1 /* GTK - The GIMP Toolkit
2 * gtktextview.c Copyright (C) 2000 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
30 #define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API
31 #include "gtkbindings.h"
33 #include "gtkimagemenuitem.h"
36 #include "gtkmarshalers.h"
38 #include "gtkmenuitem.h"
39 #include "gtkseparatormenuitem.h"
40 #include "gtksettings.h"
42 #include "gtktextdisplay.h"
43 #include "gtktextview.h"
44 #include "gtkimmulticontext.h"
45 #include "gdk/gdkkeysyms.h"
46 #include "gtkprivate.h"
47 #include "gtksizegroup.h" /* FIXME http://bugzilla.gnome.org/show_bug.cgi?id=72258 */
48 #include "gtktextutil.h"
49 #include "gtkwindow.h"
51 /* How scrolling, validation, exposes, etc. work.
53 * The expose_event handler has the invariant that the onscreen lines
54 * have been validated.
56 * There are two ways that onscreen lines can become invalid. The first
57 * is to change which lines are onscreen. This happens when the value
58 * of a scroll adjustment changes. So the code path begins in
59 * gtk_text_view_value_changed() and goes like this:
60 * - gdk_window_scroll() to reflect the new adjustment value
61 * - validate the lines that were moved onscreen
62 * - gdk_window_process_updates() to handle the exposes immediately
64 * The second way is that you get the "invalidated" signal from the layout,
65 * indicating that lines have become invalid. This code path begins in
66 * invalidated_handler() and goes like this:
67 * - install high-priority idle which does the rest of the steps
68 * - if a scroll is pending from scroll_to_mark(), do the scroll,
69 * jumping to the gtk_text_view_value_changed() code path
70 * - otherwise, validate the onscreen lines
71 * - DO NOT process updates
73 * In both cases, validating the onscreen lines can trigger a scroll
74 * due to maintaining the first_para on the top of the screen.
75 * If validation triggers a scroll, we jump to the top of the code path
76 * for value_changed, and bail out of the current code path.
78 * Also, in size_allocate, if we invalidate some lines from changing
79 * the layout width, we need to go ahead and run the high-priority idle,
80 * because GTK sends exposes right after doing the size allocates without
81 * returning to the main loop. This is also why the high-priority idle
82 * is at a higher priority than resizing.
87 #define DEBUG_VALIDATION_AND_SCROLLING
90 #ifdef DEBUG_VALIDATION_AND_SCROLLING
96 #define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->text_window)
97 #define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->text_window)
99 #define SPACE_FOR_CURSOR 1
101 struct _GtkTextPendingScroll
104 gdouble within_margin;
112 SET_SCROLL_ADJUSTMENTS,
132 PROP_PIXELS_ABOVE_LINES,
133 PROP_PIXELS_BELOW_LINES,
134 PROP_PIXELS_INSIDE_WRAP,
149 static void gtk_text_view_init (GtkTextView *text_view);
150 static void gtk_text_view_class_init (GtkTextViewClass *klass);
151 static void gtk_text_view_destroy (GtkObject *object);
152 static void gtk_text_view_finalize (GObject *object);
153 static void gtk_text_view_set_property (GObject *object,
157 static void gtk_text_view_get_property (GObject *object,
161 static void gtk_text_view_size_request (GtkWidget *widget,
162 GtkRequisition *requisition);
163 static void gtk_text_view_size_allocate (GtkWidget *widget,
164 GtkAllocation *allocation);
165 static void gtk_text_view_realize (GtkWidget *widget);
166 static void gtk_text_view_unrealize (GtkWidget *widget);
167 static void gtk_text_view_style_set (GtkWidget *widget,
168 GtkStyle *previous_style);
169 static void gtk_text_view_direction_changed (GtkWidget *widget,
170 GtkTextDirection previous_direction);
171 static void gtk_text_view_grab_notify (GtkWidget *widget,
172 gboolean was_grabbed);
173 static void gtk_text_view_state_changed (GtkWidget *widget,
174 GtkStateType previous_state);
176 static gint gtk_text_view_event (GtkWidget *widget,
178 static gint gtk_text_view_key_press_event (GtkWidget *widget,
180 static gint gtk_text_view_key_release_event (GtkWidget *widget,
182 static gint gtk_text_view_button_press_event (GtkWidget *widget,
183 GdkEventButton *event);
184 static gint gtk_text_view_button_release_event (GtkWidget *widget,
185 GdkEventButton *event);
186 static gint gtk_text_view_focus_in_event (GtkWidget *widget,
187 GdkEventFocus *event);
188 static gint gtk_text_view_focus_out_event (GtkWidget *widget,
189 GdkEventFocus *event);
190 static gint gtk_text_view_motion_event (GtkWidget *widget,
191 GdkEventMotion *event);
192 static gint gtk_text_view_expose_event (GtkWidget *widget,
193 GdkEventExpose *expose);
194 static void gtk_text_view_draw_focus (GtkWidget *widget);
195 static gboolean gtk_text_view_focus (GtkWidget *widget,
196 GtkDirectionType direction);
197 static void gtk_text_view_select_all (GtkWidget *widget,
201 /* Source side drag signals */
202 static void gtk_text_view_drag_begin (GtkWidget *widget,
203 GdkDragContext *context);
204 static void gtk_text_view_drag_end (GtkWidget *widget,
205 GdkDragContext *context);
206 static void gtk_text_view_drag_data_get (GtkWidget *widget,
207 GdkDragContext *context,
208 GtkSelectionData *selection_data,
211 static void gtk_text_view_drag_data_delete (GtkWidget *widget,
212 GdkDragContext *context);
214 /* Target side drag signals */
215 static void gtk_text_view_drag_leave (GtkWidget *widget,
216 GdkDragContext *context,
218 static gboolean gtk_text_view_drag_motion (GtkWidget *widget,
219 GdkDragContext *context,
223 static gboolean gtk_text_view_drag_drop (GtkWidget *widget,
224 GdkDragContext *context,
228 static void gtk_text_view_drag_data_received (GtkWidget *widget,
229 GdkDragContext *context,
232 GtkSelectionData *selection_data,
236 static void gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
238 GtkAdjustment *vadj);
239 static gboolean gtk_text_view_popup_menu (GtkWidget *widget);
241 static void gtk_text_view_move_cursor (GtkTextView *text_view,
242 GtkMovementStep step,
244 gboolean extend_selection);
245 static void gtk_text_view_page_horizontally (GtkTextView *text_view,
247 gboolean extend_selection);
248 static void gtk_text_view_move_viewport (GtkTextView *text_view,
251 static void gtk_text_view_set_anchor (GtkTextView *text_view);
252 static void gtk_text_view_scroll_pages (GtkTextView *text_view,
254 gboolean extend_selection);
255 static void gtk_text_view_scroll_hpages (GtkTextView *text_view,
257 gboolean extend_selection);
258 static void gtk_text_view_insert_at_cursor (GtkTextView *text_view,
260 static void gtk_text_view_delete_from_cursor (GtkTextView *text_view,
263 static void gtk_text_view_cut_clipboard (GtkTextView *text_view);
264 static void gtk_text_view_copy_clipboard (GtkTextView *text_view);
265 static void gtk_text_view_paste_clipboard (GtkTextView *text_view);
266 static void gtk_text_view_toggle_overwrite (GtkTextView *text_view);
267 static void gtk_text_view_move_focus (GtkTextView *text_view,
268 GtkDirectionType direction_type);
269 static void gtk_text_view_unselect (GtkTextView *text_view);
271 static void gtk_text_view_validate_onscreen (GtkTextView *text_view);
272 static void gtk_text_view_get_first_para_iter (GtkTextView *text_view,
274 static void gtk_text_view_update_layout_width (GtkTextView *text_view);
275 static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
276 GtkTextAttributes *values,
278 static void gtk_text_view_ensure_layout (GtkTextView *text_view);
279 static void gtk_text_view_destroy_layout (GtkTextView *text_view);
280 static void gtk_text_view_check_keymap_direction (GtkTextView *text_view);
281 static void gtk_text_view_reset_im_context (GtkTextView *text_view);
282 static void gtk_text_view_start_selection_drag (GtkTextView *text_view,
283 const GtkTextIter *iter,
284 GdkEventButton *event);
285 static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view,
286 GdkEventButton *event);
287 static void gtk_text_view_start_selection_dnd (GtkTextView *text_view,
288 const GtkTextIter *iter,
289 GdkEventMotion *event);
290 static void gtk_text_view_check_cursor_blink (GtkTextView *text_view);
291 static void gtk_text_view_pend_cursor_blink (GtkTextView *text_view);
292 static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view);
294 static void gtk_text_view_value_changed (GtkAdjustment *adj,
296 static void gtk_text_view_commit_handler (GtkIMContext *context,
298 GtkTextView *text_view);
299 static void gtk_text_view_commit_text (GtkTextView *text_view,
301 static void gtk_text_view_preedit_changed_handler (GtkIMContext *context,
302 GtkTextView *text_view);
303 static gboolean gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
304 GtkTextView *text_view);
305 static gboolean gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
308 GtkTextView *text_view);
310 static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
311 const GtkTextIter *location,
314 static void gtk_text_view_get_cursor_location (GtkTextView *text_view,
316 static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
319 static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
323 static GtkAdjustment* get_hadjustment (GtkTextView *text_view);
324 static GtkAdjustment* get_vadjustment (GtkTextView *text_view);
326 static void gtk_text_view_do_popup (GtkTextView *text_view,
327 GdkEventButton *event);
329 static void gtk_text_view_queue_scroll (GtkTextView *text_view,
331 gdouble within_margin,
336 static gboolean gtk_text_view_flush_scroll (GtkTextView *text_view);
337 static void gtk_text_view_update_adjustments (GtkTextView *text_view);
338 static void gtk_text_view_invalidate (GtkTextView *text_view);
339 static void gtk_text_view_flush_first_validate (GtkTextView *text_view);
341 static void gtk_text_view_update_im_spot_location (GtkTextView *text_view);
343 /* Container methods */
344 static void gtk_text_view_add (GtkContainer *container,
346 static void gtk_text_view_remove (GtkContainer *container,
348 static void gtk_text_view_forall (GtkContainer *container,
349 gboolean include_internals,
350 GtkCallback callback,
351 gpointer callback_data);
353 /* FIXME probably need the focus methods. */
355 typedef struct _GtkTextViewChild GtkTextViewChild;
357 struct _GtkTextViewChild
361 GtkTextChildAnchor *anchor;
363 gint from_top_of_line;
364 gint from_left_of_buffer;
366 /* These are ignored if anchor != NULL */
367 GtkTextWindowType type;
372 static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child,
373 GtkTextChildAnchor *anchor,
374 GtkTextLayout *layout);
375 static GtkTextViewChild* text_view_child_new_window (GtkWidget *child,
376 GtkTextWindowType type,
379 static void text_view_child_free (GtkTextViewChild *child);
380 static void text_view_child_set_parent_window (GtkTextView *text_view,
381 GtkTextViewChild *child);
383 struct _GtkTextWindow
385 GtkTextWindowType type;
388 GdkWindow *bin_window;
389 GtkRequisition requisition;
390 GdkRectangle allocation;
393 static GtkTextWindow *text_window_new (GtkTextWindowType type,
396 gint height_request);
397 static void text_window_free (GtkTextWindow *win);
398 static void text_window_realize (GtkTextWindow *win,
400 static void text_window_unrealize (GtkTextWindow *win);
401 static void text_window_size_allocate (GtkTextWindow *win,
403 static void text_window_scroll (GtkTextWindow *win,
406 static void text_window_invalidate_rect (GtkTextWindow *win,
409 static gint text_window_get_width (GtkTextWindow *win);
410 static gint text_window_get_height (GtkTextWindow *win);
417 TARGET_COMPOUND_TEXT,
419 TARGET_TEXT_BUFFER_CONTENTS
422 static const GtkTargetEntry target_table[] = {
423 { "GTK_TEXT_BUFFER_CONTENTS", GTK_TARGET_SAME_APP,
424 TARGET_TEXT_BUFFER_CONTENTS },
425 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
426 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
427 { "TEXT", 0, TARGET_TEXT },
428 { "STRING", 0, TARGET_STRING }
431 static GtkContainerClass *parent_class = NULL;
432 static guint signals[LAST_SIGNAL] = { 0 };
435 gtk_text_view_get_type (void)
437 static GType our_type = 0;
441 static const GTypeInfo our_info =
443 sizeof (GtkTextViewClass),
444 NULL, /* base_init */
445 NULL, /* base_finalize */
446 (GClassInitFunc) gtk_text_view_class_init,
447 NULL, /* class_finalize */
448 NULL, /* class_data */
449 sizeof (GtkTextView),
451 (GInstanceInitFunc) gtk_text_view_init,
454 our_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkTextView",
462 add_move_binding (GtkBindingSet *binding_set,
465 GtkMovementStep step,
468 g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
470 gtk_binding_entry_add_signal (binding_set, keyval, modmask,
474 G_TYPE_BOOLEAN, FALSE);
476 /* Selection-extending version */
477 gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
481 G_TYPE_BOOLEAN, TRUE);
485 gtk_text_view_class_init (GtkTextViewClass *klass)
487 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
488 GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
489 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
490 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
491 GtkBindingSet *binding_set;
493 parent_class = g_type_class_peek_parent (klass);
495 /* Default handlers and virtual methods
497 gobject_class->set_property = gtk_text_view_set_property;
498 gobject_class->get_property = gtk_text_view_get_property;
500 object_class->destroy = gtk_text_view_destroy;
501 gobject_class->finalize = gtk_text_view_finalize;
503 widget_class->realize = gtk_text_view_realize;
504 widget_class->unrealize = gtk_text_view_unrealize;
505 widget_class->style_set = gtk_text_view_style_set;
506 widget_class->direction_changed = gtk_text_view_direction_changed;
507 widget_class->grab_notify = gtk_text_view_grab_notify;
508 widget_class->state_changed = gtk_text_view_state_changed;
509 widget_class->size_request = gtk_text_view_size_request;
510 widget_class->size_allocate = gtk_text_view_size_allocate;
511 widget_class->event = gtk_text_view_event;
512 widget_class->key_press_event = gtk_text_view_key_press_event;
513 widget_class->key_release_event = gtk_text_view_key_release_event;
514 widget_class->button_press_event = gtk_text_view_button_press_event;
515 widget_class->button_release_event = gtk_text_view_button_release_event;
516 widget_class->focus_in_event = gtk_text_view_focus_in_event;
517 widget_class->focus_out_event = gtk_text_view_focus_out_event;
518 widget_class->motion_notify_event = gtk_text_view_motion_event;
519 widget_class->expose_event = gtk_text_view_expose_event;
520 widget_class->focus = gtk_text_view_focus;
522 widget_class->drag_begin = gtk_text_view_drag_begin;
523 widget_class->drag_end = gtk_text_view_drag_end;
524 widget_class->drag_data_get = gtk_text_view_drag_data_get;
525 widget_class->drag_data_delete = gtk_text_view_drag_data_delete;
527 widget_class->drag_leave = gtk_text_view_drag_leave;
528 widget_class->drag_motion = gtk_text_view_drag_motion;
529 widget_class->drag_drop = gtk_text_view_drag_drop;
530 widget_class->drag_data_received = gtk_text_view_drag_data_received;
532 widget_class->popup_menu = gtk_text_view_popup_menu;
534 container_class->add = gtk_text_view_add;
535 container_class->remove = gtk_text_view_remove;
536 container_class->forall = gtk_text_view_forall;
538 klass->move_cursor = gtk_text_view_move_cursor;
539 klass->page_horizontally = gtk_text_view_page_horizontally;
540 klass->set_anchor = gtk_text_view_set_anchor;
541 klass->insert_at_cursor = gtk_text_view_insert_at_cursor;
542 klass->delete_from_cursor = gtk_text_view_delete_from_cursor;
543 klass->cut_clipboard = gtk_text_view_cut_clipboard;
544 klass->copy_clipboard = gtk_text_view_copy_clipboard;
545 klass->paste_clipboard = gtk_text_view_paste_clipboard;
546 klass->toggle_overwrite = gtk_text_view_toggle_overwrite;
547 klass->move_focus = gtk_text_view_move_focus;
548 klass->set_scroll_adjustments = gtk_text_view_set_scroll_adjustments;
554 g_object_class_install_property (gobject_class,
555 PROP_PIXELS_ABOVE_LINES,
556 g_param_spec_int ("pixels_above_lines",
557 P_("Pixels Above Lines"),
558 P_("Pixels of blank space above paragraphs"),
564 g_object_class_install_property (gobject_class,
565 PROP_PIXELS_BELOW_LINES,
566 g_param_spec_int ("pixels_below_lines",
567 P_("Pixels Below Lines"),
568 P_("Pixels of blank space below paragraphs"),
574 g_object_class_install_property (gobject_class,
575 PROP_PIXELS_INSIDE_WRAP,
576 g_param_spec_int ("pixels_inside_wrap",
577 P_("Pixels Inside Wrap"),
578 P_("Pixels of blank space between wrapped lines in a paragraph"),
584 g_object_class_install_property (gobject_class,
586 g_param_spec_boolean ("editable",
588 P_("Whether the text can be modified by the user"),
592 g_object_class_install_property (gobject_class,
594 g_param_spec_enum ("wrap_mode",
596 P_("Whether to wrap lines never, at word boundaries, or at character boundaries"),
601 g_object_class_install_property (gobject_class,
603 g_param_spec_enum ("justification",
605 P_("Left, right, or center justification"),
606 GTK_TYPE_JUSTIFICATION,
610 g_object_class_install_property (gobject_class,
612 g_param_spec_int ("left_margin",
614 P_("Width of the left margin in pixels"),
620 g_object_class_install_property (gobject_class,
622 g_param_spec_int ("right_margin",
624 P_("Width of the right margin in pixels"),
630 g_object_class_install_property (gobject_class,
632 g_param_spec_int ("indent",
634 P_("Amount to indent the paragraph, in pixels"),
640 g_object_class_install_property (gobject_class,
642 g_param_spec_boxed ("tabs",
644 P_("Custom tabs for this text"),
645 PANGO_TYPE_TAB_ARRAY,
648 g_object_class_install_property (gobject_class,
650 g_param_spec_boolean ("cursor_visible",
651 P_("Cursor Visible"),
652 P_("If the insertion cursor is shown"),
656 g_object_class_install_property (gobject_class,
658 g_param_spec_object ("buffer",
660 P_("The buffer which is displayed"),
661 GTK_TYPE_TEXT_BUFFER,
664 g_object_class_install_property (gobject_class,
666 g_param_spec_boolean ("overwrite",
667 P_("Overwrite mode"),
668 P_("Whether entered text overwrites existing contents"),
672 g_object_class_install_property (gobject_class,
674 g_param_spec_boolean ("accepts_tab",
676 P_("Whether Tab will result in a tab character being entered"),
683 gtk_widget_class_install_style_property (widget_class,
684 g_param_spec_boxed ("error-underline-color",
685 P_("Error underline color"),
686 P_("Color with which to draw error-indication underlines"),
695 * GtkTextView::move-cursor:
696 * @widget: the object which received the signal
697 * @step: the granularity of the move, as a #GtkMovementStep
698 * @count: the number of @step units to move
699 * @extend_selection: %TRUE if the move should extend the selection
701 * The ::move-cursor signal is a keybinding signal which gets emitted
702 * when the user initiates a cursor movement.
704 * Applications should not connect to it, but may emit it with
705 * g_signal_emit_by_name() if they need to control scrolling
709 signals[MOVE_CURSOR] =
710 g_signal_new ("move_cursor",
711 G_OBJECT_CLASS_TYPE (gobject_class),
712 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
713 G_STRUCT_OFFSET (GtkTextViewClass, move_cursor),
715 _gtk_marshal_VOID__ENUM_INT_BOOLEAN,
717 GTK_TYPE_MOVEMENT_STEP,
721 signals[PAGE_HORIZONTALLY] =
722 g_signal_new ("page_horizontally",
723 G_OBJECT_CLASS_TYPE (gobject_class),
724 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
725 G_STRUCT_OFFSET (GtkTextViewClass, page_horizontally),
727 _gtk_marshal_VOID__INT_BOOLEAN,
732 signals[MOVE_VIEWPORT] =
733 _gtk_binding_signal_new ("move_viewport",
734 G_OBJECT_CLASS_TYPE (gobject_class),
735 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
736 G_CALLBACK (gtk_text_view_move_viewport),
738 _gtk_marshal_VOID__ENUM_INT,
740 GTK_TYPE_SCROLL_STEP,
743 signals[SET_ANCHOR] =
744 g_signal_new ("set_anchor",
745 G_OBJECT_CLASS_TYPE (gobject_class),
746 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
747 G_STRUCT_OFFSET (GtkTextViewClass, set_anchor),
749 _gtk_marshal_VOID__VOID,
752 signals[INSERT_AT_CURSOR] =
753 g_signal_new ("insert_at_cursor",
754 G_OBJECT_CLASS_TYPE (gobject_class),
755 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
756 G_STRUCT_OFFSET (GtkTextViewClass, insert_at_cursor),
758 _gtk_marshal_VOID__STRING,
762 signals[DELETE_FROM_CURSOR] =
763 g_signal_new ("delete_from_cursor",
764 G_OBJECT_CLASS_TYPE (gobject_class),
765 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
766 G_STRUCT_OFFSET (GtkTextViewClass, delete_from_cursor),
768 _gtk_marshal_VOID__ENUM_INT,
770 GTK_TYPE_DELETE_TYPE,
773 signals[CUT_CLIPBOARD] =
774 g_signal_new ("cut_clipboard",
775 G_OBJECT_CLASS_TYPE (gobject_class),
776 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
777 G_STRUCT_OFFSET (GtkTextViewClass, cut_clipboard),
779 _gtk_marshal_VOID__VOID,
782 signals[COPY_CLIPBOARD] =
783 g_signal_new ("copy_clipboard",
784 G_OBJECT_CLASS_TYPE (gobject_class),
785 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
786 G_STRUCT_OFFSET (GtkTextViewClass, copy_clipboard),
788 _gtk_marshal_VOID__VOID,
791 signals[PASTE_CLIPBOARD] =
792 g_signal_new ("paste_clipboard",
793 G_OBJECT_CLASS_TYPE (gobject_class),
794 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
795 G_STRUCT_OFFSET (GtkTextViewClass, paste_clipboard),
797 _gtk_marshal_VOID__VOID,
800 signals[TOGGLE_OVERWRITE] =
801 g_signal_new ("toggle_overwrite",
802 G_OBJECT_CLASS_TYPE (gobject_class),
803 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
804 G_STRUCT_OFFSET (GtkTextViewClass, toggle_overwrite),
806 _gtk_marshal_VOID__VOID,
809 signals[MOVE_FOCUS] =
810 g_signal_new ("move_focus",
811 G_OBJECT_CLASS_TYPE (gobject_class),
812 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
813 G_STRUCT_OFFSET (GtkTextViewClass, move_focus),
815 _gtk_marshal_VOID__ENUM,
817 GTK_TYPE_DIRECTION_TYPE);
819 signals[SET_SCROLL_ADJUSTMENTS] =
820 g_signal_new ("set_scroll_adjustments",
821 G_OBJECT_CLASS_TYPE (gobject_class),
822 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
823 G_STRUCT_OFFSET (GtkTextViewClass, set_scroll_adjustments),
825 _gtk_marshal_VOID__OBJECT_OBJECT,
828 GTK_TYPE_ADJUSTMENT);
829 widget_class->set_scroll_adjustments_signal = signals[SET_SCROLL_ADJUSTMENTS];
831 signals[POPULATE_POPUP] =
832 g_signal_new ("populate_popup",
833 G_OBJECT_CLASS_TYPE (gobject_class),
835 G_STRUCT_OFFSET (GtkTextViewClass, populate_popup),
837 _gtk_marshal_VOID__OBJECT,
841 signals[SELECT_ALL] =
842 _gtk_binding_signal_new ("select_all",
843 G_OBJECT_CLASS_TYPE (object_class),
844 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
845 G_CALLBACK (gtk_text_view_select_all),
847 _gtk_marshal_VOID__BOOLEAN,
849 G_TYPE_BOOLEAN, TRUE);
856 binding_set = gtk_binding_set_by_class (klass);
858 /* Moving the insertion point */
859 add_move_binding (binding_set, GDK_Right, 0,
860 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
862 add_move_binding (binding_set, GDK_KP_Right, 0,
863 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
865 add_move_binding (binding_set, GDK_Left, 0,
866 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
868 add_move_binding (binding_set, GDK_KP_Left, 0,
869 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
871 add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
872 GTK_MOVEMENT_WORDS, 1);
874 add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
875 GTK_MOVEMENT_WORDS, 1);
877 add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
878 GTK_MOVEMENT_WORDS, -1);
880 add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
881 GTK_MOVEMENT_WORDS, 1);
883 add_move_binding (binding_set, GDK_Up, 0,
884 GTK_MOVEMENT_DISPLAY_LINES, -1);
886 add_move_binding (binding_set, GDK_KP_Up, 0,
887 GTK_MOVEMENT_DISPLAY_LINES, -1);
889 add_move_binding (binding_set, GDK_Down, 0,
890 GTK_MOVEMENT_DISPLAY_LINES, 1);
892 add_move_binding (binding_set, GDK_KP_Down, 0,
893 GTK_MOVEMENT_DISPLAY_LINES, 1);
895 add_move_binding (binding_set, GDK_Up, GDK_CONTROL_MASK,
896 GTK_MOVEMENT_PARAGRAPHS, -1);
898 add_move_binding (binding_set, GDK_KP_Up, GDK_CONTROL_MASK,
899 GTK_MOVEMENT_PARAGRAPHS, -1);
901 add_move_binding (binding_set, GDK_Down, GDK_CONTROL_MASK,
902 GTK_MOVEMENT_PARAGRAPHS, 1);
904 add_move_binding (binding_set, GDK_KP_Down, GDK_CONTROL_MASK,
905 GTK_MOVEMENT_PARAGRAPHS, 1);
907 add_move_binding (binding_set, GDK_Home, 0,
908 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
910 add_move_binding (binding_set, GDK_KP_Home, 0,
911 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
913 add_move_binding (binding_set, GDK_End, 0,
914 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
916 add_move_binding (binding_set, GDK_KP_End, 0,
917 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
919 add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
920 GTK_MOVEMENT_BUFFER_ENDS, -1);
922 add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
923 GTK_MOVEMENT_BUFFER_ENDS, -1);
925 add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
926 GTK_MOVEMENT_BUFFER_ENDS, 1);
928 add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
929 GTK_MOVEMENT_BUFFER_ENDS, 1);
931 add_move_binding (binding_set, GDK_Page_Up, 0,
932 GTK_MOVEMENT_PAGES, -1);
934 add_move_binding (binding_set, GDK_KP_Page_Up, 0,
935 GTK_MOVEMENT_PAGES, -1);
937 add_move_binding (binding_set, GDK_Page_Down, 0,
938 GTK_MOVEMENT_PAGES, 1);
940 add_move_binding (binding_set, GDK_KP_Page_Down, 0,
941 GTK_MOVEMENT_PAGES, 1);
943 add_move_binding (binding_set, GDK_Page_Up, GDK_CONTROL_MASK,
944 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
946 add_move_binding (binding_set, GDK_KP_Page_Up, GDK_CONTROL_MASK,
947 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
949 add_move_binding (binding_set, GDK_Page_Down, GDK_CONTROL_MASK,
950 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
952 add_move_binding (binding_set, GDK_KP_Page_Down, GDK_CONTROL_MASK,
953 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
956 gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
958 G_TYPE_BOOLEAN, TRUE);
960 gtk_binding_entry_add_signal (binding_set, GDK_slash, GDK_CONTROL_MASK,
962 G_TYPE_BOOLEAN, TRUE);
965 gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_CONTROL_MASK,
967 G_TYPE_BOOLEAN, FALSE);
970 gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0,
971 "delete_from_cursor", 2,
972 G_TYPE_ENUM, GTK_DELETE_CHARS,
975 gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, 0,
976 "delete_from_cursor", 2,
977 G_TYPE_ENUM, GTK_DELETE_CHARS,
980 gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0,
981 "delete_from_cursor", 2,
982 G_TYPE_ENUM, GTK_DELETE_CHARS,
985 /* Make this do the same as Backspace, to help with mis-typing */
986 gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_SHIFT_MASK,
987 "delete_from_cursor", 2,
988 G_TYPE_ENUM, GTK_DELETE_CHARS,
991 gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_CONTROL_MASK,
992 "delete_from_cursor", 2,
993 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
996 gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, GDK_CONTROL_MASK,
997 "delete_from_cursor", 2,
998 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1001 gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK,
1002 "delete_from_cursor", 2,
1003 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1006 /* Cut/copy/paste */
1008 gtk_binding_entry_add_signal (binding_set, GDK_x, GDK_CONTROL_MASK,
1009 "cut_clipboard", 0);
1010 gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
1011 "copy_clipboard", 0);
1012 gtk_binding_entry_add_signal (binding_set, GDK_v, GDK_CONTROL_MASK,
1013 "paste_clipboard", 0);
1015 gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_SHIFT_MASK,
1016 "cut_clipboard", 0);
1017 gtk_binding_entry_add_signal (binding_set, GDK_Insert, GDK_CONTROL_MASK,
1018 "copy_clipboard", 0);
1019 gtk_binding_entry_add_signal (binding_set, GDK_Insert, GDK_SHIFT_MASK,
1020 "paste_clipboard", 0);
1023 gtk_binding_entry_add_signal (binding_set, GDK_Insert, 0,
1024 "toggle_overwrite", 0);
1025 gtk_binding_entry_add_signal (binding_set, GDK_KP_Insert, 0,
1026 "toggle_overwrite", 0);
1028 /* Control-tab focus motion */
1029 gtk_binding_entry_add_signal (binding_set, GDK_Tab, GDK_CONTROL_MASK,
1031 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1032 gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, GDK_CONTROL_MASK,
1034 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1036 gtk_binding_entry_add_signal (binding_set, GDK_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1038 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1039 gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1041 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1045 gtk_text_view_init (GtkTextView *text_view)
1049 widget = GTK_WIDGET (text_view);
1051 GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
1053 /* Set up default style */
1054 text_view->wrap_mode = GTK_WRAP_NONE;
1055 text_view->pixels_above_lines = 0;
1056 text_view->pixels_below_lines = 0;
1057 text_view->pixels_inside_wrap = 0;
1058 text_view->justify = GTK_JUSTIFY_LEFT;
1059 text_view->left_margin = 0;
1060 text_view->right_margin = 0;
1061 text_view->indent = 0;
1062 text_view->tabs = NULL;
1063 text_view->editable = TRUE;
1065 gtk_drag_dest_set (widget,
1067 target_table, G_N_ELEMENTS (target_table),
1068 GDK_ACTION_COPY | GDK_ACTION_MOVE);
1070 text_view->virtual_cursor_x = -1;
1071 text_view->virtual_cursor_y = -1;
1073 /* This object is completely private. No external entity can gain a reference
1074 * to it; so we create it here and destroy it in finalize ().
