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/.
29 #define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API
30 #include "gtkbindings.h"
32 #include "gtkimagemenuitem.h"
36 #include "gtkmenuitem.h"
37 #include "gtkseparatormenuitem.h"
38 #include "gtksettings.h"
39 #include "gtksignal.h"
41 #include "gtktextdisplay.h"
42 #include "gtktextview.h"
43 #include "gtkimmulticontext.h"
44 #include "gdk/gdkkeysyms.h"
47 /* How scrolling, validation, exposes, etc. work.
49 * The expose_event handler has the invariant that the onscreen lines
50 * have been validated.
52 * There are two ways that onscreen lines can become invalid. The first
53 * is to change which lines are onscreen. This happens when the value
54 * of a scroll adjustment changes. So the code path begins in
55 * gtk_text_view_value_changed() and goes like this:
56 * - gdk_window_scroll() to reflect the new adjustment value
57 * - validate the lines that were moved onscreen
58 * - gdk_window_process_updates() to handle the exposes immediately
60 * The second way is that you get the "invalidated" signal from the layout,
61 * indicating that lines have become invalid. This code path begins in
62 * invalidated_handler() and goes like this:
63 * - install high-priority idle which does the rest of the steps
64 * - if a scroll is pending from scroll_to_mark(), do the scroll,
65 * jumping to the gtk_text_view_value_changed() code path
66 * - otherwise, validate the onscreen lines
67 * - DO NOT process updates
69 * In both cases, validating the onscreen lines can trigger a scroll
70 * due to maintaining the first_para on the top of the screen.
71 * If validation triggers a scroll, we jump to the top of the code path
72 * for value_changed, and bail out of the current code path.
74 * Also, in size_allocate, if we invalidate some lines from changing
75 * the layout width, we need to go ahead and run the high-priority idle,
76 * because GTK sends exposes right after doing the size allocates without
77 * returning to the main loop. This is also why the high-priority idle
78 * is at a higher priority than resizing.
82 #define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->text_window)
83 #define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->text_window)
86 #define DEBUG_VALIDATION_AND_SCROLLING
89 #ifdef DEBUG_VALIDATION_AND_SCROLLING
95 struct _GtkTextPendingScroll
98 gdouble within_margin;
106 SET_SCROLL_ADJUSTMENTS,
122 PROP_PIXELS_ABOVE_LINES,
123 PROP_PIXELS_BELOW_LINES,
124 PROP_PIXELS_INSIDE_WRAP,
136 static void gtk_text_view_init (GtkTextView *text_view);
137 static void gtk_text_view_class_init (GtkTextViewClass *klass);
138 static void gtk_text_view_destroy (GtkObject *object);
139 static void gtk_text_view_finalize (GObject *object);
140 static void gtk_text_view_set_property (GObject *object,
144 static void gtk_text_view_get_property (GObject *object,
148 static void gtk_text_view_size_request (GtkWidget *widget,
149 GtkRequisition *requisition);
150 static void gtk_text_view_size_allocate (GtkWidget *widget,
151 GtkAllocation *allocation);
152 static void gtk_text_view_realize (GtkWidget *widget);
153 static void gtk_text_view_unrealize (GtkWidget *widget);
154 static void gtk_text_view_style_set (GtkWidget *widget,
155 GtkStyle *previous_style);
156 static void gtk_text_view_direction_changed (GtkWidget *widget,
157 GtkTextDirection previous_direction);
158 static gint gtk_text_view_event (GtkWidget *widget,
160 static gint gtk_text_view_key_press_event (GtkWidget *widget,
162 static gint gtk_text_view_key_release_event (GtkWidget *widget,
164 static gint gtk_text_view_button_press_event (GtkWidget *widget,
165 GdkEventButton *event);
166 static gint gtk_text_view_button_release_event (GtkWidget *widget,
167 GdkEventButton *event);
168 static gint gtk_text_view_focus_in_event (GtkWidget *widget,
169 GdkEventFocus *event);
170 static gint gtk_text_view_focus_out_event (GtkWidget *widget,
171 GdkEventFocus *event);
172 static gint gtk_text_view_motion_event (GtkWidget *widget,
173 GdkEventMotion *event);
174 static gint gtk_text_view_expose_event (GtkWidget *widget,
175 GdkEventExpose *expose);
176 static void gtk_text_view_draw_focus (GtkWidget *widget);
177 static void gtk_text_view_grab_focus (GtkWidget *widget);
179 /* Source side drag signals */
180 static void gtk_text_view_drag_begin (GtkWidget *widget,
181 GdkDragContext *context);
182 static void gtk_text_view_drag_end (GtkWidget *widget,
183 GdkDragContext *context);
184 static void gtk_text_view_drag_data_get (GtkWidget *widget,
185 GdkDragContext *context,
186 GtkSelectionData *selection_data,
189 static void gtk_text_view_drag_data_delete (GtkWidget *widget,
190 GdkDragContext *context);
192 /* Target side drag signals */
193 static void gtk_text_view_drag_leave (GtkWidget *widget,
194 GdkDragContext *context,
196 static gboolean gtk_text_view_drag_motion (GtkWidget *widget,
197 GdkDragContext *context,
201 static gboolean gtk_text_view_drag_drop (GtkWidget *widget,
202 GdkDragContext *context,
206 static void gtk_text_view_drag_data_received (GtkWidget *widget,
207 GdkDragContext *context,
210 GtkSelectionData *selection_data,
214 static void gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
216 GtkAdjustment *vadj);
217 static void gtk_text_view_popup_menu (GtkWidget *widget);
219 static void gtk_text_view_move_cursor (GtkTextView *text_view,
220 GtkMovementStep step,
222 gboolean extend_selection);
223 static void gtk_text_view_set_anchor (GtkTextView *text_view);
224 static void gtk_text_view_scroll_pages (GtkTextView *text_view,
226 static void gtk_text_view_insert_at_cursor (GtkTextView *text_view,
228 static void gtk_text_view_delete_from_cursor (GtkTextView *text_view,
231 static void gtk_text_view_cut_clipboard (GtkTextView *text_view);
232 static void gtk_text_view_copy_clipboard (GtkTextView *text_view);
233 static void gtk_text_view_paste_clipboard (GtkTextView *text_view);
234 static void gtk_text_view_toggle_overwrite (GtkTextView *text_view);
235 static void gtk_text_view_unselect (GtkTextView *text_view);
237 static void gtk_text_view_validate_onscreen (GtkTextView *text_view);
238 static void gtk_text_view_get_first_para_iter (GtkTextView *text_view,
240 static void gtk_text_view_update_layout_width (GtkTextView *text_view);
241 static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
242 GtkTextAttributes *values,
244 static void gtk_text_view_ensure_layout (GtkTextView *text_view);
245 static void gtk_text_view_destroy_layout (GtkTextView *text_view);
246 static void gtk_text_view_check_keymap_direction (GtkTextView *text_view);
247 static void gtk_text_view_reset_im_context (GtkTextView *text_view);
248 static void gtk_text_view_start_selection_drag (GtkTextView *text_view,
249 const GtkTextIter *iter,
250 GdkEventButton *event);
251 static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view,
252 GdkEventButton *event);
253 static void gtk_text_view_start_selection_dnd (GtkTextView *text_view,
254 const GtkTextIter *iter,
255 GdkEventMotion *event);
256 static void gtk_text_view_check_cursor_blink (GtkTextView *text_view);
257 static void gtk_text_view_pend_cursor_blink (GtkTextView *text_view);
258 static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view);
260 static void gtk_text_view_value_changed (GtkAdjustment *adj,
262 static void gtk_text_view_commit_handler (GtkIMContext *context,
264 GtkTextView *text_view);
265 static void gtk_text_view_commit_text (GtkTextView *text_view,
267 static void gtk_text_view_preedit_changed_handler (GtkIMContext *context,
268 GtkTextView *text_view);
269 static gboolean gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
270 GtkTextView *text_view);
271 static gboolean gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
274 GtkTextView *text_view);
276 static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
277 const GtkTextIter *location,
280 static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
283 static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
287 static GtkAdjustment* get_hadjustment (GtkTextView *text_view);
288 static GtkAdjustment* get_vadjustment (GtkTextView *text_view);
290 static void gtk_text_view_do_popup (GtkTextView *text_view,
291 GdkEventButton *event);
293 static void gtk_text_view_queue_scroll (GtkTextView *text_view,
295 gdouble within_margin,
300 static gboolean gtk_text_view_flush_scroll (GtkTextView *text_view);
301 static void gtk_text_view_update_adjustments (GtkTextView *text_view);
302 static void gtk_text_view_invalidate (GtkTextView *text_view);
304 static void gtk_text_view_update_im_spot_location (GtkTextView *text_view);
306 /* Container methods */
307 static void gtk_text_view_add (GtkContainer *container,
309 static void gtk_text_view_remove (GtkContainer *container,
311 static void gtk_text_view_forall (GtkContainer *container,
312 gboolean include_internals,
313 GtkCallback callback,
314 gpointer callback_data);
316 /* FIXME probably need the focus methods. */
318 typedef struct _GtkTextViewChild GtkTextViewChild;
320 struct _GtkTextViewChild
324 GtkTextChildAnchor *anchor;
326 gint from_top_of_line;
327 gint from_left_of_buffer;
329 /* These are ignored if anchor != NULL */
330 GtkTextWindowType type;
335 static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child,
336 GtkTextChildAnchor *anchor,
337 GtkTextLayout *layout);
338 static GtkTextViewChild* text_view_child_new_window (GtkWidget *child,
339 GtkTextWindowType type,
342 static void text_view_child_free (GtkTextViewChild *child);
343 static void text_view_child_set_parent_window (GtkTextView *text_view,
344 GtkTextViewChild *child);
346 struct _GtkTextWindow
348 GtkTextWindowType type;
351 GdkWindow *bin_window;
352 GtkRequisition requisition;
353 GdkRectangle allocation;
356 static GtkTextWindow *text_window_new (GtkTextWindowType type,
359 gint height_request);
360 static void text_window_free (GtkTextWindow *win);
361 static void text_window_realize (GtkTextWindow *win,
363 static void text_window_unrealize (GtkTextWindow *win);
364 static void text_window_size_allocate (GtkTextWindow *win,
366 static void text_window_scroll (GtkTextWindow *win,
369 static void text_window_invalidate_rect (GtkTextWindow *win,
372 static gint text_window_get_width (GtkTextWindow *win);
373 static gint text_window_get_height (GtkTextWindow *win);
374 static void text_window_get_allocation (GtkTextWindow *win,
382 TARGET_COMPOUND_TEXT,
384 TARGET_TEXT_BUFFER_CONTENTS
387 static GtkTargetEntry target_table[] = {
388 { "GTK_TEXT_BUFFER_CONTENTS", GTK_TARGET_SAME_APP,
389 TARGET_TEXT_BUFFER_CONTENTS },
390 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
391 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
392 { "TEXT", 0, TARGET_TEXT },
393 { "text/plain", 0, TARGET_STRING },
394 { "STRING", 0, TARGET_STRING }
397 static GtkContainerClass *parent_class = NULL;
398 static guint signals[LAST_SIGNAL] = { 0 };
401 gtk_text_view_get_type (void)
403 static GtkType our_type = 0;
407 static const GtkTypeInfo our_info =
410 sizeof (GtkTextView),
411 sizeof (GtkTextViewClass),
412 (GtkClassInitFunc) gtk_text_view_class_init,
413 (GtkObjectInitFunc) gtk_text_view_init,
414 /* reserved_1 */ NULL,
415 /* reserved_2 */ NULL,
416 (GtkClassInitFunc) NULL
419 our_type = gtk_type_unique (GTK_TYPE_CONTAINER, &our_info);
426 add_move_binding (GtkBindingSet *binding_set,
429 GtkMovementStep step,
432 g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
434 gtk_binding_entry_add_signal (binding_set, keyval, modmask,
438 GTK_TYPE_BOOL, FALSE);
440 /* Selection-extending version */
441 gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
445 GTK_TYPE_BOOL, TRUE);
449 gtk_text_view_class_init (GtkTextViewClass *klass)
451 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
452 GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
453 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
454 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
455 GtkBindingSet *binding_set;
457 parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
459 /* Default handlers and virtual methods
461 gobject_class->set_property = gtk_text_view_set_property;
462 gobject_class->get_property = gtk_text_view_get_property;
464 object_class->destroy = gtk_text_view_destroy;
465 gobject_class->finalize = gtk_text_view_finalize;
467 widget_class->realize = gtk_text_view_realize;
468 widget_class->unrealize = gtk_text_view_unrealize;
469 widget_class->style_set = gtk_text_view_style_set;
470 widget_class->direction_changed = gtk_text_view_direction_changed;
471 widget_class->size_request = gtk_text_view_size_request;
472 widget_class->size_allocate = gtk_text_view_size_allocate;
473 widget_class->event = gtk_text_view_event;
474 widget_class->key_press_event = gtk_text_view_key_press_event;
475 widget_class->key_release_event = gtk_text_view_key_release_event;
476 widget_class->button_press_event = gtk_text_view_button_press_event;
477 widget_class->button_release_event = gtk_text_view_button_release_event;
478 widget_class->focus_in_event = gtk_text_view_focus_in_event;
479 widget_class->focus_out_event = gtk_text_view_focus_out_event;
480 widget_class->motion_notify_event = gtk_text_view_motion_event;
481 widget_class->expose_event = gtk_text_view_expose_event;
482 widget_class->grab_focus = gtk_text_view_grab_focus;
484 widget_class->drag_begin = gtk_text_view_drag_begin;
485 widget_class->drag_end = gtk_text_view_drag_end;
486 widget_class->drag_data_get = gtk_text_view_drag_data_get;
487 widget_class->drag_data_delete = gtk_text_view_drag_data_delete;
489 widget_class->drag_leave = gtk_text_view_drag_leave;
490 widget_class->drag_motion = gtk_text_view_drag_motion;
491 widget_class->drag_drop = gtk_text_view_drag_drop;
492 widget_class->drag_data_received = gtk_text_view_drag_data_received;
494 widget_class->popup_menu = gtk_text_view_popup_menu;
496 container_class->add = gtk_text_view_add;
497 container_class->remove = gtk_text_view_remove;
498 container_class->forall = gtk_text_view_forall;
500 klass->move_cursor = gtk_text_view_move_cursor;
501 klass->set_anchor = gtk_text_view_set_anchor;
502 klass->insert_at_cursor = gtk_text_view_insert_at_cursor;
503 klass->delete_from_cursor = gtk_text_view_delete_from_cursor;
504 klass->cut_clipboard = gtk_text_view_cut_clipboard;
505 klass->copy_clipboard = gtk_text_view_copy_clipboard;
506 klass->paste_clipboard = gtk_text_view_paste_clipboard;
507 klass->toggle_overwrite = gtk_text_view_toggle_overwrite;
508 klass->set_scroll_adjustments = gtk_text_view_set_scroll_adjustments;
514 g_object_class_install_property (gobject_class,
515 PROP_PIXELS_ABOVE_LINES,
516 g_param_spec_int ("pixels_above_lines",
517 _("Pixels Above Lines"),
518 _("Pixels of blank space above paragraphs"),
524 g_object_class_install_property (gobject_class,
525 PROP_PIXELS_BELOW_LINES,
526 g_param_spec_int ("pixels_below_lines",
527 _("Pixels Below Lines"),
528 _("Pixels of blank space below paragraphs"),
534 g_object_class_install_property (gobject_class,
535 PROP_PIXELS_INSIDE_WRAP,
536 g_param_spec_int ("pixels_inside_wrap",
537 _("Pixels Inside Wrap"),
538 _("Pixels of blank space between wrapped lines in a paragraph"),
544 g_object_class_install_property (gobject_class,
546 g_param_spec_boolean ("editable",
548 _("Whether the text can be modified by the user"),
552 g_object_class_install_property (gobject_class,
554 g_param_spec_enum ("wrap_mode",
556 _("Whether to wrap lines never, at word boundaries, or at character boundaries"),
561 g_object_class_install_property (gobject_class,
563 g_param_spec_enum ("justification",
565 _("Left, right, or center justification"),
566 GTK_TYPE_JUSTIFICATION,
570 g_object_class_install_property (gobject_class,
572 g_param_spec_int ("left_margin",
574 _("Width of the left margin in pixels"),
580 g_object_class_install_property (gobject_class,
582 g_param_spec_int ("right_margin",
584 _("Width of the right margin in pixels"),
590 g_object_class_install_property (gobject_class,
592 g_param_spec_int ("indent",
594 _("Amount to indent the paragraph, in pixels"),
600 g_object_class_install_property (gobject_class,
602 g_param_spec_boxed ("tabs",
604 _("Custom tabs for this text"),
605 PANGO_TYPE_TAB_ARRAY,
608 g_object_class_install_property (gobject_class,
610 g_param_spec_boolean ("cursor_visible",
612 _("If the insertion cursor is shown"),
621 gtk_widget_class_install_style_property (widget_class,
622 g_param_spec_boxed ("cursor_color",
624 _("Color with which to draw insertion cursor"),
633 signals[MOVE_CURSOR] =
634 gtk_signal_new ("move_cursor",
635 GTK_RUN_LAST | GTK_RUN_ACTION,
636 GTK_CLASS_TYPE (object_class),
637 GTK_SIGNAL_OFFSET (GtkTextViewClass, move_cursor),
638 gtk_marshal_VOID__ENUM_INT_BOOLEAN,
639 GTK_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, GTK_TYPE_INT, GTK_TYPE_BOOL);
641 signals[SET_ANCHOR] =
642 gtk_signal_new ("set_anchor",
643 GTK_RUN_LAST | GTK_RUN_ACTION,
644 GTK_CLASS_TYPE (object_class),
645 GTK_SIGNAL_OFFSET (GtkTextViewClass, set_anchor),
646 gtk_marshal_VOID__VOID,
649 signals[INSERT_AT_CURSOR] =
650 gtk_signal_new ("insert_at_cursor",
651 GTK_RUN_LAST | GTK_RUN_ACTION,
652 GTK_CLASS_TYPE (object_class),
653 GTK_SIGNAL_OFFSET (GtkTextViewClass, insert_at_cursor),
654 gtk_marshal_VOID__STRING,
655 GTK_TYPE_NONE, 1, GTK_TYPE_STRING);
657 signals[DELETE_FROM_CURSOR] =
658 gtk_signal_new ("delete_from_cursor",
659 GTK_RUN_LAST | GTK_RUN_ACTION,
660 GTK_CLASS_TYPE (object_class),
661 GTK_SIGNAL_OFFSET (GtkTextViewClass, delete_from_cursor),
662 gtk_marshal_VOID__ENUM_INT,
663 GTK_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, GTK_TYPE_INT);
665 signals[CUT_CLIPBOARD] =
666 gtk_signal_new ("cut_clipboard",
667 GTK_RUN_LAST | GTK_RUN_ACTION,
668 GTK_CLASS_TYPE (object_class),
669 GTK_SIGNAL_OFFSET (GtkTextViewClass, cut_clipboard),
670 gtk_marshal_VOID__VOID,
673 signals[COPY_CLIPBOARD] =
674 gtk_signal_new ("copy_clipboard",
675 GTK_RUN_LAST | GTK_RUN_ACTION,
676 GTK_CLASS_TYPE (object_class),
677 GTK_SIGNAL_OFFSET (GtkTextViewClass, copy_clipboard),
678 gtk_marshal_VOID__VOID,
681 signals[PASTE_CLIPBOARD] =
682 gtk_signal_new ("paste_clipboard",
683 GTK_RUN_LAST | GTK_RUN_ACTION,
684 GTK_CLASS_TYPE (object_class),
685 GTK_SIGNAL_OFFSET (GtkTextViewClass, paste_clipboard),
686 gtk_marshal_VOID__VOID,
689 signals[TOGGLE_OVERWRITE] =
690 gtk_signal_new ("toggle_overwrite",
