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 if (text->scratch_buffer.ch)
944 g_free (text->scratch_buffer.ch);
945 text->scratch_buffer.wc = NULL;
946 text->scratch_buffer_len = 0;
950 move_gap (text, text->point.index);
951 make_forward_space (text, length);
955 char *chars_nt = (char *)chars;
958 chars_nt = g_new (char, length+1);
959 memcpy (chars_nt, chars, length);
960 chars_nt[length] = 0;
962 numwcs = gdk_mbstowcs (text->text.wc + text->gap_position, chars_nt,
964 if (chars_nt != chars)
972 memcpy(text->text.ch + text->gap_position, chars, length);
975 if (!text->freeze_count && (text->line_start_cache != NULL))
979 for (i=0; i<numwcs; i++)
980 if (text->text.wc[text->gap_position + i] == '\n')
985 for (i=0; i<numwcs; i++)
986 if (text->text.ch[text->gap_position + i] == '\n')
993 insert_text_property (text, font, fore, back, numwcs);
995 text->gap_size -= numwcs;
996 text->gap_position += numwcs;
998 if (text->point.index < text->first_line_start_index)
999 text->first_line_start_index += numwcs;
1000 if (text->point.index < old_editable->selection_start_pos)
1001 old_editable->selection_start_pos += numwcs;
1002 if (text->point.index < old_editable->selection_end_pos)
1003 old_editable->selection_end_pos += numwcs;
1004 /* We'll reset the cursor later anyways if we aren't frozen */
1005 if (text->point.index < text->cursor_mark.index)
1006 text->cursor_mark.index += numwcs;
1008 advance_mark_n (&text->point, numwcs);
1010 if (!text->freeze_count && (text->line_start_cache != NULL))
1011 insert_expose (text, old_height, numwcs, new_line_count);
1015 gtk_text_thaw (text);
1019 gtk_text_backward_delete (GtkText *text,
1022 g_return_val_if_fail (GTK_IS_TEXT (text), FALSE);
1024 if (nchars > text->point.index || nchars <= 0)
1027 gtk_text_set_point (text, text->point.index - nchars);
1029 return gtk_text_forward_delete (text, nchars);
1033 gtk_text_forward_delete (GtkText *text,
1036 guint old_lines = 0, old_height = 0;
1037 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
1038 gboolean frozen = FALSE;
1040 g_return_val_if_fail (GTK_IS_TEXT (text), FALSE);
1042 if (text->point.index + nchars > TEXT_LENGTH (text) || nchars <= 0)
1045 if (!text->freeze_count && nchars > FREEZE_LENGTH)
1047 gtk_text_freeze (text);
1051 if (!text->freeze_count && text->line_start_cache != NULL)
1053 /* We need to undraw the cursor here, since we may later
1054 * delete the cursor's property
1056 undraw_cursor (text, FALSE);
1057 find_line_containing_point (text, text->point.index, TRUE);
1058 compute_lines_pixels (text, nchars, &old_lines, &old_height);
1061 /* FIXME, or resizing after deleting will be odd */
1062 if (text->point.index < text->first_line_start_index)
1064 if (text->point.index + nchars >= text->first_line_start_index)
1066 text->first_line_start_index = text->point.index;
1067 while ((text->first_line_start_index > 0) &&
1068 (GTK_TEXT_INDEX (text, text->first_line_start_index - 1)
1070 text->first_line_start_index -= 1;
1074 text->first_line_start_index -= nchars;
1077 if (text->point.index < old_editable->selection_start_pos)
1078 old_editable->selection_start_pos -=
1079 MIN(nchars, old_editable->selection_start_pos - text->point.index);
1080 if (text->point.index < old_editable->selection_end_pos)
1081 old_editable->selection_end_pos -=
1082 MIN(nchars, old_editable->selection_end_pos - text->point.index);
1083 /* We'll reset the cursor later anyways if we aren't frozen */
1084 if (text->point.index < text->cursor_mark.index)
1085 move_mark_n (&text->cursor_mark,
1086 -MIN(nchars, text->cursor_mark.index - text->point.index));
1088 move_gap (text, text->point.index);
1090 text->gap_size += nchars;
1092 delete_text_property (text, nchars);
1094 if (!text->freeze_count && (text->line_start_cache != NULL))
1096 delete_expose (text, nchars, old_lines, old_height);
1097 draw_cursor (text, FALSE);
1101 gtk_text_thaw (text);
1107 gtk_text_set_position (GtkOldEditable *old_editable,
1110 GtkText *text = (GtkText *) old_editable;
1113 position = gtk_text_get_length (text);
1115 undraw_cursor (text, FALSE);
1116 text->cursor_mark = find_mark (text, position);
1117 find_cursor (text, TRUE);
1118 draw_cursor (text, FALSE);
1119 gtk_editable_select_region (GTK_EDITABLE (old_editable), 0, 0);
1123 gtk_text_get_chars (GtkOldEditable *old_editable,
1131 g_return_val_if_fail (GTK_IS_TEXT (old_editable), NULL);
1132 text = GTK_TEXT (old_editable);
1135 end_pos = TEXT_LENGTH (text);
1137 if ((start_pos < 0) ||
1138 (end_pos > TEXT_LENGTH (text)) ||
1139 (end_pos < start_pos))
1142 move_gap (text, TEXT_LENGTH (text));
1143 make_forward_space (text, 1);
1145 if (text->use_wchar)
1148 ch = text->text.wc[end_pos];
1149 text->text.wc[end_pos] = 0;
1150 retval = gdk_wcstombs (text->text.wc + start_pos);
1151 text->text.wc[end_pos] = ch;
1156 ch = text->text.ch[end_pos];
1157 text->text.ch[end_pos] = 0;
1158 retval = g_strdup (text->text.ch + start_pos);
1159 text->text.ch[end_pos] = ch;
1167 gtk_text_destroy (GtkObject *object)
1171 g_return_if_fail (GTK_IS_TEXT (object));
1173 text = GTK_TEXT (object);
1177 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
1178 gtk_object_unref (GTK_OBJECT (text->hadj));
1183 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
1184 gtk_object_unref (GTK_OBJECT (text->vadj));
1190 g_source_remove (text->timer);
1194 GTK_OBJECT_CLASS(parent_class)->destroy (object);
1198 gtk_text_finalize (GObject *object)
1203 g_return_if_fail (GTK_IS_TEXT (object));
1205 text = GTK_TEXT (object);
1207 /* Clean up the internal structures */
1208 if (text->use_wchar)
1209 g_free (text->text.wc);
1211 g_free (text->text.ch);
1213 tmp_list = text->text_properties;
1216 destroy_text_property (tmp_list->data);
1217 tmp_list = tmp_list->next;
1220 if (text->current_font)
1221 text_font_unref (text->current_font);
1223 g_list_free (text->text_properties);
1225 if (text->use_wchar)
1227 if (text->scratch_buffer.wc)
1228 g_free (text->scratch_buffer.wc);
1232 if (text->scratch_buffer.ch)
1233 g_free (text->scratch_buffer.ch);
1236 g_list_free (text->tab_stops);
1238 G_OBJECT_CLASS (parent_class)->finalize (object);
1242 gtk_text_realize (GtkWidget *widget)
1245 GtkOldEditable *old_editable;
1246 GdkWindowAttr attributes;
1247 gint attributes_mask;
1249 g_return_if_fail (GTK_IS_TEXT (widget));
1251 text = GTK_TEXT (widget);
1252 old_editable = GTK_OLD_EDITABLE (widget);
1253 GTK_WIDGET_SET_FLAGS (text, GTK_REALIZED);
1255 attributes.window_type = GDK_WINDOW_CHILD;
1256 attributes.x = widget->allocation.x;
1257 attributes.y = widget->allocation.y;
1258 attributes.width = widget->allocation.width;
1259 attributes.height = widget->allocation.height;
1260 attributes.wclass = GDK_INPUT_OUTPUT;
1261 attributes.visual = gtk_widget_get_visual (widget);
1262 attributes.colormap = gtk_widget_get_colormap (widget);
1263 attributes.event_mask = gtk_widget_get_events (widget);
1264 attributes.event_mask |= (GDK_EXPOSURE_MASK |
1265 GDK_BUTTON_PRESS_MASK |
1266 GDK_BUTTON_RELEASE_MASK |
1267 GDK_BUTTON_MOTION_MASK |
1268 GDK_ENTER_NOTIFY_MASK |
1269 GDK_LEAVE_NOTIFY_MASK |
1270 GDK_KEY_PRESS_MASK);
1271 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1273 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
1274 gdk_window_set_user_data (widget->window, text);
1276 attributes.x = (widget->style->xthickness + TEXT_BORDER_ROOM);
1277 attributes.y = (widget->style->ythickness + TEXT_BORDER_ROOM);
1278 attributes.width = MAX (1, (gint)widget->allocation.width - (gint)attributes.x * 2);
1279 attributes.height = MAX (1, (gint)widget->allocation.height - (gint)attributes.y * 2);
1281 attributes.cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), GDK_XTERM);
1282 attributes_mask |= GDK_WA_CURSOR;
1284 text->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
1285 gdk_window_set_user_data (text->text_area, text);
1287 gdk_cursor_destroy (attributes.cursor); /* The X server will keep it around as long as necessary */
1289 widget->style = gtk_style_attach (widget->style, widget->window);
1291 /* Can't call gtk_style_set_background here because it's handled specially */
1292 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1293 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1295 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1296 text->bg_gc = create_bg_gc (text);
1298 text->line_wrap_bitmap = gdk_bitmap_create_from_data (text->text_area,
1299 (gchar*) line_wrap_bits,
1303 text->line_arrow_bitmap = gdk_bitmap_create_from_data (text->text_area,
1304 (gchar*) line_arrow_bits,
1308 text->gc = gdk_gc_new (text->text_area);
1309 gdk_gc_set_exposures (text->gc, TRUE);
1310 gdk_gc_set_foreground (text->gc, &widget->style->text[GTK_STATE_NORMAL]);
1312 realize_properties (text);
1313 gdk_window_show (text->text_area);
1314 init_properties (text);
1316 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
1317 gtk_old_editable_claim_selection (old_editable, TRUE, GDK_CURRENT_TIME);
1319 recompute_geometry (text);
1323 gtk_text_style_set (GtkWidget *widget,
1324 GtkStyle *previous_style)
1326 GtkText *text = GTK_TEXT (widget);
1328 if (GTK_WIDGET_REALIZED (widget))
1330 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1331 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1335 gdk_gc_destroy (text->bg_gc);
1339 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1340 text->bg_gc = create_bg_gc (text);
1342 recompute_geometry (text);
1345 if (text->current_font)
1346 text_font_unref (text->current_font);
1347 text->current_font = get_text_font (gtk_style_get_font (widget->style));
1351 gtk_text_state_changed (GtkWidget *widget,
1352 GtkStateType previous_state)
1354 GtkText *text = GTK_TEXT (widget);
1356 if (GTK_WIDGET_REALIZED (widget))
1358 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1359 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1364 gtk_text_unrealize (GtkWidget *widget)
1368 g_return_if_fail (GTK_IS_TEXT (widget));
1370 text = GTK_TEXT (widget);
1372 gdk_window_set_user_data (text->text_area, NULL);
1373 gdk_window_destroy (text->text_area);
1374 text->text_area = NULL;
1376 gdk_gc_destroy (text->gc);
1381 gdk_gc_destroy (text->bg_gc);
1385 gdk_pixmap_unref (text->line_wrap_bitmap);
1386 gdk_pixmap_unref (text->line_arrow_bitmap);
1388 unrealize_properties (text);
1392 if (GTK_WIDGET_CLASS (parent_class)->unrealize)
1393 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
1397 clear_focus_area (GtkText *text, gint area_x, gint area_y, gint area_width, gint area_height)
1399 GtkWidget *widget = GTK_WIDGET (text);
1402 gint ythick = TEXT_BORDER_ROOM + widget->style->ythickness;
1403 gint xthick = TEXT_BORDER_ROOM + widget->style->xthickness;
1407 if (area_width == 0 || area_height == 0)
1410 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1412 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
1414 gdk_gc_set_ts_origin (text->bg_gc,
1415 (- text->first_onscreen_hor_pixel + xthick) % width,
1416 (- text->first_onscreen_ver_pixel + ythick) % height);
1421 gc = widget->style->base_gc[widget->state];
1423 gdk_draw_rectangle (GTK_WIDGET (text)->window, gc, TRUE,
1424 area_x, area_y, area_width, area_height);
1428 gtk_text_draw_focus (GtkWidget *widget)
1434 g_return_if_fail (GTK_IS_TEXT (widget));
1436 text = GTK_TEXT (widget);
1438 if (GTK_WIDGET_DRAWABLE (widget))
1440 gint ythick = widget->style->ythickness;
1441 gint xthick = widget->style->xthickness;
1442 gint xextra = TEXT_BORDER_ROOM;
1443 gint yextra = TEXT_BORDER_ROOM;
1445 TDEBUG (("in gtk_text_draw_focus\n"));
1449 width = widget->allocation.width;
1450 height = widget->allocation.height;
