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"
35 #include "gtkmarshalers.h"
37 #include "gtkmenuitem.h"
38 #include "gtkseparatormenuitem.h"
39 #include "gtksettings.h"
40 #include "gtksignal.h"
42 #include "gtktextdisplay.h"
43 #include "gtktextview.h"
44 #include "gtkimmulticontext.h"
45 #include "gdk/gdkkeysyms.h"
46 #include "gtksizegroup.h" /* FIXME http://bugzilla.gnome.org/show_bug.cgi?id=72258 */
47 #include "gtktextutil.h"
48 #include "gtkwindow.h"
51 /* How scrolling, validation, exposes, etc. work.
53 * The expose_event handler has the invariant that the onscreen lines
54 * have been validated.
56 * There are two ways that onscreen lines can become invalid. The first
57 * is to change which lines are onscreen. This happens when the value
58 * of a scroll adjustment changes. So the code path begins in
59 * gtk_text_view_value_changed() and goes like this:
60 * - gdk_window_scroll() to reflect the new adjustment value
61 * - validate the lines that were moved onscreen
62 * - gdk_window_process_updates() to handle the exposes immediately
64 * The second way is that you get the "invalidated" signal from the layout,
65 * indicating that lines have become invalid. This code path begins in
66 * invalidated_handler() and goes like this:
67 * - install high-priority idle which does the rest of the steps
68 * - if a scroll is pending from scroll_to_mark(), do the scroll,
69 * jumping to the gtk_text_view_value_changed() code path
70 * - otherwise, validate the onscreen lines
71 * - DO NOT process updates
73 * In both cases, validating the onscreen lines can trigger a scroll
74 * due to maintaining the first_para on the top of the screen.
75 * If validation triggers a scroll, we jump to the top of the code path
76 * for value_changed, and bail out of the current code path.
78 * Also, in size_allocate, if we invalidate some lines from changing
79 * the layout width, we need to go ahead and run the high-priority idle,
80 * because GTK sends exposes right after doing the size allocates without
81 * returning to the main loop. This is also why the high-priority idle
82 * is at a higher priority than resizing.
87 #define DEBUG_VALIDATION_AND_SCROLLING
90 #ifdef DEBUG_VALIDATION_AND_SCROLLING
96 #define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->text_window)
97 #define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->text_window)
99 struct _GtkTextPendingScroll
102 gdouble within_margin;
110 SET_SCROLL_ADJUSTMENTS,
128 PROP_PIXELS_ABOVE_LINES,
129 PROP_PIXELS_BELOW_LINES,
130 PROP_PIXELS_INSIDE_WRAP,
142 static void gtk_text_view_init (GtkTextView *text_view);
143 static void gtk_text_view_class_init (GtkTextViewClass *klass);
144 static void gtk_text_view_destroy (GtkObject *object);
145 static void gtk_text_view_finalize (GObject *object);
146 static void gtk_text_view_set_property (GObject *object,
150 static void gtk_text_view_get_property (GObject *object,
154 static void gtk_text_view_size_request (GtkWidget *widget,
155 GtkRequisition *requisition);
156 static void gtk_text_view_size_allocate (GtkWidget *widget,
157 GtkAllocation *allocation);
158 static void gtk_text_view_realize (GtkWidget *widget);
159 static void gtk_text_view_unrealize (GtkWidget *widget);
160 static void gtk_text_view_style_set (GtkWidget *widget,
161 GtkStyle *previous_style);
162 static void gtk_text_view_direction_changed (GtkWidget *widget,
163 GtkTextDirection previous_direction);
164 static gint gtk_text_view_event (GtkWidget *widget,
166 static gint gtk_text_view_key_press_event (GtkWidget *widget,
168 static gint gtk_text_view_key_release_event (GtkWidget *widget,
170 static gint gtk_text_view_button_press_event (GtkWidget *widget,
171 GdkEventButton *event);
172 static gint gtk_text_view_button_release_event (GtkWidget *widget,
173 GdkEventButton *event);
174 static gint gtk_text_view_focus_in_event (GtkWidget *widget,
175 GdkEventFocus *event);
176 static gint gtk_text_view_focus_out_event (GtkWidget *widget,
177 GdkEventFocus *event);
178 static gint gtk_text_view_motion_event (GtkWidget *widget,
179 GdkEventMotion *event);
180 static gint gtk_text_view_expose_event (GtkWidget *widget,
181 GdkEventExpose *expose);
182 static void gtk_text_view_draw_focus (GtkWidget *widget);
183 static void gtk_text_view_grab_focus (GtkWidget *widget);
184 static gboolean gtk_text_view_focus (GtkWidget *widget,
185 GtkDirectionType direction);
188 /* Source side drag signals */
189 static void gtk_text_view_drag_begin (GtkWidget *widget,
190 GdkDragContext *context);
191 static void gtk_text_view_drag_end (GtkWidget *widget,
192 GdkDragContext *context);
193 static void gtk_text_view_drag_data_get (GtkWidget *widget,
194 GdkDragContext *context,
195 GtkSelectionData *selection_data,
198 static void gtk_text_view_drag_data_delete (GtkWidget *widget,
199 GdkDragContext *context);
201 /* Target side drag signals */
202 static void gtk_text_view_drag_leave (GtkWidget *widget,
203 GdkDragContext *context,
205 static gboolean gtk_text_view_drag_motion (GtkWidget *widget,
206 GdkDragContext *context,
210 static gboolean gtk_text_view_drag_drop (GtkWidget *widget,
211 GdkDragContext *context,
215 static void gtk_text_view_drag_data_received (GtkWidget *widget,
216 GdkDragContext *context,
219 GtkSelectionData *selection_data,
223 static void gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
225 GtkAdjustment *vadj);
226 static gboolean gtk_text_view_popup_menu (GtkWidget *widget);
228 static void gtk_text_view_move_cursor (GtkTextView *text_view,
229 GtkMovementStep step,
231 gboolean extend_selection);
232 static void gtk_text_view_page_horizontally (GtkTextView *text_view,
234 gboolean extend_selection);
235 static void gtk_text_view_set_anchor (GtkTextView *text_view);
236 static void gtk_text_view_scroll_pages (GtkTextView *text_view,
238 static void gtk_text_view_scroll_hpages (GtkTextView *text_view,
240 static void gtk_text_view_insert_at_cursor (GtkTextView *text_view,
242 static void gtk_text_view_delete_from_cursor (GtkTextView *text_view,
245 static void gtk_text_view_cut_clipboard (GtkTextView *text_view);
246 static void gtk_text_view_copy_clipboard (GtkTextView *text_view);
247 static void gtk_text_view_paste_clipboard (GtkTextView *text_view);
248 static void gtk_text_view_toggle_overwrite (GtkTextView *text_view);
249 static void gtk_text_view_move_focus (GtkTextView *text_view,
250 GtkDirectionType direction_type);
251 static void gtk_text_view_unselect (GtkTextView *text_view);
253 static void gtk_text_view_validate_onscreen (GtkTextView *text_view);
254 static void gtk_text_view_get_first_para_iter (GtkTextView *text_view,
256 static void gtk_text_view_update_layout_width (GtkTextView *text_view);
257 static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
258 GtkTextAttributes *values,
260 static void gtk_text_view_ensure_layout (GtkTextView *text_view);
261 static void gtk_text_view_destroy_layout (GtkTextView *text_view);
262 static void gtk_text_view_check_keymap_direction (GtkTextView *text_view);
263 static void gtk_text_view_reset_im_context (GtkTextView *text_view);
264 static void gtk_text_view_start_selection_drag (GtkTextView *text_view,
265 const GtkTextIter *iter,
266 GdkEventButton *event);
267 static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view,
268 GdkEventButton *event);
269 static void gtk_text_view_start_selection_dnd (GtkTextView *text_view,
270 const GtkTextIter *iter,
271 GdkEventMotion *event);
272 static void gtk_text_view_check_cursor_blink (GtkTextView *text_view);
273 static void gtk_text_view_pend_cursor_blink (GtkTextView *text_view);
274 static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view);
276 static void gtk_text_view_value_changed (GtkAdjustment *adj,
278 static void gtk_text_view_commit_handler (GtkIMContext *context,
280 GtkTextView *text_view);
281 static void gtk_text_view_commit_text (GtkTextView *text_view,
283 static void gtk_text_view_preedit_changed_handler (GtkIMContext *context,
284 GtkTextView *text_view);
285 static gboolean gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
286 GtkTextView *text_view);
287 static gboolean gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
290 GtkTextView *text_view);
292 static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
293 const GtkTextIter *location,
296 static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
299 static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
303 static GtkAdjustment* get_hadjustment (GtkTextView *text_view);
304 static GtkAdjustment* get_vadjustment (GtkTextView *text_view);
306 static void gtk_text_view_do_popup (GtkTextView *text_view,
307 GdkEventButton *event);
309 static void gtk_text_view_queue_scroll (GtkTextView *text_view,
311 gdouble within_margin,
316 static gboolean gtk_text_view_flush_scroll (GtkTextView *text_view);
317 static void gtk_text_view_update_adjustments (GtkTextView *text_view);
318 static void gtk_text_view_invalidate (GtkTextView *text_view);
319 static void gtk_text_view_flush_first_validate (GtkTextView *text_view);
321 static void gtk_text_view_update_im_spot_location (GtkTextView *text_view);
323 /* Container methods */
324 static void gtk_text_view_add (GtkContainer *container,
326 static void gtk_text_view_remove (GtkContainer *container,
328 static void gtk_text_view_forall (GtkContainer *container,
329 gboolean include_internals,
330 GtkCallback callback,
331 gpointer callback_data);
333 /* FIXME probably need the focus methods. */
335 typedef struct _GtkTextViewChild GtkTextViewChild;
337 struct _GtkTextViewChild
341 GtkTextChildAnchor *anchor;
343 gint from_top_of_line;
344 gint from_left_of_buffer;
346 /* These are ignored if anchor != NULL */
347 GtkTextWindowType type;
352 static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child,
353 GtkTextChildAnchor *anchor,
354 GtkTextLayout *layout);
355 static GtkTextViewChild* text_view_child_new_window (GtkWidget *child,
356 GtkTextWindowType type,
359 static void text_view_child_free (GtkTextViewChild *child);
360 static void text_view_child_set_parent_window (GtkTextView *text_view,
361 GtkTextViewChild *child);
363 struct _GtkTextWindow
365 GtkTextWindowType type;
368 GdkWindow *bin_window;
369 GtkRequisition requisition;
370 GdkRectangle allocation;
373 static GtkTextWindow *text_window_new (GtkTextWindowType type,
376 gint height_request);
377 static void text_window_free (GtkTextWindow *win);
378 static void text_window_realize (GtkTextWindow *win,
380 static void text_window_unrealize (GtkTextWindow *win);
381 static void text_window_size_allocate (GtkTextWindow *win,
383 static void text_window_scroll (GtkTextWindow *win,
386 static void text_window_invalidate_rect (GtkTextWindow *win,
389 static gint text_window_get_width (GtkTextWindow *win);
390 static gint text_window_get_height (GtkTextWindow *win);
391 static void text_window_get_allocation (GtkTextWindow *win,
399 TARGET_COMPOUND_TEXT,
401 TARGET_TEXT_BUFFER_CONTENTS
404 static GtkTargetEntry target_table[] = {
405 { "GTK_TEXT_BUFFER_CONTENTS", GTK_TARGET_SAME_APP,
406 TARGET_TEXT_BUFFER_CONTENTS },
407 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
408 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
409 { "TEXT", 0, TARGET_TEXT },
410 { "STRING", 0, TARGET_STRING }
413 static GtkContainerClass *parent_class = NULL;
414 static guint signals[LAST_SIGNAL] = { 0 };
417 gtk_text_view_get_type (void)
419 static GtkType our_type = 0;
423 static const GtkTypeInfo our_info =
426 sizeof (GtkTextView),
427 sizeof (GtkTextViewClass),
428 (GtkClassInitFunc) gtk_text_view_class_init,
429 (GtkObjectInitFunc) gtk_text_view_init,
430 /* reserved_1 */ NULL,
431 /* reserved_2 */ NULL,
432 (GtkClassInitFunc) NULL
435 our_type = gtk_type_unique (GTK_TYPE_CONTAINER, &our_info);
442 add_move_binding (GtkBindingSet *binding_set,
445 GtkMovementStep step,
448 g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
450 gtk_binding_entry_add_signal (binding_set, keyval, modmask,
454 GTK_TYPE_BOOL, FALSE);
456 /* Selection-extending version */
457 gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
461 GTK_TYPE_BOOL, TRUE);
465 gtk_text_view_class_init (GtkTextViewClass *klass)
467 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
468 GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
469 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
470 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
471 GtkBindingSet *binding_set;
473 parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
475 /* Default handlers and virtual methods
477 gobject_class->set_property = gtk_text_view_set_property;
478 gobject_class->get_property = gtk_text_view_get_property;
480 object_class->destroy = gtk_text_view_destroy;
481 gobject_class->finalize = gtk_text_view_finalize;
483 widget_class->realize = gtk_text_view_realize;
484 widget_class->unrealize = gtk_text_view_unrealize;
485 widget_class->style_set = gtk_text_view_style_set;
486 widget_class->direction_changed = gtk_text_view_direction_changed;
487 widget_class->size_request = gtk_text_view_size_request;
488 widget_class->size_allocate = gtk_text_view_size_allocate;
489 widget_class->event = gtk_text_view_event;
490 widget_class->key_press_event = gtk_text_view_key_press_event;
491 widget_class->key_release_event = gtk_text_view_key_release_event;
492 widget_class->button_press_event = gtk_text_view_button_press_event;
493 widget_class->button_release_event = gtk_text_view_button_release_event;
494 widget_class->focus_in_event = gtk_text_view_focus_in_event;
495 widget_class->focus_out_event = gtk_text_view_focus_out_event;
496 widget_class->motion_notify_event = gtk_text_view_motion_event;
497 widget_class->expose_event = gtk_text_view_expose_event;
498 widget_class->grab_focus = gtk_text_view_grab_focus;
499 widget_class->focus = gtk_text_view_focus;
501 widget_class->drag_begin = gtk_text_view_drag_begin;
502 widget_class->drag_end = gtk_text_view_drag_end;
503 widget_class->drag_data_get = gtk_text_view_drag_data_get;
504 widget_class->drag_data_delete = gtk_text_view_drag_data_delete;
506 widget_class->drag_leave = gtk_text_view_drag_leave;
507 widget_class->drag_motion = gtk_text_view_drag_motion;
508 widget_class->drag_drop = gtk_text_view_drag_drop;
509 widget_class->drag_data_received = gtk_text_view_drag_data_received;
511 widget_class->popup_menu = gtk_text_view_popup_menu;
513 container_class->add = gtk_text_view_add;
514 container_class->remove = gtk_text_view_remove;
515 container_class->forall = gtk_text_view_forall;
517 klass->move_cursor = gtk_text_view_move_cursor;
518 klass->page_horizontally = gtk_text_view_page_horizontally;
519 klass->set_anchor = gtk_text_view_set_anchor;
520 klass->insert_at_cursor = gtk_text_view_insert_at_cursor;
521 klass->delete_from_cursor = gtk_text_view_delete_from_cursor;
522 klass->cut_clipboard = gtk_text_view_cut_clipboard;
523 klass->copy_clipboard = gtk_text_view_copy_clipboard;
524 klass->paste_clipboard = gtk_text_view_paste_clipboard;
525 klass->toggle_overwrite = gtk_text_view_toggle_overwrite;
526 klass->move_focus = gtk_text_view_move_focus;
527 klass->set_scroll_adjustments = gtk_text_view_set_scroll_adjustments;
533 g_object_class_install_property (gobject_class,
534 PROP_PIXELS_ABOVE_LINES,
535 g_param_spec_int ("pixels_above_lines",
536 _("Pixels Above Lines"),
537 _("Pixels of blank space above paragraphs"),
543 g_object_class_install_property (gobject_class,
544 PROP_PIXELS_BELOW_LINES,
545 g_param_spec_int ("pixels_below_lines",
546 _("Pixels Below Lines"),
547 _("Pixels of blank space below paragraphs"),
553 g_object_class_install_property (gobject_class,
554 PROP_PIXELS_INSIDE_WRAP,
555 g_param_spec_int ("pixels_inside_wrap",
556 _("Pixels Inside Wrap"),
557 _("Pixels of blank space between wrapped lines in a paragraph"),
563 g_object_class_install_property (gobject_class,
565 g_param_spec_boolean ("editable",
567 _("Whether the text can be modified by the user"),
571 g_object_class_install_property (gobject_class,
573 g_param_spec_enum ("wrap_mode",
575 _("Whether to wrap lines never, at word boundaries, or at character boundaries"),
580 g_object_class_install_property (gobject_class,
582 g_param_spec_enum ("justification",
584 _("Left, right, or center justification"),
585 GTK_TYPE_JUSTIFICATION,
589 g_object_class_install_property (gobject_class,
591 g_param_spec_int ("left_margin",
593 _("Width of the left margin in pixels"),
599 g_object_class_install_property (gobject_class,
601 g_param_spec_int ("right_margin",
603 _("Width of the right margin in pixels"),
609 g_object_class_install_property (gobject_class,
611 g_param_spec_int ("indent",
613 _("Amount to indent the paragraph, in pixels"),
619 g_object_class_install_property (gobject_class,
621 g_param_spec_boxed ("tabs",
623 _("Custom tabs for this text"),
624 PANGO_TYPE_TAB_ARRAY,
627 g_object_class_install_property (gobject_class,
629 g_param_spec_boolean ("cursor_visible",
631 _("If the insertion cursor is shown"),
640 signals[MOVE_CURSOR] =
641 gtk_signal_new ("move_cursor",
642 GTK_RUN_LAST | GTK_RUN_ACTION,
643 GTK_CLASS_TYPE (object_class),
644 GTK_SIGNAL_OFFSET (GtkTextViewClass, move_cursor),
645 _gtk_marshal_VOID__ENUM_INT_BOOLEAN,
646 GTK_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, GTK_TYPE_INT, GTK_TYPE_BOOL);
648 signals[PAGE_HORIZONTALLY] =
649 gtk_signal_new ("page_horizontally",
650 GTK_RUN_LAST | GTK_RUN_ACTION,
651 GTK_CLASS_TYPE (object_class),
652 GTK_SIGNAL_OFFSET (GtkTextViewClass, page_horizontally),
653 _gtk_marshal_VOID__INT_BOOLEAN,
654 GTK_TYPE_NONE, 2, GTK_TYPE_INT, GTK_TYPE_BOOL);
656 signals[SET_ANCHOR] =
657 gtk_signal_new ("set_anchor",
658 GTK_RUN_LAST | GTK_RUN_ACTION,
659 GTK_CLASS_TYPE (object_class),
660 GTK_SIGNAL_OFFSET (GtkTextViewClass, set_anchor),
661 _gtk_marshal_VOID__VOID,
664 signals[INSERT_AT_CURSOR] =
665 gtk_signal_new ("insert_at_cursor",
666 GTK_RUN_LAST | GTK_RUN_ACTION,
667 GTK_CLASS_TYPE (object_class),
668 GTK_SIGNAL_OFFSET (GtkTextViewClass, insert_at_cursor),
669 _gtk_marshal_VOID__STRING,
670 GTK_TYPE_NONE, 1, GTK_TYPE_STRING);
672 signals[DELETE_FROM_CURSOR] =
673 gtk_signal_new ("delete_from_cursor",
674 GTK_RUN_LAST | GTK_RUN_ACTION,
675 GTK_CLASS_TYPE (object_class),
676 GTK_SIGNAL_OFFSET (GtkTextViewClass, delete_from_cursor),
677 _gtk_marshal_VOID__ENUM_INT,
678 GTK_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, GTK_TYPE_INT);
680 signals[CUT_CLIPBOARD] =
681 gtk_signal_new ("cut_clipboard",
682 GTK_RUN_LAST | GTK_RUN_ACTION,
683 GTK_CLASS_TYPE (object_class),
684 GTK_SIGNAL_OFFSET (GtkTextViewClass, cut_clipboard),
685 _gtk_marshal_VOID__VOID,
688 signals[COPY_CLIPBOARD] =
689 gtk_signal_new ("copy_clipboard",
690 GTK_RUN_LAST | GTK_RUN_ACTION,
691 GTK_CLASS_TYPE (object_class),
692 GTK_SIGNAL_OFFSET (GtkTextViewClass, copy_clipboard),
693 _gtk_marshal_VOID__VOID,
696 signals[PASTE_CLIPBOARD] =
697 gtk_signal_new ("paste_clipboard",
698 GTK_RUN_LAST | GTK_RUN_ACTION,
699 GTK_CLASS_TYPE (object_class),
700 GTK_SIGNAL_OFFSET (GtkTextViewClass, paste_clipboard),
701 _gtk_marshal_VOID__VOID,
704 signals[TOGGLE_OVERWRITE] =
705 gtk_signal_new ("toggle_overwrite",
706 GTK_RUN_LAST | GTK_RUN_ACTION,
707 GTK_CLASS_TYPE (object_class),
708 GTK_SIGNAL_OFFSET (GtkTextViewClass, toggle_overwrite),
709 _gtk_marshal_VOID__VOID,
712 signals[MOVE_FOCUS] =
713 gtk_signal_new ("move_focus",
714 GTK_RUN_LAST | GTK_RUN_ACTION,
715 GTK_CLASS_TYPE (object_class),
716 GTK_SIGNAL_OFFSET (GtkTextViewClass, move_focus),
717 _gtk_marshal_VOID__ENUM,
718 GTK_TYPE_NONE, 1, GTK_TYPE_DIRECTION_TYPE);
720 signals[SET_SCROLL_ADJUSTMENTS] =
721 gtk_signal_new ("set_scroll_adjustments",
723 GTK_CLASS_TYPE (object_class),
724 GTK_SIGNAL_OFFSET (GtkTextViewClass, set_scroll_adjustments),
725 _gtk_marshal_VOID__OBJECT_OBJECT,
726 GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
727 widget_class->set_scroll_adjustments_signal = signals[SET_SCROLL_ADJUSTMENTS];
729 signals[POPULATE_POPUP] =
730 gtk_signal_new ("populate_popup",
732 GTK_CLASS_TYPE (object_class),
733 GTK_SIGNAL_OFFSET (GtkTextViewClass, populate_popup),
734 _gtk_marshal_VOID__OBJECT,
735 GTK_TYPE_NONE, 1, GTK_TYPE_MENU);
741 binding_set = gtk_binding_set_by_class (klass);
743 /* Moving the insertion point */
744 add_move_binding (binding_set, GDK_Right, 0,
745 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
747 add_move_binding (binding_set, GDK_KP_Right, 0,
748 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
750 add_move_binding (binding_set, GDK_Left, 0,
751 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
753 add_move_binding (binding_set, GDK_KP_Left, 0,
754 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
756 add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
757 GTK_MOVEMENT_WORDS, 1);
759 add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
760 GTK_MOVEMENT_WORDS, 1);
762 add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
763 GTK_MOVEMENT_WORDS, -1);
765 add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
766 GTK_MOVEMENT_WORDS, 1);
768 add_move_binding (binding_set, GDK_Up, 0,
769 GTK_MOVEMENT_DISPLAY_LINES, -1);
771 add_move_binding (binding_set, GDK_KP_Up, 0,
772 GTK_MOVEMENT_DISPLAY_LINES, -1);
774 add_move_binding (binding_set, GDK_Down, 0,
775 GTK_MOVEMENT_DISPLAY_LINES, 1);
777 add_move_binding (binding_set, GDK_KP_Down, 0,
778 GTK_MOVEMENT_DISPLAY_LINES, 1);
780 add_move_binding (binding_set, GDK_Up, GDK_CONTROL_MASK,
781 GTK_MOVEMENT_PARAGRAPHS, -1);
783 add_move_binding (binding_set, GDK_KP_Up, GDK_CONTROL_MASK,
784 GTK_MOVEMENT_PARAGRAPHS, -1);
786 add_move_binding (binding_set, GDK_Down, GDK_CONTROL_MASK,
787 GTK_MOVEMENT_PARAGRAPHS, 1);
789 add_move_binding (binding_set, GDK_KP_Down, GDK_CONTROL_MASK,
790 GTK_MOVEMENT_PARAGRAPHS, 1);
792 add_move_binding (binding_set, GDK_Home, 0,
793 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
795 add_move_binding (binding_set, GDK_KP_Home, 0,
796 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
798 add_move_binding (binding_set, GDK_End, 0,
799 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
801 add_move_binding (binding_set, GDK_KP_End, 0,
802 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
804 add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
805 GTK_MOVEMENT_BUFFER_ENDS, -1);
807 add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
808 GTK_MOVEMENT_BUFFER_ENDS, -1);
810 add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
811 GTK_MOVEMENT_BUFFER_ENDS, 1);
813 add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
814 GTK_MOVEMENT_BUFFER_ENDS, 1);
816 add_move_binding (binding_set, GDK_Page_Up, 0,
817 GTK_MOVEMENT_PAGES, -1);
819 add_move_binding (binding_set, GDK_KP_Page_Up, 0,
820 GTK_MOVEMENT_PAGES, -1);
822 add_move_binding (binding_set, GDK_Page_Down, 0,
823 GTK_MOVEMENT_PAGES, 1);
825 add_move_binding (binding_set, GDK_KP_Page_Down, 0,
826 GTK_MOVEMENT_PAGES, 1);
830 gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
832 GTK_TYPE_MOVEMENT_STEP, GTK_MOVEMENT_BUFFER_ENDS,
834 GTK_TYPE_BOOL, FALSE);
835 gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
837 GTK_TYPE_MOVEMENT_STEP, GTK_MOVEMENT_BUFFER_ENDS,
839 GTK_TYPE_BOOL, TRUE);
842 gtk_binding_entry_add_signal (binding_set, GDK_Page_Up, GDK_CONTROL_MASK,
843 "page_horizontally", 2,
845 GTK_TYPE_BOOL, FALSE);
847 gtk_binding_entry_add_signal (binding_set, GDK_Page_Up, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
848 "page_horizontally", 2,
850 GTK_TYPE_BOOL, TRUE);
852 gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Up, GDK_CONTROL_MASK,
853 "page_horizontally", 2,
855 GTK_TYPE_BOOL, FALSE);
857 gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Up, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
858 "page_horizontally", 2,
860 GTK_TYPE_BOOL, TRUE);
862 gtk_binding_entry_add_signal (binding_set, GDK_Page_Down, GDK_CONTROL_MASK,
863 "page_horizontally", 2,
865 GTK_TYPE_BOOL, FALSE);
867 gtk_binding_entry_add_signal (binding_set, GDK_Page_Down, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
868 "page_horizontally", 2,
870 GTK_TYPE_BOOL, TRUE);
872 gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Down, GDK_CONTROL_MASK,
873 "page_horizontally", 2,
875 GTK_TYPE_BOOL, FALSE);
877 gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Down, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
878 "page_horizontally", 2,
880 GTK_TYPE_BOOL, TRUE);
883 gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0,
884 "delete_from_cursor", 2,
885 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
888 gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, 0,
889 "delete_from_cursor", 2,
890 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
893 gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0,
894 "delete_from_cursor", 2,
895 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
898 gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_CONTROL_MASK,
899 "delete_from_cursor", 2,
900 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
903 gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, GDK_CONTROL_MASK,
904 "delete_from_cursor", 2,
905 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
908 gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK,
909 "delete_from_cursor", 2,
910 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
915 gtk_binding_entry_add_signal (binding_set, GDK_x, GDK_CONTROL_MASK,
918 gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
919 "copy_clipboard", 0);
921 gtk_binding_entry_add_signal (binding_set, GDK_v, 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);
930 /* Control-tab focus motion */
931 gtk_binding_entry_add_signal (binding_set, GDK_Tab, GDK_CONTROL_MASK,
933 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
934 gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, GDK_CONTROL_MASK,
936 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
938 gtk_binding_entry_add_signal (binding_set, GDK_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
940 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
941 gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
943 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
947 gtk_text_view_init (GtkTextView *text_view)
951 widget = GTK_WIDGET (text_view);
953 GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
955 /* Set up default style */
956 text_view->wrap_mode = GTK_WRAP_NONE;
957 text_view->pixels_above_lines = 0;
958 text_view->pixels_below_lines = 0;
959 text_view->pixels_inside_wrap = 0;
960 text_view->justify = GTK_JUSTIFY_LEFT;
961 text_view->left_margin = 0;
962 text_view->right_margin = 0;
963 text_view->indent = 0;
964 text_view->tabs = NULL;
965 text_view->editable = TRUE;
967 gtk_drag_dest_set (widget,
969 target_table, G_N_ELEMENTS (target_table),
970 GDK_ACTION_COPY | GDK_ACTION_MOVE);
972 text_view->virtual_cursor_x = -1;
973 text_view->virtual_cursor_y = -1;
975 /* This object is completely private. No external entity can gain a reference
976 * to it; so we create it here and destroy it in finalize ().