1076 text_view->im_context = gtk_im_multicontext_new ();
1078 g_signal_connect (text_view->im_context, "commit",
1079 G_CALLBACK (gtk_text_view_commit_handler), text_view);
1080 g_signal_connect (text_view->im_context, "preedit_changed",
1081 G_CALLBACK (gtk_text_view_preedit_changed_handler), text_view);
1082 g_signal_connect (text_view->im_context, "retrieve_surrounding",
1083 G_CALLBACK (gtk_text_view_retrieve_surrounding_handler), text_view);
1084 g_signal_connect (text_view->im_context, "delete_surrounding",
1085 G_CALLBACK (gtk_text_view_delete_surrounding_handler), text_view);
1087 text_view->cursor_visible = TRUE;
1089 text_view->accepts_tab = TRUE;
1091 text_view->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT,
1094 text_view->drag_start_x = -1;
1095 text_view->drag_start_y = -1;
1097 text_view->pending_place_cursor_button = 0;
1099 /* We handle all our own redrawing */
1100 gtk_widget_set_redraw_on_allocate (widget, FALSE);
1104 * gtk_text_view_new:
1106 * Creates a new #GtkTextView. If you don't call gtk_text_view_set_buffer()
1107 * before using the text view, an empty default buffer will be created
1108 * for you. Get the buffer with gtk_text_view_get_buffer(). If you want
1109 * to specify your own buffer, consider gtk_text_view_new_with_buffer().
1111 * Return value: a new #GtkTextView
1114 gtk_text_view_new (void)
1116 return g_object_new (GTK_TYPE_TEXT_VIEW, NULL);
1120 * gtk_text_view_new_with_buffer:
1121 * @buffer: a #GtkTextBuffer
1123 * Creates a new #GtkTextView widget displaying the buffer
1124 * @buffer. One buffer can be shared among many widgets.
1125 * @buffer may be NULL to create a default buffer, in which case
1126 * this function is equivalent to gtk_text_view_new(). The
1127 * text view adds its own reference count to the buffer; it does not
1128 * take over an existing reference.
1130 * Return value: a new #GtkTextView.
1133 gtk_text_view_new_with_buffer (GtkTextBuffer *buffer)
1135 GtkTextView *text_view;
1137 text_view = (GtkTextView*)gtk_text_view_new ();
1139 gtk_text_view_set_buffer (text_view, buffer);
1141 return GTK_WIDGET (text_view);
1145 * gtk_text_view_set_buffer:
1146 * @text_view: a #GtkTextView
1147 * @buffer: a #GtkTextBuffer
1149 * Sets @buffer as the buffer being displayed by @text_view. The previous
1150 * buffer displayed by the text view is unreferenced, and a reference is
1151 * added to @buffer. If you owned a reference to @buffer before passing it
1152 * to this function, you must remove that reference yourself; #GtkTextView
1153 * will not "adopt" it.
1157 gtk_text_view_set_buffer (GtkTextView *text_view,
1158 GtkTextBuffer *buffer)
1160 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1161 g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer));
1163 if (text_view->buffer == buffer)
1166 if (text_view->buffer != NULL)
1168 /* Destroy all anchored children */
1172 copy = g_slist_copy (text_view->children);
1174 while (tmp_list != NULL)
1176 GtkTextViewChild *vc = tmp_list->data;
1180 gtk_widget_destroy (vc->widget);
1181 /* vc may now be invalid! */
1184 tmp_list = g_slist_next (tmp_list);
1187 g_slist_free (copy);
1189 g_signal_handlers_disconnect_by_func (text_view->buffer,
1190 gtk_text_view_mark_set_handler,
1192 g_object_unref (text_view->buffer);
1193 text_view->dnd_mark = NULL;
1195 if (GTK_WIDGET_REALIZED (text_view))
1197 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1198 GDK_SELECTION_PRIMARY);
1199 gtk_text_buffer_remove_selection_clipboard (text_view->buffer, clipboard);
1203 text_view->buffer = buffer;
1209 g_object_ref (buffer);
1211 if (text_view->layout)
1212 gtk_text_layout_set_buffer (text_view->layout, buffer);
1214 gtk_text_buffer_get_iter_at_offset (text_view->buffer, &start, 0);
1216 text_view->dnd_mark = gtk_text_buffer_create_mark (text_view->buffer,
1220 text_view->first_para_mark = gtk_text_buffer_create_mark (text_view->buffer,
1224 text_view->first_para_pixels = 0;
1226 g_signal_connect (text_view->buffer, "mark_set",
1227 G_CALLBACK (gtk_text_view_mark_set_handler), text_view);
1229 if (GTK_WIDGET_REALIZED (text_view))
1231 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1232 GDK_SELECTION_PRIMARY);
1233 gtk_text_buffer_add_selection_clipboard (text_view->buffer, clipboard);
1237 g_object_notify (G_OBJECT (text_view), "buffer");
1239 if (GTK_WIDGET_VISIBLE (text_view))
1240 gtk_widget_queue_draw (GTK_WIDGET (text_view));
1242 DV(g_print ("Invalidating due to set_buffer\n"));
1243 gtk_text_view_invalidate (text_view);
1246 static GtkTextBuffer*
1247 get_buffer (GtkTextView *text_view)
1249 if (text_view->buffer == NULL)
1252 b = gtk_text_buffer_new (NULL);
1253 gtk_text_view_set_buffer (text_view, b);
1257 return text_view->buffer;
1261 * gtk_text_view_get_buffer:
1262 * @text_view: a #GtkTextView
1264 * Returns the #GtkTextBuffer being displayed by this text view.
1265 * The reference count on the buffer is not incremented; the caller
1266 * of this function won't own a new reference.
1268 * Return value: a #GtkTextBuffer
1271 gtk_text_view_get_buffer (GtkTextView *text_view)
1273 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
1275 return get_buffer (text_view);
1279 * gtk_text_view_get_iter_at_location:
1280 * @text_view: a #GtkTextView
1281 * @iter: a #GtkTextIter
1282 * @x: x position, in buffer coordinates
1283 * @y: y position, in buffer coordinates
1285 * Retrieves the iterator at buffer coordinates @x and @y. Buffer
1286 * coordinates are coordinates for the entire buffer, not just the
1287 * currently-displayed portion. If you have coordinates from an
1288 * event, you have to convert those to buffer coordinates with
1289 * gtk_text_view_window_to_buffer_coords().
1293 gtk_text_view_get_iter_at_location (GtkTextView *text_view,
1298 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1299 g_return_if_fail (iter != NULL);
1301 gtk_text_view_ensure_layout (text_view);
1303 gtk_text_layout_get_iter_at_pixel (text_view->layout,
1310 * gtk_text_view_get_iter_location:
1311 * @text_view: a #GtkTextView
1312 * @iter: a #GtkTextIter
1313 * @location: bounds of the character at @iter
1315 * Gets a rectangle which roughly contains the character at @iter.
1316 * The rectangle position is in buffer coordinates; use
1317 * gtk_text_view_buffer_to_window_coords() to convert these
1318 * coordinates to coordinates for one of the windows in the text view.
1322 gtk_text_view_get_iter_location (GtkTextView *text_view,
1323 const GtkTextIter *iter,
1324 GdkRectangle *location)
1326 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1327 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1329 gtk_text_view_ensure_layout (text_view);
1331 gtk_text_layout_get_iter_location (text_view->layout, iter, location);
1335 * gtk_text_view_get_line_yrange:
1336 * @text_view: a #GtkTextView
1337 * @iter: a #GtkTextIter
1338 * @y: return location for a y coordinate
1339 * @height: return location for a height
1341 * Gets the y coordinate of the top of the line containing @iter,
1342 * and the height of the line. The coordinate is a buffer coordinate;
1343 * convert to window coordinates with gtk_text_view_buffer_to_window_coords().
1347 gtk_text_view_get_line_yrange (GtkTextView *text_view,
1348 const GtkTextIter *iter,
1352 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1353 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1355 gtk_text_view_ensure_layout (text_view);
1357 gtk_text_layout_get_line_yrange (text_view->layout,
1364 * gtk_text_view_get_line_at_y:
1365 * @text_view: a #GtkTextView
1366 * @target_iter: a #GtkTextIter
1367 * @y: a y coordinate
1368 * @line_top: return location for top coordinate of the line
1370 * Gets the #GtkTextIter at the start of the line containing
1371 * the coordinate @y. @y is in buffer coordinates, convert from
1372 * window coordinates with gtk_text_view_window_to_buffer_coords().
1373 * If non-%NULL, @line_top will be filled with the coordinate of the top
1377 gtk_text_view_get_line_at_y (GtkTextView *text_view,
1378 GtkTextIter *target_iter,
1382 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1384 gtk_text_view_ensure_layout (text_view);
1386 gtk_text_layout_get_line_at_y (text_view->layout,
1393 set_adjustment_clamped (GtkAdjustment *adj, gdouble val)
1395 DV (g_print (" Setting adj to raw value %g\n", val));
1397 /* We don't really want to clamp to upper; we want to clamp to
1398 upper - page_size which is the highest value the scrollbar
1399 will let us reach. */
1400 if (val > (adj->upper - adj->page_size))
1401 val = adj->upper - adj->page_size;
1403 if (val < adj->lower)
1406 if (val != adj->value)
1408 DV (g_print (" Setting adj to clamped value %g\n", val));
1409 gtk_adjustment_set_value (adj, val);
1417 * gtk_text_view_scroll_to_iter:
1418 * @text_view: a #GtkTextView
1419 * @iter: a #GtkTextIter
1420 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1421 * @use_align: whether to use alignment arguments (if %FALSE, just get the mark onscreen)
1422 * @xalign: horizontal alignment of mark within visible area.
1423 * @yalign: vertical alignment of mark within visible area
1425 * Scrolls @text_view so that @iter is on the screen in the position
1426 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1427 * left or top, 1.0 indicates right or bottom, 0.5 means center. If @use_align
1428 * is %FALSE, the text scrolls the minimal distance to get the mark onscreen,
1429 * possibly not scrolling at all. The effective screen for purposes
1430 * of this function is reduced by a margin of size @within_margin.
1431 * NOTE: This function uses the currently-computed height of the
1432 * lines in the text buffer. Note that line heights are computed
1433 * in an idle handler; so this function may not have the desired effect
1434 * if it's called before the height computations. To avoid oddness,
1435 * consider using gtk_text_view_scroll_to_mark() which saves a point
1436 * to be scrolled to after line validation.
1438 * Return value: %TRUE if scrolling occurred
1441 gtk_text_view_scroll_to_iter (GtkTextView *text_view,
1443 gdouble within_margin,
1449 GdkRectangle screen;
1454 gboolean retval = FALSE;
1456 gint screen_xoffset, screen_yoffset;
1457 gint current_x_scroll, current_y_scroll;
1459 /* FIXME why don't we do the validate-at-scroll-destination thing
1460 * from flush_scroll in this function? I think it wasn't done before
1461 * because changed_handler was screwed up, but I could be wrong.
1464 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1465 g_return_val_if_fail (iter != NULL, FALSE);
1466 g_return_val_if_fail (within_margin >= 0.0 && within_margin < 0.5, FALSE);
1467 g_return_val_if_fail (xalign >= 0.0 && xalign <= 1.0, FALSE);
1468 g_return_val_if_fail (yalign >= 0.0 && yalign <= 1.0, FALSE);
1470 widget = GTK_WIDGET (text_view);
1472 DV(g_print(G_STRLOC"\n"));
1474 gtk_text_layout_get_iter_location (text_view->layout,
1478 DV (g_print (" target rect %d,%d %d x %d\n", rect.x, rect.y, rect.width, rect.height));
1480 current_x_scroll = text_view->xoffset;
1481 current_y_scroll = text_view->yoffset;
1483 screen.x = current_x_scroll;
1484 screen.y = current_y_scroll;
1485 screen.width = SCREEN_WIDTH (widget);
1486 screen.height = SCREEN_HEIGHT (widget);
1488 screen_xoffset = screen.width * within_margin;
1489 screen_yoffset = screen.height * within_margin;
1491 screen.x += screen_xoffset;
1492 screen.y += screen_yoffset;
1493 screen.width -= screen_xoffset * 2;
1494 screen.height -= screen_yoffset * 2;
1496 /* paranoia check */
1497 if (screen.width < 1)
1499 if (screen.height < 1)
1502 /* The -1 here ensures that we leave enough space to draw the cursor
1503 * when this function is used for horizontal scrolling.
1505 screen_right = screen.x + screen.width - 1;
1506 screen_bottom = screen.y + screen.height;
1508 /* The alignment affects the point in the target character that we
1509 * choose to align. If we're doing right/bottom alignment, we align
1510 * the right/bottom edge of the character the mark is at; if we're
1511 * doing left/top we align the left/top edge of the character; if
1512 * we're doing center alignment we align the center of the
1516 /* Vertical scroll */
1519 scroll_dest = current_y_scroll;
1523 scroll_dest = rect.y + (rect.height * yalign) - (screen.height * yalign);
1525 /* if scroll_dest < screen.y, we move a negative increment (up),
1526 * else a positive increment (down)
1528 scroll_inc = scroll_dest - screen.y + screen_yoffset;
1532 /* move minimum to get onscreen */
1533 if (rect.y < screen.y)
1535 scroll_dest = rect.y;
1536 scroll_inc = scroll_dest - screen.y - screen_yoffset;
1538 else if ((rect.y + rect.height) > screen_bottom)
1540 scroll_dest = rect.y + rect.height;
1541 scroll_inc = scroll_dest - screen_bottom + screen_yoffset;
1545 if (scroll_inc != 0)
1547 retval = set_adjustment_clamped (get_vadjustment (text_view),
1548 current_y_scroll + scroll_inc);
1550 DV (g_print (" vert increment %d\n", scroll_inc));
1553 /* Horizontal scroll */
1556 scroll_dest = current_x_scroll;
1560 scroll_dest = rect.x + (rect.width * xalign) - (screen.width * xalign);
1562 /* if scroll_dest < screen.y, we move a negative increment (left),
1563 * else a positive increment (right)
1565 scroll_inc = scroll_dest - screen.x + screen_xoffset;
1569 /* move minimum to get onscreen */
1570 if (rect.x < screen.x)
1572 scroll_dest = rect.x;
1573 scroll_inc = scroll_dest - screen.x - screen_xoffset;
1575 else if ((rect.x + rect.width) > screen_right)
1577 scroll_dest = rect.x + rect.width;
1578 scroll_inc = scroll_dest - screen_right + screen_xoffset;
1582 if (scroll_inc != 0)
1584 retval = set_adjustment_clamped (get_hadjustment (text_view),
1585 current_x_scroll + scroll_inc);
1587 DV (g_print (" horiz increment %d\n", scroll_inc));
1591 DV(g_print (">Actually scrolled ("G_STRLOC")\n"));
1593 DV(g_print (">Didn't end up scrolling ("G_STRLOC")\n"));
1599 free_pending_scroll (GtkTextPendingScroll *scroll)
1601 if (!gtk_text_mark_get_deleted (scroll->mark))
1602 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark),
1604 g_object_unref (scroll->mark);
1609 cancel_pending_scroll (GtkTextView *text_view)
1611 if (text_view->pending_scroll)
1613 free_pending_scroll (text_view->pending_scroll);
1614 text_view->pending_scroll = NULL;
1619 gtk_text_view_queue_scroll (GtkTextView *text_view,
1621 gdouble within_margin,
1627 GtkTextPendingScroll *scroll;
1629 DV(g_print(G_STRLOC"\n"));
1631 scroll = g_new (GtkTextPendingScroll, 1);
1633 scroll->within_margin = within_margin;
1634 scroll->use_align = use_align;
1635 scroll->xalign = xalign;
1636 scroll->yalign = yalign;
1638 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
1640 scroll->mark = gtk_text_buffer_create_mark (get_buffer (text_view),
1643 gtk_text_mark_get_left_gravity (mark));
1645 g_object_ref (scroll->mark);
1647 cancel_pending_scroll (text_view);
1649 text_view->pending_scroll = scroll;
1653 gtk_text_view_flush_scroll (GtkTextView *text_view)
1656 GtkTextPendingScroll *scroll;
1660 widget = GTK_WIDGET (text_view);
1662 DV(g_print(G_STRLOC"\n"));
1664 if (text_view->pending_scroll == NULL)
1666 DV (g_print ("in flush scroll, no pending scroll\n"));
1670 scroll = text_view->pending_scroll;
1672 /* avoid recursion */
1673 text_view->pending_scroll = NULL;
1675 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, scroll->mark);
1677 /* Validate area around the scroll destination, so the adjustment
1678 * can meaningfully point into that area. We must validate
1679 * enough area to be sure that after we scroll, everything onscreen
1680 * is valid; otherwise, validation will maintain the first para
1681 * in one place, but may push the target iter off the bottom of
1684 DV(g_print (">Validating scroll destination ("G_STRLOC")\n"));
1685 gtk_text_layout_validate_yrange (text_view->layout, &iter,
1686 - (widget->allocation.height * 2),
1687 widget->allocation.height * 2);
1689 DV(g_print (">Done validating scroll destination ("G_STRLOC")\n"));
1691 /* Ensure we have updated width/height */
1692 gtk_text_view_update_adjustments (text_view);
1694 retval = gtk_text_view_scroll_to_iter (text_view,
1696 scroll->within_margin,
1701 free_pending_scroll (scroll);
1707 gtk_text_view_set_adjustment_upper (GtkAdjustment *adj, gdouble upper)
1709 if (upper != adj->upper)
1711 gdouble min = MAX (0.0, upper - adj->page_size);
1712 gboolean value_changed = FALSE;
1716 if (adj->value > min)
1719 value_changed = TRUE;
1722 gtk_adjustment_changed (adj);
1723 DV(g_print(">Changed adj upper to %g ("G_STRLOC")\n", upper));
1727 DV(g_print(">Changed adj value because upper decreased ("G_STRLOC")\n"));
1728 gtk_adjustment_value_changed (adj);
1734 gtk_text_view_update_adjustments (GtkTextView *text_view)
1736 gint width = 0, height = 0;
1738 DV(g_print(">Updating adjustments ("G_STRLOC")\n"));
1740 if (text_view->layout)
1741 gtk_text_layout_get_size (text_view->layout, &width, &height);
1743 /* Make room for the cursor after the last character in the widest line */
1744 width += SPACE_FOR_CURSOR;
1746 if (text_view->width != width || text_view->height != height)
1748 text_view->width = width;
1749 text_view->height = height;
1751 gtk_text_view_set_adjustment_upper (get_hadjustment (text_view),
1752 MAX (SCREEN_WIDTH (text_view), width));
1753 gtk_text_view_set_adjustment_upper (get_vadjustment (text_view),
1754 MAX (SCREEN_HEIGHT (text_view), height));
1756 /* hadj/vadj exist since we called get_hadjustment/get_vadjustment above */
1758 /* Set up the step sizes; we'll say that a page is
1759 our allocation minus one step, and a step is
1760 1/10 of our allocation. */
1761 text_view->hadjustment->step_increment =
1762 SCREEN_WIDTH (text_view) / 10.0;
1763 text_view->hadjustment->page_increment =
1764 SCREEN_WIDTH (text_view) * 0.9;
1766 text_view->vadjustment->step_increment =
1767 SCREEN_HEIGHT (text_view) / 10.0;
1768 text_view->vadjustment->page_increment =
1769 SCREEN_HEIGHT (text_view) * 0.9;
1771 gtk_adjustment_changed (get_hadjustment (text_view));
1772 gtk_adjustment_changed (get_vadjustment (text_view));
1777 gtk_text_view_update_layout_width (GtkTextView *text_view)
1779 DV(g_print(">Updating layout width ("G_STRLOC")\n"));
1781 gtk_text_view_ensure_layout (text_view);
1783 gtk_text_layout_set_screen_width (text_view->layout,
1784 MAX (1, SCREEN_WIDTH (text_view) - SPACE_FOR_CURSOR));
1788 gtk_text_view_update_im_spot_location (GtkTextView *text_view)
1792 if (text_view->layout == NULL)
1795 gtk_text_view_get_cursor_location (text_view, &area);
1797 area.x -= text_view->xoffset;
1798 area.y -= text_view->yoffset;
1800 /* Width returned by Pango indicates direction of cursor,
1801 * by it's sign more than the size of cursor.