691 GTK_RUN_LAST | GTK_RUN_ACTION,
692 GTK_CLASS_TYPE (object_class),
693 GTK_SIGNAL_OFFSET (GtkTextViewClass, toggle_overwrite),
694 gtk_marshal_VOID__VOID,
697 signals[SET_SCROLL_ADJUSTMENTS] =
698 gtk_signal_new ("set_scroll_adjustments",
700 GTK_CLASS_TYPE (object_class),
701 GTK_SIGNAL_OFFSET (GtkTextViewClass, set_scroll_adjustments),
702 gtk_marshal_VOID__OBJECT_OBJECT,
703 GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
704 widget_class->set_scroll_adjustments_signal = signals[SET_SCROLL_ADJUSTMENTS];
706 signals[POPULATE_POPUP] =
707 gtk_signal_new ("populate_popup",
709 GTK_CLASS_TYPE (object_class),
710 GTK_SIGNAL_OFFSET (GtkTextViewClass, populate_popup),
711 gtk_marshal_VOID__OBJECT,
712 GTK_TYPE_NONE, 1, GTK_TYPE_MENU);
718 binding_set = gtk_binding_set_by_class (klass);
720 /* Moving the insertion point */
721 add_move_binding (binding_set, GDK_Right, 0,
722 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
724 add_move_binding (binding_set, GDK_KP_Right, 0,
725 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
727 add_move_binding (binding_set, GDK_Left, 0,
728 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
730 add_move_binding (binding_set, GDK_KP_Left, 0,
731 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
733 add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK,
734 GTK_MOVEMENT_LOGICAL_POSITIONS, 1);
736 add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK,
737 GTK_MOVEMENT_LOGICAL_POSITIONS, -1);
739 add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
740 GTK_MOVEMENT_WORDS, 1);
742 add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
743 GTK_MOVEMENT_WORDS, 1);
745 add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
746 GTK_MOVEMENT_WORDS, -1);
748 add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
749 GTK_MOVEMENT_WORDS, 1);
751 /* Eventually we want to move by display lines, not paragraphs */
752 add_move_binding (binding_set, GDK_Up, 0,
753 GTK_MOVEMENT_DISPLAY_LINES, -1);
755 add_move_binding (binding_set, GDK_KP_Up, 0,
756 GTK_MOVEMENT_DISPLAY_LINES, -1);
758 add_move_binding (binding_set, GDK_Down, 0,
759 GTK_MOVEMENT_DISPLAY_LINES, 1);
761 add_move_binding (binding_set, GDK_KP_Down, 0,
762 GTK_MOVEMENT_DISPLAY_LINES, 1);
764 add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK,
765 GTK_MOVEMENT_DISPLAY_LINES, -1);
767 add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK,
768 GTK_MOVEMENT_DISPLAY_LINES, 1);
770 add_move_binding (binding_set, GDK_Up, GDK_CONTROL_MASK,
771 GTK_MOVEMENT_PARAGRAPHS, -1);
773 add_move_binding (binding_set, GDK_KP_Up, GDK_CONTROL_MASK,
774 GTK_MOVEMENT_PARAGRAPHS, -1);
776 add_move_binding (binding_set, GDK_Down, GDK_CONTROL_MASK,
777 GTK_MOVEMENT_PARAGRAPHS, 1);
779 add_move_binding (binding_set, GDK_KP_Down, GDK_CONTROL_MASK,
780 GTK_MOVEMENT_PARAGRAPHS, 1);
782 add_move_binding (binding_set, GDK_a, GDK_CONTROL_MASK,
783 GTK_MOVEMENT_PARAGRAPH_ENDS, -1);
785 add_move_binding (binding_set, GDK_e, GDK_CONTROL_MASK,
786 GTK_MOVEMENT_PARAGRAPH_ENDS, 1);
788 add_move_binding (binding_set, GDK_f, GDK_MOD1_MASK,
789 GTK_MOVEMENT_WORDS, 1);
791 add_move_binding (binding_set, GDK_b, GDK_MOD1_MASK,
792 GTK_MOVEMENT_WORDS, -1);
794 add_move_binding (binding_set, GDK_Home, 0,
795 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
797 add_move_binding (binding_set, GDK_KP_Home, 0,
798 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
800 add_move_binding (binding_set, GDK_End, 0,
801 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
803 add_move_binding (binding_set, GDK_KP_End, 0,
804 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
806 add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
807 GTK_MOVEMENT_BUFFER_ENDS, -1);
809 add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
810 GTK_MOVEMENT_BUFFER_ENDS, -1);
812 add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
813 GTK_MOVEMENT_BUFFER_ENDS, 1);
815 add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
816 GTK_MOVEMENT_BUFFER_ENDS, 1);
818 add_move_binding (binding_set, GDK_Page_Up, 0,
819 GTK_MOVEMENT_PAGES, -1);
821 add_move_binding (binding_set, GDK_KP_Page_Up, 0,
822 GTK_MOVEMENT_PAGES, -1);
824 add_move_binding (binding_set, GDK_Page_Down, 0,
825 GTK_MOVEMENT_PAGES, 1);
827 add_move_binding (binding_set, GDK_KP_Page_Down, 0,
828 GTK_MOVEMENT_PAGES, 1);
830 /* Setting the cut/paste/copy anchor */
831 gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK,
833 gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_CONTROL_MASK,
837 gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0,
838 "delete_from_cursor", 2,
839 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
842 gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, 0,
843 "delete_from_cursor", 2,
844 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
847 gtk_binding_entry_add_signal (binding_set, GDK_d, GDK_CONTROL_MASK,
848 "delete_from_cursor", 2,
849 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
852 gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0,
853 "delete_from_cursor", 2,
854 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
857 gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_CONTROL_MASK,
858 "delete_from_cursor", 2,
859 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
862 gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, GDK_CONTROL_MASK,
863 "delete_from_cursor", 2,
864 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
867 gtk_binding_entry_add_signal (binding_set, GDK_d, GDK_MOD1_MASK,
868 "delete_from_cursor", 2,
869 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
872 gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK,
873 "delete_from_cursor", 2,
874 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
877 gtk_binding_entry_add_signal (binding_set, GDK_k, GDK_CONTROL_MASK,
878 "delete_from_cursor", 2,
879 GTK_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
882 gtk_binding_entry_add_signal (binding_set, GDK_u, GDK_CONTROL_MASK,
883 "delete_from_cursor", 2,
884 GTK_TYPE_ENUM, GTK_DELETE_PARAGRAPHS,
887 gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_MOD1_MASK,
888 "delete_from_cursor", 2,
889 GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE,
891 gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_MOD1_MASK,
892 "delete_from_cursor", 2,
893 GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE,
895 gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_MOD1_MASK,
896 "insert_at_cursor", 1,
897 GTK_TYPE_STRING, " ");
898 gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_MOD1_MASK,
899 "insert_at_cursor", 1,
900 GTK_TYPE_STRING, " ");
902 gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_MOD1_MASK,
903 "delete_from_cursor", 2,
904 GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE,
909 gtk_binding_entry_add_signal (binding_set, GDK_x, GDK_CONTROL_MASK,
912 gtk_binding_entry_add_signal (binding_set, GDK_w, GDK_CONTROL_MASK,
915 gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
916 "copy_clipboard", 0);
918 gtk_binding_entry_add_signal (binding_set, GDK_v, GDK_CONTROL_MASK,
919 "paste_clipboard", 0);
921 gtk_binding_entry_add_signal (binding_set, GDK_y, GDK_CONTROL_MASK,
922 "paste_clipboard", 0);
925 gtk_binding_entry_add_signal (binding_set, GDK_Insert, 0,
926 "toggle_overwrite", 0);
927 gtk_binding_entry_add_signal (binding_set, GDK_KP_Insert, 0,
928 "toggle_overwrite", 0);
932 gtk_text_view_init (GtkTextView *text_view)
936 widget = GTK_WIDGET (text_view);
938 GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
940 /* Set up default style */
941 text_view->wrap_mode = GTK_WRAP_NONE;
942 text_view->pixels_above_lines = 0;
943 text_view->pixels_below_lines = 0;
944 text_view->pixels_inside_wrap = 0;
945 text_view->justify = GTK_JUSTIFY_LEFT;
946 text_view->left_margin = 0;
947 text_view->right_margin = 0;
948 text_view->indent = 0;
949 text_view->tabs = NULL;
950 text_view->editable = TRUE;
952 gtk_drag_dest_set (widget,
954 target_table, G_N_ELEMENTS (target_table),
955 GDK_ACTION_COPY | GDK_ACTION_MOVE);
957 text_view->virtual_cursor_x = -1;
958 text_view->virtual_cursor_y = -1;
960 /* This object is completely private. No external entity can gain a reference
961 * to it; so we create it here and destroy it in finalize ().
963 text_view->im_context = gtk_im_multicontext_new ();
965 g_signal_connect (G_OBJECT (text_view->im_context), "commit",
966 G_CALLBACK (gtk_text_view_commit_handler), text_view);
967 g_signal_connect (G_OBJECT (text_view->im_context), "preedit_changed",
968 G_CALLBACK (gtk_text_view_preedit_changed_handler), text_view);
969 g_signal_connect (G_OBJECT (text_view->im_context), "retrieve_surrounding",
970 G_CALLBACK (gtk_text_view_retrieve_surrounding_handler), text_view);
971 g_signal_connect (G_OBJECT (text_view->im_context), "delete_surrounding",
972 G_CALLBACK (gtk_text_view_delete_surrounding_handler), text_view);
974 text_view->cursor_visible = TRUE;
976 text_view->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT,
979 text_view->drag_start_x = -1;
980 text_view->drag_start_y = -1;
982 text_view->pending_place_cursor_button = 0;
984 /* We handle all our own redrawing */
985 gtk_widget_set_redraw_on_allocate (widget, FALSE);
991 * Creates a new #GtkTextView. If you don't call gtk_text_view_set_buffer()
992 * before using the text view, an empty default buffer will be created
993 * for you. Get the buffer with gtk_text_view_get_buffer(). If you want
994 * to specify your own buffer, consider gtk_text_view_new_with_buffer().
996 * Return value: a new #GtkTextView
999 gtk_text_view_new (void)
1001 return GTK_WIDGET (gtk_type_new (gtk_text_view_get_type ()));
1005 * gtk_text_view_new_with_buffer:
1006 * @buffer: a #GtkTextBuffer
1008 * Creates a new #GtkTextView widget displaying the buffer
1009 * @buffer. One buffer can be shared among many widgets.
1010 * @buffer may be NULL to create a default buffer, in which case
1011 * this function is equivalent to gtk_text_view_new(). The
1012 * text view adds its own reference count to the buffer; it does not
1013 * take over an existing reference.
1015 * Return value: a new #GtkTextView.
1018 gtk_text_view_new_with_buffer (GtkTextBuffer *buffer)
1020 GtkTextView *text_view;
1022 text_view = (GtkTextView*)gtk_text_view_new ();
1024 gtk_text_view_set_buffer (text_view, buffer);
1026 return GTK_WIDGET (text_view);
1030 * gtk_text_view_set_buffer:
1031 * @text_view: a #GtkTextView
1032 * @buffer: a #GtkTextBuffer
1034 * Sets @buffer as the buffer being displayed by @text_view. The previous
1035 * buffer displayed by the text view is unreferenced, and a reference is
1036 * added to @buffer. If you owned a reference to @buffer before passing it
1037 * to this function, you must remove that reference yourself; #GtkTextView
1038 * will not "adopt" it.
1042 gtk_text_view_set_buffer (GtkTextView *text_view,
1043 GtkTextBuffer *buffer)
1045 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1046 g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer));
1048 if (text_view->buffer == buffer)
1051 if (text_view->buffer != NULL)
1053 /* Destroy all anchored children */
1057 copy = g_slist_copy (text_view->children);
1059 while (tmp_list != NULL)
1061 GtkTextViewChild *vc = tmp_list->data;
1065 gtk_widget_destroy (vc->widget);
1066 /* vc may now be invalid! */
1069 tmp_list = g_slist_next (tmp_list);
1072 g_slist_free (copy);
1074 g_signal_handlers_disconnect_by_func (G_OBJECT (text_view->buffer),
1075 gtk_text_view_mark_set_handler, text_view);
1076 g_object_unref (G_OBJECT (text_view->buffer));
1077 text_view->dnd_mark = NULL;
1079 if (GTK_WIDGET_REALIZED (text_view))
1080 gtk_text_buffer_remove_selection_clipboard (text_view->buffer,
1081 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
1084 text_view->buffer = buffer;
1090 g_object_ref (G_OBJECT (buffer));
1092 if (text_view->layout)
1093 gtk_text_layout_set_buffer (text_view->layout, buffer);
1095 gtk_text_buffer_get_iter_at_offset (text_view->buffer, &start, 0);
1097 text_view->dnd_mark = gtk_text_buffer_create_mark (text_view->buffer,
1101 text_view->first_para_mark = gtk_text_buffer_create_mark (text_view->buffer,
1105 text_view->first_para_pixels = 0;
1107 g_signal_connect (G_OBJECT (text_view->buffer), "mark_set",
1108 G_CALLBACK (gtk_text_view_mark_set_handler), text_view);
1110 if (GTK_WIDGET_REALIZED (text_view))
1111 gtk_text_buffer_add_selection_clipboard (text_view->buffer,
1112 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
1115 if (GTK_WIDGET_VISIBLE (text_view))
1116 gtk_widget_queue_draw (GTK_WIDGET (text_view));
1118 gtk_text_view_invalidate (text_view);
1121 static GtkTextBuffer*
1122 get_buffer (GtkTextView *text_view)
1124 if (text_view->buffer == NULL)
1127 b = gtk_text_buffer_new (NULL);
1128 gtk_text_view_set_buffer (text_view, b);
1129 g_object_unref (G_OBJECT (b));
1132 return text_view->buffer;
1136 * gtk_text_view_get_buffer:
1137 * @text_view: a #GtkTextView
1139 * Returns the #GtkTextBuffer being displayed by this text view.
1140 * The reference count on the buffer is not incremented; the caller
1141 * of this function won't own a new reference.
1143 * Return value: a #GtkTextBuffer
1146 gtk_text_view_get_buffer (GtkTextView *text_view)
1148 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
1150 return get_buffer (text_view);
1154 * gtk_text_view_get_iter_at_location:
1155 * @text_view: a #GtkTextView
1156 * @iter: a #GtkTextIter
1157 * @x: x position, in buffer coordinates
1158 * @y: y position, in buffer coordinates
1160 * Retrieves the iterator at buffer coordinates @x and @y. Buffer
1161 * coordinates are coordinates for the entire buffer, not just the
1162 * currently-displayed portion. If you have coordinates from an
1163 * event, you have to convert those to buffer coordinates with
1164 * gtk_text_view_window_to_buffer_coords().
1168 gtk_text_view_get_iter_at_location (GtkTextView *text_view,
1173 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1174 g_return_if_fail (iter != NULL);
1175 g_return_if_fail (text_view->layout != NULL);
1177 gtk_text_layout_get_iter_at_pixel (text_view->layout,
1184 * gtk_text_view_get_iter_location:
1185 * @text_view: a #GtkTextView
1186 * @iter: a #GtkTextIter
1187 * @location: bounds of the character at @iter
1189 * Gets a rectangle which roughly contains the character at @iter.
1190 * The rectangle position is in buffer coordinates; use
1191 * gtk_text_view_buffer_to_window_coords() to convert these
1192 * coordinates to coordinates for one of the windows in the text view.
1196 gtk_text_view_get_iter_location (GtkTextView *text_view,
1197 const GtkTextIter *iter,
1198 GdkRectangle *location)
1200 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1201 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1203 gtk_text_layout_get_iter_location (text_view->layout, iter, location);
1207 * gtk_text_view_get_line_yrange:
1208 * @text_view: a #GtkTextView
1209 * @iter: a #GtkTextIter
1210 * @y: return location for a y coordinate
1211 * @height: return location for a height
1213 * Gets the y coordinate of the top of the line containing @iter,
1214 * and the height of the line. The coordinate is a buffer coordinate;
1215 * convert to window coordinates with gtk_text_view_buffer_to_window_coords().
1219 gtk_text_view_get_line_yrange (GtkTextView *text_view,
1220 const GtkTextIter *iter,
1224 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1225 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1227 gtk_text_layout_get_line_yrange (text_view->layout,
1234 * gtk_text_view_get_line_at_y:
1235 * @text_view: a #GtkTextView
1236 * @target_iter: a #GtkTextIter
1237 * @y: a y coordinate
1238 * @line_top: return location for top coordinate of the line
1240 * Gets the #GtkTextIter at the start of the line containing
1241 * the coordinate @y. @y is in buffer coordinates, convert from
1242 * window coordinates with gtk_text_view_window_to_buffer_coords().
1243 * If non-%NULL, @line_top will be filled with the coordinate of the top
1247 gtk_text_view_get_line_at_y (GtkTextView *text_view,
1248 GtkTextIter *target_iter,
1252 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1254 gtk_text_layout_get_line_at_y (text_view->layout,
1261 set_adjustment_clamped (GtkAdjustment *adj, gdouble val)
1263 DV (g_print (" Setting adj to raw value %g\n", val));
1265 /* We don't really want to clamp to upper; we want to clamp to
1266 upper - page_size which is the highest value the scrollbar
1267 will let us reach. */
1268 if (val > (adj->upper - adj->page_size))
1269 val = adj->upper - adj->page_size;
1271 if (val < adj->lower)
1274 if (val != adj->value)
1276 DV (g_print (" Setting adj to clamped value %g\n", val));
1277 gtk_adjustment_set_value (adj, val);
1285 * gtk_text_view_scroll_to_iter:
1286 * @text_view: a #GtkTextView
1287 * @iter: a #GtkTextIter
1288 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1289 * @use_align: whether to use alignment arguments (if %FALSE, just get the mark onscreen)
1290 * @xalign: horizontal alignment of mark within visible area.
1291 * @yalign: vertical alignment of mark within visible area
1293 * Scrolls @text_view so that @iter is on the screen in the position
1294 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1295 * left or top, 1.0 indicates right or bottom, 0.5 means center. If @use_align
1296 * is %FALSE, the text scrolls the minimal distance to get the mark onscreen,
1297 * possibly not scrolling at all. The effective screen for purposes
1298 * of this function is reduced by a margin of size @within_margin.
1299 * NOTE: This function uses the currently-computed height of the
1300 * lines in the text buffer. Note that line heights are computed
1301 * in an idle handler; so this function may not have the desired effect
1302 * if it's called before the height computations. To avoid oddness,
1303 * consider using gtk_text_view_scroll_to_mark() which saves a point
1304 * to be scrolled to after line validation.
1306 * Return value: %TRUE if scrolling occurred
1309 gtk_text_view_scroll_to_iter (GtkTextView *text_view,
1311 gdouble within_margin,
1317 GdkRectangle screen;
1322 gboolean retval = FALSE;
1324 gint screen_xoffset, screen_yoffset;
1325 gint current_x_scroll, current_y_scroll;
1327 /* FIXME why don't we do the validate-at-scroll-destination thing
1328 * from flush_scroll in this function? I think it wasn't done before
1329 * because changed_handler was screwed up, but I could be wrong.
