1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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/.
27 #undef GDK_DISABLE_DEPRECATED
28 #undef GTK_DISABLE_DEPRECATED
33 #include "gdk/gdkkeysyms.h"
34 #include "gdk/gdki18n.h"
36 #include "gtkmarshalers.h"
37 #include "gtkselection.h"
38 #include "gtksignal.h"
40 #include "gtkobject.h"
41 #define GTK_ENABLE_BROKEN
43 #include "line-wrap.xbm"
44 #include "line-arrow.xbm"
45 #include "gtkprivate.h"
50 #define INITIAL_BUFFER_SIZE 1024
51 #define INITIAL_LINE_CACHE_SIZE 256
52 #define MIN_GAP_SIZE 256
53 #define LINE_DELIM '\n'
54 #define MIN_TEXT_WIDTH_LINES 20
55 #define MIN_TEXT_HEIGHT_LINES 10
56 #define TEXT_BORDER_ROOM 1
57 #define LINE_WRAP_ROOM 8 /* The bitmaps are 6 wide. */
58 #define DEFAULT_TAB_STOP_WIDTH 4
59 #define SCROLL_PIXELS 5
60 #define KEY_SCROLL_PIXELS 10
61 #define SCROLL_TIME 100
62 #define FREEZE_LENGTH 1024
63 /* Freeze text when inserting or deleting more than this many characters */
65 #define SET_PROPERTY_MARK(m, p, o) do { \
66 (m)->property = (p); \
69 #define MARK_CURRENT_PROPERTY(mark) ((TextProperty*)(mark)->property->data)
70 #define MARK_NEXT_PROPERTY(mark) ((TextProperty*)(mark)->property->next->data)
71 #define MARK_PREV_PROPERTY(mark) ((TextProperty*)((mark)->property->prev ? \
72 (mark)->property->prev->data \
74 #define MARK_PREV_LIST_PTR(mark) ((mark)->property->prev)
75 #define MARK_LIST_PTR(mark) ((mark)->property)
76 #define MARK_NEXT_LIST_PTR(mark) ((mark)->property->next)
77 #define MARK_OFFSET(mark) ((mark)->offset)
78 #define MARK_PROPERTY_LENGTH(mark) (MARK_CURRENT_PROPERTY(mark)->length)
81 #define MARK_CURRENT_FONT(text, mark) \
82 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
83 MARK_CURRENT_PROPERTY(mark)->font->gdk_font : \
84 gtk_style_get_font (GTK_WIDGET (text)->style))
85 #define MARK_CURRENT_FORE(text, mark) \
86 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FOREGROUND) ? \
87 &MARK_CURRENT_PROPERTY(mark)->fore_color : \
88 &((GtkWidget *)text)->style->text[((GtkWidget *)text)->state])
89 #define MARK_CURRENT_BACK(text, mark) \
90 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_BACKGROUND) ? \
91 &MARK_CURRENT_PROPERTY(mark)->back_color : \
92 &((GtkWidget *)text)->style->base[((GtkWidget *)text)->state])
93 #define MARK_CURRENT_TEXT_FONT(text, mark) \
94 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
95 MARK_CURRENT_PROPERTY(mark)->font : \
98 #define TEXT_LENGTH(t) ((t)->text_end - (t)->gap_size)
99 #define FONT_HEIGHT(f) ((f)->ascent + (f)->descent)
100 #define LINE_HEIGHT(l) ((l).font_ascent + (l).font_descent)
101 #define LINE_CONTAINS(l, i) ((l).start.index <= (i) && (l).end.index >= (i))
102 #define LINE_STARTS_AT(l, i) ((l).start.index == (i))
103 #define LINE_START_PIXEL(l) ((l).tab_cont.pixel_offset)
104 #define LAST_INDEX(t, m) ((m).index == TEXT_LENGTH(t))
105 #define CACHE_DATA(c) (*(LineParams*)(c)->data)
115 typedef struct _TextProperty TextProperty;
116 typedef struct _TabStopMark TabStopMark;
117 typedef struct _PrevTabCont PrevTabCont;
118 typedef struct _FetchLinesData FetchLinesData;
119 typedef struct _LineParams LineParams;
120 typedef struct _SetVerticalScrollData SetVerticalScrollData;
122 typedef gint (*LineIteratorFunction) (GtkText* text, LineParams* lp, void* data);
130 struct _SetVerticalScrollData {
132 gint last_didnt_wrap;
133 gint last_line_start;
134 GtkPropertyMark mark;
139 /* The actual font. */
143 gint16 char_widths[256];
147 PROPERTY_FONT = 1 << 0,
148 PROPERTY_FOREGROUND = 1 << 1,
149 PROPERTY_BACKGROUND = 1 << 2
157 /* Background Color. */
160 /* Foreground Color. */
163 /* Show which properties are set */
164 TextPropertyFlags flags;
166 /* Length of this property. */
172 GList* tab_stops; /* Index into list containing the next tab position. If
173 * NULL, using default widths. */
180 TabStopMark tab_start;
183 struct _FetchLinesData
196 guint displayable_chars;
199 PrevTabCont tab_cont;
200 PrevTabCont tab_cont_next;
202 GtkPropertyMark start;
207 static void gtk_text_class_init (GtkTextClass *klass);
208 static void gtk_text_set_property (GObject *object,
212 static void gtk_text_get_property (GObject *object,
216 static void gtk_text_editable_init (GtkEditableClass *iface);
217 static void gtk_text_init (GtkText *text);
218 static void gtk_text_destroy (GtkObject *object);
219 static void gtk_text_finalize (GObject *object);
220 static void gtk_text_realize (GtkWidget *widget);
221 static void gtk_text_unrealize (GtkWidget *widget);
222 static void gtk_text_style_set (GtkWidget *widget,
223 GtkStyle *previous_style);
224 static void gtk_text_state_changed (GtkWidget *widget,
225 GtkStateType previous_state);
226 static void gtk_text_draw_focus (GtkWidget *widget);
227 static void gtk_text_size_request (GtkWidget *widget,
228 GtkRequisition *requisition);
229 static void gtk_text_size_allocate (GtkWidget *widget,
230 GtkAllocation *allocation);
231 static void gtk_text_adjustment (GtkAdjustment *adjustment,
233 static void gtk_text_insert_text (GtkEditable *editable,
234 const gchar *new_text,
235 gint new_text_length,
237 static void gtk_text_delete_text (GtkEditable *editable,
240 static void gtk_text_update_text (GtkOldEditable *old_editable,
243 static gchar *gtk_text_get_chars (GtkOldEditable *old_editable,
246 static void gtk_text_set_selection (GtkOldEditable *old_editable,
249 static void gtk_text_real_set_editable (GtkOldEditable *old_editable,
250 gboolean is_editable);
252 static void gtk_text_adjustment_destroyed (GtkAdjustment *adjustment,
256 static gint gtk_text_expose (GtkWidget *widget,
257 GdkEventExpose *event);
258 static gint gtk_text_button_press (GtkWidget *widget,
259 GdkEventButton *event);
260 static gint gtk_text_button_release (GtkWidget *widget,
261 GdkEventButton *event);
262 static gint gtk_text_motion_notify (GtkWidget *widget,
263 GdkEventMotion *event);
264 static gint gtk_text_key_press (GtkWidget *widget,
267 static void move_gap (GtkText* text, guint index);
268 static void make_forward_space (GtkText* text, guint len);
270 /* Property management */
271 static GtkTextFont* get_text_font (GdkFont* gfont);
272 static void text_font_unref (GtkTextFont *text_font);
274 static void insert_text_property (GtkText* text, GdkFont* font,
275 const GdkColor *fore, const GdkColor* back, guint len);
276 static TextProperty* new_text_property (GtkText *text, GdkFont* font,
277 const GdkColor* fore, const GdkColor* back, guint length);
278 static void destroy_text_property (TextProperty *prop);
279 static void init_properties (GtkText *text);
280 static void realize_property (GtkText *text, TextProperty *prop);
281 static void realize_properties (GtkText *text);
282 static void unrealize_property (GtkText *text, TextProperty *prop);
283 static void unrealize_properties (GtkText *text);
285 static void delete_text_property (GtkText* text, guint len);
287 static guint pixel_height_of (GtkText* text, GList* cache_line);
289 /* Property Movement and Size Computations */
290 static void advance_mark (GtkPropertyMark* mark);
291 static void decrement_mark (GtkPropertyMark* mark);
292 static void advance_mark_n (GtkPropertyMark* mark, gint n);
293 static void decrement_mark_n (GtkPropertyMark* mark, gint n);
294 static void move_mark_n (GtkPropertyMark* mark, gint n);
295 static GtkPropertyMark find_mark (GtkText* text, guint mark_position);
296 static GtkPropertyMark find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near);
297 static void find_line_containing_point (GtkText* text, guint point,
301 static void compute_lines_pixels (GtkText* text, guint char_count,
302 guint *lines, guint *pixels);
304 static gint total_line_height (GtkText* text,
307 static LineParams find_line_params (GtkText* text,
308 const GtkPropertyMark *mark,
309 const PrevTabCont *tab_cont,
310 PrevTabCont *next_cont);
311 static void recompute_geometry (GtkText* text);
312 static void insert_expose (GtkText* text, guint old_pixels, gint nchars, guint new_line_count);
313 static void delete_expose (GtkText* text,
317 static GdkGC *create_bg_gc (GtkText *text);
318 static void clear_area (GtkText *text, GdkRectangle *area);
319 static void draw_line (GtkText* text,
322 static void draw_line_wrap (GtkText* text,
324 static void draw_cursor (GtkText* text, gint absolute);
325 static void undraw_cursor (GtkText* text, gint absolute);
326 static gint drawn_cursor_min (GtkText* text);
327 static gint drawn_cursor_max (GtkText* text);
328 static void expose_text (GtkText* text, GdkRectangle *area, gboolean cursor);
330 /* Search and Placement. */
331 static void find_cursor (GtkText* text,
333 static void find_cursor_at_line (GtkText* text,
334 const LineParams* start_line,
336 static void find_mouse_cursor (GtkText* text, gint x, gint y);
339 static void adjust_adj (GtkText* text, GtkAdjustment* adj);
340 static void scroll_up (GtkText* text, gint diff);
341 static void scroll_down (GtkText* text, gint diff);
342 static void scroll_int (GtkText* text, gint diff);
344 static void process_exposes (GtkText *text);
346 /* Cache Management. */
347 static void free_cache (GtkText* text);
348 static GList* remove_cache_line (GtkText* text, GList* list);
351 static void move_cursor_buffer_ver (GtkText *text, int dir);
352 static void move_cursor_page_ver (GtkText *text, int dir);
353 static void move_cursor_ver (GtkText *text, int count);
354 static void move_cursor_hor (GtkText *text, int count);
356 /* Binding actions */
357 static void gtk_text_move_cursor (GtkOldEditable *old_editable,
360 static void gtk_text_move_word (GtkOldEditable *old_editable,
362 static void gtk_text_move_page (GtkOldEditable *old_editable,
365 static void gtk_text_move_to_row (GtkOldEditable *old_editable,
367 static void gtk_text_move_to_column (GtkOldEditable *old_editable,
369 static void gtk_text_kill_char (GtkOldEditable *old_editable,
371 static void gtk_text_kill_word (GtkOldEditable *old_editable,
373 static void gtk_text_kill_line (GtkOldEditable *old_editable,
377 static void gtk_text_move_forward_character (GtkText *text);
378 static void gtk_text_move_backward_character (GtkText *text);
379 static void gtk_text_move_forward_word (GtkText *text);
380 static void gtk_text_move_backward_word (GtkText *text);
381 static void gtk_text_move_beginning_of_line (GtkText *text);
382 static void gtk_text_move_end_of_line (GtkText *text);
383 static void gtk_text_move_next_line (GtkText *text);
384 static void gtk_text_move_previous_line (GtkText *text);
386 static void gtk_text_delete_forward_character (GtkText *text);
387 static void gtk_text_delete_backward_character (GtkText *text);
388 static void gtk_text_delete_forward_word (GtkText *text);
389 static void gtk_text_delete_backward_word (GtkText *text);
390 static void gtk_text_delete_line (GtkText *text);
391 static void gtk_text_delete_to_line_end (GtkText *text);
392 static void gtk_text_select_word (GtkText *text,
394 static void gtk_text_select_line (GtkText *text,
397 static void gtk_text_set_position (GtkOldEditable *old_editable,
400 /* #define DEBUG_GTK_TEXT */
402 #if defined(DEBUG_GTK_TEXT) && defined(__GNUC__)
403 /* Debugging utilities. */
404 static void gtk_text_assert_mark (GtkText *text,
405 GtkPropertyMark *mark,
406 GtkPropertyMark *before,
407 GtkPropertyMark *after,
412 static void gtk_text_assert (GtkText *text,
415 static void gtk_text_show_cache_line (GtkText *text, GList *cache,
416 const char* what, const char* func, gint line);
417 static void gtk_text_show_cache (GtkText *text, const char* func, gint line);
418 static void gtk_text_show_adj (GtkText *text,
423 static void gtk_text_show_props (GtkText* test,
427 #define TDEBUG(args) g_message args
428 #define TEXT_ASSERT(text) gtk_text_assert (text,__PRETTY_FUNCTION__,__LINE__)
429 #define TEXT_ASSERT_MARK(text,mark,msg) gtk_text_assert_mark (text,mark, \
430 __PRETTY_FUNCTION__,msg,__LINE__)
431 #define TEXT_SHOW(text) gtk_text_show_cache (text, __PRETTY_FUNCTION__,__LINE__)
432 #define TEXT_SHOW_LINE(text,line,msg) gtk_text_show_cache_line (text,line,msg,\
433 __PRETTY_FUNCTION__,__LINE__)
434 #define TEXT_SHOW_ADJ(text,adj,msg) gtk_text_show_adj (text,adj,msg, \
435 __PRETTY_FUNCTION__,__LINE__)
438 #define TEXT_ASSERT(text)
439 #define TEXT_ASSERT_MARK(text,mark,msg)
440 #define TEXT_SHOW(text)
441 #define TEXT_SHOW_LINE(text,line,msg)
442 #define TEXT_SHOW_ADJ(text,adj,msg)
445 static GtkWidgetClass *parent_class = NULL;
447 /**********************************************************************/
449 /**********************************************************************/
452 gtk_text_get_type (void)
454 static GtkType text_type = 0;
458 static const GtkTypeInfo text_info =
462 sizeof (GtkTextClass),
463 (GtkClassInitFunc) gtk_text_class_init,
464 (GtkObjectInitFunc) gtk_text_init,
465 /* reserved_1 */ NULL,
466 /* reserved_2 */ NULL,
467 (GtkClassInitFunc) NULL,
470 static const GInterfaceInfo editable_info =
472 (GInterfaceInitFunc) gtk_text_editable_init, /* interface_init */
473 NULL, /* interface_finalize */
474 NULL /* interface_data */
478 text_type = gtk_type_unique (GTK_TYPE_OLD_EDITABLE, &text_info);
479 g_type_add_interface_static (text_type,
488 gtk_text_class_init (GtkTextClass *class)
490 GObjectClass *gobject_class;
491 GtkObjectClass *object_class;
492 GtkWidgetClass *widget_class;
493 GtkOldEditableClass *old_editable_class;
495 gobject_class = G_OBJECT_CLASS (class);
496 object_class = (GtkObjectClass*) class;
497 widget_class = (GtkWidgetClass*) class;
498 old_editable_class = (GtkOldEditableClass*) class;
499 parent_class = gtk_type_class (GTK_TYPE_OLD_EDITABLE);
501 gobject_class->finalize = gtk_text_finalize;
502 gobject_class->set_property = gtk_text_set_property;
503 gobject_class->get_property = gtk_text_get_property;
505 object_class->destroy = gtk_text_destroy;
507 widget_class->realize = gtk_text_realize;
508 widget_class->unrealize = gtk_text_unrealize;
509 widget_class->style_set = gtk_text_style_set;
510 widget_class->state_changed = gtk_text_state_changed;
511 widget_class->size_request = gtk_text_size_request;
512 widget_class->size_allocate = gtk_text_size_allocate;
513 widget_class->expose_event = gtk_text_expose;
514 widget_class->button_press_event = gtk_text_button_press;
515 widget_class->button_release_event = gtk_text_button_release;
516 widget_class->motion_notify_event = gtk_text_motion_notify;
517 widget_class->key_press_event = gtk_text_key_press;
519 old_editable_class->set_editable = gtk_text_real_set_editable;
521 old_editable_class->move_cursor = gtk_text_move_cursor;
522 old_editable_class->move_word = gtk_text_move_word;
523 old_editable_class->move_page = gtk_text_move_page;