978 text_view->im_context = gtk_im_multicontext_new ();
980 g_signal_connect (G_OBJECT (text_view->im_context), "commit",
981 G_CALLBACK (gtk_text_view_commit_handler), text_view);
982 g_signal_connect (G_OBJECT (text_view->im_context), "preedit_changed",
983 G_CALLBACK (gtk_text_view_preedit_changed_handler), text_view);
984 g_signal_connect (G_OBJECT (text_view->im_context), "retrieve_surrounding",
985 G_CALLBACK (gtk_text_view_retrieve_surrounding_handler), text_view);
986 g_signal_connect (G_OBJECT (text_view->im_context), "delete_surrounding",
987 G_CALLBACK (gtk_text_view_delete_surrounding_handler), text_view);
989 text_view->cursor_visible = TRUE;
991 text_view->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT,
994 text_view->drag_start_x = -1;
995 text_view->drag_start_y = -1;
997 text_view->pending_place_cursor_button = 0;
999 /* We handle all our own redrawing */
1000 gtk_widget_set_redraw_on_allocate (widget, FALSE);
1004 * gtk_text_view_new:
1006 * Creates a new #GtkTextView. If you don't call gtk_text_view_set_buffer()
1007 * before using the text view, an empty default buffer will be created
1008 * for you. Get the buffer with gtk_text_view_get_buffer(). If you want
1009 * to specify your own buffer, consider gtk_text_view_new_with_buffer().
1011 * Return value: a new #GtkTextView
1014 gtk_text_view_new (void)
1016 return GTK_WIDGET (gtk_type_new (gtk_text_view_get_type ()));
1020 * gtk_text_view_new_with_buffer:
1021 * @buffer: a #GtkTextBuffer
1023 * Creates a new #GtkTextView widget displaying the buffer
1024 * @buffer. One buffer can be shared among many widgets.
1025 * @buffer may be NULL to create a default buffer, in which case
1026 * this function is equivalent to gtk_text_view_new(). The
1027 * text view adds its own reference count to the buffer; it does not
1028 * take over an existing reference.
1030 * Return value: a new #GtkTextView.
1033 gtk_text_view_new_with_buffer (GtkTextBuffer *buffer)
1035 GtkTextView *text_view;
1037 text_view = (GtkTextView*)gtk_text_view_new ();
1039 gtk_text_view_set_buffer (text_view, buffer);
1041 return GTK_WIDGET (text_view);
1045 * gtk_text_view_set_buffer:
1046 * @text_view: a #GtkTextView
1047 * @buffer: a #GtkTextBuffer
1049 * Sets @buffer as the buffer being displayed by @text_view. The previous
1050 * buffer displayed by the text view is unreferenced, and a reference is
1051 * added to @buffer. If you owned a reference to @buffer before passing it
1052 * to this function, you must remove that reference yourself; #GtkTextView
1053 * will not "adopt" it.
1057 gtk_text_view_set_buffer (GtkTextView *text_view,
1058 GtkTextBuffer *buffer)
1060 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1061 g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer));
1063 if (text_view->buffer == buffer)
1066 if (text_view->buffer != NULL)
1068 /* Destroy all anchored children */
1072 copy = g_slist_copy (text_view->children);
1074 while (tmp_list != NULL)
1076 GtkTextViewChild *vc = tmp_list->data;
1080 gtk_widget_destroy (vc->widget);
1081 /* vc may now be invalid! */
1084 tmp_list = g_slist_next (tmp_list);
1087 g_slist_free (copy);
1089 g_signal_handlers_disconnect_by_func (G_OBJECT (text_view->buffer),
1090 gtk_text_view_mark_set_handler, text_view);
1091 g_object_unref (G_OBJECT (text_view->buffer));
1092 text_view->dnd_mark = NULL;
1094 if (GTK_WIDGET_REALIZED (text_view))
1095 gtk_text_buffer_remove_selection_clipboard (text_view->buffer,
1096 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
1099 text_view->buffer = buffer;
1105 g_object_ref (G_OBJECT (buffer));
1107 if (text_view->layout)
1108 gtk_text_layout_set_buffer (text_view->layout, buffer);
1110 gtk_text_buffer_get_iter_at_offset (text_view->buffer, &start, 0);
1112 text_view->dnd_mark = gtk_text_buffer_create_mark (text_view->buffer,
1116 text_view->first_para_mark = gtk_text_buffer_create_mark (text_view->buffer,
1120 text_view->first_para_pixels = 0;
1122 g_signal_connect (G_OBJECT (text_view->buffer), "mark_set",
1123 G_CALLBACK (gtk_text_view_mark_set_handler), text_view);
1125 if (GTK_WIDGET_REALIZED (text_view))
1126 gtk_text_buffer_add_selection_clipboard (text_view->buffer,
1127 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
1130 if (GTK_WIDGET_VISIBLE (text_view))
1131 gtk_widget_queue_draw (GTK_WIDGET (text_view));
1133 DV(g_print ("Invalidating due to set_buffer\n"));
1134 gtk_text_view_invalidate (text_view);
1137 static GtkTextBuffer*
1138 get_buffer (GtkTextView *text_view)
1140 if (text_view->buffer == NULL)
1143 b = gtk_text_buffer_new (NULL);
1144 gtk_text_view_set_buffer (text_view, b);
1145 g_object_unref (G_OBJECT (b));
1148 return text_view->buffer;
1152 * gtk_text_view_get_buffer:
1153 * @text_view: a #GtkTextView
1155 * Returns the #GtkTextBuffer being displayed by this text view.
1156 * The reference count on the buffer is not incremented; the caller
1157 * of this function won't own a new reference.
1159 * Return value: a #GtkTextBuffer
1162 gtk_text_view_get_buffer (GtkTextView *text_view)
1164 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
1166 return get_buffer (text_view);
1170 * gtk_text_view_get_iter_at_location:
1171 * @text_view: a #GtkTextView
1172 * @iter: a #GtkTextIter
1173 * @x: x position, in buffer coordinates
1174 * @y: y position, in buffer coordinates
1176 * Retrieves the iterator at buffer coordinates @x and @y. Buffer
1177 * coordinates are coordinates for the entire buffer, not just the
1178 * currently-displayed portion. If you have coordinates from an
1179 * event, you have to convert those to buffer coordinates with
1180 * gtk_text_view_window_to_buffer_coords().
1184 gtk_text_view_get_iter_at_location (GtkTextView *text_view,
1189 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1190 g_return_if_fail (iter != NULL);
1191 g_return_if_fail (text_view->layout != NULL);
1193 gtk_text_layout_get_iter_at_pixel (text_view->layout,
1200 * gtk_text_view_get_iter_location:
1201 * @text_view: a #GtkTextView
1202 * @iter: a #GtkTextIter
1203 * @location: bounds of the character at @iter
1205 * Gets a rectangle which roughly contains the character at @iter.
1206 * The rectangle position is in buffer coordinates; use
1207 * gtk_text_view_buffer_to_window_coords() to convert these
1208 * coordinates to coordinates for one of the windows in the text view.
1212 gtk_text_view_get_iter_location (GtkTextView *text_view,
1213 const GtkTextIter *iter,
1214 GdkRectangle *location)
1216 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1217 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1219 gtk_text_layout_get_iter_location (text_view->layout, iter, location);
1223 * gtk_text_view_get_line_yrange:
1224 * @text_view: a #GtkTextView
1225 * @iter: a #GtkTextIter
1226 * @y: return location for a y coordinate
1227 * @height: return location for a height
1229 * Gets the y coordinate of the top of the line containing @iter,
1230 * and the height of the line. The coordinate is a buffer coordinate;
1231 * convert to window coordinates with gtk_text_view_buffer_to_window_coords().
1235 gtk_text_view_get_line_yrange (GtkTextView *text_view,
1236 const GtkTextIter *iter,
1240 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1241 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1243 gtk_text_layout_get_line_yrange (text_view->layout,
1250 * gtk_text_view_get_line_at_y:
1251 * @text_view: a #GtkTextView
1252 * @target_iter: a #GtkTextIter
1253 * @y: a y coordinate
1254 * @line_top: return location for top coordinate of the line
1256 * Gets the #GtkTextIter at the start of the line containing
1257 * the coordinate @y. @y is in buffer coordinates, convert from
1258 * window coordinates with gtk_text_view_window_to_buffer_coords().
1259 * If non-%NULL, @line_top will be filled with the coordinate of the top
1263 gtk_text_view_get_line_at_y (GtkTextView *text_view,
1264 GtkTextIter *target_iter,
1268 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1270 gtk_text_layout_get_line_at_y (text_view->layout,
1277 set_adjustment_clamped (GtkAdjustment *adj, gdouble val)
1279 DV (g_print (" Setting adj to raw value %g\n", val));
1281 /* We don't really want to clamp to upper; we want to clamp to
1282 upper - page_size which is the highest value the scrollbar
1283 will let us reach. */
1284 if (val > (adj->upper - adj->page_size))
1285 val = adj->upper - adj->page_size;
1287 if (val < adj->lower)
1290 if (val != adj->value)
1292 DV (g_print (" Setting adj to clamped value %g\n", val));
1293 gtk_adjustment_set_value (adj, val);
1301 * gtk_text_view_scroll_to_iter:
1302 * @text_view: a #GtkTextView
1303 * @iter: a #GtkTextIter
1304 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1305 * @use_align: whether to use alignment arguments (if %FALSE, just get the mark onscreen)
1306 * @xalign: horizontal alignment of mark within visible area.
1307 * @yalign: vertical alignment of mark within visible area
1309 * Scrolls @text_view so that @iter is on the screen in the position
1310 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1311 * left or top, 1.0 indicates right or bottom, 0.5 means center. If @use_align
1312 * is %FALSE, the text scrolls the minimal distance to get the mark onscreen,
1313 * possibly not scrolling at all. The effective screen for purposes
1314 * of this function is reduced by a margin of size @within_margin.
1315 * NOTE: This function uses the currently-computed height of the
1316 * lines in the text buffer. Note that line heights are computed
1317 * in an idle handler; so this function may not have the desired effect
1318 * if it's called before the height computations. To avoid oddness,
1319 * consider using gtk_text_view_scroll_to_mark() which saves a point
1320 * to be scrolled to after line validation.
1322 * Return value: %TRUE if scrolling occurred
1325 gtk_text_view_scroll_to_iter (GtkTextView *text_view,
1327 gdouble within_margin,
1333 GdkRectangle screen;
1338 gboolean retval = FALSE;
1340 gint screen_xoffset, screen_yoffset;
1341 gint current_x_scroll, current_y_scroll;
1343 /* FIXME why don't we do the validate-at-scroll-destination thing
1344 * from flush_scroll in this function? I think it wasn't done before
1345 * because changed_handler was screwed up, but I could be wrong.
1348 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1349 g_return_val_if_fail (iter != NULL, FALSE);
1350 g_return_val_if_fail (within_margin >= 0.0 && within_margin < 0.5, FALSE);
1351 g_return_val_if_fail (xalign >= 0.0 && xalign <= 1.0, FALSE);
1352 g_return_val_if_fail (yalign >= 0.0 && yalign <= 1.0, FALSE);
1354 widget = GTK_WIDGET (text_view);
1356 DV(g_print(G_STRLOC"\n"));
1358 gtk_text_layout_get_iter_location (text_view->layout,
1362 DV (g_print (" target rect %d,%d %d x %d\n", rect.x, rect.y, rect.width, rect.height));
1364 current_x_scroll = text_view->xoffset;
1365 current_y_scroll = text_view->yoffset;
1367 screen.x = current_x_scroll;
1368 screen.y = current_y_scroll;
1369 screen.width = SCREEN_WIDTH (widget);
1370 screen.height = SCREEN_HEIGHT (widget);
1372 screen_xoffset = screen.width * within_margin;
1373 screen_yoffset = screen.height * within_margin;
1375 screen.x += screen_xoffset;
1376 screen.y += screen_yoffset;
1377 screen.width -= screen_xoffset * 2;
1378 screen.height -= screen_yoffset * 2;
1380 /* paranoia check */
1381 if (screen.width < 1)
1383 if (screen.height < 1)
1386 screen_right = screen.x + screen.width;
1387 screen_bottom = screen.y + screen.height;
1389 /* The alignment affects the point in the target character that we
1390 * choose to align. If we're doing right/bottom alignment, we align
1391 * the right/bottom edge of the character the mark is at; if we're
1392 * doing left/top we align the left/top edge of the character; if
1393 * we're doing center alignment we align the center of the
1397 /* Vertical scroll */
1400 scroll_dest = current_y_scroll;
1404 scroll_dest = rect.y + (rect.height * yalign) - (screen.height * yalign);
1406 /* if scroll_dest < screen.y, we move a negative increment (up),
1407 * else a positive increment (down)
1409 scroll_inc = scroll_dest - screen.y + screen_yoffset;
1413 /* move minimum to get onscreen */
1414 if (rect.y < screen.y)
1416 scroll_dest = rect.y;
1417 scroll_inc = scroll_dest - screen.y - screen_yoffset;
1419 else if ((rect.y + rect.height) > screen_bottom)
1421 scroll_dest = rect.y + rect.height;
1422 scroll_inc = scroll_dest - screen_bottom + screen_yoffset;
1426 if (scroll_inc != 0)
1428 retval = set_adjustment_clamped (get_vadjustment (text_view),
1429 current_y_scroll + scroll_inc);
1431 DV (g_print (" vert increment %d\n", scroll_inc));
1434 /* Horizontal scroll */
1437 scroll_dest = current_x_scroll;
1441 scroll_dest = rect.x + (rect.width * xalign) - (screen.width * xalign);
1443 /* if scroll_dest < screen.y, we move a negative increment (left),
1444 * else a positive increment (right)
1446 scroll_inc = scroll_dest - screen.x + screen_xoffset;
1450 /* move minimum to get onscreen */
1451 if (rect.x < screen.x)
1453 scroll_dest = rect.x;
1454 scroll_inc = scroll_dest - screen.x - screen_xoffset;
1456 else if ((rect.x + rect.width) > screen_right)
1458 scroll_dest = rect.x + rect.width;
1459 scroll_inc = scroll_dest - screen_right + screen_xoffset;
1463 if (scroll_inc != 0)
1465 retval = set_adjustment_clamped (get_hadjustment (text_view),
1466 current_x_scroll + scroll_inc);
1468 DV (g_print (" horiz increment %d\n", scroll_inc));
1472 DV(g_print (">Actually scrolled ("G_STRLOC")\n"));
1474 DV(g_print (">Didn't end up scrolling ("G_STRLOC")\n"));
1480 free_pending_scroll (GtkTextPendingScroll *scroll)
1482 if (!gtk_text_mark_get_deleted (scroll->mark))
1483 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark),
1485 g_object_unref (G_OBJECT (scroll->mark));
1490 gtk_text_view_queue_scroll (GtkTextView *text_view,
1492 gdouble within_margin,
1498 GtkTextPendingScroll *scroll;
1500 DV(g_print(G_STRLOC"\n"));
1502 scroll = g_new (GtkTextPendingScroll, 1);
1504 scroll->within_margin = within_margin;
1505 scroll->use_align = use_align;
1506 scroll->xalign = xalign;
1507 scroll->yalign = yalign;
1509 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
1511 scroll->mark = gtk_text_buffer_create_mark (get_buffer (text_view),
1514 gtk_text_mark_get_left_gravity (mark));
1516 g_object_ref (G_OBJECT (scroll->mark));
1518 if (text_view->pending_scroll)
1519 free_pending_scroll (text_view->pending_scroll);
1521 text_view->pending_scroll = scroll;
1525 gtk_text_view_flush_scroll (GtkTextView *text_view)
1528 GtkTextPendingScroll *scroll;
1532 widget = GTK_WIDGET (text_view);
1534 DV(g_print(G_STRLOC"\n"));
1536 if (text_view->pending_scroll == NULL)
1538 DV (g_print ("in flush scroll, no pending scroll\n"));
1542 scroll = text_view->pending_scroll;
1544 /* avoid recursion */
1545 text_view->pending_scroll = NULL;
1547 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, scroll->mark);
1549 /* Validate area around the scroll destination, so the adjustment
1550 * can meaningfully point into that area. We must validate
1551 * enough area to be sure that after we scroll, everything onscreen
1552 * is valid; otherwise, validation will maintain the first para
1553 * in one place, but may push the target iter off the bottom of
1556 DV(g_print (">Validating scroll destination ("G_STRLOC")\n"));
1557 gtk_text_layout_validate_yrange (text_view->layout, &iter,
1558 - (widget->allocation.height * 2),
1559 widget->allocation.height * 2);
1561 DV(g_print (">Done validating scroll destination ("G_STRLOC")\n"));
1563 /* Ensure we have updated width/height */
1564 gtk_text_view_update_adjustments (text_view);
1566 retval = gtk_text_view_scroll_to_iter (text_view,
1568 scroll->within_margin,
1573 free_pending_scroll (scroll);
1579 gtk_text_view_set_adjustment_upper (GtkAdjustment *adj, gdouble upper)
1581 if (upper != adj->upper)
1583 gdouble min = MAX (0.0, upper - adj->page_size);
1584 gboolean value_changed = FALSE;
1588 if (adj->value > min)
1591 value_changed = TRUE;
1594 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
1595 DV(g_print(">Changed adj upper to %g ("G_STRLOC")\n", upper));
1599 DV(g_print(">Changed adj value because upper decreased ("G_STRLOC")\n"));
1600 gtk_signal_emit_by_name (GTK_OBJECT (adj), "value_changed");
1606 gtk_text_view_update_adjustments (GtkTextView *text_view)
1608 gint width = 0, height = 0;
1610 DV(g_print(">Updating adjustments ("G_STRLOC")\n"));
1612 if (text_view->layout)
1613 gtk_text_layout_get_size (text_view->layout, &width, &height);
1615 if (text_view->width != width || text_view->height != height)
1617 text_view->width = width;
1618 text_view->height = height;
1620 gtk_text_view_set_adjustment_upper (get_hadjustment (text_view),
1621 MAX (SCREEN_WIDTH (text_view), width));
1622 gtk_text_view_set_adjustment_upper (get_vadjustment (text_view),
1623 MAX (SCREEN_HEIGHT (text_view), height));
1625 /* hadj/vadj exist since we called get_hadjustment/get_vadjustment above */
1627 /* Set up the step sizes; we'll say that a page is
1628 our allocation minus one step, and a step is
1629 1/10 of our allocation. */
1630 text_view->hadjustment->step_increment =
1631 SCREEN_WIDTH (text_view) / 10.0;
1632 text_view->hadjustment->page_increment =
1633 SCREEN_WIDTH (text_view) * 0.9;
1635 text_view->vadjustment->step_increment =
1636 SCREEN_HEIGHT (text_view) / 10.0;
1637 text_view->vadjustment->page_increment =
1638 SCREEN_HEIGHT (text_view) * 0.9;
1640 gtk_signal_emit_by_name (GTK_OBJECT (get_hadjustment (text_view)), "changed");
1641 gtk_signal_emit_by_name (GTK_OBJECT (get_hadjustment (text_view)), "changed");
1646 gtk_text_view_update_layout_width (GtkTextView *text_view)
1648 DV(g_print(">Updating layout width ("G_STRLOC")\n"));
1650 gtk_text_view_ensure_layout (text_view);
1652 gtk_text_layout_set_screen_width (text_view->layout,
1653 SCREEN_WIDTH (text_view));
1657 gtk_text_view_update_im_spot_location (GtkTextView *text_view)
1660 gint cursor_x_pos, cursor_y_pos;
1662 if (text_view->layout == NULL)
1665 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
1667 area.x = cursor_x_pos;
1668 area.y = cursor_y_pos;
1669 area.width = area.height = 0;
1671 gtk_im_context_set_cursor_location (text_view->im_context, &area);
1675 * gtk_text_view_scroll_to_mark:
1676 * @text_view: a #GtkTextView
1677 * @mark: a #GtkTextMark
1678 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1679 * @use_align: whether to use alignment arguments (if %FALSE, just get the mark onscreen)
1680 * @xalign: horizontal alignment of mark within visible area.