1332 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1333 g_return_val_if_fail (iter != NULL, FALSE);
1334 g_return_val_if_fail (within_margin >= 0.0 && within_margin < 0.5, FALSE);
1335 g_return_val_if_fail (xalign >= 0.0 && xalign <= 1.0, FALSE);
1336 g_return_val_if_fail (yalign >= 0.0 && yalign <= 1.0, FALSE);
1338 widget = GTK_WIDGET (text_view);
1340 DV(g_print(G_STRLOC"\n"));
1342 gtk_text_layout_get_iter_location (text_view->layout,
1346 DV (g_print (" target rect %d,%d %d x %d\n", rect.x, rect.y, rect.width, rect.height));
1348 current_x_scroll = text_view->xoffset;
1349 current_y_scroll = text_view->yoffset;
1351 screen.x = current_x_scroll;
1352 screen.y = current_y_scroll;
1353 screen.width = SCREEN_WIDTH (widget);
1354 screen.height = SCREEN_HEIGHT (widget);
1356 screen_xoffset = screen.width * within_margin;
1357 screen_yoffset = screen.height * within_margin;
1359 screen.x += screen_xoffset;
1360 screen.y += screen_yoffset;
1361 screen.width -= screen_xoffset * 2;
1362 screen.height -= screen_yoffset * 2;
1364 /* paranoia check */
1365 if (screen.width < 1)
1367 if (screen.height < 1)
1370 screen_right = screen.x + screen.width;
1371 screen_bottom = screen.y + screen.height;
1373 /* The alignment affects the point in the target character that we
1374 * choose to align. If we're doing right/bottom alignment, we align
1375 * the right/bottom edge of the character the mark is at; if we're
1376 * doing left/top we align the left/top edge of the character; if
1377 * we're doing center alignment we align the center of the
1381 /* Vertical scroll */
1384 scroll_dest = current_y_scroll;
1388 scroll_dest = rect.y + (rect.height * yalign) - (screen.height * yalign);
1390 /* if scroll_dest < screen.y, we move a negative increment (up),
1391 * else a positive increment (down)
1393 scroll_inc = scroll_dest - screen.y + screen_yoffset;
1397 /* move minimum to get onscreen */
1398 if (rect.y < screen.y)
1400 scroll_dest = rect.y;
1401 scroll_inc = scroll_dest - screen.y - screen_yoffset;
1403 else if ((rect.y + rect.height) > screen_bottom)
1405 scroll_dest = rect.y + rect.height;
1406 scroll_inc = scroll_dest - screen_bottom + screen_yoffset;
1410 if (scroll_inc != 0)
1412 retval = set_adjustment_clamped (get_vadjustment (text_view),
1413 current_y_scroll + scroll_inc);
1415 DV (g_print (" vert increment %d\n", scroll_inc));
1418 /* Horizontal scroll */
1421 scroll_dest = current_x_scroll;
1425 scroll_dest = rect.x + (rect.width * xalign) - (screen.width * xalign);
1427 /* if scroll_dest < screen.y, we move a negative increment (left),
1428 * else a positive increment (right)
1430 scroll_inc = scroll_dest - screen.x + screen_xoffset;
1434 /* move minimum to get onscreen */
1435 if (rect.x < screen.x)
1437 scroll_dest = rect.x;
1438 scroll_inc = scroll_dest - screen.x - screen_xoffset;
1440 else if ((rect.x + rect.width) > screen_right)
1442 scroll_dest = rect.x + rect.width;
1443 scroll_inc = scroll_dest - screen_right + screen_xoffset;
1447 if (scroll_inc != 0)
1449 retval = set_adjustment_clamped (get_hadjustment (text_view),
1450 current_x_scroll + scroll_inc);
1452 DV (g_print (" horiz increment %d\n", scroll_inc));
1456 DV(g_print (">Actually scrolled ("G_STRLOC")\n"));
1458 DV(g_print (">Didn't end up scrolling ("G_STRLOC")\n"));
1464 free_pending_scroll (GtkTextPendingScroll *scroll)
1466 if (!gtk_text_mark_get_deleted (scroll->mark))
1467 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark),
1469 g_object_unref (G_OBJECT (scroll->mark));
1474 gtk_text_view_queue_scroll (GtkTextView *text_view,
1476 gdouble within_margin,
1482 GtkTextPendingScroll *scroll;
1484 DV(g_print(G_STRLOC"\n"));
1486 scroll = g_new (GtkTextPendingScroll, 1);
1488 scroll->within_margin = within_margin;
1489 scroll->use_align = use_align;
1490 scroll->xalign = xalign;
1491 scroll->yalign = yalign;
1493 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
1495 scroll->mark = gtk_text_buffer_create_mark (get_buffer (text_view),
1498 gtk_text_mark_get_left_gravity (mark));
1500 g_object_ref (G_OBJECT (scroll->mark));
1502 if (text_view->pending_scroll)
1503 free_pending_scroll (text_view->pending_scroll);
1505 text_view->pending_scroll = scroll;
1509 gtk_text_view_flush_scroll (GtkTextView *text_view)
1512 GtkTextPendingScroll *scroll;
1515 DV(g_print(G_STRLOC"\n"));
1517 if (text_view->pending_scroll == NULL)
1520 scroll = text_view->pending_scroll;
1522 /* avoid recursion */
1523 text_view->pending_scroll = NULL;
1525 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, scroll->mark);
1527 /* Validate arbitrary area around the scroll destination, so the adjustment
1528 * can meaningfully point into that area
1530 DV(g_print (">Validating scroll destination ("G_STRLOC")\n"));
1531 gtk_text_layout_validate_yrange (text_view->layout, &iter, -300, 300);
1533 DV(g_print (">Done validating scroll destination ("G_STRLOC")\n"));
1535 /* Ensure we have updated width/height */
1536 gtk_text_view_update_adjustments (text_view);
1538 retval = gtk_text_view_scroll_to_iter (text_view,
1540 scroll->within_margin,
1545 free_pending_scroll (scroll);
1551 gtk_text_view_set_adjustment_upper (GtkAdjustment *adj, gdouble upper)
1553 if (upper != adj->upper)
1555 gdouble min = MAX (0.0, upper - adj->page_size);
1556 gboolean value_changed = FALSE;
1560 if (adj->value > min)
1563 value_changed = TRUE;
1566 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
1567 DV(g_print(">Changed adj upper to %g ("G_STRLOC")\n", upper));
1571 DV(g_print(">Changed adj value because upper decreased ("G_STRLOC")\n"));
1572 gtk_signal_emit_by_name (GTK_OBJECT (adj), "value_changed");
1578 gtk_text_view_update_adjustments (GtkTextView *text_view)
1580 gint width = 0, height = 0;
1582 DV(g_print(">Updating adjustments ("G_STRLOC")\n"));
1584 if (text_view->layout)
1585 gtk_text_layout_get_size (text_view->layout, &width, &height);
1587 if (text_view->width != width || text_view->height != height)
1589 text_view->width = width;
1590 text_view->height = height;
1592 gtk_text_view_set_adjustment_upper (get_hadjustment (text_view),
1593 MAX (SCREEN_WIDTH (text_view), width));
1594 gtk_text_view_set_adjustment_upper (get_vadjustment (text_view),
1595 MAX (SCREEN_HEIGHT (text_view), height));
1597 /* hadj/vadj exist since we called get_hadjustment/get_vadjustment above */
1599 /* Set up the step sizes; we'll say that a page is
1600 our allocation minus one step, and a step is
1601 1/10 of our allocation. */
1602 text_view->hadjustment->step_increment =
1603 SCREEN_WIDTH (text_view) / 10.0;
1604 text_view->hadjustment->page_increment =
1605 SCREEN_WIDTH (text_view) * 0.9;
1607 text_view->vadjustment->step_increment =
1608 SCREEN_HEIGHT (text_view) / 10.0;
1609 text_view->vadjustment->page_increment =
1610 SCREEN_HEIGHT (text_view) * 0.9;
1612 gtk_signal_emit_by_name (GTK_OBJECT (get_hadjustment (text_view)), "changed");
1613 gtk_signal_emit_by_name (GTK_OBJECT (get_hadjustment (text_view)), "changed");
1618 gtk_text_view_update_layout_width (GtkTextView *text_view)
1620 DV(g_print(">Updating layout width ("G_STRLOC")\n"));
1622 gtk_text_view_ensure_layout (text_view);
1624 gtk_text_layout_set_screen_width (text_view->layout,
1625 SCREEN_WIDTH (text_view));
1629 gtk_text_view_update_im_spot_location (GtkTextView *text_view)
1632 gint cursor_x_pos, cursor_y_pos;
1634 if (text_view->layout == NULL)
1637 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
1639 area.x = cursor_x_pos;
1640 area.y = cursor_y_pos;
1641 area.width = area.height = 0;
1643 gtk_im_context_set_cursor_location (text_view->im_context, &area);
1647 * gtk_text_view_scroll_to_mark:
1648 * @text_view: a #GtkTextView
1649 * @mark: a #GtkTextMark
1650 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1651 * @use_align: whether to use alignment arguments (if %FALSE, just get the mark onscreen)
1652 * @xalign: horizontal alignment of mark within visible area.
1653 * @yalign: vertical alignment of mark within visible area
1655 * Scrolls @text_view so that @mark is on the screen in the position
1656 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1657 * left or top, 1.0 indicates right or bottom, 0.5 means center. If @use_align
1658 * is %FALSE, the text scrolls the minimal distance to get the mark onscreen,
1659 * possibly not scrolling at all. The effective screen for purposes
1660 * of this function is reduced by a margin of size @within_margin.
1664 gtk_text_view_scroll_to_mark (GtkTextView *text_view,
1666 gdouble within_margin,
1671 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1672 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
1673 g_return_if_fail (within_margin >= 0.0 && within_margin < 0.5);
1674 g_return_if_fail (xalign >= 0.0 && xalign <= 1.0);
1675 g_return_if_fail (yalign >= 0.0 && yalign <= 1.0);
1677 gtk_text_view_queue_scroll (text_view, mark,
1683 /* If no validation is pending, we need to go ahead and force an
1686 if (text_view->layout &&
1687 gtk_text_layout_is_valid (text_view->layout))
1688 gtk_text_view_flush_scroll (text_view);
1692 gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
1695 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1696 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
1698 gtk_text_view_scroll_to_mark (text_view, mark, 0.0, FALSE, 0.0, 0.0);
1702 clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter)
1704 GdkRectangle visible_rect;
1705 gtk_text_view_get_visible_rect (text_view, &visible_rect);
1707 return gtk_text_layout_clamp_iter_to_vrange (text_view->layout, iter,
1709 visible_rect.y + visible_rect.height);
1713 * gtk_text_view_move_mark_onscreen:
1714 * @text_view: a #GtkTextView
1715 * @mark: a #GtkTextMark
1717 * Moves a mark within the buffer so that it's
1718 * located within the currently-visible text area.
1720 * Return value: %TRUE if the mark moved (wasn't already onscreen)
1723 gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
1728 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1729 g_return_val_if_fail (mark != NULL, FALSE);
1731 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
1733 if (clamp_iter_onscreen (text_view, &iter))
1735 gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter);
1743 * gtk_text_view_get_visible_rect:
1744 * @text_view: a #GtkTextView
1745 * @visible_rect: rectangle to fill
1747 * Fills @visible_rect with the currently-visible
1748 * region of the buffer, in buffer coordinates. Convert to window coordinates
1749 * with gtk_text_view_buffer_to_window_coords().
1752 gtk_text_view_get_visible_rect (GtkTextView *text_view,
1753 GdkRectangle *visible_rect)
1757 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1759 widget = GTK_WIDGET (text_view);
1763 visible_rect->x = text_view->xoffset;
1764 visible_rect->y = text_view->yoffset;
1765 visible_rect->width = SCREEN_WIDTH (widget);
1766 visible_rect->height = SCREEN_HEIGHT (widget);
1768 DV(g_print(" visible rect: %d,%d %d x %d\n",
1771 visible_rect->width,
1772 visible_rect->height));
1777 * gtk_text_view_set_wrap_mode:
1778 * @text_view: a #GtkTextView
1779 * @wrap_mode: a #GtkWrapMode
1781 * Sets the line wrapping for the view.
1784 gtk_text_view_set_wrap_mode (GtkTextView *text_view,
1785 GtkWrapMode wrap_mode)
1787 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1789 if (text_view->wrap_mode != wrap_mode)
1791 text_view->wrap_mode = wrap_mode;
1793 if (text_view->layout)
1795 text_view->layout->default_style->wrap_mode = wrap_mode;
1796 gtk_text_layout_default_style_changed (text_view->layout);
1800 g_object_notify (G_OBJECT (text_view), "wrap_mode");
1804 * gtk_text_view_get_wrap_mode:
1805 * @text_view: a #GtkTextView
1807 * Gets the line wrapping for the view.
1809 * Return value: the line wrap setting
1812 gtk_text_view_get_wrap_mode (GtkTextView *text_view)
1814 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAP_NONE);
1816 return text_view->wrap_mode;
1820 * gtk_text_view_set_editable:
1821 * @text_view: a #GtkTextView
1822 * @setting: whether it's editable
1824 * Sets the default editability of the #GtkTextView. You can override
1825 * this default setting with tags in the buffer, using the "editable"
1826 * attribute of tags.
1829 gtk_text_view_set_editable (GtkTextView *text_view,
1832 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1834 if (text_view->editable != setting)
1836 text_view->editable = setting;
1838 if (text_view->layout)
1840 text_view->layout->default_style->editable = text_view->editable;
1841 gtk_text_layout_default_style_changed (text_view->layout);
1845 g_object_notify (G_OBJECT (text_view), "editable");
1849 * gtk_text_view_get_editable:
1850 * @text_view: a #GtkTextView
1852 * Returns the default editability of the #GtkTextView. Tags in the
1853 * buffer may override this setting for some ranges of text.
1855 * Return value: whether text is editable by default
1858 gtk_text_view_get_editable (GtkTextView *text_view)
1860 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1862 return text_view->editable;
1866 gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
1867 gint pixels_above_lines)
1869 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1871 if (text_view->pixels_above_lines != pixels_above_lines)
1873 text_view->pixels_above_lines = pixels_above_lines;
1875 if (text_view->layout)
1877 text_view->layout->default_style->pixels_above_lines = pixels_above_lines;
1878 gtk_text_layout_default_style_changed (text_view->layout);
1882 g_object_notify (G_OBJECT (text_view), "pixels_above_lines");
1886 gtk_text_view_get_pixels_above_lines (GtkTextView *text_view)
1888 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
1890 return text_view->pixels_above_lines;
1894 gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
1895 gint pixels_below_lines)
1897 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1899 if (text_view->pixels_below_lines != pixels_below_lines)
1901 text_view->pixels_below_lines = pixels_below_lines;
1903 if (text_view->layout)
1905 text_view->layout->default_style->pixels_below_lines = pixels_below_lines;
1906 gtk_text_layout_default_style_changed (text_view->layout);
1910 g_object_notify (G_OBJECT (text_view), "pixels_below_lines");
1914 gtk_text_view_get_pixels_below_lines (GtkTextView *text_view)
1916 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
1918 return text_view->pixels_below_lines;
1922 gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
1923 gint pixels_inside_wrap)
1925 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1927 if (text_view->pixels_inside_wrap != pixels_inside_wrap)
1929 text_view->pixels_inside_wrap = pixels_inside_wrap;
1931 if (text_view->layout)
1933 text_view->layout->default_style->pixels_inside_wrap = pixels_inside_wrap;
1934 gtk_text_layout_default_style_changed (text_view->layout);
1937 g_object_notify (G_OBJECT (text_view), "pixels_inside_wrap");
1941 gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view)
1943 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
1945 return text_view->pixels_inside_wrap;
1949 gtk_text_view_set_justification (GtkTextView *text_view,
1950 GtkJustification justify)
1952 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1954 if (text_view->justify != justify)
1956 text_view->justify = justify;
1958 if (text_view->layout)
1960 text_view->layout->default_style->justification = justify;
1961 gtk_text_layout_default_style_changed (text_view->layout);
1965 g_object_notify (G_OBJECT (text_view), "justification");
1969 gtk_text_view_get_justification (GtkTextView *text_view)
1971 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_JUSTIFY_LEFT);
1973 return text_view->justify;
1977 gtk_text_view_set_left_margin (GtkTextView *text_view,
1980 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1982 if (text_view->left_margin != left_margin)
1984 text_view->left_margin = left_margin;
1986 if (text_view->layout)
1988 text_view->layout->default_style->left_margin = left_margin;
1989 gtk_text_layout_default_style_changed (text_view->layout);
1993 g_object_notify (G_OBJECT (text_view), "left_margin");
1997 gtk_text_view_get_left_margin (GtkTextView *text_view)
1999 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2001 return text_view->left_margin;
2005 gtk_text_view_set_right_margin (GtkTextView *text_view,
2008 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2010 if (text_view->right_margin != right_margin)
2012 text_view->right_margin = right_margin;
2014 if (text_view->layout)
2016 text_view->layout->default_style->right_margin = right_margin;
2017 gtk_text_layout_default_style_changed (text_view->layout);
2021 g_object_notify (G_OBJECT (text_view), "right_margin");
2025 gtk_text_view_get_right_margin (GtkTextView *text_view)
2027 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2029 return text_view->right_margin;
2033 gtk_text_view_set_indent (GtkTextView *text_view,
2036 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2038 if (text_view->indent != indent)
2040 text_view->indent = indent;
2042 if (text_view->layout)
2044 text_view->layout->default_style->indent = indent;
2045 gtk_text_layout_default_style_changed (text_view->layout);
2048 g_object_notify (G_OBJECT (text_view), "indent");
2052 gtk_text_view_get_indent (GtkTextView *text_view)
2054 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2056 return text_view->indent;
2060 gtk_text_view_set_tabs (GtkTextView *text_view,
2061 PangoTabArray *tabs)
2063 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2065 if (text_view->tabs)
2066 pango_tab_array_free (text_view->tabs);
2068 text_view->tabs = tabs ? pango_tab_array_copy (tabs) : NULL;
2070 if (text_view->layout)
2072 /* some unkosher futzing in internal struct details... */
2073 if (text_view->layout->default_style->tabs)
2074 pango_tab_array_free (text_view->layout->default_style->tabs);
2076 text_view->layout->default_style->tabs =
2077 text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
2079 gtk_text_layout_default_style_changed (text_view->layout);
2082 g_object_notify (G_OBJECT (text_view), "tabs");
2086 gtk_text_view_get_tabs (GtkTextView *text_view)
2088 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
2090 return text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
2094 * gtk_text_view_set_cursor_visible:
2095 * @text_view: a #GtkTextView
2096 * @setting: whether to show the insertion cursor
2098 * Toggles whether the insertion point is displayed. A buffer with no editable
2099 * text probably shouldn't have a visible cursor, so you may want to turn
2103 gtk_text_view_set_cursor_visible (GtkTextView *text_view,
2106 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2108 setting = (setting != FALSE);
2110 if (text_view->cursor_visible != setting)
2112 text_view->cursor_visible = setting;
2114 if (GTK_WIDGET_HAS_FOCUS (text_view))
2116 if (text_view->layout)
2118 gtk_text_layout_set_cursor_visible (text_view->layout, setting);
2119 gtk_text_view_check_cursor_blink (text_view);
2124 g_object_notify (G_OBJECT (text_view), "cursor_visible");
2128 * gtk_text_view_get_cursor_visible:
2129 * @text_view: a #GtkTextView
2131 * Find out whether the cursor is being displayed.
2133 * Return value: whether the insertion mark is visible
2136 gtk_text_view_get_cursor_visible (GtkTextView *text_view)
2138 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2140 return text_view->cursor_visible;
2145 * gtk_text_view_place_cursor_onscreen:
2146 * @text_view: a #GtkTextView
2148 * Moves the cursor to the currently visible region of the
2149 * buffer, it it isn't there already.
2151 * Return value: TRUE if the cursor had to be moved.
2154 gtk_text_view_place_cursor_onscreen (GtkTextView *text_view)
2158 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2160 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
2161 gtk_text_buffer_get_mark (get_buffer (text_view),
2164 if (clamp_iter_onscreen (text_view, &insert))
2166 gtk_text_buffer_place_cursor (get_buffer (text_view), &insert);
2174 gtk_text_view_remove_validate_idles (GtkTextView *text_view)
2176 if (text_view->first_validate_idle != 0)
2178 g_source_remove (text_view->first_validate_idle);
2179 text_view->first_validate_idle = 0;
2182 if (text_view->incremental_validate_idle != 0)
2184 g_source_remove (text_view->incremental_validate_idle);
2185 text_view->incremental_validate_idle = 0;
2190 gtk_text_view_destroy (GtkObject *object)
2192 GtkTextView *text_view;
2193 GtkTextLayout *layout;
2195 text_view = GTK_TEXT_VIEW (object);
2197 layout = text_view->layout;
2199 gtk_text_view_remove_validate_idles (text_view);
2200 gtk_text_view_set_buffer (text_view, NULL);
2201 gtk_text_view_destroy_layout (text_view);
2203 (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
2207 gtk_text_view_finalize (GObject *object)
2209 GtkTextView *text_view;
2211 text_view = GTK_TEXT_VIEW (object);
2213 g_return_if_fail (text_view->buffer == NULL);
2215 gtk_text_view_destroy_layout (text_view);
2216 gtk_text_view_set_buffer (text_view, NULL);
2218 if (text_view->pending_scroll)
2220 free_pending_scroll (text_view->pending_scroll);
2221 text_view->pending_scroll = NULL;
2224 if (text_view->hadjustment)
2225 g_object_unref (G_OBJECT (text_view->hadjustment));
2226 if (text_view->vadjustment)
2227 g_object_unref (G_OBJECT (text_view->vadjustment));
2229 text_window_free (text_view->text_window);
2231 if (text_view->left_window)
2232 text_window_free (text_view->left_window);
2234 if (text_view->top_window)
2235 text_window_free (text_view->top_window);
2237 if (text_view->right_window)
2238 text_window_free (text_view->right_window);
2240 if (text_view->bottom_window)
2241 text_window_free (text_view->bottom_window);
2243 g_object_unref (G_OBJECT (text_view->im_context));
2245 (* G_OBJECT_CLASS (parent_class)->finalize) (object);
2249 gtk_text_view_set_property (GObject *object,
2251 const GValue *value,
2254 GtkTextView *text_view;
2256 text_view = GTK_TEXT_VIEW (object);
2260 case PROP_PIXELS_ABOVE_LINES:
2261 gtk_text_view_set_pixels_above_lines (text_view, g_value_get_int (value));
2264 case PROP_PIXELS_BELOW_LINES:
2265 gtk_text_view_set_pixels_below_lines (text_view, g_value_get_int (value));
2268 case PROP_PIXELS_INSIDE_WRAP:
2269 gtk_text_view_set_pixels_inside_wrap (text_view, g_value_get_int (value));
2273 gtk_text_view_set_editable (text_view, g_value_get_boolean (value));
2276 case PROP_WRAP_MODE:
2277 gtk_text_view_set_wrap_mode (text_view, g_value_get_enum (value));
2280 case PROP_JUSTIFICATION:
2281 gtk_text_view_set_justification (text_view, g_value_get_enum (value));
2284 case PROP_LEFT_MARGIN:
2285 gtk_text_view_set_left_margin (text_view, g_value_get_int (value));
2288 case PROP_RIGHT_MARGIN:
2289 gtk_text_view_set_right_margin (text_view, g_value_get_int (value));
2293 gtk_text_view_set_indent (text_view, g_value_get_int (value));
2297 gtk_text_view_set_tabs (text_view, g_value_get_object (value));
2300 case PROP_CURSOR_VISIBLE:
2301 gtk_text_view_set_cursor_visible (text_view, g_value_get_boolean (value));
2305 g_assert_not_reached ();
2311 gtk_text_view_get_property (GObject *object,
2316 GtkTextView *text_view;
2318 text_view = GTK_TEXT_VIEW (object);
2322 case PROP_PIXELS_ABOVE_LINES:
2323 g_value_set_int (value, text_view->pixels_above_lines);
2326 case PROP_PIXELS_BELOW_LINES:
2327 g_value_set_int (value, text_view->pixels_below_lines);
2330 case PROP_PIXELS_INSIDE_WRAP:
2331 g_value_set_int (value, text_view->pixels_inside_wrap);
2335 g_value_set_boolean (value, text_view->editable);
2338 case PROP_WRAP_MODE:
2339 g_value_set_enum (value, text_view->wrap_mode);
2342 case PROP_JUSTIFICATION:
2343 g_value_set_enum (value, text_view->justify);
2346 case PROP_LEFT_MARGIN:
2347 g_value_set_int (value, text_view->left_margin);
2350 case PROP_RIGHT_MARGIN:
2351 g_value_set_int (value, text_view->right_margin);
2355 g_value_set_int (value, text_view->indent);
2359 g_value_set_object (value, gtk_text_view_get_tabs (text_view));
2362 case PROP_CURSOR_VISIBLE:
2363 g_value_set_boolean (value, text_view->cursor_visible);
2367 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2373 gtk_text_view_size_request (GtkWidget *widget,
2374 GtkRequisition *requisition)
2376 GtkTextView *text_view;
2378 gint focus_edge_width;
2379 gboolean interior_focus;
2381 text_view = GTK_TEXT_VIEW (widget);
2383 gtk_widget_style_get (widget, "interior_focus", &interior_focus, NULL);
2386 focus_edge_width = 0;
2388 focus_edge_width = 1;
2390 if (text_view->layout)
2392 text_view->text_window->requisition.width = text_view->layout->width;
2393 text_view->text_window->requisition.height = text_view->layout->height;
2397 text_view->text_window->requisition.width = 0;
2398 text_view->text_window->requisition.height = 0;
2401 requisition->width = text_view->text_window->requisition.width + focus_edge_width * 2;
2402 requisition->height = text_view->text_window->requisition.height + focus_edge_width * 2;
2404 if (text_view->left_window)
2405 requisition->width += text_view->left_window->requisition.width;
2407 if (text_view->right_window)
2408 requisition->width += text_view->right_window->requisition.width;
2410 if (text_view->top_window)
2411 requisition->height += text_view->top_window->requisition.height;
2413 if (text_view->bottom_window)
2414 requisition->height += text_view->bottom_window->requisition.height;
2416 requisition->width += GTK_CONTAINER (text_view)->border_width * 2;
2417 requisition->height += GTK_CONTAINER (text_view)->border_width * 2;
2419 tmp_list = text_view->children;
2420 while (tmp_list != NULL)
2422 GtkTextViewChild *child = tmp_list->data;
2426 GtkRequisition child_req;
2427 GtkRequisition old_req;
2429 gtk_widget_get_child_requisition (child->widget, &old_req);
2431 gtk_widget_size_request (child->widget, &child_req);
2433 gtk_widget_get_child_requisition (child->widget, &child_req);
2435 /* Invalidate layout lines if required */
2436 if (text_view->layout &&
2437 (old_req.width != child_req.width ||
2438 old_req.height != child_req.height))
2439 gtk_text_child_anchor_queue_resize (child->anchor,
2444 GtkRequisition child_req;
2446 gtk_widget_size_request (child->widget, &child_req);
2449 tmp_list = g_slist_next (tmp_list);
2454 gtk_text_view_compute_child_allocation (GtkTextView *text_view,
2455 GtkTextViewChild *vc,
2456 GtkAllocation *allocation)
2462 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
2466 gtk_text_layout_get_line_yrange (text_view->layout, &iter,
2469 buffer_y += vc->from_top_of_line;
2471 allocation->x = vc->from_left_of_buffer - text_view->xoffset;
2472 allocation->y = buffer_y - text_view->yoffset;
2474 gtk_widget_get_child_requisition (vc->widget, &req);
2475 allocation->width = req.width;
2476 allocation->height = req.height;
2480 gtk_text_view_update_child_allocation (GtkTextView *text_view,
2481 GtkTextViewChild *vc)
2483 GtkAllocation allocation;
2485 gtk_text_view_compute_child_allocation (text_view, vc, &allocation);
2487 gtk_widget_size_allocate (vc->widget, &allocation);
2490 g_print ("allocation for %p allocated to %d,%d yoffset = %d\n",
2492 vc->widget->allocation.x,
2493 vc->widget->allocation.y,
2494 text_view->yoffset);
2499 gtk_text_view_child_allocated (GtkTextLayout *layout,
2505 GtkTextViewChild *vc = NULL;
2506 GtkTextView *text_view = data;
2508 /* x,y is the position of the child from the top of the line, and
2509 * from the left of the buffer. We have to translate that into text
2510 * window coordinates, then size_allocate the child.