1805 gtk_im_context_set_cursor_location (text_view->im_context, &area);
1809 * gtk_text_view_scroll_to_mark:
1810 * @text_view: a #GtkTextView
1811 * @mark: a #GtkTextMark
1812 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1813 * @use_align: whether to use alignment arguments (if %FALSE, just get the mark onscreen)
1814 * @xalign: horizontal alignment of mark within visible area.
1815 * @yalign: vertical alignment of mark within visible area
1817 * Scrolls @text_view so that @mark is on the screen in the position
1818 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1819 * left or top, 1.0 indicates right or bottom, 0.5 means center. If @use_align
1820 * is %FALSE, the text scrolls the minimal distance to get the mark onscreen,
1821 * possibly not scrolling at all. The effective screen for purposes
1822 * of this function is reduced by a margin of size @within_margin.
1826 gtk_text_view_scroll_to_mark (GtkTextView *text_view,
1828 gdouble within_margin,
1833 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1834 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
1835 g_return_if_fail (within_margin >= 0.0 && within_margin < 0.5);
1836 g_return_if_fail (xalign >= 0.0 && xalign <= 1.0);
1837 g_return_if_fail (yalign >= 0.0 && yalign <= 1.0);
1839 gtk_text_view_queue_scroll (text_view, mark,
1845 /* If no validation is pending, we need to go ahead and force an
1848 if (text_view->layout &&
1849 gtk_text_layout_is_valid (text_view->layout))
1850 gtk_text_view_flush_scroll (text_view);
1854 * gtk_text_view_scroll_mark_onscreen:
1855 * @text_view: a #GtkTextView
1856 * @mark: a mark in the buffer for @text_view
1858 * Scrolls @text_view the minimum distance such that @mark is contained
1859 * within the visible area of the widget.
1863 gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
1866 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1867 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
1869 gtk_text_view_scroll_to_mark (text_view, mark, 0.0, FALSE, 0.0, 0.0);
1873 clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter)
1875 GdkRectangle visible_rect;
1876 gtk_text_view_get_visible_rect (text_view, &visible_rect);
1878 return gtk_text_layout_clamp_iter_to_vrange (text_view->layout, iter,
1880 visible_rect.y + visible_rect.height);
1884 * gtk_text_view_move_mark_onscreen:
1885 * @text_view: a #GtkTextView
1886 * @mark: a #GtkTextMark
1888 * Moves a mark within the buffer so that it's
1889 * located within the currently-visible text area.
1891 * Return value: %TRUE if the mark moved (wasn't already onscreen)
1894 gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
1899 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1900 g_return_val_if_fail (mark != NULL, FALSE);
1902 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
1904 if (clamp_iter_onscreen (text_view, &iter))
1906 gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter);
1914 * gtk_text_view_get_visible_rect:
1915 * @text_view: a #GtkTextView
1916 * @visible_rect: rectangle to fill
1918 * Fills @visible_rect with the currently-visible
1919 * region of the buffer, in buffer coordinates. Convert to window coordinates
1920 * with gtk_text_view_buffer_to_window_coords().
1923 gtk_text_view_get_visible_rect (GtkTextView *text_view,
1924 GdkRectangle *visible_rect)
1928 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1930 widget = GTK_WIDGET (text_view);
1934 visible_rect->x = text_view->xoffset;
1935 visible_rect->y = text_view->yoffset;
1936 visible_rect->width = SCREEN_WIDTH (widget);
1937 visible_rect->height = SCREEN_HEIGHT (widget);
1939 DV(g_print(" visible rect: %d,%d %d x %d\n",
1942 visible_rect->width,
1943 visible_rect->height));
1948 * gtk_text_view_set_wrap_mode:
1949 * @text_view: a #GtkTextView
1950 * @wrap_mode: a #GtkWrapMode
1952 * Sets the line wrapping for the view.
1955 gtk_text_view_set_wrap_mode (GtkTextView *text_view,
1956 GtkWrapMode wrap_mode)
1958 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1960 if (text_view->wrap_mode != wrap_mode)
1962 text_view->wrap_mode = wrap_mode;
1964 if (text_view->layout)
1966 text_view->layout->default_style->wrap_mode = wrap_mode;
1967 gtk_text_layout_default_style_changed (text_view->layout);
1971 g_object_notify (G_OBJECT (text_view), "wrap_mode");
1975 * gtk_text_view_get_wrap_mode:
1976 * @text_view: a #GtkTextView
1978 * Gets the line wrapping for the view.
1980 * Return value: the line wrap setting
1983 gtk_text_view_get_wrap_mode (GtkTextView *text_view)
1985 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAP_NONE);
1987 return text_view->wrap_mode;
1991 * gtk_text_view_set_editable:
1992 * @text_view: a #GtkTextView
1993 * @setting: whether it's editable
1995 * Sets the default editability of the #GtkTextView. You can override
1996 * this default setting with tags in the buffer, using the "editable"
1997 * attribute of tags.
2000 gtk_text_view_set_editable (GtkTextView *text_view,
2003 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2004 setting = setting != FALSE;
2006 if (text_view->editable != setting)
2008 text_view->editable = setting;
2010 if (text_view->layout)
2012 text_view->layout->default_style->editable = text_view->editable;
2013 gtk_text_layout_default_style_changed (text_view->layout);
2016 g_object_notify (G_OBJECT (text_view), "editable");
2021 * gtk_text_view_get_editable:
2022 * @text_view: a #GtkTextView
2024 * Returns the default editability of the #GtkTextView. Tags in the
2025 * buffer may override this setting for some ranges of text.
2027 * Return value: whether text is editable by default
2030 gtk_text_view_get_editable (GtkTextView *text_view)
2032 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2034 return text_view->editable;
2038 * gtk_text_view_set_pixels_above_lines:
2039 * @text_view: a #GtkTextView
2040 * @pixels_above_lines: pixels above paragraphs
2042 * Sets the default number of blank pixels above paragraphs in @text_view.
2043 * Tags in the buffer for @text_view may override the defaults.
2047 gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
2048 gint pixels_above_lines)
2050 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2052 if (text_view->pixels_above_lines != pixels_above_lines)
2054 text_view->pixels_above_lines = pixels_above_lines;
2056 if (text_view->layout)
2058 text_view->layout->default_style->pixels_above_lines = pixels_above_lines;
2059 gtk_text_layout_default_style_changed (text_view->layout);
2062 g_object_notify (G_OBJECT (text_view), "pixels_above_lines");
2067 * gtk_text_view_get_pixels_above_lines:
2068 * @text_view: a #GtkTextView
2070 * Gets the default number of pixels to put above paragraphs.
2072 * Return value: default number of pixels above paragraphs
2075 gtk_text_view_get_pixels_above_lines (GtkTextView *text_view)
2077 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2079 return text_view->pixels_above_lines;
2083 * gtk_text_view_set_pixels_below_lines:
2084 * @text_view: a #GtkTextView
2085 * @pixels_below_lines: pixels below paragraphs
2087 * Sets the default number of pixels of blank space
2088 * to put below paragraphs in @text_view. May be overridden
2089 * by tags applied to @text_view's buffer.
2093 gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
2094 gint pixels_below_lines)
2096 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2098 if (text_view->pixels_below_lines != pixels_below_lines)
2100 text_view->pixels_below_lines = pixels_below_lines;
2102 if (text_view->layout)
2104 text_view->layout->default_style->pixels_below_lines = pixels_below_lines;
2105 gtk_text_layout_default_style_changed (text_view->layout);
2108 g_object_notify (G_OBJECT (text_view), "pixels_below_lines");
2113 * gtk_text_view_get_pixels_below_lines:
2114 * @text_view: a #GtkTextView
2116 * Gets the value set by gtk_text_view_set_pixels_below_lines().
2118 * Return value: default number of blank pixels below paragraphs
2121 gtk_text_view_get_pixels_below_lines (GtkTextView *text_view)
2123 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2125 return text_view->pixels_below_lines;
2129 * gtk_text_view_set_pixels_inside_wrap:
2130 * @text_view: a #GtkTextView
2131 * @pixels_inside_wrap: default number of pixels between wrapped lines
2133 * Sets the default number of pixels of blank space to leave between
2134 * display/wrapped lines within a paragraph. May be overridden by
2135 * tags in @text_view's buffer.
2139 gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
2140 gint pixels_inside_wrap)
2142 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2144 if (text_view->pixels_inside_wrap != pixels_inside_wrap)
2146 text_view->pixels_inside_wrap = pixels_inside_wrap;
2148 if (text_view->layout)
2150 text_view->layout->default_style->pixels_inside_wrap = pixels_inside_wrap;
2151 gtk_text_layout_default_style_changed (text_view->layout);
2154 g_object_notify (G_OBJECT (text_view), "pixels_inside_wrap");
2159 * gtk_text_view_get_pixels_inside_wrap:
2160 * @text_view: a #GtkTextView
2162 * Gets the value set by gtk_text_view_set_pixels_inside_wrap().
2164 * Return value: default number of pixels of blank space between wrapped lines
2167 gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view)
2169 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2171 return text_view->pixels_inside_wrap;
2175 * gtk_text_view_set_justification:
2176 * @text_view: a #GtkTextView
2177 * @justification: justification
2179 * Sets the default justification of text in @text_view.
2180 * Tags in the view's buffer may override the default.
2184 gtk_text_view_set_justification (GtkTextView *text_view,
2185 GtkJustification justification)
2187 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2189 if (text_view->justify != justification)
2191 text_view->justify = justification;
2193 if (text_view->layout)
2195 text_view->layout->default_style->justification = justification;
2196 gtk_text_layout_default_style_changed (text_view->layout);
2199 g_object_notify (G_OBJECT (text_view), "justification");
2204 * gtk_text_view_get_justification:
2205 * @text_view: a #GtkTextView
2207 * Gets the default justification of paragraphs in @text_view.
2208 * Tags in the buffer may override the default.
2210 * Return value: default justification
2213 gtk_text_view_get_justification (GtkTextView *text_view)
2215 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_JUSTIFY_LEFT);
2217 return text_view->justify;
2221 * gtk_text_view_set_left_margin:
2222 * @text_view: a #GtkTextView
2223 * @left_margin: left margin in pixels
2225 * Sets the default left margin for text in @text_view.
2226 * Tags in the buffer may override the default.
2230 gtk_text_view_set_left_margin (GtkTextView *text_view,
2233 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2235 if (text_view->left_margin != left_margin)
2237 text_view->left_margin = left_margin;
2239 if (text_view->layout)
2241 text_view->layout->default_style->left_margin = left_margin;
2242 gtk_text_layout_default_style_changed (text_view->layout);
2245 g_object_notify (G_OBJECT (text_view), "left_margin");
2250 * gtk_text_view_get_left_margin:
2251 * @text_view: a #GtkTextView
2253 * Gets the default left margin size of paragraphs in the @text_view.
2254 * Tags in the buffer may override the default.
2256 * Return value: left margin in pixels
2259 gtk_text_view_get_left_margin (GtkTextView *text_view)
2261 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2263 return text_view->left_margin;
2267 * gtk_text_view_set_right_margin:
2268 * @text_view: a #GtkTextView
2269 * @right_margin: right margin in pixels
2271 * Sets the default right margin for text in the text view.
2272 * Tags in the buffer may override the default.
2276 gtk_text_view_set_right_margin (GtkTextView *text_view,
2279 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2281 if (text_view->right_margin != right_margin)
2283 text_view->right_margin = right_margin;
2285 if (text_view->layout)
2287 text_view->layout->default_style->right_margin = right_margin;
2288 gtk_text_layout_default_style_changed (text_view->layout);
2291 g_object_notify (G_OBJECT (text_view), "right_margin");
2296 * gtk_text_view_get_right_margin:
2297 * @text_view: a #GtkTextView
2299 * Gets the default right margin for text in @text_view. Tags
2300 * in the buffer may override the default.
2302 * Return value: right margin in pixels
2305 gtk_text_view_get_right_margin (GtkTextView *text_view)
2307 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2309 return text_view->right_margin;
2313 * gtk_text_view_set_indent:
2314 * @text_view: a #GtkTextView
2315 * @indent: indentation in pixels
2317 * Sets the default indentation for paragraphs in @text_view.
2318 * Tags in the buffer may override the default.
2322 gtk_text_view_set_indent (GtkTextView *text_view,
2325 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2327 if (text_view->indent != indent)
2329 text_view->indent = indent;
2331 if (text_view->layout)
2333 text_view->layout->default_style->indent = indent;
2334 gtk_text_layout_default_style_changed (text_view->layout);
2337 g_object_notify (G_OBJECT (text_view), "indent");
2342 * gtk_text_view_get_indent:
2343 * @text_view: a #GtkTextView
2345 * Gets the default indentation of paragraphs in @text_view.
2346 * Tags in the view's buffer may override the default.
2347 * The indentation may be negative.
2349 * Return value: number of pixels of indentation
2352 gtk_text_view_get_indent (GtkTextView *text_view)
2354 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2356 return text_view->indent;
2360 * gtk_text_view_set_tabs:
2361 * @text_view: a #GtkTextView
2362 * @tabs: tabs as a #PangoTabArray
2364 * Sets the default tab stops for paragraphs in @text_view.
2365 * Tags in the buffer may override the default.
2369 gtk_text_view_set_tabs (GtkTextView *text_view,
2370 PangoTabArray *tabs)
2372 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2374 if (text_view->tabs)
2375 pango_tab_array_free (text_view->tabs);
2377 text_view->tabs = tabs ? pango_tab_array_copy (tabs) : NULL;
2379 if (text_view->layout)
2381 /* some unkosher futzing in internal struct details... */
2382 if (text_view->layout->default_style->tabs)
2383 pango_tab_array_free (text_view->layout->default_style->tabs);
2385 text_view->layout->default_style->tabs =
2386 text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
2388 gtk_text_layout_default_style_changed (text_view->layout);
2391 g_object_notify (G_OBJECT (text_view), "tabs");
2395 * gtk_text_view_get_tabs:
2396 * @text_view: a #GtkTextView
2398 * Gets the default tabs for @text_view. Tags in the buffer may
2399 * override the defaults. The returned array will be %NULL if
2400 * "standard" (8-space) tabs are used. Free the return value
2401 * with pango_tab_array_free().
2403 * Return value: copy of default tab array, or %NULL if "standard" tabs are used; must be freed with pango_tab_array_free().
2406 gtk_text_view_get_tabs (GtkTextView *text_view)
2408 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
2410 return text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
2414 * gtk_text_view_set_cursor_visible:
2415 * @text_view: a #GtkTextView
2416 * @setting: whether to show the insertion cursor
2418 * Toggles whether the insertion point is displayed. A buffer with no editable
2419 * text probably shouldn't have a visible cursor, so you may want to turn
2423 gtk_text_view_set_cursor_visible (GtkTextView *text_view,
2426 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2428 setting = (setting != FALSE);
2430 if (text_view->cursor_visible != setting)
2432 text_view->cursor_visible = setting;
2434 if (GTK_WIDGET_HAS_FOCUS (text_view))
2436 if (text_view->layout)
2438 gtk_text_layout_set_cursor_visible (text_view->layout, setting);
2439 gtk_text_view_check_cursor_blink (text_view);
2443 g_object_notify (G_OBJECT (text_view), "cursor_visible");
2448 * gtk_text_view_get_cursor_visible:
2449 * @text_view: a #GtkTextView
2451 * Find out whether the cursor is being displayed.
2453 * Return value: whether the insertion mark is visible
2456 gtk_text_view_get_cursor_visible (GtkTextView *text_view)
2458 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2460 return text_view->cursor_visible;
2465 * gtk_text_view_place_cursor_onscreen:
2466 * @text_view: a #GtkTextView
2468 * Moves the cursor to the currently visible region of the
2469 * buffer, it it isn't there already.
2471 * Return value: TRUE if the cursor had to be moved.
2474 gtk_text_view_place_cursor_onscreen (GtkTextView *text_view)
2478 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2480 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
2481 gtk_text_buffer_get_mark (get_buffer (text_view),
2484 if (clamp_iter_onscreen (text_view, &insert))
2486 gtk_text_buffer_place_cursor (get_buffer (text_view), &insert);
2494 gtk_text_view_remove_validate_idles (GtkTextView *text_view)
2496 if (text_view->first_validate_idle != 0)
2498 DV (g_print ("Removing first validate idle: %s\n", G_STRLOC));
2499 g_source_remove (text_view->first_validate_idle);
2500 text_view->first_validate_idle = 0;
2503 if (text_view->incremental_validate_idle != 0)
2505 g_source_remove (text_view->incremental_validate_idle);
2506 text_view->incremental_validate_idle = 0;
2511 gtk_text_view_destroy (GtkObject *object)
2513 GtkTextView *text_view;
2514 GtkTextLayout *layout;
2516 text_view = GTK_TEXT_VIEW (object);
2518 layout = text_view->layout;
2520 gtk_text_view_remove_validate_idles (text_view);
2521 gtk_text_view_set_buffer (text_view, NULL);
2522 gtk_text_view_destroy_layout (text_view);
2524 (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
2528 gtk_text_view_finalize (GObject *object)
2530 GtkTextView *text_view;
2532 text_view = GTK_TEXT_VIEW (object);
2534 g_return_if_fail (text_view->buffer == NULL);
2536 gtk_text_view_destroy_layout (text_view);
2537 gtk_text_view_set_buffer (text_view, NULL);
2539 cancel_pending_scroll (text_view);
2541 if (text_view->tabs)
2542 pango_tab_array_free (text_view->tabs);
2544 if (text_view->hadjustment)
2545 g_object_unref (text_view->hadjustment);
2546 if (text_view->vadjustment)
2547 g_object_unref (text_view->vadjustment);
2549 text_window_free (text_view->text_window);
2551 if (text_view->left_window)
2552 text_window_free (text_view->left_window);
2554 if (text_view->top_window)
2555 text_window_free (text_view->top_window);
2557 if (text_view->right_window)
2558 text_window_free (text_view->right_window);
2560 if (text_view->bottom_window)
2561 text_window_free (text_view->bottom_window);
2563 g_object_unref (text_view->im_context);
2565 (* G_OBJECT_CLASS (parent_class)->finalize) (object);
2569 gtk_text_view_set_property (GObject *object,
2571 const GValue *value,
2574 GtkTextView *text_view;
2576 text_view = GTK_TEXT_VIEW (object);
2580 case PROP_PIXELS_ABOVE_LINES:
2581 gtk_text_view_set_pixels_above_lines (text_view, g_value_get_int (value));
2584 case PROP_PIXELS_BELOW_LINES:
2585 gtk_text_view_set_pixels_below_lines (text_view, g_value_get_int (value));
2588 case PROP_PIXELS_INSIDE_WRAP:
2589 gtk_text_view_set_pixels_inside_wrap (text_view, g_value_get_int (value));
2593 gtk_text_view_set_editable (text_view, g_value_get_boolean (value));
2596 case PROP_WRAP_MODE:
2597 gtk_text_view_set_wrap_mode (text_view, g_value_get_enum (value));
2600 case PROP_JUSTIFICATION:
2601 gtk_text_view_set_justification (text_view, g_value_get_enum (value));
2604 case PROP_LEFT_MARGIN:
2605 gtk_text_view_set_left_margin (text_view, g_value_get_int (value));
2608 case PROP_RIGHT_MARGIN:
2609 gtk_text_view_set_right_margin (text_view, g_value_get_int (value));
2613 gtk_text_view_set_indent (text_view, g_value_get_int (value));
2617 gtk_text_view_set_tabs (text_view, g_value_get_boxed (value));
2620 case PROP_CURSOR_VISIBLE:
2621 gtk_text_view_set_cursor_visible (text_view, g_value_get_boolean (value));
2624 case PROP_OVERWRITE:
2625 gtk_text_view_set_overwrite (text_view, g_value_get_boolean (value));
2629 gtk_text_view_set_buffer (text_view, GTK_TEXT_BUFFER (g_value_get_object (value)));
2632 case PROP_ACCEPTS_TAB:
2633 gtk_text_view_set_accepts_tab (text_view, g_value_get_boolean (value));
2637 g_assert_not_reached ();
2643 gtk_text_view_get_property (GObject *object,
2648 GtkTextView *text_view;
2650 text_view = GTK_TEXT_VIEW (object);
2654 case PROP_PIXELS_ABOVE_LINES:
2655 g_value_set_int (value, text_view->pixels_above_lines);
2658 case PROP_PIXELS_BELOW_LINES:
2659 g_value_set_int (value, text_view->pixels_below_lines);
2662 case PROP_PIXELS_INSIDE_WRAP:
2663 g_value_set_int (value, text_view->pixels_inside_wrap);
2667 g_value_set_boolean (value, text_view->editable);
2670 case PROP_WRAP_MODE:
2671 g_value_set_enum (value, text_view->wrap_mode);
2674 case PROP_JUSTIFICATION:
2675 g_value_set_enum (value, text_view->justify);
2678 case PROP_LEFT_MARGIN:
2679 g_value_set_int (value, text_view->left_margin);
2682 case PROP_RIGHT_MARGIN:
2683 g_value_set_int (value, text_view->right_margin);
2687 g_value_set_int (value, text_view->indent);
2691 g_value_set_boxed (value, text_view->tabs);
2694 case PROP_CURSOR_VISIBLE:
2695 g_value_set_boolean (value, text_view->cursor_visible);
2699 g_value_set_object (value, get_buffer (text_view));
2702 case PROP_OVERWRITE:
2703 g_value_set_boolean (value, text_view->overwrite_mode);
2706 case PROP_ACCEPTS_TAB:
2707 g_value_set_boolean (value, text_view->accepts_tab);
2711 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2717 gtk_text_view_size_request (GtkWidget *widget,
2718 GtkRequisition *requisition)
2720 GtkTextView *text_view;
2722 gint focus_edge_width;
2724 gboolean interior_focus;
2726 text_view = GTK_TEXT_VIEW (widget);
2728 gtk_widget_style_get (widget,
2729 "interior_focus", &interior_focus,
2730 "focus_line_width", &focus_width,
2734 focus_edge_width = 0;
2736 focus_edge_width = focus_width;
2738 if (text_view->layout)
2740 text_view->text_window->requisition.width = text_view->layout->width;
2741 text_view->text_window->requisition.height = text_view->layout->height;
2745 text_view->text_window->requisition.width = 0;
2746 text_view->text_window->requisition.height = 0;
2749 requisition->width = text_view->text_window->requisition.width + focus_edge_width * 2;
2750 requisition->height = text_view->text_window->requisition.height + focus_edge_width * 2;
2752 if (text_view->left_window)
2753 requisition->width += text_view->left_window->requisition.width;
2755 if (text_view->right_window)
2756 requisition->width += text_view->right_window->requisition.width;
2758 if (text_view->top_window)
2759 requisition->height += text_view->top_window->requisition.height;
2761 if (text_view->bottom_window)
2762 requisition->height += text_view->bottom_window->requisition.height;
2764 requisition->width += GTK_CONTAINER (text_view)->border_width * 2;
2765 requisition->height += GTK_CONTAINER (text_view)->border_width * 2;
2767 tmp_list = text_view->children;
2768 while (tmp_list != NULL)
2770 GtkTextViewChild *child = tmp_list->data;
2774 GtkRequisition child_req;
2775 GtkRequisition old_req;
2777 gtk_widget_get_child_requisition (child->widget, &old_req);
2779 gtk_widget_size_request (child->widget, &child_req);
2781 gtk_widget_get_child_requisition (child->widget, &child_req);
2783 /* Invalidate layout lines if required */
2784 if (text_view->layout &&
2785 (old_req.width != child_req.width ||
2786 old_req.height != child_req.height))
2787 gtk_text_child_anchor_queue_resize (child->anchor,
2792 GtkRequisition child_req;
2794 gtk_widget_size_request (child->widget, &child_req);
2797 tmp_list = g_slist_next (tmp_list);
2802 gtk_text_view_compute_child_allocation (GtkTextView *text_view,
2803 GtkTextViewChild *vc,
2804 GtkAllocation *allocation)
2810 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
2814 gtk_text_layout_get_line_yrange (text_view->layout, &iter,
2817 buffer_y += vc->from_top_of_line;
2819 allocation->x = vc->from_left_of_buffer - text_view->xoffset;
2820 allocation->y = buffer_y - text_view->yoffset;
2822 gtk_widget_get_child_requisition (vc->widget, &req);
2823 allocation->width = req.width;
2824 allocation->height = req.height;
2828 gtk_text_view_update_child_allocation (GtkTextView *text_view,
2829 GtkTextViewChild *vc)
2831 GtkAllocation allocation;
2833 gtk_text_view_compute_child_allocation (text_view, vc, &allocation);
2835 gtk_widget_size_allocate (vc->widget, &allocation);
2838 g_print ("allocation for %p allocated to %d,%d yoffset = %d\n",
2840 vc->widget->allocation.x,
2841 vc->widget->allocation.y,
2842 text_view->yoffset);
2847 gtk_text_view_child_allocated (GtkTextLayout *layout,
2853 GtkTextViewChild *vc = NULL;
2854 GtkTextView *text_view = data;
2856 /* x,y is the position of the child from the top of the line, and
2857 * from the left of the buffer. We have to translate that into text
2858 * window coordinates, then size_allocate the child.