524 old_editable_class->move_to_row = gtk_text_move_to_row;
525 old_editable_class->move_to_column = gtk_text_move_to_column;
527 old_editable_class->kill_char = gtk_text_kill_char;
528 old_editable_class->kill_word = gtk_text_kill_word;
529 old_editable_class->kill_line = gtk_text_kill_line;
531 old_editable_class->update_text = gtk_text_update_text;
532 old_editable_class->get_chars = gtk_text_get_chars;
533 old_editable_class->set_selection = gtk_text_set_selection;
534 old_editable_class->set_position = gtk_text_set_position;
536 class->set_scroll_adjustments = gtk_text_set_adjustments;
538 g_object_class_install_property (gobject_class,
540 g_param_spec_object ("hadjustment",
541 P_("Horizontal Adjustment"),
542 P_("Horizontal adjustment for the text widget"),
544 GTK_PARAM_READWRITE));
546 g_object_class_install_property (gobject_class,
548 g_param_spec_object ("vadjustment",
549 P_("Vertical Adjustment"),
550 P_("Vertical adjustment for the text widget"),
552 GTK_PARAM_READWRITE));
554 g_object_class_install_property (gobject_class,
556 g_param_spec_boolean ("line-wrap",
558 P_("Whether lines are wrapped at widget edges"),
560 GTK_PARAM_READWRITE));
562 g_object_class_install_property (gobject_class,
564 g_param_spec_boolean ("word-wrap",
566 P_("Whether words are wrapped at widget edges"),
568 GTK_PARAM_READWRITE));
570 widget_class->set_scroll_adjustments_signal =
571 gtk_signal_new (I_("set_scroll_adjustments"),
573 GTK_CLASS_TYPE (object_class),
574 GTK_SIGNAL_OFFSET (GtkTextClass, set_scroll_adjustments),
575 _gtk_marshal_VOID__OBJECT_OBJECT,
576 GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
580 gtk_text_set_property (GObject *object,
587 text = GTK_TEXT (object);
591 case PROP_HADJUSTMENT:
592 gtk_text_set_adjustments (text,
593 g_value_get_object (value),
596 case PROP_VADJUSTMENT:
597 gtk_text_set_adjustments (text,
599 g_value_get_object (value));
602 gtk_text_set_line_wrap (text, g_value_get_boolean (value));
605 gtk_text_set_word_wrap (text, g_value_get_boolean (value));
608 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
614 gtk_text_get_property (GObject *object,
621 text = GTK_TEXT (object);
625 case PROP_HADJUSTMENT:
626 g_value_set_object (value, text->hadj);
628 case PROP_VADJUSTMENT:
629 g_value_set_object (value, text->vadj);
632 g_value_set_boolean (value, text->line_wrap);
635 g_value_set_boolean (value, text->word_wrap);
638 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
644 gtk_text_editable_init (GtkEditableClass *iface)
646 iface->insert_text = gtk_text_insert_text;
647 iface->delete_text = gtk_text_delete_text;
651 gtk_text_init (GtkText *text)
653 GTK_WIDGET_SET_FLAGS (text, GTK_CAN_FOCUS);
655 text->text_area = NULL;
660 text->line_wrap_bitmap = NULL;
661 text->line_arrow_bitmap = NULL;
663 text->use_wchar = FALSE;
664 text->text.ch = g_new (guchar, INITIAL_BUFFER_SIZE);
665 text->text_len = INITIAL_BUFFER_SIZE;
667 text->scratch_buffer.ch = NULL;
668 text->scratch_buffer_len = 0;
670 text->freeze_count = 0;
672 text->default_tab_width = 4;
673 text->tab_stops = NULL;
675 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
676 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
678 text->line_start_cache = NULL;
679 text->first_cut_pixels = 0;
681 text->line_wrap = TRUE;
682 text->word_wrap = FALSE;
687 text->current_font = NULL;
689 init_properties (text);
691 GTK_OLD_EDITABLE (text)->editable = FALSE;
693 gtk_text_set_adjustments (text, NULL, NULL);
694 gtk_editable_set_position (GTK_EDITABLE (text), 0);
698 gtk_text_new (GtkAdjustment *hadj,
704 g_return_val_if_fail (GTK_IS_ADJUSTMENT (hadj), NULL);
706 g_return_val_if_fail (GTK_IS_ADJUSTMENT (vadj), NULL);
708 text = gtk_widget_new (GTK_TYPE_TEXT,
717 gtk_text_set_word_wrap (GtkText *text,
720 g_return_if_fail (GTK_IS_TEXT (text));
722 text->word_wrap = (word_wrap != FALSE);
724 if (GTK_WIDGET_REALIZED (text))
726 recompute_geometry (text);
727 gtk_widget_queue_draw (GTK_WIDGET (text));
730 g_object_notify (G_OBJECT (text), "word-wrap");
734 gtk_text_set_line_wrap (GtkText *text,
737 g_return_if_fail (GTK_IS_TEXT (text));
739 text->line_wrap = (line_wrap != FALSE);
741 if (GTK_WIDGET_REALIZED (text))
743 recompute_geometry (text);
744 gtk_widget_queue_draw (GTK_WIDGET (text));
747 g_object_notify (G_OBJECT (text), "line-wrap");
751 gtk_text_set_editable (GtkText *text,
752 gboolean is_editable)
754 g_return_if_fail (GTK_IS_TEXT (text));
756 gtk_editable_set_editable (GTK_EDITABLE (text), is_editable);
760 gtk_text_real_set_editable (GtkOldEditable *old_editable,
761 gboolean is_editable)
765 g_return_if_fail (GTK_IS_TEXT (old_editable));
767 text = GTK_TEXT (old_editable);
769 old_editable->editable = (is_editable != FALSE);
772 draw_cursor (text, TRUE);
774 undraw_cursor (text, TRUE);
778 gtk_text_set_adjustments (GtkText *text,
782 g_return_if_fail (GTK_IS_TEXT (text));
784 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
786 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
788 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
790 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
792 if (text->hadj && (text->hadj != hadj))
794 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
795 gtk_object_unref (GTK_OBJECT (text->hadj));
798 if (text->vadj && (text->vadj != vadj))
800 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
801 gtk_object_unref (GTK_OBJECT (text->vadj));
804 g_object_freeze_notify (G_OBJECT (text));
805 if (text->hadj != hadj)
808 g_object_ref_sink (text->hadj);
810 gtk_signal_connect (GTK_OBJECT (text->hadj), "changed",
811 (GtkSignalFunc) gtk_text_adjustment,
813 gtk_signal_connect (GTK_OBJECT (text->hadj), "value_changed",
814 (GtkSignalFunc) gtk_text_adjustment,
816 gtk_signal_connect (GTK_OBJECT (text->hadj), "destroy",
817 (GtkSignalFunc) gtk_text_adjustment_destroyed,
819 gtk_text_adjustment (hadj, text);
821 g_object_notify (G_OBJECT (text), "hadjustment");
824 if (text->vadj != vadj)
827 g_object_ref_sink (text->vadj);
829 gtk_signal_connect (GTK_OBJECT (text->vadj), "changed",
830 (GtkSignalFunc) gtk_text_adjustment,
832 gtk_signal_connect (GTK_OBJECT (text->vadj), "value_changed",
833 (GtkSignalFunc) gtk_text_adjustment,
835 gtk_signal_connect (GTK_OBJECT (text->vadj), "destroy",
836 (GtkSignalFunc) gtk_text_adjustment_destroyed,
838 gtk_text_adjustment (vadj, text);
840 g_object_notify (G_OBJECT (text), "vadjustment");
842 g_object_thaw_notify (G_OBJECT (text));
846 gtk_text_set_point (GtkText *text,
849 g_return_if_fail (GTK_IS_TEXT (text));
850 g_return_if_fail (index <= TEXT_LENGTH (text));
852 text->point = find_mark (text, index);
856 gtk_text_get_point (GtkText *text)
858 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
860 return text->point.index;
864 gtk_text_get_length (GtkText *text)
866 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
868 return TEXT_LENGTH (text);
872 gtk_text_freeze (GtkText *text)
874 g_return_if_fail (GTK_IS_TEXT (text));
876 text->freeze_count++;
880 gtk_text_thaw (GtkText *text)
882 g_return_if_fail (GTK_IS_TEXT (text));
884 if (text->freeze_count)
885 if (!(--text->freeze_count) && GTK_WIDGET_REALIZED (text))
887 recompute_geometry (text);
888 gtk_widget_queue_draw (GTK_WIDGET (text));
893 gtk_text_insert (GtkText *text,
895 const GdkColor *fore,
896 const GdkColor *back,
900 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
901 gboolean frozen = FALSE;
903 gint new_line_count = 1;
904 guint old_height = 0;
909 g_return_if_fail (GTK_IS_TEXT (text));
912 length = strlen (chars);
919 if (!text->freeze_count && (length > FREEZE_LENGTH))
921 gtk_text_freeze (text);
925 if (!text->freeze_count && (text->line_start_cache != NULL))
927 find_line_containing_point (text, text->point.index, TRUE);
928 old_height = total_line_height (text, text->current_line, 1);
931 if ((TEXT_LENGTH (text) == 0) && (text->use_wchar == FALSE))
933 GtkWidget *widget = GTK_WIDGET (text);
935 gtk_widget_ensure_style (widget);
936 if ((widget->style) &&
937 (gtk_style_get_font (widget->style)->type == GDK_FONT_FONTSET))
939 text->use_wchar = TRUE;
940 g_free (text->text.ch);
941 text->text.wc = g_new (GdkWChar, INITIAL_BUFFER_SIZE);
942 text->text_len = INITIAL_BUFFER_SIZE;
943 g_free (text->scratch_buffer.ch);
944 text->scratch_buffer.wc = NULL;
945 text->scratch_buffer_len = 0;
949 move_gap (text, text->point.index);
950 make_forward_space (text, length);
954 char *chars_nt = (char *)chars;
957 chars_nt = g_new (char, length+1);
958 memcpy (chars_nt, chars, length);
959 chars_nt[length] = 0;
961 numwcs = gdk_mbstowcs (text->text.wc + text->gap_position, chars_nt,
963 if (chars_nt != chars)
971 memcpy(text->text.ch + text->gap_position, chars, length);
974 if (!text->freeze_count && (text->line_start_cache != NULL))
978 for (i=0; i<numwcs; i++)
979 if (text->text.wc[text->gap_position + i] == '\n')
984 for (i=0; i<numwcs; i++)
985 if (text->text.ch[text->gap_position + i] == '\n')
992 insert_text_property (text, font, fore, back, numwcs);
994 text->gap_size -= numwcs;
995 text->gap_position += numwcs;
997 if (text->point.index < text->first_line_start_index)
998 text->first_line_start_index += numwcs;
999 if (text->point.index < old_editable->selection_start_pos)
1000 old_editable->selection_start_pos += numwcs;
1001 if (text->point.index < old_editable->selection_end_pos)
1002 old_editable->selection_end_pos += numwcs;
1003 /* We'll reset the cursor later anyways if we aren't frozen */
1004 if (text->point.index < text->cursor_mark.index)
1005 text->cursor_mark.index += numwcs;
1007 advance_mark_n (&text->point, numwcs);
1009 if (!text->freeze_count && (text->line_start_cache != NULL))
1010 insert_expose (text, old_height, numwcs, new_line_count);
1014 gtk_text_thaw (text);
1018 gtk_text_backward_delete (GtkText *text,
1021 g_return_val_if_fail (GTK_IS_TEXT (text), FALSE);
1023 if (nchars > text->point.index || nchars <= 0)
1026 gtk_text_set_point (text, text->point.index - nchars);
1028 return gtk_text_forward_delete (text, nchars);
1032 gtk_text_forward_delete (GtkText *text,
1035 guint old_lines = 0, old_height = 0;
1036 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
1037 gboolean frozen = FALSE;
1039 g_return_val_if_fail (GTK_IS_TEXT (text), FALSE);
1041 if (text->point.index + nchars > TEXT_LENGTH (text) || nchars <= 0)
1044 if (!text->freeze_count && nchars > FREEZE_LENGTH)
1046 gtk_text_freeze (text);
1050 if (!text->freeze_count && text->line_start_cache != NULL)
1052 /* We need to undraw the cursor here, since we may later
1053 * delete the cursor's property
1055 undraw_cursor (text, FALSE);
1056 find_line_containing_point (text, text->point.index, TRUE);
1057 compute_lines_pixels (text, nchars, &old_lines, &old_height);
1060 /* FIXME, or resizing after deleting will be odd */
1061 if (text->point.index < text->first_line_start_index)
1063 if (text->point.index + nchars >= text->first_line_start_index)
1065 text->first_line_start_index = text->point.index;
1066 while ((text->first_line_start_index > 0) &&
1067 (GTK_TEXT_INDEX (text, text->first_line_start_index - 1)
1069 text->first_line_start_index -= 1;
1073 text->first_line_start_index -= nchars;
1076 if (text->point.index < old_editable->selection_start_pos)
1077 old_editable->selection_start_pos -=
1078 MIN(nchars, old_editable->selection_start_pos - text->point.index);
1079 if (text->point.index < old_editable->selection_end_pos)
1080 old_editable->selection_end_pos -=
1081 MIN(nchars, old_editable->selection_end_pos - text->point.index);
1082 /* We'll reset the cursor later anyways if we aren't frozen */
1083 if (text->point.index < text->cursor_mark.index)
1084 move_mark_n (&text->cursor_mark,
1085 -MIN(nchars, text->cursor_mark.index - text->point.index));
1087 move_gap (text, text->point.index);
1089 text->gap_size += nchars;
1091 delete_text_property (text, nchars);
1093 if (!text->freeze_count && (text->line_start_cache != NULL))
1095 delete_expose (text, nchars, old_lines, old_height);
1096 draw_cursor (text, FALSE);
1100 gtk_text_thaw (text);
1106 gtk_text_set_position (GtkOldEditable *old_editable,
1109 GtkText *text = (GtkText *) old_editable;
1112 position = gtk_text_get_length (text);
1114 undraw_cursor (text, FALSE);
1115 text->cursor_mark = find_mark (text, position);
1116 find_cursor (text, TRUE);
1117 draw_cursor (text, FALSE);
1118 gtk_editable_select_region (GTK_EDITABLE (old_editable), 0, 0);
1122 gtk_text_get_chars (GtkOldEditable *old_editable,
1130 g_return_val_if_fail (GTK_IS_TEXT (old_editable), NULL);
1131 text = GTK_TEXT (old_editable);
1134 end_pos = TEXT_LENGTH (text);
1136 if ((start_pos < 0) ||
1137 (end_pos > TEXT_LENGTH (text)) ||
1138 (end_pos < start_pos))
1141 move_gap (text, TEXT_LENGTH (text));
1142 make_forward_space (text, 1);
1144 if (text->use_wchar)
1147 ch = text->text.wc[end_pos];
1148 text->text.wc[end_pos] = 0;
1149 retval = gdk_wcstombs (text->text.wc + start_pos);
1150 text->text.wc[end_pos] = ch;
1155 ch = text->text.ch[end_pos];
1156 text->text.ch[end_pos] = 0;
1157 retval = g_strdup (text->text.ch + start_pos);
1158 text->text.ch[end_pos] = ch;
1166 gtk_text_destroy (GtkObject *object)
1170 g_return_if_fail (GTK_IS_TEXT (object));
1172 text = GTK_TEXT (object);
1176 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
1177 gtk_object_unref (GTK_OBJECT (text->hadj));
1182 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
1183 gtk_object_unref (GTK_OBJECT (text->vadj));
1189 g_source_remove (text->timer);
1193 GTK_OBJECT_CLASS(parent_class)->destroy (object);
1197 gtk_text_finalize (GObject *object)
1202 g_return_if_fail (GTK_IS_TEXT (object));
1204 text = GTK_TEXT (object);
1206 /* Clean up the internal structures */
1207 if (text->use_wchar)
1208 g_free (text->text.wc);
1210 g_free (text->text.ch);
1212 tmp_list = text->text_properties;
1215 destroy_text_property (tmp_list->data);
1216 tmp_list = tmp_list->next;
1219 if (text->current_font)
1220 text_font_unref (text->current_font);
1222 g_list_free (text->text_properties);
1224 if (text->use_wchar)
1226 g_free (text->scratch_buffer.wc);
1230 g_free (text->scratch_buffer.ch);
1233 g_list_free (text->tab_stops);
1235 G_OBJECT_CLASS (parent_class)->finalize (object);
1239 gtk_text_realize (GtkWidget *widget)
1242 GtkOldEditable *old_editable;
1243 GdkWindowAttr attributes;
1244 gint attributes_mask;
1246 g_return_if_fail (GTK_IS_TEXT (widget));
1248 text = GTK_TEXT (widget);
1249 old_editable = GTK_OLD_EDITABLE (widget);
1250 GTK_WIDGET_SET_FLAGS (text, GTK_REALIZED);
1252 attributes.window_type = GDK_WINDOW_CHILD;
1253 attributes.x = widget->allocation.x;
1254 attributes.y = widget->allocation.y;
1255 attributes.width = widget->allocation.width;
