 * If the @type is %GTK_DELETE_CHARS, GTK+ deletes the selection
937 * if there is one, otherwise it deletes the requested number
940 * The default bindings for this signal are
941 * Delete for deleting a character, Ctrl-Delete for
942 * deleting a word and Ctrl-Backspace for deleting a word
945 signals[DELETE_FROM_CURSOR] =
946 g_signal_new (I_("delete-from-cursor"),
947 G_OBJECT_CLASS_TYPE (gobject_class),
948 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
949 G_STRUCT_OFFSET (GtkTextViewClass, delete_from_cursor),
951 _gtk_marshal_VOID__ENUM_INT,
953 GTK_TYPE_DELETE_TYPE,
957 * GtkTextView::backspace:
958 * @text_view: the object which received the signal
960 * The ::backspace signal is a
961 * <link linkend="keybinding-signals">keybinding signal</link>
962 * which gets emitted when the user asks for it.
964 * The default bindings for this signal are
965 * Backspace and Shift-Backspace.
968 g_signal_new (I_("backspace"),
969 G_OBJECT_CLASS_TYPE (gobject_class),
970 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
971 G_STRUCT_OFFSET (GtkTextViewClass, backspace),
973 _gtk_marshal_VOID__VOID,
977 * GtkTextView::cut-clipboard:
978 * @text_view: the object which received the signal
980 * The ::cut-clipboard signal is a
981 * <link linkend="keybinding-signals">keybinding signal</link>
982 * which gets emitted to cut the selection to the clipboard.
984 * The default bindings for this signal are
985 * Ctrl-x and Shift-Delete.
987 signals[CUT_CLIPBOARD] =
988 g_signal_new (I_("cut-clipboard"),
989 G_OBJECT_CLASS_TYPE (gobject_class),
990 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
991 G_STRUCT_OFFSET (GtkTextViewClass, cut_clipboard),
993 _gtk_marshal_VOID__VOID,
997 * GtkTextView::copy-clipboard:
998 * @text_view: the object which received the signal
1000 * The ::copy-clipboard signal is a
1001 * <link linkend="keybinding-signals">keybinding signal</link>
1002 * which gets emitted to copy the selection to the clipboard.
1004 * The default bindings for this signal are
1005 * Ctrl-c and Ctrl-Insert.
1007 signals[COPY_CLIPBOARD] =
1008 g_signal_new (I_("copy-clipboard"),
1009 G_OBJECT_CLASS_TYPE (gobject_class),
1010 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1011 G_STRUCT_OFFSET (GtkTextViewClass, copy_clipboard),
1013 _gtk_marshal_VOID__VOID,
1017 * GtkTextView::paste-clipboard:
1018 * @text_view: the object which received the signal
1020 * The ::paste-clipboard signal is a
1021 * <link linkend="keybinding-signals">keybinding signal</link>
1022 * which gets emitted to paste the contents of the clipboard
1023 * into the text view.
1025 * The default bindings for this signal are
1026 * Ctrl-v and Shift-Insert.
1028 signals[PASTE_CLIPBOARD] =
1029 g_signal_new (I_("paste-clipboard"),
1030 G_OBJECT_CLASS_TYPE (gobject_class),
1031 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1032 G_STRUCT_OFFSET (GtkTextViewClass, paste_clipboard),
1034 _gtk_marshal_VOID__VOID,
1038 * GtkTextView::toggle-overwrite:
1039 * @text_view: the object which received the signal
1041 * The ::toggle-overwrite signal is a
1042 * <link linkend="keybinding-signals">keybinding signal</link>
1043 * which gets emitted to toggle the overwrite mode of the text view.
1045 * The default bindings for this signal is Insert.
1047 signals[TOGGLE_OVERWRITE] =
1048 g_signal_new (I_("toggle-overwrite"),
1049 G_OBJECT_CLASS_TYPE (gobject_class),
1050 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1051 G_STRUCT_OFFSET (GtkTextViewClass, toggle_overwrite),
1053 _gtk_marshal_VOID__VOID,
1057 * GtkTextView::populate-popup:
1058 * @entry: The text view on which the signal is emitted
1059 * @menu: the menu that is being populated
1061 * The ::populate-popup signal gets emitted before showing the
1062 * context menu of the text view.
1064 * If you need to add items to the context menu, connect
1065 * to this signal and append your menuitems to the @menu.
1067 signals[POPULATE_POPUP] =
1068 g_signal_new (I_("populate-popup"),
1069 G_OBJECT_CLASS_TYPE (gobject_class),
1071 G_STRUCT_OFFSET (GtkTextViewClass, populate_popup),
1073 _gtk_marshal_VOID__OBJECT,
1078 * GtkTextView::select-all:
1079 * @text_view: the object which received the signal
1080 * @select: %TRUE to select, %FALSE to unselect
1082 * The ::select-all signal is a
1083 * <link linkend="keybinding-signals">keybinding signal</link>
1084 * which gets emitted to select or unselect the complete
1085 * contents of the text view.
1087 * The default bindings for this signal are Ctrl-a and Ctrl-/
1088 * for selecting and Shift-Ctrl-a and Ctrl-\ for unselecting.
1090 signals[SELECT_ALL] =
1091 g_signal_new_class_handler (I_("select-all"),
1092 G_OBJECT_CLASS_TYPE (gobject_class),
1093 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1094 G_CALLBACK (gtk_text_view_select_all),
1096 _gtk_marshal_VOID__BOOLEAN,
1097 G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
1100 * GtkTextView::toggle-cursor-visible:
1101 * @text_view: the object which received the signal
1103 * The ::toggle-cursor-visible signal is a
1104 * <link linkend="keybinding-signals">keybinding signal</link>
1105 * which gets emitted to toggle the visibility of the cursor.
1107 * The default binding for this signal is F7.
1109 signals[TOGGLE_CURSOR_VISIBLE] =
1110 g_signal_new_class_handler (I_("toggle-cursor-visible"),
1111 G_OBJECT_CLASS_TYPE (gobject_class),
1112 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1113 G_CALLBACK (gtk_text_view_toggle_cursor_visible),
1115 _gtk_marshal_VOID__VOID,
1119 * GtkTextView::preedit-changed:
1120 * @text_view: the object which received the signal
1121 * @preedit: the current preedit string
1123 * If an input method is used, the typed text will not immediately
1124 * be committed to the buffer. So if you are interested in the text,
1125 * connect to this signal.
1127 * This signal is only emitted if the text at the given position
1128 * is actually editable.
1132 signals[PREEDIT_CHANGED] =
1133 g_signal_new_class_handler (I_("preedit-changed"),
1134 G_OBJECT_CLASS_TYPE (gobject_class),
1135 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1138 _gtk_marshal_VOID__STRING,
1146 binding_set = gtk_binding_set_by_class (klass);
1148 /* Moving the insertion point */
1149 add_move_binding (binding_set, GDK_KEY_Right, 0,
1150 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
1152 add_move_binding (binding_set, GDK_KEY_KP_Right, 0,
1153 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
1155 add_move_binding (binding_set, GDK_KEY_Left, 0,
1156 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
1158 add_move_binding (binding_set, GDK_KEY_KP_Left, 0,
1159 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
1161 add_move_binding (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK,
1162 GTK_MOVEMENT_WORDS, 1);
1164 add_move_binding (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK,
1165 GTK_MOVEMENT_WORDS, 1);
1167 add_move_binding (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK,
1168 GTK_MOVEMENT_WORDS, -1);
1170 add_move_binding (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK,
1171 GTK_MOVEMENT_WORDS, -1);
1173 add_move_binding (binding_set, GDK_KEY_Up, 0,
1174 GTK_MOVEMENT_DISPLAY_LINES, -1);
1176 add_move_binding (binding_set, GDK_KEY_KP_Up, 0,
1177 GTK_MOVEMENT_DISPLAY_LINES, -1);
1179 add_move_binding (binding_set, GDK_KEY_Down, 0,
1180 GTK_MOVEMENT_DISPLAY_LINES, 1);
1182 add_move_binding (binding_set, GDK_KEY_KP_Down, 0,
1183 GTK_MOVEMENT_DISPLAY_LINES, 1);
1185 add_move_binding (binding_set, GDK_KEY_Up, GDK_CONTROL_MASK,
1186 GTK_MOVEMENT_PARAGRAPHS, -1);
1188 add_move_binding (binding_set, GDK_KEY_KP_Up, GDK_CONTROL_MASK,
1189 GTK_MOVEMENT_PARAGRAPHS, -1);
1191 add_move_binding (binding_set, GDK_KEY_Down, GDK_CONTROL_MASK,
1192 GTK_MOVEMENT_PARAGRAPHS, 1);
1194 add_move_binding (binding_set, GDK_KEY_KP_Down, GDK_CONTROL_MASK,
1195 GTK_MOVEMENT_PARAGRAPHS, 1);
1197 add_move_binding (binding_set, GDK_KEY_Home, 0,
1198 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
1200 add_move_binding (binding_set, GDK_KEY_KP_Home, 0,
1201 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
1203 add_move_binding (binding_set, GDK_KEY_End, 0,
1204 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
1206 add_move_binding (binding_set, GDK_KEY_KP_End, 0,
1207 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
1209 add_move_binding (binding_set, GDK_KEY_Home, GDK_CONTROL_MASK,
1210 GTK_MOVEMENT_BUFFER_ENDS, -1);
1212 add_move_binding (binding_set, GDK_KEY_KP_Home, GDK_CONTROL_MASK,
1213 GTK_MOVEMENT_BUFFER_ENDS, -1);
1215 add_move_binding (binding_set, GDK_KEY_End, GDK_CONTROL_MASK,
1216 GTK_MOVEMENT_BUFFER_ENDS, 1);
1218 add_move_binding (binding_set, GDK_KEY_KP_End, GDK_CONTROL_MASK,
1219 GTK_MOVEMENT_BUFFER_ENDS, 1);
1221 add_move_binding (binding_set, GDK_KEY_Page_Up, 0,
1222 GTK_MOVEMENT_PAGES, -1);
1224 add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0,
1225 GTK_MOVEMENT_PAGES, -1);
1227 add_move_binding (binding_set, GDK_KEY_Page_Down, 0,
1228 GTK_MOVEMENT_PAGES, 1);
1230 add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0,
1231 GTK_MOVEMENT_PAGES, 1);
1233 add_move_binding (binding_set, GDK_KEY_Page_Up, GDK_CONTROL_MASK,
1234 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
1236 add_move_binding (binding_set, GDK_KEY_KP_Page_Up, GDK_CONTROL_MASK,
1237 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
1239 add_move_binding (binding_set, GDK_KEY_Page_Down, GDK_CONTROL_MASK,
1240 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
1242 add_move_binding (binding_set, GDK_KEY_KP_Page_Down, GDK_CONTROL_MASK,
1243 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
1246 gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK,
1248 G_TYPE_BOOLEAN, TRUE);
1250 gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK,
1252 G_TYPE_BOOLEAN, TRUE);
1255 gtk_binding_entry_add_signal (binding_set, GDK_KEY_backslash, GDK_CONTROL_MASK,
1257 G_TYPE_BOOLEAN, FALSE);
1259 gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1261 G_TYPE_BOOLEAN, FALSE);
1264 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, 0,
1265 "delete-from-cursor", 2,
1266 G_TYPE_ENUM, GTK_DELETE_CHARS,
1269 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, 0,
1270 "delete-from-cursor", 2,
1271 G_TYPE_ENUM, GTK_DELETE_CHARS,
1274 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0,
1277 /* Make this do the same as Backspace, to help with mis-typing */
1278 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK,
1281 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_CONTROL_MASK,
1282 "delete-from-cursor", 2,
1283 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1286 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_CONTROL_MASK,
1287 "delete-from-cursor", 2,
1288 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1291 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK,
1292 "delete-from-cursor", 2,
1293 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1296 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1297 "delete-from-cursor", 2,
1298 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1301 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1302 "delete-from-cursor", 2,
1303 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1306 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1307 "delete-from-cursor", 2,
1308 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1311 /* Cut/copy/paste */
1313 gtk_binding_entry_add_signal (binding_set, GDK_KEY_x, GDK_CONTROL_MASK,
1314 "cut-clipboard", 0);
1315 gtk_binding_entry_add_signal (binding_set, GDK_KEY_c, GDK_CONTROL_MASK,
1316 "copy-clipboard", 0);
1317 gtk_binding_entry_add_signal (binding_set, GDK_KEY_v, GDK_CONTROL_MASK,
1318 "paste-clipboard", 0);
1320 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK,
1321 "cut-clipboard", 0);
1322 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_CONTROL_MASK,
1323 "copy-clipboard", 0);
1324 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_SHIFT_MASK,
1325 "paste-clipboard", 0);
1328 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, 0,
1329 "toggle-overwrite", 0);
1330 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Insert, 0,
1331 "toggle-overwrite", 0);
1334 gtk_binding_entry_add_signal (binding_set, GDK_KEY_F7, 0,
1335 "toggle-cursor-visible", 0);
1337 /* Control-tab focus motion */
1338 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_CONTROL_MASK,
1340 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1341 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_CONTROL_MASK,
1343 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1345 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1347 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1348 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1350 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1352 g_type_class_add_private (gobject_class, sizeof (GtkTextViewPrivate));
1356 gtk_text_view_init (GtkTextView *text_view)
1358 GtkWidget *widget = GTK_WIDGET (text_view);
1359 GtkTargetList *target_list;
1360 GtkTextViewPrivate *priv;
1362 text_view->priv = GTK_TEXT_VIEW_GET_PRIVATE (text_view);
1363 priv = text_view->priv;
1365 gtk_widget_set_can_focus (widget, TRUE);
1367 /* Set up default style */
1368 priv->wrap_mode = GTK_WRAP_NONE;
1369 priv->pixels_above_lines = 0;
1370 priv->pixels_below_lines = 0;
1371 priv->pixels_inside_wrap = 0;
1372 priv->justify = GTK_JUSTIFY_LEFT;
1373 priv->left_margin = 0;
1374 priv->right_margin = 0;
1377 priv->editable = TRUE;
1379 priv->scroll_after_paste = TRUE;
1381 gtk_drag_dest_set (widget, 0, NULL, 0,
1382 GDK_ACTION_COPY | GDK_ACTION_MOVE);
1384 target_list = gtk_target_list_new (NULL, 0);
1385 gtk_drag_dest_set_target_list (widget, target_list);
1386 gtk_target_list_unref (target_list);
1388 priv->virtual_cursor_x = -1;
1389 priv->virtual_cursor_y = -1;
1391 /* This object is completely private. No external entity can gain a reference
1392 * to it; so we create it here and destroy it in finalize ().
1394 priv->im_context = gtk_im_multicontext_new ();
1396 g_signal_connect (priv->im_context, "commit",
1397 G_CALLBACK (gtk_text_view_commit_handler), text_view);
1398 g_signal_connect (priv->im_context, "preedit-changed",
1399 G_CALLBACK (gtk_text_view_preedit_changed_handler), text_view);
1400 g_signal_connect (priv->im_context, "retrieve-surrounding",
1401 G_CALLBACK (gtk_text_view_retrieve_surrounding_handler), text_view);
1402 g_signal_connect (priv->im_context, "delete-surrounding",
1403 G_CALLBACK (gtk_text_view_delete_surrounding_handler), text_view);
1405 priv->cursor_visible = TRUE;
1407 priv->accepts_tab = TRUE;
1409 priv->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT,
1412 priv->drag_start_x = -1;
1413 priv->drag_start_y = -1;
1415 priv->pending_place_cursor_button = 0;
1417 /* We handle all our own redrawing */
1418 gtk_widget_set_redraw_on_allocate (widget, FALSE);
1422 * gtk_text_view_new:
1424 * Creates a new #GtkTextView. If you don't call gtk_text_view_set_buffer()
1425 * before using the text view, an empty default buffer will be created
1426 * for you. Get the buffer with gtk_text_view_get_buffer(). If you want
1427 * to specify your own buffer, consider gtk_text_view_new_with_buffer().
1429 * Return value: a new #GtkTextView
1432 gtk_text_view_new (void)
1434 return g_object_new (GTK_TYPE_TEXT_VIEW, NULL);
1438 * gtk_text_view_new_with_buffer:
1439 * @buffer: a #GtkTextBuffer
1441 * Creates a new #GtkTextView widget displaying the buffer
1442 * @buffer. One buffer can be shared among many widgets.
1443 * @buffer may be %NULL to create a default buffer, in which case
1444 * this function is equivalent to gtk_text_view_new(). The
1445 * text view adds its own reference count to the buffer; it does not
1446 * take over an existing reference.
1448 * Return value: a new #GtkTextView.
1451 gtk_text_view_new_with_buffer (GtkTextBuffer *buffer)
1453 GtkTextView *text_view;
1455 text_view = (GtkTextView*)gtk_text_view_new ();
1457 gtk_text_view_set_buffer (text_view, buffer);
1459 return GTK_WIDGET (text_view);
1463 * gtk_text_view_set_buffer:
1464 * @text_view: a #GtkTextView
1465 * @buffer: (allow-none): a #GtkTextBuffer
1467 * Sets @buffer as the buffer being displayed by @text_view. The previous
1468 * buffer displayed by the text view is unreferenced, and a reference is
1469 * added to @buffer. If you owned a reference to @buffer before passing it
1470 * to this function, you must remove that reference yourself; #GtkTextView
1471 * will not "adopt" it.
1474 gtk_text_view_set_buffer (GtkTextView *text_view,
1475 GtkTextBuffer *buffer)
1477 GtkTextViewPrivate *priv;
1479 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1480 g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer));
1482 priv = text_view->priv;
1484 if (priv->buffer == buffer)
1487 if (priv->buffer != NULL)
1489 /* Destroy all anchored children */
1493 copy = g_slist_copy (priv->children);
1495 while (tmp_list != NULL)
1497 GtkTextViewChild *vc = tmp_list->data;
1501 gtk_widget_destroy (vc->widget);
1502 /* vc may now be invalid! */
1505 tmp_list = g_slist_next (tmp_list);
1508 g_slist_free (copy);
1510 g_signal_handlers_disconnect_by_func (priv->buffer,
1511 gtk_text_view_mark_set_handler,
1513 g_signal_handlers_disconnect_by_func (priv->buffer,
1514 gtk_text_view_target_list_notify,
1516 g_signal_handlers_disconnect_by_func (priv->buffer,
1517 gtk_text_view_paste_done_handler,
1520 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
1522 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1523 GDK_SELECTION_PRIMARY);
1524 gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard);
1528 gtk_text_layout_set_buffer (priv->layout, NULL);
1530 g_object_unref (priv->buffer);
1531 priv->dnd_mark = NULL;
1532 priv->first_para_mark = NULL;
1533 cancel_pending_scroll (text_view);
1536 priv->buffer = buffer;
1539 gtk_text_layout_set_buffer (priv->layout, buffer);
1545 g_object_ref (buffer);
1547 gtk_text_buffer_get_iter_at_offset (priv->buffer, &start, 0);
1549 priv->dnd_mark = gtk_text_buffer_create_mark (priv->buffer,
1553 priv->first_para_mark = gtk_text_buffer_create_mark (priv->buffer,
1557 priv->first_para_pixels = 0;
1560 g_signal_connect (priv->buffer, "mark-set",
1561 G_CALLBACK (gtk_text_view_mark_set_handler),
1563 g_signal_connect (priv->buffer, "notify::paste-target-list",
1564 G_CALLBACK (gtk_text_view_target_list_notify),
1566 g_signal_connect (priv->buffer, "paste-done",
1567 G_CALLBACK (gtk_text_view_paste_done_handler),
1570 gtk_text_view_target_list_notify (priv->buffer, NULL, text_view);
1572 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
1574 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1575 GDK_SELECTION_PRIMARY);
1576 gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard);
1580 g_object_notify (G_OBJECT (text_view), "buffer");
1582 if (gtk_widget_get_visible (GTK_WIDGET (text_view)))
1583 gtk_widget_queue_draw (GTK_WIDGET (text_view));
1585 DV(g_print ("Invalidating due to set_buffer\n"));
1586 gtk_text_view_invalidate (text_view);
1589 static GtkTextBuffer*
1590 get_buffer (GtkTextView *text_view)
1592 if (text_view->priv->buffer == NULL)
1595 b = gtk_text_buffer_new (NULL);
1596 gtk_text_view_set_buffer (text_view, b);
1600 return text_view->priv->buffer;
1604 * gtk_text_view_get_buffer:
1605 * @text_view: a #GtkTextView
1607 * Returns the #GtkTextBuffer being displayed by this text view.
1608 * The reference count on the buffer is not incremented; the caller
1609 * of this function won't own a new reference.
1611 * Return value: (transfer none): a #GtkTextBuffer
1614 gtk_text_view_get_buffer (GtkTextView *text_view)
1616 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
1618 return get_buffer (text_view);
1622 * gtk_text_view_get_cursor_locations:
1623 * @text_view: a #GtkTextView
1624 * @iter: (allow-none): a #GtkTextIter
1625 * @strong: (out) (allow-none): location to store the strong
1626 * cursor position (may be %NULL)
1627 * @weak: (out) (allow-none): location to store the weak
1628 * cursor position (may be %NULL)
1630 * Given an @iter within a text layout, determine the positions of the
1631 * strong and weak cursors if the insertion point is at that
1632 * iterator. The position of each cursor is stored as a zero-width
1633 * rectangle. The strong cursor location is the location where
1634 * characters of the directionality equal to the base direction of the
1635 * paragraph are inserted. The weak cursor location is the location
1636 * where characters of the directionality opposite to the base
1637 * direction of the paragraph are inserted.
1639 * If @iter is %NULL, the actual cursor position is used.
1641 * Note that if @iter happens to be the actual cursor position, and
1642 * there is currently an IM preedit sequence being entered, the
1643 * returned locations will be adjusted to account for the preedit
1644 * cursor's offset within the preedit sequence.
1646 * The rectangle position is in buffer coordinates; use
1647 * gtk_text_view_buffer_to_window_coords() to convert these
1648 * coordinates to coordinates for one of the windows in the text view.
1653 gtk_text_view_get_cursor_locations (GtkTextView *text_view,
1654 const GtkTextIter *iter,
1655 GdkRectangle *strong,
1660 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1661 g_return_if_fail (iter == NULL ||
1662 gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1664 gtk_text_view_ensure_layout (text_view);
1669 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
1670 gtk_text_buffer_get_insert (get_buffer (text_view)));
1672 gtk_text_layout_get_cursor_locations (text_view->priv->layout, &insert,
1677 * gtk_text_view_get_iter_at_location:
1678 * @text_view: a #GtkTextView
1679 * @iter: (out): a #GtkTextIter
1680 * @x: x position, in buffer coordinates
1681 * @y: y position, in buffer coordinates
1683 * Retrieves the iterator at buffer coordinates @x and @y. Buffer
1684 * coordinates are coordinates for the entire buffer, not just the
1685 * currently-displayed portion. If you have coordinates from an
1686 * event, you have to convert those to buffer coordinates with
1687 * gtk_text_view_window_to_buffer_coords().
1690 gtk_text_view_get_iter_at_location (GtkTextView *text_view,
1695 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1696 g_return_if_fail (iter != NULL);
1698 gtk_text_view_ensure_layout (text_view);
1700 gtk_text_layout_get_iter_at_pixel (text_view->priv->layout,
1705 * gtk_text_view_get_iter_at_position:
1706 * @text_view: a #GtkTextView
1707 * @iter: (out): a #GtkTextIter
1708 * @trailing: (out) (allow-none): if non-%NULL, location to store an integer indicating where
1709 * in the grapheme the user clicked. It will either be
1710 * zero, or the number of characters in the grapheme.
1711 * 0 represents the trailing edge of the grapheme.
1712 * @x: x position, in buffer coordinates
1713 * @y: y position, in buffer coordinates
1715 * Retrieves the iterator pointing to the character at buffer
1716 * coordinates @x and @y. Buffer coordinates are coordinates for
1717 * the entire buffer, not just the currently-displayed portion.
1718 * If you have coordinates from an event, you have to convert
1719 * those to buffer coordinates with
1720 * gtk_text_view_window_to_buffer_coords().
1722 * Note that this is different from gtk_text_view_get_iter_at_location(),
1723 * which returns cursor locations, i.e. positions <emphasis>between</emphasis>
1729 gtk_text_view_get_iter_at_position (GtkTextView *text_view,
1735 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1736 g_return_if_fail (iter != NULL);
1738 gtk_text_view_ensure_layout (text_view);
1740 gtk_text_layout_get_iter_at_position (text_view->priv->layout,
1741 iter, trailing, x, y);
1745 * gtk_text_view_get_iter_location:
1746 * @text_view: a #GtkTextView
1747 * @iter: a #GtkTextIter
1748 * @location: (out): bounds of the character at @iter
1750 * Gets a rectangle which roughly contains the character at @iter.
1751 * The rectangle position is in buffer coordinates; use
1752 * gtk_text_view_buffer_to_window_coords() to convert these
1753 * coordinates to coordinates for one of the windows in the text view.
1756 gtk_text_view_get_iter_location (GtkTextView *text_view,
1757 const GtkTextIter *iter,
1758 GdkRectangle *location)
1760 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1761 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1763 gtk_text_view_ensure_layout (text_view);
1765 gtk_text_layout_get_iter_location (text_view->priv->layout, iter, location);
1769 * gtk_text_view_get_line_yrange:
1770 * @text_view: a #GtkTextView
1771 * @iter: a #GtkTextIter
1772 * @y: (out): return location for a y coordinate
1773 * @height: (out): return location for a height
1775 * Gets the y coordinate of the top of the line containing @iter,
1776 * and the height of the line. The coordinate is a buffer coordinate;
1777 * convert to window coordinates with gtk_text_view_buffer_to_window_coords().
1780 gtk_text_view_get_line_yrange (GtkTextView *text_view,
1781 const GtkTextIter *iter,
1785 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1786 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1788 gtk_text_view_ensure_layout (text_view);
1790 gtk_text_layout_get_line_yrange (text_view->priv->layout,
1797 * gtk_text_view_get_line_at_y:
1798 * @text_view: a #GtkTextView
1799 * @target_iter: (out): a #GtkTextIter
1800 * @y: a y coordinate
1801 * @line_top: (out): return location for top coordinate of the line
1803 * Gets the #GtkTextIter at the start of the line containing
1804 * the coordinate @y. @y is in buffer coordinates, convert from
1805 * window coordinates with gtk_text_view_window_to_buffer_coords().
1806 * If non-%NULL, @line_top will be filled with the coordinate of the top
1810 gtk_text_view_get_line_at_y (GtkTextView *text_view,
1811 GtkTextIter *target_iter,
1815 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1817 gtk_text_view_ensure_layout (text_view);
1819 gtk_text_layout_get_line_at_y (text_view->priv->layout,
1826 * gtk_text_view_scroll_to_iter:
1827 * @text_view: a #GtkTextView
1828 * @iter: a #GtkTextIter
1829 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1830 * @use_align: whether to use alignment arguments (if %FALSE,
1831 * just get the mark onscreen)
1832 * @xalign: horizontal alignment of mark within visible area
1833 * @yalign: vertical alignment of mark within visible area
1835 * Scrolls @text_view so that @iter is on the screen in the position
1836 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1837 * left or top, 1.0 indicates right or bottom, 0.5 means center.
