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/.
29 #include "gdk/gdkkeysyms.h"
30 #include "gdk/gdki18n.h"
32 #include "gtkselection.h"
33 #include "gtksignal.h"
34 #define GTK_ENABLE_BROKEN
36 #include "line-wrap.xbm"
37 #include "line-arrow.xbm"
41 #define INITIAL_BUFFER_SIZE 1024
42 #define INITIAL_LINE_CACHE_SIZE 256
43 #define MIN_GAP_SIZE 256
44 #define LINE_DELIM '\n'
45 #define MIN_TEXT_WIDTH_LINES 20
46 #define MIN_TEXT_HEIGHT_LINES 10
47 #define TEXT_BORDER_ROOM 1
48 #define LINE_WRAP_ROOM 8 /* The bitmaps are 6 wide. */
49 #define DEFAULT_TAB_STOP_WIDTH 4
50 #define SCROLL_PIXELS 5
51 #define KEY_SCROLL_PIXELS 10
52 #define SCROLL_TIME 100
53 #define FREEZE_LENGTH 1024
54 /* Freeze text when inserting or deleting more than this many characters */
56 #define SET_PROPERTY_MARK(m, p, o) do { \
57 (m)->property = (p); \
60 #define MARK_CURRENT_PROPERTY(mark) ((TextProperty*)(mark)->property->data)
61 #define MARK_NEXT_PROPERTY(mark) ((TextProperty*)(mark)->property->next->data)
62 #define MARK_PREV_PROPERTY(mark) ((TextProperty*)((mark)->property->prev ? \
63 (mark)->property->prev->data \
65 #define MARK_PREV_LIST_PTR(mark) ((mark)->property->prev)
66 #define MARK_LIST_PTR(mark) ((mark)->property)
67 #define MARK_NEXT_LIST_PTR(mark) ((mark)->property->next)
68 #define MARK_OFFSET(mark) ((mark)->offset)
69 #define MARK_PROPERTY_LENGTH(mark) (MARK_CURRENT_PROPERTY(mark)->length)
72 #define MARK_CURRENT_FONT(text, mark) \
73 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
74 MARK_CURRENT_PROPERTY(mark)->font->gdk_font : \
75 GTK_WIDGET (text)->style->font)
76 #define MARK_CURRENT_FORE(text, mark) \
77 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FOREGROUND) ? \
78 &MARK_CURRENT_PROPERTY(mark)->fore_color : \
79 &((GtkWidget *)text)->style->text[((GtkWidget *)text)->state])
80 #define MARK_CURRENT_BACK(text, mark) \
81 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_BACKGROUND) ? \
82 &MARK_CURRENT_PROPERTY(mark)->back_color : \
83 &((GtkWidget *)text)->style->base[((GtkWidget *)text)->state])
84 #define MARK_CURRENT_TEXT_FONT(text, mark) \
85 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
86 MARK_CURRENT_PROPERTY(mark)->font : \
89 #define TEXT_LENGTH(t) ((t)->text_end - (t)->gap_size)
90 #define FONT_HEIGHT(f) ((f)->ascent + (f)->descent)
91 #define LINE_HEIGHT(l) ((l).font_ascent + (l).font_descent)
92 #define LINE_CONTAINS(l, i) ((l).start.index <= (i) && (l).end.index >= (i))
93 #define LINE_STARTS_AT(l, i) ((l).start.index == (i))
94 #define LINE_START_PIXEL(l) ((l).tab_cont.pixel_offset)
95 #define LAST_INDEX(t, m) ((m).index == TEXT_LENGTH(t))
96 #define CACHE_DATA(c) (*(LineParams*)(c)->data)
106 typedef struct _TextProperty TextProperty;
107 typedef struct _TabStopMark TabStopMark;
108 typedef struct _PrevTabCont PrevTabCont;
109 typedef struct _FetchLinesData FetchLinesData;
110 typedef struct _LineParams LineParams;
111 typedef struct _SetVerticalScrollData SetVerticalScrollData;
113 typedef gint (*LineIteratorFunction) (GtkText* text, LineParams* lp, void* data);
121 struct _SetVerticalScrollData {
123 gint last_didnt_wrap;
124 gint last_line_start;
125 GtkPropertyMark mark;
130 /* The actual font. */
134 gint16 char_widths[256];
138 PROPERTY_FONT = 1 << 0,
139 PROPERTY_FOREGROUND = 1 << 1,
140 PROPERTY_BACKGROUND = 1 << 2
148 /* Background Color. */
151 /* Foreground Color. */
154 /* Show which properties are set */
155 TextPropertyFlags flags;
157 /* Length of this property. */
163 GList* tab_stops; /* Index into list containing the next tab position. If
164 * NULL, using default widths. */
171 TabStopMark tab_start;
174 struct _FetchLinesData
187 guint displayable_chars;
190 PrevTabCont tab_cont;
191 PrevTabCont tab_cont_next;
193 GtkPropertyMark start;
198 static void gtk_text_class_init (GtkTextClass *klass);
199 static void gtk_text_set_property (GObject *object,
203 static void gtk_text_get_property (GObject *object,
207 static void gtk_text_init (GtkText *text);
208 static void gtk_text_destroy (GtkObject *object);
209 static void gtk_text_finalize (GObject *object);
210 static void gtk_text_realize (GtkWidget *widget);
211 static void gtk_text_unrealize (GtkWidget *widget);
212 static void gtk_text_style_set (GtkWidget *widget,
213 GtkStyle *previous_style);
214 static void gtk_text_state_changed (GtkWidget *widget,
215 GtkStateType previous_state);
216 static void gtk_text_draw_focus (GtkWidget *widget);
217 static void gtk_text_size_request (GtkWidget *widget,
218 GtkRequisition *requisition);
219 static void gtk_text_size_allocate (GtkWidget *widget,
220 GtkAllocation *allocation);
221 static void gtk_text_adjustment (GtkAdjustment *adjustment,
223 static void gtk_text_insert_text (GtkOldEditable *old_editable,
224 const gchar *new_text,
225 gint new_text_length,
227 static void gtk_text_delete_text (GtkOldEditable *old_editable,
230 static void gtk_text_update_text (GtkOldEditable *old_editable,
233 static gchar *gtk_text_get_chars (GtkOldEditable *old_editable,
236 static void gtk_text_set_selection (GtkOldEditable *old_editable,
239 static void gtk_text_real_set_editable (GtkOldEditable *old_editable,
240 gboolean is_editable);
242 static void gtk_text_adjustment_destroyed (GtkAdjustment *adjustment,
246 static gint gtk_text_expose (GtkWidget *widget,
247 GdkEventExpose *event);
248 static gint gtk_text_button_press (GtkWidget *widget,
249 GdkEventButton *event);
250 static gint gtk_text_button_release (GtkWidget *widget,
251 GdkEventButton *event);
252 static gint gtk_text_motion_notify (GtkWidget *widget,
253 GdkEventMotion *event);
254 static gint gtk_text_key_press (GtkWidget *widget,
256 static gint gtk_text_focus_in (GtkWidget *widget,
257 GdkEventFocus *event);
258 static gint gtk_text_focus_out (GtkWidget *widget,
259 GdkEventFocus *event);
261 static void move_gap (GtkText* text, guint index);
262 static void make_forward_space (GtkText* text, guint len);
264 /* Property management */
265 static GtkTextFont* get_text_font (GdkFont* gfont);
266 static void text_font_unref (GtkTextFont *text_font);
268 static void insert_text_property (GtkText* text, GdkFont* font,
269 GdkColor *fore, GdkColor* back, guint len);
270 static TextProperty* new_text_property (GtkText *text, GdkFont* font,
271 GdkColor* fore, GdkColor* back, guint length);
272 static void destroy_text_property (TextProperty *prop);
273 static void init_properties (GtkText *text);
274 static void realize_property (GtkText *text, TextProperty *prop);
275 static void realize_properties (GtkText *text);
276 static void unrealize_property (GtkText *text, TextProperty *prop);
277 static void unrealize_properties (GtkText *text);
279 static void delete_text_property (GtkText* text, guint len);
281 static guint pixel_height_of (GtkText* text, GList* cache_line);
283 /* Property Movement and Size Computations */
284 static void advance_mark (GtkPropertyMark* mark);
285 static void decrement_mark (GtkPropertyMark* mark);
286 static void advance_mark_n (GtkPropertyMark* mark, gint n);
287 static void decrement_mark_n (GtkPropertyMark* mark, gint n);
288 static void move_mark_n (GtkPropertyMark* mark, gint n);
289 static GtkPropertyMark find_mark (GtkText* text, guint mark_position);
290 static GtkPropertyMark find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near);
291 static void find_line_containing_point (GtkText* text, guint point,
295 static void compute_lines_pixels (GtkText* text, guint char_count,
296 guint *lines, guint *pixels);
298 static gint total_line_height (GtkText* text,
301 static LineParams find_line_params (GtkText* text,
302 const GtkPropertyMark *mark,
303 const PrevTabCont *tab_cont,
304 PrevTabCont *next_cont);
305 static void recompute_geometry (GtkText* text);
306 static void insert_expose (GtkText* text, guint old_pixels, gint nchars, guint new_line_count);
307 static void delete_expose (GtkText* text,
311 static GdkGC *create_bg_gc (GtkText *text);
312 static void clear_area (GtkText *text, GdkRectangle *area);
313 static void draw_line (GtkText* text,
316 static void draw_line_wrap (GtkText* text,
318 static void draw_cursor (GtkText* text, gint absolute);
319 static void undraw_cursor (GtkText* text, gint absolute);
320 static gint drawn_cursor_min (GtkText* text);
321 static gint drawn_cursor_max (GtkText* text);
322 static void expose_text (GtkText* text, GdkRectangle *area, gboolean cursor);
324 /* Search and Placement. */
325 static void find_cursor (GtkText* text,
327 static void find_cursor_at_line (GtkText* text,
328 const LineParams* start_line,
330 static void find_mouse_cursor (GtkText* text, gint x, gint y);
333 static void adjust_adj (GtkText* text, GtkAdjustment* adj);
334 static void scroll_up (GtkText* text, gint diff);
335 static void scroll_down (GtkText* text, gint diff);
336 static void scroll_int (GtkText* text, gint diff);
338 static void process_exposes (GtkText *text);
340 /* Cache Management. */
341 static void free_cache (GtkText* text);
342 static GList* remove_cache_line (GtkText* text, GList* list);
345 static void move_cursor_buffer_ver (GtkText *text, int dir);
346 static void move_cursor_page_ver (GtkText *text, int dir);
347 static void move_cursor_ver (GtkText *text, int count);
348 static void move_cursor_hor (GtkText *text, int count);
350 /* Binding actions */
351 static void gtk_text_move_cursor (GtkOldEditable *old_editable,
354 static void gtk_text_move_word (GtkOldEditable *old_editable,
356 static void gtk_text_move_page (GtkOldEditable *old_editable,
359 static void gtk_text_move_to_row (GtkOldEditable *old_editable,
361 static void gtk_text_move_to_column (GtkOldEditable *old_editable,
363 static void gtk_text_kill_char (GtkOldEditable *old_editable,
365 static void gtk_text_kill_word (GtkOldEditable *old_editable,
367 static void gtk_text_kill_line (GtkOldEditable *old_editable,
371 static void gtk_text_move_forward_character (GtkText *text);
372 static void gtk_text_move_backward_character (GtkText *text);
373 static void gtk_text_move_forward_word (GtkText *text);
374 static void gtk_text_move_backward_word (GtkText *text);
375 static void gtk_text_move_beginning_of_line (GtkText *text);
376 static void gtk_text_move_end_of_line (GtkText *text);
377 static void gtk_text_move_next_line (GtkText *text);
378 static void gtk_text_move_previous_line (GtkText *text);
380 static void gtk_text_delete_forward_character (GtkText *text);
381 static void gtk_text_delete_backward_character (GtkText *text);
382 static void gtk_text_delete_forward_word (GtkText *text);
383 static void gtk_text_delete_backward_word (GtkText *text);
384 static void gtk_text_delete_line (GtkText *text);
385 static void gtk_text_delete_to_line_end (GtkText *text);
386 static void gtk_text_select_word (GtkText *text,
388 static void gtk_text_select_line (GtkText *text,
391 static void gtk_text_set_position (GtkOldEditable *old_editable,
394 /* #define DEBUG_GTK_TEXT */
396 #if defined(DEBUG_GTK_TEXT) && defined(__GNUC__)
397 /* Debugging utilities. */
398 static void gtk_text_assert_mark (GtkText *text,
399 GtkPropertyMark *mark,
400 GtkPropertyMark *before,
401 GtkPropertyMark *after,
406 static void gtk_text_assert (GtkText *text,
409 static void gtk_text_show_cache_line (GtkText *text, GList *cache,
410 const char* what, const char* func, gint line);
411 static void gtk_text_show_cache (GtkText *text, const char* func, gint line);
412 static void gtk_text_show_adj (GtkText *text,
417 static void gtk_text_show_props (GtkText* test,
421 #define TDEBUG(args) g_message args
422 #define TEXT_ASSERT(text) gtk_text_assert (text,__PRETTY_FUNCTION__,__LINE__)
423 #define TEXT_ASSERT_MARK(text,mark,msg) gtk_text_assert_mark (text,mark, \
424 __PRETTY_FUNCTION__,msg,__LINE__)
425 #define TEXT_SHOW(text) gtk_text_show_cache (text, __PRETTY_FUNCTION__,__LINE__)
426 #define TEXT_SHOW_LINE(text,line,msg) gtk_text_show_cache_line (text,line,msg,\
427 __PRETTY_FUNCTION__,__LINE__)
428 #define TEXT_SHOW_ADJ(text,adj,msg) gtk_text_show_adj (text,adj,msg, \
429 __PRETTY_FUNCTION__,__LINE__)
432 #define TEXT_ASSERT(text)
433 #define TEXT_ASSERT_MARK(text,mark,msg)
434 #define TEXT_SHOW(text)
435 #define TEXT_SHOW_LINE(text,line,msg)
436 #define TEXT_SHOW_ADJ(text,adj,msg)
439 /* Memory Management. */
440 static GMemChunk *params_mem_chunk = NULL;
441 static GMemChunk *text_property_chunk = NULL;
443 static GtkWidgetClass *parent_class = NULL;
446 static const GtkTextFunction control_keys[26] =
448 (GtkTextFunction)gtk_text_move_beginning_of_line, /* a */
449 (GtkTextFunction)gtk_text_move_backward_character, /* b */
450 (GtkTextFunction)gtk_editable_copy_clipboard, /* c */
451 (GtkTextFunction)gtk_text_delete_forward_character, /* d */
452 (GtkTextFunction)gtk_text_move_end_of_line, /* e */
453 (GtkTextFunction)gtk_text_move_forward_character, /* f */
455 (GtkTextFunction)gtk_text_delete_backward_character, /* h */
458 (GtkTextFunction)gtk_text_delete_to_line_end, /* k */
461 (GtkTextFunction)gtk_text_move_next_line, /* n */
463 (GtkTextFunction)gtk_text_move_previous_line, /* p */
468 (GtkTextFunction)gtk_text_delete_line, /* u */
469 (GtkTextFunction)gtk_editable_paste_clipboard, /* v */
470 (GtkTextFunction)gtk_text_delete_backward_word, /* w */
471 (GtkTextFunction)gtk_editable_cut_clipboard, /* x */
476 static const GtkTextFunction alt_keys[26] =
479 (GtkTextFunction)gtk_text_move_backward_word, /* b */
481 (GtkTextFunction)gtk_text_delete_forward_word, /* d */
483 (GtkTextFunction)gtk_text_move_forward_word, /* f */
507 /**********************************************************************/
509 /**********************************************************************/
512 gtk_text_get_type (void)
514 static GtkType text_type = 0;
518 static const GtkTypeInfo text_info =
522 sizeof (GtkTextClass),
523 (GtkClassInitFunc) gtk_text_class_init,
524 (GtkObjectInitFunc) gtk_text_init,
525 /* reserved_1 */ NULL,
526 /* reserved_2 */ NULL,
527 (GtkClassInitFunc) NULL,
530 text_type = gtk_type_unique (GTK_TYPE_OLD_EDITABLE, &text_info);
537 gtk_text_class_init (GtkTextClass *class)
539 GObjectClass *gobject_class;
540 GtkObjectClass *object_class;
541 GtkWidgetClass *widget_class;
542 GtkOldEditableClass *old_editable_class;
544 gobject_class = G_OBJECT_CLASS (class);
545 object_class = (GtkObjectClass*) class;
546 widget_class = (GtkWidgetClass*) class;
547 old_editable_class = (GtkOldEditableClass*) class;
548 parent_class = gtk_type_class (GTK_TYPE_OLD_EDITABLE);
550 gobject_class->finalize = gtk_text_finalize;
551 gobject_class->set_property = gtk_text_set_property;
552 gobject_class->get_property = gtk_text_get_property;
554 object_class->destroy = gtk_text_destroy;
556 widget_class->realize = gtk_text_realize;
557 widget_class->unrealize = gtk_text_unrealize;
558 widget_class->style_set = gtk_text_style_set;
559 widget_class->state_changed = gtk_text_state_changed;