1452 if (GTK_WIDGET_HAS_FOCUS (widget))
1461 gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
1462 NULL, widget, "text",
1464 widget->allocation.width,
1465 widget->allocation.height);
1468 gtk_paint_shadow (widget->style, widget->window,
1469 GTK_STATE_NORMAL, GTK_SHADOW_IN,
1470 NULL, widget, "text",
1471 x, y, width, height);
1475 width -= 2 * xthick;
1476 height -= 2 * ythick;
1479 clear_focus_area (text, x, y, width, yextra);
1481 clear_focus_area (text, x, y + yextra,
1482 xextra, y + height - 2 * yextra);
1484 clear_focus_area (text, x + width - xextra, y + yextra,
1485 xextra, height - 2 * ythick);
1487 clear_focus_area (text, x, x + height - yextra, width, yextra);
1491 TDEBUG (("in gtk_text_draw_focus (undrawable !!!)\n"));
1496 gtk_text_size_request (GtkWidget *widget,
1497 GtkRequisition *requisition)
1505 g_return_if_fail (GTK_IS_TEXT (widget));
1506 g_return_if_fail (requisition != NULL);
1508 xthickness = widget->style->xthickness + TEXT_BORDER_ROOM;
1509 ythickness = widget->style->ythickness + TEXT_BORDER_ROOM;
1511 font = gtk_style_get_font (widget->style);
1513 char_height = MIN_TEXT_HEIGHT_LINES * (font->ascent +
1516 char_width = MIN_TEXT_WIDTH_LINES * (gdk_text_width (font,
1517 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
1521 requisition->width = char_width + xthickness * 2;
1522 requisition->height = char_height + ythickness * 2;
1526 gtk_text_size_allocate (GtkWidget *widget,
1527 GtkAllocation *allocation)
1531 g_return_if_fail (GTK_IS_TEXT (widget));
1532 g_return_if_fail (allocation != NULL);
1534 text = GTK_TEXT (widget);
1536 widget->allocation = *allocation;
1537 if (GTK_WIDGET_REALIZED (widget))
1539 gdk_window_move_resize (widget->window,
1540 allocation->x, allocation->y,
1541 allocation->width, allocation->height);
1543 gdk_window_move_resize (text->text_area,
1544 widget->style->xthickness + TEXT_BORDER_ROOM,
1545 widget->style->ythickness + TEXT_BORDER_ROOM,
1546 MAX (1, (gint)widget->allocation.width - (gint)(widget->style->xthickness +
1547 (gint)TEXT_BORDER_ROOM) * 2),
1548 MAX (1, (gint)widget->allocation.height - (gint)(widget->style->ythickness +
1549 (gint)TEXT_BORDER_ROOM) * 2));
1551 recompute_geometry (text);
1556 gtk_text_expose (GtkWidget *widget,
1557 GdkEventExpose *event)
1559 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1560 g_return_val_if_fail (event != NULL, FALSE);
1562 if (event->window == GTK_TEXT (widget)->text_area)
1564 TDEBUG (("in gtk_text_expose (expose)\n"));
1565 expose_text (GTK_TEXT (widget), &event->area, TRUE);
1567 else if (event->count == 0)
1569 TDEBUG (("in gtk_text_expose (focus)\n"));
1570 gtk_text_draw_focus (widget);
1577 gtk_text_scroll_timeout (gpointer data)
1581 GdkModifierType mask;
1583 GDK_THREADS_ENTER ();
1585 text = GTK_TEXT (data);
1588 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1590 if (mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK))
1592 GdkEvent *event = gdk_event_new (GDK_MOTION_NOTIFY);
1594 event->motion.is_hint = 0;
1595 event->motion.x = x;
1596 event->motion.y = y;
1597 event->motion.state = mask;
1599 gtk_text_motion_notify (GTK_WIDGET (text), (GdkEventMotion *)event);
1601 gdk_event_free (event);
1604 GDK_THREADS_LEAVE ();
1610 gtk_text_button_press (GtkWidget *widget,
1611 GdkEventButton *event)
1614 GtkOldEditable *old_editable;
1616 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1617 g_return_val_if_fail (event != NULL, FALSE);
1619 text = GTK_TEXT (widget);
1620 old_editable = GTK_OLD_EDITABLE (widget);
1622 if (text->button && (event->button != text->button))
1625 text->button = event->button;
1627 if (!GTK_WIDGET_HAS_FOCUS (widget))
1628 gtk_widget_grab_focus (widget);
1630 if (event->button == 1)
1632 switch (event->type)
1634 case GDK_BUTTON_PRESS:
1635 gtk_grab_add (widget);
1637 undraw_cursor (text, FALSE);
1638 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1639 draw_cursor (text, FALSE);
1641 /* Set it now, so we display things right. We'll unset it
1642 * later if things don't work out */
1643 old_editable->has_selection = TRUE;
1644 gtk_text_set_selection (GTK_OLD_EDITABLE (text),
1645 text->cursor_mark.index,
1646 text->cursor_mark.index);
1650 case GDK_2BUTTON_PRESS:
1651 gtk_text_select_word (text, event->time);
1654 case GDK_3BUTTON_PRESS:
1655 gtk_text_select_line (text, event->time);
1662 else if (event->type == GDK_BUTTON_PRESS)
1664 if ((event->button == 2) && old_editable->editable)
1666 if (old_editable->selection_start_pos == old_editable->selection_end_pos ||
1667 old_editable->has_selection)
1669 undraw_cursor (text, FALSE);
1670 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1671 draw_cursor (text, FALSE);
1675 gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
1676 gdk_atom_intern_static_string ("UTF8_STRING"),
1681 GdkDisplay *display = gtk_widget_get_display (widget);
1683 gtk_grab_add (widget);
1685 undraw_cursor (text, FALSE);
1686 find_mouse_cursor (text, event->x, event->y);
1687 draw_cursor (text, FALSE);
1689 gtk_text_set_selection (GTK_OLD_EDITABLE (text),
1690 text->cursor_mark.index,
1691 text->cursor_mark.index);
1693 old_editable->has_selection = FALSE;
1694 if (gdk_selection_owner_get_for_display (display,
1695 GDK_SELECTION_PRIMARY) == widget->window)
1696 gtk_selection_owner_set_for_display (display,
1698 GDK_SELECTION_PRIMARY,
1707 gtk_text_button_release (GtkWidget *widget,
1708 GdkEventButton *event)
1711 GtkOldEditable *old_editable;
1712 GdkDisplay *display;
1714 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1715 g_return_val_if_fail (event != NULL, FALSE);
1717 text = GTK_TEXT (widget);
1719 gtk_grab_remove (widget);
1721 if (text->button != event->button)
1728 g_source_remove (text->timer);
1732 if (event->button == 1)
1734 text = GTK_TEXT (widget);
1735 old_editable = GTK_OLD_EDITABLE (widget);
1736 display = gtk_widget_get_display (widget);
1738 gtk_grab_remove (widget);
1740 old_editable->has_selection = FALSE;
1741 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
1743 if (gtk_selection_owner_set_for_display (display,
1745 GDK_SELECTION_PRIMARY,
1747 old_editable->has_selection = TRUE;
1749 gtk_text_update_text (old_editable, old_editable->selection_start_pos,
1750 old_editable->selection_end_pos);
1754 if (gdk_selection_owner_get_for_display (display,
1755 GDK_SELECTION_PRIMARY) == widget->window)
1756 gtk_selection_owner_set_for_display (display,
1758 GDK_SELECTION_PRIMARY,
1762 else if (event->button == 3)
1764 gtk_grab_remove (widget);
1767 undraw_cursor (text, FALSE);
1768 find_cursor (text, TRUE);
1769 draw_cursor (text, FALSE);
1775 gtk_text_motion_notify (GtkWidget *widget,
1776 GdkEventMotion *event)
1781 GdkModifierType mask;
1783 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1784 g_return_val_if_fail (event != NULL, FALSE);
1786 text = GTK_TEXT (widget);
1790 mask = event->state;
1791 if (event->is_hint || (text->text_area != event->window))
1793 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1796 if ((text->button == 0) ||
1797 !(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)))
1800 gdk_window_get_size (text->text_area, NULL, &height);
1802 if ((y < 0) || (y > height))
1804 if (text->timer == 0)
1806 text->timer = g_timeout_add (SCROLL_TIME,
1807 gtk_text_scroll_timeout,
1811 scroll_int (text, y/2);
1813 scroll_int (text, (y - height)/2);
1819 undraw_cursor (GTK_TEXT (widget), FALSE);
1820 find_mouse_cursor (GTK_TEXT (widget), x, y);
1821 draw_cursor (GTK_TEXT (widget), FALSE);
1823 gtk_text_set_selection (GTK_OLD_EDITABLE (text),
1824 GTK_OLD_EDITABLE (text)->selection_start_pos,
1825 text->cursor_mark.index);
1831 gtk_text_insert_text (GtkEditable *editable,
1832 const gchar *new_text,
1833 gint new_text_length,
1836 GtkText *text = GTK_TEXT (editable);
1838 GdkColor *fore, *back;
1840 TextProperty *property;
1842 gtk_text_set_point (text, *position);
1844 property = MARK_CURRENT_PROPERTY (&text->point);
1845 font = property->flags & PROPERTY_FONT ? property->font->gdk_font : NULL;
1846 fore = property->flags & PROPERTY_FOREGROUND ? &property->fore_color : NULL;
1847 back = property->flags & PROPERTY_BACKGROUND ? &property->back_color : NULL;
1849 gtk_text_insert (text, font, fore, back, new_text, new_text_length);
1851 *position = text->point.index;
1855 gtk_text_delete_text (GtkEditable *editable,
1861 g_return_if_fail (start_pos >= 0);
1863 text = GTK_TEXT (editable);
1865 gtk_text_set_point (text, start_pos);
1867 end_pos = TEXT_LENGTH (text);
1869 if (end_pos > start_pos)
1870 gtk_text_forward_delete (text, end_pos - start_pos);
1874 gtk_text_key_press (GtkWidget *widget,
1878 GtkOldEditable *old_editable;
1883 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1884 g_return_val_if_fail (event != NULL, FALSE);
1886 text = GTK_TEXT (widget);
1887 old_editable = GTK_OLD_EDITABLE (widget);
1889 key = event->keyval;
1892 if ((GTK_OLD_EDITABLE(text)->editable == FALSE))
1894 switch (event->keyval)
1898 if (event->state & GDK_CONTROL_MASK)
1899 scroll_int (text, -text->vadj->value);
1905 if (event->state & GDK_CONTROL_MASK)
1906 scroll_int (text, +text->vadj->upper);
1910 case GDK_KP_Page_Up:
1911 case GDK_Page_Up: scroll_int (text, -text->vadj->page_increment); break;
1912 case GDK_KP_Page_Down:
1913 case GDK_Page_Down: scroll_int (text, +text->vadj->page_increment); break;
1915 case GDK_Up: scroll_int (text, -KEY_SCROLL_PIXELS); break;
1917 case GDK_Down: scroll_int (text, +KEY_SCROLL_PIXELS); break;
1920 if (event->state & GDK_CONTROL_MASK)
1921 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
1932 gint extend_selection;
1934 guint initial_pos = old_editable->current_pos;
1936 text->point = find_mark (text, text->cursor_mark.index);
1938 extend_selection = event->state & GDK_SHIFT_MASK;
1939 extend_start = FALSE;
1941 if (extend_selection)
1943 old_editable->has_selection = TRUE;
1945 if (old_editable->selection_start_pos == old_editable->selection_end_pos)
1947 old_editable->selection_start_pos = text->point.index;
1948 old_editable->selection_end_pos = text->point.index;
1951 extend_start = (text->point.index == old_editable->selection_start_pos);
1954 switch (event->keyval)
1958 if (event->state & GDK_CONTROL_MASK)
1959 move_cursor_buffer_ver (text, -1);
1961 gtk_text_move_beginning_of_line (text);
1965 if (event->state & GDK_CONTROL_MASK)
1966 move_cursor_buffer_ver (text, +1);
1968 gtk_text_move_end_of_line (text);
1970 case GDK_KP_Page_Up:
1971 case GDK_Page_Up: move_cursor_page_ver (text, -1); break;
1972 case GDK_KP_Page_Down:
1973 case GDK_Page_Down: move_cursor_page_ver (text, +1); break;
1974 /* CUA has Ctrl-Up/Ctrl-Down as paragraph up down */
1976 case GDK_Up: move_cursor_ver (text, -1); break;
1978 case GDK_Down: move_cursor_ver (text, +1); break;
1981 if (event->state & GDK_CONTROL_MASK)
1982 gtk_text_move_backward_word (text);
1984 move_cursor_hor (text, -1);
1988 if (event->state & GDK_CONTROL_MASK)
1989 gtk_text_move_forward_word (text);
1991 move_cursor_hor (text, +1);
1995 if (event->state & GDK_CONTROL_MASK)
1996 gtk_text_delete_backward_word (text);
1998 gtk_text_delete_backward_character (text);
2001 gtk_text_delete_line (text);
2005 if (event->state & GDK_SHIFT_MASK)
2007 extend_selection = FALSE;
2008 gtk_editable_paste_clipboard (GTK_EDITABLE (old_editable));
2010 else if (event->state & GDK_CONTROL_MASK)
2012 gtk_editable_copy_clipboard (GTK_EDITABLE (old_editable));
2016 /* gtk_toggle_insert(text) -- IMPLEMENT */
2021 if (event->state & GDK_CONTROL_MASK)
2022 gtk_text_delete_forward_word (text);
2023 else if (event->state & GDK_SHIFT_MASK)
2025 extend_selection = FALSE;