2513 vc = g_object_get_data (G_OBJECT (child),
2514 "gtk-text-view-child");
2516 g_assert (vc != NULL);
2518 DV (g_print ("child allocated at %d,%d\n", x, y));
2520 vc->from_left_of_buffer = x;
2521 vc->from_top_of_line = y;
2523 gtk_text_view_update_child_allocation (text_view, vc);
2527 gtk_text_view_allocate_children (GtkTextView *text_view)
2531 DV(g_print(G_STRLOC"\n"));
2533 tmp_list = text_view->children;
2534 while (tmp_list != NULL)
2536 GtkTextViewChild *child = tmp_list->data;
2540 /* We need to force-validate the regions containing
2543 GtkTextIter child_loc;
2544 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
2548 gtk_text_layout_validate_yrange (text_view->layout,
2554 GtkAllocation allocation;
2555 GtkRequisition child_req;
2557 g_assert (child != NULL);
2559 allocation.x = child->x;
2560 allocation.y = child->y;
2562 gtk_widget_get_child_requisition (child->widget, &child_req);
2564 allocation.width = child_req.width;
2565 allocation.height = child_req.height;
2567 gtk_widget_size_allocate (child->widget, &allocation);
2570 tmp_list = g_slist_next (tmp_list);
2575 gtk_text_view_size_allocate (GtkWidget *widget,
2576 GtkAllocation *allocation)
2578 GtkTextView *text_view;
2579 GtkTextIter first_para;
2581 GtkAdjustment *vadj;
2582 gboolean yoffset_changed = FALSE;
2584 GdkRectangle text_rect;
2585 GdkRectangle left_rect;
2586 GdkRectangle right_rect;
2587 GdkRectangle top_rect;
2588 GdkRectangle bottom_rect;
2589 gint focus_edge_width;
2590 gboolean interior_focus;
2591 gboolean size_changed;
2593 text_view = GTK_TEXT_VIEW (widget);
2595 DV(g_print(G_STRLOC"\n"));
2598 widget->allocation.width != allocation->width ||
2599 widget->allocation.height != allocation->height;
2601 widget->allocation = *allocation;
2603 if (GTK_WIDGET_REALIZED (widget))
2605 gdk_window_move_resize (widget->window,
2606 allocation->x, allocation->y,
2607 allocation->width, allocation->height);
2610 /* distribute width/height among child windows. Ensure all
2611 * windows get at least a 1x1 allocation.
2614 gtk_widget_style_get (widget, "interior_focus", &interior_focus, NULL);
2617 focus_edge_width = 0;
2619 focus_edge_width = 1;
2621 width = allocation->width - focus_edge_width * 2 - GTK_CONTAINER (text_view)->border_width * 2;
2623 if (text_view->left_window)
2624 left_rect.width = text_view->left_window->requisition.width;
2626 left_rect.width = 0;
2628 width -= left_rect.width;
2630 if (text_view->right_window)
2631 right_rect.width = text_view->right_window->requisition.width;
2633 right_rect.width = 0;
2635 width -= right_rect.width;
2637 text_rect.width = MAX (1, width);
2639 top_rect.width = text_rect.width;
2640 bottom_rect.width = text_rect.width;
2643 height = allocation->height - focus_edge_width * 2 - GTK_CONTAINER (text_view)->border_width * 2;
2645 if (text_view->top_window)
2646 top_rect.height = text_view->top_window->requisition.height;
2648 top_rect.height = 0;
2650 height -= top_rect.height;
2652 if (text_view->bottom_window)
2653 bottom_rect.height = text_view->bottom_window->requisition.height;
2655 bottom_rect.height = 0;
2657 height -= bottom_rect.height;
2659 text_rect.height = MAX (1, height);
2661 left_rect.height = text_rect.height;
2662 right_rect.height = text_rect.height;
2665 left_rect.x = focus_edge_width + GTK_CONTAINER (text_view)->border_width;
2666 top_rect.y = focus_edge_width + GTK_CONTAINER (text_view)->border_width;
2668 text_rect.x = left_rect.x + left_rect.width;
2669 text_rect.y = top_rect.y + top_rect.height;
2671 left_rect.y = text_rect.y;
2672 right_rect.y = text_rect.y;
2674 top_rect.x = text_rect.x;
2675 bottom_rect.x = text_rect.x;
2677 right_rect.x = text_rect.x + text_rect.width;
2678 bottom_rect.y = text_rect.y + text_rect.height;
2680 text_window_size_allocate (text_view->text_window,
2683 if (text_view->left_window)
2684 text_window_size_allocate (text_view->left_window,
2687 if (text_view->right_window)
2688 text_window_size_allocate (text_view->right_window,
2691 if (text_view->top_window)
2692 text_window_size_allocate (text_view->top_window,
2695 if (text_view->bottom_window)
2696 text_window_size_allocate (text_view->bottom_window,
2699 gtk_text_view_update_layout_width (text_view);
2701 /* Note that this will do some layout validation */
2702 gtk_text_view_allocate_children (text_view);
2704 /* Now adjust the value of the adjustment to keep the cursor at the
2705 * same place in the buffer
2707 gtk_text_view_get_first_para_iter (text_view, &first_para);
2708 gtk_text_layout_get_line_yrange (text_view->layout, &first_para, &y, NULL);
2710 y += text_view->first_para_pixels;
2712 /* Ensure h/v adj exist */
2713 get_hadjustment (text_view);
2714 get_vadjustment (text_view);
2716 vadj = text_view->vadjustment;
2717 if (y > vadj->upper - vadj->page_size)
2718 y = MAX (0, vadj->upper - vadj->page_size);
2720 if (y != text_view->yoffset)
2722 vadj->value = text_view->yoffset = y;
2723 yoffset_changed = TRUE;
2726 text_view->hadjustment->page_size = SCREEN_WIDTH (text_view);
2727 text_view->hadjustment->page_increment = SCREEN_WIDTH (text_view) / 2;
2728 text_view->hadjustment->lower = 0;
2729 text_view->hadjustment->upper = MAX (SCREEN_WIDTH (text_view),
2731 gtk_signal_emit_by_name (GTK_OBJECT (text_view->hadjustment), "changed");
2733 text_view->vadjustment->page_size = SCREEN_HEIGHT (text_view);
2734 text_view->vadjustment->page_increment = SCREEN_HEIGHT (text_view) / 2;
2735 text_view->vadjustment->lower = 0;
2736 text_view->vadjustment->upper = MAX (SCREEN_HEIGHT (text_view),
2738 gtk_signal_emit_by_name (GTK_OBJECT (text_view->vadjustment), "changed");
2740 if (yoffset_changed)
2741 gtk_adjustment_value_changed (vadj);
2743 if (text_view->first_validate_idle != 0)
2745 /* The GTK resize loop processes all the pending exposes right
2746 * after doing the resize stuff, so the idle sizer won't have a
2747 * chance to run. So we do the work here.
2750 g_source_remove (text_view->first_validate_idle);
2751 text_view->first_validate_idle = 0;
2753 if (!gtk_text_view_flush_scroll (text_view))
2754 gtk_text_view_validate_onscreen (text_view);
2757 /* widget->window doesn't get auto-redrawn as the layout is computed, so has to
2760 if (size_changed && GTK_WIDGET_REALIZED (widget))
2761 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
2765 gtk_text_view_get_first_para_iter (GtkTextView *text_view,
2768 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter,
2769 text_view->first_para_mark);
2773 gtk_text_view_validate_onscreen (GtkTextView *text_view)
2775 GtkWidget *widget = GTK_WIDGET (text_view);
2777 DV(g_print(">Validating onscreen ("G_STRLOC")\n"));
2779 if (SCREEN_HEIGHT (widget) > 0)
2781 GtkTextIter first_para;
2783 /* Be sure we've validated the stuff onscreen; if we
2784 * scrolled, these calls won't have any effect, because
2785 * they were called in the recursive validate_onscreen
2787 gtk_text_view_get_first_para_iter (text_view, &first_para);
2789 gtk_text_layout_validate_yrange (text_view->layout,
2792 text_view->first_para_pixels +
2793 SCREEN_HEIGHT (widget));
2796 text_view->onscreen_validated = TRUE;
2798 DV(g_print(">Done validating onscreen, onscreen_validated = TRUE ("G_STRLOC")\n"));
2800 /* This can have the odd side effect of triggering a scroll, which should
2801 * flip "onscreen_validated" back to FALSE, but should also get us
2802 * back into this function to turn it on again.
2804 gtk_text_view_update_adjustments (text_view);
2806 g_assert (text_view->onscreen_validated);
2810 first_validate_callback (gpointer data)
2812 GtkTextView *text_view = data;
2814 GDK_THREADS_ENTER ();
2816 /* Note that some of this code is duplicated at the end of size_allocate,
2817 * keep in sync with that.
2820 DV(g_print(G_STRLOC"\n"));
2822 /* Do this first, which means that if an "invalidate"
2823 * occurs during any of this process, a new first_validate_callback
2824 * will be installed, and we'll start again.
2826 text_view->first_validate_idle = 0;
2828 /* be sure we have up-to-date screen size set on the
2831 gtk_text_view_update_layout_width (text_view);
2833 /* Bail out if we invalidated stuff; scrolling right away will just
2834 * confuse the issue.
2836 if (text_view->first_validate_idle != 0)
2838 DV(g_print(">Width change forced requeue ("G_STRLOC")\n"));
2842 /* scroll to any marks, if that's pending. This can
2843 * jump us to the validation codepath used for scrolling
2844 * onscreen, if so we bail out.
2846 if (!gtk_text_view_flush_scroll (text_view))
2847 gtk_text_view_validate_onscreen (text_view);
2849 DV(g_print(">Leaving first validate idle ("G_STRLOC")\n"));
2851 g_assert (text_view->onscreen_validated);
2855 GDK_THREADS_LEAVE ();
2861 incremental_validate_callback (gpointer data)
2863 GtkTextView *text_view = data;
2864 gboolean result = TRUE;
2866 GDK_THREADS_ENTER ();
2868 DV(g_print(G_STRLOC"\n"));
2870 gtk_text_layout_validate (text_view->layout, 2000);
2872 gtk_text_view_update_adjustments (text_view);
2874 if (gtk_text_layout_is_valid (text_view->layout))
2876 text_view->incremental_validate_idle = 0;
2880 GDK_THREADS_LEAVE ();
2886 gtk_text_view_invalidate (GtkTextView *text_view)
2888 text_view->onscreen_validated = FALSE;
2890 DV(g_print(">Invalidate, onscreen_validated = FALSE ("G_STRLOC")\n"));
2892 if (!text_view->first_validate_idle)
2894 text_view->first_validate_idle = g_idle_add_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
2895 DV (g_print (G_STRLOC": adding first validate idle %d\n",
2896 text_view->first_validate_idle));
2899 if (!text_view->incremental_validate_idle)
2901 text_view->incremental_validate_idle = g_idle_add_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
2902 DV (g_print (G_STRLOC": adding incremental validate idle %d\n",
2903 text_view->incremental_validate_idle));
2908 invalidated_handler (GtkTextLayout *layout,
2911 GtkTextView *text_view;
2913 text_view = GTK_TEXT_VIEW (data);
2915 gtk_text_view_invalidate (text_view);
2919 changed_handler (GtkTextLayout *layout,
2925 GtkTextView *text_view;
2927 GdkRectangle visible_rect;
2928 GdkRectangle redraw_rect;
2930 text_view = GTK_TEXT_VIEW (data);
2931 widget = GTK_WIDGET (data);
2933 DV(g_print(">Lines Validated ("G_STRLOC")\n"));
2935 if (GTK_WIDGET_REALIZED (text_view))
2937 gtk_text_view_get_visible_rect (text_view, &visible_rect);
2939 redraw_rect.x = visible_rect.x;
2940 redraw_rect.width = visible_rect.width;
2941 redraw_rect.y = start_y;
2943 if (old_height == new_height)
2944 redraw_rect.height = old_height;
2946 redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y);
2948 if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect))
2950 /* text_window_invalidate_rect() takes buffer coordinates */
2951 text_window_invalidate_rect (text_view->text_window,
2954 DV(g_print(" invalidated rect: %d,%d %d x %d\n",
2958 redraw_rect.height));
2960 if (text_view->left_window)
2961 text_window_invalidate_rect (text_view->left_window,
2963 if (text_view->right_window)
2964 text_window_invalidate_rect (text_view->right_window,
2966 if (text_view->top_window)
2967 text_window_invalidate_rect (text_view->top_window,
2969 if (text_view->bottom_window)
2970 text_window_invalidate_rect (text_view->bottom_window,
2973 gtk_text_view_update_im_spot_location (text_view);
2977 if (old_height != new_height)
2979 gboolean yoffset_changed = FALSE;
2981 int new_first_para_top;
2982 int old_first_para_top;
2985 /* If the bottom of the old area was above the top of the
2986 * screen, we need to scroll to keep the current top of the
2987 * screen in place. Remember that first_para_pixels is the
2988 * position of the top of the screen in coordinates relative to
2989 * the first paragraph onscreen.
2991 * In short we are adding the height delta of the portion of the
2992 * changed region above first_para_mark to text_view->yoffset.