1256 attributes.height = widget->allocation.height;
1257 attributes.wclass = GDK_INPUT_OUTPUT;
1258 attributes.visual = gtk_widget_get_visual (widget);
1259 attributes.colormap = gtk_widget_get_colormap (widget);
1260 attributes.event_mask = gtk_widget_get_events (widget);
1261 attributes.event_mask |= (GDK_EXPOSURE_MASK |
1262 GDK_BUTTON_PRESS_MASK |
1263 GDK_BUTTON_RELEASE_MASK |
1264 GDK_BUTTON_MOTION_MASK |
1265 GDK_ENTER_NOTIFY_MASK |
1266 GDK_LEAVE_NOTIFY_MASK |
1267 GDK_KEY_PRESS_MASK);
1268 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1270 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
1271 gdk_window_set_user_data (widget->window, text);
1273 attributes.x = (widget->style->xthickness + TEXT_BORDER_ROOM);
1274 attributes.y = (widget->style->ythickness + TEXT_BORDER_ROOM);
1275 attributes.width = MAX (1, (gint)widget->allocation.width - (gint)attributes.x * 2);
1276 attributes.height = MAX (1, (gint)widget->allocation.height - (gint)attributes.y * 2);
1278 attributes.cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), GDK_XTERM);
1279 attributes_mask |= GDK_WA_CURSOR;
1281 text->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
1282 gdk_window_set_user_data (text->text_area, text);
1284 gdk_cursor_destroy (attributes.cursor); /* The X server will keep it around as long as necessary */
1286 widget->style = gtk_style_attach (widget->style, widget->window);
1288 /* Can't call gtk_style_set_background here because it's handled specially */
1289 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1290 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1292 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1293 text->bg_gc = create_bg_gc (text);
1295 text->line_wrap_bitmap = gdk_bitmap_create_from_data (text->text_area,
1296 (gchar*) line_wrap_bits,
1300 text->line_arrow_bitmap = gdk_bitmap_create_from_data (text->text_area,
1301 (gchar*) line_arrow_bits,
1305 text->gc = gdk_gc_new (text->text_area);
1306 gdk_gc_set_exposures (text->gc, TRUE);
1307 gdk_gc_set_foreground (text->gc, &widget->style->text[GTK_STATE_NORMAL]);
1309 realize_properties (text);
1310 gdk_window_show (text->text_area);
1311 init_properties (text);
1313 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
1314 gtk_old_editable_claim_selection (old_editable, TRUE, GDK_CURRENT_TIME);
1316 recompute_geometry (text);
1320 gtk_text_style_set (GtkWidget *widget,
1321 GtkStyle *previous_style)
1323 GtkText *text = GTK_TEXT (widget);
1325 if (GTK_WIDGET_REALIZED (widget))
1327 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1328 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1332 gdk_gc_destroy (text->bg_gc);
1336 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1337 text->bg_gc = create_bg_gc (text);
1339 recompute_geometry (text);
1342 if (text->current_font)
1343 text_font_unref (text->current_font);
1344 text->current_font = get_text_font (gtk_style_get_font (widget->style));
1348 gtk_text_state_changed (GtkWidget *widget,
1349 GtkStateType previous_state)
1351 GtkText *text = GTK_TEXT (widget);
1353 if (GTK_WIDGET_REALIZED (widget))
1355 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1356 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1361 gtk_text_unrealize (GtkWidget *widget)
1365 g_return_if_fail (GTK_IS_TEXT (widget));
1367 text = GTK_TEXT (widget);
1369 gdk_window_set_user_data (text->text_area, NULL);
1370 gdk_window_destroy (text->text_area);
1371 text->text_area = NULL;
1373 gdk_gc_destroy (text->gc);
1378 gdk_gc_destroy (text->bg_gc);
1382 gdk_pixmap_unref (text->line_wrap_bitmap);
1383 gdk_pixmap_unref (text->line_arrow_bitmap);
1385 unrealize_properties (text);
1389 if (GTK_WIDGET_CLASS (parent_class)->unrealize)
1390 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
1394 clear_focus_area (GtkText *text, gint area_x, gint area_y, gint area_width, gint area_height)
1396 GtkWidget *widget = GTK_WIDGET (text);
1399 gint ythick = TEXT_BORDER_ROOM + widget->style->ythickness;
1400 gint xthick = TEXT_BORDER_ROOM + widget->style->xthickness;
1404 if (area_width == 0 || area_height == 0)
1407 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1409 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
1411 gdk_gc_set_ts_origin (text->bg_gc,
1412 (- text->first_onscreen_hor_pixel + xthick) % width,
1413 (- text->first_onscreen_ver_pixel + ythick) % height);
1418 gc = widget->style->base_gc[widget->state];
1420 gdk_draw_rectangle (GTK_WIDGET (text)->window, gc, TRUE,
1421 area_x, area_y, area_width, area_height);
1425 gtk_text_draw_focus (GtkWidget *widget)
1431 g_return_if_fail (GTK_IS_TEXT (widget));
1433 text = GTK_TEXT (widget);
1435 if (GTK_WIDGET_DRAWABLE (widget))
1437 gint ythick = widget->style->ythickness;
1438 gint xthick = widget->style->xthickness;
1439 gint xextra = TEXT_BORDER_ROOM;
1440 gint yextra = TEXT_BORDER_ROOM;
1442 TDEBUG (("in gtk_text_draw_focus\n"));
1446 width = widget->allocation.width;
1447 height = widget->allocation.height;
1449 if (GTK_WIDGET_HAS_FOCUS (widget))
1458 gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
1459 NULL, widget, "text",
1461 widget->allocation.width,
1462 widget->allocation.height);
1465 gtk_paint_shadow (widget->style, widget->window,
1466 GTK_STATE_NORMAL, GTK_SHADOW_IN,
1467 NULL, widget, "text",
1468 x, y, width, height);
1472 width -= 2 * xthick;
1473 height -= 2 * ythick;
1476 clear_focus_area (text, x, y, width, yextra);
1478 clear_focus_area (text, x, y + yextra,
1479 xextra, y + height - 2 * yextra);
1481 clear_focus_area (text, x + width - xextra, y + yextra,
1482 xextra, height - 2 * ythick);
1484 clear_focus_area (text, x, x + height - yextra, width, yextra);
1488 TDEBUG (("in gtk_text_draw_focus (undrawable !!!)\n"));
1493 gtk_text_size_request (GtkWidget *widget,
1494 GtkRequisition *requisition)
1502 g_return_if_fail (GTK_IS_TEXT (widget));
1503 g_return_if_fail (requisition != NULL);
1505 xthickness = widget->style->xthickness + TEXT_BORDER_ROOM;
1506 ythickness = widget->style->ythickness + TEXT_BORDER_ROOM;
1508 font = gtk_style_get_font (widget->style);
1510 char_height = MIN_TEXT_HEIGHT_LINES * (font->ascent +
1513 char_width = MIN_TEXT_WIDTH_LINES * (gdk_text_width (font,
1514 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
1518 requisition->width = char_width + xthickness * 2;
1519 requisition->height = char_height + ythickness * 2;
1523 gtk_text_size_allocate (GtkWidget *widget,
1524 GtkAllocation *allocation)
1528 g_return_if_fail (GTK_IS_TEXT (widget));
1529 g_return_if_fail (allocation != NULL);
1531 text = GTK_TEXT (widget);
1533 widget->allocation = *allocation;
1534 if (GTK_WIDGET_REALIZED (widget))
1536 gdk_window_move_resize (widget->window,
1537 allocation->x, allocation->y,
1538 allocation->width, allocation->height);
1540 gdk_window_move_resize (text->text_area,
1541 widget->style->xthickness + TEXT_BORDER_ROOM,
1542 widget->style->ythickness + TEXT_BORDER_ROOM,
1543 MAX (1, (gint)widget->allocation.width - (gint)(widget->style->xthickness +
1544 (gint)TEXT_BORDER_ROOM) * 2),
1545 MAX (1, (gint)widget->allocation.height - (gint)(widget->style->ythickness +
1546 (gint)TEXT_BORDER_ROOM) * 2));
1548 recompute_geometry (text);
1553 gtk_text_expose (GtkWidget *widget,
1554 GdkEventExpose *event)
1556 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1557 g_return_val_if_fail (event != NULL, FALSE);
1559 if (event->window == GTK_TEXT (widget)->text_area)
1561 TDEBUG (("in gtk_text_expose (expose)\n"));
1562 expose_text (GTK_TEXT (widget), &event->area, TRUE);
1564 else if (event->count == 0)
1566 TDEBUG (("in gtk_text_expose (focus)\n"));
1567 gtk_text_draw_focus (widget);
1574 gtk_text_scroll_timeout (gpointer data)
1578 GdkModifierType mask;
1580 text = GTK_TEXT (data);
1583 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1585 if (mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK))
1587 GdkEvent *event = gdk_event_new (GDK_MOTION_NOTIFY);
1589 event->motion.is_hint = 0;
1590 event->motion.x = x;
1591 event->motion.y = y;
1592 event->motion.state = mask;
1594 gtk_text_motion_notify (GTK_WIDGET (text), (GdkEventMotion *)event);
1596 gdk_event_free (event);
1603 gtk_text_button_press (GtkWidget *widget,
1604 GdkEventButton *event)
1607 GtkOldEditable *old_editable;
1609 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1610 g_return_val_if_fail (event != NULL, FALSE);
1612 text = GTK_TEXT (widget);
1613 old_editable = GTK_OLD_EDITABLE (widget);
1615 if (text->button && (event->button != text->button))
1618 text->button = event->button;
1620 if (!GTK_WIDGET_HAS_FOCUS (widget))
1621 gtk_widget_grab_focus (widget);
1623 if (event->button == 1)
1625 switch (event->type)
1627 case GDK_BUTTON_PRESS:
1628 gtk_grab_add (widget);
1630 undraw_cursor (text, FALSE);
1631 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1632 draw_cursor (text, FALSE);
1634 /* Set it now, so we display things right. We'll unset it
1635 * later if things don't work out */
1636 old_editable->has_selection = TRUE;
1637 gtk_text_set_selection (GTK_OLD_EDITABLE (text),
1638 text->cursor_mark.index,
1639 text->cursor_mark.index);
1643 case GDK_2BUTTON_PRESS:
1644 gtk_text_select_word (text, event->time);
1647 case GDK_3BUTTON_PRESS:
1648 gtk_text_select_line (text, event->time);
1655 else if (event->type == GDK_BUTTON_PRESS)
1657 if ((event->button == 2) && old_editable->editable)
1659 if (old_editable->selection_start_pos == old_editable->selection_end_pos ||
1660 old_editable->has_selection)
1662 undraw_cursor (text, FALSE);
1663 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1664 draw_cursor (text, FALSE);
1668 gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
1669 gdk_atom_intern_static_string ("UTF8_STRING"),
1674 GdkDisplay *display = gtk_widget_get_display (widget);
1676 gtk_grab_add (widget);
1678 undraw_cursor (text, FALSE);
1679 find_mouse_cursor (text, event->x, event->y);
1680 draw_cursor (text, FALSE);
1682 gtk_text_set_selection (GTK_OLD_EDITABLE (text),
1683 text->cursor_mark.index,
1684 text->cursor_mark.index);
1686 old_editable->has_selection = FALSE;
1687 if (gdk_selection_owner_get_for_display (display,
1688 GDK_SELECTION_PRIMARY) == widget->window)
1689 gtk_selection_owner_set_for_display (display,
1691 GDK_SELECTION_PRIMARY,
1700 gtk_text_button_release (GtkWidget *widget,
1701 GdkEventButton *event)
1704 GtkOldEditable *old_editable;
1705 GdkDisplay *display;
1707 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1708 g_return_val_if_fail (event != NULL, FALSE);
1710 text = GTK_TEXT (widget);
1712 gtk_grab_remove (widget);
1714 if (text->button != event->button)
1721 g_source_remove (text->timer);
1725 if (event->button == 1)
1727 text = GTK_TEXT (widget);
1728 old_editable = GTK_OLD_EDITABLE (widget);
1729 display = gtk_widget_get_display (widget);
1731 gtk_grab_remove (widget);
1733 old_editable->has_selection = FALSE;
1734 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
1736 if (gtk_selection_owner_set_for_display (display,
1738 GDK_SELECTION_PRIMARY,
1740 old_editable->has_selection = TRUE;
1742 gtk_text_update_text (old_editable, old_editable->selection_start_pos,
1743 old_editable->selection_end_pos);
1747 if (gdk_selection_owner_get_for_display (display,
1748 GDK_SELECTION_PRIMARY) == widget->window)
1749 gtk_selection_owner_set_for_display (display,
1751 GDK_SELECTION_PRIMARY,
1755 else if (event->button == 3)
1757 gtk_grab_remove (widget);
1760 undraw_cursor (text, FALSE);
1761 find_cursor (text, TRUE);
1762 draw_cursor (text, FALSE);
1768 gtk_text_motion_notify (GtkWidget *widget,
1769 GdkEventMotion *event)
1774 GdkModifierType mask;
1776 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1777 g_return_val_if_fail (event != NULL, FALSE);
1779 text = GTK_TEXT (widget);
1783 mask = event->state;
1784 if (event->is_hint || (text->text_area != event->window))
1786 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1789 if ((text->button == 0) ||
1790 !(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)))
1793 gdk_window_get_size (text->text_area, NULL, &height);
1795 if ((y < 0) || (y > height))
1797 if (text->timer == 0)
1799 text->timer = gdk_threads_add_timeout (SCROLL_TIME,
1800 gtk_text_scroll_timeout,
1804 scroll_int (text, y/2);
1806 scroll_int (text, (y - height)/2);
1812 undraw_cursor (GTK_TEXT (widget), FALSE);
1813 find_mouse_cursor (GTK_TEXT (widget), x, y);
1814 draw_cursor (GTK_TEXT (widget), FALSE);
1816 gtk_text_set_selection (GTK_OLD_EDITABLE (text),
1817 GTK_OLD_EDITABLE (text)->selection_start_pos,
1818 text->cursor_mark.index);
1824 gtk_text_insert_text (GtkEditable *editable,
1825 const gchar *new_text,
1826 gint new_text_length,
1829 GtkText *text = GTK_TEXT (editable);
1831 GdkColor *fore, *back;
1833 TextProperty *property;
1835 gtk_text_set_point (text, *position);
1837 property = MARK_CURRENT_PROPERTY (&text->point);
1838 font = property->flags & PROPERTY_FONT ? property->font->gdk_font : NULL;
1839 fore = property->flags & PROPERTY_FOREGROUND ? &property->fore_color : NULL;
1840 back = property->flags & PROPERTY_BACKGROUND ? &property->back_color : NULL;
1842 gtk_text_insert (text, font, fore, back, new_text, new_text_length);
1844 *position = text->point.index;
1848 gtk_text_delete_text (GtkEditable *editable,
1854 g_return_if_fail (start_pos >= 0);
1856 text = GTK_TEXT (editable);
1858 gtk_text_set_point (text, start_pos);
1860 end_pos = TEXT_LENGTH (text);
1862 if (end_pos > start_pos)
1863 gtk_text_forward_delete (text, end_pos - start_pos);
1867 gtk_text_key_press (GtkWidget *widget,
1871 GtkOldEditable *old_editable;
1876 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1877 g_return_val_if_fail (event != NULL, FALSE);
1879 text = GTK_TEXT (widget);
1880 old_editable = GTK_OLD_EDITABLE (widget);
1882 key = event->keyval;
1885 if ((GTK_OLD_EDITABLE(text)->editable == FALSE))
1887 switch (event->keyval)
1891 if (event->state & GDK_CONTROL_MASK)
1892 scroll_int (text, -text->vadj->value);
1898 if (event->state & GDK_CONTROL_MASK)
1899 scroll_int (text, +text->vadj->upper);
1903 case GDK_KP_Page_Up:
1904 case GDK_Page_Up: scroll_int (text, -text->vadj->page_increment); break;
1905 case GDK_KP_Page_Down:
1906 case GDK_Page_Down: scroll_int (text, +text->vadj->page_increment); break;
1908 case GDK_Up: scroll_int (text, -KEY_SCROLL_PIXELS); break;
1910 case GDK_Down: scroll_int (text, +KEY_SCROLL_PIXELS); break;
1913 if (event->state & GDK_CONTROL_MASK)
1914 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
1925 gint extend_selection;
1927 guint initial_pos = old_editable->current_pos;
1929 text->point = find_mark (text, text->cursor_mark.index);
1931 extend_selection = event->state & GDK_SHIFT_MASK;