1681 * @yalign: vertical alignment of mark within visible area
1683 * Scrolls @text_view so that @mark is on the screen in the position
1684 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1685 * left or top, 1.0 indicates right or bottom, 0.5 means center. If @use_align
1686 * is %FALSE, the text scrolls the minimal distance to get the mark onscreen,
1687 * possibly not scrolling at all. The effective screen for purposes
1688 * of this function is reduced by a margin of size @within_margin.
1692 gtk_text_view_scroll_to_mark (GtkTextView *text_view,
1694 gdouble within_margin,
1699 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1700 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
1701 g_return_if_fail (within_margin >= 0.0 && within_margin < 0.5);
1702 g_return_if_fail (xalign >= 0.0 && xalign <= 1.0);
1703 g_return_if_fail (yalign >= 0.0 && yalign <= 1.0);
1705 gtk_text_view_queue_scroll (text_view, mark,
1711 /* If no validation is pending, we need to go ahead and force an
1714 if (text_view->layout &&
1715 gtk_text_layout_is_valid (text_view->layout))
1716 gtk_text_view_flush_scroll (text_view);
1720 * gtk_text_view_scroll_mark_onscreen:
1721 * @text_view: a #GtkTextView
1722 * @mark: a mark in the buffer for @text_view
1724 * Scrolls @text_view the minimum distance such that @mark is contained
1725 * within the visible area of the widget.
1729 gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
1732 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1733 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
1735 gtk_text_view_scroll_to_mark (text_view, mark, 0.0, FALSE, 0.0, 0.0);
1739 clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter)
1741 GdkRectangle visible_rect;
1742 gtk_text_view_get_visible_rect (text_view, &visible_rect);
1744 return gtk_text_layout_clamp_iter_to_vrange (text_view->layout, iter,
1746 visible_rect.y + visible_rect.height);
1750 * gtk_text_view_move_mark_onscreen:
1751 * @text_view: a #GtkTextView
1752 * @mark: a #GtkTextMark
1754 * Moves a mark within the buffer so that it's
1755 * located within the currently-visible text area.
1757 * Return value: %TRUE if the mark moved (wasn't already onscreen)
1760 gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
1765 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1766 g_return_val_if_fail (mark != NULL, FALSE);
1768 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
1770 if (clamp_iter_onscreen (text_view, &iter))
1772 gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter);
1780 * gtk_text_view_get_visible_rect:
1781 * @text_view: a #GtkTextView
1782 * @visible_rect: rectangle to fill
1784 * Fills @visible_rect with the currently-visible
1785 * region of the buffer, in buffer coordinates. Convert to window coordinates
1786 * with gtk_text_view_buffer_to_window_coords().
1789 gtk_text_view_get_visible_rect (GtkTextView *text_view,
1790 GdkRectangle *visible_rect)
1794 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1796 widget = GTK_WIDGET (text_view);
1800 visible_rect->x = text_view->xoffset;
1801 visible_rect->y = text_view->yoffset;
1802 visible_rect->width = SCREEN_WIDTH (widget);
1803 visible_rect->height = SCREEN_HEIGHT (widget);
1805 DV(g_print(" visible rect: %d,%d %d x %d\n",
1808 visible_rect->width,
1809 visible_rect->height));
1814 * gtk_text_view_set_wrap_mode:
1815 * @text_view: a #GtkTextView
1816 * @wrap_mode: a #GtkWrapMode
1818 * Sets the line wrapping for the view.
1821 gtk_text_view_set_wrap_mode (GtkTextView *text_view,
1822 GtkWrapMode wrap_mode)
1824 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1826 if (text_view->wrap_mode != wrap_mode)
1828 text_view->wrap_mode = wrap_mode;
1830 if (text_view->layout)
1832 text_view->layout->default_style->wrap_mode = wrap_mode;
1833 gtk_text_layout_default_style_changed (text_view->layout);
1837 g_object_notify (G_OBJECT (text_view), "wrap_mode");
1841 * gtk_text_view_get_wrap_mode:
1842 * @text_view: a #GtkTextView
1844 * Gets the line wrapping for the view.
1846 * Return value: the line wrap setting
1849 gtk_text_view_get_wrap_mode (GtkTextView *text_view)
1851 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAP_NONE);
1853 return text_view->wrap_mode;
1857 * gtk_text_view_set_editable:
1858 * @text_view: a #GtkTextView
1859 * @setting: whether it's editable
1861 * Sets the default editability of the #GtkTextView. You can override
1862 * this default setting with tags in the buffer, using the "editable"
1863 * attribute of tags.
1866 gtk_text_view_set_editable (GtkTextView *text_view,
1869 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1870 setting = setting != FALSE;
1872 if (text_view->editable != setting)
1874 text_view->editable = setting;
1876 if (text_view->layout)
1878 text_view->layout->default_style->editable = text_view->editable;
1879 gtk_text_layout_default_style_changed (text_view->layout);
1882 g_object_notify (G_OBJECT (text_view), "editable");
1887 * gtk_text_view_get_editable:
1888 * @text_view: a #GtkTextView
1890 * Returns the default editability of the #GtkTextView. Tags in the
1891 * buffer may override this setting for some ranges of text.
1893 * Return value: whether text is editable by default
1896 gtk_text_view_get_editable (GtkTextView *text_view)
1898 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1900 return text_view->editable;
1904 * gtk_text_view_set_pixels_above_lines:
1905 * @text_view: a #GtkTextView
1906 * @pixels_above_lines: pixels above paragraphs
1908 * Sets the default number of blank pixels above paragraphs in @text_view.
1909 * Tags in the buffer for @text_view may override the defaults.
1913 gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
1914 gint pixels_above_lines)
1916 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1918 if (text_view->pixels_above_lines != pixels_above_lines)
1920 text_view->pixels_above_lines = pixels_above_lines;
1922 if (text_view->layout)
1924 text_view->layout->default_style->pixels_above_lines = pixels_above_lines;
1925 gtk_text_layout_default_style_changed (text_view->layout);
1928 g_object_notify (G_OBJECT (text_view), "pixels_above_lines");
1933 * gtk_text_view_get_pixels_above_lines:
1934 * @text_view: a #GtkTextView
1936 * Gets the default number of pixels to put above paragraphs.
1938 * Return value: default number of pixels above paragraphs
1941 gtk_text_view_get_pixels_above_lines (GtkTextView *text_view)
1943 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
1945 return text_view->pixels_above_lines;
1949 * gtk_text_view_set_pixels_below_lines:
1950 * @text_view: a #GtkTextView
1951 * @pixels_below_lines: pixels below paragraphs
1953 * Sets the default number of pixels of blank space
1954 * to put below paragraphs in @text_view. May be overridden
1955 * by tags applied to @text_view's buffer.
1959 gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
1960 gint pixels_below_lines)
1962 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1964 if (text_view->pixels_below_lines != pixels_below_lines)
1966 text_view->pixels_below_lines = pixels_below_lines;
1968 if (text_view->layout)
1970 text_view->layout->default_style->pixels_below_lines = pixels_below_lines;
1971 gtk_text_layout_default_style_changed (text_view->layout);
1974 g_object_notify (G_OBJECT (text_view), "pixels_below_lines");
1979 * gtk_text_view_get_pixels_below_lines:
1980 * @text_view: a #GtkTextView
1982 * Gets the value set by gtk_text_view_set_pixels_below_lines().
1984 * Return value: default number of blank pixels below paragraphs
1987 gtk_text_view_get_pixels_below_lines (GtkTextView *text_view)
1989 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
1991 return text_view->pixels_below_lines;
1995 * gtk_text_view_set_pixels_inside_wrap:
1996 * @text_view: a #GtkTextView
1997 * @pixels_inside_wrap: default number of pixels between wrapped lines
1999 * Sets the default number of pixels of blank space to leave between
2000 * display/wrapped lines within a paragraph. May be overridden by
2001 * tags in @text_view's buffer.
2005 gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
2006 gint pixels_inside_wrap)
2008 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2010 if (text_view->pixels_inside_wrap != pixels_inside_wrap)
2012 text_view->pixels_inside_wrap = pixels_inside_wrap;
2014 if (text_view->layout)
2016 text_view->layout->default_style->pixels_inside_wrap = pixels_inside_wrap;
2017 gtk_text_layout_default_style_changed (text_view->layout);
2020 g_object_notify (G_OBJECT (text_view), "pixels_inside_wrap");
2025 * gtk_text_view_get_pixels_inside_wrap:
2026 * @text_view: a #GtkTextView
2028 * Gets the value set by gtk_text_view_set_pixels_inside_wrap().
2030 * Return value: default number of pixels of blank space between wrapped lines
2033 gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view)
2035 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2037 return text_view->pixels_inside_wrap;
2041 * gtk_text_view_set_justification:
2042 * @text_view: a #GtkTextView
2043 * @justification: justification
2045 * Sets the default justification of text in @text_view.
2046 * Tags in the view's buffer may override the default.
2050 gtk_text_view_set_justification (GtkTextView *text_view,
2051 GtkJustification justification)
2053 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2055 if (text_view->justify != justification)
2057 text_view->justify = justification;
2059 if (text_view->layout)
2061 text_view->layout->default_style->justification = justification;
2062 gtk_text_layout_default_style_changed (text_view->layout);
2065 g_object_notify (G_OBJECT (text_view), "justification");
2070 * gtk_text_view_get_justification:
2071 * @text_view: a #GtkTextView
2073 * Gets the default justification of paragraphs in @text_view.
2074 * Tags in the buffer may override the default.
2076 * Return value: default justification
2079 gtk_text_view_get_justification (GtkTextView *text_view)
2081 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_JUSTIFY_LEFT);
2083 return text_view->justify;
2087 * gtk_text_view_set_left_margin:
2088 * @text_view: a #GtkTextView
2089 * @left_margin: left margin in pixels
2091 * Sets the default left margin for text in @text_view.
2092 * Tags in the buffer may override the default.
2096 gtk_text_view_set_left_margin (GtkTextView *text_view,
2099 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2101 if (text_view->left_margin != left_margin)
2103 text_view->left_margin = left_margin;
2105 if (text_view->layout)
2107 text_view->layout->default_style->left_margin = left_margin;
2108 gtk_text_layout_default_style_changed (text_view->layout);
2111 g_object_notify (G_OBJECT (text_view), "left_margin");
2116 * gtk_text_view_get_left_margin:
2117 * @text_view: a #GtkTextView
2119 * Gets the default left margin size of paragraphs in the @text_view.
2120 * Tags in the buffer may override the default.
2122 * Return value: left margin in pixels
2125 gtk_text_view_get_left_margin (GtkTextView *text_view)
2127 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2129 return text_view->left_margin;
2133 * gtk_text_view_set_right_margin:
2134 * @text_view: a #GtkTextView
2135 * @right_margin: right margin in pixels
2137 * Sets the default right margin for text in the text view.
2138 * Tags in the buffer may override the default.
2142 gtk_text_view_set_right_margin (GtkTextView *text_view,
2145 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2147 if (text_view->right_margin != right_margin)
2149 text_view->right_margin = right_margin;
2151 if (text_view->layout)
2153 text_view->layout->default_style->right_margin = right_margin;
2154 gtk_text_layout_default_style_changed (text_view->layout);
2157 g_object_notify (G_OBJECT (text_view), "right_margin");
2162 * gtk_text_view_get_right_margin:
2163 * @text_view: a #GtkTextView
2165 * Gets the default right margin for text in @text_view. Tags
2166 * in the buffer may override the default.
2168 * Return value: right margin in pixels
2171 gtk_text_view_get_right_margin (GtkTextView *text_view)
2173 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2175 return text_view->right_margin;
2179 * gtk_text_view_set_indent:
2180 * @text_view: a #GtkTextView
2181 * @indent: indentation in pixels
2183 * Sets the default indentation for paragraphs in @text_view.
2184 * Tags in the buffer may override the default.
2188 gtk_text_view_set_indent (GtkTextView *text_view,
2191 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2193 if (text_view->indent != indent)
2195 text_view->indent = indent;
2197 if (text_view->layout)
2199 text_view->layout->default_style->indent = indent;
2200 gtk_text_layout_default_style_changed (text_view->layout);
2203 g_object_notify (G_OBJECT (text_view), "indent");
2208 * gtk_text_view_get_indent:
2209 * @text_view: a #GtkTextView
2211 * Gets the default indentation of paragraphs in @text_view.
2212 * Tags in the view's buffer may override the default.
2213 * The indentation may be negative.
2215 * Return value: number of pixels of indentation
2218 gtk_text_view_get_indent (GtkTextView *text_view)
2220 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2222 return text_view->indent;
2226 * gtk_text_view_set_tabs:
2227 * @text_view: a #GtkTextView
2228 * @tabs: tabs as a #PangoTabArray
2230 * Sets the default tab stops for paragraphs in @text_view.
2231 * Tags in the buffer may override the default.
2235 gtk_text_view_set_tabs (GtkTextView *text_view,
2236 PangoTabArray *tabs)
2238 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2240 if (text_view->tabs)
2241 pango_tab_array_free (text_view->tabs);
2243 text_view->tabs = tabs ? pango_tab_array_copy (tabs) : NULL;
2245 if (text_view->layout)
2247 /* some unkosher futzing in internal struct details... */
2248 if (text_view->layout->default_style->tabs)
2249 pango_tab_array_free (text_view->layout->default_style->tabs);
2251 text_view->layout->default_style->tabs =
2252 text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
2254 gtk_text_layout_default_style_changed (text_view->layout);
2257 g_object_notify (G_OBJECT (text_view), "tabs");
2261 * gtk_text_view_get_tabs:
2262 * @text_view: a #GtkTextView
2264 * Gets the default tabs for @text_view. Tags in the buffer may
2265 * override the defaults. The returned array will be %NULL if
2266 * "standard" (8-space) tabs are used. Free the return value
2267 * with pango_tab_array_free().
2269 * Return value: copy of default tab array, or %NULL if "standard" tabs are used; must be freed with pango_tab_array_free().
2272 gtk_text_view_get_tabs (GtkTextView *text_view)
2274 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
2276 return text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
2280 * gtk_text_view_set_cursor_visible:
2281 * @text_view: a #GtkTextView
2282 * @setting: whether to show the insertion cursor
2284 * Toggles whether the insertion point is displayed. A buffer with no editable
2285 * text probably shouldn't have a visible cursor, so you may want to turn
2289 gtk_text_view_set_cursor_visible (GtkTextView *text_view,
2292 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2294 setting = (setting != FALSE);
2296 if (text_view->cursor_visible != setting)
2298 text_view->cursor_visible = setting;
2300 if (GTK_WIDGET_HAS_FOCUS (text_view))
2302 if (text_view->layout)
2304 gtk_text_layout_set_cursor_visible (text_view->layout, setting);
2305 gtk_text_view_check_cursor_blink (text_view);
2309 g_object_notify (G_OBJECT (text_view), "cursor_visible");
2314 * gtk_text_view_get_cursor_visible:
2315 * @text_view: a #GtkTextView
2317 * Find out whether the cursor is being displayed.
2319 * Return value: whether the insertion mark is visible
2322 gtk_text_view_get_cursor_visible (GtkTextView *text_view)
2324 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2326 return text_view->cursor_visible;
2331 * gtk_text_view_place_cursor_onscreen:
2332 * @text_view: a #GtkTextView
2334 * Moves the cursor to the currently visible region of the
2335 * buffer, it it isn't there already.
2337 * Return value: TRUE if the cursor had to be moved.
2340 gtk_text_view_place_cursor_onscreen (GtkTextView *text_view)
2344 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2346 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
2347 gtk_text_buffer_get_mark (get_buffer (text_view),
2350 if (clamp_iter_onscreen (text_view, &insert))
2352 gtk_text_buffer_place_cursor (get_buffer (text_view), &insert);
2360 gtk_text_view_remove_validate_idles (GtkTextView *text_view)
2362 if (text_view->first_validate_idle != 0)
2364 DV (g_print ("Removing first validate idle: %s\n", G_STRLOC));
2365 g_source_remove (text_view->first_validate_idle);
2366 text_view->first_validate_idle = 0;
2369 if (text_view->incremental_validate_idle != 0)
2371 g_source_remove (text_view->incremental_validate_idle);
2372 text_view->incremental_validate_idle = 0;
2377 gtk_text_view_destroy (GtkObject *object)
2379 GtkTextView *text_view;
2380 GtkTextLayout *layout;
2382 text_view = GTK_TEXT_VIEW (object);
2384 layout = text_view->layout;
2386 gtk_text_view_remove_validate_idles (text_view);
2387 gtk_text_view_set_buffer (text_view, NULL);
2388 gtk_text_view_destroy_layout (text_view);
2390 (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
2394 gtk_text_view_finalize (GObject *object)
2396 GtkTextView *text_view;
2398 text_view = GTK_TEXT_VIEW (object);
2400 g_return_if_fail (text_view->buffer == NULL);
2402 gtk_text_view_destroy_layout (text_view);
2403 gtk_text_view_set_buffer (text_view, NULL);
2405 if (text_view->pending_scroll)
2407 free_pending_scroll (text_view->pending_scroll);
2408 text_view->pending_scroll = NULL;
2411 if (text_view->hadjustment)
2412 g_object_unref (G_OBJECT (text_view->hadjustment));
2413 if (text_view->vadjustment)
2414 g_object_unref (G_OBJECT (text_view->vadjustment));
2416 text_window_free (text_view->text_window);
2418 if (text_view->left_window)
2419 text_window_free (text_view->left_window);
2421 if (text_view->top_window)
2422 text_window_free (text_view->top_window);
2424 if (text_view->right_window)
2425 text_window_free (text_view->right_window);
2427 if (text_view->bottom_window)
2428 text_window_free (text_view->bottom_window);
2430 g_object_unref (G_OBJECT (text_view->im_context));
2432 (* G_OBJECT_CLASS (parent_class)->finalize) (object);
2436 gtk_text_view_set_property (GObject *object,
2438 const GValue *value,
2441 GtkTextView *text_view;
2443 text_view = GTK_TEXT_VIEW (object);
2447 case PROP_PIXELS_ABOVE_LINES:
2448 gtk_text_view_set_pixels_above_lines (text_view, g_value_get_int (value));
2451 case PROP_PIXELS_BELOW_LINES:
2452 gtk_text_view_set_pixels_below_lines (text_view, g_value_get_int (value));
2455 case PROP_PIXELS_INSIDE_WRAP:
2456 gtk_text_view_set_pixels_inside_wrap (text_view, g_value_get_int (value));
2460 gtk_text_view_set_editable (text_view, g_value_get_boolean (value));
2463 case PROP_WRAP_MODE:
2464 gtk_text_view_set_wrap_mode (text_view, g_value_get_enum (value));
2467 case PROP_JUSTIFICATION:
2468 gtk_text_view_set_justification (text_view, g_value_get_enum (value));
2471 case PROP_LEFT_MARGIN:
2472 gtk_text_view_set_left_margin (text_view, g_value_get_int (value));
2475 case PROP_RIGHT_MARGIN:
2476 gtk_text_view_set_right_margin (text_view, g_value_get_int (value));
2480 gtk_text_view_set_indent (text_view, g_value_get_int (value));
2484 gtk_text_view_set_tabs (text_view, g_value_get_boxed (value));
2487 case PROP_CURSOR_VISIBLE:
2488 gtk_text_view_set_cursor_visible (text_view, g_value_get_boolean (value));
2492 g_assert_not_reached ();
2498 gtk_text_view_get_property (GObject *object,
2503 GtkTextView *text_view;
2505 text_view = GTK_TEXT_VIEW (object);
2509 case PROP_PIXELS_ABOVE_LINES:
2510 g_value_set_int (value, text_view->pixels_above_lines);
2513 case PROP_PIXELS_BELOW_LINES:
2514 g_value_set_int (value, text_view->pixels_below_lines);
2517 case PROP_PIXELS_INSIDE_WRAP:
2518 g_value_set_int (value, text_view->pixels_inside_wrap);
2522 g_value_set_boolean (value, text_view->editable);
2525 case PROP_WRAP_MODE:
2526 g_value_set_enum (value, text_view->wrap_mode);
2529 case PROP_JUSTIFICATION:
2530 g_value_set_enum (value, text_view->justify);
2533 case PROP_LEFT_MARGIN:
2534 g_value_set_int (value, text_view->left_margin);
2537 case PROP_RIGHT_MARGIN:
2538 g_value_set_int (value, text_view->right_margin);
2542 g_value_set_int (value, text_view->indent);
2546 g_value_set_boxed (value, text_view->tabs);
2549 case PROP_CURSOR_VISIBLE:
2550 g_value_set_boolean (value, text_view->cursor_visible);
2554 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2560 gtk_text_view_size_request (GtkWidget *widget,
2561 GtkRequisition *requisition)
2563 GtkTextView *text_view;
2565 gint focus_edge_width;
2567 gboolean interior_focus;
2569 text_view = GTK_TEXT_VIEW (widget);
2571 gtk_widget_style_get (widget,
2572 "interior_focus", &interior_focus,
2573 "focus_line_width", &focus_width,
2577 focus_edge_width = 0;
2579 focus_edge_width = focus_width;
2581 if (text_view->layout)
2583 text_view->text_window->requisition.width = text_view->layout->width;
2584 text_view->text_window->requisition.height = text_view->layout->height;
2588 text_view->text_window->requisition.width = 0;
2589 text_view->text_window->requisition.height = 0;
2592 requisition->width = text_view->text_window->requisition.width + focus_edge_width * 2;
2593 requisition->height = text_view->text_window->requisition.height + focus_edge_width * 2;
2595 if (text_view->left_window)
2596 requisition->width += text_view->left_window->requisition.width;
2598 if (text_view->right_window)
2599 requisition->width += text_view->right_window->requisition.width;
2601 if (text_view->top_window)
2602 requisition->height += text_view->top_window->requisition.height;
2604 if (text_view->bottom_window)
2605 requisition->height += text_view->bottom_window->requisition.height;
2607 requisition->width += GTK_CONTAINER (text_view)->border_width * 2;
2608 requisition->height += GTK_CONTAINER (text_view)->border_width * 2;
2610 tmp_list = text_view->children;
2611 while (tmp_list != NULL)
2613 GtkTextViewChild *child = tmp_list->data;
2617 GtkRequisition child_req;
2618 GtkRequisition old_req;
2620 gtk_widget_get_child_requisition (child->widget, &old_req);
2622 gtk_widget_size_request (child->widget, &child_req);
2624 gtk_widget_get_child_requisition (child->widget, &child_req);
2626 /* Invalidate layout lines if required */
2627 if (text_view->layout &&
2628 (old_req.width != child_req.width ||
2629 old_req.height != child_req.height))
2630 gtk_text_child_anchor_queue_resize (child->anchor,
2635 GtkRequisition child_req;
2637 gtk_widget_size_request (child->widget, &child_req);
2640 tmp_list = g_slist_next (tmp_list);
2645 gtk_text_view_compute_child_allocation (GtkTextView *text_view,
2646 GtkTextViewChild *vc,
2647 GtkAllocation *allocation)
2653 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
2657 gtk_text_layout_get_line_yrange (text_view->layout, &iter,
2660 buffer_y += vc->from_top_of_line;
2662 allocation->x = vc->from_left_of_buffer - text_view->xoffset;
2663 allocation->y = buffer_y - text_view->yoffset;
2665 gtk_widget_get_child_requisition (vc->widget, &req);
2666 allocation->width = req.width;
2667 allocation->height = req.height;
2671 gtk_text_view_update_child_allocation (GtkTextView *text_view,
2672 GtkTextViewChild *vc)
2674 GtkAllocation allocation;
2676 gtk_text_view_compute_child_allocation (text_view, vc, &allocation);
2678 gtk_widget_size_allocate (vc->widget, &allocation);
2681 g_print ("allocation for %p allocated to %d,%d yoffset = %d\n",
2683 vc->widget->allocation.x,
2684 vc->widget->allocation.y,
2685 text_view->yoffset);
2690 gtk_text_view_child_allocated (GtkTextLayout *layout,
2696 GtkTextViewChild *vc = NULL;
2697 GtkTextView *text_view = data;
2699 /* x,y is the position of the child from the top of the line, and
2700 * from the left of the buffer. We have to translate that into text
2701 * window coordinates, then size_allocate the child.