1838 * If @use_align is %FALSE, the text scrolls the minimal distance to
1839 * get the mark onscreen, possibly not scrolling at all. The effective
1840 * screen for purposes of this function is reduced by a margin of size
1843 * Note that this function uses the currently-computed height of the
1844 * lines in the text buffer. Line heights are computed in an idle
1845 * handler; so this function may not have the desired effect if it's
1846 * called before the height computations. To avoid oddness, consider
1847 * using gtk_text_view_scroll_to_mark() which saves a point to be
1848 * scrolled to after line validation.
1850 * Return value: %TRUE if scrolling occurred
1853 gtk_text_view_scroll_to_iter (GtkTextView *text_view,
1855 gdouble within_margin,
1861 GdkRectangle screen;
1866 gboolean retval = FALSE;
1868 gint screen_xoffset, screen_yoffset;
1869 gint current_x_scroll, current_y_scroll;
1871 /* FIXME why don't we do the validate-at-scroll-destination thing
1872 * from flush_scroll in this function? I think it wasn't done before
1873 * because changed_handler was screwed up, but I could be wrong.
1876 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1877 g_return_val_if_fail (iter != NULL, FALSE);
1878 g_return_val_if_fail (within_margin >= 0.0 && within_margin < 0.5, FALSE);
1879 g_return_val_if_fail (xalign >= 0.0 && xalign <= 1.0, FALSE);
1880 g_return_val_if_fail (yalign >= 0.0 && yalign <= 1.0, FALSE);
1882 widget = GTK_WIDGET (text_view);
1884 DV(g_print(G_STRLOC"\n"));
1886 gtk_text_layout_get_iter_location (text_view->priv->layout,
1890 DV (g_print (" target rect %d,%d %d x %d\n", rect.x, rect.y, rect.width, rect.height));
1892 current_x_scroll = text_view->priv->xoffset;
1893 current_y_scroll = text_view->priv->yoffset;
1895 screen.x = current_x_scroll;
1896 screen.y = current_y_scroll;
1897 screen.width = SCREEN_WIDTH (widget);
1898 screen.height = SCREEN_HEIGHT (widget);
1900 screen_xoffset = screen.width * within_margin;
1901 screen_yoffset = screen.height * within_margin;
1903 screen.x += screen_xoffset;
1904 screen.y += screen_yoffset;
1905 screen.width -= screen_xoffset * 2;
1906 screen.height -= screen_yoffset * 2;
1908 /* paranoia check */
1909 if (screen.width < 1)
1911 if (screen.height < 1)
1914 /* The -1 here ensures that we leave enough space to draw the cursor
1915 * when this function is used for horizontal scrolling.
1917 screen_right = screen.x + screen.width - 1;
1918 screen_bottom = screen.y + screen.height;
1920 /* The alignment affects the point in the target character that we
1921 * choose to align. If we're doing right/bottom alignment, we align
1922 * the right/bottom edge of the character the mark is at; if we're
1923 * doing left/top we align the left/top edge of the character; if
1924 * we're doing center alignment we align the center of the
1928 /* Vertical scroll */
1931 scroll_dest = current_y_scroll;
1935 scroll_dest = rect.y + (rect.height * yalign) - (screen.height * yalign);
1937 /* if scroll_dest < screen.y, we move a negative increment (up),
1938 * else a positive increment (down)
1940 scroll_inc = scroll_dest - screen.y + screen_yoffset;
1944 /* move minimum to get onscreen */
1945 if (rect.y < screen.y)
1947 scroll_dest = rect.y;
1948 scroll_inc = scroll_dest - screen.y - screen_yoffset;
1950 else if ((rect.y + rect.height) > screen_bottom)
1952 scroll_dest = rect.y + rect.height;
1953 scroll_inc = scroll_dest - screen_bottom + screen_yoffset;
1957 if (scroll_inc != 0)
1959 gtk_adjustment_set_value (text_view->priv->vadjustment,
1960 current_y_scroll + scroll_inc);
1962 DV (g_print (" vert increment %d\n", scroll_inc));
1965 /* Horizontal scroll */
1968 scroll_dest = current_x_scroll;
1972 scroll_dest = rect.x + (rect.width * xalign) - (screen.width * xalign);
1974 /* if scroll_dest < screen.y, we move a negative increment (left),
1975 * else a positive increment (right)
1977 scroll_inc = scroll_dest - screen.x + screen_xoffset;
1981 /* move minimum to get onscreen */
1982 if (rect.x < screen.x)
1984 scroll_dest = rect.x;
1985 scroll_inc = scroll_dest - screen.x - screen_xoffset;
1987 else if ((rect.x + rect.width) > screen_right)
1989 scroll_dest = rect.x + rect.width;
1990 scroll_inc = scroll_dest - screen_right + screen_xoffset;
1994 if (scroll_inc != 0)
1996 gtk_adjustment_set_value (text_view->priv->hadjustment,
1997 current_x_scroll + scroll_inc);
1999 DV (g_print (" horiz increment %d\n", scroll_inc));
2002 retval = (current_y_scroll != gtk_adjustment_get_value (text_view->priv->vadjustment))
2003 || (current_x_scroll != gtk_adjustment_get_value (text_view->priv->hadjustment));
2007 DV(g_print (">Actually scrolled ("G_STRLOC")\n"));
2011 DV(g_print (">Didn't end up scrolling ("G_STRLOC")\n"));
2018 free_pending_scroll (GtkTextPendingScroll *scroll)
2020 if (!gtk_text_mark_get_deleted (scroll->mark))
2021 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark),
2023 g_object_unref (scroll->mark);
2028 cancel_pending_scroll (GtkTextView *text_view)
2030 if (text_view->priv->pending_scroll)
2032 free_pending_scroll (text_view->priv->pending_scroll);
2033 text_view->priv->pending_scroll = NULL;
2038 gtk_text_view_queue_scroll (GtkTextView *text_view,
2040 gdouble within_margin,
2046 GtkTextPendingScroll *scroll;
2048 DV(g_print(G_STRLOC"\n"));
2050 scroll = g_new (GtkTextPendingScroll, 1);
2052 scroll->within_margin = within_margin;
2053 scroll->use_align = use_align;
2054 scroll->xalign = xalign;
2055 scroll->yalign = yalign;
2057 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
2059 scroll->mark = gtk_text_buffer_create_mark (get_buffer (text_view),
2062 gtk_text_mark_get_left_gravity (mark));
2064 g_object_ref (scroll->mark);
2066 cancel_pending_scroll (text_view);
2068 text_view->priv->pending_scroll = scroll;
2072 gtk_text_view_flush_scroll (GtkTextView *text_view)
2074 GtkAllocation allocation;
2076 GtkTextPendingScroll *scroll;
2080 widget = GTK_WIDGET (text_view);
2082 DV(g_print(G_STRLOC"\n"));
2084 if (text_view->priv->pending_scroll == NULL)
2086 DV (g_print ("in flush scroll, no pending scroll\n"));
2090 scroll = text_view->priv->pending_scroll;
2092 /* avoid recursion */
2093 text_view->priv->pending_scroll = NULL;
2095 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, scroll->mark);
2097 /* Validate area around the scroll destination, so the adjustment
2098 * can meaningfully point into that area. We must validate
2099 * enough area to be sure that after we scroll, everything onscreen
2100 * is valid; otherwise, validation will maintain the first para
2101 * in one place, but may push the target iter off the bottom of
2104 DV(g_print (">Validating scroll destination ("G_STRLOC")\n"));
2105 gtk_widget_get_allocation (widget, &allocation);
2106 gtk_text_layout_validate_yrange (text_view->priv->layout, &iter,
2107 -(allocation.height * 2),
2108 allocation.height * 2);
2110 DV(g_print (">Done validating scroll destination ("G_STRLOC")\n"));
2112 /* Ensure we have updated width/height */
2113 gtk_text_view_update_adjustments (text_view);
2115 retval = gtk_text_view_scroll_to_iter (text_view,
2117 scroll->within_margin,
2122 free_pending_scroll (scroll);
2128 gtk_text_view_update_adjustments (GtkTextView *text_view)
2130 GtkTextViewPrivate *priv;
2131 gint width = 0, height = 0;
2133 DV(g_print(">Updating adjustments ("G_STRLOC")\n"));
2135 priv = text_view->priv;
2138 gtk_text_layout_get_size (priv->layout, &width, &height);
2140 /* Make room for the cursor after the last character in the widest line */
2141 width += SPACE_FOR_CURSOR;
2143 if (priv->width != width || priv->height != height)
2145 if (priv->width != width)
2146 priv->width_changed = TRUE;
2148 priv->width = width;
2149 priv->height = height;
2151 gtk_text_view_set_hadjustment_values (text_view);
2152 gtk_text_view_set_vadjustment_values (text_view);
2157 gtk_text_view_update_layout_width (GtkTextView *text_view)
2159 DV(g_print(">Updating layout width ("G_STRLOC")\n"));
2161 gtk_text_view_ensure_layout (text_view);
2163 gtk_text_layout_set_screen_width (text_view->priv->layout,
2164 MAX (1, SCREEN_WIDTH (text_view) - SPACE_FOR_CURSOR));
2168 gtk_text_view_update_im_spot_location (GtkTextView *text_view)
2172 if (text_view->priv->layout == NULL)
2175 gtk_text_view_get_cursor_locations (text_view, NULL, &area, NULL);
2177 area.x -= text_view->priv->xoffset;
2178 area.y -= text_view->priv->yoffset;
2180 /* Width returned by Pango indicates direction of cursor,
2181 * by it's sign more than the size of cursor.
2185 gtk_im_context_set_cursor_location (text_view->priv->im_context, &area);
2189 do_update_im_spot_location (gpointer text_view)
2191 GtkTextViewPrivate *priv;
2193 priv = GTK_TEXT_VIEW (text_view)->priv;
2194 priv->im_spot_idle = 0;
2196 gtk_text_view_update_im_spot_location (text_view);
2201 queue_update_im_spot_location (GtkTextView *text_view)
2203 GtkTextViewPrivate *priv;
2205 priv = text_view->priv;
2207 /* Use priority a little higher than GTK_TEXT_VIEW_PRIORITY_VALIDATE,
2208 * so we don't wait until the entire buffer has been validated. */
2209 if (!priv->im_spot_idle)
2210 priv->im_spot_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE - 1,
2211 do_update_im_spot_location,
2217 flush_update_im_spot_location (GtkTextView *text_view)
2219 GtkTextViewPrivate *priv;
2221 priv = text_view->priv;
2223 if (priv->im_spot_idle)
2225 g_source_remove (priv->im_spot_idle);
2226 priv->im_spot_idle = 0;
2227 gtk_text_view_update_im_spot_location (text_view);
2232 * gtk_text_view_scroll_to_mark:
2233 * @text_view: a #GtkTextView
2234 * @mark: a #GtkTextMark
2235 * @within_margin: margin as a [0.0,0.5) fraction of screen size
2236 * @use_align: whether to use alignment arguments (if %FALSE, just
2237 * get the mark onscreen)
2238 * @xalign: horizontal alignment of mark within visible area
2239 * @yalign: vertical alignment of mark within visible area
2241 * Scrolls @text_view so that @mark is on the screen in the position
2242 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
2243 * left or top, 1.0 indicates right or bottom, 0.5 means center.
2244 * If @use_align is %FALSE, the text scrolls the minimal distance to
2245 * get the mark onscreen, possibly not scrolling at all. The effective
2246 * screen for purposes of this function is reduced by a margin of size
2250 gtk_text_view_scroll_to_mark (GtkTextView *text_view,
2252 gdouble within_margin,
2257 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2258 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2259 g_return_if_fail (within_margin >= 0.0 && within_margin < 0.5);
2260 g_return_if_fail (xalign >= 0.0 && xalign <= 1.0);
2261 g_return_if_fail (yalign >= 0.0 && yalign <= 1.0);
2263 /* We need to verify that the buffer contains the mark, otherwise this
2264 * can lead to data structure corruption later on.
2266 g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark));
2268 gtk_text_view_queue_scroll (text_view, mark,
2274 /* If no validation is pending, we need to go ahead and force an
2277 if (text_view->priv->layout &&
2278 gtk_text_layout_is_valid (text_view->priv->layout))
2279 gtk_text_view_flush_scroll (text_view);
2283 * gtk_text_view_scroll_mark_onscreen:
2284 * @text_view: a #GtkTextView
2285 * @mark: a mark in the buffer for @text_view
2287 * Scrolls @text_view the minimum distance such that @mark is contained
2288 * within the visible area of the widget.
2291 gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
2294 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2295 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2297 /* We need to verify that the buffer contains the mark, otherwise this
2298 * can lead to data structure corruption later on.
2300 g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark));
2302 gtk_text_view_scroll_to_mark (text_view, mark, 0.0, FALSE, 0.0, 0.0);
2306 clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter)
2308 GdkRectangle visible_rect;
2309 gtk_text_view_get_visible_rect (text_view, &visible_rect);
2311 return gtk_text_layout_clamp_iter_to_vrange (text_view->priv->layout, iter,
2313 visible_rect.y + visible_rect.height);
2317 * gtk_text_view_move_mark_onscreen:
2318 * @text_view: a #GtkTextView
2319 * @mark: a #GtkTextMark
2321 * Moves a mark within the buffer so that it's
2322 * located within the currently-visible text area.
2324 * Return value: %TRUE if the mark moved (wasn't already onscreen)
2327 gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
2332 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2333 g_return_val_if_fail (mark != NULL, FALSE);
2335 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
2337 if (clamp_iter_onscreen (text_view, &iter))
2339 gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter);
2347 * gtk_text_view_get_visible_rect:
2348 * @text_view: a #GtkTextView
2349 * @visible_rect: (out): rectangle to fill
2351 * Fills @visible_rect with the currently-visible
2352 * region of the buffer, in buffer coordinates. Convert to window coordinates
2353 * with gtk_text_view_buffer_to_window_coords().
2356 gtk_text_view_get_visible_rect (GtkTextView *text_view,
2357 GdkRectangle *visible_rect)
2361 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2363 widget = GTK_WIDGET (text_view);
2367 visible_rect->x = text_view->priv->xoffset;
2368 visible_rect->y = text_view->priv->yoffset;
2369 visible_rect->width = SCREEN_WIDTH (widget);
2370 visible_rect->height = SCREEN_HEIGHT (widget);
2372 DV(g_print(" visible rect: %d,%d %d x %d\n",
2375 visible_rect->width,
2376 visible_rect->height));
2381 * gtk_text_view_set_wrap_mode:
2382 * @text_view: a #GtkTextView
2383 * @wrap_mode: a #GtkWrapMode
2385 * Sets the line wrapping for the view.
2388 gtk_text_view_set_wrap_mode (GtkTextView *text_view,
2389 GtkWrapMode wrap_mode)
2391 GtkTextViewPrivate *priv;
2393 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2395 priv = text_view->priv;
2397 if (priv->wrap_mode != wrap_mode)
2399 priv->wrap_mode = wrap_mode;
2401 if (priv->layout && priv->layout->default_style)
2403 priv->layout->default_style->wrap_mode = wrap_mode;
2404 gtk_text_layout_default_style_changed (priv->layout);
2408 g_object_notify (G_OBJECT (text_view), "wrap-mode");
2412 * gtk_text_view_get_wrap_mode:
2413 * @text_view: a #GtkTextView
2415 * Gets the line wrapping for the view.
2417 * Return value: the line wrap setting
2420 gtk_text_view_get_wrap_mode (GtkTextView *text_view)
2422 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAP_NONE);
2424 return text_view->priv->wrap_mode;
2428 * gtk_text_view_set_editable:
2429 * @text_view: a #GtkTextView
2430 * @setting: whether it's editable
2432 * Sets the default editability of the #GtkTextView. You can override
2433 * this default setting with tags in the buffer, using the "editable"
2434 * attribute of tags.
2437 gtk_text_view_set_editable (GtkTextView *text_view,
2440 GtkTextViewPrivate *priv;
2442 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2444 priv = text_view->priv;
2445 setting = setting != FALSE;
2447 if (priv->editable != setting)
2451 gtk_text_view_reset_im_context(text_view);
2452 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
2453 gtk_im_context_focus_out (priv->im_context);
2456 priv->editable = setting;
2458 if (setting && gtk_widget_has_focus (GTK_WIDGET (text_view)))
2459 gtk_im_context_focus_in (priv->im_context);
2461 if (priv->layout && priv->layout->default_style)
2463 gtk_text_layout_set_overwrite_mode (priv->layout,
2464 priv->overwrite_mode && priv->editable);
2465 priv->layout->default_style->editable = priv->editable;
2466 gtk_text_layout_default_style_changed (priv->layout);
2469 g_object_notify (G_OBJECT (text_view), "editable");
2474 * gtk_text_view_get_editable:
2475 * @text_view: a #GtkTextView
2477 * Returns the default editability of the #GtkTextView. Tags in the
2478 * buffer may override this setting for some ranges of text.
2480 * Return value: whether text is editable by default
2483 gtk_text_view_get_editable (GtkTextView *text_view)
2485 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2487 return text_view->priv->editable;
2491 * gtk_text_view_set_pixels_above_lines:
2492 * @text_view: a #GtkTextView
2493 * @pixels_above_lines: pixels above paragraphs
2495 * Sets the default number of blank pixels above paragraphs in @text_view.
2496 * Tags in the buffer for @text_view may override the defaults.
2499 gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
2500 gint pixels_above_lines)
2502 GtkTextViewPrivate *priv;
2504 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2506 priv = text_view->priv;
2508 if (priv->pixels_above_lines != pixels_above_lines)
2510 priv->pixels_above_lines = pixels_above_lines;
2512 if (priv->layout && priv->layout->default_style)
2514 priv->layout->default_style->pixels_above_lines = pixels_above_lines;
2515 gtk_text_layout_default_style_changed (priv->layout);
2518 g_object_notify (G_OBJECT (text_view), "pixels-above-lines");
2523 * gtk_text_view_get_pixels_above_lines:
2524 * @text_view: a #GtkTextView
2526 * Gets the default number of pixels to put above paragraphs.
2528 * Return value: default number of pixels above paragraphs
2531 gtk_text_view_get_pixels_above_lines (GtkTextView *text_view)
2533 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2535 return text_view->priv->pixels_above_lines;
2539 * gtk_text_view_set_pixels_below_lines:
2540 * @text_view: a #GtkTextView
2541 * @pixels_below_lines: pixels below paragraphs
2543 * Sets the default number of pixels of blank space
2544 * to put below paragraphs in @text_view. May be overridden
2545 * by tags applied to @text_view's buffer.
2548 gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
2549 gint pixels_below_lines)
2551 GtkTextViewPrivate *priv;
2553 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2555 priv = text_view->priv;
2557 if (priv->pixels_below_lines != pixels_below_lines)
2559 priv->pixels_below_lines = pixels_below_lines;
2561 if (priv->layout && priv->layout->default_style)
2563 priv->layout->default_style->pixels_below_lines = pixels_below_lines;
2564 gtk_text_layout_default_style_changed (priv->layout);
2567 g_object_notify (G_OBJECT (text_view), "pixels-below-lines");
2572 * gtk_text_view_get_pixels_below_lines:
2573 * @text_view: a #GtkTextView
2575 * Gets the value set by gtk_text_view_set_pixels_below_lines().
2577 * Return value: default number of blank pixels below paragraphs
2580 gtk_text_view_get_pixels_below_lines (GtkTextView *text_view)
2582 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2584 return text_view->priv->pixels_below_lines;
2588 * gtk_text_view_set_pixels_inside_wrap:
2589 * @text_view: a #GtkTextView
2590 * @pixels_inside_wrap: default number of pixels between wrapped lines
2592 * Sets the default number of pixels of blank space to leave between
2593 * display/wrapped lines within a paragraph. May be overridden by
2594 * tags in @text_view's buffer.
2597 gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
2598 gint pixels_inside_wrap)
2600 GtkTextViewPrivate *priv;
2602 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2604 priv = text_view->priv;
2606 if (priv->pixels_inside_wrap != pixels_inside_wrap)
2608 priv->pixels_inside_wrap = pixels_inside_wrap;
2610 if (priv->layout && priv->layout->default_style)
2612 priv->layout->default_style->pixels_inside_wrap = pixels_inside_wrap;
2613 gtk_text_layout_default_style_changed (priv->layout);
2616 g_object_notify (G_OBJECT (text_view), "pixels-inside-wrap");
2621 * gtk_text_view_get_pixels_inside_wrap:
2622 * @text_view: a #GtkTextView
2624 * Gets the value set by gtk_text_view_set_pixels_inside_wrap().
2626 * Return value: default number of pixels of blank space between wrapped lines
2629 gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view)
2631 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2633 return text_view->priv->pixels_inside_wrap;
2637 * gtk_text_view_set_justification:
2638 * @text_view: a #GtkTextView
2639 * @justification: justification
2641 * Sets the default justification of text in @text_view.
2642 * Tags in the view's buffer may override the default.
2646 gtk_text_view_set_justification (GtkTextView *text_view,
2647 GtkJustification justification)
2649 GtkTextViewPrivate *priv;
2651 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2653 priv = text_view->priv;
2655 if (priv->justify != justification)
2657 priv->justify = justification;
2659 if (priv->layout && priv->layout->default_style)
2661 priv->layout->default_style->justification = justification;
2662 gtk_text_layout_default_style_changed (priv->layout);
2665 g_object_notify (G_OBJECT (text_view), "justification");
2670 * gtk_text_view_get_justification:
2671 * @text_view: a #GtkTextView
2673 * Gets the default justification of paragraphs in @text_view.
2674 * Tags in the buffer may override the default.
2676 * Return value: default justification
2679 gtk_text_view_get_justification (GtkTextView *text_view)
2681 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_JUSTIFY_LEFT);
2683 return text_view->priv->justify;
2687 * gtk_text_view_set_left_margin:
2688 * @text_view: a #GtkTextView
2689 * @left_margin: left margin in pixels
2691 * Sets the default left margin for text in @text_view.
2692 * Tags in the buffer may override the default.
2695 gtk_text_view_set_left_margin (GtkTextView *text_view,
2698 GtkTextViewPrivate *priv;
2700 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2702 priv = text_view->priv;
2704 if (priv->left_margin != left_margin)
2706 priv->left_margin = left_margin;
2708 if (priv->layout && priv->layout->default_style)
2710 priv->layout->default_style->left_margin = left_margin;
2711 gtk_text_layout_default_style_changed (priv->layout);
2714 g_object_notify (G_OBJECT (text_view), "left-margin");
2719 * gtk_text_view_get_left_margin:
2720 * @text_view: a #GtkTextView
2722 * Gets the default left margin size of paragraphs in the @text_view.
2723 * Tags in the buffer may override the default.
2725 * Return value: left margin in pixels
2728 gtk_text_view_get_left_margin (GtkTextView *text_view)
2730 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2732 return text_view->priv->left_margin;
2736 * gtk_text_view_set_right_margin:
2737 * @text_view: a #GtkTextView
2738 * @right_margin: right margin in pixels
2740 * Sets the default right margin for text in the text view.
2741 * Tags in the buffer may override the default.
2744 gtk_text_view_set_right_margin (GtkTextView *text_view,
2747 GtkTextViewPrivate *priv = text_view->priv;
2749 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2751 if (priv->right_margin != right_margin)
2753 priv->right_margin = right_margin;
2755 if (priv->layout && priv->layout->default_style)
2757 priv->layout->default_style->right_margin = right_margin;
2758 gtk_text_layout_default_style_changed (priv->layout);
2761 g_object_notify (G_OBJECT (text_view), "right-margin");
2766 * gtk_text_view_get_right_margin:
2767 * @text_view: a #GtkTextView
2769 * Gets the default right margin for text in @text_view. Tags
2770 * in the buffer may override the default.
2772 * Return value: right margin in pixels
2775 gtk_text_view_get_right_margin (GtkTextView *text_view)
2777 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2779 return text_view->priv->right_margin;
2783 * gtk_text_view_set_indent:
2784 * @text_view: a #GtkTextView
2785 * @indent: indentation in pixels
2787 * Sets the default indentation for paragraphs in @text_view.
2788 * Tags in the buffer may override the default.
2791 gtk_text_view_set_indent (GtkTextView *text_view,
2794 GtkTextViewPrivate *priv;
2796 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2798 priv = text_view->priv;
2800 if (priv->indent != indent)
2802 priv->indent = indent;
2804 if (priv->layout && priv->layout->default_style)
2806 priv->layout->default_style->indent = indent;
2807 gtk_text_layout_default_style_changed (priv->layout);
2810 g_object_notify (G_OBJECT (text_view), "indent");
2815 * gtk_text_view_get_indent:
2816 * @text_view: a #GtkTextView
2818 * Gets the default indentation of paragraphs in @text_view.
2819 * Tags in the view's buffer may override the default.
2820 * The indentation may be negative.
2822 * Return value: number of pixels of indentation
2825 gtk_text_view_get_indent (GtkTextView *text_view)
2827 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2829 return text_view->priv->indent;
2833 * gtk_text_view_set_tabs:
2834 * @text_view: a #GtkTextView
2835 * @tabs: tabs as a #PangoTabArray
2837 * Sets the default tab stops for paragraphs in @text_view.
2838 * Tags in the buffer may override the default.
2841 gtk_text_view_set_tabs (GtkTextView *text_view,
2842 PangoTabArray *tabs)
2844 GtkTextViewPrivate *priv;
2846 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2848 priv = text_view->priv;
2851 pango_tab_array_free (priv->tabs);
2853 priv->tabs = tabs ? pango_tab_array_copy (tabs) : NULL;
2855 if (priv->layout && priv->layout->default_style)
2857 /* some unkosher futzing in internal struct details... */
2858 if (priv->layout->default_style->tabs)
2859 pango_tab_array_free (priv->layout->default_style->tabs);
2861 priv->layout->default_style->tabs =
2862 priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL;
2864 gtk_text_layout_default_style_changed (priv->layout);
2867 g_object_notify (G_OBJECT (text_view), "tabs");
2871 * gtk_text_view_get_tabs:
2872 * @text_view: a #GtkTextView
2874 * Gets the default tabs for @text_view. Tags in the buffer may
2875 * override the defaults. The returned array will be %NULL if
2876 * "standard" (8-space) tabs are used. Free the return value
2877 * with pango_tab_array_free().
2879 * Return value: copy of default tab array, or %NULL if "standard"
2880 * tabs are used; must be freed with pango_tab_array_free().