2861 vc = g_object_get_data (G_OBJECT (child),
2862 "gtk-text-view-child");
2864 g_assert (vc != NULL);
2866 DV (g_print ("child allocated at %d,%d\n", x, y));
2868 vc->from_left_of_buffer = x;
2869 vc->from_top_of_line = y;
2871 gtk_text_view_update_child_allocation (text_view, vc);
2875 gtk_text_view_allocate_children (GtkTextView *text_view)
2879 DV(g_print(G_STRLOC"\n"));
2881 tmp_list = text_view->children;
2882 while (tmp_list != NULL)
2884 GtkTextViewChild *child = tmp_list->data;
2888 /* We need to force-validate the regions containing
2891 GtkTextIter child_loc;
2892 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
2896 /* Since anchored children are only ever allocated from
2897 * gtk_text_layout_get_line_display() we have to make sure
2898 * that the display line caching in the layout doesn't
2899 * get in the way. Invalidating the layout around the anchor
2902 if (GTK_WIDGET_ALLOC_NEEDED (child->widget))
2904 GtkTextIter end = child_loc;
2905 gtk_text_iter_forward_char (&end);
2906 gtk_text_layout_invalidate (text_view->layout, &child_loc, &end);
2909 gtk_text_layout_validate_yrange (text_view->layout,
2915 GtkAllocation allocation;
2916 GtkRequisition child_req;
2918 g_assert (child != NULL);
2920 allocation.x = child->x;
2921 allocation.y = child->y;
2923 gtk_widget_get_child_requisition (child->widget, &child_req);
2925 allocation.width = child_req.width;
2926 allocation.height = child_req.height;
2928 gtk_widget_size_allocate (child->widget, &allocation);
2931 tmp_list = g_slist_next (tmp_list);
2936 gtk_text_view_size_allocate (GtkWidget *widget,
2937 GtkAllocation *allocation)
2939 GtkTextView *text_view;
2940 GtkTextIter first_para;
2943 GdkRectangle text_rect;
2944 GdkRectangle left_rect;
2945 GdkRectangle right_rect;
2946 GdkRectangle top_rect;
2947 GdkRectangle bottom_rect;
2948 gint focus_edge_width;
2950 gboolean interior_focus;
2951 gboolean size_changed;
2953 text_view = GTK_TEXT_VIEW (widget);
2955 DV(g_print(G_STRLOC"\n"));
2958 widget->allocation.width != allocation->width ||
2959 widget->allocation.height != allocation->height;
2961 widget->allocation = *allocation;
2963 if (GTK_WIDGET_REALIZED (widget))
2965 gdk_window_move_resize (widget->window,
2966 allocation->x, allocation->y,
2967 allocation->width, allocation->height);
2970 /* distribute width/height among child windows. Ensure all
2971 * windows get at least a 1x1 allocation.
2974 gtk_widget_style_get (widget,
2975 "interior_focus", &interior_focus,
2976 "focus_line_width", &focus_width,
2980 focus_edge_width = 0;
2982 focus_edge_width = focus_width;
2984 width = allocation->width - focus_edge_width * 2 - GTK_CONTAINER (text_view)->border_width * 2;
2986 if (text_view->left_window)
2987 left_rect.width = text_view->left_window->requisition.width;
2989 left_rect.width = 0;
2991 width -= left_rect.width;
2993 if (text_view->right_window)
2994 right_rect.width = text_view->right_window->requisition.width;
2996 right_rect.width = 0;
2998 width -= right_rect.width;
3000 text_rect.width = MAX (1, width);
3002 top_rect.width = text_rect.width;
3003 bottom_rect.width = text_rect.width;
3006 height = allocation->height - focus_edge_width * 2 - GTK_CONTAINER (text_view)->border_width * 2;
3008 if (text_view->top_window)
3009 top_rect.height = text_view->top_window->requisition.height;
3011 top_rect.height = 0;
3013 height -= top_rect.height;
3015 if (text_view->bottom_window)
3016 bottom_rect.height = text_view->bottom_window->requisition.height;
3018 bottom_rect.height = 0;
3020 height -= bottom_rect.height;
3022 text_rect.height = MAX (1, height);
3024 left_rect.height = text_rect.height;
3025 right_rect.height = text_rect.height;
3028 left_rect.x = focus_edge_width + GTK_CONTAINER (text_view)->border_width;
3029 top_rect.y = focus_edge_width + GTK_CONTAINER (text_view)->border_width;
3031 text_rect.x = left_rect.x + left_rect.width;
3032 text_rect.y = top_rect.y + top_rect.height;
3034 left_rect.y = text_rect.y;
3035 right_rect.y = text_rect.y;
3037 top_rect.x = text_rect.x;
3038 bottom_rect.x = text_rect.x;
3040 right_rect.x = text_rect.x + text_rect.width;
3041 bottom_rect.y = text_rect.y + text_rect.height;
3043 text_window_size_allocate (text_view->text_window,
3046 if (text_view->left_window)
3047 text_window_size_allocate (text_view->left_window,
3050 if (text_view->right_window)
3051 text_window_size_allocate (text_view->right_window,
3054 if (text_view->top_window)
3055 text_window_size_allocate (text_view->top_window,
3058 if (text_view->bottom_window)
3059 text_window_size_allocate (text_view->bottom_window,
3062 gtk_text_view_update_layout_width (text_view);
3064 /* Note that this will do some layout validation */
3065 gtk_text_view_allocate_children (text_view);
3067 /* Ensure h/v adj exist */
3068 get_hadjustment (text_view);
3069 get_vadjustment (text_view);
3071 text_view->hadjustment->page_size = SCREEN_WIDTH (text_view);
3072 text_view->hadjustment->page_increment = SCREEN_WIDTH (text_view) * 0.9;
3073 text_view->hadjustment->step_increment = SCREEN_WIDTH (text_view) * 0.1;
3074 text_view->hadjustment->lower = 0;
3075 text_view->hadjustment->upper = MAX (SCREEN_WIDTH (text_view),
3078 if (text_view->hadjustment->value > text_view->hadjustment->upper - text_view->hadjustment->page_size)
3079 gtk_adjustment_set_value (text_view->hadjustment, MAX (0, text_view->hadjustment->upper - text_view->hadjustment->page_size));
3081 gtk_adjustment_changed (text_view->hadjustment);
3083 text_view->vadjustment->page_size = SCREEN_HEIGHT (text_view);
3084 text_view->vadjustment->page_increment = SCREEN_HEIGHT (text_view) * 0.9;
3085 text_view->vadjustment->step_increment = SCREEN_HEIGHT (text_view) * 0.1;
3086 text_view->vadjustment->lower = 0;
3087 text_view->vadjustment->upper = MAX (SCREEN_HEIGHT (text_view),
3090 /* Now adjust the value of the adjustment to keep the cursor at the
3091 * same place in the buffer
3093 gtk_text_view_get_first_para_iter (text_view, &first_para);
3094 gtk_text_layout_get_line_yrange (text_view->layout, &first_para, &y, NULL);
3096 y += text_view->first_para_pixels;
3098 if (y > text_view->vadjustment->upper - text_view->vadjustment->page_size)
3099 y = MAX (0, text_view->vadjustment->upper - text_view->vadjustment->page_size);
3101 if (y != text_view->yoffset)
3102 gtk_adjustment_set_value (text_view->vadjustment, y);
3104 gtk_adjustment_changed (text_view->vadjustment);
3106 /* The GTK resize loop processes all the pending exposes right
3107 * after doing the resize stuff, so the idle sizer won't have a
3108 * chance to run. So we do the work here.
3110 gtk_text_view_flush_first_validate (text_view);
3112 /* widget->window doesn't get auto-redrawn as the layout is computed, so has to
3115 if (size_changed && GTK_WIDGET_REALIZED (widget))
3116 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
3120 gtk_text_view_get_first_para_iter (GtkTextView *text_view,
3123 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter,
3124 text_view->first_para_mark);
3128 gtk_text_view_validate_onscreen (GtkTextView *text_view)
3130 GtkWidget *widget = GTK_WIDGET (text_view);
3132 DV(g_print(">Validating onscreen ("G_STRLOC")\n"));
3134 if (SCREEN_HEIGHT (widget) > 0)
3136 GtkTextIter first_para;
3138 /* Be sure we've validated the stuff onscreen; if we
3139 * scrolled, these calls won't have any effect, because
3140 * they were called in the recursive validate_onscreen
3142 gtk_text_view_get_first_para_iter (text_view, &first_para);
3144 gtk_text_layout_validate_yrange (text_view->layout,
3147 text_view->first_para_pixels +
3148 SCREEN_HEIGHT (widget));
3151 text_view->onscreen_validated = TRUE;
3153 DV(g_print(">Done validating onscreen, onscreen_validated = TRUE ("G_STRLOC")\n"));
3155 /* This can have the odd side effect of triggering a scroll, which should
3156 * flip "onscreen_validated" back to FALSE, but should also get us
3157 * back into this function to turn it on again.
3159 gtk_text_view_update_adjustments (text_view);
3161 g_assert (text_view->onscreen_validated);
3165 gtk_text_view_flush_first_validate (GtkTextView *text_view)
3167 if (text_view->first_validate_idle == 0)
3170 /* Do this first, which means that if an "invalidate"
3171 * occurs during any of this process, a new first_validate_callback
3172 * will be installed, and we'll start again.
3174 DV (g_print ("removing first validate in %s\n", G_STRLOC));
3175 g_source_remove (text_view->first_validate_idle);
3176 text_view->first_validate_idle = 0;
3178 /* be sure we have up-to-date screen size set on the
3181 gtk_text_view_update_layout_width (text_view);
3183 /* Bail out if we invalidated stuff; scrolling right away will just
3184 * confuse the issue.
3186 if (text_view->first_validate_idle != 0)
3188 DV(g_print(">Width change forced requeue ("G_STRLOC")\n"));
3192 /* scroll to any marks, if that's pending. This can jump us to
3193 * the validation codepath used for scrolling onscreen, if so we
3194 * bail out. It won't jump if already in that codepath since
3195 * value_changed is not recursive, so also validate if
3198 if (!gtk_text_view_flush_scroll (text_view) ||
3199 !text_view->onscreen_validated)
3200 gtk_text_view_validate_onscreen (text_view);
3202 DV(g_print(">Leaving first validate idle ("G_STRLOC")\n"));
3204 g_assert (text_view->onscreen_validated);
3209 first_validate_callback (gpointer data)
3211 GtkTextView *text_view = data;
3213 GDK_THREADS_ENTER ();
3215 /* Note that some of this code is duplicated at the end of size_allocate,
3216 * keep in sync with that.
3219 DV(g_print(G_STRLOC"\n"));
3221 gtk_text_view_flush_first_validate (text_view);
3223 GDK_THREADS_LEAVE ();
3229 incremental_validate_callback (gpointer data)
3231 GtkTextView *text_view = data;
3232 gboolean result = TRUE;
3234 GDK_THREADS_ENTER ();
3236 DV(g_print(G_STRLOC"\n"));
3238 gtk_text_layout_validate (text_view->layout, 2000);
3240 gtk_text_view_update_adjustments (text_view);
3242 if (gtk_text_layout_is_valid (text_view->layout))
3244 text_view->incremental_validate_idle = 0;
3248 GDK_THREADS_LEAVE ();
3254 gtk_text_view_invalidate (GtkTextView *text_view)
3256 DV (g_print (">Invalidate, onscreen_validated = %d now FALSE ("G_STRLOC")\n",
3257 text_view->onscreen_validated));
3259 text_view->onscreen_validated = FALSE;
3261 /* We'll invalidate when the layout is created */
3262 if (text_view->layout == NULL)
3265 if (!text_view->first_validate_idle)
3267 text_view->first_validate_idle = g_idle_add_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
3268 DV (g_print (G_STRLOC": adding first validate idle %d\n",
3269 text_view->first_validate_idle));
3272 if (!text_view->incremental_validate_idle)
3274 text_view->incremental_validate_idle = g_idle_add_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
3275 DV (g_print (G_STRLOC": adding incremental validate idle %d\n",
3276 text_view->incremental_validate_idle));
3281 invalidated_handler (GtkTextLayout *layout,
3284 GtkTextView *text_view;
3286 text_view = GTK_TEXT_VIEW (data);
3288 DV (g_print ("Invalidating due to layout invalidate signal\n"));
3289 gtk_text_view_invalidate (text_view);
3293 changed_handler (GtkTextLayout *layout,
3299 GtkTextView *text_view;
3301 GdkRectangle visible_rect;
3302 GdkRectangle redraw_rect;
3304 text_view = GTK_TEXT_VIEW (data);
3305 widget = GTK_WIDGET (data);
3307 DV(g_print(">Lines Validated ("G_STRLOC")\n"));
3309 if (GTK_WIDGET_REALIZED (text_view))
3311 gtk_text_view_get_visible_rect (text_view, &visible_rect);
3313 redraw_rect.x = visible_rect.x;
3314 redraw_rect.width = visible_rect.width;
3315 redraw_rect.y = start_y;
3317 if (old_height == new_height)
3318 redraw_rect.height = old_height;
3319 else if (start_y + old_height > visible_rect.y)
3320 redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y);
3322 redraw_rect.height = 0;
3324 if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect))
3326 /* text_window_invalidate_rect() takes buffer coordinates */
3327 text_window_invalidate_rect (text_view->text_window,
3330 DV(g_print(" invalidated rect: %d,%d %d x %d\n",
3334 redraw_rect.height));
3336 if (text_view->left_window)
3337 text_window_invalidate_rect (text_view->left_window,
3339 if (text_view->right_window)
3340 text_window_invalidate_rect (text_view->right_window,
3342 if (text_view->top_window)
3343 text_window_invalidate_rect (text_view->top_window,
3345 if (text_view->bottom_window)
3346 text_window_invalidate_rect (text_view->bottom_window,
3349 gtk_text_view_update_im_spot_location (text_view);
3353 if (old_height != new_height)
3355 gboolean yoffset_changed = FALSE;
3357 int new_first_para_top;
3358 int old_first_para_top;
3361 /* If the bottom of the old area was above the top of the
3362 * screen, we need to scroll to keep the current top of the
3363 * screen in place. Remember that first_para_pixels is the
3364 * position of the top of the screen in coordinates relative to
3365 * the first paragraph onscreen.
3367 * In short we are adding the height delta of the portion of the
3368 * changed region above first_para_mark to text_view->yoffset.
3370 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first,
3371 text_view->first_para_mark);
3373 gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL);
3375 old_first_para_top = text_view->yoffset - text_view->first_para_pixels;
3377 if (new_first_para_top != old_first_para_top)
3379 text_view->yoffset += new_first_para_top - old_first_para_top;
3381 get_vadjustment (text_view)->value = text_view->yoffset;
3382 yoffset_changed = TRUE;
3385 if (yoffset_changed)
3387 DV(g_print ("Changing scroll position (%s)\n", G_STRLOC));
3388 gtk_adjustment_value_changed (get_vadjustment (text_view));
3391 /* FIXME be smarter about which anchored widgets we update */
3393 tmp_list = text_view->children;
3394 while (tmp_list != NULL)
3396 GtkTextViewChild *child = tmp_list->data;
3399 gtk_text_view_update_child_allocation (text_view, child);
3401 tmp_list = g_slist_next (tmp_list);
3406 GtkRequisition old_req;
3407 GtkRequisition new_req;
3409 old_req = widget->requisition;
3411 /* Use this instead of gtk_widget_size_request wrapper
3412 * to avoid the optimization which just returns widget->requisition
3413 * if a resize hasn't been queued.
3415 GTK_WIDGET_GET_CLASS (widget)->size_request (widget, &new_req);
3417 if (old_req.width != new_req.width ||
3418 old_req.height != new_req.height)
3420 gtk_widget_queue_resize_no_redraw (widget);
3426 gtk_text_view_realize (GtkWidget *widget)
3428 GtkTextView *text_view;
3429 GdkWindowAttr attributes;
3430 gint attributes_mask;
3433 text_view = GTK_TEXT_VIEW (widget);
3434 GTK_WIDGET_SET_FLAGS (text_view, GTK_REALIZED);
3436 attributes.window_type = GDK_WINDOW_CHILD;
3437 attributes.x = widget->allocation.x;
3438 attributes.y = widget->allocation.y;
3439 attributes.width = widget->allocation.width;
3440 attributes.height = widget->allocation.height;
3441 attributes.wclass = GDK_INPUT_OUTPUT;
3442 attributes.visual = gtk_widget_get_visual (widget);
3443 attributes.colormap = gtk_widget_get_colormap (widget);
3444 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK;
3446 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3448 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
3449 &attributes, attributes_mask);
3450 gdk_window_set_user_data (widget->window, widget);
3452 /* must come before text_window_realize calls */
3453 widget->style = gtk_style_attach (widget->style, widget->window);
3455 gdk_window_set_background (widget->window,
3456 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3458 text_window_realize (text_view->text_window, widget->window);
3460 if (text_view->left_window)
3461 text_window_realize (text_view->left_window,
3464 if (text_view->top_window)
3465 text_window_realize (text_view->top_window,
3468 if (text_view->right_window)
3469 text_window_realize (text_view->right_window,
3472 if (text_view->bottom_window)
3473 text_window_realize (text_view->bottom_window,
3476 gtk_text_view_ensure_layout (text_view);
3478 if (text_view->buffer)
3480 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
3481 GDK_SELECTION_PRIMARY);
3482 gtk_text_buffer_add_selection_clipboard (text_view->buffer, clipboard);
3485 tmp_list = text_view->children;
3486 while (tmp_list != NULL)
3488 GtkTextViewChild *vc = tmp_list->data;
3490 text_view_child_set_parent_window (text_view, vc);
3492 tmp_list = tmp_list->next;
3497 gtk_text_view_unrealize (GtkWidget *widget)
3499 GtkTextView *text_view;
3501 text_view = GTK_TEXT_VIEW (widget);
3503 if (text_view->buffer)
3505 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
3506 GDK_SELECTION_PRIMARY);
3507 gtk_text_buffer_remove_selection_clipboard (text_view->buffer, clipboard);
3510 gtk_text_view_remove_validate_idles (text_view);
3512 if (text_view->popup_menu)
3514 gtk_widget_destroy (text_view->popup_menu);
3515 text_view->popup_menu = NULL;
3518 text_window_unrealize (text_view->text_window);
3520 if (text_view->left_window)
3521 text_window_unrealize (text_view->left_window);
3523 if (text_view->top_window)
3524 text_window_unrealize (text_view->top_window);
3526 if (text_view->right_window)
3527 text_window_unrealize (text_view->right_window);
3529 if (text_view->bottom_window)
3530 text_window_unrealize (text_view->bottom_window);
3532 gtk_text_view_destroy_layout (text_view);
3534 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
3538 gtk_text_view_set_background (GtkTextView *text_view)
3540 GtkWidget *widget = GTK_WIDGET (text_view);
3542 gdk_window_set_background (widget->window,
3543 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3545 gdk_window_set_background (text_view->text_window->bin_window,
3546 &widget->style->base[GTK_WIDGET_STATE (widget)]);
3548 if (text_view->left_window)
3549 gdk_window_set_background (text_view->left_window->bin_window,
3550 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3551 if (text_view->right_window)
3552 gdk_window_set_background (text_view->right_window->bin_window,
3553 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3555 if (text_view->top_window)
3556 gdk_window_set_background (text_view->top_window->bin_window,
3557 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3559 if (text_view->bottom_window)
3560 gdk_window_set_background (text_view->bottom_window->bin_window,
3561 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3565 gtk_text_view_style_set (GtkWidget *widget,
3566 GtkStyle *previous_style)
3568 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3570 if (GTK_WIDGET_REALIZED (widget))
3572 gtk_text_view_set_background (text_view);
3575 if (text_view->layout && previous_style)
3577 gtk_text_view_set_attributes_from_style (text_view,
3578 text_view->layout->default_style,
3580 gtk_text_layout_default_style_changed (text_view->layout);
3585 gtk_text_view_direction_changed (GtkWidget *widget,
3586 GtkTextDirection previous_direction)
3588 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3590 if (text_view->layout)
3592 text_view->layout->default_style->direction = gtk_widget_get_direction (widget);
3593 gtk_text_layout_default_style_changed (text_view->layout);
3598 gtk_text_view_state_changed (GtkWidget *widget,
3599 GtkStateType previous_state)
3601 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3603 if (GTK_WIDGET_REALIZED (widget))
3605 gtk_text_view_set_background (text_view);
3608 if (!GTK_WIDGET_IS_SENSITIVE (widget))
3610 /* Clear any selection */
3611 gtk_text_view_unselect (text_view);
3614 gtk_widget_queue_draw (widget);
3618 set_invisible_cursor (GdkWindow *window)
3620 GdkBitmap *empty_bitmap;
3623 char invisible_cursor_bits[] = { 0x0 };
3625 useless.red = useless.green = useless.blue = 0;
3628 empty_bitmap = gdk_bitmap_create_from_data (window,
3629 invisible_cursor_bits,
3632 cursor = gdk_cursor_new_from_pixmap (empty_bitmap,
3637 gdk_window_set_cursor (window, cursor);
3639 gdk_cursor_unref (cursor);
3641 g_object_unref (empty_bitmap);
3645 gtk_text_view_obscure_mouse_cursor (GtkTextView *text_view)
3647 if (text_view->mouse_cursor_obscured)
3650 set_invisible_cursor (text_view->text_window->bin_window);
3652 text_view->mouse_cursor_obscured = TRUE;
3656 gtk_text_view_unobscure_mouse_cursor (GtkTextView *text_view)
3658 if (text_view->mouse_cursor_obscured)
3662 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)),
3664 gdk_window_set_cursor (text_view->text_window->bin_window, cursor);
3665 gdk_cursor_unref (cursor);
3666 text_view->mouse_cursor_obscured = FALSE;
3671 gtk_text_view_grab_notify (GtkWidget *widget,
3672 gboolean was_grabbed)
3675 gtk_text_view_unobscure_mouse_cursor (GTK_TEXT_VIEW (widget));
3684 get_event_coordinates (GdkEvent *event, gint *x, gint *y)
3687 switch (event->type)
3689 case GDK_MOTION_NOTIFY:
3690 *x = event->motion.x;
3691 *y = event->motion.y;
3695 case GDK_BUTTON_PRESS:
3696 case GDK_2BUTTON_PRESS:
3697 case GDK_3BUTTON_PRESS:
3698 case GDK_BUTTON_RELEASE:
3699 *x = event->button.x;
3700 *y = event->button.y;
3705 case GDK_KEY_RELEASE:
3706 case GDK_ENTER_NOTIFY:
3707 case GDK_LEAVE_NOTIFY:
3708 case GDK_PROPERTY_NOTIFY:
3709 case GDK_SELECTION_CLEAR:
3710 case GDK_SELECTION_REQUEST:
3711 case GDK_SELECTION_NOTIFY:
3712 case GDK_PROXIMITY_IN:
3713 case GDK_PROXIMITY_OUT:
3714 case GDK_DRAG_ENTER:
3715 case GDK_DRAG_LEAVE:
3716 case GDK_DRAG_MOTION:
3717 case GDK_DRAG_STATUS:
3718 case GDK_DROP_START:
3719 case GDK_DROP_FINISHED:
3729 emit_event_on_tags (GtkWidget *widget,
3735 gboolean retval = FALSE;
3736 GtkTextView *text_view;
3738 text_view = GTK_TEXT_VIEW (widget);
3740 tags = gtk_text_iter_get_tags (iter);
3745 GtkTextTag *tag = tmp->data;
3747 if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter))
3753 tmp = g_slist_next (tmp);
3756 g_slist_free (tags);
3762 gtk_text_view_event (GtkWidget *widget, GdkEvent *event)
3764 GtkTextView *text_view;
3767 text_view = GTK_TEXT_VIEW (widget);
3769 if (text_view->layout == NULL ||
3770 get_buffer (text_view) == NULL)
3773 if (event->any.window != text_view->text_window->bin_window)
3776 if (get_event_coordinates (event, &x, &y))
3780 x += text_view->xoffset;
3781 y += text_view->yoffset;
3783 /* FIXME this is slow and we do it twice per event.
3784 * My favorite solution is to have GtkTextLayout cache
3785 * the last couple lookups.
3787 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3791 return emit_event_on_tags (widget, event, &iter);
3793 else if (event->type == GDK_KEY_PRESS ||
3794 event->type == GDK_KEY_RELEASE)
3796 GtkTextMark *insert;
3799 insert = gtk_text_buffer_get_mark (get_buffer (text_view),
3802 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3804 return emit_event_on_tags (widget, event, &iter);
3811 gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
3813 gboolean retval = FALSE;
3814 gboolean obscure = FALSE;
3815 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3816 GtkTextMark *insert;
3818 gboolean can_insert;
3820 if (text_view->layout == NULL ||
3821 get_buffer (text_view) == NULL)
3824 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
3825 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3826 can_insert = gtk_text_iter_can_insert (&iter, text_view->editable);
3828 gtk_im_context_filter_keypress (text_view->im_context, event))
3830 text_view->need_im_reset = TRUE;
3835 else if (GTK_WIDGET_CLASS (parent_class)->key_press_event &&
3836 GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
3838 /* use overall editability not can_insert, more predictable for users */
3839 else if (text_view->editable &&
3840 (event->keyval == GDK_Return ||
3841 event->keyval == GDK_KP_Enter))
3843 /* this won't actually insert the newline if the cursor isn't
3846 gtk_text_view_commit_text (text_view, "\n");
3851 /* Pass through Tab as literal tab, unless Control is held down */
3852 else if ((event->keyval == GDK_Tab ||
3853 event->keyval == GDK_KP_Tab) &&
3854 !(event->state & GDK_CONTROL_MASK))
3856 /* If the text widget isn't editable overall, or if the application
3857 * has turned off "accepts_tab", move the focus instead
3859 if (text_view->accepts_tab && text_view->editable)
3861 gtk_text_view_commit_text (text_view, "\t");
3865 gtk_text_view_move_focus (text_view,
3866 (event->state & GDK_SHIFT_MASK) ?