2704 vc = g_object_get_data (G_OBJECT (child),
2705 "gtk-text-view-child");
2707 g_assert (vc != NULL);
2709 DV (g_print ("child allocated at %d,%d\n", x, y));
2711 vc->from_left_of_buffer = x;
2712 vc->from_top_of_line = y;
2714 gtk_text_view_update_child_allocation (text_view, vc);
2718 gtk_text_view_allocate_children (GtkTextView *text_view)
2722 DV(g_print(G_STRLOC"\n"));
2724 tmp_list = text_view->children;
2725 while (tmp_list != NULL)
2727 GtkTextViewChild *child = tmp_list->data;
2731 /* We need to force-validate the regions containing
2734 GtkTextIter child_loc;
2735 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
2739 gtk_text_layout_validate_yrange (text_view->layout,
2745 GtkAllocation allocation;
2746 GtkRequisition child_req;
2748 g_assert (child != NULL);
2750 allocation.x = child->x;
2751 allocation.y = child->y;
2753 gtk_widget_get_child_requisition (child->widget, &child_req);
2755 allocation.width = child_req.width;
2756 allocation.height = child_req.height;
2758 gtk_widget_size_allocate (child->widget, &allocation);
2761 tmp_list = g_slist_next (tmp_list);
2766 gtk_text_view_size_allocate (GtkWidget *widget,
2767 GtkAllocation *allocation)
2769 GtkTextView *text_view;
2770 GtkTextIter first_para;
2772 GtkAdjustment *vadj;
2773 gboolean yoffset_changed = FALSE;
2775 GdkRectangle text_rect;
2776 GdkRectangle left_rect;
2777 GdkRectangle right_rect;
2778 GdkRectangle top_rect;
2779 GdkRectangle bottom_rect;
2780 gint focus_edge_width;
2782 gboolean interior_focus;
2783 gboolean size_changed;
2785 text_view = GTK_TEXT_VIEW (widget);
2787 DV(g_print(G_STRLOC"\n"));
2790 widget->allocation.width != allocation->width ||
2791 widget->allocation.height != allocation->height;
2793 widget->allocation = *allocation;
2795 if (GTK_WIDGET_REALIZED (widget))
2797 gdk_window_move_resize (widget->window,
2798 allocation->x, allocation->y,
2799 allocation->width, allocation->height);
2802 /* distribute width/height among child windows. Ensure all
2803 * windows get at least a 1x1 allocation.
2806 gtk_widget_style_get (widget,
2807 "interior_focus", &interior_focus,
2808 "focus_line_width", &focus_width,
2812 focus_edge_width = 0;
2814 focus_edge_width = focus_width;
2816 width = allocation->width - focus_edge_width * 2 - GTK_CONTAINER (text_view)->border_width * 2;
2818 if (text_view->left_window)
2819 left_rect.width = text_view->left_window->requisition.width;
2821 left_rect.width = 0;
2823 width -= left_rect.width;
2825 if (text_view->right_window)
2826 right_rect.width = text_view->right_window->requisition.width;
2828 right_rect.width = 0;
2830 width -= right_rect.width;
2832 text_rect.width = MAX (1, width);
2834 top_rect.width = text_rect.width;
2835 bottom_rect.width = text_rect.width;
2838 height = allocation->height - focus_edge_width * 2 - GTK_CONTAINER (text_view)->border_width * 2;
2840 if (text_view->top_window)
2841 top_rect.height = text_view->top_window->requisition.height;
2843 top_rect.height = 0;
2845 height -= top_rect.height;
2847 if (text_view->bottom_window)
2848 bottom_rect.height = text_view->bottom_window->requisition.height;
2850 bottom_rect.height = 0;
2852 height -= bottom_rect.height;
2854 text_rect.height = MAX (1, height);
2856 left_rect.height = text_rect.height;
2857 right_rect.height = text_rect.height;
2860 left_rect.x = focus_edge_width + GTK_CONTAINER (text_view)->border_width;
2861 top_rect.y = focus_edge_width + GTK_CONTAINER (text_view)->border_width;
2863 text_rect.x = left_rect.x + left_rect.width;
2864 text_rect.y = top_rect.y + top_rect.height;
2866 left_rect.y = text_rect.y;
2867 right_rect.y = text_rect.y;
2869 top_rect.x = text_rect.x;
2870 bottom_rect.x = text_rect.x;
2872 right_rect.x = text_rect.x + text_rect.width;
2873 bottom_rect.y = text_rect.y + text_rect.height;
2875 text_window_size_allocate (text_view->text_window,
2878 if (text_view->left_window)
2879 text_window_size_allocate (text_view->left_window,
2882 if (text_view->right_window)
2883 text_window_size_allocate (text_view->right_window,
2886 if (text_view->top_window)
2887 text_window_size_allocate (text_view->top_window,
2890 if (text_view->bottom_window)
2891 text_window_size_allocate (text_view->bottom_window,
2894 gtk_text_view_update_layout_width (text_view);
2896 /* Note that this will do some layout validation */
2897 gtk_text_view_allocate_children (text_view);
2899 /* Now adjust the value of the adjustment to keep the cursor at the
2900 * same place in the buffer
2902 gtk_text_view_get_first_para_iter (text_view, &first_para);
2903 gtk_text_layout_get_line_yrange (text_view->layout, &first_para, &y, NULL);
2905 y += text_view->first_para_pixels;
2907 /* Ensure h/v adj exist */
2908 get_hadjustment (text_view);
2909 get_vadjustment (text_view);
2911 vadj = text_view->vadjustment;
2912 if (y > vadj->upper - vadj->page_size)
2913 y = MAX (0, vadj->upper - vadj->page_size);
2915 if (y != text_view->yoffset)
2917 vadj->value = text_view->yoffset = y;
2918 yoffset_changed = TRUE;
2921 text_view->hadjustment->page_size = SCREEN_WIDTH (text_view);
2922 text_view->hadjustment->page_increment = SCREEN_WIDTH (text_view) * 0.9;
2923 text_view->hadjustment->step_increment = SCREEN_WIDTH (text_view) * 0.1;
2924 text_view->hadjustment->lower = 0;
2925 text_view->hadjustment->upper = MAX (SCREEN_WIDTH (text_view),
2927 gtk_signal_emit_by_name (GTK_OBJECT (text_view->hadjustment), "changed");
2929 text_view->vadjustment->page_size = SCREEN_HEIGHT (text_view);
2930 text_view->vadjustment->page_increment = SCREEN_HEIGHT (text_view) * 0.9;
2931 text_view->vadjustment->step_increment = SCREEN_HEIGHT (text_view) * 0.1;
2932 text_view->vadjustment->lower = 0;
2933 text_view->vadjustment->upper = MAX (SCREEN_HEIGHT (text_view),
2935 gtk_signal_emit_by_name (GTK_OBJECT (text_view->vadjustment), "changed");
2937 if (yoffset_changed)
2938 gtk_adjustment_value_changed (vadj);
2940 /* The GTK resize loop processes all the pending exposes right
2941 * after doing the resize stuff, so the idle sizer won't have a
2942 * chance to run. So we do the work here.
2944 gtk_text_view_flush_first_validate (text_view);
2946 /* widget->window doesn't get auto-redrawn as the layout is computed, so has to
2949 if (size_changed && GTK_WIDGET_REALIZED (widget))
2950 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
2954 gtk_text_view_get_first_para_iter (GtkTextView *text_view,
2957 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter,
2958 text_view->first_para_mark);
2962 gtk_text_view_validate_onscreen (GtkTextView *text_view)
2964 GtkWidget *widget = GTK_WIDGET (text_view);
2966 DV(g_print(">Validating onscreen ("G_STRLOC")\n"));
2968 if (SCREEN_HEIGHT (widget) > 0)
2970 GtkTextIter first_para;
2972 /* Be sure we've validated the stuff onscreen; if we
2973 * scrolled, these calls won't have any effect, because
2974 * they were called in the recursive validate_onscreen
2976 gtk_text_view_get_first_para_iter (text_view, &first_para);
2978 gtk_text_layout_validate_yrange (text_view->layout,
2981 text_view->first_para_pixels +
2982 SCREEN_HEIGHT (widget));
2985 text_view->onscreen_validated = TRUE;
2987 DV(g_print(">Done validating onscreen, onscreen_validated = TRUE ("G_STRLOC")\n"));
2989 /* This can have the odd side effect of triggering a scroll, which should
2990 * flip "onscreen_validated" back to FALSE, but should also get us
2991 * back into this function to turn it on again.
2993 gtk_text_view_update_adjustments (text_view);
2995 g_assert (text_view->onscreen_validated);
2999 gtk_text_view_flush_first_validate (GtkTextView *text_view)
3001 if (text_view->first_validate_idle == 0)
3004 /* Do this first, which means that if an "invalidate"
3005 * occurs during any of this process, a new first_validate_callback
3006 * will be installed, and we'll start again.
3008 DV (g_print ("removing first validate in %s\n", G_STRLOC));
3009 g_source_remove (text_view->first_validate_idle);
3010 text_view->first_validate_idle = 0;
3012 /* be sure we have up-to-date screen size set on the
3015 gtk_text_view_update_layout_width (text_view);
3017 /* Bail out if we invalidated stuff; scrolling right away will just
3018 * confuse the issue.
3020 if (text_view->first_validate_idle != 0)
3022 DV(g_print(">Width change forced requeue ("G_STRLOC")\n"));
3026 /* scroll to any marks, if that's pending. This can
3027 * jump us to the validation codepath used for scrolling
3028 * onscreen, if so we bail out.
3030 if (!gtk_text_view_flush_scroll (text_view))
3031 gtk_text_view_validate_onscreen (text_view);
3033 DV(g_print(">Leaving first validate idle ("G_STRLOC")\n"));
3035 g_assert (text_view->onscreen_validated);
3040 first_validate_callback (gpointer data)
3042 GtkTextView *text_view = data;
3044 GDK_THREADS_ENTER ();
3046 /* Note that some of this code is duplicated at the end of size_allocate,
3047 * keep in sync with that.
3050 DV(g_print(G_STRLOC"\n"));
3052 gtk_text_view_flush_first_validate (text_view);
3054 GDK_THREADS_LEAVE ();
3060 incremental_validate_callback (gpointer data)
3062 GtkTextView *text_view = data;
3063 gboolean result = TRUE;
3065 GDK_THREADS_ENTER ();
3067 DV(g_print(G_STRLOC"\n"));
3069 gtk_text_layout_validate (text_view->layout, 2000);
3071 gtk_text_view_update_adjustments (text_view);
3073 if (gtk_text_layout_is_valid (text_view->layout))
3075 text_view->incremental_validate_idle = 0;
3079 GDK_THREADS_LEAVE ();
3085 gtk_text_view_invalidate (GtkTextView *text_view)
3087 DV (g_print (">Invalidate, onscreen_validated = %d now FALSE ("G_STRLOC")\n",
3088 text_view->onscreen_validated));
3090 text_view->onscreen_validated = FALSE;
3092 if (!text_view->first_validate_idle)
3094 text_view->first_validate_idle = g_idle_add_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
3095 DV (g_print (G_STRLOC": adding first validate idle %d\n",
3096 text_view->first_validate_idle));
3099 if (!text_view->incremental_validate_idle)
3101 text_view->incremental_validate_idle = g_idle_add_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
3102 DV (g_print (G_STRLOC": adding incremental validate idle %d\n",
3103 text_view->incremental_validate_idle));
3108 invalidated_handler (GtkTextLayout *layout,
3111 GtkTextView *text_view;
3113 text_view = GTK_TEXT_VIEW (data);
3115 DV (g_print ("Invalidating due to layout invalidate signal\n"));
3116 gtk_text_view_invalidate (text_view);
3120 changed_handler (GtkTextLayout *layout,
3126 GtkTextView *text_view;
3128 GdkRectangle visible_rect;
3129 GdkRectangle redraw_rect;
3131 text_view = GTK_TEXT_VIEW (data);
3132 widget = GTK_WIDGET (data);
3134 DV(g_print(">Lines Validated ("G_STRLOC")\n"));
3136 if (GTK_WIDGET_REALIZED (text_view))
3138 gtk_text_view_get_visible_rect (text_view, &visible_rect);
3140 redraw_rect.x = visible_rect.x;
3141 redraw_rect.width = visible_rect.width;
3142 redraw_rect.y = start_y;
3144 if (old_height == new_height)
3145 redraw_rect.height = old_height;
3147 redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y);
3149 if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect))
3151 /* text_window_invalidate_rect() takes buffer coordinates */
3152 text_window_invalidate_rect (text_view->text_window,
3155 DV(g_print(" invalidated rect: %d,%d %d x %d\n",
3159 redraw_rect.height));
3161 if (text_view->left_window)
3162 text_window_invalidate_rect (text_view->left_window,
3164 if (text_view->right_window)
3165 text_window_invalidate_rect (text_view->right_window,
3167 if (text_view->top_window)
3168 text_window_invalidate_rect (text_view->top_window,
3170 if (text_view->bottom_window)
3171 text_window_invalidate_rect (text_view->bottom_window,
3174 gtk_text_view_update_im_spot_location (text_view);
3178 if (old_height != new_height)
3180 gboolean yoffset_changed = FALSE;
3182 int new_first_para_top;
3183 int old_first_para_top;
3186 /* If the bottom of the old area was above the top of the
3187 * screen, we need to scroll to keep the current top of the
3188 * screen in place. Remember that first_para_pixels is the
3189 * position of the top of the screen in coordinates relative to
3190 * the first paragraph onscreen.
3192 * In short we are adding the height delta of the portion of the
3193 * changed region above first_para_mark to text_view->yoffset.
3195 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first,
3196 text_view->first_para_mark);
3198 gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL);
3200 old_first_para_top = text_view->yoffset - text_view->first_para_pixels;
3202 if (new_first_para_top != old_first_para_top)
3204 text_view->yoffset += new_first_para_top - old_first_para_top;
3206 get_vadjustment (text_view)->value = text_view->yoffset;
3207 yoffset_changed = TRUE;
3210 if (yoffset_changed)
3212 DV(g_print ("Changing scroll position (%s)\n", G_STRLOC));
3213 gtk_adjustment_value_changed (get_vadjustment (text_view));
3216 /* FIXME be smarter about which anchored widgets we update */
3218 tmp_list = text_view->children;
3219 while (tmp_list != NULL)
3221 GtkTextViewChild *child = tmp_list->data;
3224 gtk_text_view_update_child_allocation (text_view, child);
3226 tmp_list = g_slist_next (tmp_list);
3231 GtkRequisition old_req;
3232 GtkRequisition new_req;
3234 old_req = widget->requisition;
3236 /* Use this instead of gtk_widget_size_request wrapper
3237 * to avoid the optimization which just returns widget->requisition
3238 * if a resize hasn't been queued.
3240 GTK_WIDGET_GET_CLASS (widget)->size_request (widget, &new_req);
3242 if (old_req.width != new_req.width ||
3243 old_req.height != new_req.height)
3245 /* FIXME http://bugzilla.gnome.org/show_bug.cgi?id=72258 */
3246 _gtk_size_group_queue_resize (widget);
3252 gtk_text_view_realize_cursor_gc (GtkTextView *text_view)
3254 GdkColor *cursor_color;
3255 GdkColor red = { 0, 0xffff, 0x0000, 0x0000 };
3257 if (text_view->cursor_gc)
3258 gdk_gc_unref (text_view->cursor_gc);
3260 gtk_widget_style_get (GTK_WIDGET (text_view), "cursor-color", &cursor_color, NULL);
3263 cursor_color = &red;
3265 text_view->cursor_gc = gdk_gc_new (text_view->text_window->bin_window);
3266 gdk_gc_set_rgb_fg_color (text_view->cursor_gc, cursor_color);
3270 gtk_text_view_realize (GtkWidget *widget)
3272 GtkTextView *text_view;
3273 GdkWindowAttr attributes;
3274 gint attributes_mask;
3277 text_view = GTK_TEXT_VIEW (widget);
3278 GTK_WIDGET_SET_FLAGS (text_view, GTK_REALIZED);
3280 attributes.window_type = GDK_WINDOW_CHILD;
3281 attributes.x = widget->allocation.x;
3282 attributes.y = widget->allocation.y;
3283 attributes.width = widget->allocation.width;
3284 attributes.height = widget->allocation.height;
3285 attributes.wclass = GDK_INPUT_OUTPUT;
3286 attributes.visual = gtk_widget_get_visual (widget);
3287 attributes.colormap = gtk_widget_get_colormap (widget);
3288 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK;
3290 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3292 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
3293 &attributes, attributes_mask);
3294 gdk_window_set_user_data (widget->window, widget);
3296 /* must come before text_window_realize calls */
3297 widget->style = gtk_style_attach (widget->style, widget->window);
3299 gdk_window_set_background (widget->window,
3300 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3302 text_window_realize (text_view->text_window, widget->window);
3304 if (text_view->left_window)
3305 text_window_realize (text_view->left_window,
3308 if (text_view->top_window)
3309 text_window_realize (text_view->top_window,
3312 if (text_view->right_window)
3313 text_window_realize (text_view->right_window,
3316 if (text_view->bottom_window)
3317 text_window_realize (text_view->bottom_window,
3320 gtk_text_view_realize_cursor_gc (text_view);
3322 gtk_text_view_ensure_layout (text_view);
3324 if (text_view->buffer)
3325 gtk_text_buffer_add_selection_clipboard (text_view->buffer,
3326 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
3328 tmp_list = text_view->children;
3329 while (tmp_list != NULL)
3331 GtkTextViewChild *vc = tmp_list->data;
3333 text_view_child_set_parent_window (text_view, vc);
3335 tmp_list = tmp_list->next;
3340 gtk_text_view_unrealize (GtkWidget *widget)
3342 GtkTextView *text_view;
3344 text_view = GTK_TEXT_VIEW (widget);
3346 if (text_view->buffer)
3347 gtk_text_buffer_remove_selection_clipboard (text_view->buffer,
3348 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
3350 if (text_view->cursor_gc)
3352 gdk_gc_unref (text_view->cursor_gc);
3353 text_view->cursor_gc = NULL;
3356 gtk_text_view_remove_validate_idles (text_view);
3358 if (text_view->popup_menu)
3360 gtk_widget_destroy (text_view->popup_menu);
3361 text_view->popup_menu = NULL;
3364 text_window_unrealize (text_view->text_window);
3366 if (text_view->left_window)
3367 text_window_unrealize (text_view->left_window);
3369 if (text_view->top_window)
3370 text_window_unrealize (text_view->top_window);
3372 if (text_view->right_window)
3373 text_window_unrealize (text_view->right_window);
3375 if (text_view->bottom_window)
3376 text_window_unrealize (text_view->bottom_window);
3378 gtk_text_view_destroy_layout (text_view);
3380 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
3384 gtk_text_view_style_set (GtkWidget *widget,
3385 GtkStyle *previous_style)
3387 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3389 if (GTK_WIDGET_REALIZED (widget))
3391 gdk_window_set_background (widget->window,
3392 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3394 gdk_window_set_background (text_view->text_window->bin_window,
3395 &widget->style->base[GTK_WIDGET_STATE (widget)]);
3397 if (text_view->left_window)
3398 gdk_window_set_background (text_view->left_window->bin_window,
3399 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3400 if (text_view->right_window)
3401 gdk_window_set_background (text_view->right_window->bin_window,
3402 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3404 if (text_view->top_window)
3405 gdk_window_set_background (text_view->top_window->bin_window,
3406 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3408 if (text_view->bottom_window)
3409 gdk_window_set_background (text_view->bottom_window->bin_window,
3410 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3412 gtk_text_view_realize_cursor_gc (text_view);
3415 if (text_view->layout && previous_style)
3417 gtk_text_view_set_attributes_from_style (text_view,
3418 text_view->layout->default_style,
3420 gtk_text_layout_default_style_changed (text_view->layout);
3425 gtk_text_view_direction_changed (GtkWidget *widget,
3426 GtkTextDirection previous_direction)
3428 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3430 if (text_view->layout)
3432 text_view->layout->default_style->direction = gtk_widget_get_direction (widget);
3433 gtk_text_layout_default_style_changed (text_view->layout);
3439 set_invisible_cursor (GdkWindow *window)
3441 GdkBitmap *empty_bitmap;
3444 char invisible_cursor_bits[] = { 0x0 };
3446 useless.red = useless.green = useless.blue = 0;
3449 empty_bitmap = gdk_bitmap_create_from_data (window,
3450 invisible_cursor_bits,
3453 cursor = gdk_cursor_new_from_pixmap (empty_bitmap,
3458 gdk_window_set_cursor (window, cursor);
3460 gdk_cursor_unref (cursor);
3462 g_object_unref (empty_bitmap);
3466 gtk_text_view_obscure_mouse_cursor (GtkTextView *text_view)
3468 if (text_view->mouse_cursor_obscured)
3471 set_invisible_cursor (text_view->text_window->bin_window);
3473 text_view->mouse_cursor_obscured = TRUE;
3481 get_event_coordinates (GdkEvent *event, gint *x, gint *y)
3484 switch (event->type)
3486 case GDK_MOTION_NOTIFY:
3487 *x = event->motion.x;
3488 *y = event->motion.y;
3492 case GDK_BUTTON_PRESS:
3493 case GDK_2BUTTON_PRESS:
3494 case GDK_3BUTTON_PRESS:
3495 case GDK_BUTTON_RELEASE:
3496 *x = event->button.x;
3497 *y = event->button.y;
3502 case GDK_KEY_RELEASE:
3503 case GDK_ENTER_NOTIFY:
3504 case GDK_LEAVE_NOTIFY:
3505 case GDK_PROPERTY_NOTIFY:
3506 case GDK_SELECTION_CLEAR:
3507 case GDK_SELECTION_REQUEST:
3508 case GDK_SELECTION_NOTIFY:
3509 case GDK_PROXIMITY_IN:
3510 case GDK_PROXIMITY_OUT:
3511 case GDK_DRAG_ENTER:
3512 case GDK_DRAG_LEAVE:
3513 case GDK_DRAG_MOTION:
3514 case GDK_DRAG_STATUS:
3515 case GDK_DROP_START:
3516 case GDK_DROP_FINISHED:
3526 emit_event_on_tags (GtkWidget *widget,
3532 gboolean retval = FALSE;
3533 GtkTextView *text_view;
3535 text_view = GTK_TEXT_VIEW (widget);
3537 tags = gtk_text_iter_get_tags (iter);
3542 GtkTextTag *tag = tmp->data;
3544 if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter))
3550 tmp = g_slist_next (tmp);
3553 g_slist_free (tags);
3559 gtk_text_view_event (GtkWidget *widget, GdkEvent *event)
3561 GtkTextView *text_view;
3564 text_view = GTK_TEXT_VIEW (widget);
3566 if (text_view->layout == NULL ||
3567 get_buffer (text_view) == NULL)
3570 if (event->any.window != text_view->text_window->bin_window)
3573 if (get_event_coordinates (event, &x, &y))
3577 x += text_view->xoffset;
3578 y += text_view->yoffset;
3580 /* FIXME this is slow and we do it twice per event.