560 widget_class->size_request = gtk_text_size_request;
561 widget_class->size_allocate = gtk_text_size_allocate;
562 widget_class->expose_event = gtk_text_expose;
563 widget_class->button_press_event = gtk_text_button_press;
564 widget_class->button_release_event = gtk_text_button_release;
565 widget_class->motion_notify_event = gtk_text_motion_notify;
566 widget_class->key_press_event = gtk_text_key_press;
567 widget_class->focus_in_event = gtk_text_focus_in;
568 widget_class->focus_out_event = gtk_text_focus_out;
570 old_editable_class->set_editable = gtk_text_real_set_editable;
571 old_editable_class->insert_text = gtk_text_insert_text;
572 old_editable_class->delete_text = gtk_text_delete_text;
574 old_editable_class->move_cursor = gtk_text_move_cursor;
575 old_editable_class->move_word = gtk_text_move_word;
576 old_editable_class->move_page = gtk_text_move_page;
577 old_editable_class->move_to_row = gtk_text_move_to_row;
578 old_editable_class->move_to_column = gtk_text_move_to_column;
580 old_editable_class->kill_char = gtk_text_kill_char;
581 old_editable_class->kill_word = gtk_text_kill_word;
582 old_editable_class->kill_line = gtk_text_kill_line;
584 old_editable_class->update_text = gtk_text_update_text;
585 old_editable_class->get_chars = gtk_text_get_chars;
586 old_editable_class->set_selection = gtk_text_set_selection;
587 old_editable_class->set_position = gtk_text_set_position;
589 class->set_scroll_adjustments = gtk_text_set_adjustments;
591 g_object_class_install_property (gobject_class,
593 g_param_spec_object ("hadjustment",
594 _("Horizontal Adjustment"),
595 _("Horizontal adjustment for the text widget"),
599 g_object_class_install_property (gobject_class,
601 g_param_spec_object ("vadjustment",
602 _("Vertical Adjustment"),
603 _("Vertical adjustment for the text widget"),
607 g_object_class_install_property (gobject_class,
609 g_param_spec_boolean ("line_wrap",
611 _("Whether lines are wrapped at widget edges"),
615 g_object_class_install_property (gobject_class,
617 g_param_spec_boolean ("word_wrap",
619 _("Whether words are wrapped at widget edges"),
623 widget_class->set_scroll_adjustments_signal =
624 gtk_signal_new ("set_scroll_adjustments",
626 GTK_CLASS_TYPE (object_class),
627 GTK_SIGNAL_OFFSET (GtkTextClass, set_scroll_adjustments),
628 gtk_marshal_VOID__OBJECT_OBJECT,
629 GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
633 gtk_text_set_property (GObject *object,
640 text = GTK_TEXT (object);
644 case PROP_HADJUSTMENT:
645 gtk_text_set_adjustments (text,
646 g_value_get_object (value),
649 case PROP_VADJUSTMENT:
650 gtk_text_set_adjustments (text,
652 g_value_get_object (value));
655 gtk_text_set_line_wrap (text, g_value_get_boolean (value));
658 gtk_text_set_word_wrap (text, g_value_get_boolean (value));
661 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
667 gtk_text_get_property (GObject *object,
674 text = GTK_TEXT (object);
678 case PROP_HADJUSTMENT:
679 g_value_set_object (value, text->hadj);
681 case PROP_VADJUSTMENT:
682 g_value_set_object (value, text->vadj);
685 g_value_set_boolean (value, text->line_wrap);
688 g_value_set_boolean (value, text->word_wrap);
691 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
697 gtk_text_init (GtkText *text)
699 GTK_WIDGET_SET_FLAGS (text, GTK_CAN_FOCUS);
701 text->text_area = NULL;
706 text->line_wrap_bitmap = NULL;
707 text->line_arrow_bitmap = NULL;
709 text->use_wchar = FALSE;
710 text->text.ch = g_new (guchar, INITIAL_BUFFER_SIZE);
711 text->text_len = INITIAL_BUFFER_SIZE;
713 text->scratch_buffer.ch = NULL;
714 text->scratch_buffer_len = 0;
716 text->freeze_count = 0;
718 if (!params_mem_chunk)
719 params_mem_chunk = g_mem_chunk_new ("LineParams",
721 256 * sizeof (LineParams),
724 text->default_tab_width = 4;
725 text->tab_stops = NULL;
727 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
728 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
730 text->line_start_cache = NULL;
731 text->first_cut_pixels = 0;
733 text->line_wrap = TRUE;
734 text->word_wrap = FALSE;
739 text->current_font = NULL;
741 init_properties (text);
743 GTK_OLD_EDITABLE (text)->editable = FALSE;
745 gtk_text_set_adjustments (text, NULL, NULL);
746 gtk_editable_set_position (GTK_EDITABLE (text), 0);
750 gtk_text_new (GtkAdjustment *hadj,
756 g_return_val_if_fail (GTK_IS_ADJUSTMENT (hadj), NULL);
758 g_return_val_if_fail (GTK_IS_ADJUSTMENT (vadj), NULL);
760 text = gtk_widget_new (GTK_TYPE_TEXT,
769 gtk_text_set_word_wrap (GtkText *text,
772 g_return_if_fail (text != NULL);
773 g_return_if_fail (GTK_IS_TEXT (text));
775 text->word_wrap = (word_wrap != FALSE);
777 if (GTK_WIDGET_REALIZED (text))
779 recompute_geometry (text);
780 gtk_widget_queue_draw (GTK_WIDGET (text));
783 g_object_notify (G_OBJECT (text), "word_wrap");
787 gtk_text_set_line_wrap (GtkText *text,
790 g_return_if_fail (text != NULL);
791 g_return_if_fail (GTK_IS_TEXT (text));
793 text->line_wrap = (line_wrap != FALSE);
795 if (GTK_WIDGET_REALIZED (text))
797 recompute_geometry (text);
798 gtk_widget_queue_draw (GTK_WIDGET (text));
801 g_object_notify (G_OBJECT (text), "line_wrap");
805 gtk_text_set_editable (GtkText *text,
806 gboolean is_editable)
808 g_return_if_fail (text != NULL);
809 g_return_if_fail (GTK_IS_TEXT (text));
811 gtk_editable_set_editable (GTK_EDITABLE (text), is_editable);
815 gtk_text_real_set_editable (GtkOldEditable *old_editable,
816 gboolean is_editable)
820 g_return_if_fail (old_editable != NULL);
821 g_return_if_fail (GTK_IS_TEXT (old_editable));
823 text = GTK_TEXT (old_editable);
825 old_editable->editable = (is_editable != FALSE);
828 draw_cursor (text, TRUE);
830 undraw_cursor (text, TRUE);
834 gtk_text_set_adjustments (GtkText *text,
838 g_return_if_fail (text != NULL);
839 g_return_if_fail (GTK_IS_TEXT (text));
841 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
843 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
845 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
847 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
849 if (text->hadj && (text->hadj != hadj))
851 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
852 gtk_object_unref (GTK_OBJECT (text->hadj));
855 if (text->vadj && (text->vadj != vadj))
857 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
858 gtk_object_unref (GTK_OBJECT (text->vadj));
861 if (text->hadj != hadj)
864 gtk_object_ref (GTK_OBJECT (text->hadj));
865 gtk_object_sink (GTK_OBJECT (text->hadj));
867 gtk_signal_connect (GTK_OBJECT (text->hadj), "changed",
868 (GtkSignalFunc) gtk_text_adjustment,
870 gtk_signal_connect (GTK_OBJECT (text->hadj), "value_changed",
871 (GtkSignalFunc) gtk_text_adjustment,
873 gtk_signal_connect (GTK_OBJECT (text->hadj), "destroy",
874 (GtkSignalFunc) gtk_text_adjustment_destroyed,
876 gtk_text_adjustment (hadj, text);
878 g_object_notify (G_OBJECT (text), "hadjustment");
881 if (text->vadj != vadj)
884 gtk_object_ref (GTK_OBJECT (text->vadj));
885 gtk_object_sink (GTK_OBJECT (text->vadj));
887 gtk_signal_connect (GTK_OBJECT (text->vadj), "changed",
888 (GtkSignalFunc) gtk_text_adjustment,
890 gtk_signal_connect (GTK_OBJECT (text->vadj), "value_changed",
891 (GtkSignalFunc) gtk_text_adjustment,
893 gtk_signal_connect (GTK_OBJECT (text->vadj), "destroy",
894 (GtkSignalFunc) gtk_text_adjustment_destroyed,
896 gtk_text_adjustment (vadj, text);
898 g_object_notify (G_OBJECT (text), "vadjustment");
903 gtk_text_set_point (GtkText *text,
906 g_return_if_fail (text != NULL);
907 g_return_if_fail (GTK_IS_TEXT (text));
908 g_return_if_fail (index <= TEXT_LENGTH (text));
910 text->point = find_mark (text, index);
914 gtk_text_get_point (GtkText *text)
916 g_return_val_if_fail (text != NULL, 0);
917 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
919 return text->point.index;
923 gtk_text_get_length (GtkText *text)
925 g_return_val_if_fail (text != NULL, 0);
926 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
928 return TEXT_LENGTH (text);
932 gtk_text_freeze (GtkText *text)
934 g_return_if_fail (text != NULL);
935 g_return_if_fail (GTK_IS_TEXT (text));
937 text->freeze_count++;
941 gtk_text_thaw (GtkText *text)
943 g_return_if_fail (text != NULL);
944 g_return_if_fail (GTK_IS_TEXT (text));
946 if (text->freeze_count)
947 if (!(--text->freeze_count) && GTK_WIDGET_REALIZED (text))
949 recompute_geometry (text);
950 gtk_widget_queue_draw (GTK_WIDGET (text));
955 gtk_text_insert (GtkText *text,
962 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
963 gboolean frozen = FALSE;
965 gint new_line_count = 1;
966 guint old_height = 0;
971 g_return_if_fail (text != NULL);
972 g_return_if_fail (GTK_IS_TEXT (text));
975 length = strlen (chars);
982 if (!text->freeze_count && (length > FREEZE_LENGTH))
984 gtk_text_freeze (text);
988 if (!text->freeze_count && (text->line_start_cache != NULL))
990 find_line_containing_point (text, text->point.index, TRUE);
991 old_height = total_line_height (text, text->current_line, 1);
994 if ((TEXT_LENGTH (text) == 0) && (text->use_wchar == FALSE))
997 widget = GTK_WIDGET (text);
998 gtk_widget_ensure_style (widget);
999 if ((widget->style) && (widget->style->font->type == GDK_FONT_FONTSET))
1001 text->use_wchar = TRUE;
1002 g_free (text->text.ch);
1003 text->text.wc = g_new (GdkWChar, INITIAL_BUFFER_SIZE);
1004 text->text_len = INITIAL_BUFFER_SIZE;
1005 if (text->scratch_buffer.ch)
1006 g_free (text->scratch_buffer.ch);
1007 text->scratch_buffer.wc = NULL;
1008 text->scratch_buffer_len = 0;
1012 move_gap (text, text->point.index);
1013 make_forward_space (text, length);
1015 if (text->use_wchar)
1017 char *chars_nt = (char *)chars;
1020 chars_nt = g_new (char, length+1);
1021 memcpy (chars_nt, chars, length);
1022 chars_nt[length] = 0;
1024 numwcs = gdk_mbstowcs (text->text.wc + text->gap_position, chars_nt,
1026 if (chars_nt != chars)
1034 memcpy(text->text.ch + text->gap_position, chars, length);
1037 if (!text->freeze_count && (text->line_start_cache != NULL))
1039 if (text->use_wchar)
1041 for (i=0; i<numwcs; i++)
1042 if (text->text.wc[text->gap_position + i] == '\n')
1047 for (i=0; i<numwcs; i++)
1048 if (text->text.ch[text->gap_position + i] == '\n')
1055 insert_text_property (text, font, fore, back, numwcs);
1057 text->gap_size -= numwcs;
1058 text->gap_position += numwcs;
1060 if (text->point.index < text->first_line_start_index)
1061 text->first_line_start_index += numwcs;
1062 if (text->point.index < old_editable->selection_start_pos)
1063 old_editable->selection_start_pos += numwcs;
1064 if (text->point.index < old_editable->selection_end_pos)
1065 old_editable->selection_end_pos += numwcs;
1066 /* We'll reset the cursor later anyways if we aren't frozen */
1067 if (text->point.index < text->cursor_mark.index)
1068 text->cursor_mark.index += numwcs;
1070 advance_mark_n (&text->point, numwcs);
1072 if (!text->freeze_count && (text->line_start_cache != NULL))
1073 insert_expose (text, old_height, numwcs, new_line_count);
1077 gtk_text_thaw (text);
1081 gtk_text_backward_delete (GtkText *text,
1084 g_return_val_if_fail (text != NULL, FALSE);
1085 g_return_val_if_fail (GTK_IS_TEXT (text), FALSE);
1087 if (nchars > text->point.index || nchars <= 0)
1090 gtk_text_set_point (text, text->point.index - nchars);
1092 return gtk_text_forward_delete (text, nchars);
1096 gtk_text_forward_delete (GtkText *text,
1099 guint old_lines, old_height;
1100 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
1101 gboolean frozen = FALSE;
1103 g_return_val_if_fail (text != NULL, FALSE);
1104 g_return_val_if_fail (GTK_IS_TEXT (text), FALSE);
1106 if (text->point.index + nchars > TEXT_LENGTH (text) || nchars <= 0)
1109 if (!text->freeze_count && nchars > FREEZE_LENGTH)
1111 gtk_text_freeze (text);
1115 if (!text->freeze_count && text->line_start_cache != NULL)
1117 /* We need to undraw the cursor here, since we may later
1118 * delete the cursor's property
1120 undraw_cursor (text, FALSE);
1121 find_line_containing_point (text, text->point.index, TRUE);
1122 compute_lines_pixels (text, nchars, &old_lines, &old_height);
1125 /* FIXME, or resizing after deleting will be odd */
1126 if (text->point.index < text->first_line_start_index)
1128 if (text->point.index + nchars >= text->first_line_start_index)
1130 text->first_line_start_index = text->point.index;
1131 while ((text->first_line_start_index > 0) &&
1132 (GTK_TEXT_INDEX (text, text->first_line_start_index - 1)
1134 text->first_line_start_index -= 1;
1138 text->first_line_start_index -= nchars;
1141 if (text->point.index < old_editable->selection_start_pos)
1142 old_editable->selection_start_pos -=
1143 MIN(nchars, old_editable->selection_start_pos - text->point.index);
1144 if (text->point.index < old_editable->selection_end_pos)
1145 old_editable->selection_end_pos -=
1146 MIN(nchars, old_editable->selection_end_pos - text->point.index);
1147 /* We'll reset the cursor later anyways if we aren't frozen */
1148 if (text->point.index < text->cursor_mark.index)
1149 move_mark_n (&text->cursor_mark,
1150 -MIN(nchars, text->cursor_mark.index - text->point.index));
1152 move_gap (text, text->point.index);
1154 text->gap_size += nchars;
1156 delete_text_property (text, nchars);
1158 if (!text->freeze_count && (text->line_start_cache != NULL))
1160 delete_expose (text, nchars, old_lines, old_height);
1161 draw_cursor (text, FALSE);
1165 gtk_text_thaw (text);
1171 gtk_text_set_position (GtkOldEditable *old_editable,
1174 GtkText *text = (GtkText *) old_editable;
1176 undraw_cursor (text, FALSE);
1177 text->cursor_mark = find_mark (text, position);
1178 find_cursor (text, TRUE);
1179 draw_cursor (text, FALSE);
1180 gtk_editable_select_region (GTK_EDITABLE (old_editable), 0, 0);
1184 gtk_text_get_chars (GtkOldEditable *old_editable,
1192 g_return_val_if_fail (old_editable != NULL, NULL);
1193 g_return_val_if_fail (GTK_IS_TEXT (old_editable), NULL);
1194 text = GTK_TEXT (old_editable);
1197 end_pos = TEXT_LENGTH (text);
1199 if ((start_pos < 0) ||
1200 (end_pos > TEXT_LENGTH (text)) ||
1201 (end_pos < start_pos))
1204 move_gap (text, TEXT_LENGTH (text));
1205 make_forward_space (text, 1);
1207 if (text->use_wchar)
1210 ch = text->text.wc[end_pos];
1211 text->text.wc[end_pos] = 0;
1212 retval = gdk_wcstombs (text->text.wc + start_pos);
1213 text->text.wc[end_pos] = ch;
1218 ch = text->text.ch[end_pos];
1219 text->text.ch[end_pos] = 0;
1220 retval = g_strdup (text->text.ch + start_pos);
1221 text->text.ch[end_pos] = ch;
1229 gtk_text_destroy (GtkObject *object)
1233 g_return_if_fail (GTK_IS_TEXT (object));
1235 text = GTK_TEXT (object);
1239 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
1240 gtk_object_unref (GTK_OBJECT (text->hadj));
1245 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
1246 gtk_object_unref (GTK_OBJECT (text->vadj));
1252 gtk_timeout_remove (text->timer);
1256 GTK_OBJECT_CLASS(parent_class)->destroy (object);
1260 gtk_text_finalize (GObject *object)
1265 g_return_if_fail (GTK_IS_TEXT (object));