2883 gtk_text_view_get_tabs (GtkTextView *text_view)
2885 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
2887 return text_view->priv->tabs ? pango_tab_array_copy (text_view->priv->tabs) : NULL;
2891 gtk_text_view_toggle_cursor_visible (GtkTextView *text_view)
2893 gtk_text_view_set_cursor_visible (text_view, !text_view->priv->cursor_visible);
2897 * gtk_text_view_set_cursor_visible:
2898 * @text_view: a #GtkTextView
2899 * @setting: whether to show the insertion cursor
2901 * Toggles whether the insertion point is displayed. A buffer with no editable
2902 * text probably shouldn't have a visible cursor, so you may want to turn
2906 gtk_text_view_set_cursor_visible (GtkTextView *text_view,
2909 GtkTextViewPrivate *priv;
2911 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2913 priv = text_view->priv;
2914 setting = (setting != FALSE);
2916 if (priv->cursor_visible != setting)
2918 priv->cursor_visible = setting;
2920 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
2924 gtk_text_layout_set_cursor_visible (priv->layout, setting);
2925 gtk_text_view_check_cursor_blink (text_view);
2929 g_object_notify (G_OBJECT (text_view), "cursor-visible");
2934 * gtk_text_view_get_cursor_visible:
2935 * @text_view: a #GtkTextView
2937 * Find out whether the cursor is being displayed.
2939 * Return value: whether the insertion mark is visible
2942 gtk_text_view_get_cursor_visible (GtkTextView *text_view)
2944 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2946 return text_view->priv->cursor_visible;
2951 * gtk_text_view_place_cursor_onscreen:
2952 * @text_view: a #GtkTextView
2954 * Moves the cursor to the currently visible region of the
2955 * buffer, it it isn't there already.
2957 * Return value: %TRUE if the cursor had to be moved.
2960 gtk_text_view_place_cursor_onscreen (GtkTextView *text_view)
2964 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2966 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
2967 gtk_text_buffer_get_insert (get_buffer (text_view)));
2969 if (clamp_iter_onscreen (text_view, &insert))
2971 gtk_text_buffer_place_cursor (get_buffer (text_view), &insert);
2979 gtk_text_view_remove_validate_idles (GtkTextView *text_view)
2981 GtkTextViewPrivate *priv = text_view->priv;
2983 if (priv->first_validate_idle != 0)
2985 DV (g_print ("Removing first validate idle: %s\n", G_STRLOC));
2986 g_source_remove (priv->first_validate_idle);
2987 priv->first_validate_idle = 0;
2990 if (priv->incremental_validate_idle != 0)
2992 g_source_remove (priv->incremental_validate_idle);
2993 priv->incremental_validate_idle = 0;
2998 gtk_text_view_destroy (GtkWidget *widget)
3000 GtkTextView *text_view;
3001 GtkTextViewPrivate *priv;
3003 text_view = GTK_TEXT_VIEW (widget);
3004 priv = text_view->priv;
3006 gtk_text_view_remove_validate_idles (text_view);
3007 gtk_text_view_set_buffer (text_view, NULL);
3008 gtk_text_view_destroy_layout (text_view);
3010 if (text_view->priv->scroll_timeout)
3012 g_source_remove (text_view->priv->scroll_timeout);
3013 text_view->priv->scroll_timeout = 0;
3016 if (priv->im_spot_idle)
3018 g_source_remove (priv->im_spot_idle);
3019 priv->im_spot_idle = 0;
3022 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->destroy (widget);
3026 gtk_text_view_finalize (GObject *object)
3028 GtkTextView *text_view;
3029 GtkTextViewPrivate *priv;
3031 text_view = GTK_TEXT_VIEW (object);
3032 priv = text_view->priv;
3034 gtk_text_view_destroy_layout (text_view);
3035 gtk_text_view_set_buffer (text_view, NULL);
3037 /* at this point, no "notify::buffer" handler should recreate the buffer. */
3038 g_assert (priv->buffer == NULL);
3040 cancel_pending_scroll (text_view);
3043 pango_tab_array_free (priv->tabs);
3045 if (priv->hadjustment)
3046 g_object_unref (priv->hadjustment);
3047 if (priv->vadjustment)
3048 g_object_unref (priv->vadjustment);
3050 text_window_free (priv->text_window);
3052 if (priv->left_window)
3053 text_window_free (priv->left_window);
3055 if (priv->top_window)
3056 text_window_free (priv->top_window);
3058 if (priv->right_window)
3059 text_window_free (priv->right_window);
3061 if (priv->bottom_window)
3062 text_window_free (priv->bottom_window);
3064 g_object_unref (priv->im_context);
3066 g_free (priv->im_module);
3068 G_OBJECT_CLASS (gtk_text_view_parent_class)->finalize (object);
3072 gtk_text_view_set_property (GObject *object,
3074 const GValue *value,
3077 GtkTextView *text_view;
3078 GtkTextViewPrivate *priv;
3080 text_view = GTK_TEXT_VIEW (object);
3081 priv = text_view->priv;
3085 case PROP_PIXELS_ABOVE_LINES:
3086 gtk_text_view_set_pixels_above_lines (text_view, g_value_get_int (value));
3089 case PROP_PIXELS_BELOW_LINES:
3090 gtk_text_view_set_pixels_below_lines (text_view, g_value_get_int (value));
3093 case PROP_PIXELS_INSIDE_WRAP:
3094 gtk_text_view_set_pixels_inside_wrap (text_view, g_value_get_int (value));
3098 gtk_text_view_set_editable (text_view, g_value_get_boolean (value));
3101 case PROP_WRAP_MODE:
3102 gtk_text_view_set_wrap_mode (text_view, g_value_get_enum (value));
3105 case PROP_JUSTIFICATION:
3106 gtk_text_view_set_justification (text_view, g_value_get_enum (value));
3109 case PROP_LEFT_MARGIN:
3110 gtk_text_view_set_left_margin (text_view, g_value_get_int (value));
3113 case PROP_RIGHT_MARGIN:
3114 gtk_text_view_set_right_margin (text_view, g_value_get_int (value));
3118 gtk_text_view_set_indent (text_view, g_value_get_int (value));
3122 gtk_text_view_set_tabs (text_view, g_value_get_boxed (value));
3125 case PROP_CURSOR_VISIBLE:
3126 gtk_text_view_set_cursor_visible (text_view, g_value_get_boolean (value));
3129 case PROP_OVERWRITE:
3130 gtk_text_view_set_overwrite (text_view, g_value_get_boolean (value));
3134 gtk_text_view_set_buffer (text_view, GTK_TEXT_BUFFER (g_value_get_object (value)));
3137 case PROP_ACCEPTS_TAB:
3138 gtk_text_view_set_accepts_tab (text_view, g_value_get_boolean (value));
3141 case PROP_IM_MODULE:
3142 g_free (priv->im_module);
3143 priv->im_module = g_value_dup_string (value);
3144 if (GTK_IS_IM_MULTICONTEXT (priv->im_context))
3145 gtk_im_multicontext_set_context_id (GTK_IM_MULTICONTEXT (priv->im_context), priv->im_module);
3148 case PROP_HADJUSTMENT:
3149 gtk_text_view_set_hadjustment (text_view, g_value_get_object (value));
3152 case PROP_VADJUSTMENT:
3153 gtk_text_view_set_vadjustment (text_view, g_value_get_object (value));
3156 case PROP_HSCROLL_POLICY:
3157 priv->hscroll_policy = g_value_get_enum (value);
3158 gtk_widget_queue_resize (GTK_WIDGET (text_view));
3161 case PROP_VSCROLL_POLICY:
3162 priv->vscroll_policy = g_value_get_enum (value);
3163 gtk_widget_queue_resize (GTK_WIDGET (text_view));
3167 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3173 gtk_text_view_get_property (GObject *object,
3178 GtkTextView *text_view;
3179 GtkTextViewPrivate *priv;
3181 text_view = GTK_TEXT_VIEW (object);
3182 priv = text_view->priv;
3186 case PROP_PIXELS_ABOVE_LINES:
3187 g_value_set_int (value, priv->pixels_above_lines);
3190 case PROP_PIXELS_BELOW_LINES:
3191 g_value_set_int (value, priv->pixels_below_lines);
3194 case PROP_PIXELS_INSIDE_WRAP:
3195 g_value_set_int (value, priv->pixels_inside_wrap);
3199 g_value_set_boolean (value, priv->editable);
3202 case PROP_WRAP_MODE:
3203 g_value_set_enum (value, priv->wrap_mode);
3206 case PROP_JUSTIFICATION:
3207 g_value_set_enum (value, priv->justify);
3210 case PROP_LEFT_MARGIN:
3211 g_value_set_int (value, priv->left_margin);
3214 case PROP_RIGHT_MARGIN:
3215 g_value_set_int (value, priv->right_margin);
3219 g_value_set_int (value, priv->indent);
3223 g_value_set_boxed (value, priv->tabs);
3226 case PROP_CURSOR_VISIBLE:
3227 g_value_set_boolean (value, priv->cursor_visible);
3231 g_value_set_object (value, get_buffer (text_view));
3234 case PROP_OVERWRITE:
3235 g_value_set_boolean (value, priv->overwrite_mode);
3238 case PROP_ACCEPTS_TAB:
3239 g_value_set_boolean (value, priv->accepts_tab);
3242 case PROP_IM_MODULE:
3243 g_value_set_string (value, priv->im_module);
3246 case PROP_HADJUSTMENT:
3247 g_value_set_object (value, priv->hadjustment);
3250 case PROP_VADJUSTMENT:
3251 g_value_set_object (value, priv->vadjustment);
3254 case PROP_HSCROLL_POLICY:
3255 g_value_set_enum (value, priv->hscroll_policy);
3258 case PROP_VSCROLL_POLICY:
3259 g_value_set_enum (value, priv->vscroll_policy);
3263 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3269 gtk_text_view_size_request (GtkWidget *widget,
3270 GtkRequisition *requisition)
3272 GtkTextView *text_view;
3273 GtkTextViewPrivate *priv;
3275 gint focus_edge_width;
3278 gboolean interior_focus;
3280 text_view = GTK_TEXT_VIEW (widget);
3281 priv = text_view->priv;
3283 gtk_widget_style_get (widget,
3284 "interior-focus", &interior_focus,
3285 "focus-line-width", &focus_width,
3289 focus_edge_width = 0;
3291 focus_edge_width = focus_width;
3295 priv->text_window->requisition.width = priv->layout->width;
3296 priv->text_window->requisition.height = priv->layout->height;
3300 priv->text_window->requisition.width = 0;
3301 priv->text_window->requisition.height = 0;
3304 requisition->width = priv->text_window->requisition.width + focus_edge_width * 2;
3305 requisition->height = priv->text_window->requisition.height + focus_edge_width * 2;
3307 if (priv->left_window)
3308 requisition->width += priv->left_window->requisition.width;
3310 if (priv->right_window)
3311 requisition->width += priv->right_window->requisition.width;
3313 if (priv->top_window)
3314 requisition->height += priv->top_window->requisition.height;
3316 if (priv->bottom_window)
3317 requisition->height += priv->bottom_window->requisition.height;
3319 border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view));
3320 requisition->width += border_width * 2;
3321 requisition->height += border_width * 2;
3323 tmp_list = priv->children;
3324 while (tmp_list != NULL)
3326 GtkTextViewChild *child = tmp_list->data;
3330 GtkRequisition child_req;
3331 GtkRequisition old_req;
3333 gtk_widget_get_preferred_size (child->widget, &old_req, NULL);
3335 gtk_widget_get_preferred_size (child->widget, &child_req, NULL);
3337 /* Invalidate layout lines if required */
3339 (old_req.width != child_req.width ||
3340 old_req.height != child_req.height))
3341 gtk_text_child_anchor_queue_resize (child->anchor,
3346 GtkRequisition child_req;
3348 gtk_widget_get_preferred_size (child->widget,
3352 tmp_list = g_slist_next (tmp_list);
3355 /* Cache the requested size of the text view so we can
3356 * compare it in the changed_handler() */
3357 priv->cached_size_request = *requisition;
3361 gtk_text_view_get_preferred_width (GtkWidget *widget,
3365 GtkRequisition requisition;
3367 gtk_text_view_size_request (widget, &requisition);
3369 *minimum = *natural = requisition.width;
3373 gtk_text_view_get_preferred_height (GtkWidget *widget,
3377 GtkRequisition requisition;
3379 gtk_text_view_size_request (widget, &requisition);
3381 *minimum = *natural = requisition.height;
3386 gtk_text_view_compute_child_allocation (GtkTextView *text_view,
3387 GtkTextViewChild *vc,
3388 GtkAllocation *allocation)
3394 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
3398 gtk_text_layout_get_line_yrange (text_view->priv->layout, &iter,
3401 buffer_y += vc->from_top_of_line;
3403 allocation->x = vc->from_left_of_buffer - text_view->priv->xoffset;
3404 allocation->y = buffer_y - text_view->priv->yoffset;
3406 gtk_widget_get_preferred_size (vc->widget, &req, NULL);
3407 allocation->width = req.width;
3408 allocation->height = req.height;
3412 gtk_text_view_update_child_allocation (GtkTextView *text_view,
3413 GtkTextViewChild *vc)
3415 GtkAllocation allocation;
3417 gtk_text_view_compute_child_allocation (text_view, vc, &allocation);
3419 gtk_widget_size_allocate (vc->widget, &allocation);
3422 g_print ("allocation for %p allocated to %d,%d yoffset = %d\n",
3424 vc->widget->allocation.x,
3425 vc->widget->allocation.y,
3426 text_view->priv->yoffset);
3431 gtk_text_view_child_allocated (GtkTextLayout *layout,
3437 GtkTextViewChild *vc = NULL;
3438 GtkTextView *text_view = data;
3440 /* x,y is the position of the child from the top of the line, and
3441 * from the left of the buffer. We have to translate that into text
3442 * window coordinates, then size_allocate the child.
3445 vc = g_object_get_data (G_OBJECT (child),
3446 "gtk-text-view-child");
3448 g_assert (vc != NULL);
3450 DV (g_print ("child allocated at %d,%d\n", x, y));
3452 vc->from_left_of_buffer = x;
3453 vc->from_top_of_line = y;
3455 gtk_text_view_update_child_allocation (text_view, vc);
3459 gtk_text_view_allocate_children (GtkTextView *text_view)
3463 DV(g_print(G_STRLOC"\n"));
3465 tmp_list = text_view->priv->children;
3466 while (tmp_list != NULL)
3468 GtkTextViewChild *child = tmp_list->data;
3470 g_assert (child != NULL);
3474 /* We need to force-validate the regions containing
3477 GtkTextIter child_loc;
3478 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
3482 /* Since anchored children are only ever allocated from
3483 * gtk_text_layout_get_line_display() we have to make sure
3484 * that the display line caching in the layout doesn't
3485 * get in the way. Invalidating the layout around the anchor
3488 if (_gtk_widget_get_alloc_needed (child->widget))
3490 GtkTextIter end = child_loc;
3491 gtk_text_iter_forward_char (&end);
3492 gtk_text_layout_invalidate (text_view->priv->layout, &child_loc, &end);
3495 gtk_text_layout_validate_yrange (text_view->priv->layout,
3501 GtkAllocation allocation;
3502 GtkRequisition child_req;
3504 allocation.x = child->x;
3505 allocation.y = child->y;
3507 gtk_widget_get_preferred_size (child->widget, &child_req, NULL);
3509 allocation.width = child_req.width;
3510 allocation.height = child_req.height;
3512 gtk_widget_size_allocate (child->widget, &allocation);
3515 tmp_list = g_slist_next (tmp_list);
3520 gtk_text_view_size_allocate (GtkWidget *widget,
3521 GtkAllocation *allocation)
3523 GtkAllocation widget_allocation;
3524 GtkTextView *text_view;
3525 GtkTextViewPrivate *priv;
3527 GdkRectangle text_rect;
3528 GdkRectangle left_rect;
3529 GdkRectangle right_rect;
3530 GdkRectangle top_rect;
3531 GdkRectangle bottom_rect;
3532 gint focus_edge_width;
3535 gboolean interior_focus;
3536 gboolean size_changed;
3538 text_view = GTK_TEXT_VIEW (widget);
3539 priv = text_view->priv;
3541 DV(g_print(G_STRLOC"\n"));
3543 gtk_widget_get_allocation (widget, &widget_allocation);
3545 widget_allocation.width != allocation->width ||
3546 widget_allocation.height != allocation->height;
3548 border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view));
3550 gtk_widget_set_allocation (widget, allocation);
3552 if (gtk_widget_get_realized (widget))
3554 gdk_window_move_resize (gtk_widget_get_window (widget),
3555 allocation->x, allocation->y,
3556 allocation->width, allocation->height);
3559 /* distribute width/height among child windows. Ensure all
3560 * windows get at least a 1x1 allocation.
3563 gtk_widget_style_get (widget,
3564 "interior-focus", &interior_focus,
3565 "focus-line-width", &focus_width,
3569 focus_edge_width = 0;
3571 focus_edge_width = focus_width;
3573 width = allocation->width - focus_edge_width * 2 - border_width * 2;
3575 if (priv->left_window)
3576 left_rect.width = priv->left_window->requisition.width;
3578 left_rect.width = 0;
3580 width -= left_rect.width;
3582 if (priv->right_window)
3583 right_rect.width = priv->right_window->requisition.width;
3585 right_rect.width = 0;
3587 width -= right_rect.width;
3589 text_rect.width = MAX (1, width);
3591 top_rect.width = text_rect.width;
3592 bottom_rect.width = text_rect.width;
3595 height = allocation->height - focus_edge_width * 2 - border_width * 2;
3597 if (priv->top_window)
3598 top_rect.height = priv->top_window->requisition.height;
3600 top_rect.height = 0;
3602 height -= top_rect.height;
3604 if (priv->bottom_window)
3605 bottom_rect.height = priv->bottom_window->requisition.height;
3607 bottom_rect.height = 0;
3609 height -= bottom_rect.height;
3611 text_rect.height = MAX (1, height);
3613 left_rect.height = text_rect.height;
3614 right_rect.height = text_rect.height;
3617 left_rect.x = focus_edge_width + border_width;
3618 top_rect.y = focus_edge_width + border_width;
3620 text_rect.x = left_rect.x + left_rect.width;
3621 text_rect.y = top_rect.y + top_rect.height;
3623 left_rect.y = text_rect.y;
3624 right_rect.y = text_rect.y;
3626 top_rect.x = text_rect.x;
3627 bottom_rect.x = text_rect.x;
3629 right_rect.x = text_rect.x + text_rect.width;
3630 bottom_rect.y = text_rect.y + text_rect.height;
3632 text_window_size_allocate (priv->text_window,
3635 if (priv->left_window)
3636 text_window_size_allocate (priv->left_window,
3639 if (priv->right_window)
3640 text_window_size_allocate (priv->right_window,
3643 if (priv->top_window)
3644 text_window_size_allocate (priv->top_window,
3647 if (priv->bottom_window)
3648 text_window_size_allocate (priv->bottom_window,
3651 gtk_text_view_update_layout_width (text_view);
3653 /* Note that this will do some layout validation */
3654 gtk_text_view_allocate_children (text_view);
3656 /* Update adjustments */
3657 gtk_text_view_set_hadjustment_values (text_view);
3658 gtk_text_view_set_vadjustment_values (text_view);
3660 /* The GTK resize loop processes all the pending exposes right
3661 * after doing the resize stuff, so the idle sizer won't have a
3662 * chance to run. So we do the work here.
3664 gtk_text_view_flush_first_validate (text_view);
3666 /* widget->window doesn't get auto-redrawn as the layout is computed, so has to
3669 if (size_changed && gtk_widget_get_realized (widget))
3670 gdk_window_invalidate_rect (gtk_widget_get_window (widget), NULL, FALSE);
3674 gtk_text_view_get_first_para_iter (GtkTextView *text_view,
3677 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter,
3678 text_view->priv->first_para_mark);
3682 gtk_text_view_validate_onscreen (GtkTextView *text_view)
3685 GtkTextViewPrivate *priv;
3687 widget = GTK_WIDGET (text_view);
3688 priv = text_view->priv;
3690 DV(g_print(">Validating onscreen ("G_STRLOC")\n"));
3692 if (SCREEN_HEIGHT (widget) > 0)
3694 GtkTextIter first_para;
3696 /* Be sure we've validated the stuff onscreen; if we
3697 * scrolled, these calls won't have any effect, because
3698 * they were called in the recursive validate_onscreen
3700 gtk_text_view_get_first_para_iter (text_view, &first_para);
3702 gtk_text_layout_validate_yrange (priv->layout,
3705 priv->first_para_pixels +
3706 SCREEN_HEIGHT (widget));
3709 priv->onscreen_validated = TRUE;
3711 DV(g_print(">Done validating onscreen, onscreen_validated = TRUE ("G_STRLOC")\n"));
3713 /* This can have the odd side effect of triggering a scroll, which should
3714 * flip "onscreen_validated" back to FALSE, but should also get us
3715 * back into this function to turn it on again.
3717 gtk_text_view_update_adjustments (text_view);
3719 g_assert (priv->onscreen_validated);
3723 gtk_text_view_flush_first_validate (GtkTextView *text_view)
3725 GtkTextViewPrivate *priv = text_view->priv;
3727 if (priv->first_validate_idle == 0)
3730 /* Do this first, which means that if an "invalidate"
3731 * occurs during any of this process, a new first_validate_callback
3732 * will be installed, and we'll start again.
3734 DV (g_print ("removing first validate in %s\n", G_STRLOC));
3735 g_source_remove (priv->first_validate_idle);
3736 priv->first_validate_idle = 0;
3738 /* be sure we have up-to-date screen size set on the
3741 gtk_text_view_update_layout_width (text_view);
3743 /* Bail out if we invalidated stuff; scrolling right away will just
3744 * confuse the issue.
3746 if (priv->first_validate_idle != 0)
3748 DV(g_print(">Width change forced requeue ("G_STRLOC")\n"));
3752 /* scroll to any marks, if that's pending. This can jump us to
3753 * the validation codepath used for scrolling onscreen, if so we
3754 * bail out. It won't jump if already in that codepath since
3755 * value_changed is not recursive, so also validate if
3758 if (!gtk_text_view_flush_scroll (text_view) ||
3759 !priv->onscreen_validated)
3760 gtk_text_view_validate_onscreen (text_view);
3762 DV(g_print(">Leaving first validate idle ("G_STRLOC")\n"));
3764 g_assert (priv->onscreen_validated);
3769 first_validate_callback (gpointer data)
3771 GtkTextView *text_view = data;
3773 /* Note that some of this code is duplicated at the end of size_allocate,
3774 * keep in sync with that.
3777 DV(g_print(G_STRLOC"\n"));
3779 gtk_text_view_flush_first_validate (text_view);
3785 incremental_validate_callback (gpointer data)
3787 GtkTextView *text_view = data;
3788 gboolean result = TRUE;
3790 DV(g_print(G_STRLOC"\n"));
3792 gtk_text_layout_validate (text_view->priv->layout, 2000);
3794 gtk_text_view_update_adjustments (text_view);
3796 if (gtk_text_layout_is_valid (text_view->priv->layout))
3798 text_view->priv->incremental_validate_idle = 0;
3806 gtk_text_view_invalidate (GtkTextView *text_view)
3808 GtkTextViewPrivate *priv = text_view->priv;
3810 DV (g_print (">Invalidate, onscreen_validated = %d now FALSE ("G_STRLOC")\n",
3811 priv->onscreen_validated));
3813 priv->onscreen_validated = FALSE;
3815 /* We'll invalidate when the layout is created */
3816 if (priv->layout == NULL)
3819 if (!priv->first_validate_idle)
3821 priv->first_validate_idle = gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
3822 DV (g_print (G_STRLOC": adding first validate idle %d\n",
3823 priv->first_validate_idle));
3826 if (!priv->incremental_validate_idle)
3828 priv->incremental_validate_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
3829 DV (g_print (G_STRLOC": adding incremental validate idle %d\n",
3830 priv->incremental_validate_idle));
3835 invalidated_handler (GtkTextLayout *layout,
3838 GtkTextView *text_view;
3840 text_view = GTK_TEXT_VIEW (data);
3842 DV (g_print ("Invalidating due to layout invalidate signal\n"));
3843 gtk_text_view_invalidate (text_view);
3847 changed_handler (GtkTextLayout *layout,
3853 GtkTextView *text_view;
3854 GtkTextViewPrivate *priv;
3856 GdkRectangle visible_rect;
3857 GdkRectangle redraw_rect;
3859 text_view = GTK_TEXT_VIEW (data);
3860 priv = text_view->priv;
3861 widget = GTK_WIDGET (data);
3863 DV(g_print(">Lines Validated ("G_STRLOC")\n"));
3865 if (gtk_widget_get_realized (widget))
3867 gtk_text_view_get_visible_rect (text_view, &visible_rect);
3869 redraw_rect.x = visible_rect.x;
3870 redraw_rect.width = visible_rect.width;
3871 redraw_rect.y = start_y;
3873 if (old_height == new_height)
3874 redraw_rect.height = old_height;
3875 else if (start_y + old_height > visible_rect.y)
3876 redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y);
3878 redraw_rect.height = 0;
3880 if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect))
3882 /* text_window_invalidate_rect() takes buffer coordinates */
3883 text_window_invalidate_rect (priv->text_window,
3886 DV(g_print(" invalidated rect: %d,%d %d x %d\n",
3890 redraw_rect.height));
3892 if (priv->left_window)
3893 text_window_invalidate_rect (priv->left_window,
3895 if (priv->right_window)
3896 text_window_invalidate_rect (priv->right_window,
3898 if (priv->top_window)
3899 text_window_invalidate_rect (priv->top_window,
3901 if (priv->bottom_window)
3902 text_window_invalidate_rect (priv->bottom_window,
3905 queue_update_im_spot_location (text_view);
3909 if (old_height != new_height)
3912 int new_first_para_top;
3913 int old_first_para_top;
3916 /* If the bottom of the old area was above the top of the
3917 * screen, we need to scroll to keep the current top of the
3918 * screen in place. Remember that first_para_pixels is the
3919 * position of the top of the screen in coordinates relative to
3920 * the first paragraph onscreen.
3922 * In short we are adding the height delta of the portion of the
3923 * changed region above first_para_mark to priv->yoffset.
3925 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first,
3926 priv->first_para_mark);
3928 gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL);
3930 old_first_para_top = priv->yoffset - priv->first_para_pixels;
3932 if (new_first_para_top != old_first_para_top)
3934 priv->yoffset += new_first_para_top - old_first_para_top;
3936 gtk_adjustment_set_value (text_view->priv->vadjustment, priv->yoffset);
3939 /* FIXME be smarter about which anchored widgets we update */
3941 tmp_list = priv->children;
3942 while (tmp_list != NULL)
3944 GtkTextViewChild *child = tmp_list->data;
3947 gtk_text_view_update_child_allocation (text_view, child);
3949 tmp_list = g_slist_next (tmp_list);
3954 GtkRequisition old_req = priv->cached_size_request;
3955 GtkRequisition new_req;
3957 /* Use this instead of gtk_widget_size_request wrapper
3958 * to avoid the optimization which just returns widget->requisition
3959 * if a resize hasn't been queued.