2026 gtk_editable_cut_clipboard (GTK_EDITABLE (old_editable));
2029 gtk_text_delete_forward_character (text);
2032 case GDK_ISO_Left_Tab:
2034 position = text->point.index;
2035 gtk_editable_insert_text (GTK_EDITABLE (old_editable), "\t", 1, &position);
2039 if (event->state & GDK_CONTROL_MASK)
2040 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
2043 position = text->point.index;
2044 gtk_editable_insert_text (GTK_EDITABLE (old_editable), "\n", 1, &position);
2048 /* Don't insert literally */
2055 if (event->state & GDK_CONTROL_MASK)
2058 if ((key >= 'A') && (key <= 'Z'))
2064 gtk_text_move_beginning_of_line (text);
2067 gtk_text_move_backward_character (text);
2070 gtk_editable_copy_clipboard (text);
2073 gtk_text_delete_forward_character (text);
2076 gtk_text_move_end_of_line (text);
2079 gtk_text_move_forward_character (text);
2082 gtk_text_delete_backward_character (text);
2085 gtk_text_delete_to_line_end (text);
2088 gtk_text_move_next_line (text);
2091 gtk_text_move_previous_line (text);
2094 gtk_text_delete_line (text);
2097 gtk_editable_paste_clipboard (text);
2100 gtk_text_delete_backward_word (text);
2103 gtk_editable_cut_clipboard (text);
2111 else if (event->state & GDK_MOD1_MASK)
2114 if ((key >= 'A') && (key <= 'Z'))
2120 gtk_text_move_backward_word (text);
2123 gtk_text_delete_forward_word (text);
2126 gtk_text_move_forward_word (text);
2134 else if (event->length > 0)
2136 extend_selection = FALSE;
2138 gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
2139 position = text->point.index;
2140 gtk_editable_insert_text (GTK_EDITABLE (old_editable), event->string, event->length, &position);
2146 if (return_val && (old_editable->current_pos != initial_pos))
2148 if (extend_selection)
2150 if (old_editable->current_pos < old_editable->selection_start_pos)
2151 gtk_text_set_selection (old_editable, old_editable->current_pos,
2152 old_editable->selection_end_pos);
2153 else if (old_editable->current_pos > old_editable->selection_end_pos)
2154 gtk_text_set_selection (old_editable, old_editable->selection_start_pos,
2155 old_editable->current_pos);
2159 gtk_text_set_selection (old_editable, old_editable->current_pos,
2160 old_editable->selection_end_pos);
2162 gtk_text_set_selection (old_editable, old_editable->selection_start_pos,
2163 old_editable->current_pos);
2167 gtk_text_set_selection (old_editable, 0, 0);
2169 gtk_old_editable_claim_selection (old_editable,
2170 old_editable->selection_start_pos != old_editable->selection_end_pos,
2179 gtk_text_adjustment (GtkAdjustment *adjustment,
2182 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2183 g_return_if_fail (GTK_IS_TEXT (text));
2185 /* Just ignore it if we haven't been size-allocated and realized yet */
2186 if (text->line_start_cache == NULL)
2189 if (adjustment == text->hadj)
2191 g_warning ("horizontal scrolling not implemented");
2195 gint diff = ((gint)adjustment->value) - text->last_ver_value;
2199 undraw_cursor (text, FALSE);
2202 scroll_down (text, diff);
2203 else /* if (diff < 0) */
2204 scroll_up (text, diff);
2206 draw_cursor (text, FALSE);
2208 text->last_ver_value = adjustment->value;
2214 gtk_text_adjustment_destroyed (GtkAdjustment *adjustment,
2217 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2218 g_return_if_fail (GTK_IS_TEXT (text));
2220 if (adjustment == text->hadj)
2221 gtk_text_set_adjustments (text, NULL, text->vadj);
2222 if (adjustment == text->vadj)
2223 gtk_text_set_adjustments (text, text->hadj, NULL);
2227 static GtkPropertyMark
2228 find_this_line_start_mark (GtkText* text, guint point_position, const GtkPropertyMark* near)
2230 GtkPropertyMark mark;
2232 mark = find_mark_near (text, point_position, near);
2234 while (mark.index > 0 &&
2235 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
2236 decrement_mark (&mark);
2242 init_tab_cont (GtkText* text, PrevTabCont* tab_cont)
2244 tab_cont->pixel_offset = 0;
2245 tab_cont->tab_start.tab_stops = text->tab_stops;
2246 tab_cont->tab_start.to_next_tab = (gulong) text->tab_stops->data;
2248 if (!tab_cont->tab_start.to_next_tab)
2249 tab_cont->tab_start.to_next_tab = text->default_tab_width;
2253 line_params_iterate (GtkText* text,
2254 const GtkPropertyMark* mark0,
2255 const PrevTabCont* tab_mark0,
2258 LineIteratorFunction iter)
2259 /* mark0 MUST be a real line start. if ALLOC, allocate line params
2260 * from a mem chunk. DATA is passed to ITER_CALL, which is called
2261 * for each line following MARK, iteration continues unless ITER_CALL
2264 GtkPropertyMark mark = *mark0;
2265 PrevTabCont tab_conts[2];
2266 LineParams *lp, lpbuf;
2267 gint tab_cont_index = 0;
2270 tab_conts[0] = *tab_mark0;
2272 init_tab_cont (text, tab_conts);
2277 lp = g_slice_new (LineParams);
2281 *lp = find_line_params (text, &mark, tab_conts + tab_cont_index,
2282 tab_conts + (tab_cont_index + 1) % 2);
2284 if ((*iter) (text, lp, data))
2287 if (LAST_INDEX (text, lp->end))
2291 advance_mark (&mark);
2292 tab_cont_index = (tab_cont_index + 1) % 2;
2297 fetch_lines_iterator (GtkText* text, LineParams* lp, void* data)
2299 FetchLinesData *fldata = (FetchLinesData*) data;
2301 fldata->new_lines = g_list_prepend (fldata->new_lines, lp);
2303 switch (fldata->fl_type)
2305 case FetchLinesCount:
2306 if (!text->line_wrap || !lp->wraps)
2309 if (fldata->data >= fldata->data_max)
2313 case FetchLinesPixels:
2315 fldata->data += LINE_HEIGHT(*lp);
2317 if (fldata->data >= fldata->data_max)
2327 fetch_lines (GtkText* text,
2328 const GtkPropertyMark* mark0,
2329 const PrevTabCont* tab_cont0,
2333 FetchLinesData fl_data;
2335 fl_data.new_lines = NULL;
2337 fl_data.data_max = data;
2338 fl_data.fl_type = fl_type;
2340 line_params_iterate (text, mark0, tab_cont0, TRUE, &fl_data, fetch_lines_iterator);
2342 return g_list_reverse (fl_data.new_lines);
2346 fetch_lines_backward (GtkText* text)
2348 GList *new_line_start;
2349 GtkPropertyMark mark;
2351 if (CACHE_DATA(text->line_start_cache).start.index == 0)
2354 mark = find_this_line_start_mark (text,
2355 CACHE_DATA(text->line_start_cache).start.index - 1,
2356 &CACHE_DATA(text->line_start_cache).start);
2358 new_line_start = fetch_lines (text, &mark, NULL, FetchLinesCount, 1);
2360 while (new_line_start->next)
2361 new_line_start = new_line_start->next;
2363 new_line_start->next = text->line_start_cache;
2364 text->line_start_cache->prev = new_line_start;
2368 fetch_lines_forward (GtkText* text, gint line_count)
2370 GtkPropertyMark mark;
2371 GList* line = text->line_start_cache;
2376 mark = CACHE_DATA(line).end;
2378 if (LAST_INDEX (text, mark))
2381 advance_mark(&mark);
2383 line->next = fetch_lines (text, &mark, &CACHE_DATA(line).tab_cont_next, FetchLinesCount, line_count);
2386 line->next->prev = line;
2389 /* Compute the number of lines, and vertical pixels for n characters
2390 * starting from the point
2393 compute_lines_pixels (GtkText* text, guint char_count,
2394 guint *lines, guint *pixels)
2396 GList *line = text->current_line;
2397 gint chars_left = char_count;
2402 /* If chars_left == 0, that means we're joining two lines in a
2403 * deletion, so add in the values for the next line as well
2405 for (; line && chars_left >= 0; line = line->next)
2407 *pixels += LINE_HEIGHT(CACHE_DATA(line));
2409 if (line == text->current_line)
2410 chars_left -= CACHE_DATA(line).end.index - text->point.index + 1;
2412 chars_left -= CACHE_DATA(line).end.index - CACHE_DATA(line).start.index + 1;
2414 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2418 chars_left = 0; /* force another loop */
2421 fetch_lines_forward (text, 1);
2426 total_line_height (GtkText* text, GList* line, gint line_count)
2430 for (; line && line_count > 0; line = line->next)
2432 height += LINE_HEIGHT(CACHE_DATA(line));
2434 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2438 fetch_lines_forward (text, line_count);
2445 swap_lines (GtkText* text, GList* old, GList* new, guint old_line_count)
2447 if (old == text->line_start_cache)
2451 for (; old_line_count > 0; old_line_count -= 1)
2453 while (text->line_start_cache &&
2455 CACHE_DATA(text->line_start_cache).wraps)
2456 remove_cache_line(text, text->line_start_cache);
2458 remove_cache_line(text, text->line_start_cache);
2461 last = g_list_last (new);
2463 last->next = text->line_start_cache;
2465 if (text->line_start_cache)
2466 text->line_start_cache->prev = last;
2468 text->line_start_cache = new;
2474 g_assert (old->prev);
2478 for (; old_line_count > 0; old_line_count -= 1)
2480 while (old && text->line_wrap && CACHE_DATA(old).wraps)
2481 old = remove_cache_line (text, old);
2483 old = remove_cache_line (text, old);
2489 last = g_list_last (new);
2499 correct_cache_delete (GtkText* text, gint nchars, gint lines)
2501 GList* cache = text->current_line;
2504 for (i = 0; cache && i < lines; i += 1, cache = cache->next)
2507 for (; cache; cache = cache->next)
2509 GtkPropertyMark *start = &CACHE_DATA(cache).start;
2510 GtkPropertyMark *end = &CACHE_DATA(cache).end;
2512 start->index -= nchars;
2513 end->index -= nchars;
2515 if (LAST_INDEX (text, text->point) &&
2516 start->index == text->point.index)
2517 *start = text->point;
2518 else if (start->property == text->point.property)
2519 start->offset = start->index - (text->point.index - text->point.offset);
2521 if (LAST_INDEX (text, text->point) &&
2522 end->index == text->point.index)
2524 if (end->property == text->point.property)
2525 end->offset = end->index - (text->point.index - text->point.offset);
2527 /*TEXT_ASSERT_MARK(text, start, "start");*/
2528 /*TEXT_ASSERT_MARK(text, end, "end");*/
2533 delete_expose (GtkText* text, guint nchars, guint old_lines, guint old_pixels)
2535 GtkWidget *widget = GTK_WIDGET (text);
2538 guint new_pixels = 0;
2540 GList* new_line = NULL;
2543 text->cursor_virtual_x = 0;
2545 correct_cache_delete (text, nchars, old_lines);
2547 pixel_height = pixel_height_of(text, text->current_line) -
2548 LINE_HEIGHT(CACHE_DATA(text->current_line));
2550 if (CACHE_DATA(text->current_line).start.index == text->point.index)
2551 CACHE_DATA(text->current_line).start = text->point;
2553 new_line = fetch_lines (text,
2554 &CACHE_DATA(text->current_line).start,
2555 &CACHE_DATA(text->current_line).tab_cont,
2559 swap_lines (text, text->current_line, new_line, old_lines);
2561 text->current_line = new_line;
2563 new_pixels = total_line_height (text, new_line, 1);
2565 gdk_window_get_size (text->text_area, &width, &height);
2567 if (old_pixels != new_pixels)
2569 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2571 gdk_draw_pixmap (text->text_area,
2575 pixel_height + old_pixels,
2577 pixel_height + new_pixels,
2581 text->vadj->upper += new_pixels;
2582 text->vadj->upper -= old_pixels;
2583 adjust_adj (text, text->vadj);
2587 rect.y = pixel_height;
2589 rect.height = new_pixels;
2591 expose_text (text, &rect, FALSE);
2592 gtk_text_draw_focus ( (GtkWidget *) text);
2594 text->cursor_mark = text->point;
2596 find_cursor (text, TRUE);
2598 if (old_pixels != new_pixels)
2600 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2603 rect.y = pixel_height + new_pixels;
2605 rect.height = height - rect.y;
2607 expose_text (text, &rect, FALSE);
2610 process_exposes (text);
2617 /* note, the point has already been moved forward */
2619 correct_cache_insert (GtkText* text, gint nchars)
2622 GtkPropertyMark *start;
2623 GtkPropertyMark *end;
2624 gboolean was_split = FALSE;
2626 /* We need to distinguish whether the property was split in the
2627 * insert or not, so we check if the point (which points after
2628 * the insertion here), points to the same character as the
2629 * point before. Ugh.