1932 extend_start = FALSE;
1934 if (extend_selection)
1936 old_editable->has_selection = TRUE;
1938 if (old_editable->selection_start_pos == old_editable->selection_end_pos)
1940 old_editable->selection_start_pos = text->point.index;
1941 old_editable->selection_end_pos = text->point.index;
1944 extend_start = (text->point.index == old_editable->selection_start_pos);
1947 switch (event->keyval)
1951 if (event->state & GDK_CONTROL_MASK)
1952 move_cursor_buffer_ver (text, -1);
1954 gtk_text_move_beginning_of_line (text);
1958 if (event->state & GDK_CONTROL_MASK)
1959 move_cursor_buffer_ver (text, +1);
1961 gtk_text_move_end_of_line (text);
1963 case GDK_KP_Page_Up:
1964 case GDK_Page_Up: move_cursor_page_ver (text, -1); break;
1965 case GDK_KP_Page_Down:
1966 case GDK_Page_Down: move_cursor_page_ver (text, +1); break;
1967 /* CUA has Ctrl-Up/Ctrl-Down as paragraph up down */
1969 case GDK_Up: move_cursor_ver (text, -1); break;
1971 case GDK_Down: move_cursor_ver (text, +1); break;
1974 if (event->state & GDK_CONTROL_MASK)
1975 gtk_text_move_backward_word (text);
1977 move_cursor_hor (text, -1);
1981 if (event->state & GDK_CONTROL_MASK)
1982 gtk_text_move_forward_word (text);
1984 move_cursor_hor (text, +1);
1988 if (event->state & GDK_CONTROL_MASK)
1989 gtk_text_delete_backward_word (text);
1991 gtk_text_delete_backward_character (text);
1994 gtk_text_delete_line (text);
1998 if (event->state & GDK_SHIFT_MASK)
2000 extend_selection = FALSE;
2001 gtk_editable_paste_clipboard (GTK_EDITABLE (old_editable));
2003 else if (event->state & GDK_CONTROL_MASK)
2005 gtk_editable_copy_clipboard (GTK_EDITABLE (old_editable));
2009 /* gtk_toggle_insert(text) -- IMPLEMENT */
2014 if (event->state & GDK_CONTROL_MASK)
2015 gtk_text_delete_forward_word (text);
2016 else if (event->state & GDK_SHIFT_MASK)
2018 extend_selection = FALSE;
2019 gtk_editable_cut_clipboard (GTK_EDITABLE (old_editable));
2022 gtk_text_delete_forward_character (text);
2025 case GDK_ISO_Left_Tab:
2027 position = text->point.index;
2028 gtk_editable_insert_text (GTK_EDITABLE (old_editable), "\t", 1, &position);
2032 if (event->state & GDK_CONTROL_MASK)
2033 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
2036 position = text->point.index;
2037 gtk_editable_insert_text (GTK_EDITABLE (old_editable), "\n", 1, &position);
2041 /* Don't insert literally */
2048 if (event->state & GDK_CONTROL_MASK)
2051 if ((key >= 'A') && (key <= 'Z'))
2057 gtk_text_move_beginning_of_line (text);
2060 gtk_text_move_backward_character (text);
2063 gtk_editable_copy_clipboard (GTK_EDITABLE (text));
2066 gtk_text_delete_forward_character (text);
2069 gtk_text_move_end_of_line (text);
2072 gtk_text_move_forward_character (text);
2075 gtk_text_delete_backward_character (text);
2078 gtk_text_delete_to_line_end (text);
2081 gtk_text_move_next_line (text);
2084 gtk_text_move_previous_line (text);
2087 gtk_text_delete_line (text);
2090 gtk_editable_paste_clipboard (GTK_EDITABLE (text));
2093 gtk_text_delete_backward_word (text);
2096 gtk_editable_cut_clipboard (GTK_EDITABLE (text));
2104 else if (event->state & GDK_MOD1_MASK)
2107 if ((key >= 'A') && (key <= 'Z'))
2113 gtk_text_move_backward_word (text);
2116 gtk_text_delete_forward_word (text);
2119 gtk_text_move_forward_word (text);
2127 else if (event->length > 0)
2129 extend_selection = FALSE;
2131 gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
2132 position = text->point.index;
2133 gtk_editable_insert_text (GTK_EDITABLE (old_editable), event->string, event->length, &position);
2139 if (return_val && (old_editable->current_pos != initial_pos))
2141 if (extend_selection)
2143 if (old_editable->current_pos < old_editable->selection_start_pos)
2144 gtk_text_set_selection (old_editable, old_editable->current_pos,
2145 old_editable->selection_end_pos);
2146 else if (old_editable->current_pos > old_editable->selection_end_pos)
2147 gtk_text_set_selection (old_editable, old_editable->selection_start_pos,
2148 old_editable->current_pos);
2152 gtk_text_set_selection (old_editable, old_editable->current_pos,
2153 old_editable->selection_end_pos);
2155 gtk_text_set_selection (old_editable, old_editable->selection_start_pos,
2156 old_editable->current_pos);
2160 gtk_text_set_selection (old_editable, 0, 0);
2162 gtk_old_editable_claim_selection (old_editable,
2163 old_editable->selection_start_pos != old_editable->selection_end_pos,
2172 gtk_text_adjustment (GtkAdjustment *adjustment,
2175 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2176 g_return_if_fail (GTK_IS_TEXT (text));
2178 /* Just ignore it if we haven't been size-allocated and realized yet */
2179 if (text->line_start_cache == NULL)
2182 if (adjustment == text->hadj)
2184 g_warning ("horizontal scrolling not implemented");
2188 gint diff = ((gint)adjustment->value) - text->last_ver_value;
2192 undraw_cursor (text, FALSE);
2195 scroll_down (text, diff);
2196 else /* if (diff < 0) */
2197 scroll_up (text, diff);
2199 draw_cursor (text, FALSE);
2201 text->last_ver_value = adjustment->value;
2207 gtk_text_adjustment_destroyed (GtkAdjustment *adjustment,
2210 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2211 g_return_if_fail (GTK_IS_TEXT (text));
2213 if (adjustment == text->hadj)
2214 gtk_text_set_adjustments (text, NULL, text->vadj);
2215 if (adjustment == text->vadj)
2216 gtk_text_set_adjustments (text, text->hadj, NULL);
2220 static GtkPropertyMark
2221 find_this_line_start_mark (GtkText* text, guint point_position, const GtkPropertyMark* near)
2223 GtkPropertyMark mark;
2225 mark = find_mark_near (text, point_position, near);
2227 while (mark.index > 0 &&
2228 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
2229 decrement_mark (&mark);
2235 init_tab_cont (GtkText* text, PrevTabCont* tab_cont)
2237 tab_cont->pixel_offset = 0;
2238 tab_cont->tab_start.tab_stops = text->tab_stops;
2239 tab_cont->tab_start.to_next_tab = (gulong) text->tab_stops->data;
2241 if (!tab_cont->tab_start.to_next_tab)
2242 tab_cont->tab_start.to_next_tab = text->default_tab_width;
2246 line_params_iterate (GtkText* text,
2247 const GtkPropertyMark* mark0,
2248 const PrevTabCont* tab_mark0,
2251 LineIteratorFunction iter)
2252 /* mark0 MUST be a real line start. if ALLOC, allocate line params
2253 * from a mem chunk. DATA is passed to ITER_CALL, which is called
2254 * for each line following MARK, iteration continues unless ITER_CALL
2257 GtkPropertyMark mark = *mark0;
2258 PrevTabCont tab_conts[2];
2259 LineParams *lp, lpbuf;
2260 gint tab_cont_index = 0;
2263 tab_conts[0] = *tab_mark0;
2265 init_tab_cont (text, tab_conts);
2270 lp = g_slice_new (LineParams);
2274 *lp = find_line_params (text, &mark, tab_conts + tab_cont_index,
2275 tab_conts + (tab_cont_index + 1) % 2);
2277 if ((*iter) (text, lp, data))
2280 if (LAST_INDEX (text, lp->end))
2284 advance_mark (&mark);
2285 tab_cont_index = (tab_cont_index + 1) % 2;
2290 fetch_lines_iterator (GtkText* text, LineParams* lp, void* data)
2292 FetchLinesData *fldata = (FetchLinesData*) data;
2294 fldata->new_lines = g_list_prepend (fldata->new_lines, lp);
2296 switch (fldata->fl_type)
2298 case FetchLinesCount:
2299 if (!text->line_wrap || !lp->wraps)
2302 if (fldata->data >= fldata->data_max)
2306 case FetchLinesPixels:
2308 fldata->data += LINE_HEIGHT(*lp);
2310 if (fldata->data >= fldata->data_max)
2320 fetch_lines (GtkText* text,
2321 const GtkPropertyMark* mark0,
2322 const PrevTabCont* tab_cont0,
2326 FetchLinesData fl_data;
2328 fl_data.new_lines = NULL;
2330 fl_data.data_max = data;
2331 fl_data.fl_type = fl_type;
2333 line_params_iterate (text, mark0, tab_cont0, TRUE, &fl_data, fetch_lines_iterator);
2335 return g_list_reverse (fl_data.new_lines);
2339 fetch_lines_backward (GtkText* text)
2341 GList *new_line_start;
2342 GtkPropertyMark mark;
2344 if (CACHE_DATA(text->line_start_cache).start.index == 0)
2347 mark = find_this_line_start_mark (text,
2348 CACHE_DATA(text->line_start_cache).start.index - 1,
2349 &CACHE_DATA(text->line_start_cache).start);
2351 new_line_start = fetch_lines (text, &mark, NULL, FetchLinesCount, 1);
2353 while (new_line_start->next)
2354 new_line_start = new_line_start->next;
2356 new_line_start->next = text->line_start_cache;
2357 text->line_start_cache->prev = new_line_start;
2361 fetch_lines_forward (GtkText* text, gint line_count)
2363 GtkPropertyMark mark;
2364 GList* line = text->line_start_cache;
2369 mark = CACHE_DATA(line).end;
2371 if (LAST_INDEX (text, mark))
2374 advance_mark(&mark);
2376 line->next = fetch_lines (text, &mark, &CACHE_DATA(line).tab_cont_next, FetchLinesCount, line_count);
2379 line->next->prev = line;
2382 /* Compute the number of lines, and vertical pixels for n characters
2383 * starting from the point
2386 compute_lines_pixels (GtkText* text, guint char_count,
2387 guint *lines, guint *pixels)
2389 GList *line = text->current_line;
2390 gint chars_left = char_count;
2395 /* If chars_left == 0, that means we're joining two lines in a
2396 * deletion, so add in the values for the next line as well
2398 for (; line && chars_left >= 0; line = line->next)
2400 *pixels += LINE_HEIGHT(CACHE_DATA(line));
2402 if (line == text->current_line)
2403 chars_left -= CACHE_DATA(line).end.index - text->point.index + 1;
2405 chars_left -= CACHE_DATA(line).end.index - CACHE_DATA(line).start.index + 1;
2407 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2411 chars_left = 0; /* force another loop */
2414 fetch_lines_forward (text, 1);
2419 total_line_height (GtkText* text, GList* line, gint line_count)
2423 for (; line && line_count > 0; line = line->next)
2425 height += LINE_HEIGHT(CACHE_DATA(line));
2427 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2431 fetch_lines_forward (text, line_count);
2438 swap_lines (GtkText* text, GList* old, GList* new, guint old_line_count)
2440 if (old == text->line_start_cache)
2444 for (; old_line_count > 0; old_line_count -= 1)
2446 while (text->line_start_cache &&
2448 CACHE_DATA(text->line_start_cache).wraps)
2449 remove_cache_line(text, text->line_start_cache);
2451 remove_cache_line(text, text->line_start_cache);
2454 last = g_list_last (new);
2456 last->next = text->line_start_cache;
2458 if (text->line_start_cache)
2459 text->line_start_cache->prev = last;
2461 text->line_start_cache = new;
2467 g_assert (old->prev);
2471 for (; old_line_count > 0; old_line_count -= 1)
2473 while (old && text->line_wrap && CACHE_DATA(old).wraps)
2474 old = remove_cache_line (text, old);
2476 old = remove_cache_line (text, old);
2482 last = g_list_last (new);
2492 correct_cache_delete (GtkText* text, gint nchars, gint lines)
2494 GList* cache = text->current_line;
2497 for (i = 0; cache && i < lines; i += 1, cache = cache->next)
2500 for (; cache; cache = cache->next)
2502 GtkPropertyMark *start = &CACHE_DATA(cache).start;
2503 GtkPropertyMark *end = &CACHE_DATA(cache).end;
2505 start->index -= nchars;
2506 end->index -= nchars;
2508 if (LAST_INDEX (text, text->point) &&
2509 start->index == text->point.index)
2510 *start = text->point;
2511 else if (start->property == text->point.property)
2512 start->offset = start->index - (text->point.index - text->point.offset);
2514 if (LAST_INDEX (text, text->point) &&
2515 end->index == text->point.index)
2517 if (end->property == text->point.property)
2518 end->offset = end->index - (text->point.index - text->point.offset);
2520 /*TEXT_ASSERT_MARK(text, start, "start");*/
2521 /*TEXT_ASSERT_MARK(text, end, "end");*/
2526 delete_expose (GtkText* text, guint nchars, guint old_lines, guint old_pixels)
2528 GtkWidget *widget = GTK_WIDGET (text);
2531 guint new_pixels = 0;
2533 GList* new_line = NULL;
2536 text->cursor_virtual_x = 0;
2538 correct_cache_delete (text, nchars, old_lines);
2540 pixel_height = pixel_height_of(text, text->current_line) -
2541 LINE_HEIGHT(CACHE_DATA(text->current_line));
2543 if (CACHE_DATA(text->current_line).start.index == text->point.index)
2544 CACHE_DATA(text->current_line).start = text->point;
2546 new_line = fetch_lines (text,
2547 &CACHE_DATA(text->current_line).start,
2548 &CACHE_DATA(text->current_line).tab_cont,
2552 swap_lines (text, text->current_line, new_line, old_lines);
2554 text->current_line = new_line;
2556 new_pixels = total_line_height (text, new_line, 1);
2558 gdk_window_get_size (text->text_area, &width, &height);
2560 if (old_pixels != new_pixels)
2562 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2564 gdk_draw_pixmap (text->text_area,
2568 pixel_height + old_pixels,
2570 pixel_height + new_pixels,
2574 text->vadj->upper += new_pixels;
2575 text->vadj->upper -= old_pixels;
2576 adjust_adj (text, text->vadj);
2580 rect.y = pixel_height;
2582 rect.height = new_pixels;
2584 expose_text (text, &rect, FALSE);
2585 gtk_text_draw_focus ( (GtkWidget *) text);
2587 text->cursor_mark = text->point;
2589 find_cursor (text, TRUE);
2591 if (old_pixels != new_pixels)
2593 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2596 rect.y = pixel_height + new_pixels;
2598 rect.height = height - rect.y;
2600 expose_text (text, &rect, FALSE);
2603 process_exposes (text);
2610 /* note, the point has already been moved forward */
2612 correct_cache_insert (GtkText* text, gint nchars)
2615 GtkPropertyMark *start;
2616 GtkPropertyMark *end;
2617 gboolean was_split = FALSE;
2619 /* We need to distinguish whether the property was split in the
2620 * insert or not, so we check if the point (which points after
2621 * the insertion here), points to the same character as the
2622 * point before. Ugh.
2626 GtkPropertyMark tmp_mark = text->point;
2627 move_mark_n (&tmp_mark, -1);
2629 if (tmp_mark.property != text->point.property)
2633 /* If we inserted a property exactly at the beginning of the
2634 * line, we have to correct here, or fetch_lines will
2637 start = &CACHE_DATA(text->current_line).start;
2639 /* Check if if we split exactly at the beginning of the line:
2640 * (was_split won't be set if we are inserting at the end of the text,
2641 * so we don't check)
2643 if (start->offset == MARK_CURRENT_PROPERTY (start)->length)
2644 SET_PROPERTY_MARK (start, start->property->next, 0);
2645 /* Check if we inserted a property at the beginning of the text: */
2646 else if (was_split &&
2647 (start->property == text->point.property) &&
2648 (start->index == text->point.index - nchars))
2649 SET_PROPERTY_MARK (start, start->property->prev, 0);
2651 /* Now correct the offsets, and check for start or end marks that
2652 * are after the point, yet point to a property before the point's
2653 * property. This indicates that they are meant to point to the
2654 * second half of a property we split in insert_text_property(), so
2655 * we fix them up that way.