1267 text = GTK_TEXT (object);
1269 /* Clean up the internal structures */
1270 if (text->use_wchar)
1271 g_free (text->text.wc);
1273 g_free (text->text.ch);
1275 tmp_list = text->text_properties;
1278 destroy_text_property (tmp_list->data);
1279 tmp_list = tmp_list->next;
1282 if (text->current_font)
1283 text_font_unref (text->current_font);
1285 g_list_free (text->text_properties);
1287 if (text->use_wchar)
1289 if (text->scratch_buffer.wc)
1290 g_free (text->scratch_buffer.wc);
1294 if (text->scratch_buffer.ch)
1295 g_free (text->scratch_buffer.ch);
1298 g_list_free (text->tab_stops);
1300 G_OBJECT_CLASS (parent_class)->finalize (object);
1304 gtk_text_realize (GtkWidget *widget)
1307 GtkOldEditable *old_editable;
1308 GdkWindowAttr attributes;
1309 gint attributes_mask;
1311 g_return_if_fail (widget != NULL);
1312 g_return_if_fail (GTK_IS_TEXT (widget));
1314 text = GTK_TEXT (widget);
1315 old_editable = GTK_OLD_EDITABLE (widget);
1316 GTK_WIDGET_SET_FLAGS (text, GTK_REALIZED);
1318 attributes.window_type = GDK_WINDOW_CHILD;
1319 attributes.x = widget->allocation.x;
1320 attributes.y = widget->allocation.y;
1321 attributes.width = widget->allocation.width;
1322 attributes.height = widget->allocation.height;
1323 attributes.wclass = GDK_INPUT_OUTPUT;
1324 attributes.visual = gtk_widget_get_visual (widget);
1325 attributes.colormap = gtk_widget_get_colormap (widget);
1326 attributes.event_mask = gtk_widget_get_events (widget);
1327 attributes.event_mask |= (GDK_EXPOSURE_MASK |
1328 GDK_BUTTON_PRESS_MASK |
1329 GDK_BUTTON_RELEASE_MASK |
1330 GDK_BUTTON_MOTION_MASK |
1331 GDK_ENTER_NOTIFY_MASK |
1332 GDK_LEAVE_NOTIFY_MASK |
1333 GDK_KEY_PRESS_MASK);
1334 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1336 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
1337 gdk_window_set_user_data (widget->window, text);
1339 attributes.x = (widget->style->xthickness + TEXT_BORDER_ROOM);
1340 attributes.y = (widget->style->ythickness + TEXT_BORDER_ROOM);
1341 attributes.width = MAX (1, (gint)widget->allocation.width - (gint)attributes.x * 2);
1342 attributes.height = MAX (1, (gint)widget->allocation.height - (gint)attributes.y * 2);
1344 attributes.cursor = gdk_cursor_new (GDK_XTERM);
1345 attributes_mask |= GDK_WA_CURSOR;
1347 text->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
1348 gdk_window_set_user_data (text->text_area, text);
1350 gdk_cursor_destroy (attributes.cursor); /* The X server will keep it around as long as necessary */
1352 widget->style = gtk_style_attach (widget->style, widget->window);
1354 /* Can't call gtk_style_set_background here because it's handled specially */
1355 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1356 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1358 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1359 text->bg_gc = create_bg_gc (text);
1361 text->line_wrap_bitmap = gdk_bitmap_create_from_data (text->text_area,
1362 (gchar*) line_wrap_bits,
1366 text->line_arrow_bitmap = gdk_bitmap_create_from_data (text->text_area,
1367 (gchar*) line_arrow_bits,
1371 text->gc = gdk_gc_new (text->text_area);
1372 gdk_gc_set_exposures (text->gc, TRUE);
1373 gdk_gc_set_foreground (text->gc, &widget->style->text[GTK_STATE_NORMAL]);
1375 realize_properties (text);
1376 gdk_window_show (text->text_area);
1377 init_properties (text);
1379 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
1380 gtk_old_editable_claim_selection (old_editable, TRUE, GDK_CURRENT_TIME);
1382 recompute_geometry (text);
1386 gtk_text_style_set (GtkWidget *widget,
1387 GtkStyle *previous_style)
1389 GtkText *text = GTK_TEXT (widget);
1391 if (GTK_WIDGET_REALIZED (widget))
1393 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1394 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1398 gdk_gc_destroy (text->bg_gc);
1402 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1403 text->bg_gc = create_bg_gc (text);
1405 recompute_geometry (text);
1408 if (text->current_font)
1409 text_font_unref (text->current_font);
1410 text->current_font = get_text_font (widget->style->font);
1414 gtk_text_state_changed (GtkWidget *widget,
1415 GtkStateType previous_state)
1417 GtkText *text = GTK_TEXT (widget);
1419 if (GTK_WIDGET_REALIZED (widget))
1421 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1422 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1427 gtk_text_unrealize (GtkWidget *widget)
1431 g_return_if_fail (widget != NULL);
1432 g_return_if_fail (GTK_IS_TEXT (widget));
1434 text = GTK_TEXT (widget);
1436 gdk_window_set_user_data (text->text_area, NULL);
1437 gdk_window_destroy (text->text_area);
1438 text->text_area = NULL;
1440 gdk_gc_destroy (text->gc);
1445 gdk_gc_destroy (text->bg_gc);
1449 gdk_pixmap_unref (text->line_wrap_bitmap);
1450 gdk_pixmap_unref (text->line_arrow_bitmap);
1452 unrealize_properties (text);
1456 if (GTK_WIDGET_CLASS (parent_class)->unrealize)
1457 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
1461 clear_focus_area (GtkText *text, gint area_x, gint area_y, gint area_width, gint area_height)
1463 GtkWidget *widget = GTK_WIDGET (text);
1466 gint ythick = TEXT_BORDER_ROOM + widget->style->ythickness;
1467 gint xthick = TEXT_BORDER_ROOM + widget->style->xthickness;
1471 if (area_width == 0 || area_height == 0)
1474 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1476 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
1478 gdk_gc_set_ts_origin (text->bg_gc,
1479 (- text->first_onscreen_hor_pixel + xthick) % width,
1480 (- text->first_onscreen_ver_pixel + ythick) % height);
1485 gc = widget->style->base_gc[widget->state];
1487 gdk_draw_rectangle (GTK_WIDGET (text)->window, gc, TRUE,
1488 area_x, area_y, area_width, area_height);
1492 gtk_text_draw_focus (GtkWidget *widget)
1498 g_return_if_fail (widget != NULL);
1499 g_return_if_fail (GTK_IS_TEXT (widget));
1501 text = GTK_TEXT (widget);
1503 if (GTK_WIDGET_DRAWABLE (widget))
1505 gint ythick = widget->style->ythickness;
1506 gint xthick = widget->style->xthickness;
1507 gint xextra = TEXT_BORDER_ROOM;
1508 gint yextra = TEXT_BORDER_ROOM;
1510 TDEBUG (("in gtk_text_draw_focus\n"));
1514 width = widget->allocation.width;
1515 height = widget->allocation.height;
1517 if (GTK_WIDGET_HAS_FOCUS (widget))
1526 gtk_paint_focus (widget->style, widget->window,
1527 NULL, widget, "text",
1529 widget->allocation.width - 1,
1530 widget->allocation.height - 1);
1533 gtk_paint_shadow (widget->style, widget->window,
1534 GTK_STATE_NORMAL, GTK_SHADOW_IN,
1535 NULL, widget, "text",
1536 x, y, width, height);
1540 width -= 2 * xthick;
1541 height -= 2 * ythick;
1544 clear_focus_area (text, x, y, width, yextra);
1546 clear_focus_area (text, x, y + yextra,
1547 xextra, y + height - 2 * yextra);
1549 clear_focus_area (text, x + width - xextra, y + yextra,
1550 xextra, height - 2 * ythick);
1552 clear_focus_area (text, x, x + height - yextra, width, yextra);
1556 TDEBUG (("in gtk_text_draw_focus (undrawable !!!)\n"));
1561 gtk_text_size_request (GtkWidget *widget,
1562 GtkRequisition *requisition)
1569 g_return_if_fail (widget != NULL);
1570 g_return_if_fail (GTK_IS_TEXT (widget));
1571 g_return_if_fail (requisition != NULL);
1573 xthickness = widget->style->xthickness + TEXT_BORDER_ROOM;
1574 ythickness = widget->style->ythickness + TEXT_BORDER_ROOM;
1576 char_height = MIN_TEXT_HEIGHT_LINES * (widget->style->font->ascent +
1577 widget->style->font->descent);
1579 char_width = MIN_TEXT_WIDTH_LINES * (gdk_text_width (widget->style->font,
1580 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
1584 requisition->width = char_width + xthickness * 2;
1585 requisition->height = char_height + ythickness * 2;
1589 gtk_text_size_allocate (GtkWidget *widget,
1590 GtkAllocation *allocation)
1593 GtkOldEditable *old_editable;
1595 g_return_if_fail (widget != NULL);
1596 g_return_if_fail (GTK_IS_TEXT (widget));
1597 g_return_if_fail (allocation != NULL);
1599 text = GTK_TEXT (widget);
1600 old_editable = GTK_OLD_EDITABLE (widget);
1602 widget->allocation = *allocation;
1603 if (GTK_WIDGET_REALIZED (widget))
1605 gdk_window_move_resize (widget->window,
1606 allocation->x, allocation->y,
1607 allocation->width, allocation->height);
1609 gdk_window_move_resize (text->text_area,
1610 widget->style->xthickness + TEXT_BORDER_ROOM,
1611 widget->style->ythickness + TEXT_BORDER_ROOM,
1612 MAX (1, (gint)widget->allocation.width - (gint)(widget->style->xthickness +
1613 (gint)TEXT_BORDER_ROOM) * 2),
1614 MAX (1, (gint)widget->allocation.height - (gint)(widget->style->ythickness +
1615 (gint)TEXT_BORDER_ROOM) * 2));
1617 recompute_geometry (text);
1622 gtk_text_expose (GtkWidget *widget,
1623 GdkEventExpose *event)
1625 g_return_val_if_fail (widget != NULL, FALSE);
1626 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1627 g_return_val_if_fail (event != NULL, FALSE);
1629 if (event->window == GTK_TEXT (widget)->text_area)
1631 TDEBUG (("in gtk_text_expose (expose)\n"));
1632 expose_text (GTK_TEXT (widget), &event->area, TRUE);
1634 else if (event->count == 0)
1636 TDEBUG (("in gtk_text_expose (focus)\n"));
1637 gtk_text_draw_focus (widget);
1644 gtk_text_scroll_timeout (gpointer data)
1647 GdkEventMotion event;
1649 GdkModifierType mask;
1651 GDK_THREADS_ENTER ();
1653 text = GTK_TEXT (data);
1656 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1658 if (mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK))
1665 gtk_text_motion_notify (GTK_WIDGET (text), &event);
1668 GDK_THREADS_LEAVE ();
1674 gtk_text_button_press (GtkWidget *widget,
1675 GdkEventButton *event)
1678 GtkOldEditable *old_editable;
1680 g_return_val_if_fail (widget != NULL, FALSE);
1681 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1682 g_return_val_if_fail (event != NULL, FALSE);
1684 text = GTK_TEXT (widget);
1685 old_editable = GTK_OLD_EDITABLE (widget);
1687 if (text->button && (event->button != text->button))
1690 text->button = event->button;
1692 if (!GTK_WIDGET_HAS_FOCUS (widget))
1693 gtk_widget_grab_focus (widget);
1695 if (event->button == 1)
1697 switch (event->type)
1699 case GDK_BUTTON_PRESS:
1700 gtk_grab_add (widget);
1702 undraw_cursor (text, FALSE);
1703 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1704 draw_cursor (text, FALSE);
1706 /* Set it now, so we display things right. We'll unset it
1707 * later if things don't work out */
1708 old_editable->has_selection = TRUE;
1709 gtk_text_set_selection (GTK_OLD_EDITABLE (text),
1710 text->cursor_mark.index,
1711 text->cursor_mark.index);
1715 case GDK_2BUTTON_PRESS:
1716 gtk_text_select_word (text, event->time);
1719 case GDK_3BUTTON_PRESS:
1720 gtk_text_select_line (text, event->time);
1727 else if (event->type == GDK_BUTTON_PRESS)
1729 if ((event->button == 2) && old_editable->editable)
1731 if (old_editable->selection_start_pos == old_editable->selection_end_pos ||
1732 old_editable->has_selection)
1734 undraw_cursor (text, FALSE);
1735 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1736 draw_cursor (text, FALSE);
1740 gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
1741 gdk_atom_intern ("UTF8_STRING", FALSE),
1746 gtk_grab_add (widget);
1748 undraw_cursor (text, FALSE);
1749 find_mouse_cursor (text, event->x, event->y);
1750 draw_cursor (text, FALSE);
1752 gtk_text_set_selection (GTK_OLD_EDITABLE (text),
1753 text->cursor_mark.index,
1754 text->cursor_mark.index);
1756 old_editable->has_selection = FALSE;
1757 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
1758 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
1766 gtk_text_button_release (GtkWidget *widget,
1767 GdkEventButton *event)
1770 GtkOldEditable *old_editable;
1771 g_return_val_if_fail (widget != NULL, FALSE);
1772 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1773 g_return_val_if_fail (event != NULL, FALSE);
1775 text = GTK_TEXT (widget);
1777 gtk_grab_remove (widget);
1779 if (text->button != event->button)
1786 gtk_timeout_remove (text->timer);
1790 if (event->button == 1)
1792 text = GTK_TEXT (widget);
1793 old_editable = GTK_OLD_EDITABLE (widget);
1795 gtk_grab_remove (widget);
1797 old_editable->has_selection = FALSE;
1798 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
1800 if (gtk_selection_owner_set (widget,
1801 GDK_SELECTION_PRIMARY,
1803 old_editable->has_selection = TRUE;
1805 gtk_text_update_text (old_editable, old_editable->selection_start_pos,
1806 old_editable->selection_end_pos);
1810 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
1811 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
1814 else if (event->button == 3)
1816 gtk_grab_remove (widget);
1819 undraw_cursor (text, FALSE);
1820 find_cursor (text, TRUE);
1821 draw_cursor (text, FALSE);
1827 gtk_text_motion_notify (GtkWidget *widget,
1828 GdkEventMotion *event)
1833 GdkModifierType mask;
1835 g_return_val_if_fail (widget != NULL, FALSE);
1836 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1837 g_return_val_if_fail (event != NULL, FALSE);
1839 text = GTK_TEXT (widget);
1843 mask = event->state;
1844 if (event->is_hint || (text->text_area != event->window))
1846 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1849 if ((text->button == 0) ||
1850 !(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)))
1853 gdk_window_get_size (text->text_area, NULL, &height);
1855 if ((y < 0) || (y > height))
1857 if (text->timer == 0)
1859 text->timer = gtk_timeout_add (SCROLL_TIME,
1860 gtk_text_scroll_timeout,
1864 scroll_int (text, y/2);
1866 scroll_int (text, (y - height)/2);
1872 undraw_cursor (GTK_TEXT (widget), FALSE);
1873 find_mouse_cursor (GTK_TEXT (widget), x, y);
1874 draw_cursor (GTK_TEXT (widget), FALSE);
1876 gtk_text_set_selection (GTK_OLD_EDITABLE (text),
1877 GTK_OLD_EDITABLE (text)->selection_start_pos,
1878 text->cursor_mark.index);
1884 gtk_text_insert_text (GtkOldEditable *old_editable,
1885 const gchar *new_text,
1886 gint new_text_length,
1889 GtkText *text = GTK_TEXT (old_editable);
1891 GdkColor *fore, *back;
1893 TextProperty *property;
1895 gtk_text_set_point (text, *position);
1897 property = MARK_CURRENT_PROPERTY (&text->point);
1898 font = property->flags & PROPERTY_FONT ? property->font->gdk_font : NULL;
1899 fore = property->flags & PROPERTY_FOREGROUND ? &property->fore_color : NULL;
1900 back = property->flags & PROPERTY_BACKGROUND ? &property->back_color : NULL;
1902 gtk_text_insert (text, font, fore, back, new_text, new_text_length);
1904 *position = text->point.index;
1908 gtk_text_delete_text (GtkOldEditable *old_editable,
1914 g_return_if_fail (start_pos >= 0);
1916 text = GTK_TEXT (old_editable);
1918 gtk_text_set_point (text, start_pos);
1920 end_pos = TEXT_LENGTH (text);
1922 if (end_pos > start_pos)
1923 gtk_text_forward_delete (text, end_pos - start_pos);
1927 gtk_text_key_press (GtkWidget *widget,
1931 GtkOldEditable *old_editable;
1936 g_return_val_if_fail (widget != NULL, FALSE);
1937 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1938 g_return_val_if_fail (event != NULL, FALSE);