2633 GtkPropertyMark tmp_mark = text->point;
2634 move_mark_n (&tmp_mark, -1);
2636 if (tmp_mark.property != text->point.property)
2640 /* If we inserted a property exactly at the beginning of the
2641 * line, we have to correct here, or fetch_lines will
2644 start = &CACHE_DATA(text->current_line).start;
2646 /* Check if if we split exactly at the beginning of the line:
2647 * (was_split won't be set if we are inserting at the end of the text,
2648 * so we don't check)
2650 if (start->offset == MARK_CURRENT_PROPERTY (start)->length)
2651 SET_PROPERTY_MARK (start, start->property->next, 0);
2652 /* Check if we inserted a property at the beginning of the text: */
2653 else if (was_split &&
2654 (start->property == text->point.property) &&
2655 (start->index == text->point.index - nchars))
2656 SET_PROPERTY_MARK (start, start->property->prev, 0);
2658 /* Now correct the offsets, and check for start or end marks that
2659 * are after the point, yet point to a property before the point's
2660 * property. This indicates that they are meant to point to the
2661 * second half of a property we split in insert_text_property(), so
2662 * we fix them up that way.
2664 cache = text->current_line->next;
2666 for (; cache; cache = cache->next)
2668 start = &CACHE_DATA(cache).start;
2669 end = &CACHE_DATA(cache).end;
2671 if (LAST_INDEX (text, text->point) &&
2672 start->index == text->point.index)
2673 *start = text->point;
2674 else if (start->index >= text->point.index - nchars)
2676 if (!was_split && start->property == text->point.property)
2677 move_mark_n(start, nchars);
2680 if (start->property->next &&
2681 (start->property->next->next == text->point.property))
2683 g_assert (start->offset >= MARK_CURRENT_PROPERTY (start)->length);
2684 start->offset -= MARK_CURRENT_PROPERTY (start)->length;
2685 start->property = text->point.property;
2687 start->index += nchars;
2691 if (LAST_INDEX (text, text->point) &&
2692 end->index == text->point.index)
2694 if (end->index >= text->point.index - nchars)
2696 if (!was_split && end->property == text->point.property)
2697 move_mark_n(end, nchars);
2700 if (end->property->next &&
2701 (end->property->next->next == text->point.property))
2703 g_assert (end->offset >= MARK_CURRENT_PROPERTY (end)->length);
2704 end->offset -= MARK_CURRENT_PROPERTY (end)->length;
2705 end->property = text->point.property;
2707 end->index += nchars;
2711 /*TEXT_ASSERT_MARK(text, start, "start");*/
2712 /*TEXT_ASSERT_MARK(text, end, "end");*/
2718 insert_expose (GtkText* text, guint old_pixels, gint nchars,
2719 guint new_line_count)
2721 GtkWidget *widget = GTK_WIDGET (text);
2724 guint new_pixels = 0;
2726 GList* new_lines = NULL;
2729 text->cursor_virtual_x = 0;
2731 undraw_cursor (text, FALSE);
2733 correct_cache_insert (text, nchars);
2735 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2737 pixel_height = pixel_height_of(text, text->current_line) -
2738 LINE_HEIGHT(CACHE_DATA(text->current_line));
2740 new_lines = fetch_lines (text,
2741 &CACHE_DATA(text->current_line).start,
2742 &CACHE_DATA(text->current_line).tab_cont,
2746 swap_lines (text, text->current_line, new_lines, 1);
2748 text->current_line = new_lines;
2750 new_pixels = total_line_height (text, new_lines, new_line_count);
2752 gdk_window_get_size (text->text_area, &width, &height);
2754 if (old_pixels != new_pixels)
2756 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2758 gdk_draw_pixmap (text->text_area,
2762 pixel_height + old_pixels,
2764 pixel_height + new_pixels,
2766 height + (old_pixels - new_pixels) - pixel_height);
2769 text->vadj->upper += new_pixels;
2770 text->vadj->upper -= old_pixels;
2771 adjust_adj (text, text->vadj);
2775 rect.y = pixel_height;
2777 rect.height = new_pixels;
2779 expose_text (text, &rect, FALSE);
2780 gtk_text_draw_focus ( (GtkWidget *) text);
2782 text->cursor_mark = text->point;
2784 find_cursor (text, TRUE);
2786 draw_cursor (text, FALSE);
2788 if (old_pixels != new_pixels)
2790 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2793 rect.y = pixel_height + new_pixels;
2795 rect.height = height - rect.y;
2797 expose_text (text, &rect, FALSE);
2800 process_exposes (text);
2803 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2808 /* Text property functions */
2811 font_hash (gconstpointer font)
2813 return gdk_font_id ((const GdkFont*) font);
2816 static GHashTable *font_cache_table = NULL;
2819 get_text_font (GdkFont* gfont)
2824 if (!font_cache_table)
2825 font_cache_table = g_hash_table_new (font_hash, (GEqualFunc) gdk_font_equal);
2827 tf = g_hash_table_lookup (font_cache_table, gfont);
2835 tf = g_new (GtkTextFont, 1);
2838 tf->gdk_font = gfont;
2839 gdk_font_ref (gfont);
2841 for(i = 0; i < 256; i += 1)
2842 tf->char_widths[i] = gdk_char_width (gfont, (char)i);
2844 g_hash_table_insert (font_cache_table, gfont, tf);
2850 text_font_unref (GtkTextFont *text_font)
2852 text_font->ref_count--;
2853 if (text_font->ref_count == 0)
2855 g_hash_table_remove (font_cache_table, text_font->gdk_font);
2856 gdk_font_unref (text_font->gdk_font);
2862 text_properties_equal (TextProperty* prop, GdkFont* font, const GdkColor *fore, const GdkColor *back)
2864 if (prop->flags & PROPERTY_FONT)
2867 GtkTextFont *text_font;
2872 text_font = get_text_font (font);
2874 retval = (prop->font == text_font);
2875 text_font_unref (text_font);
2884 if (prop->flags & PROPERTY_FOREGROUND)
2886 if (!fore || !gdk_color_equal (&prop->fore_color, fore))
2893 if (prop->flags & PROPERTY_BACKGROUND)
2895 if (!back || !gdk_color_equal (&prop->back_color, back))
2906 realize_property (GtkText *text, TextProperty *prop)
2908 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2910 if (prop->flags & PROPERTY_FOREGROUND)
2911 gdk_colormap_alloc_color (colormap, &prop->fore_color, FALSE, FALSE);
2913 if (prop->flags & PROPERTY_BACKGROUND)
2914 gdk_colormap_alloc_color (colormap, &prop->back_color, FALSE, FALSE);
2918 realize_properties (GtkText *text)
2920 GList *tmp_list = text->text_properties;
2924 realize_property (text, tmp_list->data);
2926 tmp_list = tmp_list->next;
2931 unrealize_property (GtkText *text, TextProperty *prop)
2933 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2935 if (prop->flags & PROPERTY_FOREGROUND)
2936 gdk_colormap_free_colors (colormap, &prop->fore_color, 1);
2938 if (prop->flags & PROPERTY_BACKGROUND)
2939 gdk_colormap_free_colors (colormap, &prop->back_color, 1);
2943 unrealize_properties (GtkText *text)
2945 GList *tmp_list = text->text_properties;
2949 unrealize_property (text, tmp_list->data);
2951 tmp_list = tmp_list->next;
2955 static TextProperty*
2956 new_text_property (GtkText *text, GdkFont *font, const GdkColor* fore,
2957 const GdkColor* back, guint length)
2961 prop = g_slice_new (TextProperty);
2966 prop->flags |= PROPERTY_FONT;
2967 prop->font = get_text_font (font);
2974 prop->flags |= PROPERTY_FOREGROUND;
2975 prop->fore_color = *fore;
2980 prop->flags |= PROPERTY_BACKGROUND;
2981 prop->back_color = *back;
2984 prop->length = length;
2986 if (GTK_WIDGET_REALIZED (text))
2987 realize_property (text, prop);
2993 destroy_text_property (TextProperty *prop)
2996 text_font_unref (prop->font);
2998 g_slice_free (TextProperty, prop);
3001 /* Flop the memory between the point and the gap around like a
3004 move_gap (GtkText* text, guint index)
3006 if (text->gap_position < index)
3008 gint diff = index - text->gap_position;
3010 if (text->use_wchar)
3011 g_memmove (text->text.wc + text->gap_position,
3012 text->text.wc + text->gap_position + text->gap_size,
3013 diff*sizeof (GdkWChar));
3015 g_memmove (text->text.ch + text->gap_position,
3016 text->text.ch + text->gap_position + text->gap_size,
3019 text->gap_position = index;
3021 else if (text->gap_position > index)
3023 gint diff = text->gap_position - index;
3025 if (text->use_wchar)
3026 g_memmove (text->text.wc + index + text->gap_size,
3027 text->text.wc + index,
3028 diff*sizeof (GdkWChar));
3030 g_memmove (text->text.ch + index + text->gap_size,
3031 text->text.ch + index,
3034 text->gap_position = index;
3038 /* Increase the gap size. */
3040 make_forward_space (GtkText* text, guint len)
3042 if (text->gap_size < len)
3044 guint sum = MAX(2*len, MIN_GAP_SIZE) + text->text_end;
3046 if (sum >= text->text_len)
3050 while (i <= sum) i <<= 1;
3052 if (text->use_wchar)
3053 text->text.wc = (GdkWChar *)g_realloc(text->text.wc,
3054 i*sizeof(GdkWChar));
3056 text->text.ch = (guchar *)g_realloc(text->text.ch, i);
3060 if (text->use_wchar)
3061 g_memmove (text->text.wc + text->gap_position + text->gap_size + 2*len,
3062 text->text.wc + text->gap_position + text->gap_size,
3063 (text->text_end - (text->gap_position + text->gap_size))
3066 g_memmove (text->text.ch + text->gap_position + text->gap_size + 2*len,
3067 text->text.ch + text->gap_position + text->gap_size,
3068 text->text_end - (text->gap_position + text->gap_size));
3070 text->text_end += len*2;
3071 text->gap_size += len*2;
3075 /* Inserts into the text property list a list element that guarantees
3076 * that for len characters following the point, text has the correct
3077 * property. does not move point. adjusts text_properties_point and
3078 * text_properties_point_offset relative to the current value of
3081 insert_text_property (GtkText* text, GdkFont* font,
3082 const GdkColor *fore, const GdkColor* back, guint len)
3084 GtkPropertyMark *mark = &text->point;
3085 TextProperty* forward_prop = MARK_CURRENT_PROPERTY(mark);
3086 TextProperty* backward_prop = MARK_PREV_PROPERTY(mark);
3088 if (MARK_OFFSET(mark) == 0)
3090 /* Point is on the boundary of two properties.
3091 * If it is the same as either, grow, else insert
3094 if (text_properties_equal(forward_prop, font, fore, back))
3096 /* Grow the property in front of us. */
3098 MARK_PROPERTY_LENGTH(mark) += len;
3100 else if (backward_prop &&
3101 text_properties_equal(backward_prop, font, fore, back))
3103 /* Grow property behind us, point property and offset
3106 SET_PROPERTY_MARK (&text->point,
3107 MARK_PREV_LIST_PTR (mark),
3108 backward_prop->length);
3110 backward_prop->length += len;
3112 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3113 (forward_prop->length == 1))
3115 /* Next property just has last position, take it over */
3117 if (GTK_WIDGET_REALIZED (text))
3118 unrealize_property (text, forward_prop);
3120 forward_prop->flags = 0;
3123 forward_prop->flags |= PROPERTY_FONT;
3124 forward_prop->font = get_text_font (font);
3127 forward_prop->font = NULL;
3131 forward_prop->flags |= PROPERTY_FOREGROUND;
3132 forward_prop->fore_color = *fore;
3136 forward_prop->flags |= PROPERTY_BACKGROUND;
3137 forward_prop->back_color = *back;
3139 forward_prop->length += len;
3141 if (GTK_WIDGET_REALIZED (text))
3142 realize_property (text, forward_prop);
3146 /* Splice a new property into the list. */
3148 GList* new_prop = g_list_alloc();
3150 new_prop->next = MARK_LIST_PTR(mark);
3151 new_prop->prev = MARK_PREV_LIST_PTR(mark);
3152 new_prop->next->prev = new_prop;
3155 new_prop->prev->next = new_prop;
3157 new_prop->data = new_text_property (text, font, fore, back, len);
3159 SET_PROPERTY_MARK (mark, new_prop, 0);
3164 /* The following will screw up the line_start cache,
3165 * we'll fix it up in correct_cache_insert
3168 /* In the middle of forward_prop, if properties are equal,
3169 * just add to its length, else split it into two and splice
3171 if (text_properties_equal (forward_prop, font, fore, back))
3173 forward_prop->length += len;
3175 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3176 (MARK_OFFSET(mark) + 1 == forward_prop->length))
3178 /* Inserting before only the last position in the text */
3181 forward_prop->length -= 1;
3183 new_prop = g_list_alloc();
3184 new_prop->data = new_text_property (text, font, fore, back, len+1);
3185 new_prop->prev = MARK_LIST_PTR(mark);
3186 new_prop->next = NULL;
3187 MARK_NEXT_LIST_PTR(mark) = new_prop;
3189 SET_PROPERTY_MARK (mark, new_prop, 0);
3193 GList* new_prop = g_list_alloc();
3194 GList* new_prop_forward = g_list_alloc();
3195 gint old_length = forward_prop->length;
3196 GList* next = MARK_NEXT_LIST_PTR(mark);
3198 /* Set the new lengths according to where they are split. Construct
3199 * two new properties. */
3200 forward_prop->length = MARK_OFFSET(mark);
3202 new_prop_forward->data =
3203 new_text_property(text,
3204 forward_prop->flags & PROPERTY_FONT ?