2994 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first,
2995 text_view->first_para_mark);
2997 gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL);
2999 old_first_para_top = text_view->yoffset - text_view->first_para_pixels;
3001 if (new_first_para_top != old_first_para_top)
3003 text_view->yoffset += new_first_para_top - old_first_para_top;
3005 get_vadjustment (text_view)->value = text_view->yoffset;
3006 yoffset_changed = TRUE;
3009 if (yoffset_changed)
3010 gtk_adjustment_value_changed (get_vadjustment (text_view));
3012 /* FIXME be smarter about which anchored widgets we update */
3014 tmp_list = text_view->children;
3015 while (tmp_list != NULL)
3017 GtkTextViewChild *child = tmp_list->data;
3020 gtk_text_view_update_child_allocation (text_view, child);
3022 tmp_list = g_slist_next (tmp_list);
3027 GtkRequisition old_req;
3028 GtkRequisition new_req;
3030 old_req = widget->requisition;
3031 gtk_widget_size_request (widget, &new_req);
3033 if (old_req.width != new_req.width ||
3034 old_req.height != new_req.height)
3035 gtk_widget_queue_resize (widget);
3040 gtk_text_view_realize_cursor_gc (GtkTextView *text_view)
3042 GdkColor *cursor_color;
3043 GdkColor red = { 0, 0xffff, 0x0000, 0x0000 };
3045 if (text_view->cursor_gc)
3046 gdk_gc_unref (text_view->cursor_gc);
3048 gtk_widget_style_get (GTK_WIDGET (text_view), "cursor_color", &cursor_color, NULL);
3051 cursor_color = &red;
3053 text_view->cursor_gc = gdk_gc_new (text_view->text_window->bin_window);
3054 gdk_gc_set_rgb_fg_color (text_view->cursor_gc, cursor_color);
3058 gtk_text_view_realize (GtkWidget *widget)
3060 GtkTextView *text_view;
3061 GdkWindowAttr attributes;
3062 gint attributes_mask;
3065 text_view = GTK_TEXT_VIEW (widget);
3066 GTK_WIDGET_SET_FLAGS (text_view, GTK_REALIZED);
3068 attributes.window_type = GDK_WINDOW_CHILD;
3069 attributes.x = widget->allocation.x;
3070 attributes.y = widget->allocation.y;
3071 attributes.width = widget->allocation.width;
3072 attributes.height = widget->allocation.height;
3073 attributes.wclass = GDK_INPUT_OUTPUT;
3074 attributes.visual = gtk_widget_get_visual (widget);
3075 attributes.colormap = gtk_widget_get_colormap (widget);
3076 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK;
3078 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3080 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
3081 &attributes, attributes_mask);
3082 gdk_window_set_user_data (widget->window, widget);
3084 /* must come before text_window_realize calls */
3085 widget->style = gtk_style_attach (widget->style, widget->window);
3087 gdk_window_set_background (widget->window,
3088 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3090 text_window_realize (text_view->text_window, widget->window);
3092 if (text_view->left_window)
3093 text_window_realize (text_view->left_window,
3096 if (text_view->top_window)
3097 text_window_realize (text_view->top_window,
3100 if (text_view->right_window)
3101 text_window_realize (text_view->right_window,
3104 if (text_view->bottom_window)
3105 text_window_realize (text_view->bottom_window,
3108 gtk_text_view_realize_cursor_gc (text_view);
3110 gtk_text_view_ensure_layout (text_view);
3112 if (text_view->buffer)
3113 gtk_text_buffer_add_selection_clipboard (text_view->buffer,
3114 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
3116 tmp_list = text_view->children;
3117 while (tmp_list != NULL)
3119 GtkTextViewChild *vc = tmp_list->data;
3121 text_view_child_set_parent_window (text_view, vc);
3123 tmp_list = tmp_list->next;
3128 gtk_text_view_unrealize (GtkWidget *widget)
3130 GtkTextView *text_view;
3132 text_view = GTK_TEXT_VIEW (widget);
3134 if (text_view->buffer)
3135 gtk_text_buffer_remove_selection_clipboard (text_view->buffer,
3136 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
3138 if (text_view->cursor_gc)
3140 gdk_gc_unref (text_view->cursor_gc);
3141 text_view->cursor_gc = NULL;
3144 gtk_text_view_remove_validate_idles (text_view);
3146 if (text_view->popup_menu)
3148 gtk_widget_destroy (text_view->popup_menu);
3149 text_view->popup_menu = NULL;
3152 text_window_unrealize (text_view->text_window);
3154 if (text_view->left_window)
3155 text_window_unrealize (text_view->left_window);
3157 if (text_view->top_window)
3158 text_window_unrealize (text_view->top_window);
3160 if (text_view->right_window)
3161 text_window_unrealize (text_view->right_window);
3163 if (text_view->bottom_window)
3164 text_window_unrealize (text_view->bottom_window);
3166 gtk_text_view_destroy_layout (text_view);
3168 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
3172 gtk_text_view_style_set (GtkWidget *widget,
3173 GtkStyle *previous_style)
3175 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3177 if (GTK_WIDGET_REALIZED (widget))
3179 gdk_window_set_background (widget->window,
3180 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3182 gdk_window_set_background (text_view->text_window->bin_window,
3183 &widget->style->base[GTK_WIDGET_STATE (widget)]);
3185 if (text_view->left_window)
3186 gdk_window_set_background (text_view->left_window->bin_window,
3187 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3188 if (text_view->right_window)
3189 gdk_window_set_background (text_view->right_window->bin_window,
3190 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3192 if (text_view->top_window)
3193 gdk_window_set_background (text_view->top_window->bin_window,
3194 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3196 if (text_view->bottom_window)
3197 gdk_window_set_background (text_view->bottom_window->bin_window,
3198 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3200 gtk_text_view_realize_cursor_gc (text_view);
3203 if (text_view->layout && previous_style)
3205 gtk_text_view_set_attributes_from_style (text_view,
3206 text_view->layout->default_style,
3208 gtk_text_layout_default_style_changed (text_view->layout);
3213 gtk_text_view_direction_changed (GtkWidget *widget,
3214 GtkTextDirection previous_direction)
3216 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3218 if (text_view->layout)
3220 text_view->layout->default_style->direction = gtk_widget_get_direction (widget);
3221 gtk_text_layout_default_style_changed (text_view->layout);
3230 get_event_coordinates (GdkEvent *event, gint *x, gint *y)
3233 switch (event->type)
3235 case GDK_MOTION_NOTIFY:
3236 *x = event->motion.x;
3237 *y = event->motion.y;
3241 case GDK_BUTTON_PRESS:
3242 case GDK_2BUTTON_PRESS:
3243 case GDK_3BUTTON_PRESS:
3244 case GDK_BUTTON_RELEASE:
3245 *x = event->button.x;
3246 *y = event->button.y;
3251 case GDK_KEY_RELEASE:
3252 case GDK_ENTER_NOTIFY:
3253 case GDK_LEAVE_NOTIFY:
3254 case GDK_PROPERTY_NOTIFY:
3255 case GDK_SELECTION_CLEAR:
3256 case GDK_SELECTION_REQUEST:
3257 case GDK_SELECTION_NOTIFY:
3258 case GDK_PROXIMITY_IN:
3259 case GDK_PROXIMITY_OUT:
3260 case GDK_DRAG_ENTER:
3261 case GDK_DRAG_LEAVE:
3262 case GDK_DRAG_MOTION:
3263 case GDK_DRAG_STATUS:
3264 case GDK_DROP_START:
3265 case GDK_DROP_FINISHED:
3275 emit_event_on_tags (GtkWidget *widget,
3281 gboolean retval = FALSE;
3282 GtkTextView *text_view;
3284 text_view = GTK_TEXT_VIEW (widget);
3286 tags = gtk_text_iter_get_tags (iter);
3291 GtkTextTag *tag = tmp->data;
3293 if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter))
3299 tmp = g_slist_next (tmp);
3302 g_slist_free (tags);
3308 gtk_text_view_event (GtkWidget *widget, GdkEvent *event)
3310 GtkTextView *text_view;
3313 text_view = GTK_TEXT_VIEW (widget);
3315 if (text_view->layout == NULL ||
3316 get_buffer (text_view) == NULL)
3319 if (event->any.window != text_view->text_window->bin_window)
3322 if (get_event_coordinates (event, &x, &y))
3326 x += text_view->xoffset;
3327 y += text_view->yoffset;
3329 /* FIXME this is slow and we do it twice per event.
3330 * My favorite solution is to have GtkTextLayout cache
3331 * the last couple lookups.
3333 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3337 return emit_event_on_tags (widget, event, &iter);
3339 else if (event->type == GDK_KEY_PRESS ||
3340 event->type == GDK_KEY_RELEASE)
3342 GtkTextMark *insert;
3345 insert = gtk_text_buffer_get_mark (get_buffer (text_view),
3348 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3350 return emit_event_on_tags (widget, event, &iter);
3357 gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
3359 gboolean retval = FALSE;
3360 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3361 GtkTextMark *insert;
3364 if (text_view->layout == NULL ||
3365 get_buffer (text_view) == NULL)
3368 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
3369 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3370 if (gtk_text_iter_can_insert (&iter, text_view->editable) &&
3371 gtk_im_context_filter_keypress (text_view->im_context, event))
3373 text_view->need_im_reset = TRUE;
3376 else if (GTK_WIDGET_CLASS (parent_class)->key_press_event &&
3377 GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
3379 else if (event->keyval == GDK_Return ||
3380 event->keyval == GDK_KP_Enter)
3382 gtk_text_view_commit_text (text_view, "\n");
3385 /* Pass through Tab as literal tab, unless Control is held down */
3386 else if ((event->keyval == GDK_Tab ||
3387 event->keyval == GDK_KP_Tab ||
3388 event->keyval == GDK_ISO_Left_Tab) &&
3389 !(event->state & GDK_CONTROL_MASK))
3391 gtk_text_view_commit_text (text_view, "\t");
3397 gtk_text_view_pend_cursor_blink (text_view);
3403 gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
3409 gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
3411 GtkTextView *text_view;
3413 text_view = GTK_TEXT_VIEW (widget);
3415 text_view->disable_scroll_on_focus = TRUE;
3416 gtk_widget_grab_focus (widget);
3417 text_view->disable_scroll_on_focus = FALSE;
3419 if (event->window != text_view->text_window->bin_window)
3421 /* Remove selection if any. */
3422 gtk_text_view_unselect (text_view);
3428 if (event->button == 3 && (event->state & GDK_CONTROL_MASK) != 0)
3429 _gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer);
3430 else if (event->button == 3)
3431 gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout);
3434 if (event->type == GDK_BUTTON_PRESS)
3436 gtk_text_view_reset_im_context (text_view);
3438 if (event->button == 1)
3440 /* If we're in the selection, start a drag copy/move of the
3441 * selection; otherwise, start creating a new selection.
3444 GtkTextIter start, end;
3446 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3448 event->x + text_view->xoffset,
3449 event->y + text_view->yoffset);
3451 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
3453 gtk_text_iter_in_range (&iter, &start, &end))
3455 text_view->drag_start_x = event->x;
3456 text_view->drag_start_y = event->y;
3457 text_view->pending_place_cursor_button = event->button;
3461 gtk_text_view_start_selection_drag (text_view, &iter, event);
3466 else if (event->button == 2)
3470 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3472 event->x + text_view->xoffset,
3473 event->y + text_view->yoffset);
3475 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
3476 gtk_clipboard_get (GDK_SELECTION_PRIMARY),
3478 text_view->editable);
3481 else if (event->button == 3)
3483 gtk_text_view_do_popup (text_view, event);
3486 else if ((event->type == GDK_2BUTTON_PRESS ||
3487 event->type == GDK_3BUTTON_PRESS) &&
3490 GtkTextIter start, end;
3492 /* End the selection drag, otherwise we'd clear the new
3493 * word/line selection on button release
3495 gtk_text_view_end_selection_drag (text_view, event);
3497 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3499 event->x + text_view->xoffset,
3500 event->y + text_view->yoffset);
3504 if (event->type == GDK_2BUTTON_PRESS)
3506 if (gtk_text_iter_inside_word (&start))
3508 if (!gtk_text_iter_starts_word (&start))
3509 gtk_text_iter_backward_word_start (&start);
3511 if (!gtk_text_iter_ends_word (&end))
3512 gtk_text_iter_forward_word_end (&end);
3515 else if (event->type == GDK_3BUTTON_PRESS)
3517 if (gtk_text_view_starts_display_line (text_view, &start))
3519 /* If on a display line boundary, we assume the user
3520 * clicked off the end of a line and we therefore select
3521 * the line before the boundary.
3523 gtk_text_view_backward_display_line_start (text_view, &start);
3527 /* start isn't on the start of a line, so we move it to the
3528 * start, and move end to the end unless it's already there.
3530 gtk_text_view_backward_display_line_start (text_view, &start);
3532 if (!gtk_text_view_starts_display_line (text_view, &end))
3533 gtk_text_view_forward_display_line_end (text_view, &end);
3537 gtk_text_buffer_move_mark (get_buffer (text_view),
3538 gtk_text_buffer_get_selection_bound (get_buffer (text_view)),
3540 gtk_text_buffer_move_mark (get_buffer (text_view),
3541 gtk_text_buffer_get_insert (get_buffer (text_view)),
3544 text_view->just_selected_element = TRUE;
3553 gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
3555 GtkTextView *text_view;
3557 text_view = GTK_TEXT_VIEW (widget);
3559 if (event->window != text_view->text_window->bin_window)
3562 if (event->button == 1)
3564 if (text_view->drag_start_x >= 0)
3566 text_view->drag_start_x = -1;
3567 text_view->drag_start_y = -1;
3570 if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget), event))
3572 else if (text_view->just_selected_element)
3574 text_view->just_selected_element = FALSE;
3577 else if (text_view->pending_place_cursor_button == event->button)
3581 /* Unselect everything; we clicked inside selection, but
3582 * didn't move by the drag threshold, so just clear selection
3585 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3587 event->x + text_view->xoffset,
3588 event->y + text_view->yoffset);
3590 gtk_text_buffer_place_cursor (get_buffer (text_view), &iter);
3592 text_view->pending_place_cursor_button = 0;
3602 keymap_direction_changed (GdkKeymap *keymap,
3603 GtkTextView *text_view)
3605 gtk_text_view_check_keymap_direction (text_view);
3609 gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
3611 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3613 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
3614 gtk_widget_queue_draw (widget);
3616 DV(g_print (G_STRLOC": focus_in_event\n"));
3618 if (text_view->cursor_visible && text_view->layout)
3620 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
3621 gtk_text_view_check_cursor_blink (text_view);
3624 g_signal_connect (gdk_keymap_get_default (),
3625 "direction_changed",
3626 G_CALLBACK (keymap_direction_changed), text_view);
3627 gtk_text_view_check_keymap_direction (text_view);
3629 text_view->need_im_reset = TRUE;
3630 gtk_im_context_focus_in (GTK_TEXT_VIEW (widget)->im_context);
3636 gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event)
3638 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3640 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
3641 gtk_widget_queue_draw (widget);
3643 DV(g_print (G_STRLOC": focus_out_event\n"));
3645 if (text_view->cursor_visible && text_view->layout)
3647 gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
3648 gtk_text_view_check_cursor_blink (text_view);
3651 g_signal_handlers_disconnect_by_func (gdk_keymap_get_default (),
3652 keymap_direction_changed,
3655 text_view->need_im_reset = TRUE;
3656 gtk_im_context_focus_out (GTK_TEXT_VIEW (widget)->im_context);
3662 gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event)
3664 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3666 if (event->window == text_view->text_window->bin_window &&
3667 text_view->drag_start_x >= 0)
3671 gdk_window_get_pointer (text_view->text_window->bin_window,
3674 if (gtk_drag_check_threshold (widget,
3675 text_view->drag_start_x,
3676 text_view->drag_start_y,
3680 gint buffer_x, buffer_y;
3682 gtk_text_view_window_to_buffer_coords (text_view,
3683 GTK_TEXT_WINDOW_TEXT,
3684 text_view->drag_start_x,
3685 text_view->drag_start_y,
3689 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3691 buffer_x, buffer_y);
3693 gtk_text_view_start_selection_dnd (text_view, &iter, event);
3702 gtk_text_view_paint (GtkWidget *widget,
3704 GdkEventExpose *event)
3706 GtkTextView *text_view;
3707 GList *child_exposes;
3710 text_view = GTK_TEXT_VIEW (widget);
3712 g_return_if_fail (text_view->layout != NULL);
3713 g_return_if_fail (text_view->xoffset >= 0);
3714 g_return_if_fail (text_view->yoffset >= 0);
3716 DV (g_print (G_STRLOC": first_validate_idle: %d\n",
3717 text_view->first_validate_idle));
3719 if (!text_view->onscreen_validated)
3722 g_warning (G_STRLOC ": somehow some text lines were modified or scrolling occurred since the last validation of lines on the screen");
3726 printf ("painting %d,%d %d x %d\n",
3728 area->width, area->height);
3731 child_exposes = NULL;
3732 gtk_text_layout_draw (text_view->layout,
3734 text_view->text_window->bin_window,
3735 text_view->cursor_gc,
3739 area->width, area->height,
3742 tmp_list = child_exposes;
3743 while (tmp_list != NULL)
3745 GtkWidget *child = tmp_list->data;
3747 gtk_container_propagate_expose (GTK_CONTAINER (text_view),
3751 g_object_unref (G_OBJECT (child));
3753 tmp_list = tmp_list->next;
3756 g_list_free (child_exposes);
3760 gtk_text_view_expose_event (GtkWidget *widget, GdkEventExpose *event)
3762 if (event->window == gtk_text_view_get_window (GTK_TEXT_VIEW (widget),
3763 GTK_TEXT_WINDOW_TEXT))
3765 DV(g_print (">Exposed ("G_STRLOC")\n"));
3766 gtk_text_view_paint (widget, &event->area, event);
3769 if (event->window == widget->window)
3770 gtk_text_view_draw_focus (widget);
3776 gtk_text_view_draw_focus (GtkWidget *widget)
3778 gboolean interior_focus;
3780 /* We clear the focus if we are in interior focus mode. */
3781 gtk_widget_style_get (widget, "interior_focus", &interior_focus, NULL);
3783 if (GTK_WIDGET_DRAWABLE (widget))
3785 if (GTK_WIDGET_HAS_FOCUS (widget) && !interior_focus)
3787 gtk_paint_focus (widget->style, widget->window,
3788 NULL, widget, "textview",
3790 widget->allocation.width - 1,
3791 widget->allocation.height - 1);
3795 gdk_window_clear (widget->window);
3801 gtk_text_view_grab_focus (GtkWidget *widget)
3803 GtkTextView *text_view;
3805 text_view = GTK_TEXT_VIEW (widget);
3807 GTK_WIDGET_CLASS (parent_class)->grab_focus (widget);
3809 if (!text_view->disable_scroll_on_focus)
3810 gtk_text_view_scroll_mark_onscreen (text_view,
3811 gtk_text_buffer_get_mark (get_buffer (text_view),
3820 gtk_text_view_add (GtkContainer *container,
3823 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
3824 g_return_if_fail (GTK_IS_WIDGET (child));
3826 /* This is pretty random. */
3827 gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container),
3829 GTK_TEXT_WINDOW_WIDGET,
3834 gtk_text_view_remove (GtkContainer *container,
3838 GtkTextView *text_view;
3839 GtkTextViewChild *vc;
3841 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
3842 g_return_if_fail (GTK_IS_WIDGET (child));
3843 g_return_if_fail (child->parent == (GtkWidget*) container);
3845 text_view = GTK_TEXT_VIEW (container);
3848 iter = text_view->children;
3850 while (iter != NULL)
3854 if (vc->widget == child)
3857 iter = g_slist_next (iter);
3860 g_assert (iter != NULL); /* be sure we had the child in the list */
3862 text_view->children = g_slist_remove (text_view->children, vc);
3864 gtk_widget_unparent (vc->widget);
3866 text_view_child_free (vc);
3870 gtk_text_view_forall (GtkContainer *container,
3871 gboolean include_internals,
3872 GtkCallback callback,
3873 gpointer callback_data)
3876 GtkTextView *text_view;
3879 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
3880 g_return_if_fail (callback != NULL);
3882 text_view = GTK_TEXT_VIEW (container);
3884 copy = g_slist_copy (text_view->children);
3887 while (iter != NULL)
3889 GtkTextViewChild *vc = iter->data;
3891 (* callback) (vc->widget, callback_data);
3893 iter = g_slist_next (iter);
3896 g_slist_free (copy);
3899 #define CURSOR_ON_MULTIPLIER 0.66
3900 #define CURSOR_OFF_MULTIPLIER 0.34
3901 #define CURSOR_PEND_MULTIPLIER 1.0
3904 cursor_blinks (GtkTextView *text_view)
3906 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
3909 #ifdef DEBUG_VALIDATION_AND_SCROLLING
3912 if (gtk_debug_flags & GTK_DEBUG_UPDATES)
3915 g_object_get (G_OBJECT (settings), "gtk-cursor-blink", &blink, NULL);
3920 get_cursor_time (GtkTextView *text_view)
3922 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
3925 g_object_get (G_OBJECT (settings), "gtk-cursor-blink-time", &time, NULL);
3935 blink_cb (gpointer data)
3937 GtkTextView *text_view;
3940 GDK_THREADS_ENTER ();
3942 text_view = GTK_TEXT_VIEW (data);
3944 g_assert (text_view->layout);
3945 g_assert (GTK_WIDGET_HAS_FOCUS (text_view));
3946 g_assert (text_view->cursor_visible);
3948 visible = gtk_text_layout_get_cursor_visible (text_view->layout);
3951 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
3955 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER,
3959 gtk_text_layout_set_cursor_visible (text_view->layout,
3962 GDK_THREADS_LEAVE ();
3964 /* Remove ourselves */
3970 gtk_text_view_stop_cursor_blink (GtkTextView *text_view)
3972 if (text_view->blink_timeout)
3974 gtk_timeout_remove (text_view->blink_timeout);
3975 text_view->blink_timeout = 0;
3980 gtk_text_view_check_cursor_blink (GtkTextView *text_view)
3982 if (text_view->layout != NULL &&
3983 text_view->cursor_visible &&
3984 GTK_WIDGET_HAS_FOCUS (text_view))
3986 if (cursor_blinks (text_view))
3988 if (text_view->blink_timeout == 0)
3990 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
3992 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
3998 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
4002 gtk_text_view_stop_cursor_blink (text_view);
4007 gtk_text_view_pend_cursor_blink(GtkTextView *text_view)
4009 if (text_view->layout != NULL &&
4010 text_view->cursor_visible &&
4011 GTK_WIDGET_HAS_FOCUS (text_view) &&
4012 cursor_blinks (text_view))
4014 if (text_view->blink_timeout != 0)
4016 gtk_timeout_remove (text_view->blink_timeout);
4017 text_view->blink_timeout = 0;
4020 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
4022 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER,
4030 * Key binding handlers
4034 gtk_text_view_move_iter_by_lines (GtkTextView *text_view,
4035 GtkTextIter *newplace,
4040 gtk_text_layout_move_iter_to_previous_line (text_view->layout, newplace);
4046 gtk_text_layout_move_iter_to_next_line (text_view->layout, newplace);
4052 gtk_text_view_move_cursor (GtkTextView *text_view,
4053 GtkMovementStep step,
4055 gboolean extend_selection)
4058 GtkTextIter newplace;
4060 gint cursor_x_pos = 0;
4062 gtk_text_view_reset_im_context (text_view);
4064 if (step == GTK_MOVEMENT_PAGES)
4066 gtk_text_view_scroll_pages (text_view, count);
4067 gtk_text_view_pend_cursor_blink (text_view);
4071 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
4072 gtk_text_buffer_get_mark (get_buffer (text_view),
4076 if (step == GTK_MOVEMENT_DISPLAY_LINES)
4077 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, NULL);
4081 case GTK_MOVEMENT_LOGICAL_POSITIONS:
4082 gtk_text_iter_forward_cursor_positions (&newplace, count);
4085 case GTK_MOVEMENT_VISUAL_POSITIONS:
4086 gtk_text_layout_move_iter_visually (text_view->layout,
4090 case GTK_MOVEMENT_WORDS:
4092 gtk_text_iter_backward_word_starts (&newplace, -count);
4094 gtk_text_iter_forward_word_ends (&newplace, count);
4097 case GTK_MOVEMENT_DISPLAY_LINES:
4098 gtk_text_view_move_iter_by_lines (text_view, &newplace, count);
4099 gtk_text_layout_move_iter_to_x (text_view->layout, &newplace, cursor_x_pos);
4102 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
4104 gtk_text_view_move_iter_by_lines (text_view, &newplace, --count);
4105 else if (count < -1)
4106 gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count);
4109 gtk_text_layout_move_iter_to_line_end (text_view->layout, &newplace, count);
4112 case GTK_MOVEMENT_PARAGRAPHS:
4113 gtk_text_iter_forward_lines (&newplace, count);
4114 gtk_text_iter_set_line_offset (&newplace, 0);
4117 case GTK_MOVEMENT_PARAGRAPH_ENDS:
4120 if (!gtk_text_iter_ends_line (&newplace))
4121 gtk_text_iter_forward_to_line_end (&newplace);
4125 gtk_text_iter_set_line_offset (&newplace, 0);
4129 case GTK_MOVEMENT_BUFFER_ENDS:
4131 gtk_text_buffer_get_end_iter (get_buffer (text_view), &newplace);
4133 gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0);
4140 if (!gtk_text_iter_equal (&insert, &newplace))
4142 if (extend_selection)
4143 gtk_text_buffer_move_mark (get_buffer (text_view),
4144 gtk_text_buffer_get_mark (get_buffer (text_view),
4148 gtk_text_buffer_place_cursor (get_buffer (text_view), &newplace);
4150 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4151 gtk_text_view_scroll_mark_onscreen (text_view,
4152 gtk_text_buffer_get_mark (get_buffer (text_view),
4155 if (step == GTK_MOVEMENT_DISPLAY_LINES)
4157 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
4161 gtk_text_view_pend_cursor_blink (text_view);
4165 gtk_text_view_set_anchor (GtkTextView *text_view)
4169 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
4170 gtk_text_buffer_get_mark (get_buffer (text_view),
4173 gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
4177 gtk_text_view_scroll_pages (GtkTextView *text_view,
4182 gint cursor_x_pos, cursor_y_pos;
4183 GtkTextIter new_insert;
4187 g_return_if_fail (text_view->vadjustment != NULL);
4189 adj = text_view->vadjustment;
4191 /* Validate the region that will be brought into view by the cursor motion
4195 gtk_text_view_get_first_para_iter (text_view, &anchor);
4196 y0 = adj->page_size;
4197 y1 = adj->page_size + count * adj->page_increment;
4201 gtk_text_view_get_first_para_iter (text_view, &anchor);
4202 y0 = count * adj->page_increment + adj->page_size;
4206 gtk_text_layout_validate_yrange (text_view->layout, &anchor, y0, y1);
4207 /* FIXME do we need to update the adjustment ranges here? */
4209 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
4211 newval = adj->value;
4213 newval += count * adj->page_increment;
4215 cursor_y_pos += newval - adj->value;
4216 set_adjustment_clamped (adj, newval);
4218 gtk_text_layout_get_iter_at_pixel (text_view->layout, &new_insert, cursor_x_pos, cursor_y_pos);
4219 clamp_iter_onscreen (text_view, &new_insert);
4220 gtk_text_buffer_place_cursor (get_buffer (text_view), &new_insert);
4222 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
4224 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
4225 * only guarantees 1 pixel onscreen.