1940 text = GTK_TEXT (widget);
1941 old_editable = GTK_OLD_EDITABLE (widget);
1943 key = event->keyval;
1946 if ((GTK_OLD_EDITABLE(text)->editable == FALSE))
1948 switch (event->keyval)
1952 if (event->state & GDK_CONTROL_MASK)
1953 scroll_int (text, -text->vadj->value);
1959 if (event->state & GDK_CONTROL_MASK)
1960 scroll_int (text, +text->vadj->upper);
1964 case GDK_KP_Page_Up:
1965 case GDK_Page_Up: scroll_int (text, -text->vadj->page_increment); break;
1966 case GDK_KP_Page_Down:
1967 case GDK_Page_Down: scroll_int (text, +text->vadj->page_increment); break;
1969 case GDK_Up: scroll_int (text, -KEY_SCROLL_PIXELS); break;
1971 case GDK_Down: scroll_int (text, +KEY_SCROLL_PIXELS); break;
1974 if (event->state & GDK_CONTROL_MASK)
1975 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
1986 gint extend_selection;
1988 guint initial_pos = old_editable->current_pos;
1990 text->point = find_mark (text, text->cursor_mark.index);
1992 extend_selection = event->state & GDK_SHIFT_MASK;
1993 extend_start = FALSE;
1995 if (extend_selection)
1997 old_editable->has_selection = TRUE;
1999 if (old_editable->selection_start_pos == old_editable->selection_end_pos)
2001 old_editable->selection_start_pos = text->point.index;
2002 old_editable->selection_end_pos = text->point.index;
2005 extend_start = (text->point.index == old_editable->selection_start_pos);
2008 switch (event->keyval)
2012 if (event->state & GDK_CONTROL_MASK)
2013 move_cursor_buffer_ver (text, -1);
2015 gtk_text_move_beginning_of_line (text);
2019 if (event->state & GDK_CONTROL_MASK)
2020 move_cursor_buffer_ver (text, +1);
2022 gtk_text_move_end_of_line (text);
2024 case GDK_KP_Page_Up:
2025 case GDK_Page_Up: move_cursor_page_ver (text, -1); break;
2026 case GDK_KP_Page_Down:
2027 case GDK_Page_Down: move_cursor_page_ver (text, +1); break;
2028 /* CUA has Ctrl-Up/Ctrl-Down as paragraph up down */
2030 case GDK_Up: move_cursor_ver (text, -1); break;
2032 case GDK_Down: move_cursor_ver (text, +1); break;
2035 if (event->state & GDK_CONTROL_MASK)
2036 gtk_text_move_backward_word (text);
2038 move_cursor_hor (text, -1);
2042 if (event->state & GDK_CONTROL_MASK)
2043 gtk_text_move_forward_word (text);
2045 move_cursor_hor (text, +1);
2049 if (event->state & GDK_CONTROL_MASK)
2050 gtk_text_delete_backward_word (text);
2052 gtk_text_delete_backward_character (text);
2055 gtk_text_delete_line (text);
2059 if (event->state & GDK_SHIFT_MASK)
2061 extend_selection = FALSE;
2062 gtk_editable_paste_clipboard (GTK_EDITABLE (old_editable));
2064 else if (event->state & GDK_CONTROL_MASK)
2066 gtk_editable_copy_clipboard (GTK_EDITABLE (old_editable));
2070 /* gtk_toggle_insert(text) -- IMPLEMENT */
2075 if (event->state & GDK_CONTROL_MASK)
2076 gtk_text_delete_forward_word (text);
2077 else if (event->state & GDK_SHIFT_MASK)
2079 extend_selection = FALSE;
2080 gtk_editable_cut_clipboard (GTK_EDITABLE (old_editable));
2083 gtk_text_delete_forward_character (text);
2086 case GDK_ISO_Left_Tab:
2088 position = text->point.index;
2089 gtk_editable_insert_text (GTK_EDITABLE (old_editable), "\t", 1, &position);
2093 if (event->state & GDK_CONTROL_MASK)
2094 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
2097 position = text->point.index;
2098 gtk_editable_insert_text (GTK_EDITABLE (old_editable), "\n", 1, &position);
2102 /* Don't insert literally */
2109 if (event->state & GDK_CONTROL_MASK)
2111 if ((key >= 'A') && (key <= 'Z'))
2114 if ((key >= 'a') && (key <= 'z') && control_keys[(int) (key - 'a')])
2116 (* control_keys[(int) (key - 'a')]) (old_editable, event->time);
2122 else if (event->state & GDK_MOD1_MASK)
2124 if ((key >= 'A') && (key <= 'Z'))
2127 if ((key >= 'a') && (key <= 'z') && alt_keys[(int) (key - 'a')])
2129 (* alt_keys[(int) (key - 'a')]) (old_editable, event->time);
2135 else if (event->length > 0)
2137 extend_selection = FALSE;
2139 gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
2140 position = text->point.index;
2141 gtk_editable_insert_text (GTK_EDITABLE (old_editable), event->string, event->length, &position);
2147 if (return_val && (old_editable->current_pos != initial_pos))
2149 if (extend_selection)
2151 if (old_editable->current_pos < old_editable->selection_start_pos)
2152 gtk_text_set_selection (old_editable, old_editable->current_pos,
2153 old_editable->selection_end_pos);
2154 else if (old_editable->current_pos > old_editable->selection_end_pos)
2155 gtk_text_set_selection (old_editable, old_editable->selection_start_pos,
2156 old_editable->current_pos);
2160 gtk_text_set_selection (old_editable, old_editable->current_pos,
2161 old_editable->selection_end_pos);
2163 gtk_text_set_selection (old_editable, old_editable->selection_start_pos,
2164 old_editable->current_pos);
2168 gtk_text_set_selection (old_editable, 0, 0);
2170 gtk_old_editable_claim_selection (old_editable,
2171 old_editable->selection_start_pos != old_editable->selection_end_pos,
2180 gtk_text_focus_in (GtkWidget *widget,
2181 GdkEventFocus *event)
2183 g_return_val_if_fail (widget != NULL, FALSE);
2184 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
2185 g_return_val_if_fail (event != NULL, FALSE);
2187 TDEBUG (("in gtk_text_focus_in\n"));
2189 return (* GTK_WIDGET_CLASS (parent_class)->focus_in_event) (widget, event);
2193 gtk_text_focus_out (GtkWidget *widget,
2194 GdkEventFocus *event)
2196 g_return_val_if_fail (widget != NULL, FALSE);
2197 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
2198 g_return_val_if_fail (event != NULL, FALSE);
2200 TDEBUG (("in gtk_text_focus_out\n"));
2202 return (* GTK_WIDGET_CLASS (parent_class)->focus_out_event) (widget, event);
2206 gtk_text_adjustment (GtkAdjustment *adjustment,
2209 g_return_if_fail (adjustment != NULL);
2210 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2211 g_return_if_fail (text != NULL);
2212 g_return_if_fail (GTK_IS_TEXT (text));
2214 /* Just ignore it if we haven't been size-allocated and realized yet */
2215 if (text->line_start_cache == NULL)
2218 if (adjustment == text->hadj)
2220 g_warning ("horizontal scrolling not implemented");
2224 gint diff = ((gint)adjustment->value) - text->last_ver_value;
2228 undraw_cursor (text, FALSE);
2231 scroll_down (text, diff);
2232 else /* if (diff < 0) */
2233 scroll_up (text, diff);
2235 draw_cursor (text, FALSE);
2237 text->last_ver_value = adjustment->value;
2243 gtk_text_adjustment_destroyed (GtkAdjustment *adjustment,
2246 g_return_if_fail (adjustment != NULL);
2247 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2248 g_return_if_fail (text != NULL);
2249 g_return_if_fail (GTK_IS_TEXT (text));
2251 if (adjustment == text->hadj)
2252 gtk_text_set_adjustments (text, NULL, text->vadj);
2253 if (adjustment == text->vadj)
2254 gtk_text_set_adjustments (text, text->hadj, NULL);
2258 static GtkPropertyMark
2259 find_this_line_start_mark (GtkText* text, guint point_position, const GtkPropertyMark* near)
2261 GtkPropertyMark mark;
2263 mark = find_mark_near (text, point_position, near);
2265 while (mark.index > 0 &&
2266 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
2267 decrement_mark (&mark);
2273 init_tab_cont (GtkText* text, PrevTabCont* tab_cont)
2275 tab_cont->pixel_offset = 0;
2276 tab_cont->tab_start.tab_stops = text->tab_stops;
2277 tab_cont->tab_start.to_next_tab = (gulong) text->tab_stops->data;
2279 if (!tab_cont->tab_start.to_next_tab)
2280 tab_cont->tab_start.to_next_tab = text->default_tab_width;
2284 line_params_iterate (GtkText* text,
2285 const GtkPropertyMark* mark0,
2286 const PrevTabCont* tab_mark0,
2289 LineIteratorFunction iter)
2290 /* mark0 MUST be a real line start. if ALLOC, allocate line params
2291 * from a mem chunk. DATA is passed to ITER_CALL, which is called
2292 * for each line following MARK, iteration continues unless ITER_CALL
2295 GtkPropertyMark mark = *mark0;
2296 PrevTabCont tab_conts[2];
2297 LineParams *lp, lpbuf;
2298 gint tab_cont_index = 0;
2301 tab_conts[0] = *tab_mark0;
2303 init_tab_cont (text, tab_conts);
2308 lp = g_chunk_new (LineParams, params_mem_chunk);
2312 *lp = find_line_params (text, &mark, tab_conts + tab_cont_index,
2313 tab_conts + (tab_cont_index + 1) % 2);
2315 if ((*iter) (text, lp, data))
2318 if (LAST_INDEX (text, lp->end))
2322 advance_mark (&mark);
2323 tab_cont_index = (tab_cont_index + 1) % 2;
2328 fetch_lines_iterator (GtkText* text, LineParams* lp, void* data)
2330 FetchLinesData *fldata = (FetchLinesData*) data;
2332 fldata->new_lines = g_list_prepend (fldata->new_lines, lp);
2334 switch (fldata->fl_type)
2336 case FetchLinesCount:
2337 if (!text->line_wrap || !lp->wraps)
2340 if (fldata->data >= fldata->data_max)
2344 case FetchLinesPixels:
2346 fldata->data += LINE_HEIGHT(*lp);
2348 if (fldata->data >= fldata->data_max)
2358 fetch_lines (GtkText* text,
2359 const GtkPropertyMark* mark0,
2360 const PrevTabCont* tab_cont0,
2364 FetchLinesData fl_data;
2366 fl_data.new_lines = NULL;
2368 fl_data.data_max = data;
2369 fl_data.fl_type = fl_type;
2371 line_params_iterate (text, mark0, tab_cont0, TRUE, &fl_data, fetch_lines_iterator);
2373 return g_list_reverse (fl_data.new_lines);
2377 fetch_lines_backward (GtkText* text)
2379 GList* new_lines = NULL, *new_line_start;
2380 GtkPropertyMark mark;
2382 if (CACHE_DATA(text->line_start_cache).start.index == 0)
2385 mark = find_this_line_start_mark (text,
2386 CACHE_DATA(text->line_start_cache).start.index - 1,
2387 &CACHE_DATA(text->line_start_cache).start);
2389 new_line_start = new_lines = fetch_lines (text, &mark, NULL, FetchLinesCount, 1);
2391 while (new_line_start->next)
2392 new_line_start = new_line_start->next;
2394 new_line_start->next = text->line_start_cache;
2395 text->line_start_cache->prev = new_line_start;
2399 fetch_lines_forward (GtkText* text, gint line_count)
2401 GtkPropertyMark mark;
2402 GList* line = text->line_start_cache;
2407 mark = CACHE_DATA(line).end;
2409 if (LAST_INDEX (text, mark))
2412 advance_mark(&mark);
2414 line->next = fetch_lines (text, &mark, &CACHE_DATA(line).tab_cont_next, FetchLinesCount, line_count);
2417 line->next->prev = line;
2420 /* Compute the number of lines, and vertical pixels for n characters
2421 * starting from the point
2424 compute_lines_pixels (GtkText* text, guint char_count,
2425 guint *lines, guint *pixels)
2427 GList *line = text->current_line;
2428 gint chars_left = char_count;
2433 /* If chars_left == 0, that means we're joining two lines in a
2434 * deletion, so add in the values for the next line as well
2436 for (; line && chars_left >= 0; line = line->next)
2438 *pixels += LINE_HEIGHT(CACHE_DATA(line));
2440 if (line == text->current_line)
2441 chars_left -= CACHE_DATA(line).end.index - text->point.index + 1;
2443 chars_left -= CACHE_DATA(line).end.index - CACHE_DATA(line).start.index + 1;
2445 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2449 chars_left = 0; /* force another loop */
2452 fetch_lines_forward (text, 1);
2457 total_line_height (GtkText* text, GList* line, gint line_count)
2461 for (; line && line_count > 0; line = line->next)
2463 height += LINE_HEIGHT(CACHE_DATA(line));
2465 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2469 fetch_lines_forward (text, line_count);
2476 swap_lines (GtkText* text, GList* old, GList* new, guint old_line_count)
2478 if (old == text->line_start_cache)
2482 for (; old_line_count > 0; old_line_count -= 1)
2484 while (text->line_start_cache &&
2486 CACHE_DATA(text->line_start_cache).wraps)
2487 remove_cache_line(text, text->line_start_cache);
2489 remove_cache_line(text, text->line_start_cache);
2492 last = g_list_last (new);
2494 last->next = text->line_start_cache;
2496 if (text->line_start_cache)
2497 text->line_start_cache->prev = last;
2499 text->line_start_cache = new;
2505 g_assert (old->prev);
2509 for (; old_line_count > 0; old_line_count -= 1)
2511 while (old && text->line_wrap && CACHE_DATA(old).wraps)
2512 old = remove_cache_line (text, old);
2514 old = remove_cache_line (text, old);
2520 last = g_list_last (new);
2530 correct_cache_delete (GtkText* text, gint nchars, gint lines)
2532 GList* cache = text->current_line;
2535 for (i = 0; cache && i < lines; i += 1, cache = cache->next)
2538 for (; cache; cache = cache->next)
2540 GtkPropertyMark *start = &CACHE_DATA(cache).start;
2541 GtkPropertyMark *end = &CACHE_DATA(cache).end;
2543 start->index -= nchars;
2544 end->index -= nchars;
2546 if (LAST_INDEX (text, text->point) &&
2547 start->index == text->point.index)
2548 *start = text->point;
2549 else if (start->property == text->point.property)
2550 start->offset = start->index - (text->point.index - text->point.offset);
2552 if (LAST_INDEX (text, text->point) &&
2553 end->index == text->point.index)
2555 if (end->property == text->point.property)
2556 end->offset = end->index - (text->point.index - text->point.offset);
2558 /*TEXT_ASSERT_MARK(text, start, "start");*/
2559 /*TEXT_ASSERT_MARK(text, end, "end");*/
2564 delete_expose (GtkText* text, guint nchars, guint old_lines, guint old_pixels)
2566 GtkWidget *widget = GTK_WIDGET (text);
2569 guint new_pixels = 0;
2571 GList* new_line = NULL;
2574 text->cursor_virtual_x = 0;
2576 correct_cache_delete (text, nchars, old_lines);
2578 pixel_height = pixel_height_of(text, text->current_line) -
2579 LINE_HEIGHT(CACHE_DATA(text->current_line));
2581 if (CACHE_DATA(text->current_line).start.index == text->point.index)
2582 CACHE_DATA(text->current_line).start = text->point;
2584 new_line = fetch_lines (text,
2585 &CACHE_DATA(text->current_line).start,
2586 &CACHE_DATA(text->current_line).tab_cont,
2590 swap_lines (text, text->current_line, new_line, old_lines);
2592 text->current_line = new_line;
2594 new_pixels = total_line_height (text, new_line, 1);
2596 gdk_window_get_size (text->text_area, &width, &height);
2598 if (old_pixels != new_pixels)
2600 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2602 gdk_draw_pixmap (text->text_area,
2606 pixel_height + old_pixels,
2608 pixel_height + new_pixels,
2612 text->vadj->upper += new_pixels;
2613 text->vadj->upper -= old_pixels;
2614 adjust_adj (text, text->vadj);
2618 rect.y = pixel_height;
2620 rect.height = new_pixels;
2622 expose_text (text, &rect, FALSE);
2623 gtk_text_draw_focus ( (GtkWidget *) text);
2625 text->cursor_mark = text->point;
2627 find_cursor (text, TRUE);
2629 if (old_pixels != new_pixels)
2631 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2634 rect.y = pixel_height + new_pixels;
2636 rect.height = height - rect.y;
2638 expose_text (text, &rect, FALSE);
2641 process_exposes (text);
2648 /* note, the point has already been moved forward */
2650 correct_cache_insert (GtkText* text, gint nchars)
2653 GtkPropertyMark *start;
2654 GtkPropertyMark *end;
2655 gboolean was_split = FALSE;
2657 /* We need to distinguish whether the property was split in the
2658 * insert or not, so we check if the point (which points after
2659 * the insertion here), points to the same character as the
2660 * point before. Ugh.