3205 forward_prop->font->gdk_font : NULL,
3206 forward_prop->flags & PROPERTY_FOREGROUND ?
3207 &forward_prop->fore_color : NULL,
3208 forward_prop->flags & PROPERTY_BACKGROUND ?
3209 &forward_prop->back_color : NULL,
3210 old_length - forward_prop->length);
3212 new_prop->data = new_text_property(text, font, fore, back, len);
3214 /* Now splice things in. */
3215 MARK_NEXT_LIST_PTR(mark) = new_prop;
3216 new_prop->prev = MARK_LIST_PTR(mark);
3218 new_prop->next = new_prop_forward;
3219 new_prop_forward->prev = new_prop;
3221 new_prop_forward->next = next;
3224 next->prev = new_prop_forward;
3226 SET_PROPERTY_MARK (mark, new_prop, 0);
3230 while (text->text_properties_end->next)
3231 text->text_properties_end = text->text_properties_end->next;
3233 while (text->text_properties->prev)
3234 text->text_properties = text->text_properties->prev;
3238 delete_text_property (GtkText* text, guint nchars)
3240 /* Delete nchars forward from point. */
3242 /* Deleting text properties is problematical, because we
3243 * might be storing around marks pointing to a property.
3245 * The marks in question and how we handle them are:
3247 * point: We know the new value, since it will be at the
3248 * end of the deleted text, and we move it there
3250 * cursor: We just remove the mark and set it equal to the
3251 * point after the operation.
3252 * line-start cache: We replace most affected lines.
3253 * The current line gets used to fetch the new
3254 * lines so, if necessary, (delete at the beginning
3255 * of a line) we fix it up by setting it equal to the
3263 for(; nchars; nchars -= 1)
3265 prop = MARK_CURRENT_PROPERTY(&text->point);
3269 if (prop->length == 0)
3271 tmp = MARK_LIST_PTR (&text->point);
3273 is_first = tmp == text->text_properties;
3275 MARK_LIST_PTR (&text->point) = g_list_remove_link (tmp, tmp);
3276 text->point.offset = 0;
3278 if (GTK_WIDGET_REALIZED (text))
3279 unrealize_property (text, prop);
3281 destroy_text_property (prop);
3282 g_list_free_1 (tmp);
3284 prop = MARK_CURRENT_PROPERTY (&text->point);
3287 text->text_properties = MARK_LIST_PTR (&text->point);
3289 g_assert (prop->length != 0);
3291 else if (prop->length == text->point.offset)
3293 MARK_LIST_PTR (&text->point) = MARK_NEXT_LIST_PTR (&text->point);
3294 text->point.offset = 0;
3298 /* Check to see if we have just the single final position remaining
3299 * along in a property; if so, combine it with the previous property
3301 if (LAST_INDEX (text, text->point) &&
3302 (MARK_OFFSET (&text->point) == 0) &&
3303 (MARK_PREV_LIST_PTR(&text->point) != NULL))
3305 tmp = MARK_LIST_PTR (&text->point);
3306 prop = MARK_CURRENT_PROPERTY(&text->point);
3308 MARK_LIST_PTR (&text->point) = MARK_PREV_LIST_PTR (&text->point);
3309 MARK_CURRENT_PROPERTY(&text->point)->length += 1;
3310 MARK_NEXT_LIST_PTR(&text->point) = NULL;
3312 text->point.offset = MARK_CURRENT_PROPERTY(&text->point)->length - 1;
3314 if (GTK_WIDGET_REALIZED (text))
3315 unrealize_property (text, prop);
3317 destroy_text_property (prop);
3318 g_list_free_1 (tmp);
3323 init_properties (GtkText *text)
3325 if (!text->text_properties)
3327 text->text_properties = g_list_alloc();
3328 text->text_properties->next = NULL;
3329 text->text_properties->prev = NULL;
3330 text->text_properties->data = new_text_property (text, NULL, NULL, NULL, 1);
3331 text->text_properties_end = text->text_properties;
3333 SET_PROPERTY_MARK (&text->point, text->text_properties, 0);
3335 text->point.index = 0;
3340 /**********************************************************************/
3341 /* Property Movement */
3342 /**********************************************************************/
3345 move_mark_n (GtkPropertyMark* mark, gint n)
3348 advance_mark_n(mark, n);
3350 decrement_mark_n(mark, -n);
3354 advance_mark (GtkPropertyMark* mark)
3356 TextProperty* prop = MARK_CURRENT_PROPERTY (mark);
3360 if (prop->length > mark->offset + 1)
3364 mark->property = MARK_NEXT_LIST_PTR (mark);
3370 advance_mark_n (GtkPropertyMark* mark, gint n)
3377 i = 0; /* otherwise it migth not be init. */
3378 prop = MARK_CURRENT_PROPERTY(mark);
3380 if ((prop->length - mark->offset - 1) < n) { /* if we need to change prop. */
3381 /* to make it easier */
3382 n += (mark->offset);
3383 mark->index -= mark->offset;
3385 /* first we take seven-mile-leaps to get to the right text
3387 while ((n-i) > prop->length - 1) {
3389 mark->index += prop->length;
3390 mark->property = MARK_NEXT_LIST_PTR (mark);
3391 prop = MARK_CURRENT_PROPERTY (mark);
3395 /* and then the rest */
3396 mark->index += n - i;
3397 mark->offset += n - i;
3401 decrement_mark (GtkPropertyMark* mark)
3405 if (mark->offset > 0)
3409 mark->property = MARK_PREV_LIST_PTR (mark);
3410 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3415 decrement_mark_n (GtkPropertyMark* mark, gint n)
3419 while (mark->offset < n) {
3420 /* jump to end of prev */
3421 n -= mark->offset + 1;
3422 mark->index -= mark->offset + 1;
3423 mark->property = MARK_PREV_LIST_PTR (mark);
3424 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3432 static GtkPropertyMark
3433 find_mark (GtkText* text, guint mark_position)
3435 return find_mark_near (text, mark_position, &text->point);
3439 * You can also start from the end, what a drag.
3441 static GtkPropertyMark
3442 find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near)
3447 GtkPropertyMark mark;
3450 diffa = mark_position + 1;
3452 diffa = mark_position - near->index;
3454 diffb = mark_position;
3466 mark.property = text->text_properties;
3470 move_mark_n (&mark, mark_position - mark.index);
3475 /* This routine must be called with scroll == FALSE, only when
3476 * point is at least partially on screen
3480 find_line_containing_point (GtkText* text, guint point,
3486 text->current_line = NULL;
3490 /* Scroll backwards until the point is on screen
3492 while (CACHE_DATA(text->line_start_cache).start.index > point)
3493 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache)));
3495 /* Now additionally try to make sure that the point is fully on screen
3499 while (text->first_cut_pixels != 0 &&
3500 text->line_start_cache->next &&
3501 CACHE_DATA(text->line_start_cache->next).start.index > point)
3502 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache->next)));
3505 gdk_window_get_size (text->text_area, NULL, &height);
3507 for (cache = text->line_start_cache; cache; cache = cache->next)
3511 if (CACHE_DATA(cache).end.index >= point ||
3512 LAST_INDEX(text, CACHE_DATA(cache).end))
3514 text->current_line = cache; /* LOOK HERE, this proc has an
3515 * important side effect. */
3519 TEXT_SHOW_LINE (text, cache, "cache");
3521 if (cache->next == NULL)
3522 fetch_lines_forward (text, 1);
3526 lph = pixel_height_of (text, cache->next);
3528 /* Scroll the bottom of the line is on screen, or until
3529 * the line is the first onscreen line.
3531 while (cache->next != text->line_start_cache && lph > height)
3533 TEXT_SHOW_LINE (text, cache, "cache");
3534 TEXT_SHOW_LINE (text, cache->next, "cache->next");
3535 scroll_int (text, LINE_HEIGHT(CACHE_DATA(cache->next)));
3536 lph = pixel_height_of (text, cache->next);
3541 g_assert_not_reached (); /* Must set text->current_line here */
3545 pixel_height_of (GtkText* text, GList* cache_line)
3547 gint pixels = - text->first_cut_pixels;
3548 GList *cache = text->line_start_cache;
3551 pixels += LINE_HEIGHT (CACHE_DATA(cache));
3553 if (cache->data == cache_line->data)
3556 cache = cache->next;
3562 /**********************************************************************/
3563 /* Search and Placement */
3564 /**********************************************************************/
3567 find_char_width (GtkText* text, const GtkPropertyMark *mark, const TabStopMark *tab_mark)
3570 gint16* char_widths;
3572 if (LAST_INDEX (text, *mark))
3575 ch = GTK_TEXT_INDEX (text, mark->index);
3576 char_widths = MARK_CURRENT_TEXT_FONT (text, mark)->char_widths;
3580 return tab_mark->to_next_tab * char_widths[' '];
3584 return char_widths[ch];
3588 return gdk_char_width_wc(MARK_CURRENT_TEXT_FONT(text, mark)->gdk_font, ch);
3593 advance_tab_mark (GtkText* text, TabStopMark* tab_mark, GdkWChar ch)
3595 if (tab_mark->to_next_tab == 1 || ch == '\t')
3597 if (tab_mark->tab_stops->next)
3599 tab_mark->tab_stops = tab_mark->tab_stops->next;
3600 tab_mark->to_next_tab = (gulong) tab_mark->tab_stops->data;
3604 tab_mark->to_next_tab = text->default_tab_width;
3609 tab_mark->to_next_tab -= 1;
3614 advance_tab_mark_n (GtkText* text, TabStopMark* tab_mark, gint n)
3618 advance_tab_mark (text, tab_mark, 0);
3622 find_cursor_at_line (GtkText* text, const LineParams* start_line, gint pixel_height)
3626 GtkPropertyMark mark = start_line->start;
3627 TabStopMark tab_mark = start_line->tab_cont.tab_start;
3628 gint pixel_width = LINE_START_PIXEL (*start_line);
3630 while (mark.index < text->cursor_mark.index)
3632 pixel_width += find_char_width (text, &mark, &tab_mark);
3634 advance_tab_mark (text, &tab_mark, GTK_TEXT_INDEX(text, mark.index));
3635 advance_mark (&mark);
3638 text->cursor_pos_x = pixel_width;
3639 text->cursor_pos_y = pixel_height;
3640 text->cursor_char_offset = start_line->font_descent;
3641 text->cursor_mark = mark;
3643 ch = LAST_INDEX (text, mark) ?
3644 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3646 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
3647 text->cursor_char = 0;
3649 text->cursor_char = ch;
3653 find_cursor (GtkText* text, gboolean scroll)
3655 if (GTK_WIDGET_REALIZED (text))
3657 find_line_containing_point (text, text->cursor_mark.index, scroll);
3659 if (text->current_line)
3660 find_cursor_at_line (text,
3661 &CACHE_DATA(text->current_line),
3662 pixel_height_of(text, text->current_line));
3665 GTK_OLD_EDITABLE (text)->current_pos = text->cursor_mark.index;
3669 find_mouse_cursor_at_line (GtkText *text, const LineParams* lp,
3670 guint line_pixel_height,
3673 GtkPropertyMark mark = lp->start;
3674 TabStopMark tab_mark = lp->tab_cont.tab_start;
3676 gint char_width = find_char_width(text, &mark, &tab_mark);
3677 gint pixel_width = LINE_START_PIXEL (*lp) + (char_width+1)/2;
3679 text->cursor_pos_y = line_pixel_height;