2657 cache = text->current_line->next;
2659 for (; cache; cache = cache->next)
2661 start = &CACHE_DATA(cache).start;
2662 end = &CACHE_DATA(cache).end;
2664 if (LAST_INDEX (text, text->point) &&
2665 start->index == text->point.index)
2666 *start = text->point;
2667 else if (start->index >= text->point.index - nchars)
2669 if (!was_split && start->property == text->point.property)
2670 move_mark_n(start, nchars);
2673 if (start->property->next &&
2674 (start->property->next->next == text->point.property))
2676 g_assert (start->offset >= MARK_CURRENT_PROPERTY (start)->length);
2677 start->offset -= MARK_CURRENT_PROPERTY (start)->length;
2678 start->property = text->point.property;
2680 start->index += nchars;
2684 if (LAST_INDEX (text, text->point) &&
2685 end->index == text->point.index)
2687 if (end->index >= text->point.index - nchars)
2689 if (!was_split && end->property == text->point.property)
2690 move_mark_n(end, nchars);
2693 if (end->property->next &&
2694 (end->property->next->next == text->point.property))
2696 g_assert (end->offset >= MARK_CURRENT_PROPERTY (end)->length);
2697 end->offset -= MARK_CURRENT_PROPERTY (end)->length;
2698 end->property = text->point.property;
2700 end->index += nchars;
2704 /*TEXT_ASSERT_MARK(text, start, "start");*/
2705 /*TEXT_ASSERT_MARK(text, end, "end");*/
2711 insert_expose (GtkText* text, guint old_pixels, gint nchars,
2712 guint new_line_count)
2714 GtkWidget *widget = GTK_WIDGET (text);
2717 guint new_pixels = 0;
2719 GList* new_lines = NULL;
2722 text->cursor_virtual_x = 0;
2724 undraw_cursor (text, FALSE);
2726 correct_cache_insert (text, nchars);
2728 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2730 pixel_height = pixel_height_of(text, text->current_line) -
2731 LINE_HEIGHT(CACHE_DATA(text->current_line));
2733 new_lines = fetch_lines (text,
2734 &CACHE_DATA(text->current_line).start,
2735 &CACHE_DATA(text->current_line).tab_cont,
2739 swap_lines (text, text->current_line, new_lines, 1);
2741 text->current_line = new_lines;
2743 new_pixels = total_line_height (text, new_lines, new_line_count);
2745 gdk_window_get_size (text->text_area, &width, &height);
2747 if (old_pixels != new_pixels)
2749 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2751 gdk_draw_pixmap (text->text_area,
2755 pixel_height + old_pixels,
2757 pixel_height + new_pixels,
2759 height + (old_pixels - new_pixels) - pixel_height);
2762 text->vadj->upper += new_pixels;
2763 text->vadj->upper -= old_pixels;
2764 adjust_adj (text, text->vadj);
2768 rect.y = pixel_height;
2770 rect.height = new_pixels;
2772 expose_text (text, &rect, FALSE);
2773 gtk_text_draw_focus ( (GtkWidget *) text);
2775 text->cursor_mark = text->point;
2777 find_cursor (text, TRUE);
2779 draw_cursor (text, FALSE);
2781 if (old_pixels != new_pixels)
2783 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2786 rect.y = pixel_height + new_pixels;
2788 rect.height = height - rect.y;
2790 expose_text (text, &rect, FALSE);
2793 process_exposes (text);
2796 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2801 /* Text property functions */
2804 font_hash (gconstpointer font)
2806 return gdk_font_id ((const GdkFont*) font);
2809 static GHashTable *font_cache_table = NULL;
2812 get_text_font (GdkFont* gfont)
2817 if (!font_cache_table)
2818 font_cache_table = g_hash_table_new (font_hash, (GEqualFunc) gdk_font_equal);
2820 tf = g_hash_table_lookup (font_cache_table, gfont);
2828 tf = g_new (GtkTextFont, 1);
2831 tf->gdk_font = gfont;
2832 gdk_font_ref (gfont);
2834 for(i = 0; i < 256; i += 1)
2835 tf->char_widths[i] = gdk_char_width (gfont, (char)i);
2837 g_hash_table_insert (font_cache_table, gfont, tf);
2843 text_font_unref (GtkTextFont *text_font)
2845 text_font->ref_count--;
2846 if (text_font->ref_count == 0)
2848 g_hash_table_remove (font_cache_table, text_font->gdk_font);
2849 gdk_font_unref (text_font->gdk_font);
2855 text_properties_equal (TextProperty* prop, GdkFont* font, const GdkColor *fore, const GdkColor *back)
2857 if (prop->flags & PROPERTY_FONT)
2860 GtkTextFont *text_font;
2865 text_font = get_text_font (font);
2867 retval = (prop->font == text_font);
2868 text_font_unref (text_font);
2877 if (prop->flags & PROPERTY_FOREGROUND)
2879 if (!fore || !gdk_color_equal (&prop->fore_color, fore))
2886 if (prop->flags & PROPERTY_BACKGROUND)
2888 if (!back || !gdk_color_equal (&prop->back_color, back))
2899 realize_property (GtkText *text, TextProperty *prop)
2901 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2903 if (prop->flags & PROPERTY_FOREGROUND)
2904 gdk_colormap_alloc_color (colormap, &prop->fore_color, FALSE, FALSE);
2906 if (prop->flags & PROPERTY_BACKGROUND)
2907 gdk_colormap_alloc_color (colormap, &prop->back_color, FALSE, FALSE);
2911 realize_properties (GtkText *text)
2913 GList *tmp_list = text->text_properties;
2917 realize_property (text, tmp_list->data);
2919 tmp_list = tmp_list->next;
2924 unrealize_property (GtkText *text, TextProperty *prop)
2926 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2928 if (prop->flags & PROPERTY_FOREGROUND)
2929 gdk_colormap_free_colors (colormap, &prop->fore_color, 1);
2931 if (prop->flags & PROPERTY_BACKGROUND)
2932 gdk_colormap_free_colors (colormap, &prop->back_color, 1);
2936 unrealize_properties (GtkText *text)
2938 GList *tmp_list = text->text_properties;
2942 unrealize_property (text, tmp_list->data);
2944 tmp_list = tmp_list->next;
2948 static TextProperty*
2949 new_text_property (GtkText *text, GdkFont *font, const GdkColor* fore,
2950 const GdkColor* back, guint length)
2954 prop = g_slice_new (TextProperty);
2959 prop->flags |= PROPERTY_FONT;
2960 prop->font = get_text_font (font);
2967 prop->flags |= PROPERTY_FOREGROUND;
2968 prop->fore_color = *fore;
2973 prop->flags |= PROPERTY_BACKGROUND;
2974 prop->back_color = *back;
2977 prop->length = length;
2979 if (GTK_WIDGET_REALIZED (text))
2980 realize_property (text, prop);
2986 destroy_text_property (TextProperty *prop)
2989 text_font_unref (prop->font);
2991 g_slice_free (TextProperty, prop);
2994 /* Flop the memory between the point and the gap around like a
2997 move_gap (GtkText* text, guint index)
2999 if (text->gap_position < index)
3001 gint diff = index - text->gap_position;
3003 if (text->use_wchar)
3004 g_memmove (text->text.wc + text->gap_position,
3005 text->text.wc + text->gap_position + text->gap_size,
3006 diff*sizeof (GdkWChar));
3008 g_memmove (text->text.ch + text->gap_position,
3009 text->text.ch + text->gap_position + text->gap_size,
3012 text->gap_position = index;
3014 else if (text->gap_position > index)
3016 gint diff = text->gap_position - index;
3018 if (text->use_wchar)
3019 g_memmove (text->text.wc + index + text->gap_size,
3020 text->text.wc + index,
3021 diff*sizeof (GdkWChar));
3023 g_memmove (text->text.ch + index + text->gap_size,
3024 text->text.ch + index,
3027 text->gap_position = index;
3031 /* Increase the gap size. */
3033 make_forward_space (GtkText* text, guint len)
3035 if (text->gap_size < len)
3037 guint sum = MAX(2*len, MIN_GAP_SIZE) + text->text_end;
3039 if (sum >= text->text_len)
3043 while (i <= sum) i <<= 1;
3045 if (text->use_wchar)
3046 text->text.wc = (GdkWChar *)g_realloc(text->text.wc,
3047 i*sizeof(GdkWChar));
3049 text->text.ch = (guchar *)g_realloc(text->text.ch, i);
3053 if (text->use_wchar)
3054 g_memmove (text->text.wc + text->gap_position + text->gap_size + 2*len,
3055 text->text.wc + text->gap_position + text->gap_size,
3056 (text->text_end - (text->gap_position + text->gap_size))
3059 g_memmove (text->text.ch + text->gap_position + text->gap_size + 2*len,
3060 text->text.ch + text->gap_position + text->gap_size,
3061 text->text_end - (text->gap_position + text->gap_size));
3063 text->text_end += len*2;
3064 text->gap_size += len*2;
3068 /* Inserts into the text property list a list element that guarantees
3069 * that for len characters following the point, text has the correct
3070 * property. does not move point. adjusts text_properties_point and
3071 * text_properties_point_offset relative to the current value of
3074 insert_text_property (GtkText* text, GdkFont* font,
3075 const GdkColor *fore, const GdkColor* back, guint len)
3077 GtkPropertyMark *mark = &text->point;
3078 TextProperty* forward_prop = MARK_CURRENT_PROPERTY(mark);
3079 TextProperty* backward_prop = MARK_PREV_PROPERTY(mark);
3081 if (MARK_OFFSET(mark) == 0)
3083 /* Point is on the boundary of two properties.
3084 * If it is the same as either, grow, else insert
3087 if (text_properties_equal(forward_prop, font, fore, back))
3089 /* Grow the property in front of us. */
3091 MARK_PROPERTY_LENGTH(mark) += len;
3093 else if (backward_prop &&
3094 text_properties_equal(backward_prop, font, fore, back))
3096 /* Grow property behind us, point property and offset
3099 SET_PROPERTY_MARK (&text->point,
3100 MARK_PREV_LIST_PTR (mark),
3101 backward_prop->length);
3103 backward_prop->length += len;
3105 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3106 (forward_prop->length == 1))
3108 /* Next property just has last position, take it over */
3110 if (GTK_WIDGET_REALIZED (text))
3111 unrealize_property (text, forward_prop);
3113 forward_prop->flags = 0;
3116 forward_prop->flags |= PROPERTY_FONT;
3117 forward_prop->font = get_text_font (font);
3120 forward_prop->font = NULL;
3124 forward_prop->flags |= PROPERTY_FOREGROUND;
3125 forward_prop->fore_color = *fore;
3129 forward_prop->flags |= PROPERTY_BACKGROUND;
3130 forward_prop->back_color = *back;
3132 forward_prop->length += len;
3134 if (GTK_WIDGET_REALIZED (text))
3135 realize_property (text, forward_prop);
3139 /* Splice a new property into the list. */
3141 GList* new_prop = g_list_alloc();
3143 new_prop->next = MARK_LIST_PTR(mark);
3144 new_prop->prev = MARK_PREV_LIST_PTR(mark);
3145 new_prop->next->prev = new_prop;
3148 new_prop->prev->next = new_prop;
3150 new_prop->data = new_text_property (text, font, fore, back, len);
3152 SET_PROPERTY_MARK (mark, new_prop, 0);
3157 /* The following will screw up the line_start cache,
3158 * we'll fix it up in correct_cache_insert
3161 /* In the middle of forward_prop, if properties are equal,
3162 * just add to its length, else split it into two and splice
3164 if (text_properties_equal (forward_prop, font, fore, back))
3166 forward_prop->length += len;
3168 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3169 (MARK_OFFSET(mark) + 1 == forward_prop->length))
3171 /* Inserting before only the last position in the text */
3174 forward_prop->length -= 1;
3176 new_prop = g_list_alloc();
3177 new_prop->data = new_text_property (text, font, fore, back, len+1);
3178 new_prop->prev = MARK_LIST_PTR(mark);
3179 new_prop->next = NULL;
3180 MARK_NEXT_LIST_PTR(mark) = new_prop;
3182 SET_PROPERTY_MARK (mark, new_prop, 0);
3186 GList* new_prop = g_list_alloc();
3187 GList* new_prop_forward = g_list_alloc();
3188 gint old_length = forward_prop->length;
3189 GList* next = MARK_NEXT_LIST_PTR(mark);
3191 /* Set the new lengths according to where they are split. Construct
3192 * two new properties. */
3193 forward_prop->length = MARK_OFFSET(mark);
3195 new_prop_forward->data =
3196 new_text_property(text,
3197 forward_prop->flags & PROPERTY_FONT ?
3198 forward_prop->font->gdk_font : NULL,
3199 forward_prop->flags & PROPERTY_FOREGROUND ?
3200 &forward_prop->fore_color : NULL,
3201 forward_prop->flags & PROPERTY_BACKGROUND ?
3202 &forward_prop->back_color : NULL,
3203 old_length - forward_prop->length);
3205 new_prop->data = new_text_property(text, font, fore, back, len);
3207 /* Now splice things in. */
3208 MARK_NEXT_LIST_PTR(mark) = new_prop;
3209 new_prop->prev = MARK_LIST_PTR(mark);
3211 new_prop->next = new_prop_forward;
3212 new_prop_forward->prev = new_prop;
3214 new_prop_forward->next = next;
3217 next->prev = new_prop_forward;
3219 SET_PROPERTY_MARK (mark, new_prop, 0);
3223 while (text->text_properties_end->next)
3224 text->text_properties_end = text->text_properties_end->next;
3226 while (text->text_properties->prev)
3227 text->text_properties = text->text_properties->prev;
3231 delete_text_property (GtkText* text, guint nchars)
3233 /* Delete nchars forward from point. */
3235 /* Deleting text properties is problematical, because we
3236 * might be storing around marks pointing to a property.
3238 * The marks in question and how we handle them are:
3240 * point: We know the new value, since it will be at the
3241 * end of the deleted text, and we move it there
3243 * cursor: We just remove the mark and set it equal to the
3244 * point after the operation.
3245 * line-start cache: We replace most affected lines.