3867 GTK_DIR_TAB_BACKWARD: GTK_DIR_TAB_FORWARD);
3875 gtk_text_view_obscure_mouse_cursor (text_view);
3877 gtk_text_view_pend_cursor_blink (text_view);
3883 gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
3885 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3886 GtkTextMark *insert;
3889 if (text_view->layout == NULL || get_buffer (text_view) == NULL)
3892 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
3893 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3894 if (gtk_text_iter_can_insert (&iter, text_view->editable) &&
3895 gtk_im_context_filter_keypress (text_view->im_context, event))
3897 text_view->need_im_reset = TRUE;
3901 return GTK_WIDGET_CLASS (parent_class)->key_release_event (widget, event);
3905 gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
3907 GtkTextView *text_view;
3909 text_view = GTK_TEXT_VIEW (widget);
3911 gtk_widget_grab_focus (widget);
3913 if (event->window != text_view->text_window->bin_window)
3915 /* Remove selection if any. */
3916 gtk_text_view_unselect (text_view);
3922 if (event->button == 3 && (event->state & GDK_CONTROL_MASK) != 0)
3923 _gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer);
3924 else if (event->button == 3)
3925 gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout);
3928 if (event->type == GDK_BUTTON_PRESS)
3930 gtk_text_view_reset_im_context (text_view);
3932 if (event->button == 1)
3934 /* If we're in the selection, start a drag copy/move of the
3935 * selection; otherwise, start creating a new selection.
3938 GtkTextIter start, end;
3940 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3942 event->x + text_view->xoffset,
3943 event->y + text_view->yoffset);
3945 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
3947 gtk_text_iter_in_range (&iter, &start, &end))
3949 text_view->drag_start_x = event->x;
3950 text_view->drag_start_y = event->y;
3951 text_view->pending_place_cursor_button = event->button;
3955 gtk_text_view_start_selection_drag (text_view, &iter, event);
3960 else if (event->button == 2)
3964 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3966 event->x + text_view->xoffset,
3967 event->y + text_view->yoffset);
3969 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
3970 gtk_widget_get_clipboard (widget, GDK_SELECTION_PRIMARY),
3972 text_view->editable);
3975 else if (event->button == 3)
3977 gtk_text_view_do_popup (text_view, event);
3981 else if ((event->type == GDK_2BUTTON_PRESS ||
3982 event->type == GDK_3BUTTON_PRESS) &&
3987 gtk_text_view_end_selection_drag (text_view, event);
3989 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3991 event->x + text_view->xoffset,
3992 event->y + text_view->yoffset);
3994 gtk_text_view_start_selection_drag (text_view, &iter, event);
4002 gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
4004 GtkTextView *text_view;
4006 text_view = GTK_TEXT_VIEW (widget);
4008 if (event->window != text_view->text_window->bin_window)
4011 if (event->button == 1)
4013 if (text_view->drag_start_x >= 0)
4015 text_view->drag_start_x = -1;
4016 text_view->drag_start_y = -1;
4019 if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget), event))
4021 else if (text_view->pending_place_cursor_button == event->button)
4025 /* Unselect everything; we clicked inside selection, but
4026 * didn't move by the drag threshold, so just clear selection
4029 gtk_text_layout_get_iter_at_pixel (text_view->layout,
4031 event->x + text_view->xoffset,
4032 event->y + text_view->yoffset);
4034 gtk_text_buffer_place_cursor (get_buffer (text_view), &iter);
4036 text_view->pending_place_cursor_button = 0;
4046 keymap_direction_changed (GdkKeymap *keymap,
4047 GtkTextView *text_view)
4049 gtk_text_view_check_keymap_direction (text_view);
4053 gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
4055 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
4057 gtk_widget_queue_draw (widget);
4059 DV(g_print (G_STRLOC": focus_in_event\n"));
4061 if (text_view->cursor_visible && text_view->layout)
4063 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
4064 gtk_text_view_check_cursor_blink (text_view);
4067 g_signal_connect (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4068 "direction_changed",
4069 G_CALLBACK (keymap_direction_changed), text_view);
4070 gtk_text_view_check_keymap_direction (text_view);
4072 text_view->need_im_reset = TRUE;
4073 gtk_im_context_focus_in (GTK_TEXT_VIEW (widget)->im_context);
4079 gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event)
4081 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
4083 gtk_widget_queue_draw (widget);
4085 DV(g_print (G_STRLOC": focus_out_event\n"));
4087 if (text_view->cursor_visible && text_view->layout)
4089 gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
4090 gtk_text_view_check_cursor_blink (text_view);
4093 g_signal_handlers_disconnect_by_func (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4094 keymap_direction_changed,
4097 text_view->need_im_reset = TRUE;
4098 gtk_im_context_focus_out (GTK_TEXT_VIEW (widget)->im_context);
4104 gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event)
4106 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
4108 gtk_text_view_unobscure_mouse_cursor (text_view);
4110 if (event->window == text_view->text_window->bin_window &&
4111 text_view->drag_start_x >= 0)
4115 gdk_window_get_pointer (text_view->text_window->bin_window,
4118 if (gtk_drag_check_threshold (widget,
4119 text_view->drag_start_x,
4120 text_view->drag_start_y,
4124 gint buffer_x, buffer_y;
4126 gtk_text_view_window_to_buffer_coords (text_view,
4127 GTK_TEXT_WINDOW_TEXT,
4128 text_view->drag_start_x,
4129 text_view->drag_start_y,
4133 gtk_text_layout_get_iter_at_pixel (text_view->layout,
4135 buffer_x, buffer_y);
4137 gtk_text_view_start_selection_dnd (text_view, &iter, event);
4146 gtk_text_view_paint (GtkWidget *widget,
4148 GdkEventExpose *event)
4150 GtkTextView *text_view;
4151 GList *child_exposes;
4155 text_view = GTK_TEXT_VIEW (widget);
4157 g_return_if_fail (text_view->layout != NULL);
4158 g_return_if_fail (text_view->xoffset >= 0);
4159 g_return_if_fail (text_view->yoffset >= 0);
4161 while (text_view->first_validate_idle != 0)
4163 DV (g_print (G_STRLOC": first_validate_idle: %d\n",
4164 text_view->first_validate_idle));
4165 gtk_text_view_flush_first_validate (text_view);
4168 /* More regions could have become invalid in the above loop */
4169 updates = gdk_window_get_update_area (text_view->text_window->bin_window);
4174 gdk_region_get_clipbox (updates, &rect);
4176 gdk_rectangle_union (area, &rect, area);
4178 gdk_region_destroy (updates);
4181 if (!text_view->onscreen_validated)
4183 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.");
4184 g_assert_not_reached ();
4188 printf ("painting %d,%d %d x %d\n",
4190 area->width, area->height);
4193 child_exposes = NULL;
4194 gtk_text_layout_draw (text_view->layout,
4196 text_view->text_window->bin_window,
4201 area->width, area->height,
4204 tmp_list = child_exposes;
4205 while (tmp_list != NULL)
4207 GtkWidget *child = tmp_list->data;
4209 gtk_container_propagate_expose (GTK_CONTAINER (text_view),
4213 g_object_unref (child);
4215 tmp_list = tmp_list->next;
4218 g_list_free (child_exposes);
4222 gtk_text_view_expose_event (GtkWidget *widget, GdkEventExpose *event)
4226 if (event->window == gtk_text_view_get_window (GTK_TEXT_VIEW (widget),
4227 GTK_TEXT_WINDOW_TEXT))
4229 DV(g_print (">Exposed ("G_STRLOC")\n"));
4230 gtk_text_view_paint (widget, &event->area, event);
4233 if (event->window == widget->window)
4234 gtk_text_view_draw_focus (widget);
4236 /* Propagate exposes to all children not in the buffer. */
4237 tmp_list = GTK_TEXT_VIEW (widget)->children;
4238 while (tmp_list != NULL)
4240 GtkTextViewChild *vc = tmp_list->data;
4242 /* propagate_expose checks that event->window matches
4245 if (vc->type != GTK_TEXT_WINDOW_TEXT)
4246 gtk_container_propagate_expose (GTK_CONTAINER (widget),
4250 tmp_list = tmp_list->next;
4257 gtk_text_view_draw_focus (GtkWidget *widget)
4259 gboolean interior_focus;
4261 /* We clear the focus if we are in interior focus mode. */
4262 gtk_widget_style_get (widget,
4263 "interior_focus", &interior_focus,
4266 if (GTK_WIDGET_DRAWABLE (widget))
4268 if (GTK_WIDGET_HAS_FOCUS (widget) && !interior_focus)
4270 gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
4271 NULL, widget, "textview",
4273 widget->allocation.width,
4274 widget->allocation.height);
4278 gdk_window_clear (widget->window);
4284 gtk_text_view_focus (GtkWidget *widget,
4285 GtkDirectionType direction)
4287 GtkTextView *text_view;
4288 GtkContainer *container;
4291 text_view = GTK_TEXT_VIEW (widget);
4292 container = GTK_CONTAINER (widget);
4294 if (!gtk_widget_is_focus (widget) &&
4295 container->focus_child == NULL)
4297 gtk_widget_grab_focus (widget);
4303 * Unset CAN_FOCUS flag so that gtk_container_focus() allows
4304 * children to get the focus
4306 GTK_WIDGET_UNSET_FLAGS (widget, GTK_CAN_FOCUS);
4307 result = GTK_WIDGET_CLASS (parent_class)->focus (widget, direction);
4308 GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
4319 gtk_text_view_add (GtkContainer *container,
4322 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
4323 g_return_if_fail (GTK_IS_WIDGET (child));
4325 /* This is pretty random. */
4326 gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container),
4328 GTK_TEXT_WINDOW_WIDGET,
4333 gtk_text_view_remove (GtkContainer *container,
4337 GtkTextView *text_view;
4338 GtkTextViewChild *vc;
4340 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
4341 g_return_if_fail (GTK_IS_WIDGET (child));
4342 g_return_if_fail (child->parent == (GtkWidget*) container);
4344 text_view = GTK_TEXT_VIEW (container);
4347 iter = text_view->children;
4349 while (iter != NULL)
4353 if (vc->widget == child)
4356 iter = g_slist_next (iter);
4359 g_assert (iter != NULL); /* be sure we had the child in the list */
4361 text_view->children = g_slist_remove (text_view->children, vc);
4363 gtk_widget_unparent (vc->widget);
4365 text_view_child_free (vc);
4369 gtk_text_view_forall (GtkContainer *container,
4370 gboolean include_internals,
4371 GtkCallback callback,
4372 gpointer callback_data)
4375 GtkTextView *text_view;
4378 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
4379 g_return_if_fail (callback != NULL);
4381 text_view = GTK_TEXT_VIEW (container);
4383 copy = g_slist_copy (text_view->children);
4386 while (iter != NULL)
4388 GtkTextViewChild *vc = iter->data;
4390 (* callback) (vc->widget, callback_data);
4392 iter = g_slist_next (iter);
4395 g_slist_free (copy);
4398 #define CURSOR_ON_MULTIPLIER 0.66
4399 #define CURSOR_OFF_MULTIPLIER 0.34
4400 #define CURSOR_PEND_MULTIPLIER 1.0
4403 cursor_blinks (GtkTextView *text_view)
4405 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
4408 #ifdef DEBUG_VALIDATION_AND_SCROLLING
4411 if (gtk_debug_flags & GTK_DEBUG_UPDATES)
4414 g_object_get (settings, "gtk-cursor-blink", &blink, NULL);
4419 get_cursor_time (GtkTextView *text_view)
4421 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
4424 g_object_get (settings, "gtk-cursor-blink-time", &time, NULL);
4434 blink_cb (gpointer data)
4436 GtkTextView *text_view;
4439 GDK_THREADS_ENTER ();
4441 text_view = GTK_TEXT_VIEW (data);
4443 g_assert (text_view->layout);
4444 g_assert (GTK_WIDGET_HAS_FOCUS (text_view));
4445 g_assert (text_view->cursor_visible);
4447 visible = gtk_text_layout_get_cursor_visible (text_view->layout);
4450 text_view->blink_timeout = g_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
4454 text_view->blink_timeout = g_timeout_add (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER,
4458 gtk_text_layout_set_cursor_visible (text_view->layout,
4461 GDK_THREADS_LEAVE ();
4463 /* Remove ourselves */
4469 gtk_text_view_stop_cursor_blink (GtkTextView *text_view)
4471 if (text_view->blink_timeout)
4473 g_source_remove (text_view->blink_timeout);
4474 text_view->blink_timeout = 0;
4479 gtk_text_view_check_cursor_blink (GtkTextView *text_view)
4481 if (text_view->layout != NULL &&
4482 text_view->cursor_visible &&
4483 GTK_WIDGET_HAS_FOCUS (text_view))
4485 if (cursor_blinks (text_view))
4487 if (text_view->blink_timeout == 0)
4489 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
4491 text_view->blink_timeout = g_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
4497 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
4501 gtk_text_view_stop_cursor_blink (text_view);
4506 gtk_text_view_pend_cursor_blink(GtkTextView *text_view)
4508 if (text_view->layout != NULL &&
4509 text_view->cursor_visible &&
4510 GTK_WIDGET_HAS_FOCUS (text_view) &&
4511 cursor_blinks (text_view))
4513 if (text_view->blink_timeout != 0)
4515 g_source_remove (text_view->blink_timeout);
4516 text_view->blink_timeout = 0;
4519 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
4521 text_view->blink_timeout = g_timeout_add (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER,
4529 * Key binding handlers
4533 gtk_text_view_move_iter_by_lines (GtkTextView *text_view,
4534 GtkTextIter *newplace,
4539 gtk_text_layout_move_iter_to_previous_line (text_view->layout, newplace);
4545 gtk_text_layout_move_iter_to_next_line (text_view->layout, newplace);
4551 move_cursor (GtkTextView *text_view,
4552 const GtkTextIter *new_location,
4553 gboolean extend_selection)
4555 if (extend_selection)
4556 gtk_text_buffer_move_mark_by_name (get_buffer (text_view),
4560 gtk_text_buffer_place_cursor (get_buffer (text_view),
4565 gtk_text_view_move_cursor_internal (GtkTextView *text_view,
4566 GtkMovementStep step,
4568 gboolean extend_selection)
4571 GtkTextIter newplace;
4573 gint cursor_x_pos = 0;
4575 if (!text_view->cursor_visible)
4577 GtkScrollStep scroll_step;
4581 case GTK_MOVEMENT_LOGICAL_POSITIONS:
4582 case GTK_MOVEMENT_VISUAL_POSITIONS:
4583 case GTK_MOVEMENT_WORDS:
4584 scroll_step = GTK_SCROLL_HORIZONTAL_STEPS;
4586 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
4587 scroll_step = GTK_SCROLL_HORIZONTAL_ENDS;
4589 case GTK_MOVEMENT_DISPLAY_LINES:
4590 case GTK_MOVEMENT_PARAGRAPHS:
4591 case GTK_MOVEMENT_PARAGRAPH_ENDS:
4592 scroll_step = GTK_SCROLL_STEPS;
4594 case GTK_MOVEMENT_PAGES:
4595 scroll_step = GTK_SCROLL_PAGES;
4597 case GTK_MOVEMENT_HORIZONTAL_PAGES:
4598 scroll_step = GTK_SCROLL_HORIZONTAL_PAGES;
4600 case GTK_MOVEMENT_BUFFER_ENDS:
4601 scroll_step = GTK_SCROLL_ENDS;
4604 scroll_step = GTK_SCROLL_PAGES;
4608 gtk_text_view_move_viewport (text_view, scroll_step, count);
4613 gtk_text_view_reset_im_context (text_view);
4615 if (step == GTK_MOVEMENT_PAGES)
4617 gtk_text_view_scroll_pages (text_view, count, extend_selection);
4618 gtk_text_view_pend_cursor_blink (text_view);
4621 else if (step == GTK_MOVEMENT_HORIZONTAL_PAGES)
4623 gtk_text_view_scroll_hpages (text_view, count, extend_selection);
4624 gtk_text_view_pend_cursor_blink (text_view);
4628 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
4629 gtk_text_buffer_get_mark (get_buffer (text_view),
4633 if (step == GTK_MOVEMENT_DISPLAY_LINES)
4634 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, NULL);
4638 case GTK_MOVEMENT_LOGICAL_POSITIONS:
4639 gtk_text_iter_forward_visible_cursor_positions (&newplace, count);
4642 case GTK_MOVEMENT_VISUAL_POSITIONS:
4643 gtk_text_layout_move_iter_visually (text_view->layout,
4647 case GTK_MOVEMENT_WORDS:
4649 gtk_text_iter_backward_visible_word_starts (&newplace, -count);
4652 if (!gtk_text_iter_forward_visible_word_ends (&newplace, count))
4653 gtk_text_iter_forward_to_end (&newplace);
4657 case GTK_MOVEMENT_DISPLAY_LINES:
4658 gtk_text_view_move_iter_by_lines (text_view, &newplace, count);
4659 gtk_text_layout_move_iter_to_x (text_view->layout, &newplace, cursor_x_pos);
4662 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
4664 gtk_text_view_move_iter_by_lines (text_view, &newplace, --count);
4665 else if (count < -1)
4666 gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count);
4669 gtk_text_layout_move_iter_to_line_end (text_view->layout, &newplace, count);
4672 case GTK_MOVEMENT_PARAGRAPHS:
4675 if (!gtk_text_iter_ends_line (&newplace))
4677 gtk_text_iter_forward_to_line_end (&newplace);
4680 gtk_text_iter_forward_lines (&newplace, count);
4681 gtk_text_iter_forward_to_line_end (&newplace);
4685 if (gtk_text_iter_get_line_offset (&newplace) > 0)
4687 gtk_text_iter_set_line_offset (&newplace, 0);
4690 gtk_text_iter_forward_lines (&newplace, count);
4691 gtk_text_iter_set_line_offset (&newplace, 0);
4695 case GTK_MOVEMENT_PARAGRAPH_ENDS:
4698 if (!gtk_text_iter_ends_line (&newplace))
4699 gtk_text_iter_forward_to_line_end (&newplace);
4703 gtk_text_iter_set_line_offset (&newplace, 0);
4707 case GTK_MOVEMENT_BUFFER_ENDS:
4709 gtk_text_buffer_get_end_iter (get_buffer (text_view), &newplace);
4711 gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0);
4718 /* call move_cursor() even if the cursor hasn't moved, since it
4719 cancels the selection
4721 move_cursor (text_view, &newplace, extend_selection);
4723 if (!gtk_text_iter_equal (&insert, &newplace))
4725 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4726 gtk_text_view_scroll_mark_onscreen (text_view,
4727 gtk_text_buffer_get_mark (get_buffer (text_view),
4730 if (step == GTK_MOVEMENT_DISPLAY_LINES)
4732 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
4736 gtk_text_view_pend_cursor_blink (text_view);
4740 gtk_text_view_move_cursor (GtkTextView *text_view,
4741 GtkMovementStep step,
4743 gboolean extend_selection)
4745 gtk_text_view_move_cursor_internal (text_view, step, count, extend_selection);
4749 gtk_text_view_page_horizontally (GtkTextView *text_view,
4751 gboolean extend_selection)
4753 gtk_text_view_move_cursor_internal (text_view, GTK_MOVEMENT_HORIZONTAL_PAGES,
4754 count, extend_selection);
4759 gtk_text_view_move_viewport (GtkTextView *text_view,
4763 GtkAdjustment *adjustment;
4768 case GTK_SCROLL_STEPS:
4769 case GTK_SCROLL_PAGES:
4770 case GTK_SCROLL_ENDS:
4771 adjustment = get_vadjustment (text_view);
4773 case GTK_SCROLL_HORIZONTAL_STEPS:
4774 case GTK_SCROLL_HORIZONTAL_PAGES:
4775 case GTK_SCROLL_HORIZONTAL_ENDS:
4776 adjustment = get_hadjustment (text_view);
4779 adjustment = get_vadjustment (text_view);
4785 case GTK_SCROLL_STEPS:
4786 case GTK_SCROLL_HORIZONTAL_STEPS:
4787 increment = adjustment->step_increment;
4789 case GTK_SCROLL_PAGES:
4790 case GTK_SCROLL_HORIZONTAL_PAGES:
4791 increment = adjustment->page_increment;
4793 case GTK_SCROLL_ENDS:
4794 case GTK_SCROLL_HORIZONTAL_ENDS:
4795 increment = adjustment->upper - adjustment->lower;
4802 set_adjustment_clamped (adjustment, adjustment->value + count * increment);
4806 gtk_text_view_set_anchor (GtkTextView *text_view)
4810 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
4811 gtk_text_buffer_get_mark (get_buffer (text_view),
4814 gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
4818 gtk_text_view_scroll_pages (GtkTextView *text_view,
4820 gboolean extend_selection)
4825 gint cursor_x_pos, cursor_y_pos;
4826 GtkTextIter new_insert;
4830 g_return_if_fail (text_view->vadjustment != NULL);
4832 adj = text_view->vadjustment;
4834 /* Make sure we start from the current cursor position, even
4835 * if it was offscreen, but don't queue more scrolls if we're
4838 if (text_view->pending_scroll)
4839 cancel_pending_scroll (text_view);
4841 gtk_text_view_scroll_mark_onscreen (text_view,
4842 gtk_text_buffer_get_mark (get_buffer (text_view),
4845 /* Validate the region that will be brought into view by the cursor motion
4849 gtk_text_view_get_first_para_iter (text_view, &anchor);
4850 y0 = adj->page_size;
4851 y1 = adj->page_size + count * adj->page_increment;
4855 gtk_text_view_get_first_para_iter (text_view, &anchor);
4856 y0 = count * adj->page_increment + adj->page_size;
4860 gtk_text_layout_validate_yrange (text_view->layout, &anchor, y0, y1);
4861 /* FIXME do we need to update the adjustment ranges here? */
4863 if (count < 0 && adj->value <= (adj->lower + 1e-12))
4865 /* already at top, just be sure we are at offset 0 */
4866 gtk_text_buffer_get_start_iter (get_buffer (text_view), &new_insert);
4867 move_cursor (text_view, &new_insert, extend_selection);
4869 else if (count > 0 && adj->value >= (adj->upper - adj->page_size - 1e-12))
4871 /* already at bottom, just be sure we are at the end */
4872 gtk_text_buffer_get_end_iter (get_buffer (text_view), &new_insert);
4873 move_cursor (text_view, &new_insert, extend_selection);
4877 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
4879 newval = adj->value;
4880 oldval = adj->value;
4882 newval += count * adj->page_increment;
4884 set_adjustment_clamped (adj, newval);
4885 cursor_y_pos += adj->value - oldval;
4887 gtk_text_layout_get_iter_at_pixel (text_view->layout, &new_insert, cursor_x_pos, cursor_y_pos);
4888 clamp_iter_onscreen (text_view, &new_insert);
4889 move_cursor (text_view, &new_insert, extend_selection);
4891 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
4894 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
4895 * only guarantees 1 pixel onscreen.
4897 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4898 gtk_text_view_scroll_mark_onscreen (text_view,
4899 gtk_text_buffer_get_mark (get_buffer (text_view),
4904 gtk_text_view_scroll_hpages (GtkTextView *text_view,
4906 gboolean extend_selection)
4911 gint cursor_x_pos, cursor_y_pos;
4912 GtkTextIter new_insert;
4915 g_return_if_fail (text_view->hadjustment != NULL);
4917 adj = text_view->hadjustment;
4919 /* Make sure we start from the current cursor position, even
4920 * if it was offscreen, but don't queue more scrolls if we're
4923 if (text_view->pending_scroll)
4924 cancel_pending_scroll (text_view);
4926 gtk_text_view_scroll_mark_onscreen (text_view,
4927 gtk_text_buffer_get_mark (get_buffer (text_view),
4930 /* Validate the line that we're moving within.
4932 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
4934 gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
4935 gtk_text_layout_get_line_yrange (text_view->layout, &new_insert, &y, &height);
4936 gtk_text_layout_validate_yrange (text_view->layout, &new_insert, y, y + height);
4937 /* FIXME do we need to update the adjustment ranges here? */
4939 if (count < 0 && adj->value <= (adj->lower + 1e-12))
4941 /* already at far left, just be sure we are at offset 0 */
4942 gtk_text_iter_set_line_offset (&new_insert, 0);
4943 move_cursor (text_view, &new_insert, extend_selection);
4945 else if (count > 0 && adj->value >= (adj->upper - adj->page_size - 1e-12))
4947 /* already at far right, just be sure we are at the end */
4948 gtk_text_iter_forward_to_line_end (&new_insert);
4949 move_cursor (text_view, &new_insert, extend_selection);
4953 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
4955 newval = adj->value;
4956 oldval = adj->value;
4958 newval += count * adj->page_increment;
4960 set_adjustment_clamped (adj, newval);
4961 cursor_x_pos += adj->value - oldval;
4963 gtk_text_layout_get_iter_at_pixel (text_view->layout, &new_insert, cursor_x_pos, cursor_y_pos);
4964 clamp_iter_onscreen (text_view, &new_insert);
4965 move_cursor (text_view, &new_insert, extend_selection);
4967 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
4970 /* FIXME for lines shorter than the overall widget width, this results in a
4971 * "bounce" effect as we scroll to the right of the widget, then scroll
4972 * back to get the end of the line onscreen.