3683 GdkWChar ch = LAST_INDEX (text, mark) ?
3684 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3686 if (button_x < pixel_width || mark.index == lp->end.index)
3688 text->cursor_pos_x = pixel_width - (char_width+1)/2;
3689 text->cursor_mark = mark;
3690 text->cursor_char_offset = lp->font_descent;
3692 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
3693 text->cursor_char = 0;
3695 text->cursor_char = ch;
3700 advance_tab_mark (text, &tab_mark, ch);
3701 advance_mark (&mark);
3703 pixel_width += char_width/2;
3705 char_width = find_char_width (text, &mark, &tab_mark);
3707 pixel_width += (char_width+1)/2;
3712 find_mouse_cursor (GtkText* text, gint x, gint y)
3715 GList* cache = text->line_start_cache;
3719 pixel_height = - text->first_cut_pixels;
3721 for (; cache; cache = cache->next)
3723 pixel_height += LINE_HEIGHT(CACHE_DATA(cache));
3725 if (y < pixel_height || !cache->next)
3727 find_mouse_cursor_at_line (text, &CACHE_DATA(cache), pixel_height, x);
3729 find_cursor (text, FALSE);
3736 /**********************************************************************/
3738 /**********************************************************************/
3741 free_cache (GtkText* text)
3743 GList* cache = text->line_start_cache;
3748 cache = cache->prev;
3750 text->line_start_cache = cache;
3753 for (; cache; cache = cache->next)
3754 g_slice_free (LineParams, cache->data);
3756 g_list_free (text->line_start_cache);
3758 text->line_start_cache = NULL;
3762 remove_cache_line (GtkText* text, GList* member)
3769 if (member == text->line_start_cache)
3770 text->line_start_cache = text->line_start_cache->next;
3773 member->prev->next = member->next;
3776 member->next->prev = member->prev;
3778 list = member->next;
3780 g_slice_free (LineParams, member->data);
3781 g_list_free_1 (member);
3786 /**********************************************************************/
3788 /**********************************************************************/
3791 move_cursor_buffer_ver (GtkText *text, int dir)
3793 undraw_cursor (text, FALSE);
3797 scroll_int (text, text->vadj->upper);
3798 text->cursor_mark = find_this_line_start_mark (text,
3800 &text->cursor_mark);
3804 scroll_int (text, - text->vadj->value);
3805 text->cursor_mark = find_this_line_start_mark (text,
3807 &text->cursor_mark);
3810 find_cursor (text, TRUE);
3811 draw_cursor (text, FALSE);
3815 move_cursor_page_ver (GtkText *text, int dir)
3817 scroll_int (text, dir * text->vadj->page_increment);
3821 move_cursor_ver (GtkText *text, int count)
3824 GtkPropertyMark mark;
3827 mark = find_this_line_start_mark (text, text->cursor_mark.index, &text->cursor_mark);
3828 offset = text->cursor_mark.index - mark.index;
3830 if (offset > text->cursor_virtual_x)
3831 text->cursor_virtual_x = offset;
3835 if (mark.index == 0)
3838 decrement_mark (&mark);
3839 mark = find_this_line_start_mark (text, mark.index, &mark);
3843 mark = text->cursor_mark;
3845 while (!LAST_INDEX(text, mark) && GTK_TEXT_INDEX(text, mark.index) != LINE_DELIM)
3846 advance_mark (&mark);
3848 if (LAST_INDEX(text, mark))
3851 advance_mark (&mark);
3854 for (i=0; i < text->cursor_virtual_x; i += 1, advance_mark(&mark))
3855 if (LAST_INDEX(text, mark) ||
3856 GTK_TEXT_INDEX(text, mark.index) == LINE_DELIM)
3859 undraw_cursor (text, FALSE);
3861 text->cursor_mark = mark;
3863 find_cursor (text, TRUE);
3865 draw_cursor (text, FALSE);
3869 move_cursor_hor (GtkText *text, int count)
3871 /* count should be +-1. */
3872 if ( (count > 0 && text->cursor_mark.index + count > TEXT_LENGTH(text)) ||
3873 (count < 0 && text->cursor_mark.index < (- count)) ||
3877 text->cursor_virtual_x = 0;
3879 undraw_cursor (text, FALSE);
3881 move_mark_n (&text->cursor_mark, count);
3883 find_cursor (text, TRUE);
3885 draw_cursor (text, FALSE);
3889 gtk_text_move_cursor (GtkOldEditable *old_editable,
3896 move_cursor_hor (GTK_TEXT (old_editable), 1);
3901 move_cursor_hor (GTK_TEXT (old_editable), -1);
3907 move_cursor_ver (GTK_TEXT (old_editable), 1);
3912 move_cursor_ver (GTK_TEXT (old_editable), -1);
3917 gtk_text_move_forward_character (GtkText *text)
3919 move_cursor_hor (text, 1);
3923 gtk_text_move_backward_character (GtkText *text)
3925 move_cursor_hor (text, -1);
3929 gtk_text_move_next_line (GtkText *text)
3931 move_cursor_ver (text, 1);
3935 gtk_text_move_previous_line (GtkText *text)
3937 move_cursor_ver (text, -1);
3941 gtk_text_move_word (GtkOldEditable *old_editable,
3947 gtk_text_move_forward_word (GTK_TEXT (old_editable));
3952 gtk_text_move_backward_word (GTK_TEXT (old_editable));
3957 gtk_text_move_forward_word (GtkText *text)
3959 text->cursor_virtual_x = 0;
3961 undraw_cursor (text, FALSE);
3963 if (text->use_wchar)
3965 while (!LAST_INDEX (text, text->cursor_mark) &&
3966 !gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3967 advance_mark (&text->cursor_mark);
3969 while (!LAST_INDEX (text, text->cursor_mark) &&
3970 gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3971 advance_mark (&text->cursor_mark);
3975 while (!LAST_INDEX (text, text->cursor_mark) &&
3976 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3977 advance_mark (&text->cursor_mark);
3979 while (!LAST_INDEX (text, text->cursor_mark) &&
3980 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3981 advance_mark (&text->cursor_mark);
3984 find_cursor (text, TRUE);
3985 draw_cursor (text, FALSE);
3989 gtk_text_move_backward_word (GtkText *text)
3991 text->cursor_virtual_x = 0;
3993 undraw_cursor (text, FALSE);
3995 if (text->use_wchar)
3997 while ((text->cursor_mark.index > 0) &&
3998 !gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
3999 decrement_mark (&text->cursor_mark);
4001 while ((text->cursor_mark.index > 0) &&
4002 gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4003 decrement_mark (&text->cursor_mark);
4007 while ((text->cursor_mark.index > 0) &&
4008 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4009 decrement_mark (&text->cursor_mark);
4011 while ((text->cursor_mark.index > 0) &&
4012 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4013 decrement_mark (&text->cursor_mark);
4016 find_cursor (text, TRUE);
4017 draw_cursor (text, FALSE);
4021 gtk_text_move_page (GtkOldEditable *old_editable,
4026 scroll_int (GTK_TEXT (old_editable),
4027 y * GTK_TEXT(old_editable)->vadj->page_increment);
4031 gtk_text_move_to_row (GtkOldEditable *old_editable,
4037 gtk_text_move_to_column (GtkOldEditable *old_editable,
4042 text = GTK_TEXT (old_editable);
4044 text->cursor_virtual_x = 0; /* FIXME */
4046 undraw_cursor (text, FALSE);
4048 /* Move to the beginning of the line */
4049 while ((text->cursor_mark.index > 0) &&
4050 (GTK_TEXT_INDEX (text, text->cursor_mark.index - 1) != LINE_DELIM))
4051 decrement_mark (&text->cursor_mark);
4053 while (!LAST_INDEX (text, text->cursor_mark) &&
4054 (GTK_TEXT_INDEX (text, text->cursor_mark.index) != LINE_DELIM))
4058 else if (column == 0)
4061 advance_mark (&text->cursor_mark);
4064 find_cursor (text, TRUE);
4065 draw_cursor (text, FALSE);
4069 gtk_text_move_beginning_of_line (GtkText *text)
4071 gtk_text_move_to_column (GTK_OLD_EDITABLE (text), 0);
4076 gtk_text_move_end_of_line (GtkText *text)
4078 gtk_text_move_to_column (GTK_OLD_EDITABLE (text), -1);
4082 gtk_text_kill_char (GtkOldEditable *old_editable,
4087 text = GTK_TEXT (old_editable);
4089 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
4090 gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
4095 if (text->point.index + 1 <= TEXT_LENGTH (text))
4096 gtk_editable_delete_text (GTK_EDITABLE (old_editable), text->point.index, text->point.index + 1);
4100 if (text->point.index > 0)
4101 gtk_editable_delete_text (GTK_EDITABLE (old_editable), text->point.index - 1, text->point.index);
4107 gtk_text_delete_forward_character (GtkText *text)
4109 gtk_text_kill_char (GTK_OLD_EDITABLE (text), 1);
4113 gtk_text_delete_backward_character (GtkText *text)
4115 gtk_text_kill_char (GTK_OLD_EDITABLE (text), -1);
4119 gtk_text_kill_word (GtkOldEditable *old_editable,
4122 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
4123 gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
4126 gint old_pos = old_editable->current_pos;
4129 gtk_text_move_word (old_editable, 1);
4130 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_pos, old_editable->current_pos);
4134 gtk_text_move_word (old_editable, -1);
4135 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_editable->current_pos, old_pos);
4141 gtk_text_delete_forward_word (GtkText *text)
4143 gtk_text_kill_word (GTK_OLD_EDITABLE (text), 1);
4147 gtk_text_delete_backward_word (GtkText *text)
4149 gtk_text_kill_word (GTK_OLD_EDITABLE (text), -1);
4153 gtk_text_kill_line (GtkOldEditable *old_editable,
4156 gint old_pos = old_editable->current_pos;
4159 gtk_text_move_to_column (old_editable, -1);
4160 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_pos, old_editable->current_pos);
4164 gtk_text_move_to_column (old_editable, 0);
4165 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_editable->current_pos, old_pos);
4170 gtk_text_delete_line (GtkText *text)
4172 gtk_text_move_to_column (GTK_OLD_EDITABLE (text), 0);
4173 gtk_text_kill_line (GTK_OLD_EDITABLE (text), 1);
4177 gtk_text_delete_to_line_end (GtkText *text)
4179 gtk_text_kill_line (GTK_OLD_EDITABLE (text), 1);
4183 gtk_text_select_word (GtkText *text, guint32 time)
4188 GtkOldEditable *old_editable;
4189 old_editable = GTK_OLD_EDITABLE (text);
4191 gtk_text_move_backward_word (text);
4192 start_pos = text->cursor_mark.index;
4194 gtk_text_move_forward_word (text);
4195 end_pos = text->cursor_mark.index;
4197 old_editable->has_selection = TRUE;
4198 gtk_text_set_selection (old_editable, start_pos, end_pos);
4199 gtk_old_editable_claim_selection (old_editable, start_pos != end_pos, time);
4203 gtk_text_select_line (GtkText *text, guint32 time)
4208 GtkOldEditable *old_editable;
4209 old_editable = GTK_OLD_EDITABLE (text);
4211 gtk_text_move_beginning_of_line (text);
4212 start_pos = text->cursor_mark.index;
4214 gtk_text_move_end_of_line (text);
4215 gtk_text_move_forward_character (text);
4216 end_pos = text->cursor_mark.index;
4218 old_editable->has_selection = TRUE;
4219 gtk_text_set_selection (old_editable, start_pos, end_pos);
4220 gtk_old_editable_claim_selection (old_editable, start_pos != end_pos, time);
4223 /**********************************************************************/
4225 /**********************************************************************/
4228 adjust_adj (GtkText* text, GtkAdjustment* adj)
4232 gdk_window_get_size (text->text_area, NULL, &height);
4234 adj->step_increment = MIN (adj->upper, SCROLL_PIXELS);
4235 adj->page_increment = MIN (adj->upper, height - KEY_SCROLL_PIXELS);
4236 adj->page_size = MIN (adj->upper, height);
4237 adj->value = MIN (adj->value, adj->upper - adj->page_size);
4238 adj->value = MAX (adj->value, 0.0);
4240 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
4244 set_vertical_scroll_iterator (GtkText* text, LineParams* lp, void* data)
4246 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4248 if ((text->first_line_start_index >= lp->start.index) &&
4249 (text->first_line_start_index <= lp->end.index))
4251 svdata->mark = lp->start;
4253 if (text->first_line_start_index == lp->start.index)
4255 text->first_onscreen_ver_pixel = svdata->pixel_height + text->first_cut_pixels;
4259 text->first_onscreen_ver_pixel = svdata->pixel_height;
4260 text->first_cut_pixels = 0;
4263 text->vadj->value = text->first_onscreen_ver_pixel;
4266 svdata->pixel_height += LINE_HEIGHT (*lp);
4272 set_vertical_scroll_find_iterator (GtkText* text, LineParams* lp, void* data)
4274 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4277 if (svdata->pixel_height <= (gint) text->vadj->value &&
4278 svdata->pixel_height + LINE_HEIGHT(*lp) > (gint) text->vadj->value)
4280 svdata->mark = lp->start;
4282 text->first_cut_pixels = (gint)text->vadj->value - svdata->pixel_height;
4283 text->first_onscreen_ver_pixel = svdata->pixel_height;
4284 text->first_line_start_index = lp->start.index;
4290 svdata->pixel_height += LINE_HEIGHT (*lp);
4298 static GtkPropertyMark
4299 set_vertical_scroll (GtkText* text)
4301 GtkPropertyMark mark = find_mark (text, 0);
4302 SetVerticalScrollData data;
4306 data.pixel_height = 0;