3246 * The current line gets used to fetch the new
3247 * lines so, if necessary, (delete at the beginning
3248 * of a line) we fix it up by setting it equal to the
3256 for(; nchars; nchars -= 1)
3258 prop = MARK_CURRENT_PROPERTY(&text->point);
3262 if (prop->length == 0)
3264 tmp = MARK_LIST_PTR (&text->point);
3266 is_first = tmp == text->text_properties;
3268 MARK_LIST_PTR (&text->point) = g_list_remove_link (tmp, tmp);
3269 text->point.offset = 0;
3271 if (GTK_WIDGET_REALIZED (text))
3272 unrealize_property (text, prop);
3274 destroy_text_property (prop);
3275 g_list_free_1 (tmp);
3277 prop = MARK_CURRENT_PROPERTY (&text->point);
3280 text->text_properties = MARK_LIST_PTR (&text->point);
3282 g_assert (prop->length != 0);
3284 else if (prop->length == text->point.offset)
3286 MARK_LIST_PTR (&text->point) = MARK_NEXT_LIST_PTR (&text->point);
3287 text->point.offset = 0;
3291 /* Check to see if we have just the single final position remaining
3292 * along in a property; if so, combine it with the previous property
3294 if (LAST_INDEX (text, text->point) &&
3295 (MARK_OFFSET (&text->point) == 0) &&
3296 (MARK_PREV_LIST_PTR(&text->point) != NULL))
3298 tmp = MARK_LIST_PTR (&text->point);
3299 prop = MARK_CURRENT_PROPERTY(&text->point);
3301 MARK_LIST_PTR (&text->point) = MARK_PREV_LIST_PTR (&text->point);
3302 MARK_CURRENT_PROPERTY(&text->point)->length += 1;
3303 MARK_NEXT_LIST_PTR(&text->point) = NULL;
3305 text->point.offset = MARK_CURRENT_PROPERTY(&text->point)->length - 1;
3307 if (GTK_WIDGET_REALIZED (text))
3308 unrealize_property (text, prop);
3310 destroy_text_property (prop);
3311 g_list_free_1 (tmp);
3316 init_properties (GtkText *text)
3318 if (!text->text_properties)
3320 text->text_properties = g_list_alloc();
3321 text->text_properties->next = NULL;
3322 text->text_properties->prev = NULL;
3323 text->text_properties->data = new_text_property (text, NULL, NULL, NULL, 1);
3324 text->text_properties_end = text->text_properties;
3326 SET_PROPERTY_MARK (&text->point, text->text_properties, 0);
3328 text->point.index = 0;
3333 /**********************************************************************/
3334 /* Property Movement */
3335 /**********************************************************************/
3338 move_mark_n (GtkPropertyMark* mark, gint n)
3341 advance_mark_n(mark, n);
3343 decrement_mark_n(mark, -n);
3347 advance_mark (GtkPropertyMark* mark)
3349 TextProperty* prop = MARK_CURRENT_PROPERTY (mark);
3353 if (prop->length > mark->offset + 1)
3357 mark->property = MARK_NEXT_LIST_PTR (mark);
3363 advance_mark_n (GtkPropertyMark* mark, gint n)
3370 i = 0; /* otherwise it migth not be init. */
3371 prop = MARK_CURRENT_PROPERTY(mark);
3373 if ((prop->length - mark->offset - 1) < n) { /* if we need to change prop. */
3374 /* to make it easier */
3375 n += (mark->offset);
3376 mark->index -= mark->offset;
3378 /* first we take seven-mile-leaps to get to the right text
3380 while ((n-i) > prop->length - 1) {
3382 mark->index += prop->length;
3383 mark->property = MARK_NEXT_LIST_PTR (mark);
3384 prop = MARK_CURRENT_PROPERTY (mark);
3388 /* and then the rest */
3389 mark->index += n - i;
3390 mark->offset += n - i;
3394 decrement_mark (GtkPropertyMark* mark)
3398 if (mark->offset > 0)
3402 mark->property = MARK_PREV_LIST_PTR (mark);
3403 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3408 decrement_mark_n (GtkPropertyMark* mark, gint n)
3412 while (mark->offset < n) {
3413 /* jump to end of prev */
3414 n -= mark->offset + 1;
3415 mark->index -= mark->offset + 1;
3416 mark->property = MARK_PREV_LIST_PTR (mark);
3417 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3425 static GtkPropertyMark
3426 find_mark (GtkText* text, guint mark_position)
3428 return find_mark_near (text, mark_position, &text->point);
3432 * You can also start from the end, what a drag.
3434 static GtkPropertyMark
3435 find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near)
3440 GtkPropertyMark mark;
3443 diffa = mark_position + 1;
3445 diffa = mark_position - near->index;
3447 diffb = mark_position;
3459 mark.property = text->text_properties;
3463 move_mark_n (&mark, mark_position - mark.index);
3468 /* This routine must be called with scroll == FALSE, only when
3469 * point is at least partially on screen
3473 find_line_containing_point (GtkText* text, guint point,
3479 text->current_line = NULL;
3483 /* Scroll backwards until the point is on screen
3485 while (CACHE_DATA(text->line_start_cache).start.index > point)
3486 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache)));
3488 /* Now additionally try to make sure that the point is fully on screen
3492 while (text->first_cut_pixels != 0 &&
3493 text->line_start_cache->next &&
3494 CACHE_DATA(text->line_start_cache->next).start.index > point)
3495 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache->next)));
3498 gdk_window_get_size (text->text_area, NULL, &height);
3500 for (cache = text->line_start_cache; cache; cache = cache->next)
3504 if (CACHE_DATA(cache).end.index >= point ||
3505 LAST_INDEX(text, CACHE_DATA(cache).end))
3507 text->current_line = cache; /* LOOK HERE, this proc has an
3508 * important side effect. */
3512 TEXT_SHOW_LINE (text, cache, "cache");
3514 if (cache->next == NULL)
3515 fetch_lines_forward (text, 1);
3519 lph = pixel_height_of (text, cache->next);
3521 /* Scroll the bottom of the line is on screen, or until
3522 * the line is the first onscreen line.
3524 while (cache->next != text->line_start_cache && lph > height)
3526 TEXT_SHOW_LINE (text, cache, "cache");
3527 TEXT_SHOW_LINE (text, cache->next, "cache->next");
3528 scroll_int (text, LINE_HEIGHT(CACHE_DATA(cache->next)));
3529 lph = pixel_height_of (text, cache->next);
3534 g_assert_not_reached (); /* Must set text->current_line here */
3538 pixel_height_of (GtkText* text, GList* cache_line)
3540 gint pixels = - text->first_cut_pixels;
3541 GList *cache = text->line_start_cache;
3544 pixels += LINE_HEIGHT (CACHE_DATA(cache));
3546 if (cache->data == cache_line->data)
3549 cache = cache->next;
3555 /**********************************************************************/
3556 /* Search and Placement */
3557 /**********************************************************************/
3560 find_char_width (GtkText* text, const GtkPropertyMark *mark, const TabStopMark *tab_mark)
3563 gint16* char_widths;
3565 if (LAST_INDEX (text, *mark))
3568 ch = GTK_TEXT_INDEX (text, mark->index);
3569 char_widths = MARK_CURRENT_TEXT_FONT (text, mark)->char_widths;
3573 return tab_mark->to_next_tab * char_widths[' '];
3577 return char_widths[ch];
3581 return gdk_char_width_wc(MARK_CURRENT_TEXT_FONT(text, mark)->gdk_font, ch);
3586 advance_tab_mark (GtkText* text, TabStopMark* tab_mark, GdkWChar ch)
3588 if (tab_mark->to_next_tab == 1 || ch == '\t')
3590 if (tab_mark->tab_stops->next)
3592 tab_mark->tab_stops = tab_mark->tab_stops->next;
3593 tab_mark->to_next_tab = (gulong) tab_mark->tab_stops->data;
3597 tab_mark->to_next_tab = text->default_tab_width;
3602 tab_mark->to_next_tab -= 1;
3607 advance_tab_mark_n (GtkText* text, TabStopMark* tab_mark, gint n)
3611 advance_tab_mark (text, tab_mark, 0);
3615 find_cursor_at_line (GtkText* text, const LineParams* start_line, gint pixel_height)
3619 GtkPropertyMark mark = start_line->start;
3620 TabStopMark tab_mark = start_line->tab_cont.tab_start;
3621 gint pixel_width = LINE_START_PIXEL (*start_line);
3623 while (mark.index < text->cursor_mark.index)
3625 pixel_width += find_char_width (text, &mark, &tab_mark);
3627 advance_tab_mark (text, &tab_mark, GTK_TEXT_INDEX(text, mark.index));
3628 advance_mark (&mark);
3631 text->cursor_pos_x = pixel_width;
3632 text->cursor_pos_y = pixel_height;
3633 text->cursor_char_offset = start_line->font_descent;
3634 text->cursor_mark = mark;
3636 ch = LAST_INDEX (text, mark) ?
3637 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3639 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
3640 text->cursor_char = 0;
3642 text->cursor_char = ch;
3646 find_cursor (GtkText* text, gboolean scroll)
3648 if (GTK_WIDGET_REALIZED (text))
3650 find_line_containing_point (text, text->cursor_mark.index, scroll);
3652 if (text->current_line)
3653 find_cursor_at_line (text,
3654 &CACHE_DATA(text->current_line),
3655 pixel_height_of(text, text->current_line));
3658 GTK_OLD_EDITABLE (text)->current_pos = text->cursor_mark.index;
3662 find_mouse_cursor_at_line (GtkText *text, const LineParams* lp,
3663 guint line_pixel_height,
3666 GtkPropertyMark mark = lp->start;
3667 TabStopMark tab_mark = lp->tab_cont.tab_start;
3669 gint char_width = find_char_width(text, &mark, &tab_mark);
3670 gint pixel_width = LINE_START_PIXEL (*lp) + (char_width+1)/2;
3672 text->cursor_pos_y = line_pixel_height;
3676 GdkWChar ch = LAST_INDEX (text, mark) ?
3677 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3679 if (button_x < pixel_width || mark.index == lp->end.index)
3681 text->cursor_pos_x = pixel_width - (char_width+1)/2;
3682 text->cursor_mark = mark;
3683 text->cursor_char_offset = lp->font_descent;
3685 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
3686 text->cursor_char = 0;
3688 text->cursor_char = ch;
3693 advance_tab_mark (text, &tab_mark, ch);
3694 advance_mark (&mark);
3696 pixel_width += char_width/2;
3698 char_width = find_char_width (text, &mark, &tab_mark);
3700 pixel_width += (char_width+1)/2;
3705 find_mouse_cursor (GtkText* text, gint x, gint y)
3708 GList* cache = text->line_start_cache;
3712 pixel_height = - text->first_cut_pixels;
3714 for (; cache; cache = cache->next)
3716 pixel_height += LINE_HEIGHT(CACHE_DATA(cache));
3718 if (y < pixel_height || !cache->next)
3720 find_mouse_cursor_at_line (text, &CACHE_DATA(cache), pixel_height, x);
3722 find_cursor (text, FALSE);
3729 /**********************************************************************/
3731 /**********************************************************************/
3734 free_cache (GtkText* text)
3736 GList* cache = text->line_start_cache;
3741 cache = cache->prev;
3743 text->line_start_cache = cache;
3746 for (; cache; cache = cache->next)
3747 g_slice_free (LineParams, cache->data);
3749 g_list_free (text->line_start_cache);
3751 text->line_start_cache = NULL;
3755 remove_cache_line (GtkText* text, GList* member)
3762 if (member == text->line_start_cache)
3763 text->line_start_cache = text->line_start_cache->next;
3766 member->prev->next = member->next;
3769 member->next->prev = member->prev;
3771 list = member->next;
3773 g_slice_free (LineParams, member->data);
3774 g_list_free_1 (member);
3779 /**********************************************************************/
3781 /**********************************************************************/
3784 move_cursor_buffer_ver (GtkText *text, int dir)
3786 undraw_cursor (text, FALSE);
3790 scroll_int (text, text->vadj->upper);
3791 text->cursor_mark = find_this_line_start_mark (text,
3793 &text->cursor_mark);
3797 scroll_int (text, - text->vadj->value);
3798 text->cursor_mark = find_this_line_start_mark (text,
3800 &text->cursor_mark);
3803 find_cursor (text, TRUE);
3804 draw_cursor (text, FALSE);
3808 move_cursor_page_ver (GtkText *text, int dir)
3810 scroll_int (text, dir * text->vadj->page_increment);
3814 move_cursor_ver (GtkText *text, int count)
3817 GtkPropertyMark mark;
3820 mark = find_this_line_start_mark (text, text->cursor_mark.index, &text->cursor_mark);
3821 offset = text->cursor_mark.index - mark.index;
3823 if (offset > text->cursor_virtual_x)
3824 text->cursor_virtual_x = offset;
3828 if (mark.index == 0)
3831 decrement_mark (&mark);
3832 mark = find_this_line_start_mark (text, mark.index, &mark);
3836 mark = text->cursor_mark;
3838 while (!LAST_INDEX(text, mark) && GTK_TEXT_INDEX(text, mark.index) != LINE_DELIM)
3839 advance_mark (&mark);
3841 if (LAST_INDEX(text, mark))
3844 advance_mark (&mark);
3847 for (i=0; i < text->cursor_virtual_x; i += 1, advance_mark(&mark))
3848 if (LAST_INDEX(text, mark) ||
3849 GTK_TEXT_INDEX(text, mark.index) == LINE_DELIM)
3852 undraw_cursor (text, FALSE);
3854 text->cursor_mark = mark;
3856 find_cursor (text, TRUE);
3858 draw_cursor (text, FALSE);
3862 move_cursor_hor (GtkText *text, int count)
3864 /* count should be +-1. */
3865 if ( (count > 0 && text->cursor_mark.index + count > TEXT_LENGTH(text)) ||
3866 (count < 0 && text->cursor_mark.index < (- count)) ||
3870 text->cursor_virtual_x = 0;
3872 undraw_cursor (text, FALSE);
3874 move_mark_n (&text->cursor_mark, count);
3876 find_cursor (text, TRUE);
3878 draw_cursor (text, FALSE);
3882 gtk_text_move_cursor (GtkOldEditable *old_editable,
3889 move_cursor_hor (GTK_TEXT (old_editable), 1);
3894 move_cursor_hor (GTK_TEXT (old_editable), -1);
3900 move_cursor_ver (GTK_TEXT (old_editable), 1);
3905 move_cursor_ver (GTK_TEXT (old_editable), -1);
3910 gtk_text_move_forward_character (GtkText *text)
3912 move_cursor_hor (text, 1);
3916 gtk_text_move_backward_character (GtkText *text)
3918 move_cursor_hor (text, -1);
3922 gtk_text_move_next_line (GtkText *text)
3924 move_cursor_ver (text, 1);
3928 gtk_text_move_previous_line (GtkText *text)
3930 move_cursor_ver (text, -1);
3934 gtk_text_move_word (GtkOldEditable *old_editable,
3940 gtk_text_move_forward_word (GTK_TEXT (old_editable));
3945 gtk_text_move_backward_word (GTK_TEXT (old_editable));
3950 gtk_text_move_forward_word (GtkText *text)
3952 text->cursor_virtual_x = 0;
3954 undraw_cursor (text, FALSE);
3956 if (text->use_wchar)
3958 while (!LAST_INDEX (text, text->cursor_mark) &&
3959 !gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3960 advance_mark (&text->cursor_mark);
3962 while (!LAST_INDEX (text, text->cursor_mark) &&
3963 gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3964 advance_mark (&text->cursor_mark);
3968 while (!LAST_INDEX (text, text->cursor_mark) &&
3969 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3970 advance_mark (&text->cursor_mark);
3972 while (!LAST_INDEX (text, text->cursor_mark) &&
3973 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3974 advance_mark (&text->cursor_mark);
3977 find_cursor (text, TRUE);
3978 draw_cursor (text, FALSE);
3982 gtk_text_move_backward_word (GtkText *text)
3984 text->cursor_virtual_x = 0;
3986 undraw_cursor (text, FALSE);
3988 if (text->use_wchar)
3990 while ((text->cursor_mark.index > 0) &&
3991 !gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
3992 decrement_mark (&text->cursor_mark);
3994 while ((text->cursor_mark.index > 0) &&
3995 gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
3996 decrement_mark (&text->cursor_mark);
4000 while ((text->cursor_mark.index > 0) &&
4001 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4002 decrement_mark (&text->cursor_mark);
4004 while ((text->cursor_mark.index > 0) &&
4005 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4006 decrement_mark (&text->cursor_mark);
4009 find_cursor (text, TRUE);
4010 draw_cursor (text, FALSE);
4014 gtk_text_move_page (GtkOldEditable *old_editable,