3581 * My favorite solution is to have GtkTextLayout cache
3582 * the last couple lookups.
3584 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3588 return emit_event_on_tags (widget, event, &iter);
3590 else if (event->type == GDK_KEY_PRESS ||
3591 event->type == GDK_KEY_RELEASE)
3593 GtkTextMark *insert;
3596 insert = gtk_text_buffer_get_mark (get_buffer (text_view),
3599 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3601 return emit_event_on_tags (widget, event, &iter);
3608 gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
3610 gboolean retval = FALSE;
3611 gboolean obscure = FALSE;
3612 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3613 GtkTextMark *insert;
3616 if (text_view->layout == NULL ||
3617 get_buffer (text_view) == NULL)
3620 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
3621 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3622 if (gtk_text_iter_can_insert (&iter, text_view->editable) &&
3623 gtk_im_context_filter_keypress (text_view->im_context, event))
3625 text_view->need_im_reset = TRUE;
3629 else if (GTK_WIDGET_CLASS (parent_class)->key_press_event &&
3630 GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
3632 else if (event->keyval == GDK_Return ||
3633 event->keyval == GDK_KP_Enter)
3635 gtk_text_view_commit_text (text_view, "\n");
3640 /* Pass through Tab as literal tab, unless Control is held down */
3641 else if ((event->keyval == GDK_Tab ||
3642 event->keyval == GDK_KP_Tab) &&
3643 !(event->state & GDK_CONTROL_MASK))
3645 /* If the text isn't editable, move the focus instead */
3646 if (text_view->editable)
3648 gtk_text_view_commit_text (text_view, "\t");
3652 gtk_text_view_move_focus (text_view,
3653 (event->state & GDK_SHIFT_MASK) ?
3654 GTK_DIR_TAB_BACKWARD: GTK_DIR_TAB_FORWARD);
3662 gtk_text_view_obscure_mouse_cursor (text_view);
3664 gtk_text_view_pend_cursor_blink (text_view);
3670 gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
3672 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3673 GtkTextMark *insert;
3676 if (text_view->layout == NULL || get_buffer (text_view) == NULL)
3679 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
3680 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3681 if (gtk_text_iter_can_insert (&iter, text_view->editable) &&
3682 gtk_im_context_filter_keypress (text_view->im_context, event))
3684 text_view->need_im_reset = TRUE;
3688 return GTK_WIDGET_CLASS (parent_class)->key_release_event (widget, event);
3692 gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
3694 GtkTextView *text_view;
3696 text_view = GTK_TEXT_VIEW (widget);
3698 text_view->disable_scroll_on_focus = TRUE;
3699 gtk_widget_grab_focus (widget);
3700 text_view->disable_scroll_on_focus = FALSE;
3702 if (event->window != text_view->text_window->bin_window)
3704 /* Remove selection if any. */
3705 gtk_text_view_unselect (text_view);
3711 if (event->button == 3 && (event->state & GDK_CONTROL_MASK) != 0)
3712 _gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer);
3713 else if (event->button == 3)
3714 gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout);
3717 if (event->type == GDK_BUTTON_PRESS)
3719 gtk_text_view_reset_im_context (text_view);
3721 if (event->button == 1)
3723 /* If we're in the selection, start a drag copy/move of the
3724 * selection; otherwise, start creating a new selection.
3727 GtkTextIter start, end;
3729 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3731 event->x + text_view->xoffset,
3732 event->y + text_view->yoffset);
3734 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
3736 gtk_text_iter_in_range (&iter, &start, &end))
3738 text_view->drag_start_x = event->x;
3739 text_view->drag_start_y = event->y;
3740 text_view->pending_place_cursor_button = event->button;
3744 gtk_text_view_start_selection_drag (text_view, &iter, event);
3749 else if (event->button == 2)
3753 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3755 event->x + text_view->xoffset,
3756 event->y + text_view->yoffset);
3758 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
3759 gtk_clipboard_get (GDK_SELECTION_PRIMARY),
3761 text_view->editable);
3764 else if (event->button == 3)
3766 gtk_text_view_do_popup (text_view, event);
3769 else if ((event->type == GDK_2BUTTON_PRESS ||
3770 event->type == GDK_3BUTTON_PRESS) &&
3773 GtkTextIter start, end;
3775 /* End the selection drag, otherwise we'd clear the new
3776 * word/line selection on button release
3778 gtk_text_view_end_selection_drag (text_view, event);
3780 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3782 event->x + text_view->xoffset,
3783 event->y + text_view->yoffset);
3787 if (event->type == GDK_2BUTTON_PRESS)
3789 if (gtk_text_iter_inside_word (&start))
3791 if (!gtk_text_iter_starts_word (&start))
3792 gtk_text_iter_backward_word_start (&start);
3794 if (!gtk_text_iter_ends_word (&end))
3795 gtk_text_iter_forward_word_end (&end);
3798 else if (event->type == GDK_3BUTTON_PRESS)
3800 if (gtk_text_view_starts_display_line (text_view, &start))
3802 /* If on a display line boundary, we assume the user
3803 * clicked off the end of a line and we therefore select
3804 * the line before the boundary.
3806 gtk_text_view_backward_display_line_start (text_view, &start);
3810 /* start isn't on the start of a line, so we move it to the
3811 * start, and move end to the end unless it's already there.
3813 gtk_text_view_backward_display_line_start (text_view, &start);
3815 if (!gtk_text_view_starts_display_line (text_view, &end))
3816 gtk_text_view_forward_display_line_end (text_view, &end);
3820 if (event->state & GDK_SHIFT_MASK)
3822 /* Take union of old and new selection */
3823 GtkTextIter old_start, old_end;
3825 gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
3826 &old_start, &old_end);
3828 gtk_text_iter_order (&start, &old_start);
3829 gtk_text_iter_order (&old_end, &end);
3831 /* Now start is the first of the starts, and end is the
3836 gtk_text_buffer_move_mark_by_name (get_buffer (text_view),
3839 gtk_text_buffer_move_mark_by_name (get_buffer (text_view),
3843 text_view->just_selected_element = TRUE;
3852 gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
3854 GtkTextView *text_view;
3856 text_view = GTK_TEXT_VIEW (widget);
3858 if (event->window != text_view->text_window->bin_window)
3861 if (event->button == 1)
3863 if (text_view->drag_start_x >= 0)
3865 text_view->drag_start_x = -1;
3866 text_view->drag_start_y = -1;
3869 if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget), event))
3871 else if (text_view->just_selected_element)
3873 text_view->just_selected_element = FALSE;
3876 else if (text_view->pending_place_cursor_button == event->button)
3880 /* Unselect everything; we clicked inside selection, but
3881 * didn't move by the drag threshold, so just clear selection
3884 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3886 event->x + text_view->xoffset,
3887 event->y + text_view->yoffset);
3889 gtk_text_buffer_place_cursor (get_buffer (text_view), &iter);
3891 text_view->pending_place_cursor_button = 0;
3901 keymap_direction_changed (GdkKeymap *keymap,
3902 GtkTextView *text_view)
3904 gtk_text_view_check_keymap_direction (text_view);
3908 gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
3910 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3912 gtk_widget_queue_draw (widget);
3914 DV(g_print (G_STRLOC": focus_in_event\n"));
3916 if (text_view->cursor_visible && text_view->layout)
3918 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
3919 gtk_text_view_check_cursor_blink (text_view);
3922 g_signal_connect (gdk_keymap_get_default (),
3923 "direction_changed",
3924 G_CALLBACK (keymap_direction_changed), text_view);
3925 gtk_text_view_check_keymap_direction (text_view);
3927 text_view->need_im_reset = TRUE;
3928 gtk_im_context_focus_in (GTK_TEXT_VIEW (widget)->im_context);
3934 gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event)
3936 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3938 gtk_widget_queue_draw (widget);
3940 DV(g_print (G_STRLOC": focus_out_event\n"));
3942 if (text_view->cursor_visible && text_view->layout)
3944 gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
3945 gtk_text_view_check_cursor_blink (text_view);
3948 g_signal_handlers_disconnect_by_func (gdk_keymap_get_default (),
3949 keymap_direction_changed,
3952 text_view->need_im_reset = TRUE;
3953 gtk_im_context_focus_out (GTK_TEXT_VIEW (widget)->im_context);
3959 gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event)
3961 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3963 if (text_view->mouse_cursor_obscured)
3967 cursor = gdk_cursor_new (GDK_XTERM);
3968 gdk_window_set_cursor (text_view->text_window->bin_window, cursor);
3969 gdk_cursor_unref (cursor);
3970 text_view->mouse_cursor_obscured = FALSE;
3973 if (event->window == text_view->text_window->bin_window &&
3974 text_view->drag_start_x >= 0)
3978 gdk_window_get_pointer (text_view->text_window->bin_window,
3981 if (gtk_drag_check_threshold (widget,
3982 text_view->drag_start_x,
3983 text_view->drag_start_y,
3987 gint buffer_x, buffer_y;
3989 gtk_text_view_window_to_buffer_coords (text_view,
3990 GTK_TEXT_WINDOW_TEXT,
3991 text_view->drag_start_x,
3992 text_view->drag_start_y,
3996 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3998 buffer_x, buffer_y);
4000 gtk_text_view_start_selection_dnd (text_view, &iter, event);
4009 gtk_text_view_paint (GtkWidget *widget,
4011 GdkEventExpose *event)
4013 GtkTextView *text_view;
4014 GList *child_exposes;
4018 text_view = GTK_TEXT_VIEW (widget);
4020 g_return_if_fail (text_view->layout != NULL);
4021 g_return_if_fail (text_view->xoffset >= 0);
4022 g_return_if_fail (text_view->yoffset >= 0);
4024 while (text_view->first_validate_idle != 0)
4026 DV (g_print (G_STRLOC": first_validate_idle: %d\n",
4027 text_view->first_validate_idle));
4028 gtk_text_view_flush_first_validate (text_view);
4031 /* More regions could have become invalid in the above loop */
4032 updates = gdk_window_get_update_area (text_view->text_window->bin_window);
4037 gdk_region_get_clipbox (updates, &rect);
4039 gdk_rectangle_union (area, &rect, area);
4041 gdk_region_destroy (updates);
4044 if (!text_view->onscreen_validated)
4046 g_warning (G_STRLOC ": somehow some text lines were modified or scrolling occurred since the last validation of lines on the screen - may be a text widget bug.");
4051 printf ("painting %d,%d %d x %d\n",
4053 area->width, area->height);
4056 child_exposes = NULL;
4057 gtk_text_layout_draw (text_view->layout,
4059 text_view->text_window->bin_window,
4060 text_view->cursor_gc,
4064 area->width, area->height,
4067 tmp_list = child_exposes;
4068 while (tmp_list != NULL)
4070 GtkWidget *child = tmp_list->data;
4072 gtk_container_propagate_expose (GTK_CONTAINER (text_view),
4076 g_object_unref (G_OBJECT (child));
4078 tmp_list = tmp_list->next;
4081 g_list_free (child_exposes);
4085 gtk_text_view_expose_event (GtkWidget *widget, GdkEventExpose *event)
4089 if (event->window == gtk_text_view_get_window (GTK_TEXT_VIEW (widget),
4090 GTK_TEXT_WINDOW_TEXT))
4092 DV(g_print (">Exposed ("G_STRLOC")\n"));
4093 gtk_text_view_paint (widget, &event->area, event);
4096 if (event->window == widget->window)
4097 gtk_text_view_draw_focus (widget);
4099 /* Propagate exposes to all children not in the buffer. */
4100 tmp_list = GTK_TEXT_VIEW (widget)->children;
4101 while (tmp_list != NULL)
4103 GtkTextViewChild *vc = tmp_list->data;
4105 /* propagate_expose checks that event->window matches
4108 if (vc->type != GTK_TEXT_WINDOW_TEXT)
4109 gtk_container_propagate_expose (GTK_CONTAINER (widget),
4113 tmp_list = tmp_list->next;
4120 gtk_text_view_draw_focus (GtkWidget *widget)
4122 gboolean interior_focus;
4124 /* We clear the focus if we are in interior focus mode. */
4125 gtk_widget_style_get (widget,
4126 "interior_focus", &interior_focus,
4129 if (GTK_WIDGET_DRAWABLE (widget))
4131 if (GTK_WIDGET_HAS_FOCUS (widget) && !interior_focus)
4133 gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
4134 NULL, widget, "textview",
4136 widget->allocation.width,
4137 widget->allocation.height);
4141 gdk_window_clear (widget->window);
4147 gtk_text_view_grab_focus (GtkWidget *widget)
4149 GtkTextView *text_view;
4151 text_view = GTK_TEXT_VIEW (widget);
4153 GTK_WIDGET_CLASS (parent_class)->grab_focus (widget);
4155 if (!text_view->disable_scroll_on_focus)
4156 gtk_text_view_scroll_mark_onscreen (text_view,
4157 gtk_text_buffer_get_mark (get_buffer (text_view),
4162 gtk_text_view_focus (GtkWidget *widget,
4163 GtkDirectionType direction)
4165 GtkTextView *text_view;
4166 GtkContainer *container;
4168 text_view = GTK_TEXT_VIEW (widget);
4169 container = GTK_CONTAINER (widget);
4171 return GTK_WIDGET_CLASS (parent_class)->focus (widget, direction);
4179 gtk_text_view_add (GtkContainer *container,
4182 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
4183 g_return_if_fail (GTK_IS_WIDGET (child));
4185 /* This is pretty random. */
4186 gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container),
4188 GTK_TEXT_WINDOW_WIDGET,
4193 gtk_text_view_remove (GtkContainer *container,
4197 GtkTextView *text_view;
4198 GtkTextViewChild *vc;
4200 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
4201 g_return_if_fail (GTK_IS_WIDGET (child));
4202 g_return_if_fail (child->parent == (GtkWidget*) container);
4204 text_view = GTK_TEXT_VIEW (container);
4207 iter = text_view->children;
4209 while (iter != NULL)
4213 if (vc->widget == child)
4216 iter = g_slist_next (iter);
4219 g_assert (iter != NULL); /* be sure we had the child in the list */
4221 text_view->children = g_slist_remove (text_view->children, vc);
4223 gtk_widget_unparent (vc->widget);
4225 text_view_child_free (vc);
4229 gtk_text_view_forall (GtkContainer *container,
4230 gboolean include_internals,
4231 GtkCallback callback,
4232 gpointer callback_data)
4235 GtkTextView *text_view;
4238 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
4239 g_return_if_fail (callback != NULL);
4241 text_view = GTK_TEXT_VIEW (container);
4243 copy = g_slist_copy (text_view->children);
4246 while (iter != NULL)
4248 GtkTextViewChild *vc = iter->data;
4250 (* callback) (vc->widget, callback_data);
4252 iter = g_slist_next (iter);
4255 g_slist_free (copy);
4258 #define CURSOR_ON_MULTIPLIER 0.66
4259 #define CURSOR_OFF_MULTIPLIER 0.34
4260 #define CURSOR_PEND_MULTIPLIER 1.0
4263 cursor_blinks (GtkTextView *text_view)
4265 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
4268 #ifdef DEBUG_VALIDATION_AND_SCROLLING
4271 if (gtk_debug_flags & GTK_DEBUG_UPDATES)
4274 g_object_get (G_OBJECT (settings), "gtk-cursor-blink", &blink, NULL);
4279 get_cursor_time (GtkTextView *text_view)
4281 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
4284 g_object_get (G_OBJECT (settings), "gtk-cursor-blink-time", &time, NULL);
4294 blink_cb (gpointer data)
4296 GtkTextView *text_view;
4299 GDK_THREADS_ENTER ();
4301 text_view = GTK_TEXT_VIEW (data);
4303 g_assert (text_view->layout);
4304 g_assert (GTK_WIDGET_HAS_FOCUS (text_view));
4305 g_assert (text_view->cursor_visible);
4307 visible = gtk_text_layout_get_cursor_visible (text_view->layout);
4310 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
4314 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER,
4318 gtk_text_layout_set_cursor_visible (text_view->layout,
4321 GDK_THREADS_LEAVE ();
4323 /* Remove ourselves */
4329 gtk_text_view_stop_cursor_blink (GtkTextView *text_view)
4331 if (text_view->blink_timeout)
4333 gtk_timeout_remove (text_view->blink_timeout);
4334 text_view->blink_timeout = 0;
4339 gtk_text_view_check_cursor_blink (GtkTextView *text_view)
4341 if (text_view->layout != NULL &&
4342 text_view->cursor_visible &&
4343 GTK_WIDGET_HAS_FOCUS (text_view))
4345 if (cursor_blinks (text_view))
4347 if (text_view->blink_timeout == 0)
4349 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
4351 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
4357 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
4361 gtk_text_view_stop_cursor_blink (text_view);
4366 gtk_text_view_pend_cursor_blink(GtkTextView *text_view)
4368 if (text_view->layout != NULL &&
4369 text_view->cursor_visible &&
4370 GTK_WIDGET_HAS_FOCUS (text_view) &&
4371 cursor_blinks (text_view))
4373 if (text_view->blink_timeout != 0)
4375 gtk_timeout_remove (text_view->blink_timeout);
4376 text_view->blink_timeout = 0;
4379 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
4381 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER,
4389 * Key binding handlers
4393 gtk_text_view_move_iter_by_lines (GtkTextView *text_view,
4394 GtkTextIter *newplace,
4399 gtk_text_layout_move_iter_to_previous_line (text_view->layout, newplace);
4405 gtk_text_layout_move_iter_to_next_line (text_view->layout, newplace);
4410 /* FIXME when we are unfrozen and can change GtkMovementStep,
4413 #define PAGE_HORIZONTALLY_HACK_VALUE 57
4416 gtk_text_view_move_cursor_internal (GtkTextView *text_view,
4417 GtkMovementStep step,
4419 gboolean extend_selection)
4422 GtkTextIter newplace;
4424 gint cursor_x_pos = 0;
4426 gtk_text_view_reset_im_context (text_view);
4428 if (step == GTK_MOVEMENT_PAGES)
4430 gtk_text_view_scroll_pages (text_view, count);
4431 gtk_text_view_pend_cursor_blink (text_view);
4434 else if (step == PAGE_HORIZONTALLY_HACK_VALUE)
4436 gtk_text_view_scroll_hpages (text_view, count);
4437 gtk_text_view_pend_cursor_blink (text_view);
4441 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
4442 gtk_text_buffer_get_mark (get_buffer (text_view),
4446 if (step == GTK_MOVEMENT_DISPLAY_LINES)
4447 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, NULL);
4451 case GTK_MOVEMENT_LOGICAL_POSITIONS:
4452 gtk_text_iter_forward_cursor_positions (&newplace, count);
4455 case GTK_MOVEMENT_VISUAL_POSITIONS:
4456 gtk_text_layout_move_iter_visually (text_view->layout,
4460 case GTK_MOVEMENT_WORDS:
4462 gtk_text_iter_backward_word_starts (&newplace, -count);
4464 gtk_text_iter_forward_word_ends (&newplace, count);
4467 case GTK_MOVEMENT_DISPLAY_LINES:
4468 gtk_text_view_move_iter_by_lines (text_view, &newplace, count);
4469 gtk_text_layout_move_iter_to_x (text_view->layout, &newplace, cursor_x_pos);
4472 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
4474 gtk_text_view_move_iter_by_lines (text_view, &newplace, --count);
4475 else if (count < -1)
4476 gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count);
4479 gtk_text_layout_move_iter_to_line_end (text_view->layout, &newplace, count);
4482 case GTK_MOVEMENT_PARAGRAPHS:
4485 if (!gtk_text_iter_ends_line (&newplace))
4487 gtk_text_iter_forward_to_line_end (&newplace);
4493 if (gtk_text_iter_get_line_offset (&newplace) > 0)
4495 gtk_text_iter_set_line_offset (&newplace, 0);
4502 gtk_text_iter_forward_lines (&newplace, count);
4503 gtk_text_iter_set_line_offset (&newplace, 0);
4507 case GTK_MOVEMENT_PARAGRAPH_ENDS:
4510 if (!gtk_text_iter_ends_line (&newplace))
4511 gtk_text_iter_forward_to_line_end (&newplace);
4515 gtk_text_iter_set_line_offset (&newplace, 0);
4519 case GTK_MOVEMENT_BUFFER_ENDS:
4521 gtk_text_buffer_get_end_iter (get_buffer (text_view), &newplace);
4523 gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0);
4530 if (!gtk_text_iter_equal (&insert, &newplace))
4532 if (extend_selection)
4533 gtk_text_buffer_move_mark (get_buffer (text_view),
4534 gtk_text_buffer_get_mark (get_buffer (text_view),
4538 gtk_text_buffer_place_cursor (get_buffer (text_view), &newplace);
4540 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4541 gtk_text_view_scroll_mark_onscreen (text_view,
4542 gtk_text_buffer_get_mark (get_buffer (text_view),
4545 if (step == GTK_MOVEMENT_DISPLAY_LINES)
4547 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
4551 gtk_text_view_pend_cursor_blink (text_view);
4555 gtk_text_view_move_cursor (GtkTextView *text_view,
4556 GtkMovementStep step,
4558 gboolean extend_selection)
4560 gtk_text_view_move_cursor_internal (text_view, step, count, extend_selection);
4564 gtk_text_view_page_horizontally (GtkTextView *text_view,
4566 gboolean extend_selection)
4568 gtk_text_view_move_cursor_internal (text_view, PAGE_HORIZONTALLY_HACK_VALUE,
4569 count, extend_selection);
4573 gtk_text_view_set_anchor (GtkTextView *text_view)
4577 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
4578 gtk_text_buffer_get_mark (get_buffer (text_view),
4581 gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
4585 gtk_text_view_scroll_pages (GtkTextView *text_view,
4591 gint cursor_x_pos, cursor_y_pos;
4592 GtkTextIter new_insert;
4596 g_return_if_fail (text_view->vadjustment != NULL);
4598 adj = text_view->vadjustment;
4600 /* Validate the region that will be brought into view by the cursor motion
4604 gtk_text_view_get_first_para_iter (text_view, &anchor);
4605 y0 = adj->page_size;
4606 y1 = adj->page_size + count * adj->page_increment;
4610 gtk_text_view_get_first_para_iter (text_view, &anchor);
4611 y0 = count * adj->page_increment + adj->page_size;
4615 gtk_text_layout_validate_yrange (text_view->layout, &anchor, y0, y1);
4616 /* FIXME do we need to update the adjustment ranges here? */
4618 if (count < 0 && adj->value <= (adj->lower + 1e-12))
4620 /* already at top, just be sure we are at offset 0 */
4621 gtk_text_buffer_get_start_iter (get_buffer (text_view), &new_insert);
4622 gtk_text_buffer_place_cursor (get_buffer (text_view), &new_insert);
4624 else if (count > 0 && adj->value >= (adj->upper - adj->page_size - 1e-12))
4626 /* already at bottom, just be sure we are at the end */
4627 gtk_text_buffer_get_end_iter (get_buffer (text_view), &new_insert);
4628 gtk_text_buffer_place_cursor (get_buffer (text_view), &new_insert);
4632 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
4634 newval = adj->value;
4635 oldval = adj->value;
4637 newval += count * adj->page_increment;
4639 set_adjustment_clamped (adj, newval);
4640 cursor_y_pos += adj->value - oldval;
4642 gtk_text_layout_get_iter_at_pixel (text_view->layout, &new_insert, cursor_x_pos, cursor_y_pos);
4643 clamp_iter_onscreen (text_view, &new_insert);
4644 gtk_text_buffer_place_cursor (get_buffer (text_view), &new_insert);
4646 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
4649 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
4650 * only guarantees 1 pixel onscreen.