4307 line_params_iterate (text, &mark, NULL, FALSE, &data, set_vertical_scroll_iterator);
4309 text->vadj->upper = data.pixel_height;
4310 orig_value = (gint) text->vadj->value;
4312 gdk_window_get_size (text->text_area, NULL, &height);
4314 text->vadj->step_increment = MIN (text->vadj->upper, SCROLL_PIXELS);
4315 text->vadj->page_increment = MIN (text->vadj->upper, height - KEY_SCROLL_PIXELS);
4316 text->vadj->page_size = MIN (text->vadj->upper, height);
4317 text->vadj->value = MIN (text->vadj->value, text->vadj->upper - text->vadj->page_size);
4318 text->vadj->value = MAX (text->vadj->value, 0.0);
4320 text->last_ver_value = (gint)text->vadj->value;
4322 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "changed");
4324 if (text->vadj->value != orig_value)
4326 /* We got clipped, and don't really know which line to put first. */
4327 data.pixel_height = 0;
4328 data.last_didnt_wrap = TRUE;
4330 line_params_iterate (text, &mark, NULL,
4332 set_vertical_scroll_find_iterator);
4339 scroll_int (GtkText* text, gint diff)
4343 text->vadj->value += diff;
4345 upper = text->vadj->upper - text->vadj->page_size;
4346 text->vadj->value = MIN (text->vadj->value, upper);
4347 text->vadj->value = MAX (text->vadj->value, 0.0);
4349 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "value_changed");
4353 process_exposes (GtkText *text)
4357 /* Make sure graphics expose events are processed before scrolling
4360 while ((event = gdk_event_get_graphics_expose (text->text_area)) != NULL)
4362 gtk_widget_send_expose (GTK_WIDGET (text), event);
4363 if (event->expose.count == 0)
4365 gdk_event_free (event);
4368 gdk_event_free (event);
4372 static gint last_visible_line_height (GtkText* text)
4374 GList *cache = text->line_start_cache;
4377 gdk_window_get_size (text->text_area, NULL, &height);
4379 for (; cache->next; cache = cache->next)
4380 if (pixel_height_of(text, cache->next) > height)
4384 return pixel_height_of(text, cache) - 1;
4389 static gint first_visible_line_height (GtkText* text)
4391 if (text->first_cut_pixels)
4392 return pixel_height_of(text, text->line_start_cache) + 1;
4398 scroll_down (GtkText* text, gint diff0)
4404 text->first_onscreen_ver_pixel += diff0;
4408 g_assert (text->line_start_cache);
4410 if (text->first_cut_pixels < LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1)
4412 text->first_cut_pixels += 1;
4416 text->first_cut_pixels = 0;
4418 text->line_start_cache = text->line_start_cache->next;
4420 text->first_line_start_index =
4421 CACHE_DATA(text->line_start_cache).start.index;
4423 if (!text->line_start_cache->next)
4424 fetch_lines_forward (text, 1);
4430 gdk_window_get_size (text->text_area, &width, &height);
4431 if (height > real_diff)
4432 gdk_draw_pixmap (text->text_area,
4440 height - real_diff);
4443 rect.y = MAX (0, height - real_diff);
4445 rect.height = MIN (height, real_diff);
4447 expose_text (text, &rect, FALSE);
4448 gtk_text_draw_focus ( (GtkWidget *) text);
4450 if (text->current_line)
4454 text->cursor_pos_y -= real_diff;
4455 cursor_min = drawn_cursor_min(text);
4458 find_mouse_cursor (text, text->cursor_pos_x,
4459 first_visible_line_height (text));
4462 if (height > real_diff)
4463 process_exposes (text);
4467 scroll_up (GtkText* text, gint diff0)
4473 text->first_onscreen_ver_pixel += diff0;
4477 g_assert (text->line_start_cache);
4479 if (text->first_cut_pixels > 0)
4481 text->first_cut_pixels -= 1;
4485 if (!text->line_start_cache->prev)
4486 fetch_lines_backward (text);
4488 text->line_start_cache = text->line_start_cache->prev;
4490 text->first_line_start_index =
4491 CACHE_DATA(text->line_start_cache).start.index;
4493 text->first_cut_pixels = LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1;
4499 gdk_window_get_size (text->text_area, &width, &height);
4500 if (height > real_diff)
4501 gdk_draw_pixmap (text->text_area,
4509 height - real_diff);
4514 rect.height = MIN (height, real_diff);
4516 expose_text (text, &rect, FALSE);
4517 gtk_text_draw_focus ( (GtkWidget *) text);
4519 if (text->current_line)
4524 text->cursor_pos_y += real_diff;
4525 cursor_max = drawn_cursor_max(text);
4526 gdk_window_get_size (text->text_area, NULL, &height);
4528 if (cursor_max >= height)
4529 find_mouse_cursor (text, text->cursor_pos_x,
4530 last_visible_line_height (text));
4533 if (height > real_diff)
4534 process_exposes (text);
4537 /**********************************************************************/
4539 /**********************************************************************/
4541 /* Assumes mark starts a line. Calculates the height, width, and
4542 * displayable character count of a single DISPLAYABLE line. That
4543 * means that in line-wrap mode, this does may not compute the
4544 * properties of an entire line. */
4546 find_line_params (GtkText* text,
4547 const GtkPropertyMark* mark,
4548 const PrevTabCont *tab_cont,
4549 PrevTabCont *next_cont)
4552 TabStopMark tab_mark = tab_cont->tab_start;
4553 guint max_display_pixels;
4558 gdk_window_get_size (text->text_area, (gint*) &max_display_pixels, NULL);
4559 max_display_pixels -= LINE_WRAP_ROOM;
4562 lp.tab_cont = *tab_cont;
4565 lp.pixel_width = tab_cont->pixel_offset;
4566 lp.displayable_chars = 0;
4568 lp.font_descent = 0;
4570 init_tab_cont (text, next_cont);
4572 while (!LAST_INDEX(text, lp.end))
4574 g_assert (lp.end.property);
4576 ch = GTK_TEXT_INDEX (text, lp.end.index);
4577 font = MARK_CURRENT_FONT (text, &lp.end);
4579 if (ch == LINE_DELIM)
4581 /* Newline doesn't count in computation of line height, even
4582 * if its in a bigger font than the rest of the line. Unless,
4583 * of course, there are no other characters. */
4585 if (!lp.font_ascent && !lp.font_descent)
4587 lp.font_ascent = font->ascent;
4588 lp.font_descent = font->descent;
4591 lp.tab_cont_next = *next_cont;
4596 ch_width = find_char_width (text, &lp.end, &tab_mark);
4598 if ((ch_width + lp.pixel_width > max_display_pixels) &&
4599 (lp.end.index > lp.start.index))
4603 if (text->line_wrap)
4605 next_cont->tab_start = tab_mark;
4606 next_cont->pixel_offset = 0;
4610 /* Here's the tough case, a tab is wrapping. */
4611 gint pixels_avail = max_display_pixels - lp.pixel_width;
4612 gint space_width = MARK_CURRENT_TEXT_FONT(text, &lp.end)->char_widths[' '];
4613 gint spaces_avail = pixels_avail / space_width;
4615 if (spaces_avail == 0)
4617 decrement_mark (&lp.end);
4621 advance_tab_mark (text, &next_cont->tab_start, '\t');
4622 next_cont->pixel_offset = space_width * (tab_mark.to_next_tab -
4624 lp.displayable_chars += 1;
4629 if (text->word_wrap)
4631 GtkPropertyMark saved_mark = lp.end;
4632 guint saved_characters = lp.displayable_chars;
4634 lp.displayable_chars += 1;
4636 if (text->use_wchar)
4638 while (!gdk_iswspace (GTK_TEXT_INDEX (text, lp.end.index)) &&
4639 (lp.end.index > lp.start.index))
4641 decrement_mark (&lp.end);
4642 lp.displayable_chars -= 1;
4647 while (!isspace(GTK_TEXT_INDEX (text, lp.end.index)) &&
4648 (lp.end.index > lp.start.index))
4650 decrement_mark (&lp.end);
4651 lp.displayable_chars -= 1;
4655 /* If whole line is one word, revert to char wrapping */
4656 if (lp.end.index == lp.start.index)
4658 lp.end = saved_mark;
4659 lp.displayable_chars = saved_characters;
4660 decrement_mark (&lp.end);
4665 /* Don't include this character, it will wrap. */
4666 decrement_mark (&lp.end);
4670 lp.tab_cont_next = *next_cont;
4677 lp.displayable_chars += 1;
4680 lp.font_ascent = MAX (font->ascent, lp.font_ascent);
4681 lp.font_descent = MAX (font->descent, lp.font_descent);
4682 lp.pixel_width += ch_width;
4684 advance_mark(&lp.end);
4685 advance_tab_mark (text, &tab_mark, ch);
4688 if (LAST_INDEX(text, lp.start))
4690 /* Special case, empty last line. */
4691 font = MARK_CURRENT_FONT (text, &lp.end);
4693 lp.font_ascent = font->ascent;
4694 lp.font_descent = font->descent;
4697 lp.tab_cont_next = *next_cont;
4703 expand_scratch_buffer (GtkText* text, guint len)
4705 if (len >= text->scratch_buffer_len)
4709 while (i <= len && i < MIN_GAP_SIZE) i <<= 1;
4711 if (text->use_wchar)
4713 if (text->scratch_buffer.wc)
4714 text->scratch_buffer.wc = g_new (GdkWChar, i);
4716 text->scratch_buffer.wc = g_realloc (text->scratch_buffer.wc,
4717 i*sizeof (GdkWChar));
4721 if (text->scratch_buffer.ch)
4722 text->scratch_buffer.ch = g_new (guchar, i);
4724 text->scratch_buffer.ch = g_realloc (text->scratch_buffer.ch, i);
4727 text->scratch_buffer_len = i;
4731 /* Side effect: modifies text->gc
4734 draw_bg_rect (GtkText* text, GtkPropertyMark *mark,
4735 gint x, gint y, gint width, gint height,
4736 gboolean already_cleared)
4738 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
4740 if ((mark->index >= MIN(old_editable->selection_start_pos, old_editable->selection_end_pos) &&
4741 mark->index < MAX(old_editable->selection_start_pos, old_editable->selection_end_pos)))
4743 gtk_paint_flat_box(GTK_WIDGET(text)->style, text->text_area,
4744 old_editable->has_selection ?
4745 GTK_STATE_SELECTED : GTK_STATE_ACTIVE,
4747 NULL, GTK_WIDGET(text), "text",
4748 x, y, width, height);
4750 else if (!gdk_color_equal(MARK_CURRENT_BACK (text, mark),
4751 >K_WIDGET(text)->style->base[GTK_WIDGET_STATE (text)]))
4753 gdk_gc_set_foreground (text->gc, MARK_CURRENT_BACK (text, mark));
4755 gdk_draw_rectangle (text->text_area,
4757 TRUE, x, y, width, height);
4759 else if (GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL])
4766 rect.height = height;
4768 clear_area (text, &rect);
4770 else if (!already_cleared)
4771 gdk_window_clear_area (text->text_area, x, y, width, height);
4775 draw_line (GtkText* text,
4776 gint pixel_start_height,
4779 GdkGCValues gc_values;
4782 guint running_offset = lp->tab_cont.pixel_offset;
4783 union { GdkWChar *wc; guchar *ch; } buffer;
4786 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
4788 guint selection_start_pos = MIN (old_editable->selection_start_pos, old_editable->selection_end_pos);
4789 guint selection_end_pos = MAX (old_editable->selection_start_pos, old_editable->selection_end_pos);
4791 GtkPropertyMark mark = lp->start;
4792 TabStopMark tab_mark = lp->tab_cont.tab_start;
4793 gint pixel_height = pixel_start_height + lp->font_ascent;
4794 guint chars = lp->displayable_chars;
4796 /* First provide a contiguous segment of memory. This makes reading
4797 * the code below *much* easier, and only incurs the cost of copying
4798 * when the line being displayed spans the gap. */
4799 if (mark.index <= text->gap_position &&
4800 mark.index + chars > text->gap_position)
4802 expand_scratch_buffer (text, chars);
4804 if (text->use_wchar)
4806 for (i = 0; i < chars; i += 1)
4807 text->scratch_buffer.wc[i] = GTK_TEXT_INDEX(text, mark.index + i);
4808 buffer.wc = text->scratch_buffer.wc;
4812 for (i = 0; i < chars; i += 1)
4813 text->scratch_buffer.ch[i] = GTK_TEXT_INDEX(text, mark.index + i);
4814 buffer.ch = text->scratch_buffer.ch;
4819 if (text->use_wchar)
4821 if (mark.index >= text->gap_position)
4822 buffer.wc = text->text.wc + mark.index + text->gap_size;
4824 buffer.wc = text->text.wc + mark.index;
4828 if (mark.index >= text->gap_position)
4829 buffer.ch = text->text.ch + mark.index + text->gap_size;
4831 buffer.ch = text->text.ch + mark.index;
4836 if (running_offset > 0)
4838 draw_bg_rect (text, &mark, 0, pixel_start_height, running_offset,
4839 LINE_HEIGHT (*lp), TRUE);
4845 if ((text->use_wchar && buffer.wc[0] != '\t') ||
4846 (!text->use_wchar && buffer.ch[0] != '\t'))
4848 union { GdkWChar *wc; guchar *ch; } next_tab;
4853 if (text->use_wchar)
4854 for (i=0; i<chars; i++)
4856 if (buffer.wc[i] == '\t')
4858 next_tab.wc = buffer.wc + i;
4863 next_tab.ch = memchr (buffer.ch, '\t', chars);
4865 len = MIN (MARK_CURRENT_PROPERTY (&mark)->length - mark.offset, chars);
4867 if (text->use_wchar)
4870 len = MIN (len, next_tab.wc - buffer.wc);
4875 len = MIN (len, next_tab.ch - buffer.ch);
4878 if (mark.index < selection_start_pos)
4879 len = MIN (len, selection_start_pos - mark.index);
4880 else if (mark.index < selection_end_pos)
4881 len = MIN (len, selection_end_pos - mark.index);
4883 font = MARK_CURRENT_FONT (text, &mark);
4884 if (font->type == GDK_FONT_FONT)
4886 gdk_gc_set_font (text->gc, font);
4887 gdk_gc_get_values (text->gc, &gc_values);
4888 if (text->use_wchar)
4889 pixel_width = gdk_text_width_wc (gc_values.font,
4892 pixel_width = gdk_text_width (gc_values.font,