2664 GtkPropertyMark tmp_mark = text->point;
2665 move_mark_n (&tmp_mark, -1);
2667 if (tmp_mark.property != text->point.property)
2671 /* If we inserted a property exactly at the beginning of the
2672 * line, we have to correct here, or fetch_lines will
2675 start = &CACHE_DATA(text->current_line).start;
2677 /* Check if if we split exactly at the beginning of the line:
2678 * (was_split won't be set if we are inserting at the end of the text,
2679 * so we don't check)
2681 if (start->offset == MARK_CURRENT_PROPERTY (start)->length)
2682 SET_PROPERTY_MARK (start, start->property->next, 0);
2683 /* Check if we inserted a property at the beginning of the text: */
2684 else if (was_split &&
2685 (start->property == text->point.property) &&
2686 (start->index == text->point.index - nchars))
2687 SET_PROPERTY_MARK (start, start->property->prev, 0);
2689 /* Now correct the offsets, and check for start or end marks that
2690 * are after the point, yet point to a property before the point's
2691 * property. This indicates that they are meant to point to the
2692 * second half of a property we split in insert_text_property(), so
2693 * we fix them up that way.
2695 cache = text->current_line->next;
2697 for (; cache; cache = cache->next)
2699 start = &CACHE_DATA(cache).start;
2700 end = &CACHE_DATA(cache).end;
2702 if (LAST_INDEX (text, text->point) &&
2703 start->index == text->point.index)
2704 *start = text->point;
2705 else if (start->index >= text->point.index - nchars)
2707 if (!was_split && start->property == text->point.property)
2708 move_mark_n(start, nchars);
2711 if (start->property->next &&
2712 (start->property->next->next == text->point.property))
2714 g_assert (start->offset >= MARK_CURRENT_PROPERTY (start)->length);
2715 start->offset -= MARK_CURRENT_PROPERTY (start)->length;
2716 start->property = text->point.property;
2718 start->index += nchars;
2722 if (LAST_INDEX (text, text->point) &&
2723 end->index == text->point.index)
2725 if (end->index >= text->point.index - nchars)
2727 if (!was_split && end->property == text->point.property)
2728 move_mark_n(end, nchars);
2731 if (end->property->next &&
2732 (end->property->next->next == text->point.property))
2734 g_assert (end->offset >= MARK_CURRENT_PROPERTY (end)->length);
2735 end->offset -= MARK_CURRENT_PROPERTY (end)->length;
2736 end->property = text->point.property;
2738 end->index += nchars;
2742 /*TEXT_ASSERT_MARK(text, start, "start");*/
2743 /*TEXT_ASSERT_MARK(text, end, "end");*/
2749 insert_expose (GtkText* text, guint old_pixels, gint nchars,
2750 guint new_line_count)
2752 GtkWidget *widget = GTK_WIDGET (text);
2755 guint new_pixels = 0;
2757 GList* new_lines = NULL;
2760 text->cursor_virtual_x = 0;
2762 undraw_cursor (text, FALSE);
2764 correct_cache_insert (text, nchars);
2766 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2768 pixel_height = pixel_height_of(text, text->current_line) -
2769 LINE_HEIGHT(CACHE_DATA(text->current_line));
2771 new_lines = fetch_lines (text,
2772 &CACHE_DATA(text->current_line).start,
2773 &CACHE_DATA(text->current_line).tab_cont,
2777 swap_lines (text, text->current_line, new_lines, 1);
2779 text->current_line = new_lines;
2781 new_pixels = total_line_height (text, new_lines, new_line_count);
2783 gdk_window_get_size (text->text_area, &width, &height);
2785 if (old_pixels != new_pixels)
2787 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2789 gdk_draw_pixmap (text->text_area,
2793 pixel_height + old_pixels,
2795 pixel_height + new_pixels,
2797 height + (old_pixels - new_pixels) - pixel_height);
2800 text->vadj->upper += new_pixels;
2801 text->vadj->upper -= old_pixels;
2802 adjust_adj (text, text->vadj);
2806 rect.y = pixel_height;
2808 rect.height = new_pixels;
2810 expose_text (text, &rect, FALSE);
2811 gtk_text_draw_focus ( (GtkWidget *) text);
2813 text->cursor_mark = text->point;
2815 find_cursor (text, TRUE);
2817 draw_cursor (text, FALSE);
2819 if (old_pixels != new_pixels)
2821 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2824 rect.y = pixel_height + new_pixels;
2826 rect.height = height - rect.y;
2828 expose_text (text, &rect, FALSE);
2831 process_exposes (text);
2834 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2839 /* Text property functions */
2842 font_hash (gconstpointer font)
2844 return gdk_font_id ((const GdkFont*) font);
2847 static GHashTable *font_cache_table = NULL;
2850 get_text_font (GdkFont* gfont)
2855 if (!font_cache_table)
2856 font_cache_table = g_hash_table_new (font_hash, (GEqualFunc) gdk_font_equal);
2858 tf = g_hash_table_lookup (font_cache_table, gfont);
2866 tf = g_new (GtkTextFont, 1);
2869 tf->gdk_font = gfont;
2870 gdk_font_ref (gfont);
2872 for(i = 0; i < 256; i += 1)
2873 tf->char_widths[i] = gdk_char_width (gfont, (char)i);
2875 g_hash_table_insert (font_cache_table, gfont, tf);
2881 text_font_unref (GtkTextFont *text_font)
2883 text_font->ref_count--;
2884 if (text_font->ref_count == 0)
2886 g_hash_table_remove (font_cache_table, text_font->gdk_font);
2887 gdk_font_unref (text_font->gdk_font);
2893 text_properties_equal (TextProperty* prop, GdkFont* font, GdkColor *fore, GdkColor *back)
2895 if (prop->flags & PROPERTY_FONT)
2898 GtkTextFont *text_font;
2903 text_font = get_text_font (font);
2905 retval = (prop->font == text_font);
2906 text_font_unref (text_font);
2915 if (prop->flags & PROPERTY_FOREGROUND)
2917 if (!fore || !gdk_color_equal (&prop->fore_color, fore))
2924 if (prop->flags & PROPERTY_BACKGROUND)
2926 if (!back || !gdk_color_equal (&prop->back_color, back))
2937 realize_property (GtkText *text, TextProperty *prop)
2939 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2941 if (prop->flags & PROPERTY_FOREGROUND)
2942 gdk_colormap_alloc_color (colormap, &prop->fore_color, FALSE, FALSE);
2944 if (prop->flags & PROPERTY_BACKGROUND)
2945 gdk_colormap_alloc_color (colormap, &prop->back_color, FALSE, FALSE);
2949 realize_properties (GtkText *text)
2951 GList *tmp_list = text->text_properties;
2955 realize_property (text, tmp_list->data);
2957 tmp_list = tmp_list->next;
2962 unrealize_property (GtkText *text, TextProperty *prop)
2964 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2966 if (prop->flags & PROPERTY_FOREGROUND)
2967 gdk_colormap_free_colors (colormap, &prop->fore_color, 1);
2969 if (prop->flags & PROPERTY_BACKGROUND)
2970 gdk_colormap_free_colors (colormap, &prop->back_color, 1);
2974 unrealize_properties (GtkText *text)
2976 GList *tmp_list = text->text_properties;
2980 unrealize_property (text, tmp_list->data);
2982 tmp_list = tmp_list->next;
2986 static TextProperty*
2987 new_text_property (GtkText *text, GdkFont *font, GdkColor* fore,
2988 GdkColor* back, guint length)
2992 if (text_property_chunk == NULL)
2994 text_property_chunk = g_mem_chunk_new ("text property mem chunk",
2995 sizeof(TextProperty),
2996 1024*sizeof(TextProperty),
3000 prop = g_chunk_new(TextProperty, text_property_chunk);
3005 prop->flags |= PROPERTY_FONT;
3006 prop->font = get_text_font (font);
3013 prop->flags |= PROPERTY_FOREGROUND;
3014 prop->fore_color = *fore;
3019 prop->flags |= PROPERTY_BACKGROUND;
3020 prop->back_color = *back;
3023 prop->length = length;
3025 if (GTK_WIDGET_REALIZED (text))
3026 realize_property (text, prop);
3032 destroy_text_property (TextProperty *prop)
3035 text_font_unref (prop->font);
3037 g_mem_chunk_free (text_property_chunk, prop);
3040 /* Flop the memory between the point and the gap around like a
3043 move_gap (GtkText* text, guint index)
3045 if (text->gap_position < index)
3047 gint diff = index - text->gap_position;
3049 if (text->use_wchar)
3050 g_memmove (text->text.wc + text->gap_position,
3051 text->text.wc + text->gap_position + text->gap_size,
3052 diff*sizeof (GdkWChar));
3054 g_memmove (text->text.ch + text->gap_position,
3055 text->text.ch + text->gap_position + text->gap_size,
3058 text->gap_position = index;
3060 else if (text->gap_position > index)
3062 gint diff = text->gap_position - index;
3064 if (text->use_wchar)
3065 g_memmove (text->text.wc + index + text->gap_size,
3066 text->text.wc + index,
3067 diff*sizeof (GdkWChar));
3069 g_memmove (text->text.ch + index + text->gap_size,
3070 text->text.ch + index,
3073 text->gap_position = index;
3077 /* Increase the gap size. */
3079 make_forward_space (GtkText* text, guint len)
3081 if (text->gap_size < len)
3083 guint sum = MAX(2*len, MIN_GAP_SIZE) + text->text_end;
3085 if (sum >= text->text_len)
3089 while (i <= sum) i <<= 1;
3091 if (text->use_wchar)
3092 text->text.wc = (GdkWChar *)g_realloc(text->text.wc,
3093 i*sizeof(GdkWChar));
3095 text->text.ch = (guchar *)g_realloc(text->text.ch, i);
3099 if (text->use_wchar)
3100 g_memmove (text->text.wc + text->gap_position + text->gap_size + 2*len,
3101 text->text.wc + text->gap_position + text->gap_size,
3102 (text->text_end - (text->gap_position + text->gap_size))
3105 g_memmove (text->text.ch + text->gap_position + text->gap_size + 2*len,
3106 text->text.ch + text->gap_position + text->gap_size,
3107 text->text_end - (text->gap_position + text->gap_size));
3109 text->text_end += len*2;
3110 text->gap_size += len*2;
3114 /* Inserts into the text property list a list element that guarantees
3115 * that for len characters following the point, text has the correct
3116 * property. does not move point. adjusts text_properties_point and
3117 * text_properties_point_offset relative to the current value of
3120 insert_text_property (GtkText* text, GdkFont* font,
3121 GdkColor *fore, GdkColor* back, guint len)
3123 GtkPropertyMark *mark = &text->point;
3124 TextProperty* forward_prop = MARK_CURRENT_PROPERTY(mark);
3125 TextProperty* backward_prop = MARK_PREV_PROPERTY(mark);
3127 if (MARK_OFFSET(mark) == 0)
3129 /* Point is on the boundary of two properties.
3130 * If it is the same as either, grow, else insert
3133 if (text_properties_equal(forward_prop, font, fore, back))
3135 /* Grow the property in front of us. */
3137 MARK_PROPERTY_LENGTH(mark) += len;
3139 else if (backward_prop &&
3140 text_properties_equal(backward_prop, font, fore, back))
3142 /* Grow property behind us, point property and offset
3145 SET_PROPERTY_MARK (&text->point,
3146 MARK_PREV_LIST_PTR (mark),
3147 backward_prop->length);
3149 backward_prop->length += len;
3151 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3152 (forward_prop->length == 1))
3154 /* Next property just has last position, take it over */
3156 if (GTK_WIDGET_REALIZED (text))
3157 unrealize_property (text, forward_prop);
3159 forward_prop->flags = 0;
3162 forward_prop->flags |= PROPERTY_FONT;
3163 forward_prop->font = get_text_font (font);
3166 forward_prop->font = NULL;
3170 forward_prop->flags |= PROPERTY_FOREGROUND;
3171 forward_prop->fore_color = *fore;
3175 forward_prop->flags |= PROPERTY_BACKGROUND;
3176 forward_prop->back_color = *back;
3178 forward_prop->length += len;
3180 if (GTK_WIDGET_REALIZED (text))
3181 realize_property (text, forward_prop);
3185 /* Splice a new property into the list. */
3187 GList* new_prop = g_list_alloc();
3189 new_prop->next = MARK_LIST_PTR(mark);
3190 new_prop->prev = MARK_PREV_LIST_PTR(mark);
3191 new_prop->next->prev = new_prop;
3194 new_prop->prev->next = new_prop;
3196 new_prop->data = new_text_property (text, font, fore, back, len);
3198 SET_PROPERTY_MARK (mark, new_prop, 0);
3203 /* The following will screw up the line_start cache,
3204 * we'll fix it up in correct_cache_insert
3207 /* In the middle of forward_prop, if properties are equal,
3208 * just add to its length, else split it into two and splice
3210 if (text_properties_equal (forward_prop, font, fore, back))
3212 forward_prop->length += len;
3214 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3215 (MARK_OFFSET(mark) + 1 == forward_prop->length))
3217 /* Inserting before only the last position in the text */
3220 forward_prop->length -= 1;
3222 new_prop = g_list_alloc();
3223 new_prop->data = new_text_property (text, font, fore, back, len+1);
3224 new_prop->prev = MARK_LIST_PTR(mark);
3225 new_prop->next = NULL;
3226 MARK_NEXT_LIST_PTR(mark) = new_prop;
3228 SET_PROPERTY_MARK (mark, new_prop, 0);
3232 GList* new_prop = g_list_alloc();
3233 GList* new_prop_forward = g_list_alloc();
3234 gint old_length = forward_prop->length;
3235 GList* next = MARK_NEXT_LIST_PTR(mark);
3237 /* Set the new lengths according to where they are split. Construct
3238 * two new properties. */
3239 forward_prop->length = MARK_OFFSET(mark);
3241 new_prop_forward->data =
3242 new_text_property(text,
3243 forward_prop->flags & PROPERTY_FONT ?