4227 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4228 gtk_text_view_scroll_mark_onscreen (text_view,
4229 gtk_text_buffer_get_mark (get_buffer (text_view),
4234 whitespace (gunichar ch, gpointer user_data)
4236 return (ch == ' ' || ch == '\t');
4240 not_whitespace (gunichar ch, gpointer user_data)
4242 return !whitespace (ch, user_data);
4246 find_whitepace_region (const GtkTextIter *center,
4247 GtkTextIter *start, GtkTextIter *end)
4252 if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL))
4253 gtk_text_iter_forward_char (start); /* we want the first whitespace... */
4254 if (whitespace (gtk_text_iter_get_char (end), NULL))
4255 gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL);
4257 return !gtk_text_iter_equal (start, end);
4261 gtk_text_view_insert_at_cursor (GtkTextView *text_view,
4264 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
4265 text_view->editable);
4269 gtk_text_view_delete_from_cursor (GtkTextView *text_view,
4276 gboolean leave_one = FALSE;
4278 gtk_text_view_reset_im_context (text_view);
4280 if (type == GTK_DELETE_CHARS)
4282 /* Char delete deletes the selection, if one exists */
4283 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
4284 text_view->editable))
4288 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
4290 gtk_text_buffer_get_mark (get_buffer (text_view),
4298 case GTK_DELETE_CHARS:
4299 gtk_text_iter_forward_cursor_positions (&end, count);
4302 case GTK_DELETE_WORD_ENDS:
4304 gtk_text_iter_forward_word_ends (&end, count);
4306 gtk_text_iter_backward_word_starts (&start, 0 - count);
4309 case GTK_DELETE_WORDS:
4312 case GTK_DELETE_DISPLAY_LINE_ENDS:
4315 case GTK_DELETE_DISPLAY_LINES:
4318 case GTK_DELETE_PARAGRAPH_ENDS:
4319 /* If we're already at a newline, we need to
4320 * simply delete that newline, instead of
4321 * moving to the next one.
4323 if (gtk_text_iter_ends_line (&end))
4325 gtk_text_iter_forward_line (&end);
4331 if (!gtk_text_iter_forward_to_line_end (&end))
4337 /* FIXME figure out what a negative count means
4341 case GTK_DELETE_PARAGRAPHS:
4344 gtk_text_iter_set_line_offset (&start, 0);
4345 gtk_text_iter_forward_to_line_end (&end);
4347 /* Do the lines beyond the first. */
4350 gtk_text_iter_forward_to_line_end (&end);
4356 /* FIXME negative count? */
4360 case GTK_DELETE_WHITESPACE:
4362 find_whitepace_region (&insert, &start, &end);
4370 if (!gtk_text_iter_equal (&start, &end))
4372 gtk_text_buffer_begin_user_action (get_buffer (text_view));
4374 if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end,
4375 text_view->editable))
4378 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view),
4380 text_view->editable);
4383 gtk_text_buffer_end_user_action (get_buffer (text_view));
4385 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4386 gtk_text_view_scroll_mark_onscreen (text_view,
4387 gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
4392 gtk_text_view_cut_clipboard (GtkTextView *text_view)
4394 gtk_text_buffer_cut_clipboard (get_buffer (text_view),
4395 gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
4396 text_view->editable);
4397 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4398 gtk_text_view_scroll_mark_onscreen (text_view,
4399 gtk_text_buffer_get_mark (get_buffer (text_view),
4404 gtk_text_view_copy_clipboard (GtkTextView *text_view)
4406 gtk_text_buffer_copy_clipboard (get_buffer (text_view),
4407 gtk_clipboard_get (GDK_SELECTION_CLIPBOARD));
4408 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4409 gtk_text_view_scroll_mark_onscreen (text_view,
4410 gtk_text_buffer_get_mark (get_buffer (text_view),
4415 gtk_text_view_paste_clipboard (GtkTextView *text_view)
4417 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
4418 gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
4420 text_view->editable);
4421 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4422 gtk_text_view_scroll_mark_onscreen (text_view,
4423 gtk_text_buffer_get_mark (get_buffer (text_view),
4428 gtk_text_view_toggle_overwrite (GtkTextView *text_view)
4430 text_view->overwrite_mode = !text_view->overwrite_mode;
4438 gtk_text_view_unselect (GtkTextView *text_view)
4442 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
4444 gtk_text_buffer_get_mark (get_buffer (text_view),
4447 gtk_text_buffer_move_mark (get_buffer (text_view),
4448 gtk_text_buffer_get_mark (get_buffer (text_view),
4454 move_mark_to_pointer_and_scroll (GtkTextView *text_view,
4455 const gchar *mark_name)
4458 GdkModifierType state;
4459 GtkTextIter newplace;
4461 /* DV(g_print (G_STRLOC": begin\n")); */
4463 gdk_window_get_pointer (text_view->text_window->bin_window,
4466 /* DV(g_print (G_STRLOC": get iter at pixel\n"); */
4467 gtk_text_layout_get_iter_at_pixel (text_view->layout,
4469 x + text_view->xoffset,
4470 y + text_view->yoffset);
4474 gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
4476 DV(g_print (G_STRLOC": move mark\n"));
4477 gtk_text_buffer_move_mark (get_buffer (text_view),
4481 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4482 gtk_text_view_scroll_mark_onscreen (text_view, mark);
4487 selection_scan_timeout (gpointer data)
4489 GtkTextView *text_view;
4491 GDK_THREADS_ENTER ();
4493 text_view = GTK_TEXT_VIEW (data);
4495 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
4496 move_mark_to_pointer_and_scroll (text_view, "insert");
4498 GDK_THREADS_LEAVE ();
4500 return TRUE; /* remain installed. */
4503 #define DND_SCROLL_MARGIN 0.20
4506 drag_scan_timeout (gpointer data)
4508 GtkTextView *text_view;
4510 GdkModifierType state;
4511 GtkTextIter newplace;
4513 GDK_THREADS_ENTER ();
4515 text_view = GTK_TEXT_VIEW (data);
4517 gdk_window_get_pointer (text_view->text_window->bin_window,
4520 gtk_text_layout_get_iter_at_pixel (text_view->layout,
4522 x + text_view->xoffset,
4523 y + text_view->yoffset);
4525 gtk_text_buffer_move_mark (get_buffer (text_view),
4526 text_view->dnd_mark,
4529 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4530 gtk_text_view_scroll_to_mark (text_view,
4531 text_view->dnd_mark,
4532 DND_SCROLL_MARGIN, FALSE, 0.0, 0.0);
4534 GDK_THREADS_LEAVE ();
4540 selection_motion_event_handler (GtkTextView *text_view, GdkEventMotion *event, gpointer data)
4542 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
4543 move_mark_to_pointer_and_scroll (text_view, "insert");
4545 /* If we had to scroll offscreen, insert a timeout to do so
4546 * again. Note that in the timeout, even if the mouse doesn't
4547 * move, due to this scroll xoffset/yoffset will have changed
4548 * and we'll need to scroll again.
4550 if (text_view->scroll_timeout != 0) /* reset on every motion event */
4551 gtk_timeout_remove (text_view->scroll_timeout);
4553 text_view->scroll_timeout =
4554 gtk_timeout_add (50, selection_scan_timeout, text_view);
4560 gtk_text_view_start_selection_drag (GtkTextView *text_view,
4561 const GtkTextIter *iter,
4562 GdkEventButton *button)
4564 GtkTextIter newplace;
4566 g_return_if_fail (text_view->selection_drag_handler == 0);
4568 gtk_grab_add (GTK_WIDGET (text_view));
4572 gtk_text_buffer_place_cursor (get_buffer (text_view), &newplace);
4574 text_view->selection_drag_handler = gtk_signal_connect (GTK_OBJECT (text_view),
4575 "motion_notify_event",
4576 GTK_SIGNAL_FUNC (selection_motion_event_handler),
4580 /* returns whether we were really dragging */
4582 gtk_text_view_end_selection_drag (GtkTextView *text_view, GdkEventButton *event)
4584 if (text_view->selection_drag_handler == 0)
4587 gtk_signal_disconnect (GTK_OBJECT (text_view), text_view->selection_drag_handler);
4588 text_view->selection_drag_handler = 0;
4590 if (text_view->scroll_timeout != 0)
4592 gtk_timeout_remove (text_view->scroll_timeout);
4593 text_view->scroll_timeout = 0;
4596 /* one last update to current position */
4597 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
4598 move_mark_to_pointer_and_scroll (text_view, "insert");
4600 gtk_grab_remove (GTK_WIDGET (text_view));
4610 gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
4611 GtkTextAttributes *values,
4614 values->appearance.bg_color = style->base[GTK_STATE_NORMAL];
4615 values->appearance.fg_color = style->text[GTK_STATE_NORMAL];
4618 pango_font_description_free (values->font);
4620 values->font = pango_font_description_copy (style->font_desc);
4624 gtk_text_view_check_keymap_direction (GtkTextView *text_view)
4626 if (text_view->layout)
4628 gboolean split_cursor;
4629 GtkTextDirection new_dir;
4630 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
4632 g_object_get (G_OBJECT (settings),
4633 "gtk-split-cursor", &split_cursor,
4636 new_dir = GTK_TEXT_DIR_NONE;
4638 new_dir = (gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
4639 GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
4641 if (text_view->layout->cursor_direction != new_dir)
4642 gtk_text_layout_set_cursor_direction (text_view->layout, new_dir);
4647 gtk_text_view_ensure_layout (GtkTextView *text_view)
4651 widget = GTK_WIDGET (text_view);
4653 if (text_view->layout == NULL)
4655 GtkTextAttributes *style;
4656 PangoContext *ltr_context, *rtl_context;
4659 DV(g_print(G_STRLOC"\n"));
4661 text_view->layout = gtk_text_layout_new ();
4663 g_signal_connect (G_OBJECT (text_view->layout),
4665 G_CALLBACK (invalidated_handler),
4668 g_signal_connect (G_OBJECT (text_view->layout),
4670 G_CALLBACK (changed_handler),
4673 g_signal_connect (G_OBJECT (text_view->layout),
4675 G_CALLBACK (gtk_text_view_child_allocated),
4678 if (get_buffer (text_view))
4679 gtk_text_layout_set_buffer (text_view->layout, get_buffer (text_view));
4681 if ((GTK_WIDGET_HAS_FOCUS (text_view) && text_view->cursor_visible))
4682 gtk_text_view_pend_cursor_blink (text_view);
4684 gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
4686 ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
4687 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
4688 rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
4689 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
4691 gtk_text_layout_set_contexts (text_view->layout, ltr_context, rtl_context);
4693 g_object_unref (G_OBJECT (ltr_context));
4694 g_object_unref (G_OBJECT (rtl_context));
4696 gtk_text_view_check_keymap_direction (text_view);
4698 style = gtk_text_attributes_new ();
4700 gtk_widget_ensure_style (widget);
4701 gtk_text_view_set_attributes_from_style (text_view,
4702 style, widget->style);
4704 style->pixels_above_lines = text_view->pixels_above_lines;
4705 style->pixels_below_lines = text_view->pixels_below_lines;
4706 style->pixels_inside_wrap = text_view->pixels_inside_wrap;
4707 style->left_margin = text_view->left_margin;
4708 style->right_margin = text_view->right_margin;
4709 style->indent = text_view->indent;
4710 style->tabs = text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
4712 style->wrap_mode = text_view->wrap_mode;
4713 style->justification = text_view->justify;
4714 style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view));
4716 gtk_text_layout_set_default_style (text_view->layout, style);
4718 gtk_text_attributes_unref (style);
4720 /* Set layout for all anchored children */
4722 tmp_list = text_view->children;
4723 while (tmp_list != NULL)
4725 GtkTextViewChild *vc = tmp_list->data;
4729 gtk_text_anchored_child_set_layout (vc->widget,
4731 /* vc may now be invalid! */
4734 tmp_list = g_slist_next (tmp_list);
4740 * gtk_text_view_get_default_attributes:
4741 * @text_view: a #GtkTextView
4743 * Obtains a copy of the default text attributes. These are the
4744 * attributes used for text unless a tag overrides them.
4745 * You'd typically pass the default attributes in to
4746 * gtk_text_tag_get_attributes() in order to get the
4747 * attributes in effect at a given text position.
4749 * The return value is a copy owned by the caller of this function,
4750 * and should be freed.
4752 * Return value: a new #GtkTextAttributes
4755 gtk_text_view_get_default_attributes (GtkTextView *text_view)
4757 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
4759 gtk_text_view_ensure_layout (text_view);
4761 return gtk_text_attributes_copy (text_view->layout->default_style);
4765 gtk_text_view_destroy_layout (GtkTextView *text_view)
4767 if (text_view->layout)
4771 gtk_text_view_remove_validate_idles (text_view);
4773 /* Remove layout from all anchored children */
4774 tmp_list = text_view->children;
4775 while (tmp_list != NULL)
4777 GtkTextViewChild *vc = tmp_list->data;
4781 gtk_text_anchored_child_set_layout (vc->widget, NULL);
4782 /* vc may now be invalid! */
4785 tmp_list = g_slist_next (tmp_list);
4788 gtk_text_view_stop_cursor_blink (text_view);
4789 gtk_text_view_end_selection_drag (text_view, NULL);
4791 g_signal_handlers_disconnect_by_func (G_OBJECT (text_view->layout),
4792 invalidated_handler, text_view);
4793 g_signal_handlers_disconnect_by_func (G_OBJECT (text_view->layout),
4794 changed_handler, text_view);
4795 g_object_unref (G_OBJECT (text_view->layout));
4796 text_view->layout = NULL;
4801 gtk_text_view_reset_im_context (GtkTextView *text_view)
4803 if (text_view->need_im_reset)
4805 text_view->need_im_reset = FALSE;
4806 gtk_im_context_reset (text_view->im_context);
4815 gtk_text_view_start_selection_dnd (GtkTextView *text_view,
4816 const GtkTextIter *iter,
4817 GdkEventMotion *event)
4819 GdkDragContext *context;
4820 GtkTargetList *target_list;
4822 text_view->drag_start_x = -1;
4823 text_view->drag_start_y = -1;
4824 text_view->pending_place_cursor_button = 0;
4826 target_list = gtk_target_list_new (target_table,
4827 G_N_ELEMENTS (target_table));
4829 context = gtk_drag_begin (GTK_WIDGET (text_view), target_list,
4830 GDK_ACTION_COPY | GDK_ACTION_MOVE,
4831 1, (GdkEvent*)event);
4833 gtk_target_list_unref (target_list);
4835 gtk_drag_set_icon_default (context);
4839 gtk_text_view_drag_begin (GtkWidget *widget,
4840 GdkDragContext *context)
4846 gtk_text_view_drag_end (GtkWidget *widget,
4847 GdkDragContext *context)
4849 GtkTextView *text_view;
4851 text_view = GTK_TEXT_VIEW (widget);
4855 gtk_text_view_drag_data_get (GtkWidget *widget,
4856 GdkDragContext *context,
4857 GtkSelectionData *selection_data,
4861 GtkTextView *text_view;
4863 text_view = GTK_TEXT_VIEW (widget);
4865 if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
4867 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
4869 gtk_selection_data_set (selection_data,
4870 gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE),
4883 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
4886 /* Extract the selected text */
4887 str = gtk_text_iter_get_visible_text (&start, &end);
4892 gtk_selection_data_set_text (selection_data, str, -1);
4899 gtk_text_view_drag_data_delete (GtkWidget *widget,
4900 GdkDragContext *context)
4902 GtkTextView *text_view;
4904 text_view = GTK_TEXT_VIEW (widget);
4906 gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->buffer,
4907 TRUE, GTK_TEXT_VIEW (widget)->editable);
4911 gtk_text_view_drag_leave (GtkWidget *widget,
4912 GdkDragContext *context,
4915 GtkTextView *text_view;
4917 text_view = GTK_TEXT_VIEW (widget);
4919 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
4921 if (text_view->scroll_timeout != 0)
4922 gtk_timeout_remove (text_view->scroll_timeout);
4924 text_view->scroll_timeout = 0;
4928 gtk_text_view_drag_motion (GtkWidget *widget,
4929 GdkDragContext *context,
4934 GtkTextIter newplace;
4935 GtkTextView *text_view;
4938 GdkRectangle target_rect;
4940 GdkDragAction suggested_action = 0;
4942 text_view = GTK_TEXT_VIEW (widget);
4944 target_rect = text_view->text_window->allocation;
4946 if (x < target_rect.x ||
4947 y < target_rect.y ||
4948 x > (target_rect.x + target_rect.width) ||
4949 y > (target_rect.y + target_rect.height))
4950 return FALSE; /* outside the text window, allow parent widgets to handle event */
4952 gtk_text_view_window_to_buffer_coords (text_view,
4953 GTK_TEXT_WINDOW_WIDGET,
4957 gtk_text_layout_get_iter_at_pixel (text_view->layout,
4961 if (gtk_drag_dest_find_target (widget, context,
4962 gtk_drag_dest_get_target_list (widget)) == GDK_NONE)
4964 /* can't accept any of the offered targets */
4966 else if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
4968 gtk_text_iter_in_range (&newplace, &start, &end))
4970 /* We're inside the selection. */
4974 if (gtk_text_iter_can_insert (&newplace, text_view->editable))
4976 GtkWidget *source_widget;
4978 suggested_action = context->suggested_action;
4980 source_widget = gtk_drag_get_source_widget (context);
4982 if (source_widget == widget)
4984 /* Default to MOVE, unless the user has
4985 * pressed ctrl or alt to affect available actions
4987 if ((context->actions & GDK_ACTION_MOVE) != 0)
4988 suggested_action = GDK_ACTION_MOVE;
4993 /* Can't drop here. */
4997 if (suggested_action != 0)
4999 gtk_text_mark_set_visible (text_view->dnd_mark,
5000 text_view->cursor_visible);
5002 gdk_drag_status (context, suggested_action, time);
5006 gdk_drag_status (context, 0, time);
5007 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
5010 gtk_text_buffer_move_mark (get_buffer (text_view),
5011 text_view->dnd_mark,
5014 DV(g_print (G_STRLOC": scrolling to mark\n"));
5015 gtk_text_view_scroll_to_mark (text_view,
5016 text_view->dnd_mark,
5017 DND_SCROLL_MARGIN, FALSE, 0.0, 0.0);
5019 if (text_view->scroll_timeout != 0) /* reset on every motion event */
5020 gtk_timeout_remove (text_view->scroll_timeout);
5022 text_view->scroll_timeout =
5023 gtk_timeout_add (50, drag_scan_timeout, text_view);
5025 /* TRUE return means don't propagate the drag motion to parent
5026 * widgets that may also be drop sites.