4973 * http://bugzilla.gnome.org/show_bug.cgi?id=68963
4976 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
4977 * only guarantees 1 pixel onscreen.
4979 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4980 gtk_text_view_scroll_mark_onscreen (text_view,
4981 gtk_text_buffer_get_mark (get_buffer (text_view),
4986 whitespace (gunichar ch, gpointer user_data)
4988 return (ch == ' ' || ch == '\t');
4992 not_whitespace (gunichar ch, gpointer user_data)
4994 return !whitespace (ch, user_data);
4998 find_whitepace_region (const GtkTextIter *center,
4999 GtkTextIter *start, GtkTextIter *end)
5004 if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL))
5005 gtk_text_iter_forward_char (start); /* we want the first whitespace... */
5006 if (whitespace (gtk_text_iter_get_char (end), NULL))
5007 gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL);
5009 return !gtk_text_iter_equal (start, end);
5013 gtk_text_view_insert_at_cursor (GtkTextView *text_view,
5016 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
5017 text_view->editable);
5021 gtk_text_view_delete_from_cursor (GtkTextView *text_view,
5028 gboolean leave_one = FALSE;
5030 gtk_text_view_reset_im_context (text_view);
5032 if (type == GTK_DELETE_CHARS)
5034 /* Char delete deletes the selection, if one exists */
5035 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5036 text_view->editable))
5040 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5042 gtk_text_buffer_get_mark (get_buffer (text_view),
5050 case GTK_DELETE_CHARS:
5051 gtk_text_iter_forward_cursor_positions (&end, count);
5054 case GTK_DELETE_WORD_ENDS:
5056 gtk_text_iter_forward_word_ends (&end, count);
5058 gtk_text_iter_backward_word_starts (&start, 0 - count);
5061 case GTK_DELETE_WORDS:
5064 case GTK_DELETE_DISPLAY_LINE_ENDS:
5067 case GTK_DELETE_DISPLAY_LINES:
5070 case GTK_DELETE_PARAGRAPH_ENDS:
5071 /* If we're already at a newline, we need to
5072 * simply delete that newline, instead of
5073 * moving to the next one.
5075 if (gtk_text_iter_ends_line (&end))
5077 gtk_text_iter_forward_line (&end);
5083 if (!gtk_text_iter_forward_to_line_end (&end))
5089 /* FIXME figure out what a negative count means
5093 case GTK_DELETE_PARAGRAPHS:
5096 gtk_text_iter_set_line_offset (&start, 0);
5097 gtk_text_iter_forward_to_line_end (&end);
5099 /* Do the lines beyond the first. */
5102 gtk_text_iter_forward_to_line_end (&end);
5108 /* FIXME negative count? */
5112 case GTK_DELETE_WHITESPACE:
5114 find_whitepace_region (&insert, &start, &end);
5122 if (!gtk_text_iter_equal (&start, &end))
5124 gtk_text_buffer_begin_user_action (get_buffer (text_view));
5126 if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end,
5127 text_view->editable))
5130 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view),
5132 text_view->editable);
5135 gtk_text_buffer_end_user_action (get_buffer (text_view));
5137 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5138 gtk_text_view_scroll_mark_onscreen (text_view,
5139 gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
5144 gtk_text_view_cut_clipboard (GtkTextView *text_view)
5146 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
5147 GDK_SELECTION_CLIPBOARD);
5149 gtk_text_buffer_cut_clipboard (get_buffer (text_view),
5151 text_view->editable);
5152 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5153 gtk_text_view_scroll_mark_onscreen (text_view,
5154 gtk_text_buffer_get_mark (get_buffer (text_view),
5159 gtk_text_view_copy_clipboard (GtkTextView *text_view)
5161 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
5162 GDK_SELECTION_CLIPBOARD);
5164 gtk_text_buffer_copy_clipboard (get_buffer (text_view),
5166 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5167 gtk_text_view_scroll_mark_onscreen (text_view,
5168 gtk_text_buffer_get_mark (get_buffer (text_view),
5173 gtk_text_view_paste_clipboard (GtkTextView *text_view)
5175 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
5176 GDK_SELECTION_CLIPBOARD);
5178 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
5181 text_view->editable);
5182 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5183 gtk_text_view_scroll_mark_onscreen (text_view,
5184 gtk_text_buffer_get_mark (get_buffer (text_view),
5189 gtk_text_view_toggle_overwrite (GtkTextView *text_view)
5191 text_view->overwrite_mode = !text_view->overwrite_mode;
5192 g_object_notify (G_OBJECT (text_view), "overwrite");
5196 * gtk_text_view_get_overwrite:
5197 * @text_view: a #GtkTextView
5199 * Returns whether the #GtkTextView is in overwrite mode or not.
5201 * Return value: whether @text_view is in overwrite mode or not.
5206 gtk_text_view_get_overwrite (GtkTextView *text_view)
5208 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
5210 return text_view->overwrite_mode;
5214 * gtk_text_view_set_overwrite:
5215 * @text_view: a #GtkTextView
5216 * @overwrite: %TRUE to turn on overwrite mode, %FALSE to turn it off
5218 * Changes the #GtkTextView overwrite mode.
5223 gtk_text_view_set_overwrite (GtkTextView *text_view,
5226 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
5227 overwrite = overwrite != FALSE;
5229 if (text_view->overwrite_mode != overwrite)
5231 text_view->overwrite_mode = overwrite;
5233 g_object_notify (G_OBJECT (text_view), "overwrite");
5238 * gtk_text_view_set_accepts_tab:
5239 * @text_view: A #GtkTextView
5240 * @accepts_tab: %TRUE if pressing the Tab key should insert a tab character, %FALSE, if pressing the Tab key should move the keyboard focus.
5242 * Sets the behavior of the text widget when the Tab key is pressed. If @accepts_tab
5243 * is %TRUE a tab character is inserted. If @accepts_tab is %FALSE the keyboard focus
5244 * is moved to the next widget in the focus chain.
5249 gtk_text_view_set_accepts_tab (GtkTextView *text_view,
5250 gboolean accepts_tab)
5252 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
5254 accepts_tab = accepts_tab != FALSE;
5256 if (text_view->accepts_tab != accepts_tab)
5258 text_view->accepts_tab = accepts_tab;
5260 g_object_notify (G_OBJECT (text_view), "accepts_tab");
5265 * gtk_text_view_get_accepts_tab:
5266 * @text_view: A #GtkTextView
5268 * Returns whether pressing the Tab key inserts a tab characters.
5269 * gtk_text_view_set_accepts_tab().
5271 * Return value: %TRUE if pressing the Tab key inserts a tab character, %FALSE if pressing the Tab key moves the keyboard focus.
5276 gtk_text_view_get_accepts_tab (GtkTextView *text_view)
5278 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
5280 return text_view->accepts_tab;
5284 gtk_text_view_move_focus (GtkTextView *text_view,
5285 GtkDirectionType direction_type)
5287 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (text_view));
5289 if (!GTK_WIDGET_TOPLEVEL (toplevel))
5292 /* Propagate to toplevel */
5293 g_signal_emit_by_name (toplevel, "move_focus", direction_type);
5301 gtk_text_view_unselect (GtkTextView *text_view)
5305 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5307 gtk_text_buffer_get_mark (get_buffer (text_view),
5310 gtk_text_buffer_move_mark (get_buffer (text_view),
5311 gtk_text_buffer_get_mark (get_buffer (text_view),
5317 move_mark_to_pointer_and_scroll (GtkTextView *text_view,
5318 const gchar *mark_name)
5321 GdkModifierType state;
5322 GtkTextIter newplace;
5324 /* DV(g_print (G_STRLOC": begin\n")); */
5326 gdk_window_get_pointer (text_view->text_window->bin_window,
5329 /* DV(g_print (G_STRLOC": get iter at pixel\n"); */
5330 gtk_text_layout_get_iter_at_pixel (text_view->layout,
5332 x + text_view->xoffset,
5333 y + text_view->yoffset);
5337 gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
5339 /* This may invalidate the layout */
5340 DV(g_print (G_STRLOC": move mark\n"));
5341 gtk_text_buffer_move_mark (get_buffer (text_view),
5345 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5346 gtk_text_view_scroll_mark_onscreen (text_view, mark);
5349 DV (g_print ("first validate idle leaving %s is %d\n",
5350 G_STRLOC, text_view->first_validate_idle));
5354 selection_scan_timeout (gpointer data)
5356 GtkTextView *text_view;
5358 GDK_THREADS_ENTER ();
5360 text_view = GTK_TEXT_VIEW (data);
5362 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
5363 gtk_text_view_scroll_mark_onscreen (text_view,
5364 gtk_text_buffer_get_mark (get_buffer (text_view),
5367 GDK_THREADS_LEAVE ();
5369 return TRUE; /* remain installed. */
5372 #define DND_SCROLL_MARGIN 0.20
5375 drag_scan_timeout (gpointer data)
5377 GtkTextView *text_view;
5379 GdkModifierType state;
5380 GtkTextIter newplace;
5382 GDK_THREADS_ENTER ();
5384 text_view = GTK_TEXT_VIEW (data);
5386 gdk_window_get_pointer (text_view->text_window->bin_window,
5389 gtk_text_layout_get_iter_at_pixel (text_view->layout,
5391 x + text_view->xoffset,
5392 y + text_view->yoffset);
5394 gtk_text_buffer_move_mark (get_buffer (text_view),
5395 text_view->dnd_mark,
5398 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5399 gtk_text_view_scroll_to_mark (text_view,
5400 text_view->dnd_mark,
5401 DND_SCROLL_MARGIN, FALSE, 0.0, 0.0);
5403 GDK_THREADS_LEAVE ();
5413 } SelectionGranularity;
5416 * Move @start and @end to the boundaries of the selection unit (indicated by
5417 * @granularity) which contained @start initially. Return wether @start was
5418 * contained in a selection unit at all (which may not be the case for words).
5421 extend_selection (GtkTextView *text_view,
5422 SelectionGranularity granularity,
5426 gboolean extend = TRUE;
5430 if (granularity == SELECT_WORDS)
5432 if (gtk_text_iter_inside_word (start))
5434 if (!gtk_text_iter_starts_word (start))
5435 gtk_text_iter_backward_visible_word_start (start);
5437 if (!gtk_text_iter_ends_word (end))
5439 if (!gtk_text_iter_forward_visible_word_end (end))
5440 gtk_text_iter_forward_to_end (end);
5446 else if (granularity == SELECT_LINES)
5448 if (gtk_text_view_starts_display_line (text_view, start))
5450 /* If on a display line boundary, we assume the user
5451 * clicked off the end of a line and we therefore select
5452 * the line before the boundary.
5454 gtk_text_view_backward_display_line_start (text_view, start);
5458 /* start isn't on the start of a line, so we move it to the
5459 * start, and move end to the end unless it's already there.
5461 gtk_text_view_backward_display_line_start (text_view, start);
5463 if (!gtk_text_view_starts_display_line (text_view, end))
5464 gtk_text_view_forward_display_line_end (text_view, end);
5472 selection_motion_event_handler (GtkTextView *text_view, GdkEventMotion *event, gpointer data)
5474 SelectionGranularity granularity = GPOINTER_TO_INT (data);
5476 if (granularity == SELECT_CHARACTERS)
5478 move_mark_to_pointer_and_scroll (text_view, "insert");
5483 GdkModifierType state;
5484 GtkTextIter start, end;
5485 GtkTextIter old_start, old_end;
5486 GtkTextIter ins, bound;
5487 GtkTextBuffer *buffer;
5489 buffer = get_buffer (text_view);
5491 gdk_window_get_pointer (text_view->text_window->bin_window,
5494 gtk_text_layout_get_iter_at_pixel (text_view->layout,
5496 event->x + text_view->xoffset,
5497 event->y + text_view->yoffset);
5499 if (extend_selection (text_view, granularity, &start, &end))
5501 /* Extend selection */
5502 gtk_text_buffer_get_iter_at_mark (buffer,
5504 gtk_text_buffer_get_insert (buffer));
5505 gtk_text_buffer_get_iter_at_mark (buffer,
5507 gtk_text_buffer_get_selection_bound (buffer));
5509 if (gtk_text_iter_compare (&ins, &bound) < 0)
5520 if (gtk_text_iter_compare (&start, &old_start) < 0)
5522 /* newly selected unit before the current selection */
5526 else if (gtk_text_iter_compare (&old_end, &end) < 0)
5528 /* newly selected unit after the current selection */
5532 else if (gtk_text_iter_equal (&ins, &old_start))
5534 /* newly selected unit inside the current selection
5536 if (!gtk_text_iter_equal (&ins, &start))
5541 /* newly selected unit inside the current selection
5543 if (!gtk_text_iter_equal (&ins, &end))
5547 gtk_text_buffer_select_range (buffer, &ins, &bound);
5550 gtk_text_view_scroll_mark_onscreen (text_view,
5551 gtk_text_buffer_get_mark (buffer,
5556 /* If we had to scroll offscreen, insert a timeout to do so
5557 * again. Note that in the timeout, even if the mouse doesn't
5558 * move, due to this scroll xoffset/yoffset will have changed
5559 * and we'll need to scroll again.
5561 if (text_view->scroll_timeout != 0) /* reset on every motion event */
5562 g_source_remove (text_view->scroll_timeout);
5564 text_view->scroll_timeout =
5565 g_timeout_add (50, selection_scan_timeout, text_view);
5571 gtk_text_view_start_selection_drag (GtkTextView *text_view,
5572 const GtkTextIter *iter,
5573 GdkEventButton *button)
5575 GtkTextIter start, end;
5576 GtkTextBuffer *buffer;
5577 SelectionGranularity granularity;
5579 g_return_if_fail (text_view->selection_drag_handler == 0);
5581 if (button->type == GDK_2BUTTON_PRESS)
5582 granularity = SELECT_WORDS;
5583 else if (button->type == GDK_3BUTTON_PRESS)
5584 granularity = SELECT_LINES;
5586 granularity = SELECT_CHARACTERS;
5588 gtk_grab_add (GTK_WIDGET (text_view));
5590 buffer = get_buffer (text_view);
5594 extend_selection (text_view, granularity, &start, &end);
5596 if (button->state & GDK_SHIFT_MASK)
5598 /* Extend selection */
5599 GtkTextIter old_start, old_end;
5601 gtk_text_buffer_get_selection_bounds (buffer, &old_start, &old_end);
5603 gtk_text_iter_order (&start, &old_start);
5604 gtk_text_iter_order (&old_end, &end);
5606 /* Now start is the first of the starts, and end is the
5611 gtk_text_buffer_select_range (buffer, &end, &start);
5613 text_view->selection_drag_handler = g_signal_connect (text_view,
5614 "motion_notify_event",
5615 G_CALLBACK (selection_motion_event_handler),
5616 GINT_TO_POINTER (granularity));
5619 /* returns whether we were really dragging */
5621 gtk_text_view_end_selection_drag (GtkTextView *text_view, GdkEventButton *event)
5623 if (text_view->selection_drag_handler == 0)
5626 g_signal_handler_disconnect (text_view, text_view->selection_drag_handler);
5627 text_view->selection_drag_handler = 0;
5629 if (text_view->scroll_timeout != 0)
5631 g_source_remove (text_view->scroll_timeout);
5632 text_view->scroll_timeout = 0;
5635 gtk_grab_remove (GTK_WIDGET (text_view));
5645 gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
5646 GtkTextAttributes *values,
5649 values->appearance.bg_color = style->base[GTK_STATE_NORMAL];
5650 values->appearance.fg_color = style->text[GTK_STATE_NORMAL];
5653 pango_font_description_free (values->font);
5655 values->font = pango_font_description_copy (style->font_desc);
5659 gtk_text_view_check_keymap_direction (GtkTextView *text_view)
5661 if (text_view->layout)
5663 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5664 GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)));
5665 GtkTextDirection new_cursor_dir;
5666 GtkTextDirection new_keyboard_dir;
5667 gboolean split_cursor;
5669 g_object_get (settings,
5670 "gtk-split-cursor", &split_cursor,
5673 if (gdk_keymap_get_direction (keymap) == PANGO_DIRECTION_LTR)
5674 new_keyboard_dir = GTK_TEXT_DIR_LTR;
5676 new_keyboard_dir = GTK_TEXT_DIR_RTL;
5679 new_cursor_dir = GTK_TEXT_DIR_NONE;
5681 new_cursor_dir = new_keyboard_dir;
5683 gtk_text_layout_set_cursor_direction (text_view->layout, new_cursor_dir);
5684 gtk_text_layout_set_keyboard_direction (text_view->layout, new_keyboard_dir);
5689 gtk_text_view_ensure_layout (GtkTextView *text_view)
5693 widget = GTK_WIDGET (text_view);
5695 if (text_view->layout == NULL)
5697 GtkTextAttributes *style;
5698 PangoContext *ltr_context, *rtl_context;
5701 DV(g_print(G_STRLOC"\n"));
5703 text_view->layout = gtk_text_layout_new ();
5705 g_signal_connect (text_view->layout,
5707 G_CALLBACK (invalidated_handler),
5710 g_signal_connect (text_view->layout,
5712 G_CALLBACK (changed_handler),
5715 g_signal_connect (text_view->layout,
5717 G_CALLBACK (gtk_text_view_child_allocated),
5720 if (get_buffer (text_view))
5721 gtk_text_layout_set_buffer (text_view->layout, get_buffer (text_view));
5723 if ((GTK_WIDGET_HAS_FOCUS (text_view) && text_view->cursor_visible))
5724 gtk_text_view_pend_cursor_blink (text_view);
5726 gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
5728 ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
5729 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
5730 rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
5731 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
5733 gtk_text_layout_set_contexts (text_view->layout, ltr_context, rtl_context);
5735 g_object_unref (ltr_context);
5736 g_object_unref (rtl_context);
5738 gtk_text_view_check_keymap_direction (text_view);
5740 style = gtk_text_attributes_new ();
5742 gtk_widget_ensure_style (widget);
5743 gtk_text_view_set_attributes_from_style (text_view,
5744 style, widget->style);
5746 style->pixels_above_lines = text_view->pixels_above_lines;
5747 style->pixels_below_lines = text_view->pixels_below_lines;
5748 style->pixels_inside_wrap = text_view->pixels_inside_wrap;
5749 style->left_margin = text_view->left_margin;
5750 style->right_margin = text_view->right_margin;
5751 style->indent = text_view->indent;
5752 style->tabs = text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
5754 style->wrap_mode = text_view->wrap_mode;
5755 style->justification = text_view->justify;
5756 style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view));
5758 gtk_text_layout_set_default_style (text_view->layout, style);
5760 gtk_text_attributes_unref (style);
5762 /* Set layout for all anchored children */
5764 tmp_list = text_view->children;
5765 while (tmp_list != NULL)
5767 GtkTextViewChild *vc = tmp_list->data;
5771 gtk_text_anchored_child_set_layout (vc->widget,
5773 /* vc may now be invalid! */
5776 tmp_list = g_slist_next (tmp_list);
5779 gtk_text_view_invalidate (text_view);
5784 * gtk_text_view_get_default_attributes:
5785 * @text_view: a #GtkTextView
5787 * Obtains a copy of the default text attributes. These are the
5788 * attributes used for text unless a tag overrides them.
5789 * You'd typically pass the default attributes in to
5790 * gtk_text_iter_get_attributes() in order to get the
5791 * attributes in effect at a given text position.
5793 * The return value is a copy owned by the caller of this function,
5794 * and should be freed.
5796 * Return value: a new #GtkTextAttributes
5799 gtk_text_view_get_default_attributes (GtkTextView *text_view)
5801 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
5803 gtk_text_view_ensure_layout (text_view);
5805 return gtk_text_attributes_copy (text_view->layout->default_style);
5809 gtk_text_view_destroy_layout (GtkTextView *text_view)
5811 if (text_view->layout)
5815 gtk_text_view_remove_validate_idles (text_view);
5817 g_signal_handlers_disconnect_by_func (text_view->layout,
5818 invalidated_handler,
5820 g_signal_handlers_disconnect_by_func (text_view->layout,
5824 /* Remove layout from all anchored children */
5825 tmp_list = text_view->children;
5826 while (tmp_list != NULL)
5828 GtkTextViewChild *vc = tmp_list->data;
5832 gtk_text_anchored_child_set_layout (vc->widget, NULL);
5833 /* vc may now be invalid! */
5836 tmp_list = g_slist_next (tmp_list);
5839 gtk_text_view_stop_cursor_blink (text_view);
5840 gtk_text_view_end_selection_drag (text_view, NULL);
5842 g_object_unref (text_view->layout);
5843 text_view->layout = NULL;
5848 gtk_text_view_reset_im_context (GtkTextView *text_view)
5850 if (text_view->need_im_reset)
5852 text_view->need_im_reset = FALSE;
5853 gtk_im_context_reset (text_view->im_context);
5862 gtk_text_view_start_selection_dnd (GtkTextView *text_view,
5863 const GtkTextIter *iter,
5864 GdkEventMotion *event)
5866 GdkDragContext *context;
5867 GtkTargetList *target_list;
5869 text_view->drag_start_x = -1;
5870 text_view->drag_start_y = -1;
5871 text_view->pending_place_cursor_button = 0;
5873 target_list = gtk_target_list_new (target_table,
5874 G_N_ELEMENTS (target_table));
5876 context = gtk_drag_begin (GTK_WIDGET (text_view), target_list,
5877 GDK_ACTION_COPY | GDK_ACTION_MOVE,
5878 1, (GdkEvent*)event);
5880 gtk_target_list_unref (target_list);
5882 gtk_drag_set_icon_default (context);
5886 gtk_text_view_drag_begin (GtkWidget *widget,
5887 GdkDragContext *context)
5893 gtk_text_view_drag_end (GtkWidget *widget,
5894 GdkDragContext *context)
5896 GtkTextView *text_view;
5898 text_view = GTK_TEXT_VIEW (widget);
5902 gtk_text_view_drag_data_get (GtkWidget *widget,
5903 GdkDragContext *context,
5904 GtkSelectionData *selection_data,
5908 GtkTextView *text_view;
5910 text_view = GTK_TEXT_VIEW (widget);
5912 if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
5914 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
5916 gtk_selection_data_set (selection_data,
5917 gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE),
5930 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
5933 /* Extract the selected text */
5934 str = gtk_text_iter_get_visible_text (&start, &end);
5939 gtk_selection_data_set_text (selection_data, str, -1);
5946 gtk_text_view_drag_data_delete (GtkWidget *widget,
5947 GdkDragContext *context)
5949 GtkTextView *text_view;
5951 text_view = GTK_TEXT_VIEW (widget);
5953 gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->buffer,
5954 TRUE, GTK_TEXT_VIEW (widget)->editable);
5958 gtk_text_view_drag_leave (GtkWidget *widget,
5959 GdkDragContext *context,
5962 GtkTextView *text_view;
5964 text_view = GTK_TEXT_VIEW (widget);
5966 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
5968 if (text_view->scroll_timeout != 0)
5969 g_source_remove (text_view->scroll_timeout);
5971 text_view->scroll_timeout = 0;
5975 gtk_text_view_drag_motion (GtkWidget *widget,
5976 GdkDragContext *context,
5981 GtkTextIter newplace;
5982 GtkTextView *text_view;
5985 GdkRectangle target_rect;
5987 GdkDragAction suggested_action = 0;
5989 text_view = GTK_TEXT_VIEW (widget);
5991 target_rect = text_view->text_window->allocation;
5993 if (x < target_rect.x ||
5994 y < target_rect.y ||
5995 x > (target_rect.x + target_rect.width) ||
5996 y > (target_rect.y + target_rect.height))
5997 return FALSE; /* outside the text window, allow parent widgets to handle event */
5999 gtk_text_view_window_to_buffer_coords (text_view,
6000 GTK_TEXT_WINDOW_WIDGET,
6004 gtk_text_layout_get_iter_at_pixel (text_view->layout,
6008 if (gtk_drag_dest_find_target (widget, context,
6009 gtk_drag_dest_get_target_list (widget)) == GDK_NONE)
6011 /* can't accept any of the offered targets */
6013 else if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
6015 gtk_text_iter_compare (&newplace, &start) >= 0 &&
6016 gtk_text_iter_compare (&newplace, &end) <= 0)
6018 /* We're inside the selection. */
6022 if (gtk_text_iter_can_insert (&newplace, text_view->editable))
6024 GtkWidget *source_widget;
6026 suggested_action = context->suggested_action;
6028 source_widget = gtk_drag_get_source_widget (context);
6030 if (source_widget == widget)
6032 /* Default to MOVE, unless the user has
6033 * pressed ctrl or alt to affect available actions
6035 if ((context->actions & GDK_ACTION_MOVE) != 0)
6036 suggested_action = GDK_ACTION_MOVE;
6041 /* Can't drop here. */
6045 if (suggested_action != 0)
6047 gtk_text_mark_set_visible (text_view->dnd_mark,
6048 text_view->cursor_visible);
6050 gdk_drag_status (context, suggested_action, time);
6054 gdk_drag_status (context, 0, time);
6055 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
6058 gtk_text_buffer_move_mark (get_buffer (text_view),
6059 text_view->dnd_mark,
6062 DV(g_print (G_STRLOC": scrolling to mark\n"));
6063 gtk_text_view_scroll_to_mark (text_view,
6064 text_view->dnd_mark,
6065 DND_SCROLL_MARGIN, FALSE, 0.0, 0.0);
6067 if (text_view->scroll_timeout != 0) /* reset on every motion event */
6068 g_source_remove (text_view->scroll_timeout);
6070 text_view->scroll_timeout =
6071 g_timeout_add (50, drag_scan_timeout, text_view);
6073 /* TRUE return means don't propagate the drag motion to parent
6074 * widgets that may also be drop sites.