3961 gtk_text_view_size_request (widget, &new_req);
3963 if (old_req.width != new_req.width ||
3964 old_req.height != new_req.height)
3966 gtk_widget_queue_resize_no_redraw (widget);
3972 gtk_text_view_realize (GtkWidget *widget)
3974 GtkAllocation allocation;
3975 GtkTextView *text_view;
3976 GtkTextViewPrivate *priv;
3977 GtkStyleContext *context;
3978 GtkStateFlags state;
3980 GdkWindowAttr attributes;
3981 gint attributes_mask;
3985 text_view = GTK_TEXT_VIEW (widget);
3986 priv = text_view->priv;
3988 gtk_widget_set_realized (widget, TRUE);
3990 gtk_widget_get_allocation (widget, &allocation);
3992 attributes.window_type = GDK_WINDOW_CHILD;
3993 attributes.x = allocation.x;
3994 attributes.y = allocation.y;
3995 attributes.width = allocation.width;
3996 attributes.height = allocation.height;
3997 attributes.wclass = GDK_INPUT_OUTPUT;
3998 attributes.visual = gtk_widget_get_visual (widget);
3999 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK;
4001 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
4003 window = gdk_window_new (gtk_widget_get_parent_window (widget),
4004 &attributes, attributes_mask);
4005 gtk_widget_set_window (widget, window);
4006 gdk_window_set_user_data (window, widget);
4008 context = gtk_widget_get_style_context (widget);
4009 state = gtk_widget_get_state_flags (widget);
4011 gtk_style_context_get_background_color (context, state, &color);
4012 gdk_window_set_background_rgba (window, &color);
4014 text_window_realize (priv->text_window, widget);
4016 if (priv->left_window)
4017 text_window_realize (priv->left_window, widget);
4019 if (priv->top_window)
4020 text_window_realize (priv->top_window, widget);
4022 if (priv->right_window)
4023 text_window_realize (priv->right_window, widget);
4025 if (priv->bottom_window)
4026 text_window_realize (priv->bottom_window, widget);
4028 gtk_text_view_ensure_layout (text_view);
4032 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
4033 GDK_SELECTION_PRIMARY);
4034 gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard);
4037 tmp_list = priv->children;
4038 while (tmp_list != NULL)
4040 GtkTextViewChild *vc = tmp_list->data;
4042 text_view_child_set_parent_window (text_view, vc);
4044 tmp_list = tmp_list->next;
4047 /* Ensure updating the spot location. */
4048 gtk_text_view_update_im_spot_location (text_view);
4052 gtk_text_view_unrealize (GtkWidget *widget)
4054 GtkTextView *text_view;
4055 GtkTextViewPrivate *priv;
4057 text_view = GTK_TEXT_VIEW (widget);
4058 priv = text_view->priv;
4062 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
4063 GDK_SELECTION_PRIMARY);
4064 gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard);
4067 gtk_text_view_remove_validate_idles (text_view);
4069 if (priv->popup_menu)
4071 gtk_widget_destroy (priv->popup_menu);
4072 priv->popup_menu = NULL;
4075 text_window_unrealize (priv->text_window);
4077 if (priv->left_window)
4078 text_window_unrealize (priv->left_window);
4080 if (priv->top_window)
4081 text_window_unrealize (priv->top_window);
4083 if (priv->right_window)
4084 text_window_unrealize (priv->right_window);
4086 if (priv->bottom_window)
4087 text_window_unrealize (priv->bottom_window);
4089 gtk_text_view_destroy_layout (text_view);
4091 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->unrealize (widget);
4095 gtk_text_view_set_background (GtkTextView *text_view)
4097 GtkStyleContext *context;
4098 GtkStateFlags state;
4100 GtkTextViewPrivate *priv;
4103 widget = GTK_WIDGET (text_view);
4104 priv = text_view->priv;
4106 context = gtk_widget_get_style_context (widget);
4107 state = gtk_widget_get_state_flags (widget);
4109 /* Set bin window background */
4110 gtk_style_context_save (context);
4111 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
4113 gtk_style_context_get_background_color (context, state, &color);
4114 gdk_window_set_background_rgba (priv->text_window->bin_window, &color);
4116 gtk_style_context_restore (context);
4118 /* Set lateral panes background */
4119 gtk_style_context_get_background_color (context, state, &color);
4121 gdk_window_set_background_rgba (gtk_widget_get_window (widget), &color);
4123 if (priv->left_window)
4124 gdk_window_set_background_rgba (priv->left_window->bin_window, &color);
4126 if (priv->right_window)
4127 gdk_window_set_background_rgba (priv->right_window->bin_window, &color);
4129 if (priv->top_window)
4130 gdk_window_set_background_rgba (priv->top_window->bin_window, &color);
4132 if (priv->bottom_window)
4133 gdk_window_set_background_rgba (priv->bottom_window->bin_window, &color);
4137 gtk_text_view_style_updated (GtkWidget *widget)
4139 GtkTextView *text_view;
4140 GtkTextViewPrivate *priv;
4141 PangoContext *ltr_context, *rtl_context;
4143 text_view = GTK_TEXT_VIEW (widget);
4144 priv = text_view->priv;
4146 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->style_updated (widget);
4148 if (gtk_widget_get_realized (widget))
4150 gtk_text_view_set_background (text_view);
4153 if (priv->layout && priv->layout->default_style)
4155 gtk_text_view_set_attributes_from_style (text_view,
4156 priv->layout->default_style);
4158 ltr_context = gtk_widget_create_pango_context (widget);
4159 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
4160 rtl_context = gtk_widget_create_pango_context (widget);
4161 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
4163 gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context);
4165 g_object_unref (ltr_context);
4166 g_object_unref (rtl_context);
4171 gtk_text_view_direction_changed (GtkWidget *widget,
4172 GtkTextDirection previous_direction)
4174 GtkTextViewPrivate *priv = GTK_TEXT_VIEW (widget)->priv;
4176 if (priv->layout && priv->layout->default_style)
4178 priv->layout->default_style->direction = gtk_widget_get_direction (widget);
4180 gtk_text_layout_default_style_changed (priv->layout);
4185 gtk_text_view_state_flags_changed (GtkWidget *widget,
4186 GtkStateFlags previous_state)
4188 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
4191 if (gtk_widget_get_realized (widget))
4193 gtk_text_view_set_background (text_view);
4195 if (gtk_widget_is_sensitive (widget))
4196 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), GDK_XTERM);
4200 gdk_window_set_cursor (text_view->priv->text_window->bin_window, cursor);
4203 g_object_unref (cursor);
4205 text_view->priv->mouse_cursor_obscured = FALSE;
4208 if (!gtk_widget_is_sensitive (widget))
4210 /* Clear any selection */
4211 gtk_text_view_unselect (text_view);
4214 gtk_widget_queue_draw (widget);
4218 set_invisible_cursor (GdkWindow *window)
4220 GdkDisplay *display;
4223 display = gdk_window_get_display (window);
4224 cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR);
4226 gdk_window_set_cursor (window, cursor);
4228 g_object_unref (cursor);
4232 gtk_text_view_obscure_mouse_cursor (GtkTextView *text_view)
4234 if (text_view->priv->mouse_cursor_obscured)
4237 set_invisible_cursor (text_view->priv->text_window->bin_window);
4239 text_view->priv->mouse_cursor_obscured = TRUE;
4243 gtk_text_view_unobscure_mouse_cursor (GtkTextView *text_view)
4245 if (text_view->priv->mouse_cursor_obscured)
4249 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)),
4251 gdk_window_set_cursor (text_view->priv->text_window->bin_window, cursor);
4252 g_object_unref (cursor);
4253 text_view->priv->mouse_cursor_obscured = FALSE;
4258 gtk_text_view_grab_notify (GtkWidget *widget,
4259 gboolean was_grabbed)
4261 GtkTextViewPrivate *priv;
4263 priv = GTK_TEXT_VIEW (widget)->priv;
4265 if (priv->grab_device &&
4266 gtk_widget_device_is_shadowed (widget, priv->grab_device))
4268 gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget));
4269 gtk_text_view_unobscure_mouse_cursor (GTK_TEXT_VIEW (widget));
4279 get_event_coordinates (GdkEvent *event, gint *x, gint *y)
4282 switch (event->type)
4284 case GDK_MOTION_NOTIFY:
4285 *x = event->motion.x;
4286 *y = event->motion.y;
4290 case GDK_BUTTON_PRESS:
4291 case GDK_2BUTTON_PRESS:
4292 case GDK_3BUTTON_PRESS:
4293 case GDK_BUTTON_RELEASE:
4294 *x = event->button.x;
4295 *y = event->button.y;
4300 case GDK_KEY_RELEASE:
4301 case GDK_ENTER_NOTIFY:
4302 case GDK_LEAVE_NOTIFY:
4303 case GDK_PROPERTY_NOTIFY:
4304 case GDK_SELECTION_CLEAR:
4305 case GDK_SELECTION_REQUEST:
4306 case GDK_SELECTION_NOTIFY:
4307 case GDK_PROXIMITY_IN:
4308 case GDK_PROXIMITY_OUT:
4309 case GDK_DRAG_ENTER:
4310 case GDK_DRAG_LEAVE:
4311 case GDK_DRAG_MOTION:
4312 case GDK_DRAG_STATUS:
4313 case GDK_DROP_START:
4314 case GDK_DROP_FINISHED:
4324 emit_event_on_tags (GtkWidget *widget,
4330 gboolean retval = FALSE;
4332 tags = gtk_text_iter_get_tags (iter);
4337 GtkTextTag *tag = tmp->data;
4339 if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter))
4345 tmp = g_slist_next (tmp);
4348 g_slist_free (tags);
4354 gtk_text_view_event (GtkWidget *widget, GdkEvent *event)
4356 GtkTextView *text_view;
4357 GtkTextViewPrivate *priv;
4360 text_view = GTK_TEXT_VIEW (widget);
4361 priv = text_view->priv;
4363 if (priv->layout == NULL ||
4364 get_buffer (text_view) == NULL)
4367 if (event->any.window != priv->text_window->bin_window)
4370 if (get_event_coordinates (event, &x, &y))
4377 /* FIXME this is slow and we do it twice per event.
4378 * My favorite solution is to have GtkTextLayout cache
4379 * the last couple lookups.
4381 gtk_text_layout_get_iter_at_pixel (priv->layout,
4385 return emit_event_on_tags (widget, event, &iter);
4387 else if (event->type == GDK_KEY_PRESS ||
4388 event->type == GDK_KEY_RELEASE)
4392 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter,
4393 gtk_text_buffer_get_insert (get_buffer (text_view)));
4395 return emit_event_on_tags (widget, event, &iter);
4402 gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
4404 GtkTextView *text_view;
4405 GtkTextViewPrivate *priv;
4406 GtkTextMark *insert;
4408 gboolean can_insert;
4409 gboolean retval = FALSE;
4410 gboolean obscure = FALSE;
4412 text_view = GTK_TEXT_VIEW (widget);
4413 priv = text_view->priv;
4415 if (priv->layout == NULL ||
4416 get_buffer (text_view) == NULL)
4419 /* Make sure input method knows where it is */
4420 flush_update_im_spot_location (text_view);
4422 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
4423 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
4424 can_insert = gtk_text_iter_can_insert (&iter, priv->editable);
4425 if (gtk_im_context_filter_keypress (priv->im_context, event))
4427 priv->need_im_reset = TRUE;
4429 gtk_text_view_reset_im_context (text_view);
4430 obscure = can_insert;
4434 else if (GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_press_event (widget, event))
4438 /* use overall editability not can_insert, more predictable for users */
4439 else if (priv->editable &&
4440 (event->keyval == GDK_KEY_Return ||
4441 event->keyval == GDK_KEY_ISO_Enter ||
4442 event->keyval == GDK_KEY_KP_Enter))
4444 /* this won't actually insert the newline if the cursor isn't
4447 gtk_text_view_reset_im_context (text_view);
4448 gtk_text_view_commit_text (text_view, "\n");
4453 /* Pass through Tab as literal tab, unless Control is held down */
4454 else if ((event->keyval == GDK_KEY_Tab ||
4455 event->keyval == GDK_KEY_KP_Tab ||
4456 event->keyval == GDK_KEY_ISO_Left_Tab) &&
4457 !(event->state & GDK_CONTROL_MASK))
4459 /* If the text widget isn't editable overall, or if the application
4460 * has turned off "accepts_tab", move the focus instead
4462 if (priv->accepts_tab && priv->editable)
4464 gtk_text_view_reset_im_context (text_view);
4465 gtk_text_view_commit_text (text_view, "\t");
4469 g_signal_emit_by_name (text_view, "move-focus",
4470 (event->state & GDK_SHIFT_MASK) ?
4471 GTK_DIR_TAB_BACKWARD : GTK_DIR_TAB_FORWARD);
4479 gtk_text_view_obscure_mouse_cursor (text_view);
4481 gtk_text_view_reset_blink_time (text_view);
4482 gtk_text_view_pend_cursor_blink (text_view);
4488 gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
4490 GtkTextView *text_view;
4491 GtkTextViewPrivate *priv;
4492 GtkTextMark *insert;
4495 text_view = GTK_TEXT_VIEW (widget);
4496 priv = text_view->priv;
4498 if (priv->layout == NULL || get_buffer (text_view) == NULL)
4501 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
4502 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
4503 if (gtk_text_iter_can_insert (&iter, priv->editable) &&
4504 gtk_im_context_filter_keypress (priv->im_context, event))
4506 priv->need_im_reset = TRUE;
4510 return GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_release_event (widget, event);
4514 gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
4516 GtkTextView *text_view;
4517 GtkTextViewPrivate *priv;
4519 text_view = GTK_TEXT_VIEW (widget);
4520 priv = text_view->priv;
4522 gtk_widget_grab_focus (widget);
4524 if (event->window != priv->text_window->bin_window)
4526 /* Remove selection if any. */
4527 gtk_text_view_unselect (text_view);
4531 gtk_text_view_reset_blink_time (text_view);
4535 if (event->button == 3 && (event->state & GDK_CONTROL_MASK) != 0)
4536 _gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer);
4537 else if (event->button == 3)
4538 gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout);
4541 if (event->type == GDK_BUTTON_PRESS)
4543 gtk_text_view_reset_im_context (text_view);
4545 if (event->button == 1)
4547 /* If we're in the selection, start a drag copy/move of the
4548 * selection; otherwise, start creating a new selection.
4551 GtkTextIter start, end;
4553 gtk_text_layout_get_iter_at_pixel (priv->layout,
4555 event->x + priv->xoffset,
4556 event->y + priv->yoffset);
4558 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
4560 gtk_text_iter_in_range (&iter, &start, &end) &&
4561 !(event->state & GDK_SHIFT_MASK))
4563 priv->drag_start_x = event->x;
4564 priv->drag_start_y = event->y;
4565 priv->pending_place_cursor_button = event->button;
4569 gtk_text_view_start_selection_drag (text_view, &iter, event);
4574 else if (event->button == 2)
4578 /* We do not want to scroll back to the insert iter when we paste
4579 with the middle button */
4580 priv->scroll_after_paste = FALSE;
4582 gtk_text_layout_get_iter_at_pixel (priv->layout,
4584 event->x + priv->xoffset,
4585 event->y + priv->yoffset);
4587 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
4588 gtk_widget_get_clipboard (widget, GDK_SELECTION_PRIMARY),
4593 else if (event->button == 3)
4595 gtk_text_view_do_popup (text_view, event);
4599 else if ((event->type == GDK_2BUTTON_PRESS ||
4600 event->type == GDK_3BUTTON_PRESS) &&
4605 gtk_text_view_end_selection_drag (text_view);
4607 gtk_text_layout_get_iter_at_pixel (priv->layout,
4609 event->x + priv->xoffset,
4610 event->y + priv->yoffset);
4612 gtk_text_view_start_selection_drag (text_view, &iter, event);
4620 gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
4622 GtkTextView *text_view;
4623 GtkTextViewPrivate *priv;
4625 text_view = GTK_TEXT_VIEW (widget);
4626 priv = text_view->priv;
4628 if (event->window != priv->text_window->bin_window)
4631 if (event->button == 1)
4633 if (priv->drag_start_x >= 0)
4635 priv->drag_start_x = -1;
4636 priv->drag_start_y = -1;
4639 if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget)))
4641 else if (priv->pending_place_cursor_button == event->button)
4645 /* Unselect everything; we clicked inside selection, but
4646 * didn't move by the drag threshold, so just clear selection
4649 gtk_text_layout_get_iter_at_pixel (priv->layout,
4651 event->x + priv->xoffset,
4652 event->y + priv->yoffset);
4654 gtk_text_buffer_place_cursor (get_buffer (text_view), &iter);
4655 gtk_text_view_check_cursor_blink (text_view);
4657 priv->pending_place_cursor_button = 0;
4667 keymap_direction_changed (GdkKeymap *keymap,
4668 GtkTextView *text_view)
4670 gtk_text_view_check_keymap_direction (text_view);
4674 gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
4676 GtkTextView *text_view;
4677 GtkTextViewPrivate *priv;
4679 text_view = GTK_TEXT_VIEW (widget);
4680 priv = text_view->priv;
4682 gtk_widget_queue_draw (widget);
4684 DV(g_print (G_STRLOC": focus_in_event\n"));
4686 gtk_text_view_reset_blink_time (text_view);
4688 if (priv->cursor_visible && priv->layout)
4690 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
4691 gtk_text_view_check_cursor_blink (text_view);
4694 g_signal_connect (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4695 "direction-changed",
4696 G_CALLBACK (keymap_direction_changed), text_view);
4697 gtk_text_view_check_keymap_direction (text_view);
4701 priv->need_im_reset = TRUE;
4702 gtk_im_context_focus_in (priv->im_context);
4709 gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event)
4711 GtkTextView *text_view;
4712 GtkTextViewPrivate *priv;
4714 text_view = GTK_TEXT_VIEW (widget);
4715 priv = text_view->priv;
4717 gtk_text_view_end_selection_drag (text_view);
4719 gtk_widget_queue_draw (widget);
4721 DV(g_print (G_STRLOC": focus_out_event\n"));
4723 if (priv->cursor_visible && priv->layout)
4725 gtk_text_view_check_cursor_blink (text_view);
4726 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
4729 g_signal_handlers_disconnect_by_func (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4730 keymap_direction_changed,
4735 priv->need_im_reset = TRUE;
4736 gtk_im_context_focus_out (priv->im_context);
4743 gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event)
4745 GtkTextView *text_view;
4746 GtkTextViewPrivate *priv;
4748 text_view = GTK_TEXT_VIEW (widget);
4749 priv = text_view->priv;
4751 gtk_text_view_unobscure_mouse_cursor (text_view);
4753 if (event->window == priv->text_window->bin_window &&
4754 priv->drag_start_x >= 0)
4759 gdk_event_request_motions (event);
4761 if (gtk_drag_check_threshold (widget,
4767 gint buffer_x, buffer_y;
4769 gtk_text_view_window_to_buffer_coords (text_view,
4770 GTK_TEXT_WINDOW_TEXT,
4776 gtk_text_layout_get_iter_at_pixel (priv->layout,
4778 buffer_x, buffer_y);
4780 gtk_text_view_start_selection_dnd (text_view, &iter, event);
4789 gtk_text_view_paint (GtkWidget *widget,
4792 GtkTextView *text_view;
4793 GtkTextViewPrivate *priv;
4794 GList *child_exposes;
4797 text_view = GTK_TEXT_VIEW (widget);
4798 priv = text_view->priv;
4800 g_return_if_fail (priv->layout != NULL);
4801 g_return_if_fail (priv->xoffset >= 0);
4802 g_return_if_fail (priv->yoffset >= 0);
4804 while (priv->first_validate_idle != 0)
4806 DV (g_print (G_STRLOC": first_validate_idle: %d\n",
4807 priv->first_validate_idle));
4808 gtk_text_view_flush_first_validate (text_view);
4811 if (!priv->onscreen_validated)
4813 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.");
4814 g_assert_not_reached ();
4818 printf ("painting %d,%d %d x %d\n",
4820 area->width, area->height);
4823 child_exposes = NULL;
4826 cairo_translate (cr, -priv->xoffset, -priv->yoffset);
4828 gtk_text_layout_draw (priv->layout,
4835 tmp_list = child_exposes;
4836 while (tmp_list != NULL)
4838 GtkWidget *child = tmp_list->data;
4840 gtk_container_propagate_draw (GTK_CONTAINER (text_view),
4844 g_object_unref (child);
4846 tmp_list = tmp_list->next;
4849 g_list_free (child_exposes);
4853 gtk_text_view_draw (GtkWidget *widget,
4859 if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget)))
4860 gtk_text_view_draw_focus (widget, cr);
4862 window = gtk_text_view_get_window (GTK_TEXT_VIEW (widget),
4863 GTK_TEXT_WINDOW_TEXT);
4864 if (gtk_cairo_should_draw_window (cr, window))
4866 DV(g_print (">Exposed ("G_STRLOC")\n"));
4868 gtk_cairo_transform_to_window (cr, widget, window);
4869 gtk_text_view_paint (widget, cr);
4873 /* Propagate exposes to all unanchored children.
4874 * Anchored children are handled in gtk_text_view_paint().
4876 tmp_list = GTK_TEXT_VIEW (widget)->priv->children;
4877 while (tmp_list != NULL)
4879 GtkTextViewChild *vc = tmp_list->data;
4881 /* propagate_draw checks that event->window matches
4885 gtk_container_propagate_draw (GTK_CONTAINER (widget),
4889 tmp_list = tmp_list->next;
4896 gtk_text_view_draw_focus (GtkWidget *widget,
4899 gboolean interior_focus;
4901 /* We clear the focus if we are in interior focus mode. */
4902 gtk_widget_style_get (widget,
4903 "interior-focus", &interior_focus,
4906 if (gtk_widget_has_focus (widget) && !interior_focus)
4908 GtkStyleContext *context;
4910 context = gtk_widget_get_style_context (widget);
4912 gtk_render_focus (context, cr, 0, 0,
4913 gtk_widget_get_allocated_width (widget),
4914 gtk_widget_get_allocated_height (widget));
4919 gtk_text_view_focus (GtkWidget *widget,
4920 GtkDirectionType direction)
4922 GtkContainer *container;
4925 container = GTK_CONTAINER (widget);
4927 if (!gtk_widget_is_focus (widget) &&
4928 gtk_container_get_focus_child (container) == NULL)
4930 gtk_widget_grab_focus (widget);
4936 * Unset CAN_FOCUS flag so that gtk_container_focus() allows
4937 * children to get the focus
4939 gtk_widget_set_can_focus (widget, FALSE);
4940 result = GTK_WIDGET_CLASS (gtk_text_view_parent_class)->focus (widget, direction);
4941 gtk_widget_set_can_focus (widget, TRUE);
4952 gtk_text_view_add (GtkContainer *container,
4955 /* This is pretty random. */
4956 gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container),
4958 GTK_TEXT_WINDOW_WIDGET,
4963 gtk_text_view_remove (GtkContainer *container,
4966 GtkTextView *text_view;
4967 GtkTextViewPrivate *priv;
4968 GtkTextViewChild *vc;
4971 text_view = GTK_TEXT_VIEW (container);
4972 priv = text_view->priv;
4975 iter = priv->children;
4977 while (iter != NULL)
4981 if (vc->widget == child)
4984 iter = g_slist_next (iter);
4987 g_assert (iter != NULL); /* be sure we had the child in the list */
4989 priv->children = g_slist_remove (priv->children, vc);
4991 gtk_widget_unparent (vc->widget);
4993 text_view_child_free (vc);
4997 gtk_text_view_forall (GtkContainer *container,
4998 gboolean include_internals,
4999 GtkCallback callback,
5000 gpointer callback_data)
5003 GtkTextView *text_view;
5006 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
5007 g_return_if_fail (callback != NULL);
5009 text_view = GTK_TEXT_VIEW (container);
5011 copy = g_slist_copy (text_view->priv->children);
5014 while (iter != NULL)
5016 GtkTextViewChild *vc = iter->data;
5018 (* callback) (vc->widget, callback_data);
5020 iter = g_slist_next (iter);
5023 g_slist_free (copy);
5026 #define CURSOR_ON_MULTIPLIER 2
5027 #define CURSOR_OFF_MULTIPLIER 1
5028 #define CURSOR_PEND_MULTIPLIER 3
5029 #define CURSOR_DIVIDER 3
5032 cursor_blinks (GtkTextView *text_view)
5034 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5037 #ifdef DEBUG_VALIDATION_AND_SCROLLING
5040 if (gtk_get_debug_flags () & GTK_DEBUG_UPDATES)
5043 g_object_get (settings, "gtk-cursor-blink", &blink, NULL);
5048 if (text_view->priv->editable)
5050 GtkTextMark *insert;
5053 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
5054 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
5056 if (gtk_text_iter_editable (&iter, text_view->priv->editable))
5064 get_cursor_time (GtkTextView *text_view)
5066 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5069 g_object_get (settings, "gtk-cursor-blink-time", &time, NULL);
5075 get_cursor_blink_timeout (GtkTextView *text_view)
5077 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5080 g_object_get (settings, "gtk-cursor-blink-timeout", &time, NULL);
5091 blink_cb (gpointer data)
5093 GtkTextView *text_view;
5094 GtkTextViewPrivate *priv;
5098 text_view = GTK_TEXT_VIEW (data);
5099 priv = text_view->priv;
5101 if (!gtk_widget_has_focus (GTK_WIDGET (text_view)))
5103 g_warning ("GtkTextView - did not receive focus-out-event. If you\n"
5104 "connect a handler to this signal, it must return\n"
5105 "FALSE so the text view gets the event as well");
5107 gtk_text_view_check_cursor_blink (text_view);
5112 g_assert (priv->layout);
5113 g_assert (priv->cursor_visible);
5115 visible = gtk_text_layout_get_cursor_visible (priv->layout);
5117 blink_timeout = get_cursor_blink_timeout (text_view);
5118 if (priv->blink_time > 1000 * blink_timeout &&
5119 blink_timeout < G_MAXINT/1000)
5121 /* we've blinked enough without the user doing anything, stop blinking */
5123 priv->blink_timeout = 0;
5126 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
5131 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER / CURSOR_DIVIDER,
5134 priv->blink_time += get_cursor_time (text_view);
5137 /* Block changed_handler while changing the layout's cursor visibility
5138 * because it would expose the whole paragraph. Instead, we expose
5139 * the cursor's area(s) manually below.