4019 scroll_int (GTK_TEXT (old_editable),
4020 y * GTK_TEXT(old_editable)->vadj->page_increment);
4024 gtk_text_move_to_row (GtkOldEditable *old_editable,
4030 gtk_text_move_to_column (GtkOldEditable *old_editable,
4035 text = GTK_TEXT (old_editable);
4037 text->cursor_virtual_x = 0; /* FIXME */
4039 undraw_cursor (text, FALSE);
4041 /* Move to the beginning of the line */
4042 while ((text->cursor_mark.index > 0) &&
4043 (GTK_TEXT_INDEX (text, text->cursor_mark.index - 1) != LINE_DELIM))
4044 decrement_mark (&text->cursor_mark);
4046 while (!LAST_INDEX (text, text->cursor_mark) &&
4047 (GTK_TEXT_INDEX (text, text->cursor_mark.index) != LINE_DELIM))
4051 else if (column == 0)
4054 advance_mark (&text->cursor_mark);
4057 find_cursor (text, TRUE);
4058 draw_cursor (text, FALSE);
4062 gtk_text_move_beginning_of_line (GtkText *text)
4064 gtk_text_move_to_column (GTK_OLD_EDITABLE (text), 0);
4069 gtk_text_move_end_of_line (GtkText *text)
4071 gtk_text_move_to_column (GTK_OLD_EDITABLE (text), -1);
4075 gtk_text_kill_char (GtkOldEditable *old_editable,
4080 text = GTK_TEXT (old_editable);
4082 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
4083 gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
4088 if (text->point.index + 1 <= TEXT_LENGTH (text))
4089 gtk_editable_delete_text (GTK_EDITABLE (old_editable), text->point.index, text->point.index + 1);
4093 if (text->point.index > 0)
4094 gtk_editable_delete_text (GTK_EDITABLE (old_editable), text->point.index - 1, text->point.index);
4100 gtk_text_delete_forward_character (GtkText *text)
4102 gtk_text_kill_char (GTK_OLD_EDITABLE (text), 1);
4106 gtk_text_delete_backward_character (GtkText *text)
4108 gtk_text_kill_char (GTK_OLD_EDITABLE (text), -1);
4112 gtk_text_kill_word (GtkOldEditable *old_editable,
4115 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
4116 gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
4119 gint old_pos = old_editable->current_pos;
4122 gtk_text_move_word (old_editable, 1);
4123 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_pos, old_editable->current_pos);
4127 gtk_text_move_word (old_editable, -1);
4128 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_editable->current_pos, old_pos);
4134 gtk_text_delete_forward_word (GtkText *text)
4136 gtk_text_kill_word (GTK_OLD_EDITABLE (text), 1);
4140 gtk_text_delete_backward_word (GtkText *text)
4142 gtk_text_kill_word (GTK_OLD_EDITABLE (text), -1);
4146 gtk_text_kill_line (GtkOldEditable *old_editable,
4149 gint old_pos = old_editable->current_pos;
4152 gtk_text_move_to_column (old_editable, -1);
4153 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_pos, old_editable->current_pos);
4157 gtk_text_move_to_column (old_editable, 0);
4158 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_editable->current_pos, old_pos);
4163 gtk_text_delete_line (GtkText *text)
4165 gtk_text_move_to_column (GTK_OLD_EDITABLE (text), 0);
4166 gtk_text_kill_line (GTK_OLD_EDITABLE (text), 1);
4170 gtk_text_delete_to_line_end (GtkText *text)
4172 gtk_text_kill_line (GTK_OLD_EDITABLE (text), 1);
4176 gtk_text_select_word (GtkText *text, guint32 time)
4181 GtkOldEditable *old_editable;
4182 old_editable = GTK_OLD_EDITABLE (text);
4184 gtk_text_move_backward_word (text);
4185 start_pos = text->cursor_mark.index;
4187 gtk_text_move_forward_word (text);
4188 end_pos = text->cursor_mark.index;
4190 old_editable->has_selection = TRUE;
4191 gtk_text_set_selection (old_editable, start_pos, end_pos);
4192 gtk_old_editable_claim_selection (old_editable, start_pos != end_pos, time);
4196 gtk_text_select_line (GtkText *text, guint32 time)
4201 GtkOldEditable *old_editable;
4202 old_editable = GTK_OLD_EDITABLE (text);
4204 gtk_text_move_beginning_of_line (text);
4205 start_pos = text->cursor_mark.index;
4207 gtk_text_move_end_of_line (text);
4208 gtk_text_move_forward_character (text);
4209 end_pos = text->cursor_mark.index;
4211 old_editable->has_selection = TRUE;
4212 gtk_text_set_selection (old_editable, start_pos, end_pos);
4213 gtk_old_editable_claim_selection (old_editable, start_pos != end_pos, time);
4216 /**********************************************************************/
4218 /**********************************************************************/
4221 adjust_adj (GtkText* text, GtkAdjustment* adj)
4225 gdk_window_get_size (text->text_area, NULL, &height);
4227 adj->step_increment = MIN (adj->upper, SCROLL_PIXELS);
4228 adj->page_increment = MIN (adj->upper, height - KEY_SCROLL_PIXELS);
4229 adj->page_size = MIN (adj->upper, height);
4230 adj->value = MIN (adj->value, adj->upper - adj->page_size);
4231 adj->value = MAX (adj->value, 0.0);
4233 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
4237 set_vertical_scroll_iterator (GtkText* text, LineParams* lp, void* data)
4239 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4241 if ((text->first_line_start_index >= lp->start.index) &&
4242 (text->first_line_start_index <= lp->end.index))
4244 svdata->mark = lp->start;
4246 if (text->first_line_start_index == lp->start.index)
4248 text->first_onscreen_ver_pixel = svdata->pixel_height + text->first_cut_pixels;
4252 text->first_onscreen_ver_pixel = svdata->pixel_height;
4253 text->first_cut_pixels = 0;
4256 text->vadj->value = text->first_onscreen_ver_pixel;
4259 svdata->pixel_height += LINE_HEIGHT (*lp);
4265 set_vertical_scroll_find_iterator (GtkText* text, LineParams* lp, void* data)
4267 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4270 if (svdata->pixel_height <= (gint) text->vadj->value &&
4271 svdata->pixel_height + LINE_HEIGHT(*lp) > (gint) text->vadj->value)
4273 svdata->mark = lp->start;
4275 text->first_cut_pixels = (gint)text->vadj->value - svdata->pixel_height;
4276 text->first_onscreen_ver_pixel = svdata->pixel_height;
4277 text->first_line_start_index = lp->start.index;
4283 svdata->pixel_height += LINE_HEIGHT (*lp);
4291 static GtkPropertyMark
4292 set_vertical_scroll (GtkText* text)
4294 GtkPropertyMark mark = find_mark (text, 0);
4295 SetVerticalScrollData data;
4299 data.pixel_height = 0;
4300 line_params_iterate (text, &mark, NULL, FALSE, &data, set_vertical_scroll_iterator);
4302 text->vadj->upper = data.pixel_height;
4303 orig_value = (gint) text->vadj->value;
4305 gdk_window_get_size (text->text_area, NULL, &height);
4307 text->vadj->step_increment = MIN (text->vadj->upper, SCROLL_PIXELS);
4308 text->vadj->page_increment = MIN (text->vadj->upper, height - KEY_SCROLL_PIXELS);
4309 text->vadj->page_size = MIN (text->vadj->upper, height);
4310 text->vadj->value = MIN (text->vadj->value, text->vadj->upper - text->vadj->page_size);
4311 text->vadj->value = MAX (text->vadj->value, 0.0);
4313 text->last_ver_value = (gint)text->vadj->value;
4315 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "changed");
4317 if (text->vadj->value != orig_value)
4319 /* We got clipped, and don't really know which line to put first. */
4320 data.pixel_height = 0;
4321 data.last_didnt_wrap = TRUE;
4323 line_params_iterate (text, &mark, NULL,
4325 set_vertical_scroll_find_iterator);
4332 scroll_int (GtkText* text, gint diff)
4336 text->vadj->value += diff;
4338 upper = text->vadj->upper - text->vadj->page_size;
4339 text->vadj->value = MIN (text->vadj->value, upper);
4340 text->vadj->value = MAX (text->vadj->value, 0.0);
4342 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "value_changed");
4346 process_exposes (GtkText *text)
4350 /* Make sure graphics expose events are processed before scrolling
4353 while ((event = gdk_event_get_graphics_expose (text->text_area)) != NULL)
4355 gtk_widget_send_expose (GTK_WIDGET (text), event);
4356 if (event->expose.count == 0)
4358 gdk_event_free (event);
4361 gdk_event_free (event);
4365 static gint last_visible_line_height (GtkText* text)
4367 GList *cache = text->line_start_cache;
4370 gdk_window_get_size (text->text_area, NULL, &height);
4372 for (; cache->next; cache = cache->next)
4373 if (pixel_height_of(text, cache->next) > height)
4377 return pixel_height_of(text, cache) - 1;
4382 static gint first_visible_line_height (GtkText* text)
4384 if (text->first_cut_pixels)
4385 return pixel_height_of(text, text->line_start_cache) + 1;
4391 scroll_down (GtkText* text, gint diff0)
4397 text->first_onscreen_ver_pixel += diff0;
4401 g_assert (text->line_start_cache);
4403 if (text->first_cut_pixels < LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1)
4405 text->first_cut_pixels += 1;
4409 text->first_cut_pixels = 0;
4411 text->line_start_cache = text->line_start_cache->next;
4413 text->first_line_start_index =
4414 CACHE_DATA(text->line_start_cache).start.index;
4416 if (!text->line_start_cache->next)
4417 fetch_lines_forward (text, 1);
4423 gdk_window_get_size (text->text_area, &width, &height);
4424 if (height > real_diff)
4425 gdk_draw_pixmap (text->text_area,
4433 height - real_diff);
4436 rect.y = MAX (0, height - real_diff);
4438 rect.height = MIN (height, real_diff);
4440 expose_text (text, &rect, FALSE);
4441 gtk_text_draw_focus ( (GtkWidget *) text);
4443 if (text->current_line)
4447 text->cursor_pos_y -= real_diff;
4448 cursor_min = drawn_cursor_min(text);
4451 find_mouse_cursor (text, text->cursor_pos_x,
4452 first_visible_line_height (text));
4455 if (height > real_diff)
4456 process_exposes (text);
4460 scroll_up (GtkText* text, gint diff0)
4466 text->first_onscreen_ver_pixel += diff0;
4470 g_assert (text->line_start_cache);
4472 if (text->first_cut_pixels > 0)
4474 text->first_cut_pixels -= 1;
4478 if (!text->line_start_cache->prev)
4479 fetch_lines_backward (text);
4481 text->line_start_cache = text->line_start_cache->prev;
4483 text->first_line_start_index =
4484 CACHE_DATA(text->line_start_cache).start.index;
4486 text->first_cut_pixels = LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1;
4492 gdk_window_get_size (text->text_area, &width, &height);
4493 if (height > real_diff)
4494 gdk_draw_pixmap (text->text_area,
4502 height - real_diff);
4507 rect.height = MIN (height, real_diff);
4509 expose_text (text, &rect, FALSE);
4510 gtk_text_draw_focus ( (GtkWidget *) text);
4512 if (text->current_line)
4517 text->cursor_pos_y += real_diff;
4518 cursor_max = drawn_cursor_max(text);
4519 gdk_window_get_size (text->text_area, NULL, &height);
4521 if (cursor_max >= height)
4522 find_mouse_cursor (text, text->cursor_pos_x,
4523 last_visible_line_height (text));
4526 if (height > real_diff)
4527 process_exposes (text);
4530 /**********************************************************************/
4532 /**********************************************************************/
4534 /* Assumes mark starts a line. Calculates the height, width, and
4535 * displayable character count of a single DISPLAYABLE line. That
4536 * means that in line-wrap mode, this does may not compute the
4537 * properties of an entire line. */
4539 find_line_params (GtkText* text,
4540 const GtkPropertyMark* mark,
4541 const PrevTabCont *tab_cont,
4542 PrevTabCont *next_cont)
4545 TabStopMark tab_mark = tab_cont->tab_start;
4546 guint max_display_pixels;
4551 gdk_window_get_size (text->text_area, (gint*) &max_display_pixels, NULL);
4552 max_display_pixels -= LINE_WRAP_ROOM;
4555 lp.tab_cont = *tab_cont;
4558 lp.pixel_width = tab_cont->pixel_offset;
4559 lp.displayable_chars = 0;
4561 lp.font_descent = 0;
4563 init_tab_cont (text, next_cont);
4565 while (!LAST_INDEX(text, lp.end))
4567 g_assert (lp.end.property);
4569 ch = GTK_TEXT_INDEX (text, lp.end.index);
4570 font = MARK_CURRENT_FONT (text, &lp.end);
4572 if (ch == LINE_DELIM)
4574 /* Newline doesn't count in computation of line height, even
4575 * if its in a bigger font than the rest of the line. Unless,
4576 * of course, there are no other characters. */
4578 if (!lp.font_ascent && !lp.font_descent)
4580 lp.font_ascent = font->ascent;
4581 lp.font_descent = font->descent;
4584 lp.tab_cont_next = *next_cont;
4589 ch_width = find_char_width (text, &lp.end, &tab_mark);
4591 if ((ch_width + lp.pixel_width > max_display_pixels) &&
4592 (lp.end.index > lp.start.index))
4596 if (text->line_wrap)
4598 next_cont->tab_start = tab_mark;
4599 next_cont->pixel_offset = 0;
4603 /* Here's the tough case, a tab is wrapping. */
4604 gint pixels_avail = max_display_pixels - lp.pixel_width;
4605 gint space_width = MARK_CURRENT_TEXT_FONT(text, &lp.end)->char_widths[' '];
4606 gint spaces_avail = pixels_avail / space_width;
4608 if (spaces_avail == 0)
4610 decrement_mark (&lp.end);
4614 advance_tab_mark (text, &next_cont->tab_start, '\t');
4615 next_cont->pixel_offset = space_width * (tab_mark.to_next_tab -
4617 lp.displayable_chars += 1;
4622 if (text->word_wrap)
4624 GtkPropertyMark saved_mark = lp.end;
4625 guint saved_characters = lp.displayable_chars;
4627 lp.displayable_chars += 1;
4629 if (text->use_wchar)
4631 while (!gdk_iswspace (GTK_TEXT_INDEX (text, lp.end.index)) &&
4632 (lp.end.index > lp.start.index))
4634 decrement_mark (&lp.end);
4635 lp.displayable_chars -= 1;
4640 while (!isspace(GTK_TEXT_INDEX (text, lp.end.index)) &&
4641 (lp.end.index > lp.start.index))
4643 decrement_mark (&lp.end);
4644 lp.displayable_chars -= 1;
4648 /* If whole line is one word, revert to char wrapping */
4649 if (lp.end.index == lp.start.index)
4651 lp.end = saved_mark;
4652 lp.displayable_chars = saved_characters;
4653 decrement_mark (&lp.end);
4658 /* Don't include this character, it will wrap. */
4659 decrement_mark (&lp.end);
4663 lp.tab_cont_next = *next_cont;
4670 lp.displayable_chars += 1;
4673 lp.font_ascent = MAX (font->ascent, lp.font_ascent);
4674 lp.font_descent = MAX (font->descent, lp.font_descent);
4675 lp.pixel_width += ch_width;
4677 advance_mark(&lp.end);
4678 advance_tab_mark (text, &tab_mark, ch);
4681 if (LAST_INDEX(text, lp.start))
4683 /* Special case, empty last line. */
4684 font = MARK_CURRENT_FONT (text, &lp.end);
4686 lp.font_ascent = font->ascent;
4687 lp.font_descent = font->descent;
4690 lp.tab_cont_next = *next_cont;
4696 expand_scratch_buffer (GtkText* text, guint len)
4698 if (len >= text->scratch_buffer_len)
4702 while (i <= len && i < MIN_GAP_SIZE) i <<= 1;
4704 if (text->use_wchar)
4706 if (text->scratch_buffer.wc)
4707 text->scratch_buffer.wc = g_new (GdkWChar, i);
4709 text->scratch_buffer.wc = g_realloc (text->scratch_buffer.wc,
4710 i*sizeof (GdkWChar));
4714 if (text->scratch_buffer.ch)
4715 text->scratch_buffer.ch = g_new (guchar, i);
4717 text->scratch_buffer.ch = g_realloc (text->scratch_buffer.ch, i);
4720 text->scratch_buffer_len = i;
4724 /* Side effect: modifies text->gc
4727 draw_bg_rect (GtkText* text, GtkPropertyMark *mark,
4728 gint x, gint y, gint width, gint height,
4729 gboolean already_cleared)
4731 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
4733 if ((mark->index >= MIN(old_editable->selection_start_pos, old_editable->selection_end_pos) &&
4734 mark->index < MAX(old_editable->selection_start_pos, old_editable->selection_end_pos)))
4736 gtk_paint_flat_box(GTK_WIDGET(text)->style, text->text_area,
4737 old_editable->has_selection ?