4652 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4653 gtk_text_view_scroll_mark_onscreen (text_view,
4654 gtk_text_buffer_get_mark (get_buffer (text_view),
4659 gtk_text_view_scroll_hpages (GtkTextView *text_view,
4665 gint cursor_x_pos, cursor_y_pos;
4666 GtkTextIter new_insert;
4669 g_return_if_fail (text_view->hadjustment != NULL);
4671 adj = text_view->hadjustment;
4673 /* Validate the line that we're moving within.
4675 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
4677 gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
4678 gtk_text_layout_get_line_yrange (text_view->layout, &new_insert, &y, &height);
4679 gtk_text_layout_validate_yrange (text_view->layout, &new_insert, y, y + height);
4680 /* FIXME do we need to update the adjustment ranges here? */
4682 if (count < 0 && adj->value <= (adj->lower + 1e-12))
4684 /* already at far left, just be sure we are at offset 0 */
4685 gtk_text_iter_set_line_offset (&new_insert, 0);
4686 gtk_text_buffer_place_cursor (get_buffer (text_view), &new_insert);
4688 else if (count > 0 && adj->value >= (adj->upper - adj->page_size - 1e-12))
4690 /* already at far right, just be sure we are at the end */
4691 gtk_text_iter_forward_to_line_end (&new_insert);
4692 gtk_text_buffer_place_cursor (get_buffer (text_view), &new_insert);
4696 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
4698 newval = adj->value;
4699 oldval = adj->value;
4701 newval += count * adj->page_increment;
4703 set_adjustment_clamped (adj, newval);
4704 cursor_x_pos += adj->value - oldval;
4706 gtk_text_layout_get_iter_at_pixel (text_view->layout, &new_insert, cursor_x_pos, cursor_y_pos);
4707 clamp_iter_onscreen (text_view, &new_insert);
4708 gtk_text_buffer_place_cursor (get_buffer (text_view), &new_insert);
4710 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
4713 /* FIXME for lines shorter than the overall widget width, this results in a
4714 * "bounce" effect as we scroll to the right of the widget, then scroll
4715 * back to get the end of the line onscreen.
4716 * http://bugzilla.gnome.org/show_bug.cgi?id=68963
4719 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
4720 * only guarantees 1 pixel onscreen.
4722 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4723 gtk_text_view_scroll_mark_onscreen (text_view,
4724 gtk_text_buffer_get_mark (get_buffer (text_view),
4729 whitespace (gunichar ch, gpointer user_data)
4731 return (ch == ' ' || ch == '\t');
4735 not_whitespace (gunichar ch, gpointer user_data)
4737 return !whitespace (ch, user_data);
4741 find_whitepace_region (const GtkTextIter *center,
4742 GtkTextIter *start, GtkTextIter *end)
4747 if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL))
4748 gtk_text_iter_forward_char (start); /* we want the first whitespace... */
4749 if (whitespace (gtk_text_iter_get_char (end), NULL))
4750 gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL);
4752 return !gtk_text_iter_equal (start, end);
4756 gtk_text_view_insert_at_cursor (GtkTextView *text_view,
4759 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
4760 text_view->editable);
4764 gtk_text_view_delete_from_cursor (GtkTextView *text_view,
4771 gboolean leave_one = FALSE;
4773 gtk_text_view_reset_im_context (text_view);
4775 if (type == GTK_DELETE_CHARS)
4777 /* Char delete deletes the selection, if one exists */
4778 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
4779 text_view->editable))
4783 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
4785 gtk_text_buffer_get_mark (get_buffer (text_view),
4793 case GTK_DELETE_CHARS:
4794 gtk_text_iter_forward_cursor_positions (&end, count);
4797 case GTK_DELETE_WORD_ENDS:
4799 gtk_text_iter_forward_word_ends (&end, count);
4801 gtk_text_iter_backward_word_starts (&start, 0 - count);
4804 case GTK_DELETE_WORDS:
4807 case GTK_DELETE_DISPLAY_LINE_ENDS:
4810 case GTK_DELETE_DISPLAY_LINES:
4813 case GTK_DELETE_PARAGRAPH_ENDS:
4814 /* If we're already at a newline, we need to
4815 * simply delete that newline, instead of
4816 * moving to the next one.
4818 if (gtk_text_iter_ends_line (&end))
4820 gtk_text_iter_forward_line (&end);
4826 if (!gtk_text_iter_forward_to_line_end (&end))
4832 /* FIXME figure out what a negative count means
4836 case GTK_DELETE_PARAGRAPHS:
4839 gtk_text_iter_set_line_offset (&start, 0);
4840 gtk_text_iter_forward_to_line_end (&end);
4842 /* Do the lines beyond the first. */
4845 gtk_text_iter_forward_to_line_end (&end);
4851 /* FIXME negative count? */
4855 case GTK_DELETE_WHITESPACE:
4857 find_whitepace_region (&insert, &start, &end);
4865 if (!gtk_text_iter_equal (&start, &end))
4867 gtk_text_buffer_begin_user_action (get_buffer (text_view));
4869 if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end,
4870 text_view->editable))
4873 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view),
4875 text_view->editable);
4878 gtk_text_buffer_end_user_action (get_buffer (text_view));
4880 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4881 gtk_text_view_scroll_mark_onscreen (text_view,
4882 gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
4887 gtk_text_view_cut_clipboard (GtkTextView *text_view)
4889 gtk_text_buffer_cut_clipboard (get_buffer (text_view),
4890 gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
4891 text_view->editable);
4892 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4893 gtk_text_view_scroll_mark_onscreen (text_view,
4894 gtk_text_buffer_get_mark (get_buffer (text_view),
4899 gtk_text_view_copy_clipboard (GtkTextView *text_view)
4901 gtk_text_buffer_copy_clipboard (get_buffer (text_view),
4902 gtk_clipboard_get (GDK_SELECTION_CLIPBOARD));
4903 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4904 gtk_text_view_scroll_mark_onscreen (text_view,
4905 gtk_text_buffer_get_mark (get_buffer (text_view),
4910 gtk_text_view_paste_clipboard (GtkTextView *text_view)
4912 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
4913 gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
4915 text_view->editable);
4916 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4917 gtk_text_view_scroll_mark_onscreen (text_view,
4918 gtk_text_buffer_get_mark (get_buffer (text_view),
4923 gtk_text_view_toggle_overwrite (GtkTextView *text_view)
4925 text_view->overwrite_mode = !text_view->overwrite_mode;
4929 gtk_text_view_move_focus (GtkTextView *text_view,
4930 GtkDirectionType direction_type)
4932 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (text_view));
4934 if (!GTK_WIDGET_TOPLEVEL (toplevel))
4937 /* Propagate to toplevel */
4938 g_signal_emit_by_name (G_OBJECT (toplevel), "move_focus", direction_type);
4946 gtk_text_view_unselect (GtkTextView *text_view)
4950 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
4952 gtk_text_buffer_get_mark (get_buffer (text_view),
4955 gtk_text_buffer_move_mark (get_buffer (text_view),
4956 gtk_text_buffer_get_mark (get_buffer (text_view),
4962 move_mark_to_pointer_and_scroll (GtkTextView *text_view,
4963 const gchar *mark_name)
4966 GdkModifierType state;
4967 GtkTextIter newplace;
4969 /* DV(g_print (G_STRLOC": begin\n")); */
4971 gdk_window_get_pointer (text_view->text_window->bin_window,
4974 /* DV(g_print (G_STRLOC": get iter at pixel\n"); */
4975 gtk_text_layout_get_iter_at_pixel (text_view->layout,
4977 x + text_view->xoffset,
4978 y + text_view->yoffset);
4982 gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
4984 /* This may invalidate the layout */
4985 DV(g_print (G_STRLOC": move mark\n"));
4986 gtk_text_buffer_move_mark (get_buffer (text_view),
4990 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4991 gtk_text_view_scroll_mark_onscreen (text_view, mark);
4994 DV (g_print ("first validate idle leaving %s is %d\n",
4995 G_STRLOC, text_view->first_validate_idle));
4999 selection_scan_timeout (gpointer data)
5001 GtkTextView *text_view;
5003 GDK_THREADS_ENTER ();
5005 text_view = GTK_TEXT_VIEW (data);
5007 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
5008 move_mark_to_pointer_and_scroll (text_view, "insert");
5010 GDK_THREADS_LEAVE ();
5012 return TRUE; /* remain installed. */
5015 #define DND_SCROLL_MARGIN 0.20
5018 drag_scan_timeout (gpointer data)
5020 GtkTextView *text_view;
5022 GdkModifierType state;
5023 GtkTextIter newplace;
5025 GDK_THREADS_ENTER ();
5027 text_view = GTK_TEXT_VIEW (data);
5029 gdk_window_get_pointer (text_view->text_window->bin_window,
5032 gtk_text_layout_get_iter_at_pixel (text_view->layout,
5034 x + text_view->xoffset,
5035 y + text_view->yoffset);
5037 gtk_text_buffer_move_mark (get_buffer (text_view),
5038 text_view->dnd_mark,
5041 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5042 gtk_text_view_scroll_to_mark (text_view,
5043 text_view->dnd_mark,
5044 DND_SCROLL_MARGIN, FALSE, 0.0, 0.0);
5046 GDK_THREADS_LEAVE ();
5052 selection_motion_event_handler (GtkTextView *text_view, GdkEventMotion *event, gpointer data)
5054 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
5055 move_mark_to_pointer_and_scroll (text_view, "insert");
5057 /* If we had to scroll offscreen, insert a timeout to do so
5058 * again. Note that in the timeout, even if the mouse doesn't
5059 * move, due to this scroll xoffset/yoffset will have changed
5060 * and we'll need to scroll again.
5062 if (text_view->scroll_timeout != 0) /* reset on every motion event */
5063 gtk_timeout_remove (text_view->scroll_timeout);
5065 text_view->scroll_timeout =
5066 gtk_timeout_add (50, selection_scan_timeout, text_view);
5072 gtk_text_view_start_selection_drag (GtkTextView *text_view,
5073 const GtkTextIter *iter,
5074 GdkEventButton *button)
5076 GtkTextIter newplace;
5077 GtkTextBuffer *buffer;
5079 g_return_if_fail (text_view->selection_drag_handler == 0);
5081 gtk_grab_add (GTK_WIDGET (text_view));
5083 buffer = get_buffer (text_view);
5087 if (button->state & GDK_SHIFT_MASK)
5089 /* Extend selection */
5090 GtkTextIter start, end;
5092 gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
5094 if (gtk_text_iter_compare (&newplace, &start) <= 0)
5096 gtk_text_buffer_move_mark_by_name (buffer, "insert",
5099 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound",
5102 else if (gtk_text_iter_compare (&newplace, &end) >= 0)
5104 gtk_text_buffer_move_mark_by_name (buffer, "insert",
5107 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound",
5113 /* Replace selection */
5114 gtk_text_buffer_place_cursor (buffer, &newplace);
5117 text_view->selection_drag_handler = gtk_signal_connect (GTK_OBJECT (text_view),
5118 "motion_notify_event",
5119 GTK_SIGNAL_FUNC (selection_motion_event_handler),
5123 /* returns whether we were really dragging */
5125 gtk_text_view_end_selection_drag (GtkTextView *text_view, GdkEventButton *event)
5127 if (text_view->selection_drag_handler == 0)
5130 gtk_signal_disconnect (GTK_OBJECT (text_view), text_view->selection_drag_handler);
5131 text_view->selection_drag_handler = 0;
5133 if (text_view->scroll_timeout != 0)
5135 gtk_timeout_remove (text_view->scroll_timeout);
5136 text_view->scroll_timeout = 0;
5139 /* one last update to current position */
5140 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
5141 move_mark_to_pointer_and_scroll (text_view, "insert");
5143 gtk_grab_remove (GTK_WIDGET (text_view));
5153 gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
5154 GtkTextAttributes *values,
5157 values->appearance.bg_color = style->base[GTK_STATE_NORMAL];
5158 values->appearance.fg_color = style->text[GTK_STATE_NORMAL];
5161 pango_font_description_free (values->font);
5163 values->font = pango_font_description_copy (style->font_desc);
5167 gtk_text_view_check_keymap_direction (GtkTextView *text_view)
5169 if (text_view->layout)
5171 gboolean split_cursor;
5172 GtkTextDirection new_dir;
5173 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5175 g_object_get (G_OBJECT (settings),
5176 "gtk-split-cursor", &split_cursor,
5179 new_dir = GTK_TEXT_DIR_NONE;
5181 new_dir = (gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
5182 GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
5184 if (text_view->layout->cursor_direction != new_dir)
5185 gtk_text_layout_set_cursor_direction (text_view->layout, new_dir);
5190 gtk_text_view_ensure_layout (GtkTextView *text_view)
5194 widget = GTK_WIDGET (text_view);
5196 if (text_view->layout == NULL)
5198 GtkTextAttributes *style;
5199 PangoContext *ltr_context, *rtl_context;
5202 DV(g_print(G_STRLOC"\n"));
5204 text_view->layout = gtk_text_layout_new ();
5206 g_signal_connect (G_OBJECT (text_view->layout),
5208 G_CALLBACK (invalidated_handler),
5211 g_signal_connect (G_OBJECT (text_view->layout),
5213 G_CALLBACK (changed_handler),
5216 g_signal_connect (G_OBJECT (text_view->layout),
5218 G_CALLBACK (gtk_text_view_child_allocated),
5221 if (get_buffer (text_view))
5222 gtk_text_layout_set_buffer (text_view->layout, get_buffer (text_view));
5224 if ((GTK_WIDGET_HAS_FOCUS (text_view) && text_view->cursor_visible))
5225 gtk_text_view_pend_cursor_blink (text_view);
5227 gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
5229 ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
5230 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
5231 rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
5232 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
5234 gtk_text_layout_set_contexts (text_view->layout, ltr_context, rtl_context);
5236 g_object_unref (G_OBJECT (ltr_context));
5237 g_object_unref (G_OBJECT (rtl_context));
5239 gtk_text_view_check_keymap_direction (text_view);
5241 style = gtk_text_attributes_new ();
5243 gtk_widget_ensure_style (widget);
5244 gtk_text_view_set_attributes_from_style (text_view,
5245 style, widget->style);
5247 style->pixels_above_lines = text_view->pixels_above_lines;
5248 style->pixels_below_lines = text_view->pixels_below_lines;
5249 style->pixels_inside_wrap = text_view->pixels_inside_wrap;
5250 style->left_margin = text_view->left_margin;
5251 style->right_margin = text_view->right_margin;
5252 style->indent = text_view->indent;
5253 style->tabs = text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
5255 style->wrap_mode = text_view->wrap_mode;
5256 style->justification = text_view->justify;
5257 style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view));
5259 gtk_text_layout_set_default_style (text_view->layout, style);
5261 gtk_text_attributes_unref (style);
5263 /* Set layout for all anchored children */
5265 tmp_list = text_view->children;
5266 while (tmp_list != NULL)
5268 GtkTextViewChild *vc = tmp_list->data;
5272 gtk_text_anchored_child_set_layout (vc->widget,
5274 /* vc may now be invalid! */
5277 tmp_list = g_slist_next (tmp_list);
5283 * gtk_text_view_get_default_attributes:
5284 * @text_view: a #GtkTextView
5286 * Obtains a copy of the default text attributes. These are the
5287 * attributes used for text unless a tag overrides them.
5288 * You'd typically pass the default attributes in to
5289 * gtk_text_iter_get_attributes() in order to get the
5290 * attributes in effect at a given text position.
5292 * The return value is a copy owned by the caller of this function,
5293 * and should be freed.
5295 * Return value: a new #GtkTextAttributes
5298 gtk_text_view_get_default_attributes (GtkTextView *text_view)
5300 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
5302 gtk_text_view_ensure_layout (text_view);
5304 return gtk_text_attributes_copy (text_view->layout->default_style);
5308 gtk_text_view_destroy_layout (GtkTextView *text_view)
5310 if (text_view->layout)
5314 gtk_text_view_remove_validate_idles (text_view);
5316 /* Remove layout from all anchored children */
5317 tmp_list = text_view->children;
5318 while (tmp_list != NULL)
5320 GtkTextViewChild *vc = tmp_list->data;
5324 gtk_text_anchored_child_set_layout (vc->widget, NULL);
5325 /* vc may now be invalid! */
5328 tmp_list = g_slist_next (tmp_list);
5331 gtk_text_view_stop_cursor_blink (text_view);
5332 gtk_text_view_end_selection_drag (text_view, NULL);
5334 g_signal_handlers_disconnect_by_func (G_OBJECT (text_view->layout),
5335 invalidated_handler, text_view);
5336 g_signal_handlers_disconnect_by_func (G_OBJECT (text_view->layout),
5337 changed_handler, text_view);
5338 g_object_unref (G_OBJECT (text_view->layout));
5339 text_view->layout = NULL;
5344 gtk_text_view_reset_im_context (GtkTextView *text_view)
5346 if (text_view->need_im_reset)
5348 text_view->need_im_reset = FALSE;
5349 gtk_im_context_reset (text_view->im_context);
5358 gtk_text_view_start_selection_dnd (GtkTextView *text_view,
5359 const GtkTextIter *iter,
5360 GdkEventMotion *event)
5362 GdkDragContext *context;
5363 GtkTargetList *target_list;
5365 text_view->drag_start_x = -1;
5366 text_view->drag_start_y = -1;
5367 text_view->pending_place_cursor_button = 0;
5369 target_list = gtk_target_list_new (target_table,
5370 G_N_ELEMENTS (target_table));
5372 context = gtk_drag_begin (GTK_WIDGET (text_view), target_list,
5373 GDK_ACTION_COPY | GDK_ACTION_MOVE,
5374 1, (GdkEvent*)event);
5376 gtk_target_list_unref (target_list);
5378 gtk_drag_set_icon_default (context);
5382 gtk_text_view_drag_begin (GtkWidget *widget,
5383 GdkDragContext *context)
5389 gtk_text_view_drag_end (GtkWidget *widget,
5390 GdkDragContext *context)
5392 GtkTextView *text_view;
5394 text_view = GTK_TEXT_VIEW (widget);
5398 gtk_text_view_drag_data_get (GtkWidget *widget,
5399 GdkDragContext *context,
5400 GtkSelectionData *selection_data,
5404 GtkTextView *text_view;
5406 text_view = GTK_TEXT_VIEW (widget);
5408 if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
5410 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
5412 gtk_selection_data_set (selection_data,
5413 gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE),
5426 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
5429 /* Extract the selected text */
5430 str = gtk_text_iter_get_visible_text (&start, &end);
5435 gtk_selection_data_set_text (selection_data, str, -1);
5442 gtk_text_view_drag_data_delete (GtkWidget *widget,
5443 GdkDragContext *context)
5445 GtkTextView *text_view;
5447 text_view = GTK_TEXT_VIEW (widget);
5449 gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->buffer,
5450 TRUE, GTK_TEXT_VIEW (widget)->editable);
5454 gtk_text_view_drag_leave (GtkWidget *widget,
5455 GdkDragContext *context,
5458 GtkTextView *text_view;
5460 text_view = GTK_TEXT_VIEW (widget);
5462 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
5464 if (text_view->scroll_timeout != 0)
5465 gtk_timeout_remove (text_view->scroll_timeout);
5467 text_view->scroll_timeout = 0;
5471 gtk_text_view_drag_motion (GtkWidget *widget,
5472 GdkDragContext *context,
5477 GtkTextIter newplace;
5478 GtkTextView *text_view;
5481 GdkRectangle target_rect;
5483 GdkDragAction suggested_action = 0;
5485 text_view = GTK_TEXT_VIEW (widget);
5487 target_rect = text_view->text_window->allocation;
5489 if (x < target_rect.x ||
5490 y < target_rect.y ||
5491 x > (target_rect.x + target_rect.width) ||
5492 y > (target_rect.y + target_rect.height))
5493 return FALSE; /* outside the text window, allow parent widgets to handle event */
5495 gtk_text_view_window_to_buffer_coords (text_view,
5496 GTK_TEXT_WINDOW_WIDGET,
5500 gtk_text_layout_get_iter_at_pixel (text_view->layout,
5504 if (gtk_drag_dest_find_target (widget, context,
5505 gtk_drag_dest_get_target_list (widget)) == GDK_NONE)
5507 /* can't accept any of the offered targets */
5509 else if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
5511 gtk_text_iter_in_range (&newplace, &start, &end))
5513 /* We're inside the selection. */
5517 if (gtk_text_iter_can_insert (&newplace, text_view->editable))
5519 GtkWidget *source_widget;
5521 suggested_action = context->suggested_action;
5523 source_widget = gtk_drag_get_source_widget (context);
5525 if (source_widget == widget)
5527 /* Default to MOVE, unless the user has
5528 * pressed ctrl or alt to affect available actions
5530 if ((context->actions & GDK_ACTION_MOVE) != 0)
5531 suggested_action = GDK_ACTION_MOVE;
5536 /* Can't drop here. */
5540 if (suggested_action != 0)
5542 gtk_text_mark_set_visible (text_view->dnd_mark,
5543 text_view->cursor_visible);
5545 gdk_drag_status (context, suggested_action, time);
5549 gdk_drag_status (context, 0, time);
5550 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
5553 gtk_text_buffer_move_mark (get_buffer (text_view),
5554 text_view->dnd_mark,
5557 DV(g_print (G_STRLOC": scrolling to mark\n"));
5558 gtk_text_view_scroll_to_mark (text_view,
5559 text_view->dnd_mark,
5560 DND_SCROLL_MARGIN, FALSE, 0.0, 0.0);
5562 if (text_view->scroll_timeout != 0) /* reset on every motion event */
5563 gtk_timeout_remove (text_view->scroll_timeout);
5565 text_view->scroll_timeout =
5566 gtk_timeout_add (50, drag_scan_timeout, text_view);
5568 /* TRUE return means don't propagate the drag motion to parent
5569 * widgets that may also be drop sites.