5141 g_signal_handlers_block_by_func (priv->layout,
5144 gtk_text_layout_set_cursor_visible (priv->layout, !visible);
5145 g_signal_handlers_unblock_by_func (priv->layout,
5149 text_window_invalidate_cursors (priv->text_window);
5151 /* Remove ourselves */
5157 gtk_text_view_stop_cursor_blink (GtkTextView *text_view)
5159 if (text_view->priv->blink_timeout)
5161 g_source_remove (text_view->priv->blink_timeout);
5162 text_view->priv->blink_timeout = 0;
5167 gtk_text_view_check_cursor_blink (GtkTextView *text_view)
5169 GtkTextViewPrivate *priv = text_view->priv;
5171 if (priv->layout != NULL &&
5172 priv->cursor_visible &&
5173 gtk_widget_has_focus (GTK_WIDGET (text_view)))
5175 if (cursor_blinks (text_view))
5177 if (priv->blink_timeout == 0)
5179 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5181 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
5188 gtk_text_view_stop_cursor_blink (text_view);
5189 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5194 gtk_text_view_stop_cursor_blink (text_view);
5195 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
5200 gtk_text_view_pend_cursor_blink (GtkTextView *text_view)
5202 GtkTextViewPrivate *priv = text_view->priv;
5204 if (priv->layout != NULL &&
5205 priv->cursor_visible &&
5206 gtk_widget_has_focus (GTK_WIDGET (text_view)) &&
5207 cursor_blinks (text_view))
5209 gtk_text_view_stop_cursor_blink (text_view);
5210 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5212 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER / CURSOR_DIVIDER,
5219 gtk_text_view_reset_blink_time (GtkTextView *text_view)
5221 GtkTextViewPrivate *priv = text_view->priv;
5223 priv->blink_time = 0;
5228 * Key binding handlers
5232 gtk_text_view_move_iter_by_lines (GtkTextView *text_view,
5233 GtkTextIter *newplace,
5236 gboolean ret = TRUE;
5240 ret = gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, newplace);
5246 ret = gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, newplace);
5254 move_cursor (GtkTextView *text_view,
5255 const GtkTextIter *new_location,
5256 gboolean extend_selection)
5258 if (extend_selection)
5259 gtk_text_buffer_move_mark_by_name (get_buffer (text_view),
5263 gtk_text_buffer_place_cursor (get_buffer (text_view),
5265 gtk_text_view_check_cursor_blink (text_view);
5269 gtk_text_view_move_cursor_internal (GtkTextView *text_view,
5270 GtkMovementStep step,
5272 gboolean extend_selection)
5274 GtkTextViewPrivate *priv;
5276 GtkTextIter newplace;
5277 gboolean cancel_selection = FALSE;
5278 gint cursor_x_pos = 0;
5279 GtkDirectionType leave_direction = -1;
5281 priv = text_view->priv;
5283 if (!priv->cursor_visible)
5285 GtkScrollStep scroll_step;
5286 gdouble old_xpos, old_ypos;
5290 case GTK_MOVEMENT_VISUAL_POSITIONS:
5291 leave_direction = count > 0 ? GTK_DIR_RIGHT : GTK_DIR_LEFT;
5293 case GTK_MOVEMENT_LOGICAL_POSITIONS:
5294 case GTK_MOVEMENT_WORDS:
5295 scroll_step = GTK_SCROLL_HORIZONTAL_STEPS;
5297 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
5298 scroll_step = GTK_SCROLL_HORIZONTAL_ENDS;
5300 case GTK_MOVEMENT_DISPLAY_LINES:
5301 leave_direction = count > 0 ? GTK_DIR_DOWN : GTK_DIR_UP;
5303 case GTK_MOVEMENT_PARAGRAPHS:
5304 case GTK_MOVEMENT_PARAGRAPH_ENDS:
5305 scroll_step = GTK_SCROLL_STEPS;
5307 case GTK_MOVEMENT_PAGES:
5308 scroll_step = GTK_SCROLL_PAGES;
5310 case GTK_MOVEMENT_HORIZONTAL_PAGES:
5311 scroll_step = GTK_SCROLL_HORIZONTAL_PAGES;
5313 case GTK_MOVEMENT_BUFFER_ENDS:
5314 scroll_step = GTK_SCROLL_ENDS;
5317 scroll_step = GTK_SCROLL_PAGES;
5321 old_xpos = priv->xoffset;
5322 old_ypos = priv->yoffset;
5323 gtk_text_view_move_viewport (text_view, scroll_step, count);
5324 if ((old_xpos != priv->xoffset || old_ypos != priv->yoffset) &&
5325 leave_direction != -1 &&
5326 !gtk_widget_keynav_failed (GTK_WIDGET (text_view),
5329 g_signal_emit_by_name (text_view, "move-focus", leave_direction);
5335 gtk_text_view_reset_im_context (text_view);
5337 if (step == GTK_MOVEMENT_PAGES)
5339 if (!gtk_text_view_scroll_pages (text_view, count, extend_selection))
5340 gtk_widget_error_bell (GTK_WIDGET (text_view));
5342 gtk_text_view_check_cursor_blink (text_view);
5343 gtk_text_view_pend_cursor_blink (text_view);
5346 else if (step == GTK_MOVEMENT_HORIZONTAL_PAGES)
5348 if (!gtk_text_view_scroll_hpages (text_view, count, extend_selection))
5349 gtk_widget_error_bell (GTK_WIDGET (text_view));
5351 gtk_text_view_check_cursor_blink (text_view);
5352 gtk_text_view_pend_cursor_blink (text_view);
5356 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5357 gtk_text_buffer_get_insert (get_buffer (text_view)));
5359 if (! extend_selection)
5361 GtkTextIter sel_bound;
5363 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &sel_bound,
5364 gtk_text_buffer_get_selection_bound (get_buffer (text_view)));
5366 /* if we move forward, assume the cursor is at the end of the selection;
5367 * if we move backward, assume the cursor is at the start
5370 gtk_text_iter_order (&sel_bound, &insert);
5372 gtk_text_iter_order (&insert, &sel_bound);
5374 /* if we actually have a selection, just move *to* the beginning/end
5375 * of the selection and not *from* there on LOGICAL_POSITIONS
5376 * and VISUAL_POSITIONS movement
5378 if (! gtk_text_iter_equal (&sel_bound, &insert))
5379 cancel_selection = TRUE;
5384 if (step == GTK_MOVEMENT_DISPLAY_LINES)
5385 gtk_text_view_get_virtual_cursor_pos (text_view, &insert, &cursor_x_pos, NULL);
5389 case GTK_MOVEMENT_LOGICAL_POSITIONS:
5390 if (! cancel_selection)
5391 gtk_text_iter_forward_visible_cursor_positions (&newplace, count);
5394 case GTK_MOVEMENT_VISUAL_POSITIONS:
5395 if (! cancel_selection)
5396 gtk_text_layout_move_iter_visually (priv->layout,
5400 case GTK_MOVEMENT_WORDS:
5402 gtk_text_iter_backward_visible_word_starts (&newplace, -count);
5405 if (!gtk_text_iter_forward_visible_word_ends (&newplace, count))
5406 gtk_text_iter_forward_to_line_end (&newplace);
5410 case GTK_MOVEMENT_DISPLAY_LINES:
5413 leave_direction = GTK_DIR_UP;
5415 if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
5416 gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos);
5418 gtk_text_iter_set_line_offset (&newplace, 0);
5422 leave_direction = GTK_DIR_DOWN;
5424 if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
5425 gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos);
5427 gtk_text_iter_forward_to_line_end (&newplace);
5431 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
5433 gtk_text_view_move_iter_by_lines (text_view, &newplace, --count);
5434 else if (count < -1)
5435 gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count);
5438 gtk_text_layout_move_iter_to_line_end (priv->layout, &newplace, count);
5441 case GTK_MOVEMENT_PARAGRAPHS:
5444 if (!gtk_text_iter_ends_line (&newplace))
5446 gtk_text_iter_forward_to_line_end (&newplace);
5449 gtk_text_iter_forward_visible_lines (&newplace, count);
5450 gtk_text_iter_forward_to_line_end (&newplace);
5454 if (gtk_text_iter_get_line_offset (&newplace) > 0)
5455 gtk_text_iter_set_line_offset (&newplace, 0);
5456 gtk_text_iter_forward_visible_lines (&newplace, count);
5457 gtk_text_iter_set_line_offset (&newplace, 0);
5461 case GTK_MOVEMENT_PARAGRAPH_ENDS:
5464 if (!gtk_text_iter_ends_line (&newplace))
5465 gtk_text_iter_forward_to_line_end (&newplace);
5469 gtk_text_iter_set_line_offset (&newplace, 0);
5473 case GTK_MOVEMENT_BUFFER_ENDS:
5475 gtk_text_buffer_get_end_iter (get_buffer (text_view), &newplace);
5477 gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0);
5484 /* call move_cursor() even if the cursor hasn't moved, since it
5485 cancels the selection
5487 move_cursor (text_view, &newplace, extend_selection);
5489 if (!gtk_text_iter_equal (&insert, &newplace))
5491 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5492 gtk_text_view_scroll_mark_onscreen (text_view,
5493 gtk_text_buffer_get_insert (get_buffer (text_view)));
5495 if (step == GTK_MOVEMENT_DISPLAY_LINES)
5496 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
5498 else if (leave_direction != -1)
5500 if (!gtk_widget_keynav_failed (GTK_WIDGET (text_view),
5503 g_signal_emit_by_name (text_view, "move-focus", leave_direction);
5506 else if (! cancel_selection)
5508 gtk_widget_error_bell (GTK_WIDGET (text_view));
5511 gtk_text_view_check_cursor_blink (text_view);
5512 gtk_text_view_pend_cursor_blink (text_view);
5516 gtk_text_view_move_cursor (GtkTextView *text_view,
5517 GtkMovementStep step,
5519 gboolean extend_selection)
5521 gtk_text_view_move_cursor_internal (text_view, step, count, extend_selection);
5525 gtk_text_view_move_viewport (GtkTextView *text_view,
5529 GtkAdjustment *adjustment;
5534 case GTK_SCROLL_STEPS:
5535 case GTK_SCROLL_PAGES:
5536 case GTK_SCROLL_ENDS:
5537 adjustment = text_view->priv->vadjustment;
5539 case GTK_SCROLL_HORIZONTAL_STEPS:
5540 case GTK_SCROLL_HORIZONTAL_PAGES:
5541 case GTK_SCROLL_HORIZONTAL_ENDS:
5542 adjustment = text_view->priv->hadjustment;
5545 adjustment = text_view->priv->vadjustment;
5551 case GTK_SCROLL_STEPS:
5552 case GTK_SCROLL_HORIZONTAL_STEPS:
5553 increment = gtk_adjustment_get_step_increment (adjustment);
5555 case GTK_SCROLL_PAGES:
5556 case GTK_SCROLL_HORIZONTAL_PAGES:
5557 increment = gtk_adjustment_get_page_increment (adjustment);
5559 case GTK_SCROLL_ENDS:
5560 case GTK_SCROLL_HORIZONTAL_ENDS:
5561 increment = gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_lower (adjustment);
5568 gtk_adjustment_set_value (adjustment, gtk_adjustment_get_value (adjustment) + count * increment);
5572 gtk_text_view_set_anchor (GtkTextView *text_view)
5576 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5577 gtk_text_buffer_get_insert (get_buffer (text_view)));
5579 gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
5583 gtk_text_view_scroll_pages (GtkTextView *text_view,
5585 gboolean extend_selection)
5587 GtkTextViewPrivate *priv;
5588 GtkAdjustment *adjustment;
5589 gint cursor_x_pos, cursor_y_pos;
5590 GtkTextMark *insert_mark;
5591 GtkTextIter old_insert;
5592 GtkTextIter new_insert;
5598 priv = text_view->priv;
5600 g_return_val_if_fail (priv->vadjustment != NULL, FALSE);
5602 adjustment = priv->vadjustment;
5604 insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view));
5606 /* Make sure we start from the current cursor position, even
5607 * if it was offscreen, but don't queue more scrolls if we're
5610 if (priv->pending_scroll)
5611 cancel_pending_scroll (text_view);
5613 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5615 /* Validate the region that will be brought into view by the cursor motion
5617 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5618 &old_insert, insert_mark);
5622 gtk_text_view_get_first_para_iter (text_view, &anchor);
5623 y0 = gtk_adjustment_get_page_size (adjustment);
5624 y1 = gtk_adjustment_get_page_size (adjustment) + count * gtk_adjustment_get_page_increment (adjustment);
5628 gtk_text_view_get_first_para_iter (text_view, &anchor);
5629 y0 = count * gtk_adjustment_get_page_increment (adjustment) + gtk_adjustment_get_page_size (adjustment);
5633 gtk_text_layout_validate_yrange (priv->layout, &anchor, y0, y1);
5634 /* FIXME do we need to update the adjustment ranges here? */
5636 new_insert = old_insert;
5638 if (count < 0 && gtk_adjustment_get_value (adjustment) <= (gtk_adjustment_get_lower (adjustment) + 1e-12))
5640 /* already at top, just be sure we are at offset 0 */
5641 gtk_text_buffer_get_start_iter (get_buffer (text_view), &new_insert);
5642 move_cursor (text_view, &new_insert, extend_selection);
5644 else if (count > 0 && gtk_adjustment_get_value (adjustment) >= (gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment) - 1e-12))
5646 /* already at bottom, just be sure we are at the end */
5647 gtk_text_buffer_get_end_iter (get_buffer (text_view), &new_insert);
5648 move_cursor (text_view, &new_insert, extend_selection);
5652 gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos);
5654 oldval = gtk_adjustment_get_value (adjustment);
5655 newval = gtk_adjustment_get_value (adjustment);
5657 newval += count * gtk_adjustment_get_page_increment (adjustment);
5659 gtk_adjustment_set_value (adjustment, newval);
5660 cursor_y_pos += gtk_adjustment_get_value (adjustment) - oldval;
5662 gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos);
5663 clamp_iter_onscreen (text_view, &new_insert);
5664 move_cursor (text_view, &new_insert, extend_selection);
5666 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
5669 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
5670 * only guarantees 1 pixel onscreen.
5672 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5673 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5675 return !gtk_text_iter_equal (&old_insert, &new_insert);
5679 gtk_text_view_scroll_hpages (GtkTextView *text_view,
5681 gboolean extend_selection)
5683 GtkTextViewPrivate *priv;
5684 GtkAdjustment *adjustment;
5685 gint cursor_x_pos, cursor_y_pos;
5686 GtkTextMark *insert_mark;
5687 GtkTextIter old_insert;
5688 GtkTextIter new_insert;
5693 priv = text_view->priv;
5695 g_return_val_if_fail (priv->hadjustment != NULL, FALSE);
5697 adjustment = priv->hadjustment;
5699 insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view));
5701 /* Make sure we start from the current cursor position, even
5702 * if it was offscreen, but don't queue more scrolls if we're
5705 if (priv->pending_scroll)
5706 cancel_pending_scroll (text_view);
5708 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5710 /* Validate the line that we're moving within.
5712 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5713 &old_insert, insert_mark);
5715 gtk_text_layout_get_line_yrange (priv->layout, &old_insert, &y, &height);
5716 gtk_text_layout_validate_yrange (priv->layout, &old_insert, y, y + height);
5717 /* FIXME do we need to update the adjustment ranges here? */
5719 new_insert = old_insert;
5721 if (count < 0 && gtk_adjustment_get_value (adjustment) <= (gtk_adjustment_get_lower (adjustment) + 1e-12))
5723 /* already at far left, just be sure we are at offset 0 */
5724 gtk_text_iter_set_line_offset (&new_insert, 0);
5725 move_cursor (text_view, &new_insert, extend_selection);
5727 else if (count > 0 && gtk_adjustment_get_value (adjustment) >= (gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment) - 1e-12))
5729 /* already at far right, just be sure we are at the end */
5730 if (!gtk_text_iter_ends_line (&new_insert))
5731 gtk_text_iter_forward_to_line_end (&new_insert);
5732 move_cursor (text_view, &new_insert, extend_selection);
5736 gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos);
5738 oldval = gtk_adjustment_get_value (adjustment);
5739 newval = gtk_adjustment_get_value (adjustment);
5741 newval += count * gtk_adjustment_get_page_increment (adjustment);
5743 gtk_adjustment_set_value (adjustment, newval);
5744 cursor_x_pos += gtk_adjustment_get_value (adjustment) - oldval;
5746 gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos);
5747 clamp_iter_onscreen (text_view, &new_insert);
5748 move_cursor (text_view, &new_insert, extend_selection);
5750 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
5753 /* FIXME for lines shorter than the overall widget width, this results in a
5754 * "bounce" effect as we scroll to the right of the widget, then scroll
5755 * back to get the end of the line onscreen.
5756 * http://bugzilla.gnome.org/show_bug.cgi?id=68963
5759 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
5760 * only guarantees 1 pixel onscreen.
5762 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5763 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5765 return !gtk_text_iter_equal (&old_insert, &new_insert);
5769 whitespace (gunichar ch, gpointer user_data)
5771 return (ch == ' ' || ch == '\t');
5775 not_whitespace (gunichar ch, gpointer user_data)
5777 return !whitespace (ch, user_data);
5781 find_whitepace_region (const GtkTextIter *center,
5782 GtkTextIter *start, GtkTextIter *end)
5787 if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL))
5788 gtk_text_iter_forward_char (start); /* we want the first whitespace... */
5789 if (whitespace (gtk_text_iter_get_char (end), NULL))
5790 gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL);
5792 return !gtk_text_iter_equal (start, end);
5796 gtk_text_view_insert_at_cursor (GtkTextView *text_view,
5799 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
5800 text_view->priv->editable))
5802 gtk_widget_error_bell (GTK_WIDGET (text_view));
5807 gtk_text_view_delete_from_cursor (GtkTextView *text_view,
5811 GtkTextViewPrivate *priv;
5815 gboolean leave_one = FALSE;
5817 priv = text_view->priv;
5819 gtk_text_view_reset_im_context (text_view);
5821 if (type == GTK_DELETE_CHARS)
5823 /* Char delete deletes the selection, if one exists */
5824 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5829 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5830 gtk_text_buffer_get_insert (get_buffer (text_view)));
5837 case GTK_DELETE_CHARS:
5838 gtk_text_iter_forward_cursor_positions (&end, count);
5841 case GTK_DELETE_WORD_ENDS:
5843 gtk_text_iter_forward_word_ends (&end, count);
5845 gtk_text_iter_backward_word_starts (&start, 0 - count);
5848 case GTK_DELETE_WORDS:
5851 case GTK_DELETE_DISPLAY_LINE_ENDS:
5854 case GTK_DELETE_DISPLAY_LINES:
5857 case GTK_DELETE_PARAGRAPH_ENDS:
5860 /* If we're already at a newline, we need to
5861 * simply delete that newline, instead of
5862 * moving to the next one.
5864 if (gtk_text_iter_ends_line (&end))
5866 gtk_text_iter_forward_line (&end);
5872 if (!gtk_text_iter_forward_to_line_end (&end))
5880 if (gtk_text_iter_starts_line (&start))
5882 gtk_text_iter_backward_line (&start);
5883 if (!gtk_text_iter_ends_line (&end))
5884 gtk_text_iter_forward_to_line_end (&start);
5888 gtk_text_iter_set_line_offset (&start, 0);
5892 gtk_text_iter_backward_lines (&start, -count);
5896 case GTK_DELETE_PARAGRAPHS:
5899 gtk_text_iter_set_line_offset (&start, 0);
5900 gtk_text_iter_forward_to_line_end (&end);
5902 /* Do the lines beyond the first. */
5905 gtk_text_iter_forward_to_line_end (&end);
5911 /* FIXME negative count? */
5915 case GTK_DELETE_WHITESPACE:
5917 find_whitepace_region (&insert, &start, &end);
5925 if (!gtk_text_iter_equal (&start, &end))
5927 gtk_text_buffer_begin_user_action (get_buffer (text_view));
5929 if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end,
5933 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view),
5939 gtk_widget_error_bell (GTK_WIDGET (text_view));
5942 gtk_text_buffer_end_user_action (get_buffer (text_view));
5943 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
5945 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5946 gtk_text_view_scroll_mark_onscreen (text_view,
5947 gtk_text_buffer_get_insert (get_buffer (text_view)));
5951 gtk_widget_error_bell (GTK_WIDGET (text_view));
5956 gtk_text_view_backspace (GtkTextView *text_view)
5958 GtkTextViewPrivate *priv;
5961 priv = text_view->priv;
5963 gtk_text_view_reset_im_context (text_view);
5965 /* Backspace deletes the selection, if one exists */
5966 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5970 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5972 gtk_text_buffer_get_insert (get_buffer (text_view)));
5974 if (gtk_text_buffer_backspace (get_buffer (text_view), &insert,
5975 TRUE, priv->editable))
5977 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
5978 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5979 gtk_text_view_scroll_mark_onscreen (text_view,
5980 gtk_text_buffer_get_insert (get_buffer (text_view)));
5984 gtk_widget_error_bell (GTK_WIDGET (text_view));
5989 gtk_text_view_cut_clipboard (GtkTextView *text_view)
5991 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
5992 GDK_SELECTION_CLIPBOARD);
5994 gtk_text_buffer_cut_clipboard (get_buffer (text_view),
5996 text_view->priv->editable);
5997 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5998 gtk_text_view_scroll_mark_onscreen (text_view,
5999 gtk_text_buffer_get_insert (get_buffer (text_view)));
6003 gtk_text_view_copy_clipboard (GtkTextView *text_view)
6005 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6006 GDK_SELECTION_CLIPBOARD);
6008 gtk_text_buffer_copy_clipboard (get_buffer (text_view),
6011 /* on copy do not scroll, we are already onscreen */
6015 gtk_text_view_paste_clipboard (GtkTextView *text_view)
6017 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6018 GDK_SELECTION_CLIPBOARD);
6020 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
6023 text_view->priv->editable);
6027 gtk_text_view_paste_done_handler (GtkTextBuffer *buffer,
6028 GtkClipboard *clipboard,
6031 GtkTextView *text_view = data;
6032 GtkTextViewPrivate *priv;
6034 priv = text_view->priv;
6036 if (priv->scroll_after_paste)
6038 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6039 gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (buffer));
6042 priv->scroll_after_paste = TRUE;
6046 gtk_text_view_toggle_overwrite (GtkTextView *text_view)
6048 GtkTextViewPrivate *priv = text_view->priv;
6050 if (priv->text_window)
6051 text_window_invalidate_cursors (priv->text_window);
6053 priv->overwrite_mode = !priv->overwrite_mode;
6056 gtk_text_layout_set_overwrite_mode (priv->layout,
6057 priv->overwrite_mode && priv->editable);
6059 if (priv->text_window)
6060 text_window_invalidate_cursors (priv->text_window);
6062 gtk_text_view_pend_cursor_blink (text_view);
6064 g_object_notify (G_OBJECT (text_view), "overwrite");
6068 * gtk_text_view_get_overwrite:
6069 * @text_view: a #GtkTextView
6071 * Returns whether the #GtkTextView is in overwrite mode or not.
6073 * Return value: whether @text_view is in overwrite mode or not.
6078 gtk_text_view_get_overwrite (GtkTextView *text_view)
6080 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6082 return text_view->priv->overwrite_mode;
6086 * gtk_text_view_set_overwrite:
6087 * @text_view: a #GtkTextView
6088 * @overwrite: %TRUE to turn on overwrite mode, %FALSE to turn it off
6090 * Changes the #GtkTextView overwrite mode.
6095 gtk_text_view_set_overwrite (GtkTextView *text_view,
6098 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6099 overwrite = overwrite != FALSE;
6101 if (text_view->priv->overwrite_mode != overwrite)
6102 gtk_text_view_toggle_overwrite (text_view);
6106 * gtk_text_view_set_accepts_tab:
6107 * @text_view: A #GtkTextView
6108 * @accepts_tab: %TRUE if pressing the Tab key should insert a tab
6109 * character, %FALSE, if pressing the Tab key should move the
6112 * Sets the behavior of the text widget when the Tab key is pressed.
6113 * If @accepts_tab is %TRUE, a tab character is inserted. If @accepts_tab
6114 * is %FALSE the keyboard focus is moved to the next widget in the focus
6120 gtk_text_view_set_accepts_tab (GtkTextView *text_view,
6121 gboolean accepts_tab)
6123 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6125 accepts_tab = accepts_tab != FALSE;
6127 if (text_view->priv->accepts_tab != accepts_tab)
6129 text_view->priv->accepts_tab = accepts_tab;
6131 g_object_notify (G_OBJECT (text_view), "accepts-tab");
6136 * gtk_text_view_get_accepts_tab:
6137 * @text_view: A #GtkTextView
6139 * Returns whether pressing the Tab key inserts a tab characters.
6140 * gtk_text_view_set_accepts_tab().
6142 * Return value: %TRUE if pressing the Tab key inserts a tab character,
6143 * %FALSE if pressing the Tab key moves the keyboard focus.
6148 gtk_text_view_get_accepts_tab (GtkTextView *text_view)
6150 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6152 return text_view->priv->accepts_tab;
6160 gtk_text_view_unselect (GtkTextView *text_view)
6164 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
6165 gtk_text_buffer_get_insert (get_buffer (text_view)));
6167 gtk_text_buffer_move_mark (get_buffer (text_view),
6168 gtk_text_buffer_get_selection_bound (get_buffer (text_view)),
6173 get_iter_at_pointer (GtkTextView *text_view,
6179 GtkTextViewPrivate *priv;
6180 gint xcoord, ycoord;
6181 GdkModifierType state;
6183 priv = text_view->priv;
6185 gdk_window_get_device_position (priv->text_window->bin_window,
6186 device, &xcoord, &ycoord, &state);
6188 gtk_text_layout_get_iter_at_pixel (priv->layout,
6190 xcoord + priv->xoffset,
6191 ycoord + priv->yoffset);
6200 move_mark_to_pointer_and_scroll (GtkTextView *text_view,
6201 const gchar *mark_name,
6204 GtkTextIter newplace;
6207 get_iter_at_pointer (text_view, device, &newplace, NULL, NULL);
6209 mark = gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
6211 /* This may invalidate the layout */
6212 DV(g_print (G_STRLOC": move mark\n"));
6214 gtk_text_buffer_move_mark (get_buffer (text_view),
6218 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6219 gtk_text_view_scroll_mark_onscreen (text_view, mark);
6221 DV (g_print ("first validate idle leaving %s is %d\n",
6222 G_STRLOC, text_view->priv->first_validate_idle));
6226 selection_scan_timeout (gpointer data)
6228 GtkTextView *text_view;
6230 text_view = GTK_TEXT_VIEW (data);
6232 gtk_text_view_scroll_mark_onscreen (text_view,
6233 gtk_text_buffer_get_insert (get_buffer (text_view)));
6235 return TRUE; /* remain installed. */
6238 #define UPPER_OFFSET_ANCHOR 0.8
6239 #define LOWER_OFFSET_ANCHOR 0.2
6242 check_scroll (gdouble offset, GtkAdjustment *adjustment)
6244 if ((offset > UPPER_OFFSET_ANCHOR &&
6245 gtk_adjustment_get_value (adjustment) + gtk_adjustment_get_page_size (adjustment) < gtk_adjustment_get_upper (adjustment)) ||
6246 (offset < LOWER_OFFSET_ANCHOR &&
6247 gtk_adjustment_get_value (adjustment) > gtk_adjustment_get_lower (adjustment)))
6254 drag_scan_timeout (gpointer data)
6256 GtkTextView *text_view;
6257 GtkTextViewPrivate *priv;
6258 GtkTextIter newplace;
6260 gdouble pointer_xoffset, pointer_yoffset;
6262 text_view = GTK_TEXT_VIEW (data);
6263 priv = text_view->priv;
6265 get_iter_at_pointer (text_view, priv->dnd_device, &newplace, &x, &y);
6267 gtk_text_buffer_move_mark (get_buffer (text_view),
6271 pointer_xoffset = (gdouble) x / gdk_window_get_width (priv->text_window->bin_window);
6272 pointer_yoffset = (gdouble) y / gdk_window_get_height (priv->text_window->bin_window);
6274 if (check_scroll (pointer_xoffset, priv->hadjustment) ||
6275 check_scroll (pointer_yoffset, priv->vadjustment))
6277 /* do not make offsets surpass lower nor upper anchors, this makes
6278 * scrolling speed relative to the distance of the pointer to the
6279 * anchors when it moves beyond them.