3244 forward_prop->font->gdk_font : NULL,
3245 forward_prop->flags & PROPERTY_FOREGROUND ?
3246 &forward_prop->fore_color : NULL,
3247 forward_prop->flags & PROPERTY_BACKGROUND ?
3248 &forward_prop->back_color : NULL,
3249 old_length - forward_prop->length);
3251 new_prop->data = new_text_property(text, font, fore, back, len);
3253 /* Now splice things in. */
3254 MARK_NEXT_LIST_PTR(mark) = new_prop;
3255 new_prop->prev = MARK_LIST_PTR(mark);
3257 new_prop->next = new_prop_forward;
3258 new_prop_forward->prev = new_prop;
3260 new_prop_forward->next = next;
3263 next->prev = new_prop_forward;
3265 SET_PROPERTY_MARK (mark, new_prop, 0);
3269 while (text->text_properties_end->next)
3270 text->text_properties_end = text->text_properties_end->next;
3272 while (text->text_properties->prev)
3273 text->text_properties = text->text_properties->prev;
3277 delete_text_property (GtkText* text, guint nchars)
3279 /* Delete nchars forward from point. */
3281 /* Deleting text properties is problematical, because we
3282 * might be storing around marks pointing to a property.
3284 * The marks in question and how we handle them are:
3286 * point: We know the new value, since it will be at the
3287 * end of the deleted text, and we move it there
3289 * cursor: We just remove the mark and set it equal to the
3290 * point after the operation.
3291 * line-start cache: We replace most affected lines.
3292 * The current line gets used to fetch the new
3293 * lines so, if necessary, (delete at the beginning
3294 * of a line) we fix it up by setting it equal to the
3302 for(; nchars; nchars -= 1)
3304 prop = MARK_CURRENT_PROPERTY(&text->point);
3308 if (prop->length == 0)
3310 tmp = MARK_LIST_PTR (&text->point);
3312 is_first = tmp == text->text_properties;
3314 MARK_LIST_PTR (&text->point) = g_list_remove_link (tmp, tmp);
3315 text->point.offset = 0;
3317 if (GTK_WIDGET_REALIZED (text))
3318 unrealize_property (text, prop);
3320 destroy_text_property (prop);
3321 g_list_free_1 (tmp);
3323 prop = MARK_CURRENT_PROPERTY (&text->point);
3326 text->text_properties = MARK_LIST_PTR (&text->point);
3328 g_assert (prop->length != 0);
3330 else if (prop->length == text->point.offset)
3332 MARK_LIST_PTR (&text->point) = MARK_NEXT_LIST_PTR (&text->point);
3333 text->point.offset = 0;
3337 /* Check to see if we have just the single final position remaining
3338 * along in a property; if so, combine it with the previous property
3340 if (LAST_INDEX (text, text->point) &&
3341 (MARK_OFFSET (&text->point) == 0) &&
3342 (MARK_PREV_LIST_PTR(&text->point) != NULL))
3344 tmp = MARK_LIST_PTR (&text->point);
3345 prop = MARK_CURRENT_PROPERTY(&text->point);
3347 MARK_LIST_PTR (&text->point) = MARK_PREV_LIST_PTR (&text->point);
3348 MARK_CURRENT_PROPERTY(&text->point)->length += 1;
3349 MARK_NEXT_LIST_PTR(&text->point) = NULL;
3351 text->point.offset = MARK_CURRENT_PROPERTY(&text->point)->length - 1;
3353 if (GTK_WIDGET_REALIZED (text))
3354 unrealize_property (text, prop);
3356 destroy_text_property (prop);
3357 g_list_free_1 (tmp);
3362 init_properties (GtkText *text)
3364 if (!text->text_properties)
3366 text->text_properties = g_list_alloc();
3367 text->text_properties->next = NULL;
3368 text->text_properties->prev = NULL;
3369 text->text_properties->data = new_text_property (text, NULL, NULL, NULL, 1);
3370 text->text_properties_end = text->text_properties;
3372 SET_PROPERTY_MARK (&text->point, text->text_properties, 0);
3374 text->point.index = 0;
3379 /**********************************************************************/
3380 /* Property Movement */
3381 /**********************************************************************/
3384 move_mark_n (GtkPropertyMark* mark, gint n)
3387 advance_mark_n(mark, n);
3389 decrement_mark_n(mark, -n);
3393 advance_mark (GtkPropertyMark* mark)
3395 TextProperty* prop = MARK_CURRENT_PROPERTY (mark);
3399 if (prop->length > mark->offset + 1)
3403 mark->property = MARK_NEXT_LIST_PTR (mark);
3409 advance_mark_n (GtkPropertyMark* mark, gint n)
3416 i = 0; /* otherwise it migth not be init. */
3417 prop = MARK_CURRENT_PROPERTY(mark);
3419 if ((prop->length - mark->offset - 1) < n) { /* if we need to change prop. */
3420 /* to make it easier */
3421 n += (mark->offset);
3422 mark->index -= mark->offset;
3424 /* first we take seven-mile-leaps to get to the right text
3426 while ((n-i) > prop->length - 1) {
3428 mark->index += prop->length;
3429 mark->property = MARK_NEXT_LIST_PTR (mark);
3430 prop = MARK_CURRENT_PROPERTY (mark);
3434 /* and then the rest */
3435 mark->index += n - i;
3436 mark->offset += n - i;
3440 decrement_mark (GtkPropertyMark* mark)
3444 if (mark->offset > 0)
3448 mark->property = MARK_PREV_LIST_PTR (mark);
3449 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3454 decrement_mark_n (GtkPropertyMark* mark, gint n)
3458 while (mark->offset < n) {
3459 /* jump to end of prev */
3460 n -= mark->offset + 1;
3461 mark->index -= mark->offset + 1;
3462 mark->property = MARK_PREV_LIST_PTR (mark);
3463 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3471 static GtkPropertyMark
3472 find_mark (GtkText* text, guint mark_position)
3474 return find_mark_near (text, mark_position, &text->point);
3478 * You can also start from the end, what a drag.
3480 static GtkPropertyMark
3481 find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near)
3486 GtkPropertyMark mark;
3489 diffa = mark_position + 1;
3491 diffa = mark_position - near->index;
3493 diffb = mark_position;
3505 mark.property = text->text_properties;
3509 move_mark_n (&mark, mark_position - mark.index);
3514 /* This routine must be called with scroll == FALSE, only when
3515 * point is at least partially on screen
3519 find_line_containing_point (GtkText* text, guint point,
3525 text->current_line = NULL;
3529 /* Scroll backwards until the point is on screen
3531 while (CACHE_DATA(text->line_start_cache).start.index > point)
3532 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache)));
3534 /* Now additionally try to make sure that the point is fully on screen
3538 while (text->first_cut_pixels != 0 &&
3539 text->line_start_cache->next &&
3540 CACHE_DATA(text->line_start_cache->next).start.index > point)
3541 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache->next)));
3544 gdk_window_get_size (text->text_area, NULL, &height);
3546 for (cache = text->line_start_cache; cache; cache = cache->next)
3550 if (CACHE_DATA(cache).end.index >= point ||
3551 LAST_INDEX(text, CACHE_DATA(cache).end))
3553 text->current_line = cache; /* LOOK HERE, this proc has an
3554 * important side effect. */
3558 TEXT_SHOW_LINE (text, cache, "cache");
3560 if (cache->next == NULL)
3561 fetch_lines_forward (text, 1);
3565 lph = pixel_height_of (text, cache->next);
3567 /* Scroll the bottom of the line is on screen, or until
3568 * the line is the first onscreen line.
3570 while (cache->next != text->line_start_cache && lph > height)
3572 TEXT_SHOW_LINE (text, cache, "cache");
3573 TEXT_SHOW_LINE (text, cache->next, "cache->next");
3574 scroll_int (text, LINE_HEIGHT(CACHE_DATA(cache->next)));
3575 lph = pixel_height_of (text, cache->next);
3580 g_assert_not_reached (); /* Must set text->current_line here */
3584 pixel_height_of (GtkText* text, GList* cache_line)
3586 gint pixels = - text->first_cut_pixels;
3587 GList *cache = text->line_start_cache;
3590 pixels += LINE_HEIGHT (CACHE_DATA(cache));
3592 if (cache->data == cache_line->data)
3595 cache = cache->next;
3601 /**********************************************************************/
3602 /* Search and Placement */
3603 /**********************************************************************/
3606 find_char_width (GtkText* text, const GtkPropertyMark *mark, const TabStopMark *tab_mark)
3609 gint16* char_widths;
3611 if (LAST_INDEX (text, *mark))
3614 ch = GTK_TEXT_INDEX (text, mark->index);
3615 char_widths = MARK_CURRENT_TEXT_FONT (text, mark)->char_widths;
3619 return tab_mark->to_next_tab * char_widths[' '];
3623 return char_widths[ch];
3627 return gdk_char_width_wc(MARK_CURRENT_TEXT_FONT(text, mark)->gdk_font, ch);
3632 advance_tab_mark (GtkText* text, TabStopMark* tab_mark, GdkWChar ch)
3634 if (tab_mark->to_next_tab == 1 || ch == '\t')
3636 if (tab_mark->tab_stops->next)
3638 tab_mark->tab_stops = tab_mark->tab_stops->next;
3639 tab_mark->to_next_tab = (gulong) tab_mark->tab_stops->data;
3643 tab_mark->to_next_tab = text->default_tab_width;
3648 tab_mark->to_next_tab -= 1;
3653 advance_tab_mark_n (GtkText* text, TabStopMark* tab_mark, gint n)
3657 advance_tab_mark (text, tab_mark, 0);
3661 find_cursor_at_line (GtkText* text, const LineParams* start_line, gint pixel_height)
3665 GtkPropertyMark mark = start_line->start;
3666 TabStopMark tab_mark = start_line->tab_cont.tab_start;
3667 gint pixel_width = LINE_START_PIXEL (*start_line);
3669 while (mark.index < text->cursor_mark.index)
3671 pixel_width += find_char_width (text, &mark, &tab_mark);
3673 advance_tab_mark (text, &tab_mark, GTK_TEXT_INDEX(text, mark.index));
3674 advance_mark (&mark);
3677 text->cursor_pos_x = pixel_width;
3678 text->cursor_pos_y = pixel_height;
3679 text->cursor_char_offset = start_line->font_descent;
3680 text->cursor_mark = mark;
3682 ch = LAST_INDEX (text, mark) ?
3683 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3685 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
3686 text->cursor_char = 0;
3688 text->cursor_char = ch;
3692 find_cursor (GtkText* text, gboolean scroll)
3694 if (GTK_WIDGET_REALIZED (text))
3696 find_line_containing_point (text, text->cursor_mark.index, scroll);
3698 if (text->current_line)
3699 find_cursor_at_line (text,
3700 &CACHE_DATA(text->current_line),
3701 pixel_height_of(text, text->current_line));
3704 GTK_OLD_EDITABLE (text)->current_pos = text->cursor_mark.index;
3708 find_mouse_cursor_at_line (GtkText *text, const LineParams* lp,
3709 guint line_pixel_height,
3712 GtkPropertyMark mark = lp->start;
3713 TabStopMark tab_mark = lp->tab_cont.tab_start;
3715 gint char_width = find_char_width(text, &mark, &tab_mark);
3716 gint pixel_width = LINE_START_PIXEL (*lp) + (char_width+1)/2;
3718 text->cursor_pos_y = line_pixel_height;