4738 GTK_STATE_SELECTED : GTK_STATE_ACTIVE,
4740 NULL, GTK_WIDGET(text), "text",
4741 x, y, width, height);
4743 else if (!gdk_color_equal(MARK_CURRENT_BACK (text, mark),
4744 >K_WIDGET(text)->style->base[GTK_WIDGET_STATE (text)]))
4746 gdk_gc_set_foreground (text->gc, MARK_CURRENT_BACK (text, mark));
4748 gdk_draw_rectangle (text->text_area,
4750 TRUE, x, y, width, height);
4752 else if (GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL])
4759 rect.height = height;
4761 clear_area (text, &rect);
4763 else if (!already_cleared)
4764 gdk_window_clear_area (text->text_area, x, y, width, height);
4768 draw_line (GtkText* text,
4769 gint pixel_start_height,
4772 GdkGCValues gc_values;
4775 guint running_offset = lp->tab_cont.pixel_offset;
4776 union { GdkWChar *wc; guchar *ch; } buffer;
4779 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
4781 guint selection_start_pos = MIN (old_editable->selection_start_pos, old_editable->selection_end_pos);
4782 guint selection_end_pos = MAX (old_editable->selection_start_pos, old_editable->selection_end_pos);
4784 GtkPropertyMark mark = lp->start;
4785 TabStopMark tab_mark = lp->tab_cont.tab_start;
4786 gint pixel_height = pixel_start_height + lp->font_ascent;
4787 guint chars = lp->displayable_chars;
4789 /* First provide a contiguous segment of memory. This makes reading
4790 * the code below *much* easier, and only incurs the cost of copying
4791 * when the line being displayed spans the gap. */
4792 if (mark.index <= text->gap_position &&
4793 mark.index + chars > text->gap_position)
4795 expand_scratch_buffer (text, chars);
4797 if (text->use_wchar)
4799 for (i = 0; i < chars; i += 1)
4800 text->scratch_buffer.wc[i] = GTK_TEXT_INDEX(text, mark.index + i);
4801 buffer.wc = text->scratch_buffer.wc;
4805 for (i = 0; i < chars; i += 1)
4806 text->scratch_buffer.ch[i] = GTK_TEXT_INDEX(text, mark.index + i);
4807 buffer.ch = text->scratch_buffer.ch;
4812 if (text->use_wchar)
4814 if (mark.index >= text->gap_position)
4815 buffer.wc = text->text.wc + mark.index + text->gap_size;
4817 buffer.wc = text->text.wc + mark.index;
4821 if (mark.index >= text->gap_position)
4822 buffer.ch = text->text.ch + mark.index + text->gap_size;
4824 buffer.ch = text->text.ch + mark.index;
4829 if (running_offset > 0)
4831 draw_bg_rect (text, &mark, 0, pixel_start_height, running_offset,
4832 LINE_HEIGHT (*lp), TRUE);
4838 if ((text->use_wchar && buffer.wc[0] != '\t') ||
4839 (!text->use_wchar && buffer.ch[0] != '\t'))
4841 union { GdkWChar *wc; guchar *ch; } next_tab;
4846 if (text->use_wchar)
4847 for (i=0; i<chars; i++)
4849 if (buffer.wc[i] == '\t')
4851 next_tab.wc = buffer.wc + i;
4856 next_tab.ch = memchr (buffer.ch, '\t', chars);
4858 len = MIN (MARK_CURRENT_PROPERTY (&mark)->length - mark.offset, chars);
4860 if (text->use_wchar)
4863 len = MIN (len, next_tab.wc - buffer.wc);
4868 len = MIN (len, next_tab.ch - buffer.ch);
4871 if (mark.index < selection_start_pos)
4872 len = MIN (len, selection_start_pos - mark.index);
4873 else if (mark.index < selection_end_pos)
4874 len = MIN (len, selection_end_pos - mark.index);
4876 font = MARK_CURRENT_FONT (text, &mark);
4877 if (font->type == GDK_FONT_FONT)
4879 gdk_gc_set_font (text->gc, font);
4880 gdk_gc_get_values (text->gc, &gc_values);
4881 if (text->use_wchar)
4882 pixel_width = gdk_text_width_wc (gc_values.font,
4885 pixel_width = gdk_text_width (gc_values.font,
4890 if (text->use_wchar)
4891 pixel_width = gdk_text_width_wc (font, buffer.wc, len);
4893 pixel_width = gdk_text_width (font, buffer.ch, len);
4896 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4897 pixel_width, LINE_HEIGHT (*lp), TRUE);
4899 if ((mark.index >= selection_start_pos) &&
4900 (mark.index < selection_end_pos))
4902 if (old_editable->has_selection)
4903 fg_gc = GTK_WIDGET(text)->style->text_gc[GTK_STATE_SELECTED];
4905 fg_gc = GTK_WIDGET(text)->style->text_gc[GTK_STATE_ACTIVE];
4909 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &mark));
4913 if (text->use_wchar)
4914 gdk_draw_text_wc (text->text_area, MARK_CURRENT_FONT (text, &mark),
4921 gdk_draw_text (text->text_area, MARK_CURRENT_FONT (text, &mark),
4928 running_offset += pixel_width;
4930 advance_tab_mark_n (text, &tab_mark, len);
4934 gint pixels_remaining;
4940 gdk_window_get_size (text->text_area, &pixels_remaining, NULL);
4941 pixels_remaining -= (LINE_WRAP_ROOM + running_offset);
4943 space_width = MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
4945 spaces_avail = pixels_remaining / space_width;
4946 spaces_avail = MIN (spaces_avail, tab_mark.to_next_tab);
4948 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4949 spaces_avail * space_width, LINE_HEIGHT (*lp), TRUE);
4951 running_offset += tab_mark.to_next_tab *
4952 MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
4954 advance_tab_mark (text, &tab_mark, '\t');
4957 advance_mark_n (&mark, len);
4958 if (text->use_wchar)
4967 draw_line_wrap (GtkText* text, guint height /* baseline height */)
4974 if (text->line_wrap)
4976 bitmap = text->line_wrap_bitmap;
4977 bitmap_width = line_wrap_width;
4978 bitmap_height = line_wrap_height;
4982 bitmap = text->line_arrow_bitmap;
4983 bitmap_width = line_arrow_width;
4984 bitmap_height = line_arrow_height;
4987 gdk_window_get_size (text->text_area, &width, NULL);
4988 width -= LINE_WRAP_ROOM;
4990 gdk_gc_set_stipple (text->gc,
4993 gdk_gc_set_fill (text->gc, GDK_STIPPLED);
4995 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
4997 gdk_gc_set_ts_origin (text->gc,
4999 height - bitmap_height - 1);
5001 gdk_draw_rectangle (text->text_area,
5005 height - bitmap_height - 1 /* one pixel above the baseline. */,
5009 gdk_gc_set_ts_origin (text->gc, 0, 0);
5011 gdk_gc_set_fill (text->gc, GDK_SOLID);
5015 undraw_cursor (GtkText* text, gint absolute)
5017 GtkOldEditable *old_editable = (GtkOldEditable *) text;
5019 TDEBUG (("in undraw_cursor\n"));
5022 text->cursor_drawn_level = 0;
5024 if ((text->cursor_drawn_level ++ == 0) &&
5025 (old_editable->selection_start_pos == old_editable->selection_end_pos) &&
5026 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5030 g_assert(text->cursor_mark.property);
5032 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5034 draw_bg_rect (text, &text->cursor_mark,
5036 text->cursor_pos_y - text->cursor_char_offset - font->ascent,
5037 1, font->ascent + 1, FALSE);
5039 if (text->cursor_char)
5041 if (font->type == GDK_FONT_FONT)
5042 gdk_gc_set_font (text->gc, font);
5044 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &text->cursor_mark));
5046 gdk_draw_text_wc (text->text_area, font,
5049 text->cursor_pos_y - text->cursor_char_offset,
5057 drawn_cursor_min (GtkText* text)
5061 g_assert(text->cursor_mark.property);
5063 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5065 return text->cursor_pos_y - text->cursor_char_offset - font->ascent;
5069 drawn_cursor_max (GtkText* text)
5071 g_assert(text->cursor_mark.property);
5073 return text->cursor_pos_y - text->cursor_char_offset;
5077 draw_cursor (GtkText* text, gint absolute)
5079 GtkOldEditable *old_editable = (GtkOldEditable *)text;
5081 TDEBUG (("in draw_cursor\n"));
5084 text->cursor_drawn_level = 1;
5086 if ((--text->cursor_drawn_level == 0) &&
5087 old_editable->editable &&
5088 (old_editable->selection_start_pos == old_editable->selection_end_pos) &&
5089 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5093 g_assert (text->cursor_mark.property);
5095 font = MARK_CURRENT_FONT (text, &text->cursor_mark);
5097 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5099 gdk_draw_line (text->text_area, text->gc, text->cursor_pos_x,
5100 text->cursor_pos_y - text->cursor_char_offset,
5102 text->cursor_pos_y - text->cursor_char_offset - font->ascent);
5107 create_bg_gc (GtkText *text)
5111 values.tile = GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL];
5112 values.fill = GDK_TILED;
5114 return gdk_gc_new_with_values (text->text_area, &values,
5115 GDK_GC_FILL | GDK_GC_TILE);
5119 clear_area (GtkText *text, GdkRectangle *area)
5121 GtkWidget *widget = GTK_WIDGET (text);
5127 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
5129 gdk_gc_set_ts_origin (text->bg_gc,
5130 (- text->first_onscreen_hor_pixel) % width,
5131 (- text->first_onscreen_ver_pixel) % height);
5133 gdk_draw_rectangle (text->text_area, text->bg_gc, TRUE,
5134 area->x, area->y, area->width, area->height);
5137 gdk_window_clear_area (text->text_area, area->x, area->y, area->width, area->height);
5141 expose_text (GtkText* text, GdkRectangle *area, gboolean cursor)
5143 GList *cache = text->line_start_cache;
5144 gint pixels = - text->first_cut_pixels;
5145 gint min_y = MAX (0, area->y);
5146 gint max_y = MAX (0, area->y + area->height);
5149 gdk_window_get_size (text->text_area, NULL, &height);
5150 max_y = MIN (max_y, height);
5152 TDEBUG (("in expose x=%d y=%d w=%d h=%d\n", area->x, area->y, area->width, area->height));
5154 clear_area (text, area);
5156 for (; pixels < height; cache = cache->next)
5158 if (pixels < max_y && (pixels + (gint)LINE_HEIGHT(CACHE_DATA(cache))) >= min_y)
5160 draw_line (text, pixels, &CACHE_DATA(cache));
5162 if (CACHE_DATA(cache).wraps)
5163 draw_line_wrap (text, pixels + CACHE_DATA(cache).font_ascent);
5166 if (cursor && GTK_WIDGET_HAS_FOCUS (text))
5168 if (CACHE_DATA(cache).start.index <= text->cursor_mark.index &&
5169 CACHE_DATA(cache).end.index >= text->cursor_mark.index)
5171 /* We undraw and draw the cursor here to get the drawn
5172 * level right ... FIXME - maybe the second parameter
5173 * of draw_cursor should work differently
5175 undraw_cursor (text, FALSE);
5176 draw_cursor (text, FALSE);
5180 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5184 fetch_lines_forward (text, 1);
5193 gtk_text_update_text (GtkOldEditable *old_editable,
5197 GtkText *text = GTK_TEXT (old_editable);
5199 GList *cache = text->line_start_cache;
5200 gint pixels = - text->first_cut_pixels;
5206 end_pos = TEXT_LENGTH (text);
5208 if (end_pos < start_pos)
5211 gdk_window_get_size (text->text_area, &width, &height);
5217 TDEBUG (("in expose span start=%d stop=%d\n", start_pos, end_pos));
5219 for (; pixels < height; cache = cache->next)
5221 if (CACHE_DATA(cache).start.index < end_pos)
5223 if (CACHE_DATA(cache).end.index >= start_pos)
5226 area.y = MAX(0,pixels);
5227 area.height = pixels + LINE_HEIGHT(CACHE_DATA(cache)) - area.y;
5233 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5237 fetch_lines_forward (text, 1);
5245 expose_text (text, &area, TRUE);
5249 recompute_geometry (GtkText* text)
5251 GtkPropertyMark mark, start_mark;
5258 mark = start_mark = set_vertical_scroll (text);
5260 /* We need a real start of a line when calling fetch_lines().
5261 * not the start of a wrapped line.
5263 while (mark.index > 0 &&
5264 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
5265 decrement_mark (&mark);
5267 gdk_window_get_size (text->text_area, &width, &height);
5269 /* Fetch an entire line, to make sure that we get all the text
5270 * we backed over above, in addition to enough text to fill up
5271 * the space vertically
5274 new_lines = fetch_lines (text,
5280 mark = CACHE_DATA (g_list_last (new_lines)).end;
5281 if (!LAST_INDEX (text, mark))
5283 advance_mark (&mark);
5285 new_lines = g_list_concat (new_lines,
5290 height + text->first_cut_pixels));
5293 /* Now work forward to the actual first onscreen line */
5295 while (CACHE_DATA (new_lines).start.index < start_mark.index)
5296 new_lines = new_lines->next;
5298 text->line_start_cache = new_lines;
5300 find_cursor (text, TRUE);
5303 /**********************************************************************/
5305 /**********************************************************************/
5308 gtk_text_set_selection (GtkOldEditable *old_editable,
5312 GtkText *text = GTK_TEXT (old_editable);
5314 guint start1, end1, start2, end2;
5317 end = TEXT_LENGTH (text);
5319 start1 = MIN(start,end);
5320 end1 = MAX(start,end);
5321 start2 = MIN(old_editable->selection_start_pos, old_editable->selection_end_pos);
5322 end2 = MAX(old_editable->selection_start_pos, old_editable->selection_end_pos);
5324 if (start2 < start1)
5328 tmp = start1; start1 = start2; start2 = tmp;
5329 tmp = end1; end1 = end2; end2 = tmp;
5332 undraw_cursor (text, FALSE);
5333 old_editable->selection_start_pos = start;
5334 old_editable->selection_end_pos = end;
5335 draw_cursor (text, FALSE);
5337 /* Expose only what changed */
5339 if (start1 < start2)
5340 gtk_text_update_text (old_editable, start1, MIN(end1, start2));
5343 gtk_text_update_text (old_editable, MAX(end1, start2), end2);
5344 else if (end2 < end1)
5345 gtk_text_update_text (old_editable, end2, end1);
5349 /**********************************************************************/
5351 /**********************************************************************/
5353 #ifdef DEBUG_GTK_TEXT
5355 gtk_text_show_cache_line (GtkText *text, GList *cache,
5356 const char* what, const char* func, gint line)
5358 LineParams *lp = &CACHE_DATA(cache);
5361 if (cache == text->line_start_cache)
5362 g_message ("Line Start Cache: ");
5364 if (cache == text->current_line)
5365 g_message("Current Line: ");
5367 g_message ("%s:%d: cache line %s s=%d,e=%d,lh=%d (",
5375 for (i = lp->start.index; i < (lp->end.index + lp->wraps); i += 1)
5376 g_message ("%c", GTK_TEXT_INDEX (text, i));
5382 gtk_text_show_cache (GtkText *text, const char* func, gint line)
5384 GList *l = text->line_start_cache;
5390 /* back up to the absolute beginning of the line cache */
5394 g_message ("*** line cache ***\n");
5395 for (; l; l = l->next)
5396 gtk_text_show_cache_line (text, l, "all", func, line);
5400 gtk_text_assert_mark (GtkText *text,
5401 GtkPropertyMark *mark,
5402 GtkPropertyMark *before,
5403 GtkPropertyMark *after,
5408 GtkPropertyMark correct_mark = find_mark (text, mark->index);
5410 if (mark->offset != correct_mark.offset ||
5411 mark->property != correct_mark.property)
5412 g_warning ("incorrect %s text property marker in %s:%d, index %d -- bad!", where, msg, line, mark->index);
5416 gtk_text_assert (GtkText *text,
5420 GList* cache = text->line_start_cache;
5421 GtkPropertyMark* before_mark = NULL;
5422 GtkPropertyMark* after_mark = NULL;
5424 gtk_text_show_props (text, msg, line);
5426 for (; cache->prev; cache = cache->prev)
5429 g_message ("*** line markers ***\n");
5431 for (; cache; cache = cache->next)
5433 after_mark = &CACHE_DATA(cache).end;
5434 gtk_text_assert_mark (text, &CACHE_DATA(cache).start, before_mark, after_mark, msg, "start", line);
5435 before_mark = &CACHE_DATA(cache).start;
5438 after_mark = &CACHE_DATA(cache->next).start;
5442 gtk_text_assert_mark (text, &CACHE_DATA(cache).end, before_mark, after_mark, msg, "end", line);
5443 before_mark = &CACHE_DATA(cache).end;
5448 gtk_text_show_adj (GtkText *text,
5454 g_message ("*** adjustment ***\n");
5456 g_message ("%s:%d: %s adjustment l=%.1f u=%.1f v=%.1f si=%.1f pi=%.1f ps=%.1f\n",
5463 adj->step_increment,
5464 adj->page_increment,
5469 gtk_text_show_props (GtkText *text,
5473 GList* props = text->text_properties;
5476 g_message ("%s:%d: ", msg, line);
5478 for (; props; props = props->next)
5480 TextProperty *p = (TextProperty*)props->data;
5482 proplen += p->length;
5484 g_message ("[%d,%p,", p->length, p);
5485 if (p->flags & PROPERTY_FONT)
5486 g_message ("%p,", p->font);
5489 if (p->flags & PROPERTY_FOREGROUND)
5490 g_message ("%ld, ", p->fore_color.pixel);
5493 if (p->flags & PROPERTY_BACKGROUND)
5494 g_message ("%ld] ", p->back_color.pixel);
5501 if (proplen - 1 != TEXT_LENGTH(text))
5502 g_warning ("incorrect property list length in %s:%d -- bad!", msg, line);
5506 #define __GTK_TEXT_C__
5507 #include "gtkaliasdef.c"