5575 gtk_text_view_drag_drop (GtkWidget *widget,
5576 GdkDragContext *context,
5581 GtkTextView *text_view;
5582 GtkTextIter drop_point;
5583 GdkAtom target = GDK_NONE;
5585 text_view = GTK_TEXT_VIEW (widget);
5587 if (text_view->scroll_timeout != 0)
5588 gtk_timeout_remove (text_view->scroll_timeout);
5590 text_view->scroll_timeout = 0;
5592 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
5594 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5596 text_view->dnd_mark);
5598 if (gtk_text_iter_can_insert (&drop_point, text_view->editable))
5599 target = gtk_drag_dest_find_target (widget, context, NULL);
5601 if (target != GDK_NONE)
5602 gtk_drag_get_data (widget, context, target, time);
5604 gtk_drag_finish (context, FALSE, FALSE, time);
5610 insert_text_data (GtkTextView *text_view,
5611 GtkTextIter *drop_point,
5612 GtkSelectionData *selection_data)
5616 str = gtk_selection_data_get_text (selection_data);
5620 gtk_text_buffer_insert_interactive (get_buffer (text_view),
5621 drop_point, str, -1,
5622 text_view->editable);
5628 gtk_text_view_drag_data_received (GtkWidget *widget,
5629 GdkDragContext *context,
5632 GtkSelectionData *selection_data,
5636 GtkTextIter drop_point;
5637 GtkTextView *text_view;
5638 gboolean success = FALSE;
5640 text_view = GTK_TEXT_VIEW (widget);
5642 if (!text_view->dnd_mark)
5645 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5647 text_view->dnd_mark);
5649 if (!gtk_text_iter_can_insert (&drop_point, text_view->editable))
5652 if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
5654 GtkTextBuffer *src_buffer = NULL;
5655 GtkTextIter start, end;
5656 gboolean copy_tags = TRUE;
5658 if (selection_data->length != sizeof (src_buffer))
5661 memcpy (&src_buffer, selection_data->data, sizeof (src_buffer));
5663 if (src_buffer == NULL)
5666 g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer));
5668 if (gtk_text_buffer_get_tag_table (src_buffer) !=
5669 gtk_text_buffer_get_tag_table (get_buffer (text_view)))
5672 if (gtk_text_buffer_get_selection_bounds (src_buffer,
5677 gtk_text_buffer_insert_range_interactive (get_buffer (text_view),
5681 text_view->editable);
5686 str = gtk_text_iter_get_visible_text (&start, &end);
5687 gtk_text_buffer_insert_interactive (get_buffer (text_view),
5688 &drop_point, str, -1,
5689 text_view->editable);
5695 insert_text_data (text_view, &drop_point, selection_data);
5700 gtk_drag_finish (context, success,
5701 success && context->action == GDK_ACTION_MOVE,
5705 static GtkAdjustment*
5706 get_hadjustment (GtkTextView *text_view)
5708 if (text_view->hadjustment == NULL)
5709 gtk_text_view_set_scroll_adjustments (text_view,
5710 NULL, /* forces creation */
5711 text_view->vadjustment);
5713 return text_view->hadjustment;
5716 static GtkAdjustment*
5717 get_vadjustment (GtkTextView *text_view)
5719 if (text_view->vadjustment == NULL)
5720 gtk_text_view_set_scroll_adjustments (text_view,
5721 text_view->hadjustment,
5722 NULL); /* forces creation */
5723 return text_view->vadjustment;
5728 gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
5729 GtkAdjustment *hadj,
5730 GtkAdjustment *vadj)
5732 gboolean need_adjust = FALSE;
5734 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
5737 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
5739 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
5741 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
5743 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
5745 if (text_view->hadjustment && (text_view->hadjustment != hadj))
5747 gtk_signal_disconnect_by_data (GTK_OBJECT (text_view->hadjustment), text_view);
5748 g_object_unref (G_OBJECT (text_view->hadjustment));
5751 if (text_view->vadjustment && (text_view->vadjustment != vadj))
5753 gtk_signal_disconnect_by_data (GTK_OBJECT (text_view->vadjustment), text_view);
5754 g_object_unref (G_OBJECT (text_view->vadjustment));
5757 if (text_view->hadjustment != hadj)
5759 text_view->hadjustment = hadj;
5760 g_object_ref (G_OBJECT (text_view->hadjustment));
5761 gtk_object_sink (GTK_OBJECT (text_view->hadjustment));
5763 gtk_signal_connect (GTK_OBJECT (text_view->hadjustment), "value_changed",
5764 (GtkSignalFunc) gtk_text_view_value_changed,
5769 if (text_view->vadjustment != vadj)
5771 text_view->vadjustment = vadj;
5772 g_object_ref (G_OBJECT (text_view->vadjustment));
5773 gtk_object_sink (GTK_OBJECT (text_view->vadjustment));
5775 gtk_signal_connect (GTK_OBJECT (text_view->vadjustment), "value_changed",
5776 (GtkSignalFunc) gtk_text_view_value_changed,
5782 gtk_text_view_value_changed (NULL, text_view);
5786 gtk_text_view_value_changed (GtkAdjustment *adj,
5787 GtkTextView *text_view)
5794 /* Note that we oddly call this function with adj == NULL
5798 text_view->onscreen_validated = FALSE;
5800 DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n",
5801 adj == text_view->hadjustment ? "hadj" : adj == text_view->vadjustment ? "vadj" : "none",
5802 adj ? adj->value : 0.0));
5804 if (adj == text_view->hadjustment)
5806 dx = text_view->xoffset - (gint)adj->value;
5807 text_view->xoffset = adj->value;
5809 else if (adj == text_view->vadjustment)
5811 dy = text_view->yoffset - (gint)adj->value;
5812 text_view->yoffset = adj->value;
5814 if (text_view->layout)
5816 gtk_text_layout_get_line_at_y (text_view->layout, &iter, adj->value, &line_top);
5818 gtk_text_buffer_move_mark (get_buffer (text_view), text_view->first_para_mark, &iter);
5820 text_view->first_para_pixels = adj->value - line_top;
5824 if (dx != 0 || dy != 0)
5828 if (GTK_WIDGET_REALIZED (text_view))
5832 if (text_view->left_window)
5833 text_window_scroll (text_view->left_window, 0, dy);
5834 if (text_view->right_window)
5835 text_window_scroll (text_view->right_window, 0, dy);
5840 if (text_view->top_window)
5841 text_window_scroll (text_view->top_window, dx, 0);
5842 if (text_view->bottom_window)
5843 text_window_scroll (text_view->bottom_window, dx, 0);
5846 /* It looks nicer to scroll the main area last, because
5847 * it takes a while, and making the side areas update
5848 * afterward emphasizes the slowness of scrolling the
5851 text_window_scroll (text_view->text_window, dx, dy);
5854 /* Children are now "moved" in the text window, poke
5855 * into widget->allocation for each child
5857 tmp_list = text_view->children;
5858 while (tmp_list != NULL)
5860 GtkTextViewChild *child = tmp_list->data;
5864 child->widget->allocation.x -= dx;
5865 child->widget->allocation.y -= dy;
5868 g_print ("allocation for %p tweaked to %d,%d\n",
5870 child->widget->allocation.x,
5871 child->widget->allocation.y);
5875 tmp_list = g_slist_next (tmp_list);
5879 /* This could result in invalidation, which would install the
5880 * first_validate_idle, which would validate onscreen;
5881 * but we're going to go ahead and validate here, so
5882 * first_validate_idle shouldn't have anything to do.
5884 gtk_text_view_update_layout_width (text_view);
5886 /* note that validation of onscreen could invoke this function
5887 * recursively, by scrolling to maintain first_para, or in response
5888 * to updating the layout width, however there is no problem with
5889 * that, or shouldn't be.
5891 gtk_text_view_validate_onscreen (text_view);
5893 /* process exposes */
5894 if (GTK_WIDGET_REALIZED (text_view))
5896 DV (g_print ("Processing updates (%s)\n", G_STRLOC));
5898 if (text_view->left_window)
5899 gdk_window_process_updates (text_view->left_window->bin_window, TRUE);
5901 if (text_view->right_window)
5902 gdk_window_process_updates (text_view->right_window->bin_window, TRUE);
5904 if (text_view->top_window)
5905 gdk_window_process_updates (text_view->top_window->bin_window, TRUE);
5907 if (text_view->bottom_window)
5908 gdk_window_process_updates (text_view->bottom_window->bin_window, TRUE);
5910 gdk_window_process_updates (text_view->text_window->bin_window, TRUE);
5913 /* If this got installed, get rid of it, it's just a waste of time. */
5914 if (text_view->first_validate_idle != 0)
5916 g_source_remove (text_view->first_validate_idle);
5917 text_view->first_validate_idle = 0;
5920 gtk_text_view_update_im_spot_location (text_view);
5922 DV(g_print(">End scroll offset changed handler ("G_STRLOC")\n"));
5926 gtk_text_view_commit_handler (GtkIMContext *context,
5928 GtkTextView *text_view)
5930 gtk_text_view_commit_text (text_view, str);
5934 gtk_text_view_commit_text (GtkTextView *text_view,
5937 gboolean had_selection;
5939 gtk_text_buffer_begin_user_action (get_buffer (text_view));
5941 had_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
5944 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5945 text_view->editable);
5947 if (!strcmp (str, "\n"))
5949 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
5950 text_view->editable);
5954 if (!had_selection && text_view->overwrite_mode)
5955 gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
5956 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
5957 text_view->editable);
5960 gtk_text_buffer_end_user_action (get_buffer (text_view));
5962 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5963 gtk_text_view_scroll_mark_onscreen (text_view,
5964 gtk_text_buffer_get_mark (get_buffer (text_view),
5969 gtk_text_view_preedit_changed_handler (GtkIMContext *context,
5970 GtkTextView *text_view)
5973 PangoAttrList *attrs;
5976 gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos);
5977 gtk_text_layout_set_preedit_string (text_view->layout, str, attrs, cursor_pos);
5979 pango_attr_list_unref (attrs);
5984 gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
5985 GtkTextView *text_view)
5992 gtk_text_buffer_get_iter_at_mark (text_view->buffer, &start,
5993 gtk_text_buffer_get_insert (text_view->buffer));
5996 pos = gtk_text_iter_get_line_index (&start);
5997 gtk_text_iter_set_line_offset (&start, 0);
5998 gtk_text_iter_forward_to_line_end (&end);
6000 text = gtk_text_iter_get_slice (&start, &end);
6001 gtk_im_context_set_surrounding (context, text, -1, pos);
6008 gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
6011 GtkTextView *text_view)
6016 gtk_text_buffer_get_iter_at_mark (text_view->buffer, &start,
6017 gtk_text_buffer_get_insert (text_view->buffer));
6020 gtk_text_iter_forward_chars (&start, offset);
6021 gtk_text_iter_forward_chars (&end, offset + n_chars);
6023 gtk_text_buffer_delete (text_view->buffer, &start, &end);
6029 gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
6030 const GtkTextIter *location,
6034 GtkTextView *text_view = GTK_TEXT_VIEW (data);
6035 gboolean need_reset = FALSE;
6037 if (mark == gtk_text_buffer_get_insert (buffer))
6039 text_view->virtual_cursor_x = -1;
6040 text_view->virtual_cursor_y = -1;
6041 gtk_text_view_update_im_spot_location (text_view);
6044 else if (mark == gtk_text_buffer_get_selection_bound (buffer))
6050 gtk_text_view_reset_im_context (text_view);
6054 gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
6058 GdkRectangle strong_pos;
6061 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
6062 gtk_text_buffer_get_mark (get_buffer (text_view),
6065 if ((x && text_view->virtual_cursor_x == -1) ||
6066 (y && text_view->virtual_cursor_y == -1))
6067 gtk_text_layout_get_cursor_locations (text_view->layout, &insert, &strong_pos, NULL);
6071 if (text_view->virtual_cursor_x != -1)
6072 *x = text_view->virtual_cursor_x;
6079 if (text_view->virtual_cursor_x != -1)
6080 *y = text_view->virtual_cursor_y;
6082 *y = strong_pos.y + strong_pos.height / 2;
6087 gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
6091 GdkRectangle strong_pos;
6094 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
6095 gtk_text_buffer_get_mark (get_buffer (text_view),
6098 if (x == -1 || y == -1)
6099 gtk_text_layout_get_cursor_locations (text_view->layout, &insert, &strong_pos, NULL);
6101 text_view->virtual_cursor_x = (x == -1) ? strong_pos.x : x;
6102 text_view->virtual_cursor_y = (y == -1) ? strong_pos.y + strong_pos.height / 2 : y;
6105 /* Quick hack of a popup menu
6108 activate_cb (GtkWidget *menuitem,
6109 GtkTextView *text_view)
6111 const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
6112 gtk_signal_emit_by_name (GTK_OBJECT (text_view), signal);
6116 append_action_signal (GtkTextView *text_view,
6118 const gchar *stock_id,
6119 const gchar *signal,
6122 GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
6124 g_object_set_data (G_OBJECT (menuitem), "gtk-signal", (char *)signal);
6125 gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
6126 GTK_SIGNAL_FUNC (activate_cb), text_view);
6128 gtk_widget_set_sensitive (menuitem, sensitive);
6130 gtk_widget_show (menuitem);
6131 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
6135 popup_menu_detach (GtkWidget *attach_widget,
6138 GTK_TEXT_VIEW (attach_widget)->popup_menu = NULL;
6142 popup_position_func (GtkMenu *menu,
6148 GtkTextView *text_view;
6150 GdkRectangle cursor_rect;
6151 GdkRectangle onscreen_rect;
6152 gint root_x, root_y;
6156 text_view = GTK_TEXT_VIEW (user_data);
6157 widget = GTK_WIDGET (text_view);
6159 g_return_if_fail (GTK_WIDGET_REALIZED (text_view));
6161 gdk_window_get_origin (widget->window, &root_x, &root_y);
6163 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
6165 gtk_text_buffer_get_insert (get_buffer (text_view)));
6167 gtk_text_view_get_iter_location (text_view,
6171 gtk_text_view_get_visible_rect (text_view, &onscreen_rect);
6173 gtk_widget_size_request (text_view->popup_menu, &req);
6175 /* can't use rectangle_intersect since cursor rect can have 0 width */
6176 if (cursor_rect.x >= onscreen_rect.x &&
6177 cursor_rect.x < onscreen_rect.x + onscreen_rect.width &&
6178 cursor_rect.y >= onscreen_rect.y &&
6179 cursor_rect.y < onscreen_rect.y + onscreen_rect.height)
6181 gtk_text_view_buffer_to_window_coords (text_view,
6182 GTK_TEXT_WINDOW_WIDGET,
6183 cursor_rect.x, cursor_rect.y,
6184 &cursor_rect.x, &cursor_rect.y);
6186 *x = root_x + cursor_rect.x + cursor_rect.width;
6187 *y = root_y + cursor_rect.y + cursor_rect.height;
6191 /* Just center the menu, since cursor is offscreen. */
6192 *x = root_x + (widget->allocation.width / 2 - req.width / 2);
6193 *y = root_y + (widget->allocation.height / 2 - req.height / 2);
6197 *x = CLAMP (*x, root_x, (root_x + widget->allocation.width));
6198 *y = CLAMP (*y, root_y, (root_y + widget->allocation.height));
6200 *x = CLAMP (*x, 0, MAX (0, gdk_screen_width () - req.width));
6201 *y = CLAMP (*y, 0, MAX (0, gdk_screen_height () - req.height));
6206 GtkTextView *text_view;
6212 range_contains_editable_text (const GtkTextIter *start,
6213 const GtkTextIter *end,
6214 gboolean default_editability)
6216 GtkTextIter iter = *start;
6218 while (gtk_text_iter_compare (&iter, end) < 0)
6220 if (gtk_text_iter_editable (&iter, default_editability))
6223 gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
6230 unichar_chosen_func (const char *text,
6233 GtkTextView *text_view = GTK_TEXT_VIEW (data);
6235 gtk_text_view_commit_text (text_view, text);
6239 popup_targets_received (GtkClipboard *clipboard,
6240 GtkSelectionData *data,
6243 PopupInfo *info = user_data;
6244 GtkTextView *text_view = info->text_view;
6246 if (GTK_WIDGET_REALIZED (text_view))
6248 /* We implicitely rely here on the fact that if we are pasting ourself, we'll
6249 * have text targets as well as the private GTK_TEXT_BUFFER_CONTENTS target.
6251 gboolean clipboard_contains_text = gtk_selection_data_targets_include_text (data);
6252 GtkWidget *menuitem;
6254 gboolean have_selection;
6255 gboolean can_insert;
6257 GtkTextIter sel_start, sel_end;
6259 if (text_view->popup_menu)
6260 gtk_widget_destroy (text_view->popup_menu);
6262 text_view->popup_menu = gtk_menu_new ();
6264 gtk_menu_attach_to_widget (GTK_MENU (text_view->popup_menu),
6265 GTK_WIDGET (text_view),
6268 have_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
6269 &sel_start, &sel_end);
6271 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
6273 gtk_text_buffer_get_insert (get_buffer (text_view)));
6275 can_insert = gtk_text_iter_can_insert (&iter, text_view->editable);
6277 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_CUT, "cut_clipboard",
6279 range_contains_editable_text (&sel_start, &sel_end,
6280 text_view->editable));
6281 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_COPY, "copy_clipboard",
6283 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_PASTE, "paste_clipboard",
6284 can_insert && clipboard_contains_text);
6286 menuitem = gtk_separator_menu_item_new ();
6287 gtk_widget_show (menuitem);
6288 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
6290 menuitem = gtk_menu_item_new_with_mnemonic (_("Input _Methods"));
6291 gtk_widget_show (menuitem);
6292 submenu = gtk_menu_new ();
6293 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
6294 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
6296 gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (text_view->im_context),
6297 GTK_MENU_SHELL (submenu));
6299 menuitem = gtk_menu_item_new_with_mnemonic (_("_Insert Unicode control character"));
6300 gtk_widget_show (menuitem);
6301 gtk_widget_set_sensitive (menuitem, can_insert);
6303 submenu = gtk_menu_new ();
6304 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
6305 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
6307 _gtk_text_util_append_special_char_menuitems (GTK_MENU_SHELL (submenu),
6308 unichar_chosen_func,
6311 gtk_signal_emit (GTK_OBJECT (text_view),
6312 signals[POPULATE_POPUP],
6313 text_view->popup_menu);
6316 gtk_menu_popup (GTK_MENU (text_view->popup_menu), NULL, NULL,
6318 info->button, info->time);
6321 gtk_menu_popup (GTK_MENU (text_view->popup_menu), NULL, NULL,
6322 popup_position_func, text_view,
6323 0, gtk_get_current_event_time ());
6324 _gtk_menu_shell_select_first (GTK_MENU_SHELL (text_view->popup_menu));
6328 g_object_unref (text_view);
6333 gtk_text_view_do_popup (GtkTextView *text_view,
6334 GdkEventButton *event)
6336 PopupInfo *info = g_new (PopupInfo, 1);
6338 /* In order to know what entries we should make sensitive, we
6339 * ask for the current targets of the clipboard, and when
6340 * we get them, then we actually pop up the menu.
6342 info->text_view = g_object_ref (text_view);
6346 info->button = event->button;
6347 info->time = event->time;
6352 info->time = gtk_get_current_event_time ();
6355 gtk_clipboard_request_contents (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
6356 gdk_atom_intern ("TARGETS", FALSE),
6357 popup_targets_received,
6362 gtk_text_view_popup_menu (GtkWidget *widget)
6364 gtk_text_view_do_popup (GTK_TEXT_VIEW (widget), NULL);
6368 /* Child GdkWindows */
6371 static GtkTextWindow*
6372 text_window_new (GtkTextWindowType type,
6375 gint height_request)
6379 win = g_new (GtkTextWindow, 1);
6382 win->widget = widget;
6384 win->bin_window = NULL;
6385 win->requisition.width = width_request;
6386 win->requisition.height = height_request;
6387 win->allocation.width = width_request;
6388 win->allocation.height = height_request;
6389 win->allocation.x = 0;
6390 win->allocation.y = 0;
6396 text_window_free (GtkTextWindow *win)
6399 text_window_unrealize (win);
6405 text_window_realize (GtkTextWindow *win,
6408 GdkWindowAttr attributes;
6409 gint attributes_mask;
6412 attributes.window_type = GDK_WINDOW_CHILD;
6413 attributes.x = win->allocation.x;
6414 attributes.y = win->allocation.y;
6415 attributes.width = win->allocation.width;
6416 attributes.height = win->allocation.height;
6417 attributes.wclass = GDK_INPUT_OUTPUT;
6418 attributes.visual = gtk_widget_get_visual (win->widget);
6419 attributes.colormap = gtk_widget_get_colormap (win->widget);
6420 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
6422 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
6424 win->window = gdk_window_new (parent,
6428 gdk_window_show (win->window);
6429 gdk_window_set_user_data (win->window, win->widget);
6433 attributes.width = win->allocation.width;
6434 attributes.height = win->allocation.height;
6435 attributes.event_mask = (GDK_EXPOSURE_MASK |
6437 GDK_KEY_PRESS_MASK |
6438 GDK_BUTTON_PRESS_MASK |
6439 GDK_BUTTON_RELEASE_MASK |
6440 GDK_POINTER_MOTION_MASK |
6441 GDK_POINTER_MOTION_HINT_MASK |
6442 gtk_widget_get_events (win->widget));
6444 win->bin_window = gdk_window_new (win->window,
6448 gdk_window_show (win->bin_window);
6449 gdk_window_set_user_data (win->bin_window, win->widget);
6451 if (win->type == GTK_TEXT_WINDOW_TEXT)
6454 cursor = gdk_cursor_new (GDK_XTERM);
6455 gdk_window_set_cursor (win->bin_window, cursor);
6456 gdk_cursor_unref (cursor);
6458 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
6462 gdk_window_set_background (win->bin_window,
6463 &win->widget->style->base[GTK_WIDGET_STATE (win->widget)]);
6467 gdk_window_set_background (win->bin_window,
6468 &win->widget->style->bg[GTK_WIDGET_STATE (win->widget)]);
6471 g_object_set_qdata (G_OBJECT (win->window),
6472 g_quark_from_static_string ("gtk-text-view-text-window"),
6475 g_object_set_qdata (G_OBJECT (win->bin_window),
6476 g_quark_from_static_string ("gtk-text-view-text-window"),
6481 text_window_unrealize (GtkTextWindow *win)
6483 if (win->type == GTK_TEXT_WINDOW_TEXT)
6485 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
6489 gdk_window_set_user_data (win->window, NULL);
6490 gdk_window_set_user_data (win->bin_window, NULL);
6491 gdk_window_destroy (win->bin_window);
6492 gdk_window_destroy (win->window);
6494 win->bin_window = NULL;
6498 text_window_size_allocate (GtkTextWindow *win,
6501 win->allocation = *rect;
6505 gdk_window_move_resize (win->window,
6507 rect->width, rect->height);
6509 gdk_window_resize (win->bin_window,
6510 rect->width, rect->height);
6515 text_window_scroll (GtkTextWindow *win,
6519 if (dx != 0 || dy != 0)
6521 gdk_window_scroll (win->bin_window, dx, dy);
6526 text_window_invalidate_rect (GtkTextWindow *win,
6529 GdkRectangle window_rect;
6531 gtk_text_view_buffer_to_window_coords (GTK_TEXT_VIEW (win->widget),
6538 window_rect.width = rect->width;
6539 window_rect.height = rect->height;
6541 /* Adjust the rect as appropriate */
6545 case GTK_TEXT_WINDOW_TEXT:
6548 case GTK_TEXT_WINDOW_LEFT:
6549 case GTK_TEXT_WINDOW_RIGHT:
6551 window_rect.width = win->allocation.width;
6554 case GTK_TEXT_WINDOW_TOP:
6555 case GTK_TEXT_WINDOW_BOTTOM:
6557 window_rect.height = win->allocation.height;
6561 g_warning ("%s: bug!", G_STRLOC);
6566 gdk_window_invalidate_rect (win->bin_window, &window_rect, FALSE);
6570 GdkColor color = { 0, 65535, 0, 0 };
6571 GdkGC *gc = gdk_gc_new (win->bin_window);
6572 gdk_gc_set_rgb_fg_color (gc, &color);
6573 gdk_draw_rectangle (win->bin_window,
6574 gc, TRUE, window_rect.x, window_rect.y,
6575 window_rect.width, window_rect.height);
6582 text_window_get_width (GtkTextWindow *win)
6584 return win->allocation.width;
6588 text_window_get_height (GtkTextWindow *win)
6590 return win->allocation.height;
6594 text_window_get_allocation (GtkTextWindow *win,
6597 *rect = win->allocation;
6604 * gtk_text_view_get_window:
6605 * @text_view: a #GtkTextView
6606 * @win: window to get
6608 * Retrieves the #GdkWindow corresponding to an area of the text view;
6609 * possible windows include the overall widget window, child windows
6610 * on the left, right, top, bottom, and the window that displays the
6611 * text buffer. Windows are %NULL and nonexistent if their width or
6612 * height is 0, and are nonexistent before the widget has been
6615 * Return value: a #GdkWindow, or %NULL
6618 gtk_text_view_get_window (GtkTextView *text_view,
6619 GtkTextWindowType win)
6621 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
6625 case GTK_TEXT_WINDOW_WIDGET:
6626 return GTK_WIDGET (text_view)->window;
6629 case GTK_TEXT_WINDOW_TEXT:
6630 return text_view->text_window->bin_window;
6633 case GTK_TEXT_WINDOW_LEFT:
6634 if (text_view->left_window)
6635 return text_view->left_window->bin_window;
6640 case GTK_TEXT_WINDOW_RIGHT:
6641 if (text_view->right_window)
6642 return text_view->right_window->bin_window;
6647 case GTK_TEXT_WINDOW_TOP:
6648 if (text_view->top_window)
6649 return text_view->top_window->bin_window;
6654 case GTK_TEXT_WINDOW_BOTTOM:
6655 if (text_view->bottom_window)
6656 return text_view->bottom_window->bin_window;
6661 case GTK_TEXT_WINDOW_PRIVATE:
6662 g_warning ("%s: You can't get GTK_TEXT_WINDOW_PRIVATE, it has \"PRIVATE\" in the name because it is private.", G_GNUC_FUNCTION);
6667 g_warning ("%s: Unknown GtkTextWindowType", G_GNUC_FUNCTION);
6672 * gtk_text_view_get_window_type:
6673 * @text_view: a #GtkTextView
6674 * @window: a window type
6676 * Usually used to find out which window an event corresponds to.