3722 GdkWChar ch = LAST_INDEX (text, mark) ?
3723 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3725 if (button_x < pixel_width || mark.index == lp->end.index)
3727 text->cursor_pos_x = pixel_width - (char_width+1)/2;
3728 text->cursor_mark = mark;
3729 text->cursor_char_offset = lp->font_descent;
3731 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
3732 text->cursor_char = 0;
3734 text->cursor_char = ch;
3739 advance_tab_mark (text, &tab_mark, ch);
3740 advance_mark (&mark);
3742 pixel_width += char_width/2;
3744 char_width = find_char_width (text, &mark, &tab_mark);
3746 pixel_width += (char_width+1)/2;
3751 find_mouse_cursor (GtkText* text, gint x, gint y)
3754 GList* cache = text->line_start_cache;
3758 pixel_height = - text->first_cut_pixels;
3760 for (; cache; cache = cache->next)
3762 pixel_height += LINE_HEIGHT(CACHE_DATA(cache));
3764 if (y < pixel_height || !cache->next)
3766 find_mouse_cursor_at_line (text, &CACHE_DATA(cache), pixel_height, x);
3768 find_cursor (text, FALSE);
3775 /**********************************************************************/
3777 /**********************************************************************/
3780 free_cache (GtkText* text)
3782 GList* cache = text->line_start_cache;
3787 cache = cache->prev;
3789 text->line_start_cache = cache;
3792 for (; cache; cache = cache->next)
3793 g_mem_chunk_free (params_mem_chunk, cache->data);
3795 g_list_free (text->line_start_cache);
3797 text->line_start_cache = NULL;
3801 remove_cache_line (GtkText* text, GList* member)
3808 if (member == text->line_start_cache)
3809 text->line_start_cache = text->line_start_cache->next;
3812 member->prev->next = member->next;
3815 member->next->prev = member->prev;
3817 list = member->next;
3819 g_mem_chunk_free (params_mem_chunk, member->data);
3820 g_list_free_1 (member);
3825 /**********************************************************************/
3827 /**********************************************************************/
3830 move_cursor_buffer_ver (GtkText *text, int dir)
3832 undraw_cursor (text, FALSE);
3836 scroll_int (text, text->vadj->upper);
3837 text->cursor_mark = find_this_line_start_mark (text,
3839 &text->cursor_mark);
3843 scroll_int (text, - text->vadj->value);
3844 text->cursor_mark = find_this_line_start_mark (text,
3846 &text->cursor_mark);
3849 find_cursor (text, TRUE);
3850 draw_cursor (text, FALSE);
3854 move_cursor_page_ver (GtkText *text, int dir)
3856 scroll_int (text, dir * text->vadj->page_increment);
3860 move_cursor_ver (GtkText *text, int count)
3863 GtkPropertyMark mark;
3866 mark = find_this_line_start_mark (text, text->cursor_mark.index, &text->cursor_mark);
3867 offset = text->cursor_mark.index - mark.index;
3869 if (offset > text->cursor_virtual_x)
3870 text->cursor_virtual_x = offset;
3874 if (mark.index == 0)
3877 decrement_mark (&mark);
3878 mark = find_this_line_start_mark (text, mark.index, &mark);
3882 mark = text->cursor_mark;
3884 while (!LAST_INDEX(text, mark) && GTK_TEXT_INDEX(text, mark.index) != LINE_DELIM)
3885 advance_mark (&mark);
3887 if (LAST_INDEX(text, mark))
3890 advance_mark (&mark);
3893 for (i=0; i < text->cursor_virtual_x; i += 1, advance_mark(&mark))
3894 if (LAST_INDEX(text, mark) ||
3895 GTK_TEXT_INDEX(text, mark.index) == LINE_DELIM)
3898 undraw_cursor (text, FALSE);
3900 text->cursor_mark = mark;
3902 find_cursor (text, TRUE);
3904 draw_cursor (text, FALSE);
3908 move_cursor_hor (GtkText *text, int count)
3910 /* count should be +-1. */
3911 if ( (count > 0 && text->cursor_mark.index + count > TEXT_LENGTH(text)) ||
3912 (count < 0 && text->cursor_mark.index < (- count)) ||
3916 text->cursor_virtual_x = 0;
3918 undraw_cursor (text, FALSE);
3920 move_mark_n (&text->cursor_mark, count);
3922 find_cursor (text, TRUE);
3924 draw_cursor (text, FALSE);
3928 gtk_text_move_cursor (GtkOldEditable *old_editable,
3935 move_cursor_hor (GTK_TEXT (old_editable), 1);
3940 move_cursor_hor (GTK_TEXT (old_editable), -1);
3946 move_cursor_ver (GTK_TEXT (old_editable), 1);
3951 move_cursor_ver (GTK_TEXT (old_editable), -1);
3956 gtk_text_move_forward_character (GtkText *text)
3958 move_cursor_hor (text, 1);
3962 gtk_text_move_backward_character (GtkText *text)
3964 move_cursor_hor (text, -1);
3968 gtk_text_move_next_line (GtkText *text)
3970 move_cursor_ver (text, 1);
3974 gtk_text_move_previous_line (GtkText *text)
3976 move_cursor_ver (text, -1);
3980 gtk_text_move_word (GtkOldEditable *old_editable,
3986 gtk_text_move_forward_word (GTK_TEXT (old_editable));
3991 gtk_text_move_backward_word (GTK_TEXT (old_editable));
3996 gtk_text_move_forward_word (GtkText *text)
3998 text->cursor_virtual_x = 0;
4000 undraw_cursor (text, FALSE);
4002 if (text->use_wchar)
4004 while (!LAST_INDEX (text, text->cursor_mark) &&
4005 !gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
4006 advance_mark (&text->cursor_mark);
4008 while (!LAST_INDEX (text, text->cursor_mark) &&
4009 gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
4010 advance_mark (&text->cursor_mark);
4014 while (!LAST_INDEX (text, text->cursor_mark) &&
4015 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
4016 advance_mark (&text->cursor_mark);
4018 while (!LAST_INDEX (text, text->cursor_mark) &&
4019 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
4020 advance_mark (&text->cursor_mark);
4023 find_cursor (text, TRUE);
4024 draw_cursor (text, FALSE);
4028 gtk_text_move_backward_word (GtkText *text)
4030 text->cursor_virtual_x = 0;
4032 undraw_cursor (text, FALSE);
4034 if (text->use_wchar)
4036 while ((text->cursor_mark.index > 0) &&
4037 !gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4038 decrement_mark (&text->cursor_mark);
4040 while ((text->cursor_mark.index > 0) &&
4041 gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4042 decrement_mark (&text->cursor_mark);
4046 while ((text->cursor_mark.index > 0) &&
4047 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4048 decrement_mark (&text->cursor_mark);
4050 while ((text->cursor_mark.index > 0) &&
4051 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4052 decrement_mark (&text->cursor_mark);
4055 find_cursor (text, TRUE);
4056 draw_cursor (text, FALSE);
4060 gtk_text_move_page (GtkOldEditable *old_editable,
4065 scroll_int (GTK_TEXT (old_editable),
4066 y * GTK_TEXT(old_editable)->vadj->page_increment);
4070 gtk_text_move_to_row (GtkOldEditable *old_editable,
4076 gtk_text_move_to_column (GtkOldEditable *old_editable,
4081 text = GTK_TEXT (old_editable);
4083 text->cursor_virtual_x = 0; /* FIXME */
4085 undraw_cursor (text, FALSE);
4087 /* Move to the beginning of the line */
4088 while ((text->cursor_mark.index > 0) &&
4089 (GTK_TEXT_INDEX (text, text->cursor_mark.index - 1) != LINE_DELIM))
4090 decrement_mark (&text->cursor_mark);
4092 while (!LAST_INDEX (text, text->cursor_mark) &&
4093 (GTK_TEXT_INDEX (text, text->cursor_mark.index) != LINE_DELIM))
4097 else if (column == 0)
4100 advance_mark (&text->cursor_mark);
4103 find_cursor (text, TRUE);
4104 draw_cursor (text, FALSE);
4108 gtk_text_move_beginning_of_line (GtkText *text)
4110 gtk_text_move_to_column (GTK_OLD_EDITABLE (text), 0);
4115 gtk_text_move_end_of_line (GtkText *text)
4117 gtk_text_move_to_column (GTK_OLD_EDITABLE (text), -1);
4121 gtk_text_kill_char (GtkOldEditable *old_editable,
4126 text = GTK_TEXT (old_editable);
4128 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
4129 gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
4134 if (text->point.index + 1 <= TEXT_LENGTH (text))
4135 gtk_editable_delete_text (GTK_EDITABLE (old_editable), text->point.index, text->point.index + 1);
4139 if (text->point.index > 0)
4140 gtk_editable_delete_text (GTK_EDITABLE (old_editable), text->point.index - 1, text->point.index);
4146 gtk_text_delete_forward_character (GtkText *text)
4148 gtk_text_kill_char (GTK_OLD_EDITABLE (text), 1);
4152 gtk_text_delete_backward_character (GtkText *text)
4154 gtk_text_kill_char (GTK_OLD_EDITABLE (text), -1);
4158 gtk_text_kill_word (GtkOldEditable *old_editable,
4161 if (old_editable->selection_start_pos != old_editable->selection_end_pos)
4162 gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
4165 gint old_pos = old_editable->current_pos;
4168 gtk_text_move_word (old_editable, 1);
4169 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_pos, old_editable->current_pos);
4173 gtk_text_move_word (old_editable, -1);
4174 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_editable->current_pos, old_pos);
4180 gtk_text_delete_forward_word (GtkText *text)
4182 gtk_text_kill_word (GTK_OLD_EDITABLE (text), 1);
4186 gtk_text_delete_backward_word (GtkText *text)
4188 gtk_text_kill_word (GTK_OLD_EDITABLE (text), -1);
4192 gtk_text_kill_line (GtkOldEditable *old_editable,
4195 gint old_pos = old_editable->current_pos;
4198 gtk_text_move_to_column (old_editable, -1);
4199 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_pos, old_editable->current_pos);
4203 gtk_text_move_to_column (old_editable, 0);
4204 gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_editable->current_pos, old_pos);
4209 gtk_text_delete_line (GtkText *text)
4211 gtk_text_move_to_column (GTK_OLD_EDITABLE (text), 0);
4212 gtk_text_kill_line (GTK_OLD_EDITABLE (text), 1);
4216 gtk_text_delete_to_line_end (GtkText *text)
4218 gtk_text_kill_line (GTK_OLD_EDITABLE (text), 1);
4222 gtk_text_select_word (GtkText *text, guint32 time)
4227 GtkOldEditable *old_editable;
4228 old_editable = GTK_OLD_EDITABLE (text);
4230 gtk_text_move_backward_word (text);
4231 start_pos = text->cursor_mark.index;
4233 gtk_text_move_forward_word (text);
4234 end_pos = text->cursor_mark.index;
4236 old_editable->has_selection = TRUE;
4237 gtk_text_set_selection (old_editable, start_pos, end_pos);
4238 gtk_old_editable_claim_selection (old_editable, start_pos != end_pos, time);
4242 gtk_text_select_line (GtkText *text, guint32 time)
4247 GtkOldEditable *old_editable;
4248 old_editable = GTK_OLD_EDITABLE (text);
4250 gtk_text_move_beginning_of_line (text);
4251 start_pos = text->cursor_mark.index;
4253 gtk_text_move_end_of_line (text);
4254 gtk_text_move_forward_character (text);
4255 end_pos = text->cursor_mark.index;
4257 old_editable->has_selection = TRUE;
4258 gtk_text_set_selection (old_editable, start_pos, end_pos);
4259 gtk_old_editable_claim_selection (old_editable, start_pos != end_pos, time);
4262 /**********************************************************************/
4264 /**********************************************************************/
4267 adjust_adj (GtkText* text, GtkAdjustment* adj)
4271 gdk_window_get_size (text->text_area, NULL, &height);
4273 adj->step_increment = MIN (adj->upper, SCROLL_PIXELS);
4274 adj->page_increment = MIN (adj->upper, height - KEY_SCROLL_PIXELS);
4275 adj->page_size = MIN (adj->upper, height);
4276 adj->value = MIN (adj->value, adj->upper - adj->page_size);
4277 adj->value = MAX (adj->value, 0.0);
4279 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
4283 set_vertical_scroll_iterator (GtkText* text, LineParams* lp, void* data)
4285 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4287 if ((text->first_line_start_index >= lp->start.index) &&
4288 (text->first_line_start_index <= lp->end.index))
4290 svdata->mark = lp->start;
4292 if (text->first_line_start_index == lp->start.index)
4294 text->first_onscreen_ver_pixel = svdata->pixel_height + text->first_cut_pixels;
4298 text->first_onscreen_ver_pixel = svdata->pixel_height;
4299 text->first_cut_pixels = 0;
4302 text->vadj->value = text->first_onscreen_ver_pixel;
4305 svdata->pixel_height += LINE_HEIGHT (*lp);
4311 set_vertical_scroll_find_iterator (GtkText* text, LineParams* lp, void* data)
4313 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4316 if (svdata->pixel_height <= (gint) text->vadj->value &&
4317 svdata->pixel_height + LINE_HEIGHT(*lp) > (gint) text->vadj->value)
4319 svdata->mark = lp->start;
4321 text->first_cut_pixels = (gint)text->vadj->value - svdata->pixel_height;
4322 text->first_onscreen_ver_pixel = svdata->pixel_height;
4323 text->first_line_start_index = lp->start.index;
4329 svdata->pixel_height += LINE_HEIGHT (*lp);
4337 static GtkPropertyMark
4338 set_vertical_scroll (GtkText* text)
4340 GtkPropertyMark mark = find_mark (text, 0);
4341 SetVerticalScrollData data;
4345 data.pixel_height = 0;
4346 line_params_iterate (text, &mark, NULL, FALSE, &data, set_vertical_scroll_iterator);
4348 text->vadj->upper = data.pixel_height;
4349 orig_value = (gint) text->vadj->value;
4351 gdk_window_get_size (text->text_area, NULL, &height);
4353 text->vadj->step_increment = MIN (text->vadj->upper, SCROLL_PIXELS);
4354 text->vadj->page_increment = MIN (text->vadj->upper, height - KEY_SCROLL_PIXELS);
4355 text->vadj->page_size = MIN (text->vadj->upper, height);
4356 text->vadj->value = MIN (text->vadj->value, text->vadj->upper - text->vadj->page_size);
4357 text->vadj->value = MAX (text->vadj->value, 0.0);
4359 text->last_ver_value = (gint)text->vadj->value;
4361 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "changed");
4363 if (text->vadj->value != orig_value)
4365 /* We got clipped, and don't really know which line to put first. */
4366 data.pixel_height = 0;
4367 data.last_didnt_wrap = TRUE;
4369 line_params_iterate (text, &mark, NULL,
4371 set_vertical_scroll_find_iterator);
4378 scroll_int (GtkText* text, gint diff)
4382 text->vadj->value += diff;
4384 upper = text->vadj->upper - text->vadj->page_size;
4385 text->vadj->value = MIN (text->vadj->value, upper);
4386 text->vadj->value = MAX (text->vadj->value, 0.0);
4388 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "value_changed");
4392 process_exposes (GtkText *text)
4396 /* Make sure graphics expose events are processed before scrolling
4399 while ((event = gdk_event_get_graphics_expose (text->text_area)) != NULL)
4401 gtk_widget_send_expose (GTK_WIDGET (text), event);
4402 if (event->expose.count == 0)
4404 gdk_event_free (event);
4407 gdk_event_free (event);
4411 static gint last_visible_line_height (GtkText* text)
4413 GList *cache = text->line_start_cache;
4416 gdk_window_get_size (text->text_area, NULL, &height);
4418 for (; cache->next; cache = cache->next)
4419 if (pixel_height_of(text, cache->next) > height)
4423 return pixel_height_of(text, cache) - 1;
4428 static gint first_visible_line_height (GtkText* text)
4430 if (text->first_cut_pixels)
4431 return pixel_height_of(text, text->line_start_cache) + 1;
4437 scroll_down (GtkText* text, gint diff0)
4443 text->first_onscreen_ver_pixel += diff0;
4447 g_assert (text->line_start_cache);
4449 if (text->first_cut_pixels < LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1)
4451 text->first_cut_pixels += 1;
4455 text->first_cut_pixels = 0;
4457 text->line_start_cache = text->line_start_cache->next;
4459 text->first_line_start_index =
4460 CACHE_DATA(text->line_start_cache).start.index;
4462 if (!text->line_start_cache->next)
4463 fetch_lines_forward (text, 1);
4469 gdk_window_get_size (text->text_area, &width, &height);
4470 if (height > real_diff)
4471 gdk_draw_pixmap (text->text_area,
4479 height - real_diff);
4482 rect.y = MAX (0, height - real_diff);
4484 rect.height = MIN (height, real_diff);
4486 expose_text (text, &rect, FALSE);
4487 gtk_text_draw_focus ( (GtkWidget *) text);
4489 if (text->current_line)
4493 text->cursor_pos_y -= real_diff;
4494 cursor_min = drawn_cursor_min(text);
4497 find_mouse_cursor (text, text->cursor_pos_x,
4498 first_visible_line_height (text));
4501 if (height > real_diff)
4502 process_exposes (text);
4506 scroll_up (GtkText* text, gint diff0)
4512 text->first_onscreen_ver_pixel += diff0;
4516 g_assert (text->line_start_cache);
4518 if (text->first_cut_pixels > 0)
4520 text->first_cut_pixels -= 1;
4524 if (!text->line_start_cache->prev)
4525 fetch_lines_backward (text);
4527 text->line_start_cache = text->line_start_cache->prev;
4529 text->first_line_start_index =
4530 CACHE_DATA(text->line_start_cache).start.index;
4532 text->first_cut_pixels = LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1;
4538 gdk_window_get_size (text->text_area, &width, &height);
4539 if (height > real_diff)
4540 gdk_draw_pixmap (text->text_area,
4548 height - real_diff);
4553 rect.height = MIN (height, real_diff);
4555 expose_text (text, &rect, FALSE);
4556 gtk_text_draw_focus ( (GtkWidget *) text);
4558 if (text->current_line)
4563 text->cursor_pos_y += real_diff;
4564 cursor_max = drawn_cursor_max(text);
4565 gdk_window_get_size (text->text_area, NULL, &height);
4567 if (cursor_max >= height)
4568 find_mouse_cursor (text, text->cursor_pos_x,
4569 last_visible_line_height (text));
4572 if (height > real_diff)
4573 process_exposes (text);
4576 /**********************************************************************/
4578 /**********************************************************************/
4580 /* Assumes mark starts a line. Calculates the height, width, and
4581 * displayable character count of a single DISPLAYABLE line. That
4582 * means that in line-wrap mode, this does may not compute the
4583 * properties of an entire line. */
4585 find_line_params (GtkText* text,
4586 const GtkPropertyMark* mark,
4587 const PrevTabCont *tab_cont,
4588 PrevTabCont *next_cont)
4591 TabStopMark tab_mark = tab_cont->tab_start;
4592 guint max_display_pixels;
4597 gdk_window_get_size (text->text_area, (gint*) &max_display_pixels, NULL);
4598 max_display_pixels -= LINE_WRAP_ROOM;
4601 lp.tab_cont = *tab_cont;
4604 lp.pixel_width = tab_cont->pixel_offset;
4605 lp.displayable_chars = 0;
4607 lp.font_descent = 0;
4609 init_tab_cont (text, next_cont);
4611 while (!LAST_INDEX(text, lp.end))
4613 g_assert (lp.end.property);
4615 ch = GTK_TEXT_INDEX (text, lp.end.index);
4616 font = MARK_CURRENT_FONT (text, &lp.end);
4618 if (ch == LINE_DELIM)
4620 /* Newline doesn't count in computation of line height, even
4621 * if its in a bigger font than the rest of the line. Unless,
4622 * of course, there are no other characters. */
4624 if (!lp.font_ascent && !lp.font_descent)
4626 lp.font_ascent = font->ascent;
4627 lp.font_descent = font->descent;
4630 lp.tab_cont_next = *next_cont;
4635 ch_width = find_char_width (text, &lp.end, &tab_mark);
4637 if ((ch_width + lp.pixel_width > max_display_pixels) &&
4638 (lp.end.index > lp.start.index))
4642 if (text->line_wrap)
4644 next_cont->tab_start = tab_mark;
4645 next_cont->pixel_offset = 0;
4649 /* Here's the tough case, a tab is wrapping. */
4650 gint pixels_avail = max_display_pixels - lp.pixel_width;
4651 gint space_width = MARK_CURRENT_TEXT_FONT(text, &lp.end)->char_widths[' '];
4652 gint spaces_avail = pixels_avail / space_width;
4654 if (spaces_avail == 0)
4656 decrement_mark (&lp.end);
4660 advance_tab_mark (text, &next_cont->tab_start, '\t');
4661 next_cont->pixel_offset = space_width * (tab_mark.to_next_tab -
4663 lp.displayable_chars += 1;
4668 if (text->word_wrap)
4670 GtkPropertyMark saved_mark = lp.end;
4671 guint saved_characters = lp.displayable_chars;
4673 lp.displayable_chars += 1;
4675 if (text->use_wchar)
4677 while (!gdk_iswspace (GTK_TEXT_INDEX (text, lp.end.index)) &&
4678 (lp.end.index > lp.start.index))
4680 decrement_mark (&lp.end);
4681 lp.displayable_chars -= 1;
4686 while (!isspace(GTK_TEXT_INDEX (text, lp.end.index)) &&
4687 (lp.end.index > lp.start.index))
4689 decrement_mark (&lp.end);
4690 lp.displayable_chars -= 1;
4694 /* If whole line is one word, revert to char wrapping */
4695 if (lp.end.index == lp.start.index)
4697 lp.end = saved_mark;
4698 lp.displayable_chars = saved_characters;
4699 decrement_mark (&lp.end);
4704 /* Don't include this character, it will wrap. */
4705 decrement_mark (&lp.end);
4709 lp.tab_cont_next = *next_cont;
4716 lp.displayable_chars += 1;
4719 lp.font_ascent = MAX (font->ascent, lp.font_ascent);
4720 lp.font_descent = MAX (font->descent, lp.font_descent);
4721 lp.pixel_width += ch_width;
4723 advance_mark(&lp.end);
4724 advance_tab_mark (text, &tab_mark, ch);
4727 if (LAST_INDEX(text, lp.start))
4729 /* Special case, empty last line. */
4730 font = MARK_CURRENT_FONT (text, &lp.end);
4732 lp.font_ascent = font->ascent;
4733 lp.font_descent = font->descent;
4736 lp.tab_cont_next = *next_cont;
4742 expand_scratch_buffer (GtkText* text, guint len)
4744 if (len >= text->scratch_buffer_len)
4748 while (i <= len && i < MIN_GAP_SIZE) i <<= 1;
4750 if (text->use_wchar)
4752 if (text->scratch_buffer.wc)
4753 text->scratch_buffer.wc = g_new (GdkWChar, i);
4755 text->scratch_buffer.wc = g_realloc (text->scratch_buffer.wc,
4756 i*sizeof (GdkWChar));
4760 if (text->scratch_buffer.ch)
4761 text->scratch_buffer.ch = g_new (guchar, i);
4763 text->scratch_buffer.ch = g_realloc (text->scratch_buffer.ch, i);
4766 text->scratch_buffer_len = i;
4770 /* Side effect: modifies text->gc
4773 draw_bg_rect (GtkText* text, GtkPropertyMark *mark,
4774 gint x, gint y, gint width, gint height,
4775 gboolean already_cleared)
4777 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
4779 if ((mark->index >= MIN(old_editable->selection_start_pos, old_editable->selection_end_pos) &&
4780 mark->index < MAX(old_editable->selection_start_pos, old_editable->selection_end_pos)))
4782 gtk_paint_flat_box(GTK_WIDGET(text)->style, text->text_area,
4783 old_editable->has_selection ?