6281 pointer_xoffset = CLAMP (pointer_xoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR);
6282 pointer_yoffset = CLAMP (pointer_yoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR);
6284 gtk_text_view_scroll_to_mark (text_view,
6286 0., TRUE, pointer_xoffset, pointer_yoffset);
6297 } SelectionGranularity;
6300 * Move @start and @end to the boundaries of the selection unit (indicated by
6301 * @granularity) which contained @start initially.
6302 * If the selction unit is SELECT_WORDS and @start is not contained in a word
6303 * the selection is extended to all the white spaces between the end of the
6304 * word preceding @start and the start of the one following.
6307 extend_selection (GtkTextView *text_view,
6308 SelectionGranularity granularity,
6314 if (granularity == SELECT_WORDS)
6316 if (gtk_text_iter_inside_word (start))
6318 if (!gtk_text_iter_starts_word (start))
6319 gtk_text_iter_backward_visible_word_start (start);
6321 if (!gtk_text_iter_ends_word (end))
6323 if (!gtk_text_iter_forward_visible_word_end (end))
6324 gtk_text_iter_forward_to_end (end);
6332 if (gtk_text_iter_backward_visible_word_start (&tmp))
6333 gtk_text_iter_forward_visible_word_end (&tmp);
6335 if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (start))
6338 gtk_text_iter_set_line_offset (start, 0);
6341 if (!gtk_text_iter_forward_visible_word_end (&tmp))
6342 gtk_text_iter_forward_to_end (&tmp);
6344 if (gtk_text_iter_ends_word (&tmp))
6345 gtk_text_iter_backward_visible_word_start (&tmp);
6347 if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (end))
6350 gtk_text_iter_forward_to_line_end (end);
6353 else if (granularity == SELECT_LINES)
6355 if (gtk_text_view_starts_display_line (text_view, start))
6357 /* If on a display line boundary, we assume the user
6358 * clicked off the end of a line and we therefore select
6359 * the line before the boundary.
6361 gtk_text_view_backward_display_line_start (text_view, start);
6365 /* start isn't on the start of a line, so we move it to the
6366 * start, and move end to the end unless it's already there.
6368 gtk_text_view_backward_display_line_start (text_view, start);
6370 if (!gtk_text_view_starts_display_line (text_view, end))
6371 gtk_text_view_forward_display_line_end (text_view, end);
6379 SelectionGranularity granularity;
6380 GtkTextMark *orig_start;
6381 GtkTextMark *orig_end;
6385 selection_data_free (SelectionData *data)
6387 if (data->orig_start != NULL)
6388 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_start),
6390 if (data->orig_end != NULL)
6391 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_end),
6397 selection_motion_event_handler (GtkTextView *text_view,
6398 GdkEventMotion *event,
6399 SelectionData *data)
6401 GtkTextViewPrivate *priv;
6403 priv = text_view->priv;
6404 gdk_event_request_motions (event);
6406 if (priv->grab_device != event->device)
6409 if (data->granularity == SELECT_CHARACTERS)
6411 move_mark_to_pointer_and_scroll (text_view, "insert", event->device);
6415 GtkTextIter cursor, start, end;
6416 GtkTextIter orig_start, orig_end;
6417 GtkTextBuffer *buffer;
6419 buffer = get_buffer (text_view);
6421 gtk_text_buffer_get_iter_at_mark (buffer, &orig_start, data->orig_start);
6422 gtk_text_buffer_get_iter_at_mark (buffer, &orig_end, data->orig_end);
6424 get_iter_at_pointer (text_view, event->device, &cursor, NULL, NULL);
6427 extend_selection (text_view, data->granularity, &start, &end);
6429 /* either the selection extends to the front, or end (or not) */
6430 if (gtk_text_iter_compare (&cursor, &orig_start) < 0)
6431 gtk_text_buffer_select_range (buffer, &start, &orig_end);
6433 gtk_text_buffer_select_range (buffer, &end, &orig_start);
6435 gtk_text_view_scroll_mark_onscreen (text_view,
6436 gtk_text_buffer_get_insert (buffer));
6439 /* If we had to scroll offscreen, insert a timeout to do so
6440 * again. Note that in the timeout, even if the mouse doesn't
6441 * move, due to this scroll xoffset/yoffset will have changed
6442 * and we'll need to scroll again.
6444 if (text_view->priv->scroll_timeout != 0) /* reset on every motion event */
6445 g_source_remove (text_view->priv->scroll_timeout);
6447 text_view->priv->scroll_timeout =
6448 gdk_threads_add_timeout (50, selection_scan_timeout, text_view);
6454 gtk_text_view_start_selection_drag (GtkTextView *text_view,
6455 const GtkTextIter *iter,
6456 GdkEventButton *button)
6458 GtkTextViewPrivate *priv;
6459 GtkTextIter cursor, ins, bound;
6460 GtkTextIter orig_start, orig_end;
6461 GtkTextBuffer *buffer;
6462 SelectionData *data;
6464 if (text_view->priv->selection_drag_handler != 0)
6467 priv = text_view->priv;
6468 data = g_new0 (SelectionData, 1);
6470 if (button->type == GDK_2BUTTON_PRESS)
6471 data->granularity = SELECT_WORDS;
6472 else if (button->type == GDK_3BUTTON_PRESS)
6473 data->granularity = SELECT_LINES;
6475 data->granularity = SELECT_CHARACTERS;
6477 priv->grab_device = button->device;
6478 gtk_device_grab_add (GTK_WIDGET (text_view),
6482 buffer = get_buffer (text_view);
6487 extend_selection (text_view, data->granularity, &ins, &bound);
6491 if (button->state & GDK_SHIFT_MASK)
6493 /* Extend selection */
6494 GtkTextIter old_ins, old_bound;
6495 GtkTextIter old_start, old_end;
6497 gtk_text_buffer_get_iter_at_mark (buffer, &old_ins, gtk_text_buffer_get_insert (buffer));
6498 gtk_text_buffer_get_iter_at_mark (buffer, &old_bound, gtk_text_buffer_get_selection_bound (buffer));
6499 old_start = old_ins;
6500 old_end = old_bound;
6501 gtk_text_iter_order (&old_start, &old_end);
6503 /* move the front cursor, if the mouse is in front of the selection. Should the
6504 * cursor however be inside the selection (this happens on tripple click) then we
6505 * move the side which was last moved (current insert mark) */
6506 if (gtk_text_iter_compare (&cursor, &old_start) <= 0 ||
6507 (gtk_text_iter_compare (&cursor, &old_end) < 0 &&
6508 gtk_text_iter_compare (&old_ins, &old_bound) <= 0))
6511 orig_start = old_end;
6523 gtk_text_buffer_select_range (buffer, &ins, &bound);
6525 gtk_text_iter_order (&orig_start, &orig_end);
6526 data->orig_start = gtk_text_buffer_create_mark (buffer, NULL,
6528 data->orig_end = gtk_text_buffer_create_mark (buffer, NULL,
6530 gtk_text_view_check_cursor_blink (text_view);
6532 text_view->priv->selection_drag_handler = g_signal_connect_data (text_view,
6533 "motion-notify-event",
6534 G_CALLBACK (selection_motion_event_handler),
6536 (GClosureNotify) selection_data_free, 0);
6539 /* returns whether we were really dragging */
6541 gtk_text_view_end_selection_drag (GtkTextView *text_view)
6543 GtkTextViewPrivate *priv;
6545 priv = text_view->priv;
6547 if (!priv->grab_device)
6550 if (priv->selection_drag_handler == 0)
6553 g_signal_handler_disconnect (text_view, priv->selection_drag_handler);
6554 priv->selection_drag_handler = 0;
6556 if (priv->scroll_timeout != 0)
6558 g_source_remove (priv->scroll_timeout);
6559 priv->scroll_timeout = 0;
6562 gtk_device_grab_remove (GTK_WIDGET (text_view),
6564 priv->grab_device = NULL;
6574 gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
6575 GtkTextAttributes *values)
6577 GtkStyleContext *context;
6578 GdkRGBA bg_color, fg_color;
6579 GtkStateFlags state;
6581 context = gtk_widget_get_style_context (GTK_WIDGET (text_view));
6582 state = gtk_widget_get_state_flags (GTK_WIDGET (text_view));
6584 gtk_style_context_save (context);
6585 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
6587 gtk_style_context_get_background_color (context, state, &bg_color);
6588 gtk_style_context_get_color (context, state, &fg_color);
6590 values->appearance.bg_color.red = CLAMP (bg_color.red * 65535. + 0.5, 0, 65535);
6591 values->appearance.bg_color.green = CLAMP (bg_color.green * 65535. + 0.5, 0, 65535);
6592 values->appearance.bg_color.blue = CLAMP (bg_color.blue * 65535. + 0.5, 0, 65535);
6594 values->appearance.fg_color.red = CLAMP (fg_color.red * 65535. + 0.5, 0, 65535);
6595 values->appearance.fg_color.green = CLAMP (fg_color.green * 65535. + 0.5, 0, 65535);
6596 values->appearance.fg_color.blue = CLAMP (fg_color.blue * 65535. + 0.5, 0, 65535);
6599 pango_font_description_free (values->font);
6601 values->font = pango_font_description_copy (gtk_style_context_get_font (context, state));
6603 gtk_style_context_restore (context);
6607 gtk_text_view_check_keymap_direction (GtkTextView *text_view)
6609 GtkTextViewPrivate *priv = text_view->priv;
6613 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
6614 GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)));
6615 GtkTextDirection new_cursor_dir;
6616 GtkTextDirection new_keyboard_dir;
6617 gboolean split_cursor;
6619 g_object_get (settings,
6620 "gtk-split-cursor", &split_cursor,
6623 if (gdk_keymap_get_direction (keymap) == PANGO_DIRECTION_RTL)
6624 new_keyboard_dir = GTK_TEXT_DIR_RTL;
6626 new_keyboard_dir = GTK_TEXT_DIR_LTR;
6629 new_cursor_dir = GTK_TEXT_DIR_NONE;
6631 new_cursor_dir = new_keyboard_dir;
6633 gtk_text_layout_set_cursor_direction (priv->layout, new_cursor_dir);
6634 gtk_text_layout_set_keyboard_direction (priv->layout, new_keyboard_dir);
6639 gtk_text_view_ensure_layout (GtkTextView *text_view)
6642 GtkTextViewPrivate *priv;
6644 widget = GTK_WIDGET (text_view);
6645 priv = text_view->priv;
6647 if (priv->layout == NULL)
6649 GtkTextAttributes *style;
6650 PangoContext *ltr_context, *rtl_context;
6653 DV(g_print(G_STRLOC"\n"));
6655 priv->layout = gtk_text_layout_new ();
6657 g_signal_connect (priv->layout,
6659 G_CALLBACK (invalidated_handler),
6662 g_signal_connect (priv->layout,
6664 G_CALLBACK (changed_handler),
6667 g_signal_connect (priv->layout,
6669 G_CALLBACK (gtk_text_view_child_allocated),
6672 if (get_buffer (text_view))
6673 gtk_text_layout_set_buffer (priv->layout, get_buffer (text_view));
6675 if ((gtk_widget_has_focus (widget) && priv->cursor_visible))
6676 gtk_text_view_pend_cursor_blink (text_view);
6678 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
6680 gtk_text_layout_set_overwrite_mode (priv->layout,
6681 priv->overwrite_mode && priv->editable);
6683 ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
6684 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
6685 rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
6686 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
6688 gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context);
6690 g_object_unref (ltr_context);
6691 g_object_unref (rtl_context);
6693 gtk_text_view_check_keymap_direction (text_view);
6695 style = gtk_text_attributes_new ();
6697 gtk_text_view_set_attributes_from_style (text_view, style);
6699 style->pixels_above_lines = priv->pixels_above_lines;
6700 style->pixels_below_lines = priv->pixels_below_lines;
6701 style->pixels_inside_wrap = priv->pixels_inside_wrap;
6702 style->left_margin = priv->left_margin;
6703 style->right_margin = priv->right_margin;
6704 style->indent = priv->indent;
6705 style->tabs = priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL;
6707 style->wrap_mode = priv->wrap_mode;
6708 style->justification = priv->justify;
6709 style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view));
6711 gtk_text_layout_set_default_style (priv->layout, style);
6713 gtk_text_attributes_unref (style);
6715 /* Set layout for all anchored children */
6717 tmp_list = priv->children;
6718 while (tmp_list != NULL)
6720 GtkTextViewChild *vc = tmp_list->data;
6724 gtk_text_anchored_child_set_layout (vc->widget,
6726 /* vc may now be invalid! */
6729 tmp_list = g_slist_next (tmp_list);
6732 gtk_text_view_invalidate (text_view);
6737 * gtk_text_view_get_default_attributes:
6738 * @text_view: a #GtkTextView
6740 * Obtains a copy of the default text attributes. These are the
6741 * attributes used for text unless a tag overrides them.
6742 * You'd typically pass the default attributes in to
6743 * gtk_text_iter_get_attributes() in order to get the
6744 * attributes in effect at a given text position.
6746 * The return value is a copy owned by the caller of this function,
6747 * and should be freed.
6749 * Return value: a new #GtkTextAttributes
6752 gtk_text_view_get_default_attributes (GtkTextView *text_view)
6754 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
6756 gtk_text_view_ensure_layout (text_view);
6758 return gtk_text_attributes_copy (text_view->priv->layout->default_style);
6762 gtk_text_view_destroy_layout (GtkTextView *text_view)
6764 GtkTextViewPrivate *priv = text_view->priv;
6770 gtk_text_view_remove_validate_idles (text_view);
6772 g_signal_handlers_disconnect_by_func (priv->layout,
6773 invalidated_handler,
6775 g_signal_handlers_disconnect_by_func (priv->layout,
6779 /* Remove layout from all anchored children */
6780 tmp_list = priv->children;
6781 while (tmp_list != NULL)
6783 GtkTextViewChild *vc = tmp_list->data;
6787 gtk_text_anchored_child_set_layout (vc->widget, NULL);
6788 /* vc may now be invalid! */
6791 tmp_list = g_slist_next (tmp_list);
6794 gtk_text_view_stop_cursor_blink (text_view);
6795 gtk_text_view_end_selection_drag (text_view);
6797 g_object_unref (priv->layout);
6798 priv->layout = NULL;
6803 * gtk_text_view_reset_im_context:
6804 * @text_view: a #GtkTextView
6806 * Reset the input method context of the text view if needed.
6808 * This can be necessary in the case where modifying the buffer
6809 * would confuse on-going input method behavior.
6814 gtk_text_view_reset_im_context (GtkTextView *text_view)
6816 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6818 if (text_view->priv->need_im_reset)
6820 text_view->priv->need_im_reset = FALSE;
6821 gtk_im_context_reset (text_view->priv->im_context);
6826 * gtk_text_view_im_context_filter_keypress:
6827 * @text_view: a #GtkTextView
6828 * @event: the key event
6830 * Allow the #GtkTextView input method to internally handle key press
6831 * and release events. If this function returns %TRUE, then no further
6832 * processing should be done for this key event. See
6833 * gtk_im_context_filter_keypress().
6835 * Note that you are expected to call this function from your handler
6836 * when overriding key event handling. This is needed in the case when
6837 * you need to insert your own key handling between the input method
6838 * and the default key event handling of the #GtkTextView.
6842 * gtk_foo_bar_key_press_event (GtkWidget *widget,
6843 * GdkEventKey *event)
6845 * if ((key->keyval == GDK_KEY_Return || key->keyval == GDK_KEY_KP_Enter))
6847 * if (gtk_text_view_im_context_filter_keypress (GTK_TEXT_VIEW (view), event))
6851 * /* Do some stuff */
6853 * return GTK_WIDGET_CLASS (gtk_foo_bar_parent_class)->key_press_event (widget, event);
6857 * Return value: %TRUE if the input method handled the key event.
6862 gtk_text_view_im_context_filter_keypress (GtkTextView *text_view,
6865 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6867 return gtk_im_context_filter_keypress (text_view->priv->im_context, event);
6875 drag_begin_cb (GtkWidget *widget,
6876 GdkDragContext *context,
6879 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
6880 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
6883 cairo_surface_t *surface = NULL;
6885 g_signal_handlers_disconnect_by_func (widget, drag_begin_cb, NULL);
6887 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
6888 surface = _gtk_text_util_create_rich_drag_icon (widget, buffer, &start, &end);
6892 gtk_drag_set_icon_surface (context, surface);
6893 cairo_surface_destroy (surface);
6897 gtk_drag_set_icon_default (context);
6902 gtk_text_view_start_selection_dnd (GtkTextView *text_view,
6903 const GtkTextIter *iter,
6904 GdkEventMotion *event)
6906 GtkTargetList *target_list;
6908 text_view->priv->drag_start_x = -1;
6909 text_view->priv->drag_start_y = -1;
6910 text_view->priv->pending_place_cursor_button = 0;
6912 target_list = gtk_text_buffer_get_copy_target_list (get_buffer (text_view));
6914 g_signal_connect (text_view, "drag-begin",
6915 G_CALLBACK (drag_begin_cb), NULL);
6916 gtk_drag_begin (GTK_WIDGET (text_view), target_list,
6917 GDK_ACTION_COPY | GDK_ACTION_MOVE,
6918 1, (GdkEvent*)event);
6922 gtk_text_view_drag_begin (GtkWidget *widget,
6923 GdkDragContext *context)
6929 gtk_text_view_drag_end (GtkWidget *widget,
6930 GdkDragContext *context)
6935 gtk_text_view_drag_data_get (GtkWidget *widget,
6936 GdkDragContext *context,
6937 GtkSelectionData *selection_data,
6941 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
6942 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
6944 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
6946 gtk_selection_data_set (selection_data,
6947 gdk_atom_intern_static_string ("GTK_TEXT_BUFFER_CONTENTS"),
6952 else if (info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
6959 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
6961 /* Extract the selected text */
6962 str = gtk_text_buffer_serialize (buffer, buffer,
6963 gtk_selection_data_get_target (selection_data),
6970 gtk_selection_data_set (selection_data,
6971 gtk_selection_data_get_target (selection_data),
6973 (guchar *) str, len);
6983 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
6985 /* Extract the selected text */
6986 str = gtk_text_iter_get_visible_text (&start, &end);
6991 gtk_selection_data_set_text (selection_data, str, -1);
6998 gtk_text_view_drag_data_delete (GtkWidget *widget,
6999 GdkDragContext *context)
7001 gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->priv->buffer,
7002 TRUE, GTK_TEXT_VIEW (widget)->priv->editable);
7006 gtk_text_view_drag_leave (GtkWidget *widget,
7007 GdkDragContext *context,
7010 GtkTextView *text_view;
7011 GtkTextViewPrivate *priv;
7013 text_view = GTK_TEXT_VIEW (widget);
7014 priv = text_view->priv;
7016 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7018 if (priv->dnd_device)
7019 priv->dnd_device = NULL;
7021 if (priv->scroll_timeout != 0)
7022 g_source_remove (priv->scroll_timeout);
7024 priv->scroll_timeout = 0;
7028 gtk_text_view_drag_motion (GtkWidget *widget,
7029 GdkDragContext *context,
7034 GtkTextIter newplace;
7035 GtkTextView *text_view;
7036 GtkTextViewPrivate *priv;
7039 GdkRectangle target_rect;
7042 GdkDragAction suggested_action = 0;
7044 text_view = GTK_TEXT_VIEW (widget);
7045 priv = text_view->priv;
7047 target_rect = priv->text_window->allocation;
7049 if (x < target_rect.x ||
7050 y < target_rect.y ||
7051 x > (target_rect.x + target_rect.width) ||
7052 y > (target_rect.y + target_rect.height))
7053 return FALSE; /* outside the text window, allow parent widgets to handle event */
7055 gtk_text_view_window_to_buffer_coords (text_view,
7056 GTK_TEXT_WINDOW_WIDGET,
7060 gtk_text_layout_get_iter_at_pixel (priv->layout,
7064 target = gtk_drag_dest_find_target (widget, context,
7065 gtk_drag_dest_get_target_list (widget));
7067 if (target == GDK_NONE)
7069 /* can't accept any of the offered targets */
7071 else if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
7073 gtk_text_iter_compare (&newplace, &start) >= 0 &&
7074 gtk_text_iter_compare (&newplace, &end) <= 0)
7076 /* We're inside the selection. */
7080 if (gtk_text_iter_can_insert (&newplace, priv->editable))
7082 GtkWidget *source_widget;
7084 suggested_action = gdk_drag_context_get_suggested_action (context);
7086 source_widget = gtk_drag_get_source_widget (context);
7088 if (source_widget == widget)
7090 /* Default to MOVE, unless the user has
7091 * pressed ctrl or alt to affect available actions
7093 if ((gdk_drag_context_get_actions (context) & GDK_ACTION_MOVE) != 0)
7094 suggested_action = GDK_ACTION_MOVE;
7099 /* Can't drop here. */
7103 if (suggested_action != 0)
7105 gtk_text_mark_set_visible (priv->dnd_mark,
7106 priv->cursor_visible);
7108 gdk_drag_status (context, suggested_action, time);
7112 gdk_drag_status (context, 0, time);
7113 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7116 priv->dnd_device = gdk_drag_context_get_device (context);
7118 if (!priv->scroll_timeout)
7119 priv->scroll_timeout =
7120 gdk_threads_add_timeout (100, drag_scan_timeout, text_view);
7122 /* TRUE return means don't propagate the drag motion to parent
7123 * widgets that may also be drop sites.
7129 gtk_text_view_drag_drop (GtkWidget *widget,
7130 GdkDragContext *context,
7135 GtkTextView *text_view;
7136 GtkTextViewPrivate *priv;
7137 GtkTextIter drop_point;
7138 GdkAtom target = GDK_NONE;
7140 text_view = GTK_TEXT_VIEW (widget);
7141 priv = text_view->priv;
7143 if (priv->scroll_timeout != 0)
7144 g_source_remove (priv->scroll_timeout);
7146 priv->scroll_timeout = 0;
7148 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7150 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
7154 if (gtk_text_iter_can_insert (&drop_point, priv->editable))
7155 target = gtk_drag_dest_find_target (widget, context, NULL);
7157 if (target != GDK_NONE)
7158 gtk_drag_get_data (widget, context, target, time);
7160 gtk_drag_finish (context, FALSE, FALSE, time);
7166 insert_text_data (GtkTextView *text_view,
7167 GtkTextIter *drop_point,
7168 GtkSelectionData *selection_data)
7172 str = gtk_selection_data_get_text (selection_data);
7176 if (!gtk_text_buffer_insert_interactive (get_buffer (text_view),
7177 drop_point, (gchar *) str, -1,
7178 text_view->priv->editable))
7180 gtk_widget_error_bell (GTK_WIDGET (text_view));
7188 gtk_text_view_drag_data_received (GtkWidget *widget,
7189 GdkDragContext *context,
7192 GtkSelectionData *selection_data,
7196 GtkTextIter drop_point;
7197 GtkTextView *text_view;
7198 GtkTextViewPrivate *priv;
7199 gboolean success = FALSE;
7200 GtkTextBuffer *buffer = NULL;
7202 text_view = GTK_TEXT_VIEW (widget);
7203 priv = text_view->priv;
7205 if (!priv->dnd_mark)
7208 buffer = get_buffer (text_view);
7210 gtk_text_buffer_get_iter_at_mark (buffer,
7214 if (!gtk_text_iter_can_insert (&drop_point, priv->editable))
7219 gtk_text_buffer_begin_user_action (buffer);
7221 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
7223 GtkTextBuffer *src_buffer = NULL;
7224 GtkTextIter start, end;
7225 gboolean copy_tags = TRUE;
7227 if (gtk_selection_data_get_length (selection_data) != sizeof (src_buffer))
7230 memcpy (&src_buffer, gtk_selection_data_get_data (selection_data), sizeof (src_buffer));
7232 if (src_buffer == NULL)
7235 g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer));
7237 if (gtk_text_buffer_get_tag_table (src_buffer) !=
7238 gtk_text_buffer_get_tag_table (buffer))
7240 /* try to find a suitable rich text target instead */
7244 GdkAtom target = GDK_NONE;
7248 atoms = gtk_text_buffer_get_deserialize_formats (buffer, &n_atoms);
7250 for (list = gdk_drag_context_list_targets (context); list; list = g_list_next (list))
7254 for (i = 0; i < n_atoms; i++)
7255 if (GUINT_TO_POINTER (atoms[i]) == list->data)
7264 if (target != GDK_NONE)
7266 gtk_drag_get_data (widget, context, target, time);
7267 gtk_text_buffer_end_user_action (buffer);
7272 if (gtk_text_buffer_get_selection_bounds (src_buffer,
7277 gtk_text_buffer_insert_range_interactive (buffer,
7286 str = gtk_text_iter_get_visible_text (&start, &end);
7287 gtk_text_buffer_insert_interactive (buffer,
7288 &drop_point, str, -1,
7294 else if (gtk_selection_data_get_length (selection_data) > 0 &&
7295 info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
7298 GError *error = NULL;
7300 retval = gtk_text_buffer_deserialize (buffer, buffer,
7301 gtk_selection_data_get_target (selection_data),
7303 (guint8 *) gtk_selection_data_get_data (selection_data),
7304 gtk_selection_data_get_length (selection_data),
7309 g_warning ("error pasting: %s\n", error->message);
7310 g_clear_error (&error);
7314 insert_text_data (text_view, &drop_point, selection_data);
7317 gtk_drag_finish (context, success,
7318 success && gdk_drag_context_get_selected_action (context) == GDK_ACTION_MOVE,
7323 gtk_text_buffer_get_iter_at_mark (buffer,
7326 gtk_text_buffer_place_cursor (buffer, &drop_point);
7328 gtk_text_buffer_end_user_action (buffer);
7333 * gtk_text_view_get_hadjustment:
7334 * @text_view: a #GtkTextView
7336 * Gets the horizontal-scrolling #GtkAdjustment.
7338 * Returns: (transfer none): pointer to the horizontal #GtkAdjustment
7342 * Deprecated: 3.0: Use gtk_scrollable_get_hadjustment()
7345 gtk_text_view_get_hadjustment (GtkTextView *text_view)
7347 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
7349 return text_view->priv->hadjustment;
7353 gtk_text_view_set_hadjustment (GtkTextView *text_view,
7354 GtkAdjustment *adjustment)
7356 GtkTextViewPrivate *priv = text_view->priv;
7358 if (adjustment && priv->hadjustment == adjustment)
7361 if (priv->hadjustment != NULL)
7363 g_signal_handlers_disconnect_by_func (priv->hadjustment,
7364 gtk_text_view_value_changed,
7366 g_object_unref (priv->hadjustment);
7369 if (adjustment == NULL)
7370 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
7372 g_signal_connect (adjustment, "value-changed",
7373 G_CALLBACK (gtk_text_view_value_changed), text_view);
7374 priv->hadjustment = g_object_ref_sink (adjustment);
7375 gtk_text_view_set_hadjustment_values (text_view);
7377 g_object_notify (G_OBJECT (text_view), "hadjustment");
7381 * gtk_text_view_get_vadjustment:
7382 * @text_view: a #GtkTextView
7384 * Gets the vertical-scrolling #GtkAdjustment.