6677 * If you connect to an event signal on @text_view, this function
6678 * should be called on <literal>event->window</literal> to
6679 * see which window it was.
6681 * Return value: the window type.
6684 gtk_text_view_get_window_type (GtkTextView *text_view,
6689 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
6690 g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
6692 if (window == GTK_WIDGET (text_view)->window)
6693 return GTK_TEXT_WINDOW_WIDGET;
6695 win = g_object_get_qdata (G_OBJECT (window),
6696 g_quark_try_string ("gtk-text-view-text-window"));
6702 return GTK_TEXT_WINDOW_PRIVATE;
6707 buffer_to_widget (GtkTextView *text_view,
6715 *window_x = buffer_x - text_view->xoffset;
6716 *window_x += text_view->text_window->allocation.x;
6721 *window_y = buffer_y - text_view->yoffset;
6722 *window_y += text_view->text_window->allocation.y;
6727 widget_to_text_window (GtkTextWindow *win,
6734 *window_x = widget_x - win->allocation.x;
6737 *window_y = widget_y - win->allocation.y;
6741 buffer_to_text_window (GtkTextView *text_view,
6750 g_warning ("Attempt to convert text buffer coordinates to coordinates "
6751 "for a nonexistent or private child window of GtkTextView");
6755 buffer_to_widget (text_view,
6757 window_x, window_y);
6759 widget_to_text_window (win,
6760 window_x ? *window_x : 0,
6761 window_y ? *window_y : 0,
6767 * gtk_text_view_buffer_to_window_coords:
6768 * @text_view: a #GtkTextView
6769 * @win: a #GtkTextWindowType
6770 * @buffer_x: buffer x coordinate
6771 * @buffer_y: buffer y coordinate
6772 * @window_x: window x coordinate return location
6773 * @window_y: window y coordinate return location
6775 * Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window
6776 * @win, and stores the result in (@window_x, @window_y).
6779 gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
6780 GtkTextWindowType win,
6786 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6790 case GTK_TEXT_WINDOW_WIDGET:
6791 buffer_to_widget (text_view,
6793 window_x, window_y);
6796 case GTK_TEXT_WINDOW_TEXT:
6798 *window_x = buffer_x - text_view->xoffset;
6800 *window_y = buffer_y - text_view->yoffset;
6803 case GTK_TEXT_WINDOW_LEFT:
6804 buffer_to_text_window (text_view,
6805 text_view->left_window,
6807 window_x, window_y);
6810 case GTK_TEXT_WINDOW_RIGHT:
6811 buffer_to_text_window (text_view,
6812 text_view->right_window,
6814 window_x, window_y);
6817 case GTK_TEXT_WINDOW_TOP:
6818 buffer_to_text_window (text_view,
6819 text_view->top_window,
6821 window_x, window_y);
6824 case GTK_TEXT_WINDOW_BOTTOM:
6825 buffer_to_text_window (text_view,
6826 text_view->bottom_window,
6828 window_x, window_y);
6831 case GTK_TEXT_WINDOW_PRIVATE:
6832 g_warning ("%s: can't get coords for private windows", G_STRLOC);
6836 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
6842 widget_to_buffer (GtkTextView *text_view,
6850 *buffer_x = widget_x + text_view->xoffset;
6851 *buffer_x -= text_view->text_window->allocation.x;
6856 *buffer_y = widget_y + text_view->yoffset;
6857 *buffer_y -= text_view->text_window->allocation.y;
6862 text_window_to_widget (GtkTextWindow *win,
6869 *widget_x = window_x + win->allocation.x;
6872 *widget_y = window_y + win->allocation.y;
6876 text_window_to_buffer (GtkTextView *text_view,
6885 g_warning ("Attempt to convert GtkTextView buffer coordinates into "
6886 "coordinates for a nonexistent child window.");
6890 text_window_to_widget (win,
6896 widget_to_buffer (text_view,
6897 buffer_x ? *buffer_x : 0,
6898 buffer_y ? *buffer_y : 0,
6904 * gtk_text_view_window_to_buffer_coords:
6905 * @text_view: a #GtkTextView
6906 * @win: a #GtkTextWindowType
6907 * @window_x: window x coordinate
6908 * @window_y: window y coordinate
6909 * @buffer_x: buffer x coordinate return location
6910 * @buffer_y: buffer y coordinate return location
6912 * Converts coordinates on the window identified by @win to buffer
6913 * coordinates, storing the result in (@buffer_x,@buffer_y).
6916 gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
6917 GtkTextWindowType win,
6923 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6927 case GTK_TEXT_WINDOW_WIDGET:
6928 widget_to_buffer (text_view,
6930 buffer_x, buffer_y);
6933 case GTK_TEXT_WINDOW_TEXT:
6935 *buffer_x = window_x + text_view->xoffset;
6937 *buffer_y = window_y + text_view->yoffset;
6940 case GTK_TEXT_WINDOW_LEFT:
6941 text_window_to_buffer (text_view,
6942 text_view->left_window,
6944 buffer_x, buffer_y);
6947 case GTK_TEXT_WINDOW_RIGHT:
6948 text_window_to_buffer (text_view,
6949 text_view->right_window,
6951 buffer_x, buffer_y);
6954 case GTK_TEXT_WINDOW_TOP:
6955 text_window_to_buffer (text_view,
6956 text_view->top_window,
6958 buffer_x, buffer_y);
6961 case GTK_TEXT_WINDOW_BOTTOM:
6962 text_window_to_buffer (text_view,
6963 text_view->bottom_window,
6965 buffer_x, buffer_y);
6968 case GTK_TEXT_WINDOW_PRIVATE:
6969 g_warning ("%s: can't get coords for private windows", G_STRLOC);
6973 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
6979 set_window_width (GtkTextView *text_view,
6981 GtkTextWindowType type,
6982 GtkTextWindow **winp)
6988 text_window_free (*winp);
6990 gtk_widget_queue_resize (GTK_WIDGET (text_view));
6997 *winp = text_window_new (type,
6998 GTK_WIDGET (text_view),
7000 /* if the widget is already realized we need to realize the child manually */
7001 if (GTK_WIDGET_REALIZED (text_view))
7002 text_window_realize (*winp, GTK_WIDGET (text_view)->window);
7006 if ((*winp)->requisition.width == width)
7009 (*winp)->requisition.width = width;
7012 gtk_widget_queue_resize (GTK_WIDGET (text_view));
7018 set_window_height (GtkTextView *text_view,
7020 GtkTextWindowType type,
7021 GtkTextWindow **winp)
7027 text_window_free (*winp);
7029 gtk_widget_queue_resize (GTK_WIDGET (text_view));
7036 *winp = text_window_new (type,
7037 GTK_WIDGET (text_view),
7040 /* if the widget is already realized we need to realize the child manually */
7041 if (GTK_WIDGET_REALIZED (text_view))
7042 text_window_realize (*winp, GTK_WIDGET (text_view)->window);
7046 if ((*winp)->requisition.height == height)
7049 (*winp)->requisition.height = height;
7052 gtk_widget_queue_resize (GTK_WIDGET (text_view));
7057 * gtk_text_view_set_border_window_size:
7058 * @text_view: a #GtkTextView
7059 * @type: window to affect
7060 * @size: width or height of the window
7062 * Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT,
7063 * or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM.
7064 * Automatically destroys the corresponding window if the size is set
7065 * to 0, and creates the window if the size is set to non-zero. This
7066 * function can only be used for the "border windows," it doesn't work
7067 * with #GTK_TEXT_WINDOW_WIDGET, #GTK_TEXT_WINDOW_TEXT, or
7068 * #GTK_TEXT_WINDOW_PRIVATE.
7071 gtk_text_view_set_border_window_size (GtkTextView *text_view,
7072 GtkTextWindowType type,
7076 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
7077 g_return_if_fail (size >= 0);
7081 case GTK_TEXT_WINDOW_LEFT:
7082 set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT,
7083 &text_view->left_window);
7086 case GTK_TEXT_WINDOW_RIGHT:
7087 set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT,
7088 &text_view->right_window);
7091 case GTK_TEXT_WINDOW_TOP:
7092 set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP,
7093 &text_view->top_window);
7096 case GTK_TEXT_WINDOW_BOTTOM:
7097 set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM,
7098 &text_view->bottom_window);
7102 g_warning ("Can only set size of left/right/top/bottom border windows with gtk_text_view_set_border_window_size()");
7108 * gtk_text_view_get_border_window_size:
7109 * @text_view: a #GtkTextView
7110 * @type: window to return size from
7112 * Gets the width of the specified border window. See
7113 * gtk_text_view_set_border_window_size().
7115 * Return value: width of window
7118 gtk_text_view_get_border_window_size (GtkTextView *text_view,
7119 GtkTextWindowType type)
7121 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
7125 case GTK_TEXT_WINDOW_LEFT:
7126 if (text_view->left_window)
7127 return text_view->left_window->requisition.width;
7129 case GTK_TEXT_WINDOW_RIGHT:
7130 if (text_view->right_window)
7131 return text_view->right_window->requisition.width;
7133 case GTK_TEXT_WINDOW_TOP:
7134 if (text_view->top_window)
7135 return text_view->top_window->requisition.height;
7137 case GTK_TEXT_WINDOW_BOTTOM:
7138 if (text_view->bottom_window)
7139 return text_view->bottom_window->requisition.height;
7142 g_warning ("Can only get size of left/right/top/bottom border windows with gtk_text_view_get_border_window_size()");
7153 static GtkTextViewChild*
7154 text_view_child_new_anchored (GtkWidget *child,
7155 GtkTextChildAnchor *anchor,
7156 GtkTextLayout *layout)
7158 GtkTextViewChild *vc;
7160 vc = g_new (GtkTextViewChild, 1);
7163 vc->anchor = anchor;
7165 vc->from_top_of_line = 0;
7166 vc->from_left_of_buffer = 0;
7168 g_object_ref (G_OBJECT (vc->widget));
7169 g_object_ref (G_OBJECT (vc->anchor));
7171 g_object_set_data (G_OBJECT (child),
7172 "gtk-text-view-child",
7175 gtk_text_child_anchor_register_child (anchor, child, layout);
7180 static GtkTextViewChild*
7181 text_view_child_new_window (GtkWidget *child,
7182 GtkTextWindowType type,
7186 GtkTextViewChild *vc;
7188 vc = g_new (GtkTextViewChild, 1);
7193 vc->from_top_of_line = 0;
7194 vc->from_left_of_buffer = 0;
7196 g_object_ref (G_OBJECT (vc->widget));
7202 g_object_set_data (G_OBJECT (child),
7203 "gtk-text-view-child",
7210 text_view_child_free (GtkTextViewChild *child)
7212 g_object_set_data (G_OBJECT (child->widget),
7213 "gtk-text-view-child", NULL);
7217 gtk_text_child_anchor_unregister_child (child->anchor,
7219 g_object_unref (G_OBJECT (child->anchor));
7222 g_object_unref (G_OBJECT (child->widget));
7228 text_view_child_set_parent_window (GtkTextView *text_view,
7229 GtkTextViewChild *vc)
7232 gtk_widget_set_parent_window (vc->widget,
7233 text_view->text_window->bin_window);
7237 window = gtk_text_view_get_window (text_view,
7239 gtk_widget_set_parent_window (vc->widget, window);
7244 add_child (GtkTextView *text_view,
7245 GtkTextViewChild *vc)
7247 text_view->children = g_slist_prepend (text_view->children,
7250 if (GTK_WIDGET_REALIZED (text_view))
7251 text_view_child_set_parent_window (text_view, vc);
7253 gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view));
7257 * gtk_text_view_add_child_at_anchor:
7258 * @text_view: a #GtkTextView
7259 * @child: a #GtkWidget
7260 * @anchor: a #GtkTextChildAnchor in the #GtkTextBuffer for @text_view
7262 * Adds a child widget in the text buffer, at the given @anchor.
7266 gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
7268 GtkTextChildAnchor *anchor)
7270 GtkTextViewChild *vc;
7272 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
7273 g_return_if_fail (GTK_IS_WIDGET (child));
7274 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
7275 g_return_if_fail (child->parent == NULL);
7277 gtk_text_view_ensure_layout (text_view);
7279 vc = text_view_child_new_anchored (child, anchor,
7282 add_child (text_view, vc);
7284 g_assert (vc->widget == child);
7285 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
7289 * gtk_text_view_add_child_in_window:
7290 * @text_view: a #GtkTextView
7291 * @child: a #GtkWidget
7292 * @which_window: which window the child should appear in
7293 * @xpos: X position of child in window coordinates
7294 * @ypos: Y position of child in window coordinates
7296 * Adds a child at fixed coordinates in one of the text widget's
7297 * windows. The window must have nonzero size (see
7298 * gtk_text_view_set_border_window_size()). Note that the child
7299 * coordinates are given relative to the #GdkWindow in question, and
7300 * that these coordinates have no sane relationship to scrolling. When
7301 * placing a child in #GTK_TEXT_WINDOW_WIDGET, scrolling is
7302 * irrelevant, the child floats above all scrollable areas. But when
7303 * placing a child in one of the scrollable windows (border windows or
7304 * text window), you'll need to compute the child's correct position
7305 * in buffer coordinates any time scrolling occurs or buffer changes
7306 * occur, and then call gtk_text_view_move_child() to update the
7307 * child's position. Unfortunately there's no good way to detect that
7308 * scrolling has occurred, using the current API; a possible hack
7309 * would be to update all child positions when the scroll adjustments
7310 * change or the text buffer changes. See bug 64518 on
7311 * bugzilla.gnome.org for status of fixing this issue.
7315 gtk_text_view_add_child_in_window (GtkTextView *text_view,
7317 GtkTextWindowType which_window,
7321 GtkTextViewChild *vc;
7323 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
7324 g_return_if_fail (GTK_IS_WIDGET (child));
7325 g_return_if_fail (child->parent == NULL);
7327 vc = text_view_child_new_window (child, which_window,
7330 add_child (text_view, vc);
7332 g_assert (vc->widget == child);
7333 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
7337 * gtk_text_view_move_child:
7338 * @text_view: a #GtkTextView
7339 * @child: child widget already added to the text view
7340 * @xpos: new X position in window coordinates
7341 * @ypos: new Y position in window coordinates
7343 * Updates the position of a child, as for gtk_text_view_add_child_in_window().
7347 gtk_text_view_move_child (GtkTextView *text_view,
7352 GtkTextViewChild *vc;
7354 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
7355 g_return_if_fail (GTK_IS_WIDGET (child));
7356 g_return_if_fail (child->parent == (GtkWidget*) text_view);
7358 vc = g_object_get_data (G_OBJECT (child),
7359 "gtk-text-view-child");
7361 g_assert (vc != NULL);
7363 if (vc->x == xpos &&
7370 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (text_view))
7371 gtk_widget_queue_resize (child);
7375 /* Iterator operations */
7378 * gtk_text_view_forward_display_line:
7379 * @text_view: a #GtkTextView
7380 * @iter: a #GtkTextIter
7382 * Moves the given @iter forward by one display (wrapped) line. A
7383 * display line is different from a paragraph. Paragraphs are
7384 * separated by newlines or other paragraph separator characters.
7385 * Display lines are created by line-wrapping a paragraph. If
7386 * wrapping is turned off, display lines and paragraphs will be the
7387 * same. Display lines are divided differently for each view, since
7388 * they depend on the view's width; paragraphs are the same in all
7389 * views, since they depend on the contents of the #GtkTextBuffer.
7391 * Return value: %TRUE if @iter was moved and is not on the end iterator
7394 gtk_text_view_forward_display_line (GtkTextView *text_view,
7397 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
7398 g_return_val_if_fail (iter != NULL, FALSE);
7400 gtk_text_view_ensure_layout (text_view);
7402 return gtk_text_layout_move_iter_to_next_line (text_view->layout, iter);
7406 * gtk_text_view_backward_display_line:
7407 * @text_view: a #GtkTextView
7408 * @iter: a #GtkTextIter
7410 * Moves the given @iter backward by one display (wrapped) line. A
7411 * display line is different from a paragraph. Paragraphs are
7412 * separated by newlines or other paragraph separator characters.
7413 * Display lines are created by line-wrapping a paragraph. If
7414 * wrapping is turned off, display lines and paragraphs will be the
7415 * same. Display lines are divided differently for each view, since
7416 * they depend on the view's width; paragraphs are the same in all
7417 * views, since they depend on the contents of the #GtkTextBuffer.
7419 * Return value: %TRUE if @iter was moved and is not on the end iterator
7422 gtk_text_view_backward_display_line (GtkTextView *text_view,
7425 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
7426 g_return_val_if_fail (iter != NULL, FALSE);
7428 gtk_text_view_ensure_layout (text_view);
7430 return gtk_text_layout_move_iter_to_previous_line (text_view->layout, iter);
7434 * gtk_text_view_forward_display_line_end:
7435 * @text_view: a #GtkTextView
7436 * @iter: a #GtkTextIter
7438 * Moves the given @iter forward to the next display line end. A
7439 * display line is different from a paragraph. Paragraphs are
7440 * separated by newlines or other paragraph separator characters.
7441 * Display lines are created by line-wrapping a paragraph. If
7442 * wrapping is turned off, display lines and paragraphs will be the
7443 * same. Display lines are divided differently for each view, since
7444 * they depend on the view's width; paragraphs are the same in all
7445 * views, since they depend on the contents of the #GtkTextBuffer.
7447 * Return value: %TRUE if @iter was moved and is not on the end iterator
7450 gtk_text_view_forward_display_line_end (GtkTextView *text_view,
7453 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
7454 g_return_val_if_fail (iter != NULL, FALSE);
7456 gtk_text_view_ensure_layout (text_view);
7458 return gtk_text_layout_move_iter_to_line_end (text_view->layout, iter, 1);
7462 * gtk_text_view_backward_display_line_start:
7463 * @text_view: a #GtkTextView
7464 * @iter: a #GtkTextIter
7466 * Moves the given @iter backward to the next display line start. A
7467 * display line is different from a paragraph. Paragraphs are
7468 * separated by newlines or other paragraph separator characters.
7469 * Display lines are created by line-wrapping a paragraph. If
7470 * wrapping is turned off, display lines and paragraphs will be the
7471 * same. Display lines are divided differently for each view, since
7472 * they depend on the view's width; paragraphs are the same in all
7473 * views, since they depend on the contents of the #GtkTextBuffer.
7475 * Return value: %TRUE if @iter was moved and is not on the end iterator
7478 gtk_text_view_backward_display_line_start (GtkTextView *text_view,
7481 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
7482 g_return_val_if_fail (iter != NULL, FALSE);
7484 gtk_text_view_ensure_layout (text_view);
7486 return gtk_text_layout_move_iter_to_line_end (text_view->layout, iter, -1);
7490 * gtk_text_view_starts_display_line:
7491 * @text_view: a #GtkTextView
7492 * @iter: a #GtkTextIter
7494 * Determines whether @iter is at the start of a display line.
7495 * See gtk_text_view_forward_display_line() for an explanation of
7496 * display lines vs. paragraphs.
7498 * Return value: %TRUE if @iter begins a wrapped line
7501 gtk_text_view_starts_display_line (GtkTextView *text_view,
7502 const GtkTextIter *iter)
7504 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
7505 g_return_val_if_fail (iter != NULL, FALSE);
7507 gtk_text_view_ensure_layout (text_view);
7509 return gtk_text_layout_iter_starts_line (text_view->layout, iter);
7513 * gtk_text_view_move_visually:
7514 * @text_view: a #GtkTextView
7515 * @iter: a #GtkTextIter
7516 * @count: number of lines to move
7518 * Moves @iter up or down by @count display (wrapped) lines.
7519 * See gtk_text_view_forward_display_line() for an explanation of
7520 * display lines vs. paragraphs.
7522 * Return value: %TRUE if @iter moved and is not on the end iterator
7525 gtk_text_view_move_visually (GtkTextView *text_view,
7529 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
7530 g_return_val_if_fail (iter != NULL, FALSE);
7532 gtk_text_view_ensure_layout (text_view);
7534 return gtk_text_layout_move_iter_visually (text_view->layout, iter, count);