4897 if (text->use_wchar)
4898 pixel_width = gdk_text_width_wc (font, buffer.wc, len);
4900 pixel_width = gdk_text_width (font, buffer.ch, len);
4903 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4904 pixel_width, LINE_HEIGHT (*lp), TRUE);
4906 if ((mark.index >= selection_start_pos) &&
4907 (mark.index < selection_end_pos))
4909 if (old_editable->has_selection)
4910 fg_gc = GTK_WIDGET(text)->style->text_gc[GTK_STATE_SELECTED];
4912 fg_gc = GTK_WIDGET(text)->style->text_gc[GTK_STATE_ACTIVE];
4916 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &mark));
4920 if (text->use_wchar)
4921 gdk_draw_text_wc (text->text_area, MARK_CURRENT_FONT (text, &mark),
4928 gdk_draw_text (text->text_area, MARK_CURRENT_FONT (text, &mark),
4935 running_offset += pixel_width;
4937 advance_tab_mark_n (text, &tab_mark, len);
4941 gint pixels_remaining;
4947 gdk_window_get_size (text->text_area, &pixels_remaining, NULL);
4948 pixels_remaining -= (LINE_WRAP_ROOM + running_offset);
4950 space_width = MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
4952 spaces_avail = pixels_remaining / space_width;
4953 spaces_avail = MIN (spaces_avail, tab_mark.to_next_tab);
4955 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4956 spaces_avail * space_width, LINE_HEIGHT (*lp), TRUE);
4958 running_offset += tab_mark.to_next_tab *
4959 MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
4961 advance_tab_mark (text, &tab_mark, '\t');
4964 advance_mark_n (&mark, len);
4965 if (text->use_wchar)
4974 draw_line_wrap (GtkText* text, guint height /* baseline height */)
4981 if (text->line_wrap)
4983 bitmap = text->line_wrap_bitmap;
4984 bitmap_width = line_wrap_width;
4985 bitmap_height = line_wrap_height;
4989 bitmap = text->line_arrow_bitmap;
4990 bitmap_width = line_arrow_width;
4991 bitmap_height = line_arrow_height;
4994 gdk_window_get_size (text->text_area, &width, NULL);
4995 width -= LINE_WRAP_ROOM;
4997 gdk_gc_set_stipple (text->gc,
5000 gdk_gc_set_fill (text->gc, GDK_STIPPLED);
5002 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5004 gdk_gc_set_ts_origin (text->gc,
5006 height - bitmap_height - 1);
5008 gdk_draw_rectangle (text->text_area,
5012 height - bitmap_height - 1 /* one pixel above the baseline. */,
5016 gdk_gc_set_ts_origin (text->gc, 0, 0);
5018 gdk_gc_set_fill (text->gc, GDK_SOLID);
5022 undraw_cursor (GtkText* text, gint absolute)
5024 GtkOldEditable *old_editable = (GtkOldEditable *) text;
5026 TDEBUG (("in undraw_cursor\n"));
5029 text->cursor_drawn_level = 0;
5031 if ((text->cursor_drawn_level ++ == 0) &&
5032 (old_editable->selection_start_pos == old_editable->selection_end_pos) &&
5033 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5037 g_assert(text->cursor_mark.property);
5039 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5041 draw_bg_rect (text, &text->cursor_mark,
5043 text->cursor_pos_y - text->cursor_char_offset - font->ascent,
5044 1, font->ascent + 1, FALSE);
5046 if (text->cursor_char)
5048 if (font->type == GDK_FONT_FONT)
5049 gdk_gc_set_font (text->gc, font);
5051 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &text->cursor_mark));
5053 gdk_draw_text_wc (text->text_area, font,
5056 text->cursor_pos_y - text->cursor_char_offset,
5064 drawn_cursor_min (GtkText* text)
5068 g_assert(text->cursor_mark.property);
5070 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5072 return text->cursor_pos_y - text->cursor_char_offset - font->ascent;
5076 drawn_cursor_max (GtkText* text)
5078 g_assert(text->cursor_mark.property);
5080 return text->cursor_pos_y - text->cursor_char_offset;
5084 draw_cursor (GtkText* text, gint absolute)
5086 GtkOldEditable *old_editable = (GtkOldEditable *)text;
5088 TDEBUG (("in draw_cursor\n"));
5091 text->cursor_drawn_level = 1;
5093 if ((--text->cursor_drawn_level == 0) &&
5094 old_editable->editable &&
5095 (old_editable->selection_start_pos == old_editable->selection_end_pos) &&
5096 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5100 g_assert (text->cursor_mark.property);
5102 font = MARK_CURRENT_FONT (text, &text->cursor_mark);
5104 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5106 gdk_draw_line (text->text_area, text->gc, text->cursor_pos_x,
5107 text->cursor_pos_y - text->cursor_char_offset,
5109 text->cursor_pos_y - text->cursor_char_offset - font->ascent);
5114 create_bg_gc (GtkText *text)
5118 values.tile = GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL];
5119 values.fill = GDK_TILED;
5121 return gdk_gc_new_with_values (text->text_area, &values,
5122 GDK_GC_FILL | GDK_GC_TILE);
5126 clear_area (GtkText *text, GdkRectangle *area)
5128 GtkWidget *widget = GTK_WIDGET (text);
5134 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
5136 gdk_gc_set_ts_origin (text->bg_gc,
5137 (- text->first_onscreen_hor_pixel) % width,
5138 (- text->first_onscreen_ver_pixel) % height);
5140 gdk_draw_rectangle (text->text_area, text->bg_gc, TRUE,
5141 area->x, area->y, area->width, area->height);
5144 gdk_window_clear_area (text->text_area, area->x, area->y, area->width, area->height);
5148 expose_text (GtkText* text, GdkRectangle *area, gboolean cursor)
5150 GList *cache = text->line_start_cache;
5151 gint pixels = - text->first_cut_pixels;
5152 gint min_y = MAX (0, area->y);
5153 gint max_y = MAX (0, area->y + area->height);
5156 gdk_window_get_size (text->text_area, NULL, &height);
5157 max_y = MIN (max_y, height);
5159 TDEBUG (("in expose x=%d y=%d w=%d h=%d\n", area->x, area->y, area->width, area->height));
5161 clear_area (text, area);
5163 for (; pixels < height; cache = cache->next)
5165 if (pixels < max_y && (pixels + (gint)LINE_HEIGHT(CACHE_DATA(cache))) >= min_y)
5167 draw_line (text, pixels, &CACHE_DATA(cache));
5169 if (CACHE_DATA(cache).wraps)
5170 draw_line_wrap (text, pixels + CACHE_DATA(cache).font_ascent);
5173 if (cursor && GTK_WIDGET_HAS_FOCUS (text))
5175 if (CACHE_DATA(cache).start.index <= text->cursor_mark.index &&
5176 CACHE_DATA(cache).end.index >= text->cursor_mark.index)
5178 /* We undraw and draw the cursor here to get the drawn
5179 * level right ... FIXME - maybe the second parameter
5180 * of draw_cursor should work differently
5182 undraw_cursor (text, FALSE);
5183 draw_cursor (text, FALSE);
5187 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5191 fetch_lines_forward (text, 1);
5200 gtk_text_update_text (GtkOldEditable *old_editable,
5204 GtkText *text = GTK_TEXT (old_editable);
5206 GList *cache = text->line_start_cache;
5207 gint pixels = - text->first_cut_pixels;
5213 end_pos = TEXT_LENGTH (text);
5215 if (end_pos < start_pos)
5218 gdk_window_get_size (text->text_area, &width, &height);
5224 TDEBUG (("in expose span start=%d stop=%d\n", start_pos, end_pos));
5226 for (; pixels < height; cache = cache->next)
5228 if (CACHE_DATA(cache).start.index < end_pos)
5230 if (CACHE_DATA(cache).end.index >= start_pos)
5233 area.y = MAX(0,pixels);
5234 area.height = pixels + LINE_HEIGHT(CACHE_DATA(cache)) - area.y;
5240 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5244 fetch_lines_forward (text, 1);
5252 expose_text (text, &area, TRUE);
5256 recompute_geometry (GtkText* text)
5258 GtkPropertyMark mark, start_mark;
5265 mark = start_mark = set_vertical_scroll (text);
5267 /* We need a real start of a line when calling fetch_lines().
5268 * not the start of a wrapped line.
5270 while (mark.index > 0 &&
5271 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
5272 decrement_mark (&mark);
5274 gdk_window_get_size (text->text_area, &width, &height);
5276 /* Fetch an entire line, to make sure that we get all the text
5277 * we backed over above, in addition to enough text to fill up
5278 * the space vertically
5281 new_lines = fetch_lines (text,
5287 mark = CACHE_DATA (g_list_last (new_lines)).end;
5288 if (!LAST_INDEX (text, mark))
5290 advance_mark (&mark);
5292 new_lines = g_list_concat (new_lines,
5297 height + text->first_cut_pixels));
5300 /* Now work forward to the actual first onscreen line */
5302 while (CACHE_DATA (new_lines).start.index < start_mark.index)
5303 new_lines = new_lines->next;
5305 text->line_start_cache = new_lines;
5307 find_cursor (text, TRUE);
5310 /**********************************************************************/
5312 /**********************************************************************/
5315 gtk_text_set_selection (GtkOldEditable *old_editable,
5319 GtkText *text = GTK_TEXT (old_editable);
5321 guint start1, end1, start2, end2;
5324 end = TEXT_LENGTH (text);
5326 start1 = MIN(start,end);
5327 end1 = MAX(start,end);
5328 start2 = MIN(old_editable->selection_start_pos, old_editable->selection_end_pos);
5329 end2 = MAX(old_editable->selection_start_pos, old_editable->selection_end_pos);
5331 if (start2 < start1)
5335 tmp = start1; start1 = start2; start2 = tmp;
5336 tmp = end1; end1 = end2; end2 = tmp;
5339 undraw_cursor (text, FALSE);
5340 old_editable->selection_start_pos = start;
5341 old_editable->selection_end_pos = end;
5342 draw_cursor (text, FALSE);
5344 /* Expose only what changed */
5346 if (start1 < start2)
5347 gtk_text_update_text (old_editable, start1, MIN(end1, start2));
5350 gtk_text_update_text (old_editable, MAX(end1, start2), end2);
5351 else if (end2 < end1)
5352 gtk_text_update_text (old_editable, end2, end1);
5356 /**********************************************************************/
5358 /**********************************************************************/
5360 #ifdef DEBUG_GTK_TEXT
5362 gtk_text_show_cache_line (GtkText *text, GList *cache,
5363 const char* what, const char* func, gint line)
5365 LineParams *lp = &CACHE_DATA(cache);
5368 if (cache == text->line_start_cache)
5369 g_message ("Line Start Cache: ");
5371 if (cache == text->current_line)
5372 g_message("Current Line: ");
5374 g_message ("%s:%d: cache line %s s=%d,e=%d,lh=%d (",
5382 for (i = lp->start.index; i < (lp->end.index + lp->wraps); i += 1)
5383 g_message ("%c", GTK_TEXT_INDEX (text, i));
5389 gtk_text_show_cache (GtkText *text, const char* func, gint line)
5391 GList *l = text->line_start_cache;
5397 /* back up to the absolute beginning of the line cache */
5401 g_message ("*** line cache ***\n");
5402 for (; l; l = l->next)
5403 gtk_text_show_cache_line (text, l, "all", func, line);
5407 gtk_text_assert_mark (GtkText *text,
5408 GtkPropertyMark *mark,
5409 GtkPropertyMark *before,
5410 GtkPropertyMark *after,
5415 GtkPropertyMark correct_mark = find_mark (text, mark->index);
5417 if (mark->offset != correct_mark.offset ||
5418 mark->property != correct_mark.property)
5419 g_warning ("incorrect %s text property marker in %s:%d, index %d -- bad!", where, msg, line, mark->index);
5423 gtk_text_assert (GtkText *text,
5427 GList* cache = text->line_start_cache;
5428 GtkPropertyMark* before_mark = NULL;
5429 GtkPropertyMark* after_mark = NULL;
5431 gtk_text_show_props (text, msg, line);
5433 for (; cache->prev; cache = cache->prev)
5436 g_message ("*** line markers ***\n");
5438 for (; cache; cache = cache->next)
5440 after_mark = &CACHE_DATA(cache).end;
5441 gtk_text_assert_mark (text, &CACHE_DATA(cache).start, before_mark, after_mark, msg, "start", line);
5442 before_mark = &CACHE_DATA(cache).start;
5445 after_mark = &CACHE_DATA(cache->next).start;
5449 gtk_text_assert_mark (text, &CACHE_DATA(cache).end, before_mark, after_mark, msg, "end", line);
5450 before_mark = &CACHE_DATA(cache).end;
5455 gtk_text_show_adj (GtkText *text,
5461 g_message ("*** adjustment ***\n");
5463 g_message ("%s:%d: %s adjustment l=%.1f u=%.1f v=%.1f si=%.1f pi=%.1f ps=%.1f\n",
5470 adj->step_increment,
5471 adj->page_increment,
5476 gtk_text_show_props (GtkText *text,
5480 GList* props = text->text_properties;
5483 g_message ("%s:%d: ", msg, line);
5485 for (; props; props = props->next)
5487 TextProperty *p = (TextProperty*)props->data;
5489 proplen += p->length;
5491 g_message ("[%d,%p,", p->length, p);
5492 if (p->flags & PROPERTY_FONT)
5493 g_message ("%p,", p->font);
5496 if (p->flags & PROPERTY_FOREGROUND)
5497 g_message ("%ld, ", p->fore_color.pixel);
5500 if (p->flags & PROPERTY_BACKGROUND)
5501 g_message ("%ld] ", p->back_color.pixel);
5508 if (proplen - 1 != TEXT_LENGTH(text))
5509 g_warning ("incorrect property list length in %s:%d -- bad!", msg, line);
5513 #define __GTK_TEXT_C__
5514 #include "gtkaliasdef.c"