6080 gtk_text_view_drag_drop (GtkWidget *widget,
6081 GdkDragContext *context,
6086 GtkTextView *text_view;
6087 GtkTextIter drop_point;
6088 GdkAtom target = GDK_NONE;
6090 text_view = GTK_TEXT_VIEW (widget);
6092 if (text_view->scroll_timeout != 0)
6093 g_source_remove (text_view->scroll_timeout);
6095 text_view->scroll_timeout = 0;
6097 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
6099 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
6101 text_view->dnd_mark);
6103 if (gtk_text_iter_can_insert (&drop_point, text_view->editable))
6104 target = gtk_drag_dest_find_target (widget, context, NULL);
6106 if (target != GDK_NONE)
6107 gtk_drag_get_data (widget, context, target, time);
6109 gtk_drag_finish (context, FALSE, FALSE, time);
6115 insert_text_data (GtkTextView *text_view,
6116 GtkTextIter *drop_point,
6117 GtkSelectionData *selection_data)
6121 str = gtk_selection_data_get_text (selection_data);
6125 gtk_text_buffer_insert_interactive (get_buffer (text_view),
6126 drop_point, str, -1,
6127 text_view->editable);
6133 gtk_text_view_drag_data_received (GtkWidget *widget,
6134 GdkDragContext *context,
6137 GtkSelectionData *selection_data,
6141 GtkTextIter drop_point;
6142 GtkTextView *text_view;
6143 gboolean success = FALSE;
6144 GtkTextBuffer *buffer = NULL;
6146 text_view = GTK_TEXT_VIEW (widget);
6148 if (!text_view->dnd_mark)
6151 buffer = get_buffer (text_view);
6153 gtk_text_buffer_get_iter_at_mark (buffer,
6155 text_view->dnd_mark);
6157 if (!gtk_text_iter_can_insert (&drop_point, text_view->editable))
6162 gtk_text_buffer_begin_user_action (buffer);
6164 if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
6166 GtkTextBuffer *src_buffer = NULL;
6167 GtkTextIter start, end;
6168 gboolean copy_tags = TRUE;
6170 if (selection_data->length != sizeof (src_buffer))
6173 memcpy (&src_buffer, selection_data->data, sizeof (src_buffer));
6175 if (src_buffer == NULL)
6178 g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer));
6180 if (gtk_text_buffer_get_tag_table (src_buffer) !=
6181 gtk_text_buffer_get_tag_table (buffer))
6184 if (gtk_text_buffer_get_selection_bounds (src_buffer,
6189 gtk_text_buffer_insert_range_interactive (buffer,
6193 text_view->editable);
6198 str = gtk_text_iter_get_visible_text (&start, &end);
6199 gtk_text_buffer_insert_interactive (buffer,
6200 &drop_point, str, -1,
6201 text_view->editable);
6207 insert_text_data (text_view, &drop_point, selection_data);
6210 gtk_drag_finish (context, success,
6211 success && context->action == GDK_ACTION_MOVE,
6216 gtk_text_buffer_get_iter_at_mark (buffer,
6218 text_view->dnd_mark);
6219 gtk_text_buffer_place_cursor (buffer, &drop_point);
6221 gtk_text_buffer_end_user_action (buffer);
6225 static GtkAdjustment*
6226 get_hadjustment (GtkTextView *text_view)
6228 if (text_view->hadjustment == NULL)
6229 gtk_text_view_set_scroll_adjustments (text_view,
6230 NULL, /* forces creation */
6231 text_view->vadjustment);
6233 return text_view->hadjustment;
6236 static GtkAdjustment*
6237 get_vadjustment (GtkTextView *text_view)
6239 if (text_view->vadjustment == NULL)
6240 gtk_text_view_set_scroll_adjustments (text_view,
6241 text_view->hadjustment,
6242 NULL); /* forces creation */
6243 return text_view->vadjustment;
6248 gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
6249 GtkAdjustment *hadj,
6250 GtkAdjustment *vadj)
6252 gboolean need_adjust = FALSE;
6254 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6257 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
6259 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
6261 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
6263 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
6265 if (text_view->hadjustment && (text_view->hadjustment != hadj))
6267 g_signal_handlers_disconnect_by_func (text_view->hadjustment,
6268 gtk_text_view_value_changed,
6270 g_object_unref (text_view->hadjustment);
6273 if (text_view->vadjustment && (text_view->vadjustment != vadj))
6275 g_signal_handlers_disconnect_by_func (text_view->vadjustment,
6276 gtk_text_view_value_changed,
6278 g_object_unref (text_view->vadjustment);
6281 if (text_view->hadjustment != hadj)
6283 text_view->hadjustment = hadj;
6284 g_object_ref (text_view->hadjustment);
6285 gtk_object_sink (GTK_OBJECT (text_view->hadjustment));
6287 g_signal_connect (text_view->hadjustment, "value_changed",
6288 G_CALLBACK (gtk_text_view_value_changed),
6293 if (text_view->vadjustment != vadj)
6295 text_view->vadjustment = vadj;
6296 g_object_ref (text_view->vadjustment);
6297 gtk_object_sink (GTK_OBJECT (text_view->vadjustment));
6299 g_signal_connect (text_view->vadjustment, "value_changed",
6300 G_CALLBACK (gtk_text_view_value_changed),
6306 gtk_text_view_value_changed (NULL, text_view);
6309 /* FIXME this adjust_allocation is a big cut-and-paste from
6310 * GtkCList, needs to be some "official" way to do this
6320 /* The window to which widget->window is relative */
6321 #define ALLOCATION_WINDOW(widget) \
6322 (GTK_WIDGET_NO_WINDOW (widget) ? \
6323 (widget)->window : \
6324 gdk_window_get_parent ((widget)->window))
6327 adjust_allocation_recurse (GtkWidget *widget,
6330 ScrollData *scroll_data = data;
6332 /* Need to really size allocate instead of just poking
6333 * into widget->allocation if the widget is not realized.
6334 * FIXME someone figure out why this was.
6336 if (!GTK_WIDGET_REALIZED (widget))
6338 if (GTK_WIDGET_VISIBLE (widget))
6340 GdkRectangle tmp_rectangle = widget->allocation;
6341 tmp_rectangle.x += scroll_data->dx;
6342 tmp_rectangle.y += scroll_data->dy;
6344 gtk_widget_size_allocate (widget, &tmp_rectangle);
6349 if (ALLOCATION_WINDOW (widget) == scroll_data->window)
6351 widget->allocation.x += scroll_data->dx;
6352 widget->allocation.y += scroll_data->dy;
6354 if (GTK_IS_CONTAINER (widget))
6355 gtk_container_forall (GTK_CONTAINER (widget),
6356 adjust_allocation_recurse,
6363 adjust_allocation (GtkWidget *widget,
6367 ScrollData scroll_data;
6369 if (GTK_WIDGET_REALIZED (widget))
6370 scroll_data.window = ALLOCATION_WINDOW (widget);
6372 scroll_data.window = NULL;
6374 scroll_data.dx = dx;
6375 scroll_data.dy = dy;
6377 adjust_allocation_recurse (widget, &scroll_data);
6381 gtk_text_view_value_changed (GtkAdjustment *adj,
6382 GtkTextView *text_view)
6389 /* Note that we oddly call this function with adj == NULL
6393 text_view->onscreen_validated = FALSE;
6395 DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n",
6396 adj == text_view->hadjustment ? "hadj" : adj == text_view->vadjustment ? "vadj" : "none",
6397 adj ? adj->value : 0.0));
6399 if (adj == text_view->hadjustment)
6401 dx = text_view->xoffset - (gint)adj->value;
6402 text_view->xoffset = adj->value;
6404 else if (adj == text_view->vadjustment)
6406 dy = text_view->yoffset - (gint)adj->value;
6407 text_view->yoffset = adj->value;
6409 if (text_view->layout)
6411 gtk_text_layout_get_line_at_y (text_view->layout, &iter, adj->value, &line_top);
6413 gtk_text_buffer_move_mark (get_buffer (text_view), text_view->first_para_mark, &iter);
6415 text_view->first_para_pixels = adj->value - line_top;
6419 if (dx != 0 || dy != 0)
6423 if (GTK_WIDGET_REALIZED (text_view))
6427 if (text_view->left_window)
6428 text_window_scroll (text_view->left_window, 0, dy);
6429 if (text_view->right_window)
6430 text_window_scroll (text_view->right_window, 0, dy);
6435 if (text_view->top_window)
6436 text_window_scroll (text_view->top_window, dx, 0);
6437 if (text_view->bottom_window)
6438 text_window_scroll (text_view->bottom_window, dx, 0);
6441 /* It looks nicer to scroll the main area last, because
6442 * it takes a while, and making the side areas update
6443 * afterward emphasizes the slowness of scrolling the
6446 text_window_scroll (text_view->text_window, dx, dy);
6449 /* Children are now "moved" in the text window, poke
6450 * into widget->allocation for each child
6452 tmp_list = text_view->children;
6453 while (tmp_list != NULL)
6455 GtkTextViewChild *child = tmp_list->data;
6458 adjust_allocation (child->widget, dx, dy);
6460 tmp_list = g_slist_next (tmp_list);
6464 /* This could result in invalidation, which would install the
6465 * first_validate_idle, which would validate onscreen;
6466 * but we're going to go ahead and validate here, so
6467 * first_validate_idle shouldn't have anything to do.
6469 gtk_text_view_update_layout_width (text_view);
6471 /* note that validation of onscreen could invoke this function
6472 * recursively, by scrolling to maintain first_para, or in response
6473 * to updating the layout width, however there is no problem with
6474 * that, or shouldn't be.
6476 gtk_text_view_validate_onscreen (text_view);
6478 /* process exposes */
6479 if (GTK_WIDGET_REALIZED (text_view))
6481 DV (g_print ("Processing updates (%s)\n", G_STRLOC));
6483 if (text_view->left_window)
6484 gdk_window_process_updates (text_view->left_window->bin_window, TRUE);
6486 if (text_view->right_window)
6487 gdk_window_process_updates (text_view->right_window->bin_window, TRUE);
6489 if (text_view->top_window)
6490 gdk_window_process_updates (text_view->top_window->bin_window, TRUE);
6492 if (text_view->bottom_window)
6493 gdk_window_process_updates (text_view->bottom_window->bin_window, TRUE);
6495 gdk_window_process_updates (text_view->text_window->bin_window, TRUE);
6498 /* If this got installed, get rid of it, it's just a waste of time. */
6499 if (text_view->first_validate_idle != 0)
6501 g_source_remove (text_view->first_validate_idle);
6502 text_view->first_validate_idle = 0;
6505 gtk_text_view_update_im_spot_location (text_view);
6507 DV(g_print(">End scroll offset changed handler ("G_STRLOC")\n"));
6511 gtk_text_view_commit_handler (GtkIMContext *context,
6513 GtkTextView *text_view)
6515 gtk_text_view_commit_text (text_view, str);
6519 gtk_text_view_commit_text (GtkTextView *text_view,
6522 gboolean had_selection;
6524 gtk_text_buffer_begin_user_action (get_buffer (text_view));
6526 had_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
6529 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
6530 text_view->editable);
6532 if (!strcmp (str, "\n"))
6534 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
6535 text_view->editable);
6539 if (!had_selection && text_view->overwrite_mode)
6543 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
6545 gtk_text_buffer_get_mark (get_buffer (text_view),
6547 if (!gtk_text_iter_ends_line (&insert))
6548 gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
6550 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
6551 text_view->editable);
6554 gtk_text_buffer_end_user_action (get_buffer (text_view));
6556 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6557 gtk_text_view_scroll_mark_onscreen (text_view,
6558 gtk_text_buffer_get_mark (get_buffer (text_view),
6563 gtk_text_view_preedit_changed_handler (GtkIMContext *context,
6564 GtkTextView *text_view)
6567 PangoAttrList *attrs;
6570 gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos);
6571 gtk_text_layout_set_preedit_string (text_view->layout, str, attrs, cursor_pos);
6572 pango_attr_list_unref (attrs);
6575 gtk_text_view_scroll_mark_onscreen (text_view,
6576 gtk_text_buffer_get_mark (get_buffer (text_view),
6581 gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
6582 GtkTextView *text_view)
6589 gtk_text_buffer_get_iter_at_mark (text_view->buffer, &start,
6590 gtk_text_buffer_get_insert (text_view->buffer));
6593 pos = gtk_text_iter_get_line_index (&start);
6594 gtk_text_iter_set_line_offset (&start, 0);
6595 gtk_text_iter_forward_to_line_end (&end);
6597 text = gtk_text_iter_get_slice (&start, &end);
6598 gtk_im_context_set_surrounding (context, text, -1, pos);
6605 gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
6608 GtkTextView *text_view)
6613 gtk_text_buffer_get_iter_at_mark (text_view->buffer, &start,
6614 gtk_text_buffer_get_insert (text_view->buffer));
6617 gtk_text_iter_forward_chars (&start, offset);
6618 gtk_text_iter_forward_chars (&end, offset + n_chars);
6620 gtk_text_buffer_delete (text_view->buffer, &start, &end);
6626 gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
6627 const GtkTextIter *location,
6631 GtkTextView *text_view = GTK_TEXT_VIEW (data);
6632 gboolean need_reset = FALSE;
6634 if (mark == gtk_text_buffer_get_insert (buffer))
6636 text_view->virtual_cursor_x = -1;
6637 text_view->virtual_cursor_y = -1;
6638 gtk_text_view_update_im_spot_location (text_view);
6641 else if (mark == gtk_text_buffer_get_selection_bound (buffer))
6647 gtk_text_view_reset_im_context (text_view);
6651 gtk_text_view_get_cursor_location (GtkTextView *text_view,
6656 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
6657 gtk_text_buffer_get_mark (get_buffer (text_view),
6660 gtk_text_layout_get_cursor_locations (text_view->layout, &insert, pos, NULL);
6664 gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
6670 if ((x && text_view->virtual_cursor_x == -1) ||
6671 (y && text_view->virtual_cursor_y == -1))
6672 gtk_text_view_get_cursor_location (text_view, &pos);
6676 if (text_view->virtual_cursor_x != -1)
6677 *x = text_view->virtual_cursor_x;
6684 if (text_view->virtual_cursor_x != -1)
6685 *y = text_view->virtual_cursor_y;
6687 *y = pos.y + pos.height / 2;
6692 gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
6698 if (x == -1 || y == -1)
6699 gtk_text_view_get_cursor_location (text_view, &pos);
6701 text_view->virtual_cursor_x = (x == -1) ? pos.x : x;
6702 text_view->virtual_cursor_y = (y == -1) ? pos.y + pos.height / 2 : y;
6705 /* Quick hack of a popup menu
6708 activate_cb (GtkWidget *menuitem,
6709 GtkTextView *text_view)
6711 const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
6712 g_signal_emit_by_name (text_view, signal);
6716 append_action_signal (GtkTextView *text_view,
6718 const gchar *stock_id,
6719 const gchar *signal,
6722 GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
6724 g_object_set_data (G_OBJECT (menuitem), "gtk-signal", (char *)signal);
6725 g_signal_connect (menuitem, "activate",
6726 G_CALLBACK (activate_cb), text_view);
6728 gtk_widget_set_sensitive (menuitem, sensitive);
6730 gtk_widget_show (menuitem);
6731 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
6735 gtk_text_view_select_all (GtkWidget *widget,
6738 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
6739 GtkTextBuffer *buffer;
6740 GtkTextIter start_iter, end_iter, insert;
6742 buffer = text_view->buffer;
6745 gtk_text_buffer_get_bounds (buffer, &start_iter, &end_iter);
6746 gtk_text_buffer_move_mark_by_name (buffer, "insert", &start_iter);
6747 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &end_iter);
6751 gtk_text_buffer_get_iter_at_mark (buffer, &insert,
6752 gtk_text_buffer_get_insert (buffer));
6753 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &insert);
6758 select_all_cb (GtkWidget *menuitem,
6759 GtkTextView *text_view)
6761 gtk_text_view_select_all (GTK_WIDGET (text_view), TRUE);
6765 delete_cb (GtkTextView *text_view)
6767 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
6768 text_view->editable);
6772 popup_menu_detach (GtkWidget *attach_widget,
6775 GTK_TEXT_VIEW (attach_widget)->popup_menu = NULL;
6779 popup_position_func (GtkMenu *menu,
6785 GtkTextView *text_view;
6787 GdkRectangle cursor_rect;
6788 GdkRectangle onscreen_rect;
6789 gint root_x, root_y;
6794 text_view = GTK_TEXT_VIEW (user_data);
6795 widget = GTK_WIDGET (text_view);
6797 g_return_if_fail (GTK_WIDGET_REALIZED (text_view));
6799 screen = gtk_widget_get_screen (widget);
6801 gdk_window_get_origin (widget->window, &root_x, &root_y);
6803 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
6805 gtk_text_buffer_get_insert (get_buffer (text_view)));
6807 gtk_text_view_get_iter_location (text_view,
6811 gtk_text_view_get_visible_rect (text_view, &onscreen_rect);
6813 gtk_widget_size_request (text_view->popup_menu, &req);
6815 /* can't use rectangle_intersect since cursor rect can have 0 width */
6816 if (cursor_rect.x >= onscreen_rect.x &&
6817 cursor_rect.x < onscreen_rect.x + onscreen_rect.width &&
6818 cursor_rect.y >= onscreen_rect.y &&
6819 cursor_rect.y < onscreen_rect.y + onscreen_rect.height)
6821 gtk_text_view_buffer_to_window_coords (text_view,
6822 GTK_TEXT_WINDOW_WIDGET,
6823 cursor_rect.x, cursor_rect.y,
6824 &cursor_rect.x, &cursor_rect.y);
6826 *x = root_x + cursor_rect.x + cursor_rect.width;
6827 *y = root_y + cursor_rect.y + cursor_rect.height;
6831 /* Just center the menu, since cursor is offscreen. */
6832 *x = root_x + (widget->allocation.width / 2 - req.width / 2);
6833 *y = root_y + (widget->allocation.height / 2 - req.height / 2);
6837 *x = CLAMP (*x, root_x, (root_x + widget->allocation.width));
6838 *y = CLAMP (*y, root_y, (root_y + widget->allocation.height));
6840 *x = CLAMP (*x, 0, MAX (0, gdk_screen_get_width (screen) - req.width));
6841 *y = CLAMP (*y, 0, MAX (0, gdk_screen_get_height (screen) - req.height));
6846 GtkTextView *text_view;
6852 range_contains_editable_text (const GtkTextIter *start,
6853 const GtkTextIter *end,
6854 gboolean default_editability)
6856 GtkTextIter iter = *start;
6858 while (gtk_text_iter_compare (&iter, end) < 0)
6860 if (gtk_text_iter_editable (&iter, default_editability))
6863 gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
6870 unichar_chosen_func (const char *text,
6873 GtkTextView *text_view = GTK_TEXT_VIEW (data);
6875 gtk_text_view_commit_text (text_view, text);
6879 popup_targets_received (GtkClipboard *clipboard,
6880 GtkSelectionData *data,
6883 PopupInfo *info = user_data;
6884 GtkTextView *text_view = info->text_view;
6886 if (GTK_WIDGET_REALIZED (text_view))
6888 /* We implicitely rely here on the fact that if we are pasting ourself, we'll
6889 * have text targets as well as the private GTK_TEXT_BUFFER_CONTENTS target.
6891 gboolean clipboard_contains_text = gtk_selection_data_targets_include_text (data);
6892 GtkWidget *menuitem;
6894 gboolean have_selection;
6895 gboolean can_insert;
6897 GtkTextIter sel_start, sel_end;
6899 if (text_view->popup_menu)
6900 gtk_widget_destroy (text_view->popup_menu);
6902 text_view->popup_menu = gtk_menu_new ();
6904 gtk_menu_attach_to_widget (GTK_MENU (text_view->popup_menu),
6905 GTK_WIDGET (text_view),
6908 have_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
6909 &sel_start, &sel_end);
6911 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
6913 gtk_text_buffer_get_insert (get_buffer (text_view)));
6915 can_insert = gtk_text_iter_can_insert (&iter, text_view->editable);
6917 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_CUT, "cut_clipboard",
6919 range_contains_editable_text (&sel_start, &sel_end,
6920 text_view->editable));
6921 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_COPY, "copy_clipboard",
6923 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_PASTE, "paste_clipboard",
6924 can_insert && clipboard_contains_text);
6926 menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_DELETE, NULL);
6927 gtk_widget_set_sensitive (menuitem,
6929 range_contains_editable_text (&sel_start, &sel_end,
6930 text_view->editable));
6931 g_signal_connect_swapped (menuitem, "activate",
6932 G_CALLBACK (delete_cb), text_view);
6933 gtk_widget_show (menuitem);
6934 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
6936 menuitem = gtk_separator_menu_item_new ();
6937 gtk_widget_show (menuitem);
6938 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
6940 menuitem = gtk_menu_item_new_with_mnemonic (_("Select _All"));
6941 g_signal_connect (menuitem, "activate",
6942 G_CALLBACK (select_all_cb), text_view);
6943 gtk_widget_show (menuitem);
6944 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
6946 menuitem = gtk_separator_menu_item_new ();
6947 gtk_widget_show (menuitem);
6948 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
6950 menuitem = gtk_menu_item_new_with_mnemonic (_("Input _Methods"));
6951 gtk_widget_show (menuitem);
6952 gtk_widget_set_sensitive (menuitem, can_insert);
6954 submenu = gtk_menu_new ();
6955 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
6956 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
6958 gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (text_view->im_context),
6959 GTK_MENU_SHELL (submenu));
6961 menuitem = gtk_menu_item_new_with_mnemonic (_("_Insert Unicode Control Character"));
6962 gtk_widget_show (menuitem);
6963 gtk_widget_set_sensitive (menuitem, can_insert);
6965 submenu = gtk_menu_new ();
6966 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
6967 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
6969 _gtk_text_util_append_special_char_menuitems (GTK_MENU_SHELL (submenu),
6970 unichar_chosen_func,
6973 g_signal_emit (text_view,
6974 signals[POPULATE_POPUP],
6976 text_view->popup_menu);
6979 gtk_menu_popup (GTK_MENU (text_view->popup_menu), NULL, NULL,
6981 info->button, info->time);
6984 gtk_menu_popup (GTK_MENU (text_view->popup_menu), NULL, NULL,
6985 popup_position_func, text_view,
6986 0, gtk_get_current_event_time ());
6987 gtk_menu_shell_select_first (GTK_MENU_SHELL (text_view->popup_menu), FALSE);
6991 g_object_unref (text_view);
6996 gtk_text_view_do_popup (GtkTextView *text_view,
6997 GdkEventButton *event)
6999 PopupInfo *info = g_new (PopupInfo, 1);
7001 /* should not need this, see http://bugzilla.gnome.org/show_bug.cgi?id=74620 */
7002 gtk_text_view_end_selection_drag (text_view, event);
7004 /* In order to know what entries we should make sensitive, we
7005 * ask for the current targets of the clipboard, and when
7006 * we get them, then we actually pop up the menu.