7386 * Returns: (transfer none): pointer to the vertical #GtkAdjustment
7390 * Deprecated: 3.0: Use gtk_scrollable_get_vadjustment()
7393 gtk_text_view_get_vadjustment (GtkTextView *text_view)
7395 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
7397 return text_view->priv->vadjustment;
7401 gtk_text_view_set_vadjustment (GtkTextView *text_view,
7402 GtkAdjustment *adjustment)
7404 GtkTextViewPrivate *priv = text_view->priv;
7406 if (adjustment && priv->vadjustment == adjustment)
7409 if (priv->vadjustment != NULL)
7411 g_signal_handlers_disconnect_by_func (priv->vadjustment,
7412 gtk_text_view_value_changed,
7414 g_object_unref (priv->vadjustment);
7417 if (adjustment == NULL)
7418 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
7420 g_signal_connect (adjustment, "value-changed",
7421 G_CALLBACK (gtk_text_view_value_changed), text_view);
7422 priv->vadjustment = g_object_ref_sink (adjustment);
7423 gtk_text_view_set_vadjustment_values (text_view);
7425 g_object_notify (G_OBJECT (text_view), "vadjustment");
7429 gtk_text_view_set_hadjustment_values (GtkTextView *text_view)
7431 GtkTextViewPrivate *priv;
7437 priv = text_view->priv;
7439 screen_width = SCREEN_WIDTH (text_view);
7440 old_value = gtk_adjustment_get_value (priv->hadjustment);
7441 new_upper = MAX (screen_width, priv->width);
7443 g_object_set (priv->hadjustment,
7446 "page-size", (gdouble)screen_width,
7447 "step-increment", screen_width * 0.1,
7448 "page-increment", screen_width * 0.9,
7451 new_value = CLAMP (old_value, 0, new_upper - screen_width);
7452 if (new_value != old_value)
7453 gtk_adjustment_set_value (priv->hadjustment, new_value);
7457 gtk_text_view_set_vadjustment_values (GtkTextView *text_view)
7459 GtkTextViewPrivate *priv;
7460 GtkTextIter first_para;
7467 priv = text_view->priv;
7469 screen_height = SCREEN_HEIGHT (text_view);
7470 old_value = gtk_adjustment_get_value (priv->vadjustment);
7471 new_upper = MAX (screen_height, priv->height);
7473 g_object_set (priv->vadjustment,
7476 "page-size", (gdouble)screen_height,
7477 "step-increment", screen_height * 0.1,
7478 "page-increment", screen_height * 0.9,
7481 /* Now adjust the value of the adjustment to keep the cursor at the
7482 * same place in the buffer */
7483 gtk_text_view_ensure_layout (text_view);
7484 gtk_text_view_get_first_para_iter (text_view, &first_para);
7485 gtk_text_layout_get_line_yrange (priv->layout, &first_para, &y, NULL);
7487 y += priv->first_para_pixels;
7489 new_value = CLAMP (y, 0, new_upper - screen_height);
7490 if (new_value != old_value)
7491 gtk_adjustment_set_value (priv->vadjustment, new_value);
7495 /* FIXME this adjust_allocation is a big cut-and-paste from
7496 * GtkCList, needs to be some "official" way to do this
7506 /* The window to which widget->window is relative */
7507 #define ALLOCATION_WINDOW(widget) \
7508 (!gtk_widget_get_has_window (widget) ? \
7509 gtk_widget_get_window (widget) : \
7510 gdk_window_get_parent (gtk_widget_get_window (widget)))
7513 adjust_allocation_recurse (GtkWidget *widget,
7516 GtkAllocation allocation;
7517 ScrollData *scroll_data = data;
7519 /* Need to really size allocate instead of just poking
7520 * into widget->allocation if the widget is not realized.
7521 * FIXME someone figure out why this was.
7523 if (!gtk_widget_get_realized (widget))
7525 if (gtk_widget_get_visible (widget))
7527 GdkRectangle tmp_rectangle;
7529 tmp_rectangle = allocation;
7530 tmp_rectangle.x += scroll_data->dx;
7531 tmp_rectangle.y += scroll_data->dy;
7533 gtk_widget_size_allocate (widget, &tmp_rectangle);
7538 if (ALLOCATION_WINDOW (widget) == scroll_data->window)
7540 allocation.x += scroll_data->dx;
7541 allocation.y += scroll_data->dy;
7542 gtk_widget_set_allocation (widget, &allocation);
7544 if (GTK_IS_CONTAINER (widget))
7545 gtk_container_forall (GTK_CONTAINER (widget),
7546 adjust_allocation_recurse,
7553 adjust_allocation (GtkWidget *widget,
7557 ScrollData scroll_data;
7559 if (gtk_widget_get_realized (widget))
7560 scroll_data.window = ALLOCATION_WINDOW (widget);
7562 scroll_data.window = NULL;
7564 scroll_data.dx = dx;
7565 scroll_data.dy = dy;
7567 adjust_allocation_recurse (widget, &scroll_data);
7571 gtk_text_view_value_changed (GtkAdjustment *adjustment,
7572 GtkTextView *text_view)
7574 GtkTextViewPrivate *priv;
7580 priv = text_view->priv;
7582 /* Note that we oddly call this function with adjustment == NULL
7586 priv->onscreen_validated = FALSE;
7588 DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n",
7589 adjustment == priv->hadjustment ? "hadjustment" : adjustment == priv->vadjustment ? "vadjustment" : "none",
7590 adjustment ? gtk_adjustment_get_value (adjustment) : 0.0));
7592 if (adjustment == priv->hadjustment)
7594 dx = priv->xoffset - (gint)gtk_adjustment_get_value (adjustment);
7595 priv->xoffset = gtk_adjustment_get_value (adjustment);
7597 /* If the change is due to a size change we need
7598 * to invalidate the entire text window because there might be
7599 * right-aligned or centered text
7601 if (priv->width_changed)
7603 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7604 gdk_window_invalidate_rect (priv->text_window->bin_window, NULL, FALSE);
7606 priv->width_changed = FALSE;
7609 else if (adjustment == priv->vadjustment)
7611 dy = priv->yoffset - (gint)gtk_adjustment_get_value (adjustment);
7612 priv->yoffset = gtk_adjustment_get_value (adjustment);
7616 gtk_text_layout_get_line_at_y (priv->layout, &iter, gtk_adjustment_get_value (adjustment), &line_top);
7618 gtk_text_buffer_move_mark (get_buffer (text_view), priv->first_para_mark, &iter);
7620 priv->first_para_pixels = gtk_adjustment_get_value (adjustment) - line_top;
7624 if (dx != 0 || dy != 0)
7628 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7632 if (priv->left_window)
7633 text_window_scroll (priv->left_window, 0, dy);
7634 if (priv->right_window)
7635 text_window_scroll (priv->right_window, 0, dy);
7640 if (priv->top_window)
7641 text_window_scroll (priv->top_window, dx, 0);
7642 if (priv->bottom_window)
7643 text_window_scroll (priv->bottom_window, dx, 0);
7646 /* It looks nicer to scroll the main area last, because
7647 * it takes a while, and making the side areas update
7648 * afterward emphasizes the slowness of scrolling the
7651 text_window_scroll (priv->text_window, dx, dy);
7654 /* Children are now "moved" in the text window, poke
7655 * into widget->allocation for each child
7657 tmp_list = priv->children;
7658 while (tmp_list != NULL)
7660 GtkTextViewChild *child = tmp_list->data;
7663 adjust_allocation (child->widget, dx, dy);
7665 tmp_list = g_slist_next (tmp_list);
7669 /* This could result in invalidation, which would install the
7670 * first_validate_idle, which would validate onscreen;
7671 * but we're going to go ahead and validate here, so
7672 * first_validate_idle shouldn't have anything to do.
7674 gtk_text_view_update_layout_width (text_view);
7676 /* We also update the IM spot location here, since the IM context
7677 * might do something that leads to validation.
7679 gtk_text_view_update_im_spot_location (text_view);
7681 /* note that validation of onscreen could invoke this function
7682 * recursively, by scrolling to maintain first_para, or in response
7683 * to updating the layout width, however there is no problem with
7684 * that, or shouldn't be.
7686 gtk_text_view_validate_onscreen (text_view);
7688 /* process exposes */
7689 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7691 DV (g_print ("Processing updates (%s)\n", G_STRLOC));
7693 if (priv->left_window)
7694 gdk_window_process_updates (priv->left_window->bin_window, TRUE);
7696 if (priv->right_window)
7697 gdk_window_process_updates (priv->right_window->bin_window, TRUE);
7699 if (priv->top_window)
7700 gdk_window_process_updates (priv->top_window->bin_window, TRUE);
7702 if (priv->bottom_window)
7703 gdk_window_process_updates (priv->bottom_window->bin_window, TRUE);
7705 gdk_window_process_updates (priv->text_window->bin_window, TRUE);
7708 /* If this got installed, get rid of it, it's just a waste of time. */
7709 if (priv->first_validate_idle != 0)
7711 g_source_remove (priv->first_validate_idle);
7712 priv->first_validate_idle = 0;
7715 /* Finally we update the IM cursor location again, to ensure any
7716 * changes made by the validation are pushed through.
7718 gtk_text_view_update_im_spot_location (text_view);
7720 DV(g_print(">End scroll offset changed handler ("G_STRLOC")\n"));
7724 gtk_text_view_commit_handler (GtkIMContext *context,
7726 GtkTextView *text_view)
7728 gtk_text_view_commit_text (text_view, str);
7732 gtk_text_view_commit_text (GtkTextView *text_view,
7735 GtkTextViewPrivate *priv;
7736 gboolean had_selection;
7738 priv = text_view->priv;
7740 gtk_text_buffer_begin_user_action (get_buffer (text_view));
7742 had_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
7745 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
7748 if (!strcmp (str, "\n"))
7750 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
7753 gtk_widget_error_bell (GTK_WIDGET (text_view));
7758 if (!had_selection && priv->overwrite_mode)
7762 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
7764 gtk_text_buffer_get_insert (get_buffer (text_view)));
7765 if (!gtk_text_iter_ends_line (&insert))
7766 gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
7769 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
7772 gtk_widget_error_bell (GTK_WIDGET (text_view));
7776 gtk_text_buffer_end_user_action (get_buffer (text_view));
7778 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
7779 DV(g_print (G_STRLOC": scrolling onscreen\n"));
7780 gtk_text_view_scroll_mark_onscreen (text_view,
7781 gtk_text_buffer_get_insert (get_buffer (text_view)));
7785 gtk_text_view_preedit_changed_handler (GtkIMContext *context,
7786 GtkTextView *text_view)
7788 GtkTextViewPrivate *priv;
7790 PangoAttrList *attrs;
7794 priv = text_view->priv;
7796 gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter,
7797 gtk_text_buffer_get_insert (priv->buffer));
7799 /* Keypress events are passed to input method even if cursor position is
7800 * not editable; so beep here if it's multi-key input sequence, input
7801 * method will be reset in key-press-event handler.
7803 gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos);
7805 if (str && str[0] && !gtk_text_iter_can_insert (&iter, priv->editable))
7807 gtk_widget_error_bell (GTK_WIDGET (text_view));
7811 g_signal_emit (text_view, signals[PREEDIT_CHANGED], 0, str);
7814 gtk_text_layout_set_preedit_string (priv->layout, str, attrs, cursor_pos);
7815 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
7816 gtk_text_view_scroll_mark_onscreen (text_view,
7817 gtk_text_buffer_get_insert (get_buffer (text_view)));
7820 pango_attr_list_unref (attrs);
7825 gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
7826 GtkTextView *text_view)
7833 gtk_text_buffer_get_iter_at_mark (text_view->priv->buffer, &start,
7834 gtk_text_buffer_get_insert (text_view->priv->buffer));
7837 pos = gtk_text_iter_get_line_index (&start);
7838 gtk_text_iter_set_line_offset (&start, 0);
7839 gtk_text_iter_forward_to_line_end (&end);
7841 text = gtk_text_iter_get_slice (&start, &end);
7842 gtk_im_context_set_surrounding (context, text, -1, pos);
7849 gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
7852 GtkTextView *text_view)
7854 GtkTextViewPrivate *priv;
7858 priv = text_view->priv;
7860 gtk_text_buffer_get_iter_at_mark (priv->buffer, &start,
7861 gtk_text_buffer_get_insert (priv->buffer));
7864 gtk_text_iter_forward_chars (&start, offset);
7865 gtk_text_iter_forward_chars (&end, offset + n_chars);
7867 gtk_text_buffer_delete_interactive (priv->buffer, &start, &end,
7874 gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
7875 const GtkTextIter *location,
7879 GtkTextView *text_view = GTK_TEXT_VIEW (data);
7880 gboolean need_reset = FALSE;
7882 if (mark == gtk_text_buffer_get_insert (buffer))
7884 text_view->priv->virtual_cursor_x = -1;
7885 text_view->priv->virtual_cursor_y = -1;
7886 gtk_text_view_update_im_spot_location (text_view);
7889 else if (mark == gtk_text_buffer_get_selection_bound (buffer))
7895 gtk_text_view_reset_im_context (text_view);
7899 gtk_text_view_target_list_notify (GtkTextBuffer *buffer,
7900 const GParamSpec *pspec,
7903 GtkWidget *widget = GTK_WIDGET (data);
7904 GtkTargetList *view_list;
7905 GtkTargetList *buffer_list;
7908 view_list = gtk_drag_dest_get_target_list (widget);
7909 buffer_list = gtk_text_buffer_get_paste_target_list (buffer);
7912 gtk_target_list_ref (view_list);
7914 view_list = gtk_target_list_new (NULL, 0);
7916 list = view_list->list;
7919 GtkTargetPair *pair = list->data;
7921 list = g_list_next (list); /* get next element before removing */
7923 if (pair->info >= GTK_TEXT_BUFFER_TARGET_INFO_TEXT &&
7924 pair->info <= GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
7926 gtk_target_list_remove (view_list, pair->target);
7930 for (list = buffer_list->list; list; list = g_list_next (list))
7932 GtkTargetPair *pair = list->data;
7934 gtk_target_list_add (view_list, pair->target, pair->flags, pair->info);
7937 gtk_drag_dest_set_target_list (widget, view_list);
7938 gtk_target_list_unref (view_list);
7942 gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
7943 GtkTextIter *cursor,
7947 GtkTextViewPrivate *priv;
7951 priv = text_view->priv;
7956 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
7957 gtk_text_buffer_get_insert (get_buffer (text_view)));
7959 if ((x && priv->virtual_cursor_x == -1) ||
7960 (y && priv->virtual_cursor_y == -1))
7961 gtk_text_layout_get_cursor_locations (priv->layout, &insert, &pos, NULL);
7965 if (priv->virtual_cursor_x != -1)
7966 *x = priv->virtual_cursor_x;
7973 if (priv->virtual_cursor_x != -1)
7974 *y = priv->virtual_cursor_y;
7976 *y = pos.y + pos.height / 2;
7981 gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
7987 if (!text_view->priv->layout)
7990 if (x == -1 || y == -1)
7991 gtk_text_view_get_cursor_locations (text_view, NULL, &pos, NULL);
7993 text_view->priv->virtual_cursor_x = (x == -1) ? pos.x : x;
7994 text_view->priv->virtual_cursor_y = (y == -1) ? pos.y + pos.height / 2 : y;
7997 /* Quick hack of a popup menu
8000 activate_cb (GtkWidget *menuitem,
8001 GtkTextView *text_view)
8003 const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
8004 g_signal_emit_by_name (text_view, signal);
8008 append_action_signal (GtkTextView *text_view,
8010 const gchar *stock_id,
8011 const gchar *signal,
8014 GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
8016 g_object_set_data (G_OBJECT (menuitem), I_("gtk-signal"), (char *)signal);
8017 g_signal_connect (menuitem, "activate",
8018 G_CALLBACK (activate_cb), text_view);
8020 gtk_widget_set_sensitive (menuitem, sensitive);
8022 gtk_widget_show (menuitem);
8023 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
8027 gtk_text_view_select_all (GtkWidget *widget,
8030 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
8031 GtkTextBuffer *buffer;
8032 GtkTextIter start_iter, end_iter, insert;
8034 buffer = text_view->priv->buffer;
8037 gtk_text_buffer_get_bounds (buffer, &start_iter, &end_iter);
8038 gtk_text_buffer_select_range (buffer, &start_iter, &end_iter);
8042 gtk_text_buffer_get_iter_at_mark (buffer, &insert,
8043 gtk_text_buffer_get_insert (buffer));
8044 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &insert);
8049 select_all_cb (GtkWidget *menuitem,
8050 GtkTextView *text_view)
8052 gtk_text_view_select_all (GTK_WIDGET (text_view), TRUE);
8056 delete_cb (GtkTextView *text_view)
8058 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
8059 text_view->priv->editable);
8063 popup_menu_detach (GtkWidget *attach_widget,
8066 GTK_TEXT_VIEW (attach_widget)->priv->popup_menu = NULL;
8070 popup_position_func (GtkMenu *menu,
8076 GtkAllocation allocation;
8077 GtkTextView *text_view;
8079 GdkRectangle cursor_rect;
8080 GdkRectangle onscreen_rect;
8081 gint root_x, root_y;
8086 GdkRectangle monitor;
8088 text_view = GTK_TEXT_VIEW (user_data);
8089 widget = GTK_WIDGET (text_view);
8091 g_return_if_fail (gtk_widget_get_realized (widget));
8093 screen = gtk_widget_get_screen (widget);
8095 gdk_window_get_origin (gtk_widget_get_window (widget),
8098 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
8100 gtk_text_buffer_get_insert (get_buffer (text_view)));
8102 gtk_text_view_get_iter_location (text_view,
8106 gtk_text_view_get_visible_rect (text_view, &onscreen_rect);
8108 gtk_widget_get_preferred_size (text_view->priv->popup_menu,
8111 gtk_widget_get_allocation (widget, &allocation);
8113 /* can't use rectangle_intersect since cursor rect can have 0 width */
8114 if (cursor_rect.x >= onscreen_rect.x &&
8115 cursor_rect.x < onscreen_rect.x + onscreen_rect.width &&
8116 cursor_rect.y >= onscreen_rect.y &&
8117 cursor_rect.y < onscreen_rect.y + onscreen_rect.height)
8119 gtk_text_view_buffer_to_window_coords (text_view,
8120 GTK_TEXT_WINDOW_WIDGET,
8121 cursor_rect.x, cursor_rect.y,
8122 &cursor_rect.x, &cursor_rect.y);
8124 *x = root_x + cursor_rect.x + cursor_rect.width;
8125 *y = root_y + cursor_rect.y + cursor_rect.height;
8129 /* Just center the menu, since cursor is offscreen. */
8130 *x = root_x + (allocation.width / 2 - req.width / 2);
8131 *y = root_y + (allocation.height / 2 - req.height / 2);
8135 *x = CLAMP (*x, root_x, (root_x + allocation.width));
8136 *y = CLAMP (*y, root_y, (root_y + allocation.height));
8138 monitor_num = gdk_screen_get_monitor_at_point (screen, *x, *y);
8139 gtk_menu_set_monitor (menu, monitor_num);
8140 gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
8142 *x = CLAMP (*x, monitor.x, monitor.x + MAX (0, monitor.width - req.width));
8143 *y = CLAMP (*y, monitor.y, monitor.y + MAX (0, monitor.height - req.height));
8150 GtkTextView *text_view;
8156 range_contains_editable_text (const GtkTextIter *start,
8157 const GtkTextIter *end,
8158 gboolean default_editability)
8160 GtkTextIter iter = *start;
8162 while (gtk_text_iter_compare (&iter, end) < 0)
8164 if (gtk_text_iter_editable (&iter, default_editability))
8167 gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
8174 unichar_chosen_func (const char *text,
8177 GtkTextView *text_view = GTK_TEXT_VIEW (data);
8179 gtk_text_view_commit_text (text_view, text);
8183 popup_targets_received (GtkClipboard *clipboard,
8184 GtkSelectionData *data,
8187 PopupInfo *info = user_data;
8188 GtkTextView *text_view;
8189 GtkTextViewPrivate *priv;
8191 text_view = info->text_view;
8192 priv = text_view->priv;
8194 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
8196 /* We implicitely rely here on the fact that if we are pasting ourself, we'll
8197 * have text targets as well as the private GTK_TEXT_BUFFER_CONTENTS target.
8199 gboolean clipboard_contains_text;
8200 GtkWidget *menuitem;
8202 gboolean have_selection;
8203 gboolean can_insert;
8205 GtkTextIter sel_start, sel_end;
8206 gboolean show_input_method_menu;
8207 gboolean show_unicode_menu;
8209 clipboard_contains_text = gtk_selection_data_targets_include_text (data);
8211 if (priv->popup_menu)
8212 gtk_widget_destroy (priv->popup_menu);
8214 priv->popup_menu = gtk_menu_new ();
8216 gtk_menu_attach_to_widget (GTK_MENU (priv->popup_menu),
8217 GTK_WIDGET (text_view),
8220 have_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
8221 &sel_start, &sel_end);
8223 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
8225 gtk_text_buffer_get_insert (get_buffer (text_view)));
8227 can_insert = gtk_text_iter_can_insert (&iter, priv->editable);
8229 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_CUT, "cut-clipboard",
8231 range_contains_editable_text (&sel_start, &sel_end,
8233 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_COPY, "copy-clipboard",
8235 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_PASTE, "paste-clipboard",
8236 can_insert && clipboard_contains_text);
8238 menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_DELETE, NULL);
8239 gtk_widget_set_sensitive (menuitem,
8241 range_contains_editable_text (&sel_start, &sel_end,
8243 g_signal_connect_swapped (menuitem, "activate",
8244 G_CALLBACK (delete_cb), text_view);
8245 gtk_widget_show (menuitem);
8246 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8248 menuitem = gtk_separator_menu_item_new ();
8249 gtk_widget_show (menuitem);
8250 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8252 menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_SELECT_ALL, NULL);
8253 g_signal_connect (menuitem, "activate",
8254 G_CALLBACK (select_all_cb), text_view);
8255 gtk_widget_show (menuitem);
8256 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8258 g_object_get (gtk_widget_get_settings (GTK_WIDGET (text_view)),
8259 "gtk-show-input-method-menu", &show_input_method_menu,
8260 "gtk-show-unicode-menu", &show_unicode_menu,
8263 if (show_input_method_menu || show_unicode_menu)
8265 menuitem = gtk_separator_menu_item_new ();
8266 gtk_widget_show (menuitem);
8267 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8270 if (show_input_method_menu)
8272 menuitem = gtk_menu_item_new_with_mnemonic (_("Input _Methods"));
8273 gtk_widget_show (menuitem);
8274 gtk_widget_set_sensitive (menuitem, can_insert);
8276 submenu = gtk_menu_new ();
8277 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
8278 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8280 gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (priv->im_context),
8281 GTK_MENU_SHELL (submenu));
8284 if (show_unicode_menu)
8286 menuitem = gtk_menu_item_new_with_mnemonic (_("_Insert Unicode Control Character"));
8287 gtk_widget_show (menuitem);
8288 gtk_widget_set_sensitive (menuitem, can_insert);
8290 submenu = gtk_menu_new ();
8291 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
8292 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8294 _gtk_text_util_append_special_char_menuitems (GTK_MENU_SHELL (submenu),
8295 unichar_chosen_func,
8299 g_signal_emit (text_view,
8300 signals[POPULATE_POPUP],
8305 gtk_menu_popup (GTK_MENU (priv->popup_menu), NULL, NULL,
8307 info->button, info->time);
8310 gtk_menu_popup (GTK_MENU (priv->popup_menu), NULL, NULL,
8311 popup_position_func, text_view,
8312 0, gtk_get_current_event_time ());
8313 gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->popup_menu), FALSE);
8317 g_object_unref (text_view);
8322 gtk_text_view_do_popup (GtkTextView *text_view,
8323 GdkEventButton *event)
8325 PopupInfo *info = g_new (PopupInfo, 1);
8327 /* In order to know what entries we should make sensitive, we
8328 * ask for the current targets of the clipboard, and when
8329 * we get them, then we actually pop up the menu.