5032 gtk_text_view_drag_drop (GtkWidget *widget,
5033 GdkDragContext *context,
5038 GtkTextView *text_view;
5039 GtkTextIter drop_point;
5040 GdkAtom target = GDK_NONE;
5042 text_view = GTK_TEXT_VIEW (widget);
5044 if (text_view->scroll_timeout != 0)
5045 gtk_timeout_remove (text_view->scroll_timeout);
5047 text_view->scroll_timeout = 0;
5049 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
5051 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5053 text_view->dnd_mark);
5055 if (gtk_text_iter_can_insert (&drop_point, text_view->editable))
5056 target = gtk_drag_dest_find_target (widget, context, NULL);
5058 if (target != GDK_NONE)
5059 gtk_drag_get_data (widget, context, target, time);
5061 gtk_drag_finish (context, FALSE, FALSE, time);
5067 insert_text_data (GtkTextView *text_view,
5068 GtkTextIter *drop_point,
5069 GtkSelectionData *selection_data)
5073 str = gtk_selection_data_get_text (selection_data);
5077 gtk_text_buffer_insert_interactive (get_buffer (text_view),
5078 drop_point, str, -1,
5079 text_view->editable);
5085 gtk_text_view_drag_data_received (GtkWidget *widget,
5086 GdkDragContext *context,
5089 GtkSelectionData *selection_data,
5093 GtkTextIter drop_point;
5094 GtkTextView *text_view;
5095 gboolean success = FALSE;
5097 text_view = GTK_TEXT_VIEW (widget);
5099 if (!text_view->dnd_mark)
5102 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5104 text_view->dnd_mark);
5106 if (!gtk_text_iter_can_insert (&drop_point, text_view->editable))
5109 if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
5111 GtkTextBuffer *src_buffer = NULL;
5112 GtkTextIter start, end;
5113 gboolean copy_tags = TRUE;
5115 if (selection_data->length != sizeof (src_buffer))
5118 memcpy (&src_buffer, selection_data->data, sizeof (src_buffer));
5120 if (src_buffer == NULL)
5123 g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer));
5125 if (gtk_text_buffer_get_tag_table (src_buffer) !=
5126 gtk_text_buffer_get_tag_table (get_buffer (text_view)))
5129 if (gtk_text_buffer_get_selection_bounds (src_buffer,
5134 gtk_text_buffer_insert_range_interactive (get_buffer (text_view),
5138 text_view->editable);
5143 str = gtk_text_iter_get_visible_text (&start, &end);
5144 gtk_text_buffer_insert_interactive (get_buffer (text_view),
5145 &drop_point, str, -1,
5146 text_view->editable);
5152 insert_text_data (text_view, &drop_point, selection_data);
5157 gtk_drag_finish (context, success,
5158 success && context->action == GDK_ACTION_MOVE,
5162 static GtkAdjustment*
5163 get_hadjustment (GtkTextView *text_view)
5165 if (text_view->hadjustment == NULL)
5166 gtk_text_view_set_scroll_adjustments (text_view,
5167 NULL, /* forces creation */
5168 text_view->vadjustment);
5170 return text_view->hadjustment;
5173 static GtkAdjustment*
5174 get_vadjustment (GtkTextView *text_view)
5176 if (text_view->vadjustment == NULL)
5177 gtk_text_view_set_scroll_adjustments (text_view,
5178 text_view->hadjustment,
5179 NULL); /* forces creation */
5180 return text_view->vadjustment;
5185 gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
5186 GtkAdjustment *hadj,
5187 GtkAdjustment *vadj)
5189 gboolean need_adjust = FALSE;
5191 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
5194 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
5196 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
5198 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
5200 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
5202 if (text_view->hadjustment && (text_view->hadjustment != hadj))
5204 gtk_signal_disconnect_by_data (GTK_OBJECT (text_view->hadjustment), text_view);
5205 g_object_unref (G_OBJECT (text_view->hadjustment));
5208 if (text_view->vadjustment && (text_view->vadjustment != vadj))
5210 gtk_signal_disconnect_by_data (GTK_OBJECT (text_view->vadjustment), text_view);
5211 g_object_unref (G_OBJECT (text_view->vadjustment));
5214 if (text_view->hadjustment != hadj)
5216 text_view->hadjustment = hadj;
5217 g_object_ref (G_OBJECT (text_view->hadjustment));
5218 gtk_object_sink (GTK_OBJECT (text_view->hadjustment));
5220 gtk_signal_connect (GTK_OBJECT (text_view->hadjustment), "value_changed",
5221 (GtkSignalFunc) gtk_text_view_value_changed,
5226 if (text_view->vadjustment != vadj)
5228 text_view->vadjustment = vadj;
5229 g_object_ref (G_OBJECT (text_view->vadjustment));
5230 gtk_object_sink (GTK_OBJECT (text_view->vadjustment));
5232 gtk_signal_connect (GTK_OBJECT (text_view->vadjustment), "value_changed",
5233 (GtkSignalFunc) gtk_text_view_value_changed,
5239 gtk_text_view_value_changed (NULL, text_view);
5243 gtk_text_view_value_changed (GtkAdjustment *adj,
5244 GtkTextView *text_view)
5251 /* Note that we oddly call this function with adj == NULL
5255 text_view->onscreen_validated = FALSE;
5257 DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n",
5258 adj == text_view->hadjustment ? "hadj" : adj == text_view->vadjustment ? "vadj" : "none",
5259 adj ? adj->value : 0.0));
5261 if (adj == text_view->hadjustment)
5263 dx = text_view->xoffset - (gint)adj->value;
5264 text_view->xoffset = adj->value;
5266 else if (adj == text_view->vadjustment)
5268 dy = text_view->yoffset - (gint)adj->value;
5269 text_view->yoffset = adj->value;
5271 if (text_view->layout)
5273 gtk_text_layout_get_line_at_y (text_view->layout, &iter, adj->value, &line_top);
5275 gtk_text_buffer_move_mark (get_buffer (text_view), text_view->first_para_mark, &iter);
5277 text_view->first_para_pixels = adj->value - line_top;
5281 if (dx != 0 || dy != 0)
5285 if (GTK_WIDGET_REALIZED (text_view))
5289 if (text_view->left_window)
5290 text_window_scroll (text_view->left_window, 0, dy);
5291 if (text_view->right_window)
5292 text_window_scroll (text_view->right_window, 0, dy);
5297 if (text_view->top_window)
5298 text_window_scroll (text_view->top_window, dx, 0);
5299 if (text_view->bottom_window)
5300 text_window_scroll (text_view->bottom_window, dx, 0);
5303 /* It looks nicer to scroll the main area last, because
5304 * it takes a while, and making the side areas update
5305 * afterward emphasizes the slowness of scrolling the
5308 text_window_scroll (text_view->text_window, dx, dy);
5311 /* Children are now "moved" in the text window, poke
5312 * into widget->allocation for each child
5314 tmp_list = text_view->children;
5315 while (tmp_list != NULL)
5317 GtkTextViewChild *child = tmp_list->data;
5321 child->widget->allocation.x -= dx;
5322 child->widget->allocation.y -= dy;
5325 g_print ("allocation for %p tweaked to %d,%d\n",
5327 child->widget->allocation.x,
5328 child->widget->allocation.y);
5332 tmp_list = g_slist_next (tmp_list);
5336 /* This could result in invalidation, which would install the
5337 * first_validate_idle, which would validate onscreen;
5338 * but we're going to go ahead and validate here, so
5339 * first_validate_idle shouldn't have anything to do.
5341 gtk_text_view_update_layout_width (text_view);
5343 /* note that validation of onscreen could invoke this function
5344 * recursively, by scrolling to maintain first_para, or in response
5345 * to updating the layout width, however there is no problem with
5346 * that, or shouldn't be.
5348 gtk_text_view_validate_onscreen (text_view);
5350 /* process exposes */
5351 if (GTK_WIDGET_REALIZED (text_view))
5353 if (text_view->left_window)
5354 gdk_window_process_updates (text_view->left_window->bin_window, TRUE);
5356 if (text_view->right_window)
5357 gdk_window_process_updates (text_view->right_window->bin_window, TRUE);
5359 if (text_view->top_window)
5360 gdk_window_process_updates (text_view->top_window->bin_window, TRUE);
5362 if (text_view->bottom_window)
5363 gdk_window_process_updates (text_view->bottom_window->bin_window, TRUE);
5365 gdk_window_process_updates (text_view->text_window->bin_window, TRUE);
5368 /* If this got installed, get rid of it, it's just a waste of time. */
5369 if (text_view->first_validate_idle != 0)
5371 g_source_remove (text_view->first_validate_idle);
5372 text_view->first_validate_idle = 0;
5375 gtk_text_view_update_im_spot_location (text_view);
5377 DV(g_print(">End scroll offset changed handler ("G_STRLOC")\n"));
5381 gtk_text_view_commit_handler (GtkIMContext *context,
5383 GtkTextView *text_view)
5385 gtk_text_view_commit_text (text_view, str);
5389 gtk_text_view_commit_text (GtkTextView *text_view,
5392 gboolean had_selection;
5394 gtk_text_buffer_begin_user_action (get_buffer (text_view));
5396 had_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
5399 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5400 text_view->editable);
5402 if (!strcmp (str, "\n"))
5404 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
5405 text_view->editable);
5409 if (!had_selection && text_view->overwrite_mode)
5410 gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
5411 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
5412 text_view->editable);
5415 gtk_text_buffer_end_user_action (get_buffer (text_view));
5417 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5418 gtk_text_view_scroll_mark_onscreen (text_view,
5419 gtk_text_buffer_get_mark (get_buffer (text_view),
5424 gtk_text_view_preedit_changed_handler (GtkIMContext *context,
5425 GtkTextView *text_view)
5428 PangoAttrList *attrs;
5431 gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos);
5432 gtk_text_layout_set_preedit_string (text_view->layout, str, attrs, cursor_pos);
5434 pango_attr_list_unref (attrs);
5439 gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
5440 GtkTextView *text_view)
5447 gtk_text_buffer_get_iter_at_mark (text_view->buffer, &start,
5448 gtk_text_buffer_get_insert (text_view->buffer));
5451 pos = gtk_text_iter_get_line_index (&start);
5452 gtk_text_iter_set_line_offset (&start, 0);
5453 gtk_text_iter_forward_to_line_end (&end);
5455 text = gtk_text_iter_get_slice (&start, &end);
5456 gtk_im_context_set_surrounding (context, text, -1, pos);
5463 gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
5466 GtkTextView *text_view)
5471 gtk_text_buffer_get_iter_at_mark (text_view->buffer, &start,
5472 gtk_text_buffer_get_insert (text_view->buffer));
5475 gtk_text_iter_forward_chars (&start, offset);
5476 gtk_text_iter_forward_chars (&end, offset + n_chars);
5478 gtk_text_buffer_delete (text_view->buffer, &start, &end);
5484 gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
5485 const GtkTextIter *location,
5489 GtkTextView *text_view = GTK_TEXT_VIEW (data);
5490 gboolean need_reset = FALSE;
5492 if (mark == gtk_text_buffer_get_insert (buffer))
5494 text_view->virtual_cursor_x = -1;
5495 text_view->virtual_cursor_y = -1;
5496 gtk_text_view_update_im_spot_location (text_view);
5499 else if (mark == gtk_text_buffer_get_selection_bound (buffer))
5505 gtk_text_view_reset_im_context (text_view);
5509 gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
5513 GdkRectangle strong_pos;
5516 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5517 gtk_text_buffer_get_mark (get_buffer (text_view),
5520 if ((x && text_view->virtual_cursor_x == -1) ||
5521 (y && text_view->virtual_cursor_y == -1))
5522 gtk_text_layout_get_cursor_locations (text_view->layout, &insert, &strong_pos, NULL);
5526 if (text_view->virtual_cursor_x != -1)
5527 *x = text_view->virtual_cursor_x;
5534 if (text_view->virtual_cursor_x != -1)
5535 *y = text_view->virtual_cursor_y;
5537 *y = strong_pos.y + strong_pos.height / 2;
5542 gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
5546 GdkRectangle strong_pos;
5549 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5550 gtk_text_buffer_get_mark (get_buffer (text_view),
5553 if (x == -1 || y == -1)
5554 gtk_text_layout_get_cursor_locations (text_view->layout, &insert, &strong_pos, NULL);
5556 text_view->virtual_cursor_x = (x == -1) ? strong_pos.x : x;
5557 text_view->virtual_cursor_y = (y == -1) ? strong_pos.y + strong_pos.height / 2 : y;
5560 /* Quick hack of a popup menu
5563 activate_cb (GtkWidget *menuitem,
5564 GtkTextView *text_view)
5566 const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
5567 gtk_signal_emit_by_name (GTK_OBJECT (text_view), signal);
5571 append_action_signal (GtkTextView *text_view,
5573 const gchar *stock_id,
5574 const gchar *signal,
5577 GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
5579 g_object_set_data (G_OBJECT (menuitem), "gtk-signal", (char *)signal);
5580 gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
5581 GTK_SIGNAL_FUNC (activate_cb), text_view);
5583 gtk_widget_set_sensitive (menuitem, sensitive);
5585 gtk_widget_show (menuitem);
5586 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
5590 popup_menu_detach (GtkWidget *attach_widget,
5593 GTK_TEXT_VIEW (attach_widget)->popup_menu = NULL;
5597 popup_position_func (GtkMenu *menu,
5603 GtkTextView *text_view;
5605 GdkRectangle cursor_rect;
5606 GdkRectangle onscreen_rect;
5607 gint root_x, root_y;
5611 text_view = GTK_TEXT_VIEW (user_data);
5612 widget = GTK_WIDGET (text_view);
5614 g_return_if_fail (GTK_WIDGET_REALIZED (text_view));
5616 gdk_window_get_origin (widget->window, &root_x, &root_y);
5618 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5620 gtk_text_buffer_get_insert (get_buffer (text_view)));
5622 gtk_text_view_get_iter_location (text_view,
5626 gtk_text_view_get_visible_rect (text_view, &onscreen_rect);
5628 gtk_widget_size_request (text_view->popup_menu, &req);
5630 /* can't use rectangle_intersect since cursor rect can have 0 width */
5631 if (cursor_rect.x >= onscreen_rect.x &&
5632 cursor_rect.x < onscreen_rect.x + onscreen_rect.width &&
5633 cursor_rect.y >= onscreen_rect.y &&
5634 cursor_rect.y < onscreen_rect.y + onscreen_rect.height)
5636 gtk_text_view_buffer_to_window_coords (text_view,
5637 GTK_TEXT_WINDOW_WIDGET,
5638 cursor_rect.x, cursor_rect.y,
5639 &cursor_rect.x, &cursor_rect.y);
5641 *x = root_x + cursor_rect.x + cursor_rect.width;
5642 *y = root_y + cursor_rect.y + cursor_rect.height;
5646 /* Just center the menu, since cursor is offscreen. */
5647 *x = root_x + (widget->allocation.width / 2 - req.width / 2);
5648 *y = root_y + (widget->allocation.height / 2 - req.height / 2);
5652 *x = CLAMP (*x, root_x, (root_x + widget->allocation.width));
5653 *y = CLAMP (*y, root_y, (root_y + widget->allocation.height));
5655 *x = CLAMP (*x, 0, MAX (0, gdk_screen_width () - req.width));
5656 *y = CLAMP (*y, 0, MAX (0, gdk_screen_height () - req.height));
5661 GtkTextView *text_view;
5667 range_contains_editable_text (const GtkTextIter *start,
5668 const GtkTextIter *end,
5669 gboolean default_editability)
5671 GtkTextIter iter = *start;
5673 while (gtk_text_iter_compare (&iter, end) < 0)
5675 if (gtk_text_iter_editable (&iter, default_editability))
5678 gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
5685 popup_targets_received (GtkClipboard *clipboard,
5686 GtkSelectionData *data,
5689 PopupInfo *info = user_data;
5690 GtkTextView *text_view = info->text_view;
5692 if (GTK_WIDGET_REALIZED (text_view))
5694 /* We implicitely rely here on the fact that if we are pasting ourself, we'll
5695 * have text targets as well as the private GTK_TEXT_BUFFER_CONTENTS target.
5697 gboolean clipboard_contains_text = gtk_selection_data_targets_include_text (data);
5698 GtkWidget *menuitem;
5700 gboolean have_selection;
5701 gboolean can_insert;
5703 GtkTextIter sel_start, sel_end;
5705 if (text_view->popup_menu)
5706 gtk_widget_destroy (text_view->popup_menu);
5708 text_view->popup_menu = gtk_menu_new ();
5710 gtk_menu_attach_to_widget (GTK_MENU (text_view->popup_menu),
5711 GTK_WIDGET (text_view),
5714 have_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
5715 &sel_start, &sel_end);
5717 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5719 gtk_text_buffer_get_insert (get_buffer (text_view)));
5721 can_insert = gtk_text_iter_can_insert (&iter, text_view->editable);
5723 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_CUT, "cut_clipboard",
5725 range_contains_editable_text (&sel_start, &sel_end,
5726 text_view->editable));
5727 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_COPY, "copy_clipboard",
5729 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_PASTE, "paste_clipboard",
5730 can_insert && clipboard_contains_text);
5732 menuitem = gtk_separator_menu_item_new ();
5733 gtk_widget_show (menuitem);
5734 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
5736 menuitem = gtk_menu_item_new_with_label (_("Input Methods"));
5737 gtk_widget_show (menuitem);
5738 submenu = gtk_menu_new ();
5739 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
5740 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
5742 gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (text_view->im_context),
5743 GTK_MENU_SHELL (submenu));
5745 gtk_signal_emit (GTK_OBJECT (text_view),
5746 signals[POPULATE_POPUP],
5747 text_view->popup_menu);
5750 gtk_menu_popup (GTK_MENU (text_view->popup_menu), NULL, NULL,
5752 info->button, info->time);
5754 gtk_menu_popup (GTK_MENU (text_view->popup_menu), NULL, NULL,
5755 popup_position_func, text_view,
5756 0, gtk_get_current_event_time ());
5759 g_object_unref (text_view);
5764 gtk_text_view_do_popup (GtkTextView *text_view,
5765 GdkEventButton *event)
5767 PopupInfo *info = g_new (PopupInfo, 1);
5769 /* In order to know what entries we should make sensitive, we
5770 * ask for the current targets of the clipboard, and when
5771 * we get them, then we actually pop up the menu.