7008 info->text_view = g_object_ref (text_view);
7012 info->button = event->button;
7013 info->time = event->time;
7018 info->time = gtk_get_current_event_time ();
7021 gtk_clipboard_request_contents (gtk_widget_get_clipboard (GTK_WIDGET (text_view),
7022 GDK_SELECTION_CLIPBOARD),
7023 gdk_atom_intern ("TARGETS", FALSE),
7024 popup_targets_received,
7029 gtk_text_view_popup_menu (GtkWidget *widget)
7031 gtk_text_view_do_popup (GTK_TEXT_VIEW (widget), NULL);
7035 /* Child GdkWindows */
7038 static GtkTextWindow*
7039 text_window_new (GtkTextWindowType type,
7042 gint height_request)
7046 win = g_new (GtkTextWindow, 1);
7049 win->widget = widget;
7051 win->bin_window = NULL;
7052 win->requisition.width = width_request;
7053 win->requisition.height = height_request;
7054 win->allocation.width = width_request;
7055 win->allocation.height = height_request;
7056 win->allocation.x = 0;
7057 win->allocation.y = 0;
7063 text_window_free (GtkTextWindow *win)
7066 text_window_unrealize (win);
7072 text_window_realize (GtkTextWindow *win,
7075 GdkWindowAttr attributes;
7076 gint attributes_mask;
7079 attributes.window_type = GDK_WINDOW_CHILD;
7080 attributes.x = win->allocation.x;
7081 attributes.y = win->allocation.y;
7082 attributes.width = win->allocation.width;
7083 attributes.height = win->allocation.height;
7084 attributes.wclass = GDK_INPUT_OUTPUT;
7085 attributes.visual = gtk_widget_get_visual (win->widget);
7086 attributes.colormap = gtk_widget_get_colormap (win->widget);
7087 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
7089 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
7091 win->window = gdk_window_new (parent,
7095 gdk_window_show (win->window);
7096 gdk_window_set_user_data (win->window, win->widget);
7100 attributes.width = win->allocation.width;
7101 attributes.height = win->allocation.height;
7102 attributes.event_mask = (GDK_EXPOSURE_MASK |
7104 GDK_KEY_PRESS_MASK |
7105 GDK_BUTTON_PRESS_MASK |
7106 GDK_BUTTON_RELEASE_MASK |
7107 GDK_POINTER_MOTION_MASK |
7108 GDK_POINTER_MOTION_HINT_MASK |
7109 gtk_widget_get_events (win->widget));
7111 win->bin_window = gdk_window_new (win->window,
7115 gdk_window_show (win->bin_window);
7116 gdk_window_set_user_data (win->bin_window, win->widget);
7118 if (win->type == GTK_TEXT_WINDOW_TEXT)
7121 cursor = gdk_cursor_new_for_display (gdk_drawable_get_display (parent),
7123 gdk_window_set_cursor (win->bin_window, cursor);
7124 gdk_cursor_unref (cursor);
7126 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
7130 gdk_window_set_background (win->bin_window,
7131 &win->widget->style->base[GTK_WIDGET_STATE (win->widget)]);
7135 gdk_window_set_background (win->bin_window,
7136 &win->widget->style->bg[GTK_WIDGET_STATE (win->widget)]);
7139 g_object_set_qdata (G_OBJECT (win->window),
7140 g_quark_from_static_string ("gtk-text-view-text-window"),
7143 g_object_set_qdata (G_OBJECT (win->bin_window),
7144 g_quark_from_static_string ("gtk-text-view-text-window"),
7149 text_window_unrealize (GtkTextWindow *win)
7151 if (win->type == GTK_TEXT_WINDOW_TEXT)
7153 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
7157 gdk_window_set_user_data (win->window, NULL);
7158 gdk_window_set_user_data (win->bin_window, NULL);
7159 gdk_window_destroy (win->bin_window);
7160 gdk_window_destroy (win->window);
7162 win->bin_window = NULL;
7166 text_window_size_allocate (GtkTextWindow *win,
7169 win->allocation = *rect;
7173 gdk_window_move_resize (win->window,
7175 rect->width, rect->height);
7177 gdk_window_resize (win->bin_window,
7178 rect->width, rect->height);
7183 text_window_scroll (GtkTextWindow *win,
7187 if (dx != 0 || dy != 0)
7189 gdk_window_scroll (win->bin_window, dx, dy);
7194 text_window_invalidate_rect (GtkTextWindow *win,
7197 GdkRectangle window_rect;
7199 gtk_text_view_buffer_to_window_coords (GTK_TEXT_VIEW (win->widget),
7206 window_rect.width = rect->width;
7207 window_rect.height = rect->height;
7209 /* Adjust the rect as appropriate */
7213 case GTK_TEXT_WINDOW_TEXT:
7216 case GTK_TEXT_WINDOW_LEFT:
7217 case GTK_TEXT_WINDOW_RIGHT:
7219 window_rect.width = win->allocation.width;
7222 case GTK_TEXT_WINDOW_TOP:
7223 case GTK_TEXT_WINDOW_BOTTOM:
7225 window_rect.height = win->allocation.height;
7229 g_warning ("%s: bug!", G_STRLOC);
7234 gdk_window_invalidate_rect (win->bin_window, &window_rect, FALSE);
7238 GdkColor color = { 0, 65535, 0, 0 };
7239 GdkGC *gc = gdk_gc_new (win->bin_window);
7240 gdk_gc_set_rgb_fg_color (gc, &color);
7241 gdk_draw_rectangle (win->bin_window,
7242 gc, TRUE, window_rect.x, window_rect.y,
7243 window_rect.width, window_rect.height);
7244 g_object_unref (gc);
7250 text_window_get_width (GtkTextWindow *win)
7252 return win->allocation.width;
7256 text_window_get_height (GtkTextWindow *win)
7258 return win->allocation.height;
7265 * gtk_text_view_get_window:
7266 * @text_view: a #GtkTextView
7267 * @win: window to get
7269 * Retrieves the #GdkWindow corresponding to an area of the text view;
7270 * possible windows include the overall widget window, child windows
7271 * on the left, right, top, bottom, and the window that displays the
7272 * text buffer. Windows are %NULL and nonexistent if their width or
7273 * height is 0, and are nonexistent before the widget has been
7276 * Return value: a #GdkWindow, or %NULL
7279 gtk_text_view_get_window (GtkTextView *text_view,
7280 GtkTextWindowType win)
7282 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
7286 case GTK_TEXT_WINDOW_WIDGET:
7287 return GTK_WIDGET (text_view)->window;
7290 case GTK_TEXT_WINDOW_TEXT:
7291 return text_view->text_window->bin_window;
7294 case GTK_TEXT_WINDOW_LEFT:
7295 if (text_view->left_window)
7296 return text_view->left_window->bin_window;
7301 case GTK_TEXT_WINDOW_RIGHT:
7302 if (text_view->right_window)
7303 return text_view->right_window->bin_window;
7308 case GTK_TEXT_WINDOW_TOP:
7309 if (text_view->top_window)
7310 return text_view->top_window->bin_window;
7315 case GTK_TEXT_WINDOW_BOTTOM:
7316 if (text_view->bottom_window)
7317 return text_view->bottom_window->bin_window;
7322 case GTK_TEXT_WINDOW_PRIVATE:
7323 g_warning ("%s: You can't get GTK_TEXT_WINDOW_PRIVATE, it has \"PRIVATE\" in the name because it is private.", G_GNUC_FUNCTION);
7328 g_warning ("%s: Unknown GtkTextWindowType", G_GNUC_FUNCTION);
7333 * gtk_text_view_get_window_type:
7334 * @text_view: a #GtkTextView
7335 * @window: a window type
7337 * Usually used to find out which window an event corresponds to.
7338 * If you connect to an event signal on @text_view, this function
7339 * should be called on <literal>event->window</literal> to
7340 * see which window it was.
7342 * Return value: the window type.
7345 gtk_text_view_get_window_type (GtkTextView *text_view,
7350 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
7351 g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
7353 if (window == GTK_WIDGET (text_view)->window)
7354 return GTK_TEXT_WINDOW_WIDGET;
7356 win = g_object_get_qdata (G_OBJECT (window),
7357 g_quark_try_string ("gtk-text-view-text-window"));
7363 return GTK_TEXT_WINDOW_PRIVATE;
7368 buffer_to_widget (GtkTextView *text_view,
7376 *window_x = buffer_x - text_view->xoffset;
7377 *window_x += text_view->text_window->allocation.x;
7382 *window_y = buffer_y - text_view->yoffset;
7383 *window_y += text_view->text_window->allocation.y;
7388 widget_to_text_window (GtkTextWindow *win,
7395 *window_x = widget_x - win->allocation.x;
7398 *window_y = widget_y - win->allocation.y;
7402 buffer_to_text_window (GtkTextView *text_view,
7411 g_warning ("Attempt to convert text buffer coordinates to coordinates "
7412 "for a nonexistent or private child window of GtkTextView");
7416 buffer_to_widget (text_view,
7418 window_x, window_y);
7420 widget_to_text_window (win,
7421 window_x ? *window_x : 0,
7422 window_y ? *window_y : 0,
7428 * gtk_text_view_buffer_to_window_coords:
7429 * @text_view: a #GtkTextView
7430 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
7431 * @buffer_x: buffer x coordinate
7432 * @buffer_y: buffer y coordinate
7433 * @window_x: window x coordinate return location
7434 * @window_y: window y coordinate return location
7436 * Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window
7437 * @win, and stores the result in (@window_x, @window_y).
7439 * Note that you can't convert coordinates for a nonexisting window (see
7440 * gtk_text_view_set_border_window_size()).
7443 gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
7444 GtkTextWindowType win,
7450 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
7454 case GTK_TEXT_WINDOW_WIDGET:
7455 buffer_to_widget (text_view,
7457 window_x, window_y);
7460 case GTK_TEXT_WINDOW_TEXT:
7462 *window_x = buffer_x - text_view->xoffset;
7464 *window_y = buffer_y - text_view->yoffset;
7467 case GTK_TEXT_WINDOW_LEFT:
7468 buffer_to_text_window (text_view,
7469 text_view->left_window,
7471 window_x, window_y);
7474 case GTK_TEXT_WINDOW_RIGHT:
7475 buffer_to_text_window (text_view,
7476 text_view->right_window,
7478 window_x, window_y);
7481 case GTK_TEXT_WINDOW_TOP:
7482 buffer_to_text_window (text_view,
7483 text_view->top_window,
7485 window_x, window_y);
7488 case GTK_TEXT_WINDOW_BOTTOM:
7489 buffer_to_text_window (text_view,
7490 text_view->bottom_window,
7492 window_x, window_y);
7495 case GTK_TEXT_WINDOW_PRIVATE:
7496 g_warning ("%s: can't get coords for private windows", G_STRLOC);
7500 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
7506 widget_to_buffer (GtkTextView *text_view,
7514 *buffer_x = widget_x + text_view->xoffset;
7515 *buffer_x -= text_view->text_window->allocation.x;
7520 *buffer_y = widget_y + text_view->yoffset;
7521 *buffer_y -= text_view->text_window->allocation.y;
7526 text_window_to_widget (GtkTextWindow *win,
7533 *widget_x = window_x + win->allocation.x;
7536 *widget_y = window_y + win->allocation.y;
7540 text_window_to_buffer (GtkTextView *text_view,
7549 g_warning ("Attempt to convert GtkTextView buffer coordinates into "
7550 "coordinates for a nonexistent child window.");
7554 text_window_to_widget (win,
7560 widget_to_buffer (text_view,
7561 buffer_x ? *buffer_x : 0,
7562 buffer_y ? *buffer_y : 0,
7568 * gtk_text_view_window_to_buffer_coords:
7569 * @text_view: a #GtkTextView
7570 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
7571 * @window_x: window x coordinate
7572 * @window_y: window y coordinate
7573 * @buffer_x: buffer x coordinate return location
7574 * @buffer_y: buffer y coordinate return location
7576 * Converts coordinates on the window identified by @win to buffer
7577 * coordinates, storing the result in (@buffer_x,@buffer_y).
7579 * Note that you can't convert coordinates for a nonexisting window (see
7580 * gtk_text_view_set_border_window_size()).
7583 gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
7584 GtkTextWindowType win,
7590 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
7594 case GTK_TEXT_WINDOW_WIDGET:
7595 widget_to_buffer (text_view,
7597 buffer_x, buffer_y);
7600 case GTK_TEXT_WINDOW_TEXT:
7602 *buffer_x = window_x + text_view->xoffset;
7604 *buffer_y = window_y + text_view->yoffset;
7607 case GTK_TEXT_WINDOW_LEFT:
7608 text_window_to_buffer (text_view,
7609 text_view->left_window,
7611 buffer_x, buffer_y);
7614 case GTK_TEXT_WINDOW_RIGHT:
7615 text_window_to_buffer (text_view,
7616 text_view->right_window,
7618 buffer_x, buffer_y);
7621 case GTK_TEXT_WINDOW_TOP:
7622 text_window_to_buffer (text_view,
7623 text_view->top_window,
7625 buffer_x, buffer_y);
7628 case GTK_TEXT_WINDOW_BOTTOM:
7629 text_window_to_buffer (text_view,
7630 text_view->bottom_window,
7632 buffer_x, buffer_y);
7635 case GTK_TEXT_WINDOW_PRIVATE:
7636 g_warning ("%s: can't get coords for private windows", G_STRLOC);
7640 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
7646 set_window_width (GtkTextView *text_view,
7648 GtkTextWindowType type,
7649 GtkTextWindow **winp)
7655 text_window_free (*winp);
7657 gtk_widget_queue_resize (GTK_WIDGET (text_view));
7664 *winp = text_window_new (type,
7665 GTK_WIDGET (text_view),
7667 /* if the widget is already realized we need to realize the child manually */
7668 if (GTK_WIDGET_REALIZED (text_view))
7669 text_window_realize (*winp, GTK_WIDGET (text_view)->window);
7673 if ((*winp)->requisition.width == width)
7676 (*winp)->requisition.width = width;
7679 gtk_widget_queue_resize (GTK_WIDGET (text_view));
7685 set_window_height (GtkTextView *text_view,
7687 GtkTextWindowType type,
7688 GtkTextWindow **winp)
7694 text_window_free (*winp);
7696 gtk_widget_queue_resize (GTK_WIDGET (text_view));
7703 *winp = text_window_new (type,
7704 GTK_WIDGET (text_view),
7707 /* if the widget is already realized we need to realize the child manually */
7708 if (GTK_WIDGET_REALIZED (text_view))
7709 text_window_realize (*winp, GTK_WIDGET (text_view)->window);
7713 if ((*winp)->requisition.height == height)
7716 (*winp)->requisition.height = height;
7719 gtk_widget_queue_resize (GTK_WIDGET (text_view));
7724 * gtk_text_view_set_border_window_size:
7725 * @text_view: a #GtkTextView
7726 * @type: window to affect
7727 * @size: width or height of the window
7729 * Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT,
7730 * or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM.
7731 * Automatically destroys the corresponding window if the size is set
7732 * to 0, and creates the window if the size is set to non-zero. This
7733 * function can only be used for the "border windows," it doesn't work
7734 * with #GTK_TEXT_WINDOW_WIDGET, #GTK_TEXT_WINDOW_TEXT, or
7735 * #GTK_TEXT_WINDOW_PRIVATE.
7738 gtk_text_view_set_border_window_size (GtkTextView *text_view,
7739 GtkTextWindowType type,
7743 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
7744 g_return_if_fail (size >= 0);
7748 case GTK_TEXT_WINDOW_LEFT:
7749 set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT,
7750 &text_view->left_window);
7753 case GTK_TEXT_WINDOW_RIGHT:
7754 set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT,
7755 &text_view->right_window);
7758 case GTK_TEXT_WINDOW_TOP:
7759 set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP,
7760 &text_view->top_window);
7763 case GTK_TEXT_WINDOW_BOTTOM:
7764 set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM,
7765 &text_view->bottom_window);
7769 g_warning ("Can only set size of left/right/top/bottom border windows with gtk_text_view_set_border_window_size()");
7775 * gtk_text_view_get_border_window_size:
7776 * @text_view: a #GtkTextView
7777 * @type: window to return size from
7779 * Gets the width of the specified border window. See
7780 * gtk_text_view_set_border_window_size().
7782 * Return value: width of window
7785 gtk_text_view_get_border_window_size (GtkTextView *text_view,
7786 GtkTextWindowType type)
7788 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
7792 case GTK_TEXT_WINDOW_LEFT:
7793 if (text_view->left_window)
7794 return text_view->left_window->requisition.width;
7796 case GTK_TEXT_WINDOW_RIGHT:
7797 if (text_view->right_window)
7798 return text_view->right_window->requisition.width;
7800 case GTK_TEXT_WINDOW_TOP:
7801 if (text_view->top_window)
7802 return text_view->top_window->requisition.height;
7804 case GTK_TEXT_WINDOW_BOTTOM:
7805 if (text_view->bottom_window)
7806 return text_view->bottom_window->requisition.height;
7809 g_warning ("Can only get size of left/right/top/bottom border windows with gtk_text_view_get_border_window_size()");
7820 static GtkTextViewChild*
7821 text_view_child_new_anchored (GtkWidget *child,
7822 GtkTextChildAnchor *anchor,
7823 GtkTextLayout *layout)
7825 GtkTextViewChild *vc;
7827 vc = g_new (GtkTextViewChild, 1);
7829 vc->type = GTK_TEXT_WINDOW_PRIVATE;
7831 vc->anchor = anchor;
7833 vc->from_top_of_line = 0;
7834 vc->from_left_of_buffer = 0;
7836 g_object_ref (vc->widget);
7837 g_object_ref (vc->anchor);
7839 g_object_set_data (G_OBJECT (child),
7840 "gtk-text-view-child",
7843 gtk_text_child_anchor_register_child (anchor, child, layout);
7848 static GtkTextViewChild*
7849 text_view_child_new_window (GtkWidget *child,
7850 GtkTextWindowType type,
7854 GtkTextViewChild *vc;
7856 vc = g_new (GtkTextViewChild, 1);
7861 vc->from_top_of_line = 0;
7862 vc->from_left_of_buffer = 0;
7864 g_object_ref (vc->widget);
7870 g_object_set_data (G_OBJECT (child),
7871 "gtk-text-view-child",
7878 text_view_child_free (GtkTextViewChild *child)
7880 g_object_set_data (G_OBJECT (child->widget),
7881 "gtk-text-view-child", NULL);
7885 gtk_text_child_anchor_unregister_child (child->anchor,
7887 g_object_unref (child->anchor);
7890 g_object_unref (child->widget);
7896 text_view_child_set_parent_window (GtkTextView *text_view,
7897 GtkTextViewChild *vc)
7900 gtk_widget_set_parent_window (vc->widget,
7901 text_view->text_window->bin_window);
7905 window = gtk_text_view_get_window (text_view,
7907 gtk_widget_set_parent_window (vc->widget, window);
7912 add_child (GtkTextView *text_view,
7913 GtkTextViewChild *vc)
7915 text_view->children = g_slist_prepend (text_view->children,
7918 if (GTK_WIDGET_REALIZED (text_view))
7919 text_view_child_set_parent_window (text_view, vc);
7921 gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view));
7925 * gtk_text_view_add_child_at_anchor:
7926 * @text_view: a #GtkTextView
7927 * @child: a #GtkWidget
7928 * @anchor: a #GtkTextChildAnchor in the #GtkTextBuffer for @text_view
7930 * Adds a child widget in the text buffer, at the given @anchor.
7934 gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
7936 GtkTextChildAnchor *anchor)
7938 GtkTextViewChild *vc;
7940 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
7941 g_return_if_fail (GTK_IS_WIDGET (child));
7942 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
7943 g_return_if_fail (child->parent == NULL);
7945 gtk_text_view_ensure_layout (text_view);
7947 vc = text_view_child_new_anchored (child, anchor,
7950 add_child (text_view, vc);
7952 g_assert (vc->widget == child);
7953 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
7957 * gtk_text_view_add_child_in_window:
7958 * @text_view: a #GtkTextView
7959 * @child: a #GtkWidget
7960 * @which_window: which window the child should appear in
7961 * @xpos: X position of child in window coordinates
7962 * @ypos: Y position of child in window coordinates
7964 * Adds a child at fixed coordinates in one of the text widget's
7965 * windows. The window must have nonzero size (see
7966 * gtk_text_view_set_border_window_size()). Note that the child
7967 * coordinates are given relative to the #GdkWindow in question, and
7968 * that these coordinates have no sane relationship to scrolling. When
7969 * placing a child in #GTK_TEXT_WINDOW_WIDGET, scrolling is
7970 * irrelevant, the child floats above all scrollable areas. But when
7971 * placing a child in one of the scrollable windows (border windows or
7972 * text window), you'll need to compute the child's correct position
7973 * in buffer coordinates any time scrolling occurs or buffer changes
7974 * occur, and then call gtk_text_view_move_child() to update the
7975 * child's position. Unfortunately there's no good way to detect that
7976 * scrolling has occurred, using the current API; a possible hack
7977 * would be to update all child positions when the scroll adjustments
7978 * change or the text buffer changes. See bug 64518 on
7979 * bugzilla.gnome.org for status of fixing this issue.
7983 gtk_text_view_add_child_in_window (GtkTextView *text_view,
7985 GtkTextWindowType which_window,
7989 GtkTextViewChild *vc;
7991 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
7992 g_return_if_fail (GTK_IS_WIDGET (child));
7993 g_return_if_fail (child->parent == NULL);
7995 vc = text_view_child_new_window (child, which_window,
7998 add_child (text_view, vc);
8000 g_assert (vc->widget == child);
8001 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
8005 * gtk_text_view_move_child:
8006 * @text_view: a #GtkTextView
8007 * @child: child widget already added to the text view
8008 * @xpos: new X position in window coordinates
8009 * @ypos: new Y position in window coordinates
8011 * Updates the position of a child, as for gtk_text_view_add_child_in_window().
8015 gtk_text_view_move_child (GtkTextView *text_view,
8020 GtkTextViewChild *vc;
8022 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
8023 g_return_if_fail (GTK_IS_WIDGET (child));
8024 g_return_if_fail (child->parent == (GtkWidget*) text_view);
8026 vc = g_object_get_data (G_OBJECT (child),
8027 "gtk-text-view-child");
8029 g_assert (vc != NULL);
8031 if (vc->x == xpos &&
8038 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (text_view))
8039 gtk_widget_queue_resize (child);
8043 /* Iterator operations */
8046 * gtk_text_view_forward_display_line:
8047 * @text_view: a #GtkTextView
8048 * @iter: a #GtkTextIter
8050 * Moves the given @iter forward by one display (wrapped) line. A
8051 * display line is different from a paragraph. Paragraphs are
8052 * separated by newlines or other paragraph separator characters.
8053 * Display lines are created by line-wrapping a paragraph. If
8054 * wrapping is turned off, display lines and paragraphs will be the
8055 * same. Display lines are divided differently for each view, since
8056 * they depend on the view's width; paragraphs are the same in all
8057 * views, since they depend on the contents of the #GtkTextBuffer.
8059 * Return value: %TRUE if @iter was moved and is not on the end iterator
8062 gtk_text_view_forward_display_line (GtkTextView *text_view,
8065 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
8066 g_return_val_if_fail (iter != NULL, FALSE);
8068 gtk_text_view_ensure_layout (text_view);
8070 return gtk_text_layout_move_iter_to_next_line (text_view->layout, iter);
8074 * gtk_text_view_backward_display_line:
8075 * @text_view: a #GtkTextView
8076 * @iter: a #GtkTextIter
8078 * Moves the given @iter backward by one display (wrapped) line. A
8079 * display line is different from a paragraph. Paragraphs are
8080 * separated by newlines or other paragraph separator characters.
8081 * Display lines are created by line-wrapping a paragraph. If
8082 * wrapping is turned off, display lines and paragraphs will be the
8083 * same. Display lines are divided differently for each view, since
8084 * they depend on the view's width; paragraphs are the same in all
8085 * views, since they depend on the contents of the #GtkTextBuffer.
8087 * Return value: %TRUE if @iter was moved and is not on the end iterator
8090 gtk_text_view_backward_display_line (GtkTextView *text_view,
8093 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
8094 g_return_val_if_fail (iter != NULL, FALSE);
8096 gtk_text_view_ensure_layout (text_view);
8098 return gtk_text_layout_move_iter_to_previous_line (text_view->layout, iter);
8102 * gtk_text_view_forward_display_line_end:
8103 * @text_view: a #GtkTextView
8104 * @iter: a #GtkTextIter
8106 * Moves the given @iter forward to the next display line end. A
8107 * display line is different from a paragraph. Paragraphs are
8108 * separated by newlines or other paragraph separator characters.
8109 * Display lines are created by line-wrapping a paragraph. If
8110 * wrapping is turned off, display lines and paragraphs will be the
8111 * same. Display lines are divided differently for each view, since
8112 * they depend on the view's width; paragraphs are the same in all
8113 * views, since they depend on the contents of the #GtkTextBuffer.
8115 * Return value: %TRUE if @iter was moved and is not on the end iterator
8118 gtk_text_view_forward_display_line_end (GtkTextView *text_view,
8121 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
8122 g_return_val_if_fail (iter != NULL, FALSE);
8124 gtk_text_view_ensure_layout (text_view);
8126 return gtk_text_layout_move_iter_to_line_end (text_view->layout, iter, 1);
8130 * gtk_text_view_backward_display_line_start:
8131 * @text_view: a #GtkTextView
8132 * @iter: a #GtkTextIter
8134 * Moves the given @iter backward to the next display line start. A
8135 * display line is different from a paragraph. Paragraphs are
8136 * separated by newlines or other paragraph separator characters.
8137 * Display lines are created by line-wrapping a paragraph. If
8138 * wrapping is turned off, display lines and paragraphs will be the
8139 * same. Display lines are divided differently for each view, since
8140 * they depend on the view's width; paragraphs are the same in all
8141 * views, since they depend on the contents of the #GtkTextBuffer.
8143 * Return value: %TRUE if @iter was moved and is not on the end iterator
8146 gtk_text_view_backward_display_line_start (GtkTextView *text_view,
8149 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
8150 g_return_val_if_fail (iter != NULL, FALSE);
8152 gtk_text_view_ensure_layout (text_view);
8154 return gtk_text_layout_move_iter_to_line_end (text_view->layout, iter, -1);
8158 * gtk_text_view_starts_display_line:
8159 * @text_view: a #GtkTextView
8160 * @iter: a #GtkTextIter
8162 * Determines whether @iter is at the start of a display line.
8163 * See gtk_text_view_forward_display_line() for an explanation of
8164 * display lines vs. paragraphs.
8166 * Return value: %TRUE if @iter begins a wrapped line
8169 gtk_text_view_starts_display_line (GtkTextView *text_view,
8170 const GtkTextIter *iter)
8172 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
8173 g_return_val_if_fail (iter != NULL, FALSE);
8175 gtk_text_view_ensure_layout (text_view);
8177 return gtk_text_layout_iter_starts_line (text_view->layout, iter);
8181 * gtk_text_view_move_visually:
8182 * @text_view: a #GtkTextView
8183 * @iter: a #GtkTextIter
8184 * @count: number of characters to move (negative moves left, positive moves right)
8186 * Move the iterator a given number of characters visually, treating
8187 * it as the strong cursor position. If @count is positive, then the
8188 * new strong cursor position will be @count positions to the right of
8189 * the old cursor position. If @count is negative then the new strong
8190 * cursor position will be @count positions to the left of the old
8193 * In the presence of bidirection text, the correspondence
8194 * between logical and visual order will depend on the direction
8195 * of the current run, and there may be jumps when the cursor
8196 * is moved off of the end of a run.
8198 * Return value: %TRUE if @iter moved and is not on the end iterator
8201 gtk_text_view_move_visually (GtkTextView *text_view,
8205 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
8206 g_return_val_if_fail (iter != NULL, FALSE);
8208 gtk_text_view_ensure_layout (text_view);
8210 return gtk_text_layout_move_iter_visually (text_view->layout, iter, count);