8331 info->text_view = g_object_ref (text_view);
8335 info->button = event->button;
8336 info->time = event->time;
8341 info->time = gtk_get_current_event_time ();
8344 gtk_clipboard_request_contents (gtk_widget_get_clipboard (GTK_WIDGET (text_view),
8345 GDK_SELECTION_CLIPBOARD),
8346 gdk_atom_intern_static_string ("TARGETS"),
8347 popup_targets_received,
8352 gtk_text_view_popup_menu (GtkWidget *widget)
8354 gtk_text_view_do_popup (GTK_TEXT_VIEW (widget), NULL);
8358 /* Child GdkWindows */
8361 static GtkTextWindow*
8362 text_window_new (GtkTextWindowType type,
8365 gint height_request)
8369 win = g_new (GtkTextWindow, 1);
8372 win->widget = widget;
8374 win->bin_window = NULL;
8375 win->requisition.width = width_request;
8376 win->requisition.height = height_request;
8377 win->allocation.width = width_request;
8378 win->allocation.height = height_request;
8379 win->allocation.x = 0;
8380 win->allocation.y = 0;
8386 text_window_free (GtkTextWindow *win)
8389 text_window_unrealize (win);
8395 text_window_realize (GtkTextWindow *win,
8398 GtkStyleContext *context;
8399 GtkStateFlags state;
8401 GdkWindowAttr attributes;
8402 gint attributes_mask;
8406 attributes.window_type = GDK_WINDOW_CHILD;
8407 attributes.x = win->allocation.x;
8408 attributes.y = win->allocation.y;
8409 attributes.width = win->allocation.width;
8410 attributes.height = win->allocation.height;
8411 attributes.wclass = GDK_INPUT_OUTPUT;
8412 attributes.visual = gtk_widget_get_visual (win->widget);
8413 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
8415 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
8417 window = gtk_widget_get_window (widget);
8419 win->window = gdk_window_new (window,
8420 &attributes, attributes_mask);
8422 gdk_window_show (win->window);
8423 gdk_window_set_user_data (win->window, win->widget);
8424 gdk_window_lower (win->window);
8428 attributes.width = win->allocation.width;
8429 attributes.height = win->allocation.height;
8430 attributes.event_mask = (GDK_EXPOSURE_MASK |
8432 GDK_KEY_PRESS_MASK |
8433 GDK_BUTTON_PRESS_MASK |
8434 GDK_BUTTON_RELEASE_MASK |
8435 GDK_POINTER_MOTION_MASK |
8436 GDK_POINTER_MOTION_HINT_MASK |
8437 gtk_widget_get_events (win->widget));
8439 win->bin_window = gdk_window_new (win->window,
8443 gdk_window_show (win->bin_window);
8444 gdk_window_set_user_data (win->bin_window, win->widget);
8446 context = gtk_widget_get_style_context (widget);
8447 state = gtk_widget_get_state_flags (widget);
8449 if (win->type == GTK_TEXT_WINDOW_TEXT)
8451 if (gtk_widget_is_sensitive (widget))
8454 cursor = gdk_cursor_new_for_display (gdk_window_get_display (window),
8456 gdk_window_set_cursor (win->bin_window, cursor);
8457 g_object_unref (cursor);
8460 gtk_im_context_set_client_window (GTK_TEXT_VIEW (widget)->priv->im_context,
8463 gtk_style_context_save (context);
8464 gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
8466 gtk_style_context_get_background_color (context, state, &color);
8467 gdk_window_set_background_rgba (win->bin_window, &color);
8469 gtk_style_context_restore (context);
8473 gtk_style_context_get_background_color (context, state, &color);
8474 gdk_window_set_background_rgba (win->bin_window, &color);
8477 g_object_set_qdata (G_OBJECT (win->window),
8478 g_quark_from_static_string ("gtk-text-view-text-window"),
8481 g_object_set_qdata (G_OBJECT (win->bin_window),
8482 g_quark_from_static_string ("gtk-text-view-text-window"),
8487 text_window_unrealize (GtkTextWindow *win)
8489 if (win->type == GTK_TEXT_WINDOW_TEXT)
8491 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->priv->im_context,
8495 gdk_window_set_user_data (win->window, NULL);
8496 gdk_window_set_user_data (win->bin_window, NULL);
8497 gdk_window_destroy (win->bin_window);
8498 gdk_window_destroy (win->window);
8500 win->bin_window = NULL;
8504 text_window_size_allocate (GtkTextWindow *win,
8507 win->allocation = *rect;
8511 gdk_window_move_resize (win->window,
8513 rect->width, rect->height);
8515 gdk_window_resize (win->bin_window,
8516 rect->width, rect->height);
8521 text_window_scroll (GtkTextWindow *win,
8525 if (dx != 0 || dy != 0)
8527 gdk_window_scroll (win->bin_window, dx, dy);
8532 text_window_invalidate_rect (GtkTextWindow *win,
8535 GdkRectangle window_rect;
8537 gtk_text_view_buffer_to_window_coords (GTK_TEXT_VIEW (win->widget),
8544 window_rect.width = rect->width;
8545 window_rect.height = rect->height;
8547 /* Adjust the rect as appropriate */
8551 case GTK_TEXT_WINDOW_TEXT:
8554 case GTK_TEXT_WINDOW_LEFT:
8555 case GTK_TEXT_WINDOW_RIGHT:
8557 window_rect.width = win->allocation.width;
8560 case GTK_TEXT_WINDOW_TOP:
8561 case GTK_TEXT_WINDOW_BOTTOM:
8563 window_rect.height = win->allocation.height;
8567 g_warning ("%s: bug!", G_STRFUNC);
8572 gdk_window_invalidate_rect (win->bin_window, &window_rect, FALSE);
8576 cairo_t *cr = gdk_cairo_create (win->bin_window);
8577 gdk_cairo_rectangle (cr, &window_rect);
8578 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* red */
8586 text_window_invalidate_cursors (GtkTextWindow *win)
8588 GtkTextView *text_view;
8589 GtkTextViewPrivate *priv;
8591 GdkRectangle strong;
8593 gboolean draw_arrow;
8594 gfloat cursor_aspect_ratio;
8598 text_view = GTK_TEXT_VIEW (win->widget);
8599 priv = text_view->priv;
8601 gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter,
8602 gtk_text_buffer_get_insert (priv->buffer));
8604 if (_gtk_text_layout_get_block_cursor (priv->layout, &strong))
8606 text_window_invalidate_rect (win, &strong);
8610 gtk_text_layout_get_cursor_locations (priv->layout, &iter,
8613 /* cursor width calculation as in gtkstyle.c:draw_insertion_cursor(),
8614 * ignoring the text direction be exposing both sides of the cursor
8617 draw_arrow = (strong.x != weak.x || strong.y != weak.y);
8619 gtk_widget_style_get (win->widget,
8620 "cursor-aspect-ratio", &cursor_aspect_ratio,
8623 stem_width = strong.height * cursor_aspect_ratio + 1;
8624 arrow_width = stem_width + 1;
8626 strong.width = stem_width;
8628 /* round up to the next even number */
8632 strong.x -= stem_width / 2;
8633 strong.width += stem_width;
8637 strong.x -= arrow_width;
8638 strong.width += arrow_width * 2;
8641 text_window_invalidate_rect (win, &strong);
8643 if (draw_arrow) /* == have weak */
8645 stem_width = weak.height * cursor_aspect_ratio + 1;
8646 arrow_width = stem_width + 1;
8648 weak.width = stem_width;
8650 /* round up to the next even number */
8654 weak.x -= stem_width / 2;
8655 weak.width += stem_width;
8657 weak.x -= arrow_width;
8658 weak.width += arrow_width * 2;
8660 text_window_invalidate_rect (win, &weak);
8665 text_window_get_width (GtkTextWindow *win)
8667 return win->allocation.width;
8671 text_window_get_height (GtkTextWindow *win)
8673 return win->allocation.height;
8680 * gtk_text_view_get_window:
8681 * @text_view: a #GtkTextView
8682 * @win: window to get
8684 * Retrieves the #GdkWindow corresponding to an area of the text view;
8685 * possible windows include the overall widget window, child windows
8686 * on the left, right, top, bottom, and the window that displays the
8687 * text buffer. Windows are %NULL and nonexistent if their width or
8688 * height is 0, and are nonexistent before the widget has been
8691 * Return value: (transfer none): a #GdkWindow, or %NULL
8694 gtk_text_view_get_window (GtkTextView *text_view,
8695 GtkTextWindowType win)
8697 GtkTextViewPrivate *priv = text_view->priv;
8699 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
8703 case GTK_TEXT_WINDOW_WIDGET:
8704 return gtk_widget_get_window (GTK_WIDGET (text_view));
8707 case GTK_TEXT_WINDOW_TEXT:
8708 return priv->text_window->bin_window;
8711 case GTK_TEXT_WINDOW_LEFT:
8712 if (priv->left_window)
8713 return priv->left_window->bin_window;
8718 case GTK_TEXT_WINDOW_RIGHT:
8719 if (priv->right_window)
8720 return priv->right_window->bin_window;
8725 case GTK_TEXT_WINDOW_TOP:
8726 if (priv->top_window)
8727 return priv->top_window->bin_window;
8732 case GTK_TEXT_WINDOW_BOTTOM:
8733 if (priv->bottom_window)
8734 return priv->bottom_window->bin_window;
8739 case GTK_TEXT_WINDOW_PRIVATE:
8740 g_warning ("%s: You can't get GTK_TEXT_WINDOW_PRIVATE, it has \"PRIVATE\" in the name because it is private.", G_STRFUNC);
8745 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
8750 * gtk_text_view_get_window_type:
8751 * @text_view: a #GtkTextView
8752 * @window: a window type
8754 * Usually used to find out which window an event corresponds to.
8755 * If you connect to an event signal on @text_view, this function
8756 * should be called on <literal>event->window</literal> to
8757 * see which window it was.
8759 * Return value: the window type.
8762 gtk_text_view_get_window_type (GtkTextView *text_view,
8767 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
8768 g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
8770 if (window == gtk_widget_get_window (GTK_WIDGET (text_view)))
8771 return GTK_TEXT_WINDOW_WIDGET;
8773 win = g_object_get_qdata (G_OBJECT (window),
8774 g_quark_try_string ("gtk-text-view-text-window"));
8780 return GTK_TEXT_WINDOW_PRIVATE;
8785 buffer_to_widget (GtkTextView *text_view,
8791 GtkTextViewPrivate *priv = text_view->priv;
8795 *window_x = buffer_x - priv->xoffset;
8796 *window_x += priv->text_window->allocation.x;
8801 *window_y = buffer_y - priv->yoffset;
8802 *window_y += priv->text_window->allocation.y;
8807 widget_to_text_window (GtkTextWindow *win,
8814 *window_x = widget_x - win->allocation.x;
8817 *window_y = widget_y - win->allocation.y;
8821 buffer_to_text_window (GtkTextView *text_view,
8830 g_warning ("Attempt to convert text buffer coordinates to coordinates "
8831 "for a nonexistent or private child window of GtkTextView");
8835 buffer_to_widget (text_view,
8837 window_x, window_y);
8839 widget_to_text_window (win,
8840 window_x ? *window_x : 0,
8841 window_y ? *window_y : 0,
8847 * gtk_text_view_buffer_to_window_coords:
8848 * @text_view: a #GtkTextView
8849 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
8850 * @buffer_x: buffer x coordinate
8851 * @buffer_y: buffer y coordinate
8852 * @window_x: (out) (allow-none): window x coordinate return location or %NULL
8853 * @window_y: (out) (allow-none): window y coordinate return location or %NULL
8855 * Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window
8856 * @win, and stores the result in (@window_x, @window_y).
8858 * Note that you can't convert coordinates for a nonexisting window (see
8859 * gtk_text_view_set_border_window_size()).
8862 gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
8863 GtkTextWindowType win,
8869 GtkTextViewPrivate *priv = text_view->priv;
8871 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
8875 case GTK_TEXT_WINDOW_WIDGET:
8876 buffer_to_widget (text_view,
8878 window_x, window_y);
8881 case GTK_TEXT_WINDOW_TEXT:
8883 *window_x = buffer_x - priv->xoffset;
8885 *window_y = buffer_y - priv->yoffset;
8888 case GTK_TEXT_WINDOW_LEFT:
8889 buffer_to_text_window (text_view,
8892 window_x, window_y);
8895 case GTK_TEXT_WINDOW_RIGHT:
8896 buffer_to_text_window (text_view,
8899 window_x, window_y);
8902 case GTK_TEXT_WINDOW_TOP:
8903 buffer_to_text_window (text_view,
8906 window_x, window_y);
8909 case GTK_TEXT_WINDOW_BOTTOM:
8910 buffer_to_text_window (text_view,
8911 priv->bottom_window,
8913 window_x, window_y);
8916 case GTK_TEXT_WINDOW_PRIVATE:
8917 g_warning ("%s: can't get coords for private windows", G_STRFUNC);
8921 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
8927 widget_to_buffer (GtkTextView *text_view,
8933 GtkTextViewPrivate *priv = text_view->priv;
8937 *buffer_x = widget_x + priv->xoffset;
8938 *buffer_x -= priv->text_window->allocation.x;
8943 *buffer_y = widget_y + priv->yoffset;
8944 *buffer_y -= priv->text_window->allocation.y;
8949 text_window_to_widget (GtkTextWindow *win,
8956 *widget_x = window_x + win->allocation.x;
8959 *widget_y = window_y + win->allocation.y;
8963 text_window_to_buffer (GtkTextView *text_view,
8972 g_warning ("Attempt to convert GtkTextView buffer coordinates into "
8973 "coordinates for a nonexistent child window.");
8977 text_window_to_widget (win,
8983 widget_to_buffer (text_view,
8984 buffer_x ? *buffer_x : 0,
8985 buffer_y ? *buffer_y : 0,
8991 * gtk_text_view_window_to_buffer_coords:
8992 * @text_view: a #GtkTextView
8993 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
8994 * @window_x: window x coordinate
8995 * @window_y: window y coordinate
8996 * @buffer_x: (out) (allow-none): buffer x coordinate return location or %NULL
8997 * @buffer_y: (out) (allow-none): buffer y coordinate return location or %NULL
8999 * Converts coordinates on the window identified by @win to buffer
9000 * coordinates, storing the result in (@buffer_x,@buffer_y).
9002 * Note that you can't convert coordinates for a nonexisting window (see
9003 * gtk_text_view_set_border_window_size()).
9006 gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
9007 GtkTextWindowType win,
9013 GtkTextViewPrivate *priv = text_view->priv;
9015 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9019 case GTK_TEXT_WINDOW_WIDGET:
9020 widget_to_buffer (text_view,
9022 buffer_x, buffer_y);
9025 case GTK_TEXT_WINDOW_TEXT:
9027 *buffer_x = window_x + priv->xoffset;
9029 *buffer_y = window_y + priv->yoffset;
9032 case GTK_TEXT_WINDOW_LEFT:
9033 text_window_to_buffer (text_view,
9036 buffer_x, buffer_y);
9039 case GTK_TEXT_WINDOW_RIGHT:
9040 text_window_to_buffer (text_view,
9043 buffer_x, buffer_y);
9046 case GTK_TEXT_WINDOW_TOP:
9047 text_window_to_buffer (text_view,
9050 buffer_x, buffer_y);
9053 case GTK_TEXT_WINDOW_BOTTOM:
9054 text_window_to_buffer (text_view,
9055 priv->bottom_window,
9057 buffer_x, buffer_y);
9060 case GTK_TEXT_WINDOW_PRIVATE:
9061 g_warning ("%s: can't get coords for private windows", G_STRFUNC);
9065 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
9071 set_window_width (GtkTextView *text_view,
9073 GtkTextWindowType type,
9074 GtkTextWindow **winp)
9080 text_window_free (*winp);
9082 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9089 *winp = text_window_new (type,
9090 GTK_WIDGET (text_view),
9092 /* if the widget is already realized we need to realize the child manually */
9093 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9094 text_window_realize (*winp, GTK_WIDGET (text_view));
9098 if ((*winp)->requisition.width == width)
9101 (*winp)->requisition.width = width;
9104 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9110 set_window_height (GtkTextView *text_view,
9112 GtkTextWindowType type,
9113 GtkTextWindow **winp)
9119 text_window_free (*winp);
9121 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9128 *winp = text_window_new (type,
9129 GTK_WIDGET (text_view),
9132 /* if the widget is already realized we need to realize the child manually */
9133 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9134 text_window_realize (*winp, GTK_WIDGET (text_view));
9138 if ((*winp)->requisition.height == height)
9141 (*winp)->requisition.height = height;
9144 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9149 * gtk_text_view_set_border_window_size:
9150 * @text_view: a #GtkTextView
9151 * @type: window to affect
9152 * @size: width or height of the window
9154 * Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT,
9155 * or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM.
9156 * Automatically destroys the corresponding window if the size is set
9157 * to 0, and creates the window if the size is set to non-zero. This
9158 * function can only be used for the "border windows," it doesn't work
9159 * with #GTK_TEXT_WINDOW_WIDGET, #GTK_TEXT_WINDOW_TEXT, or
9160 * #GTK_TEXT_WINDOW_PRIVATE.
9163 gtk_text_view_set_border_window_size (GtkTextView *text_view,
9164 GtkTextWindowType type,
9167 GtkTextViewPrivate *priv = text_view->priv;
9169 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9170 g_return_if_fail (size >= 0);
9174 case GTK_TEXT_WINDOW_LEFT:
9175 set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT,
9176 &priv->left_window);
9179 case GTK_TEXT_WINDOW_RIGHT:
9180 set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT,
9181 &priv->right_window);
9184 case GTK_TEXT_WINDOW_TOP:
9185 set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP,
9189 case GTK_TEXT_WINDOW_BOTTOM:
9190 set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM,
9191 &priv->bottom_window);
9195 g_warning ("Can only set size of left/right/top/bottom border windows with gtk_text_view_set_border_window_size()");
9201 * gtk_text_view_get_border_window_size:
9202 * @text_view: a #GtkTextView
9203 * @type: window to return size from
9205 * Gets the width of the specified border window. See
9206 * gtk_text_view_set_border_window_size().
9208 * Return value: width of window
9211 gtk_text_view_get_border_window_size (GtkTextView *text_view,
9212 GtkTextWindowType type)
9214 GtkTextViewPrivate *priv = text_view->priv;
9216 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
9220 case GTK_TEXT_WINDOW_LEFT:
9221 if (priv->left_window)
9222 return priv->left_window->requisition.width;
9225 case GTK_TEXT_WINDOW_RIGHT:
9226 if (priv->right_window)
9227 return priv->right_window->requisition.width;
9230 case GTK_TEXT_WINDOW_TOP:
9231 if (priv->top_window)
9232 return priv->top_window->requisition.height;
9235 case GTK_TEXT_WINDOW_BOTTOM:
9236 if (priv->bottom_window)
9237 return priv->bottom_window->requisition.height;
9241 g_warning ("Can only get size of left/right/top/bottom border windows with gtk_text_view_get_border_window_size()");
9252 static GtkTextViewChild*
9253 text_view_child_new_anchored (GtkWidget *child,
9254 GtkTextChildAnchor *anchor,
9255 GtkTextLayout *layout)
9257 GtkTextViewChild *vc;
9259 vc = g_new (GtkTextViewChild, 1);
9261 vc->type = GTK_TEXT_WINDOW_PRIVATE;
9263 vc->anchor = anchor;
9265 vc->from_top_of_line = 0;
9266 vc->from_left_of_buffer = 0;
9268 g_object_ref (vc->widget);
9269 g_object_ref (vc->anchor);
9271 g_object_set_data (G_OBJECT (child),
9272 I_("gtk-text-view-child"),
9275 gtk_text_child_anchor_register_child (anchor, child, layout);
9280 static GtkTextViewChild*
9281 text_view_child_new_window (GtkWidget *child,
9282 GtkTextWindowType type,
9286 GtkTextViewChild *vc;
9288 vc = g_new (GtkTextViewChild, 1);
9293 vc->from_top_of_line = 0;
9294 vc->from_left_of_buffer = 0;
9296 g_object_ref (vc->widget);
9302 g_object_set_data (G_OBJECT (child),
9303 I_("gtk-text-view-child"),
9310 text_view_child_free (GtkTextViewChild *child)
9312 g_object_set_data (G_OBJECT (child->widget),
9313 I_("gtk-text-view-child"), NULL);
9317 gtk_text_child_anchor_unregister_child (child->anchor,
9319 g_object_unref (child->anchor);
9322 g_object_unref (child->widget);
9328 text_view_child_set_parent_window (GtkTextView *text_view,
9329 GtkTextViewChild *vc)
9332 gtk_widget_set_parent_window (vc->widget,
9333 text_view->priv->text_window->bin_window);
9337 window = gtk_text_view_get_window (text_view,
9339 gtk_widget_set_parent_window (vc->widget, window);
9344 add_child (GtkTextView *text_view,
9345 GtkTextViewChild *vc)
9347 text_view->priv->children = g_slist_prepend (text_view->priv->children,
9350 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9351 text_view_child_set_parent_window (text_view, vc);
9353 gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view));
9357 * gtk_text_view_add_child_at_anchor:
9358 * @text_view: a #GtkTextView
9359 * @child: a #GtkWidget
9360 * @anchor: a #GtkTextChildAnchor in the #GtkTextBuffer for @text_view
9362 * Adds a child widget in the text buffer, at the given @anchor.
9365 gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
9367 GtkTextChildAnchor *anchor)
9369 GtkTextViewChild *vc;
9371 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9372 g_return_if_fail (GTK_IS_WIDGET (child));
9373 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
9374 g_return_if_fail (gtk_widget_get_parent (child) == NULL);
9376 gtk_text_view_ensure_layout (text_view);
9378 vc = text_view_child_new_anchored (child, anchor,
9379 text_view->priv->layout);
9381 add_child (text_view, vc);
9383 g_assert (vc->widget == child);
9384 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9388 * gtk_text_view_add_child_in_window:
9389 * @text_view: a #GtkTextView
9390 * @child: a #GtkWidget
9391 * @which_window: which window the child should appear in
9392 * @xpos: X position of child in window coordinates
9393 * @ypos: Y position of child in window coordinates
9395 * Adds a child at fixed coordinates in one of the text widget's
9398 * The window must have nonzero size (see
9399 * gtk_text_view_set_border_window_size()). Note that the child
9400 * coordinates are given relative to the #GdkWindow in question, and
9401 * that these coordinates have no sane relationship to scrolling. When
9402 * placing a child in #GTK_TEXT_WINDOW_WIDGET, scrolling is
9403 * irrelevant, the child floats above all scrollable areas. But when
9404 * placing a child in one of the scrollable windows (border windows or
9405 * text window), you'll need to compute the child's correct position
9406 * in buffer coordinates any time scrolling occurs or buffer changes
9407 * occur, and then call gtk_text_view_move_child() to update the
9411 gtk_text_view_add_child_in_window (GtkTextView *text_view,
9413 GtkTextWindowType which_window,
9417 GtkTextViewChild *vc;
9419 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9420 g_return_if_fail (GTK_IS_WIDGET (child));
9421 g_return_if_fail (gtk_widget_get_parent (child) == NULL);
9423 vc = text_view_child_new_window (child, which_window,
9426 add_child (text_view, vc);
9428 g_assert (vc->widget == child);
9429 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9433 * gtk_text_view_move_child:
9434 * @text_view: a #GtkTextView
9435 * @child: child widget already added to the text view
9436 * @xpos: new X position in window coordinates
9437 * @ypos: new Y position in window coordinates
9439 * Updates the position of a child, as for gtk_text_view_add_child_in_window().
9442 gtk_text_view_move_child (GtkTextView *text_view,
9447 GtkTextViewChild *vc;
9449 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9450 g_return_if_fail (GTK_IS_WIDGET (child));
9451 g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9453 vc = g_object_get_data (G_OBJECT (child),
9454 "gtk-text-view-child");
9456 g_assert (vc != NULL);
9458 if (vc->x == xpos &&
9465 if (gtk_widget_get_visible (child) &&
9466 gtk_widget_get_visible (GTK_WIDGET (text_view)))
9467 gtk_widget_queue_resize (child);
9471 /* Iterator operations */
9474 * gtk_text_view_forward_display_line:
9475 * @text_view: a #GtkTextView
9476 * @iter: a #GtkTextIter
9478 * Moves the given @iter forward by one display (wrapped) line.
9479 * A display line is different from a paragraph. Paragraphs are
9480 * separated by newlines or other paragraph separator characters.
9481 * Display lines are created by line-wrapping a paragraph. If
9482 * wrapping is turned off, display lines and paragraphs will be the
9483 * same. Display lines are divided differently for each view, since
9484 * they depend on the view's width; paragraphs are the same in all
9485 * views, since they depend on the contents of the #GtkTextBuffer.
9487 * Return value: %TRUE if @iter was moved and is not on the end iterator
9490 gtk_text_view_forward_display_line (GtkTextView *text_view,
9493 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9494 g_return_val_if_fail (iter != NULL, FALSE);
9496 gtk_text_view_ensure_layout (text_view);
9498 return gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, iter);
9502 * gtk_text_view_backward_display_line:
9503 * @text_view: a #GtkTextView
9504 * @iter: a #GtkTextIter
9506 * Moves the given @iter backward by one display (wrapped) line.
9507 * A display line is different from a paragraph. Paragraphs are
9508 * separated by newlines or other paragraph separator characters.
9509 * Display lines are created by line-wrapping a paragraph. If
9510 * wrapping is turned off, display lines and paragraphs will be the
9511 * same. Display lines are divided differently for each view, since
9512 * they depend on the view's width; paragraphs are the same in all
9513 * views, since they depend on the contents of the #GtkTextBuffer.
9515 * Return value: %TRUE if @iter was moved and is not on the end iterator
9518 gtk_text_view_backward_display_line (GtkTextView *text_view,
9521 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9522 g_return_val_if_fail (iter != NULL, FALSE);
9524 gtk_text_view_ensure_layout (text_view);
9526 return gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, iter);
9530 * gtk_text_view_forward_display_line_end:
9531 * @text_view: a #GtkTextView
9532 * @iter: a #GtkTextIter
9534 * Moves the given @iter forward to the next display line end.
9535 * A display line is different from a paragraph. Paragraphs are
9536 * separated by newlines or other paragraph separator characters.
9537 * Display lines are created by line-wrapping a paragraph. If
9538 * wrapping is turned off, display lines and paragraphs will be the
9539 * same. Display lines are divided differently for each view, since
9540 * they depend on the view's width; paragraphs are the same in all
9541 * views, since they depend on the contents of the #GtkTextBuffer.
9543 * Return value: %TRUE if @iter was moved and is not on the end iterator
9546 gtk_text_view_forward_display_line_end (GtkTextView *text_view,
9549 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9550 g_return_val_if_fail (iter != NULL, FALSE);
9552 gtk_text_view_ensure_layout (text_view);
9554 return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, 1);
9558 * gtk_text_view_backward_display_line_start:
9559 * @text_view: a #GtkTextView
9560 * @iter: a #GtkTextIter
9562 * Moves the given @iter backward to the next display line start.
9563 * A display line is different from a paragraph. Paragraphs are
9564 * separated by newlines or other paragraph separator characters.
9565 * Display lines are created by line-wrapping a paragraph. If
9566 * wrapping is turned off, display lines and paragraphs will be the
9567 * same. Display lines are divided differently for each view, since
9568 * they depend on the view's width; paragraphs are the same in all
9569 * views, since they depend on the contents of the #GtkTextBuffer.
9571 * Return value: %TRUE if @iter was moved and is not on the end iterator
9574 gtk_text_view_backward_display_line_start (GtkTextView *text_view,
9577 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9578 g_return_val_if_fail (iter != NULL, FALSE);
9580 gtk_text_view_ensure_layout (text_view);
9582 return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, -1);
9586 * gtk_text_view_starts_display_line:
9587 * @text_view: a #GtkTextView
9588 * @iter: a #GtkTextIter
9590 * Determines whether @iter is at the start of a display line.
9591 * See gtk_text_view_forward_display_line() for an explanation of
9592 * display lines vs. paragraphs.
9594 * Return value: %TRUE if @iter begins a wrapped line
9597 gtk_text_view_starts_display_line (GtkTextView *text_view,
9598 const GtkTextIter *iter)
9600 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9601 g_return_val_if_fail (iter != NULL, FALSE);
9603 gtk_text_view_ensure_layout (text_view);
9605 return gtk_text_layout_iter_starts_line (text_view->priv->layout, iter);
9609 * gtk_text_view_move_visually:
9610 * @text_view: a #GtkTextView
9611 * @iter: a #GtkTextIter
9612 * @count: number of characters to move (negative moves left,
9613 * positive moves right)
9615 * Move the iterator a given number of characters visually, treating
9616 * it as the strong cursor position. If @count is positive, then the
9617 * new strong cursor position will be @count positions to the right of
9618 * the old cursor position. If @count is negative then the new strong
9619 * cursor position will be @count positions to the left of the old
9622 * In the presence of bi-directional text, the correspondence
9623 * between logical and visual order will depend on the direction
9624 * of the current run, and there may be jumps when the cursor
9625 * is moved off of the end of a run.
9627 * Return value: %TRUE if @iter moved and is not on the end iterator
9630 gtk_text_view_move_visually (GtkTextView *text_view,
9634 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9635 g_return_val_if_fail (iter != NULL, FALSE);
9637 gtk_text_view_ensure_layout (text_view);
9639 return gtk_text_layout_move_iter_visually (text_view->priv->layout, iter, count);