5773 info->text_view = g_object_ref (text_view);
5777 info->button = event->button;
5778 info->time = event->time;
5783 info->time = gtk_get_current_event_time ();
5786 gtk_clipboard_request_contents (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
5787 gdk_atom_intern ("TARGETS", FALSE),
5788 popup_targets_received,
5793 gtk_text_view_popup_menu (GtkWidget *widget)
5795 gtk_text_view_do_popup (GTK_TEXT_VIEW (widget), NULL);
5798 /* Child GdkWindows */
5801 static GtkTextWindow*
5802 text_window_new (GtkTextWindowType type,
5805 gint height_request)
5809 win = g_new (GtkTextWindow, 1);
5812 win->widget = widget;
5814 win->bin_window = NULL;
5815 win->requisition.width = width_request;
5816 win->requisition.height = height_request;
5817 win->allocation.width = width_request;
5818 win->allocation.height = height_request;
5819 win->allocation.x = 0;
5820 win->allocation.y = 0;
5826 text_window_free (GtkTextWindow *win)
5829 text_window_unrealize (win);
5835 text_window_realize (GtkTextWindow *win,
5838 GdkWindowAttr attributes;
5839 gint attributes_mask;
5842 attributes.window_type = GDK_WINDOW_CHILD;
5843 attributes.x = win->allocation.x;
5844 attributes.y = win->allocation.y;
5845 attributes.width = win->allocation.width;
5846 attributes.height = win->allocation.height;
5847 attributes.wclass = GDK_INPUT_OUTPUT;
5848 attributes.visual = gtk_widget_get_visual (win->widget);
5849 attributes.colormap = gtk_widget_get_colormap (win->widget);
5850 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
5852 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
5854 win->window = gdk_window_new (parent,
5858 gdk_window_show (win->window);
5859 gdk_window_set_user_data (win->window, win->widget);
5863 attributes.width = win->allocation.width;
5864 attributes.height = win->allocation.height;
5865 attributes.event_mask = (GDK_EXPOSURE_MASK |
5867 GDK_KEY_PRESS_MASK |
5868 GDK_BUTTON_PRESS_MASK |
5869 GDK_BUTTON_RELEASE_MASK |
5870 GDK_POINTER_MOTION_MASK |
5871 GDK_POINTER_MOTION_HINT_MASK |
5872 gtk_widget_get_events (win->widget));
5874 win->bin_window = gdk_window_new (win->window,
5878 gdk_window_show (win->bin_window);
5879 gdk_window_set_user_data (win->bin_window, win->widget);
5881 if (win->type == GTK_TEXT_WINDOW_TEXT)
5884 cursor = gdk_cursor_new (GDK_XTERM);
5885 gdk_window_set_cursor (win->bin_window, cursor);
5886 gdk_cursor_destroy (cursor);
5888 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
5892 gdk_window_set_background (win->bin_window,
5893 &win->widget->style->base[GTK_WIDGET_STATE (win->widget)]);
5897 gdk_window_set_background (win->bin_window,
5898 &win->widget->style->bg[GTK_WIDGET_STATE (win->widget)]);
5901 g_object_set_qdata (G_OBJECT (win->window),
5902 g_quark_from_static_string ("gtk-text-view-text-window"),
5905 g_object_set_qdata (G_OBJECT (win->bin_window),
5906 g_quark_from_static_string ("gtk-text-view-text-window"),
5911 text_window_unrealize (GtkTextWindow *win)
5913 if (win->type == GTK_TEXT_WINDOW_TEXT)
5915 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
5919 gdk_window_set_user_data (win->window, NULL);
5920 gdk_window_set_user_data (win->bin_window, NULL);
5921 gdk_window_destroy (win->bin_window);
5922 gdk_window_destroy (win->window);
5924 win->bin_window = NULL;
5928 text_window_size_allocate (GtkTextWindow *win,
5931 win->allocation = *rect;
5935 gdk_window_move_resize (win->window,
5937 rect->width, rect->height);
5939 gdk_window_resize (win->bin_window,
5940 rect->width, rect->height);
5945 text_window_scroll (GtkTextWindow *win,
5949 if (dx != 0 || dy != 0)
5951 gdk_window_scroll (win->bin_window, dx, dy);
5956 text_window_invalidate_rect (GtkTextWindow *win,
5959 GdkRectangle window_rect;
5961 gtk_text_view_buffer_to_window_coords (GTK_TEXT_VIEW (win->widget),
5968 window_rect.width = rect->width;
5969 window_rect.height = rect->height;
5971 /* Adjust the rect as appropriate */
5975 case GTK_TEXT_WINDOW_TEXT:
5978 case GTK_TEXT_WINDOW_LEFT:
5979 case GTK_TEXT_WINDOW_RIGHT:
5981 window_rect.width = win->allocation.width;
5984 case GTK_TEXT_WINDOW_TOP:
5985 case GTK_TEXT_WINDOW_BOTTOM:
5987 window_rect.height = win->allocation.height;
5991 g_warning ("%s: bug!", G_STRLOC);
5996 gdk_window_invalidate_rect (win->bin_window, &window_rect, FALSE);
6000 GdkColor color = { 0, 65535, 0, 0 };
6001 GdkGC *gc = gdk_gc_new (win->bin_window);
6002 gdk_gc_set_rgb_fg_color (gc, &color);
6003 gdk_draw_rectangle (win->bin_window,
6004 gc, TRUE, window_rect.x, window_rect.y,
6005 window_rect.width, window_rect.height);
6012 text_window_get_width (GtkTextWindow *win)
6014 return win->allocation.width;
6018 text_window_get_height (GtkTextWindow *win)
6020 return win->allocation.height;
6024 text_window_get_allocation (GtkTextWindow *win,
6027 *rect = win->allocation;
6034 * gtk_text_view_get_window:
6035 * @text_view: a #GtkTextView
6036 * @win: window to get
6038 * Retrieves the #GdkWindow corresponding to an area of the text view;
6039 * possible windows include the overall widget window, child windows
6040 * on the left, right, top, bottom, and the window that displays the
6041 * text buffer. Windows are %NULL and nonexistent if their width or
6042 * height is 0, and are nonexistent before the widget has been
6045 * Return value: a #GdkWindow, or %NULL
6048 gtk_text_view_get_window (GtkTextView *text_view,
6049 GtkTextWindowType win)
6051 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
6055 case GTK_TEXT_WINDOW_WIDGET:
6056 return GTK_WIDGET (text_view)->window;
6059 case GTK_TEXT_WINDOW_TEXT:
6060 return text_view->text_window->bin_window;
6063 case GTK_TEXT_WINDOW_LEFT:
6064 if (text_view->left_window)
6065 return text_view->left_window->bin_window;
6070 case GTK_TEXT_WINDOW_RIGHT:
6071 if (text_view->right_window)
6072 return text_view->right_window->bin_window;
6077 case GTK_TEXT_WINDOW_TOP:
6078 if (text_view->top_window)
6079 return text_view->top_window->bin_window;
6084 case GTK_TEXT_WINDOW_BOTTOM:
6085 if (text_view->bottom_window)
6086 return text_view->bottom_window->bin_window;
6092 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
6099 * gtk_text_view_get_window_type:
6100 * @text_view: a #GtkTextView
6101 * @window: a window type
6103 * Usually used to find out which window an event corresponds to.
6104 * If you connect to an event signal on @text_view, this function
6105 * should be called on <literal>event->window</literal> to
6106 * see which window it was.
6108 * Return value: the window type.
6111 gtk_text_view_get_window_type (GtkTextView *text_view,
6116 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
6117 g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
6119 if (window == GTK_WIDGET (text_view)->window)
6120 return GTK_TEXT_WINDOW_WIDGET;
6122 win = g_object_get_qdata (G_OBJECT (window),
6123 g_quark_try_string ("gtk-text-view-text-window"));
6129 return GTK_TEXT_WINDOW_PRIVATE;
6134 buffer_to_widget (GtkTextView *text_view,
6140 gint focus_edge_width;
6141 gboolean interior_focus;
6143 gtk_widget_style_get (GTK_WIDGET (text_view), "interior_focus", &interior_focus, NULL);
6146 focus_edge_width = 0;
6148 focus_edge_width = 1;
6152 *window_x = buffer_x - text_view->xoffset + focus_edge_width;
6153 if (text_view->left_window)
6154 *window_x += text_view->left_window->allocation.width;
6159 *window_y = buffer_y - text_view->yoffset + focus_edge_width;
6160 if (text_view->top_window)
6161 *window_y += text_view->top_window->allocation.height;
6166 widget_to_text_window (GtkTextWindow *win,
6173 *window_x = widget_x - win->allocation.x;
6176 *window_y = widget_y - win->allocation.y;
6180 buffer_to_text_window (GtkTextView *text_view,
6189 g_warning ("Attempt to convert text buffer coordinates to coordinates "
6190 "for a nonexistent or private child window of GtkTextView");
6194 buffer_to_widget (text_view,
6196 window_x, window_y);
6198 widget_to_text_window (win,
6199 window_x ? *window_x : 0,
6200 window_y ? *window_y : 0,
6206 * gtk_text_view_buffer_to_window_coords:
6207 * @text_view: a #GtkTextView
6208 * @win: a #GtkTextWindowType
6209 * @buffer_x: buffer x coordinate
6210 * @buffer_y: buffer y coordinate
6211 * @window_x: window x coordinate return location
6212 * @window_y: window y coordinate return location
6214 * Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window
6215 * @win, and stores the result in (@window_x, @window_y).
6218 gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
6219 GtkTextWindowType win,
6225 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6229 case GTK_TEXT_WINDOW_WIDGET:
6230 buffer_to_widget (text_view,
6232 window_x, window_y);
6235 case GTK_TEXT_WINDOW_TEXT:
6237 *window_x = buffer_x - text_view->xoffset;
6239 *window_y = buffer_y - text_view->yoffset;
6242 case GTK_TEXT_WINDOW_LEFT:
6243 buffer_to_text_window (text_view,
6244 text_view->left_window,
6246 window_x, window_y);
6249 case GTK_TEXT_WINDOW_RIGHT:
6250 buffer_to_text_window (text_view,
6251 text_view->right_window,
6253 window_x, window_y);
6256 case GTK_TEXT_WINDOW_TOP:
6257 buffer_to_text_window (text_view,
6258 text_view->top_window,
6260 window_x, window_y);
6263 case GTK_TEXT_WINDOW_BOTTOM:
6264 buffer_to_text_window (text_view,
6265 text_view->bottom_window,
6267 window_x, window_y);
6270 case GTK_TEXT_WINDOW_PRIVATE:
6271 g_warning ("%s: can't get coords for private windows", G_STRLOC);
6275 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
6281 widget_to_buffer (GtkTextView *text_view,
6287 gint focus_edge_width;
6288 gboolean interior_focus;
6290 gtk_widget_style_get (GTK_WIDGET (text_view), "interior_focus", &interior_focus, NULL);
6293 focus_edge_width = 0;
6295 focus_edge_width = 1;
6299 *buffer_x = widget_x - focus_edge_width + text_view->xoffset;
6300 if (text_view->left_window)
6301 *buffer_x -= text_view->left_window->allocation.width;
6306 *buffer_y = widget_y - focus_edge_width + text_view->yoffset;
6307 if (text_view->top_window)
6308 *buffer_y -= text_view->top_window->allocation.height;
6313 text_window_to_widget (GtkTextWindow *win,
6320 *widget_x = window_x + win->allocation.x;
6323 *widget_y = window_y + win->allocation.y;
6327 text_window_to_buffer (GtkTextView *text_view,
6336 g_warning ("Attempt to convert GtkTextView buffer coordinates into "
6337 "coordinates for a nonexistent child window.");
6341 text_window_to_widget (win,
6347 widget_to_buffer (text_view,
6348 buffer_x ? *buffer_x : 0,
6349 buffer_y ? *buffer_y : 0,
6355 * gtk_text_view_window_to_buffer_coords:
6356 * @text_view: a #GtkTextView
6357 * @win: a #GtkTextWindowType
6358 * @window_x: window x coordinate
6359 * @window_y: window y coordinate
6360 * @buffer_x: buffer x coordinate return location
6361 * @buffer_y: buffer y coordinate return location
6363 * Converts coordinates on the window identified by @win to buffer
6364 * coordinates, storing the result in (@buffer_x,@buffer_y).
6367 gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
6368 GtkTextWindowType win,
6374 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6378 case GTK_TEXT_WINDOW_WIDGET:
6379 widget_to_buffer (text_view,
6381 buffer_x, buffer_y);
6384 case GTK_TEXT_WINDOW_TEXT:
6386 *buffer_x = window_x + text_view->xoffset;
6388 *buffer_y = window_y + text_view->yoffset;
6391 case GTK_TEXT_WINDOW_LEFT:
6392 text_window_to_buffer (text_view,
6393 text_view->left_window,
6395 buffer_x, buffer_y);
6398 case GTK_TEXT_WINDOW_RIGHT:
6399 text_window_to_buffer (text_view,
6400 text_view->right_window,
6402 buffer_x, buffer_y);
6405 case GTK_TEXT_WINDOW_TOP:
6406 text_window_to_buffer (text_view,
6407 text_view->top_window,
6409 buffer_x, buffer_y);
6412 case GTK_TEXT_WINDOW_BOTTOM:
6413 text_window_to_buffer (text_view,
6414 text_view->bottom_window,
6416 buffer_x, buffer_y);
6419 case GTK_TEXT_WINDOW_PRIVATE:
6420 g_warning ("%s: can't get coords for private windows", G_STRLOC);
6424 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
6430 set_window_width (GtkTextView *text_view,
6432 GtkTextWindowType type,
6433 GtkTextWindow **winp)
6439 text_window_free (*winp);
6441 gtk_widget_queue_resize (GTK_WIDGET (text_view));
6448 *winp = text_window_new (type,
6449 GTK_WIDGET (text_view),
6451 /* if the widget is already realized we need to realize the child manually */
6452 if (GTK_WIDGET_REALIZED (text_view))
6453 text_window_realize (*winp, GTK_WIDGET (text_view)->window);
6457 if ((*winp)->requisition.width == width)
6461 gtk_widget_queue_resize (GTK_WIDGET (text_view));
6467 set_window_height (GtkTextView *text_view,
6469 GtkTextWindowType type,
6470 GtkTextWindow **winp)
6476 text_window_free (*winp);
6478 gtk_widget_queue_resize (GTK_WIDGET (text_view));
6485 *winp = text_window_new (type,
6486 GTK_WIDGET (text_view),
6489 /* if the widget is already realized we need to realize the child manually */
6490 if (GTK_WIDGET_REALIZED (text_view))
6491 text_window_realize (*winp, GTK_WIDGET (text_view)->window);
6495 if ((*winp)->requisition.height == height)
6499 gtk_widget_queue_resize (GTK_WIDGET (text_view));
6504 * gtk_text_view_set_border_window_size:
6505 * @text_view: a #GtkTextView
6506 * @type: window to affect
6507 * @size: width or height of the window
6509 * Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT,
6510 * or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM.
6511 * Automatically destroys the corresponding window if the size is set
6512 * to 0, and creates the window if the size is set to non-zero. This
6513 * function can only be used for the "border windows," it doesn't work
6514 * with #GTK_TEXT_WINDOW_WIDGET, #GTK_TEXT_WINDOW_TEXT, or
6515 * #GTK_TEXT_WINDOW_PRIVATE.
6518 gtk_text_view_set_border_window_size (GtkTextView *text_view,
6519 GtkTextWindowType type,
6523 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6524 g_return_if_fail (size >= 0);
6528 case GTK_TEXT_WINDOW_LEFT:
6529 set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT,
6530 &text_view->left_window);
6533 case GTK_TEXT_WINDOW_RIGHT:
6534 set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT,
6535 &text_view->right_window);
6538 case GTK_TEXT_WINDOW_TOP:
6539 set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP,
6540 &text_view->top_window);
6543 case GTK_TEXT_WINDOW_BOTTOM:
6544 set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM,
6545 &text_view->bottom_window);
6549 g_warning ("Can only set size of left/right/top/bottom border windows with gtk_text_view_set_border_window_size()");
6555 * gtk_text_view_get_border_window_size:
6556 * @text_view: a #GtkTextView
6557 * @type: window to return size from
6559 * Gets the width of the specified border window. See
6560 * gtk_text_view_set_border_window_size().
6562 * Return value: width of window
6565 gtk_text_view_get_border_window_size (GtkTextView *text_view,
6566 GtkTextWindowType type)
6568 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
6572 case GTK_TEXT_WINDOW_LEFT:
6573 if (text_view->left_window)
6574 return text_view->left_window->requisition.width;
6576 case GTK_TEXT_WINDOW_RIGHT:
6577 if (text_view->right_window)
6578 return text_view->right_window->requisition.width;
6580 case GTK_TEXT_WINDOW_TOP:
6581 if (text_view->top_window)
6582 return text_view->top_window->requisition.height;
6584 case GTK_TEXT_WINDOW_BOTTOM:
6585 if (text_view->bottom_window)
6586 return text_view->bottom_window->requisition.height;
6589 g_warning ("Can only get size of left/right/top/bottom border windows with gtk_text_view_get_border_window_size()");
6600 static GtkTextViewChild*
6601 text_view_child_new_anchored (GtkWidget *child,
6602 GtkTextChildAnchor *anchor,
6603 GtkTextLayout *layout)
6605 GtkTextViewChild *vc;
6607 vc = g_new (GtkTextViewChild, 1);
6610 vc->anchor = anchor;
6612 vc->from_top_of_line = 0;
6613 vc->from_left_of_buffer = 0;
6615 g_object_ref (G_OBJECT (vc->widget));
6616 g_object_ref (G_OBJECT (vc->anchor));
6618 g_object_set_data (G_OBJECT (child),
6619 "gtk-text-view-child",
6622 gtk_text_child_anchor_register_child (anchor, child, layout);
6627 static GtkTextViewChild*
6628 text_view_child_new_window (GtkWidget *child,
6629 GtkTextWindowType type,
6633 GtkTextViewChild *vc;
6635 vc = g_new (GtkTextViewChild, 1);
6640 vc->from_top_of_line = 0;
6641 vc->from_left_of_buffer = 0;
6643 g_object_ref (G_OBJECT (vc->widget));
6649 g_object_set_data (G_OBJECT (child),
6650 "gtk-text-view-child",
6657 text_view_child_free (GtkTextViewChild *child)
6659 g_object_set_data (G_OBJECT (child->widget),
6660 "gtk-text-view-child", NULL);
6664 gtk_text_child_anchor_unregister_child (child->anchor,
6666 g_object_unref (G_OBJECT (child->anchor));
6669 g_object_unref (G_OBJECT (child->widget));
6675 text_view_child_set_parent_window (GtkTextView *text_view,
6676 GtkTextViewChild *vc)
6679 gtk_widget_set_parent_window (vc->widget,
6680 text_view->text_window->bin_window);
6684 window = gtk_text_view_get_window (text_view,
6686 gtk_widget_set_parent_window (vc->widget, window);
6691 add_child (GtkTextView *text_view,
6692 GtkTextViewChild *vc)
6694 text_view->children = g_slist_prepend (text_view->children,
6697 if (GTK_WIDGET_REALIZED (text_view))
6698 text_view_child_set_parent_window (text_view, vc);
6700 gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view));
6704 gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
6706 GtkTextChildAnchor *anchor)
6708 GtkTextViewChild *vc;
6710 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6711 g_return_if_fail (GTK_IS_WIDGET (child));
6712 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
6713 g_return_if_fail (child->parent == NULL);
6715 gtk_text_view_ensure_layout (text_view);
6717 vc = text_view_child_new_anchored (child, anchor,
6720 add_child (text_view, vc);
6722 g_assert (vc->widget == child);
6723 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
6727 * gtk_text_view_add_child_in_window:
6728 * @text_view: a #GtkTextView
6729 * @child: a #GtkWidget
6730 * @which_window: which window the child should appear in
6731 * @xpos: X position of child in window coordinates
6732 * @ypos: Y position of child in window coordinates
6734 * Adds a child at fixed coordinates in one of the text widget's
6735 * windows. The window must have nonzero size (see
6736 * gtk_text_view_set_border_window_size()). Note that the child
6737 * coordinates are given relative to the #GdkWindow in question, and
6738 * that these coordinates have no sane relationship to scrolling. When
6739 * placing a child in #GTK_TEXT_WINDOW_WIDGET, scrolling is
6740 * irrelevant, the child floats above all scrollable areas. But when
6741 * placing a child in one of the scrollable windows (border windows or
6742 * text window), you'll need to compute the child's correct position
6743 * in buffer coordinates any time scrolling occurs or buffer changes
6744 * occur, and then call gtk_text_view_move_child() to update the
6745 * child's position. Unfortunately there's no good way to detect that
6746 * scrolling has occurred, using the current API; a possible hack
6747 * would be to update all child positions when the scroll adjustments
6748 * change or the text buffer changes. See bug 64518 on
6749 * bugzilla.gnome.org for status of fixing this issue.
6753 gtk_text_view_add_child_in_window (GtkTextView *text_view,
6755 GtkTextWindowType which_window,
6759 GtkTextViewChild *vc;
6761 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6762 g_return_if_fail (GTK_IS_WIDGET (child));
6763 g_return_if_fail (child->parent == NULL);
6765 vc = text_view_child_new_window (child, which_window,
6768 add_child (text_view, vc);
6770 g_assert (vc->widget == child);
6771 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
6775 * gtk_text_view_move_child:
6776 * @text_view: a #GtkTextView
6777 * @child: child widget already added to the text view
6778 * @xpos: new X position in window coordinates
6779 * @ypos: new Y position in window coordinates
6781 * Updates the position of a child, as for gtk_text_view_add_child_in_window().
6785 gtk_text_view_move_child (GtkTextView *text_view,
6790 GtkTextViewChild *vc;
6792 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6793 g_return_if_fail (GTK_IS_WIDGET (child));
6794 g_return_if_fail (child->parent == (GtkWidget*) text_view);
6796 vc = g_object_get_data (G_OBJECT (child),
6797 "gtk-text-view-child");
6799 g_assert (vc != NULL);
6801 if (vc->x == xpos &&
6808 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (text_view))
6809 gtk_widget_queue_resize (child);
6813 /* Iterator operations */
6816 gtk_text_view_forward_display_line (GtkTextView *text_view,
6819 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6820 g_return_val_if_fail (iter != NULL, FALSE);
6822 gtk_text_view_ensure_layout (text_view);
6824 return gtk_text_layout_move_iter_to_next_line (text_view->layout, iter);
6828 gtk_text_view_backward_display_line (GtkTextView *text_view,
6831 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6832 g_return_val_if_fail (iter != NULL, FALSE);
6834 gtk_text_view_ensure_layout (text_view);
6836 return gtk_text_layout_move_iter_to_previous_line (text_view->layout, iter);
6840 gtk_text_view_forward_display_line_end (GtkTextView *text_view,
6843 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6844 g_return_val_if_fail (iter != NULL, FALSE);
6846 gtk_text_view_ensure_layout (text_view);
6848 return gtk_text_layout_move_iter_to_line_end (text_view->layout, iter, 1);
6852 gtk_text_view_backward_display_line_start (GtkTextView *text_view,
6855 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6856 g_return_val_if_fail (iter != NULL, FALSE);
6858 gtk_text_view_ensure_layout (text_view);
6860 return gtk_text_layout_move_iter_to_line_end (text_view->layout, iter, -1);
6864 gtk_text_view_starts_display_line (GtkTextView *text_view,
6865 const GtkTextIter *iter)
6867 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6868 g_return_val_if_fail (iter != NULL, FALSE);
6870 gtk_text_view_ensure_layout (text_view);
6872 return gtk_text_layout_iter_starts_line (text_view->layout, iter);
6876 gtk_text_view_move_visually (GtkTextView *text_view,
6880 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6881 g_return_val_if_fail (iter != NULL, FALSE);
6883 gtk_text_view_ensure_layout (text_view);
6885 return gtk_text_layout_move_iter_visually (text_view->layout, iter, count);