4784 GTK_STATE_SELECTED : GTK_STATE_ACTIVE,
4786 NULL, GTK_WIDGET(text), "text",
4787 x, y, width, height);
4789 else if (!gdk_color_equal(MARK_CURRENT_BACK (text, mark),
4790 >K_WIDGET(text)->style->base[GTK_WIDGET_STATE (text)]))
4792 gdk_gc_set_foreground (text->gc, MARK_CURRENT_BACK (text, mark));
4794 gdk_draw_rectangle (text->text_area,
4796 TRUE, x, y, width, height);
4798 else if (GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL])
4805 rect.height = height;
4807 clear_area (text, &rect);
4809 else if (!already_cleared)
4810 gdk_window_clear_area (text->text_area, x, y, width, height);
4814 draw_line (GtkText* text,
4815 gint pixel_start_height,
4818 GdkGCValues gc_values;
4821 guint running_offset = lp->tab_cont.pixel_offset;
4822 union { GdkWChar *wc; guchar *ch; } buffer;
4825 GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text);
4827 guint selection_start_pos = MIN (old_editable->selection_start_pos, old_editable->selection_end_pos);
4828 guint selection_end_pos = MAX (old_editable->selection_start_pos, old_editable->selection_end_pos);
4830 GtkPropertyMark mark = lp->start;
4831 TabStopMark tab_mark = lp->tab_cont.tab_start;
4832 gint pixel_height = pixel_start_height + lp->font_ascent;
4833 guint chars = lp->displayable_chars;
4835 /* First provide a contiguous segment of memory. This makes reading
4836 * the code below *much* easier, and only incurs the cost of copying
4837 * when the line being displayed spans the gap. */
4838 if (mark.index <= text->gap_position &&
4839 mark.index + chars > text->gap_position)
4841 expand_scratch_buffer (text, chars);
4843 if (text->use_wchar)
4845 for (i = 0; i < chars; i += 1)
4846 text->scratch_buffer.wc[i] = GTK_TEXT_INDEX(text, mark.index + i);
4847 buffer.wc = text->scratch_buffer.wc;
4851 for (i = 0; i < chars; i += 1)
4852 text->scratch_buffer.ch[i] = GTK_TEXT_INDEX(text, mark.index + i);
4853 buffer.ch = text->scratch_buffer.ch;
4858 if (text->use_wchar)
4860 if (mark.index >= text->gap_position)
4861 buffer.wc = text->text.wc + mark.index + text->gap_size;
4863 buffer.wc = text->text.wc + mark.index;
4867 if (mark.index >= text->gap_position)
4868 buffer.ch = text->text.ch + mark.index + text->gap_size;
4870 buffer.ch = text->text.ch + mark.index;
4875 if (running_offset > 0)
4877 draw_bg_rect (text, &mark, 0, pixel_start_height, running_offset,
4878 LINE_HEIGHT (*lp), TRUE);
4884 if ((text->use_wchar && buffer.wc[0] != '\t') ||
4885 (!text->use_wchar && buffer.ch[0] != '\t'))
4887 union { GdkWChar *wc; guchar *ch; } next_tab;
4892 if (text->use_wchar)
4893 for (i=0; i<chars; i++)
4895 if (buffer.wc[i] == '\t')
4897 next_tab.wc = buffer.wc + i;
4902 next_tab.ch = memchr (buffer.ch, '\t', chars);
4904 len = MIN (MARK_CURRENT_PROPERTY (&mark)->length - mark.offset, chars);
4906 if (text->use_wchar)
4909 len = MIN (len, next_tab.wc - buffer.wc);
4914 len = MIN (len, next_tab.ch - buffer.ch);
4917 if (mark.index < selection_start_pos)
4918 len = MIN (len, selection_start_pos - mark.index);
4919 else if (mark.index < selection_end_pos)
4920 len = MIN (len, selection_end_pos - mark.index);
4922 font = MARK_CURRENT_FONT (text, &mark);
4923 if (font->type == GDK_FONT_FONT)
4925 gdk_gc_set_font (text->gc, font);
4926 gdk_gc_get_values (text->gc, &gc_values);
4927 if (text->use_wchar)
4928 pixel_width = gdk_text_width_wc (gc_values.font,
4931 pixel_width = gdk_text_width (gc_values.font,
4936 if (text->use_wchar)
4937 pixel_width = gdk_text_width_wc (font, buffer.wc, len);
4939 pixel_width = gdk_text_width (font, buffer.ch, len);
4942 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4943 pixel_width, LINE_HEIGHT (*lp), TRUE);
4945 if ((mark.index >= selection_start_pos) &&
4946 (mark.index < selection_end_pos))
4948 if (old_editable->has_selection)
4949 fg_gc = GTK_WIDGET(text)->style->text_gc[GTK_STATE_SELECTED];
4951 fg_gc = GTK_WIDGET(text)->style->text_gc[GTK_STATE_ACTIVE];
4955 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &mark));
4959 if (text->use_wchar)
4960 gdk_draw_text_wc (text->text_area, MARK_CURRENT_FONT (text, &mark),
4967 gdk_draw_text (text->text_area, MARK_CURRENT_FONT (text, &mark),
4974 running_offset += pixel_width;
4976 advance_tab_mark_n (text, &tab_mark, len);
4980 gint pixels_remaining;
4986 gdk_window_get_size (text->text_area, &pixels_remaining, NULL);
4987 pixels_remaining -= (LINE_WRAP_ROOM + running_offset);
4989 space_width = MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
4991 spaces_avail = pixels_remaining / space_width;
4992 spaces_avail = MIN (spaces_avail, tab_mark.to_next_tab);
4994 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4995 spaces_avail * space_width, LINE_HEIGHT (*lp), TRUE);
4997 running_offset += tab_mark.to_next_tab *
4998 MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
5000 advance_tab_mark (text, &tab_mark, '\t');
5003 advance_mark_n (&mark, len);
5004 if (text->use_wchar)
5013 draw_line_wrap (GtkText* text, guint height /* baseline height */)
5020 if (text->line_wrap)
5022 bitmap = text->line_wrap_bitmap;
5023 bitmap_width = line_wrap_width;
5024 bitmap_height = line_wrap_height;
5028 bitmap = text->line_arrow_bitmap;
5029 bitmap_width = line_arrow_width;
5030 bitmap_height = line_arrow_height;
5033 gdk_window_get_size (text->text_area, &width, NULL);
5034 width -= LINE_WRAP_ROOM;
5036 gdk_gc_set_stipple (text->gc,
5039 gdk_gc_set_fill (text->gc, GDK_STIPPLED);
5041 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5043 gdk_gc_set_ts_origin (text->gc,
5045 height - bitmap_height - 1);
5047 gdk_draw_rectangle (text->text_area,
5051 height - bitmap_height - 1 /* one pixel above the baseline. */,
5055 gdk_gc_set_ts_origin (text->gc, 0, 0);
5057 gdk_gc_set_fill (text->gc, GDK_SOLID);
5061 undraw_cursor (GtkText* text, gint absolute)
5063 GtkOldEditable *old_editable = (GtkOldEditable *) text;
5065 TDEBUG (("in undraw_cursor\n"));
5068 text->cursor_drawn_level = 0;
5070 if ((text->cursor_drawn_level ++ == 0) &&
5071 (old_editable->selection_start_pos == old_editable->selection_end_pos) &&
5072 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5076 g_assert(text->cursor_mark.property);
5078 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5080 draw_bg_rect (text, &text->cursor_mark,
5082 text->cursor_pos_y - text->cursor_char_offset - font->ascent,
5083 1, font->ascent + 1, FALSE);
5085 if (text->cursor_char)
5087 if (font->type == GDK_FONT_FONT)
5088 gdk_gc_set_font (text->gc, font);
5090 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &text->cursor_mark));
5092 gdk_draw_text_wc (text->text_area, font,
5095 text->cursor_pos_y - text->cursor_char_offset,
5103 drawn_cursor_min (GtkText* text)
5107 g_assert(text->cursor_mark.property);
5109 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5111 return text->cursor_pos_y - text->cursor_char_offset - font->ascent;
5115 drawn_cursor_max (GtkText* text)
5119 g_assert(text->cursor_mark.property);
5121 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5123 return text->cursor_pos_y - text->cursor_char_offset;
5127 draw_cursor (GtkText* text, gint absolute)
5129 GtkOldEditable *old_editable = (GtkOldEditable *)text;
5131 TDEBUG (("in draw_cursor\n"));
5134 text->cursor_drawn_level = 1;
5136 if ((--text->cursor_drawn_level == 0) &&
5137 old_editable->editable &&
5138 (old_editable->selection_start_pos == old_editable->selection_end_pos) &&
5139 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5143 g_assert (text->cursor_mark.property);
5145 font = MARK_CURRENT_FONT (text, &text->cursor_mark);
5147 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5149 gdk_draw_line (text->text_area, text->gc, text->cursor_pos_x,
5150 text->cursor_pos_y - text->cursor_char_offset,
5152 text->cursor_pos_y - text->cursor_char_offset - font->ascent);
5157 create_bg_gc (GtkText *text)
5161 values.tile = GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL];
5162 values.fill = GDK_TILED;
5164 return gdk_gc_new_with_values (text->text_area, &values,
5165 GDK_GC_FILL | GDK_GC_TILE);
5169 clear_area (GtkText *text, GdkRectangle *area)
5171 GtkWidget *widget = GTK_WIDGET (text);
5177 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
5179 gdk_gc_set_ts_origin (text->bg_gc,
5180 (- text->first_onscreen_hor_pixel) % width,
5181 (- text->first_onscreen_ver_pixel) % height);
5183 gdk_draw_rectangle (text->text_area, text->bg_gc, TRUE,
5184 area->x, area->y, area->width, area->height);
5187 gdk_window_clear_area (text->text_area, area->x, area->y, area->width, area->height);
5191 expose_text (GtkText* text, GdkRectangle *area, gboolean cursor)
5193 GList *cache = text->line_start_cache;
5194 gint pixels = - text->first_cut_pixels;
5195 gint min_y = MAX (0, area->y);
5196 gint max_y = MAX (0, area->y + area->height);
5199 gdk_window_get_size (text->text_area, NULL, &height);
5200 max_y = MIN (max_y, height);
5202 TDEBUG (("in expose x=%d y=%d w=%d h=%d\n", area->x, area->y, area->width, area->height));
5204 clear_area (text, area);
5206 for (; pixels < height; cache = cache->next)
5208 if (pixels < max_y && (pixels + (gint)LINE_HEIGHT(CACHE_DATA(cache))) >= min_y)
5210 draw_line (text, pixels, &CACHE_DATA(cache));
5212 if (CACHE_DATA(cache).wraps)
5213 draw_line_wrap (text, pixels + CACHE_DATA(cache).font_ascent);
5216 if (cursor && GTK_WIDGET_HAS_FOCUS (text))
5218 if (CACHE_DATA(cache).start.index <= text->cursor_mark.index &&
5219 CACHE_DATA(cache).end.index >= text->cursor_mark.index)
5221 /* We undraw and draw the cursor here to get the drawn
5222 * level right ... FIXME - maybe the second parameter
5223 * of draw_cursor should work differently
5225 undraw_cursor (text, FALSE);
5226 draw_cursor (text, FALSE);
5230 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5234 fetch_lines_forward (text, 1);
5243 gtk_text_update_text (GtkOldEditable *old_editable,
5247 GtkText *text = GTK_TEXT (old_editable);
5249 GList *cache = text->line_start_cache;
5250 gint pixels = - text->first_cut_pixels;
5256 end_pos = TEXT_LENGTH (text);
5258 if (end_pos < start_pos)
5261 gdk_window_get_size (text->text_area, &width, &height);
5267 TDEBUG (("in expose span start=%d stop=%d\n", start_pos, end_pos));
5269 for (; pixels < height; cache = cache->next)
5271 if (CACHE_DATA(cache).start.index < end_pos)
5273 if (CACHE_DATA(cache).end.index >= start_pos)
5276 area.y = MAX(0,pixels);
5277 area.height = pixels + LINE_HEIGHT(CACHE_DATA(cache)) - area.y;
5283 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5287 fetch_lines_forward (text, 1);
5295 expose_text (text, &area, TRUE);
5299 recompute_geometry (GtkText* text)
5301 GtkPropertyMark mark, start_mark;
5308 mark = start_mark = set_vertical_scroll (text);
5310 /* We need a real start of a line when calling fetch_lines().
5311 * not the start of a wrapped line.
5313 while (mark.index > 0 &&
5314 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
5315 decrement_mark (&mark);
5317 gdk_window_get_size (text->text_area, &width, &height);
5319 /* Fetch an entire line, to make sure that we get all the text
5320 * we backed over above, in addition to enough text to fill up
5321 * the space vertically
5324 new_lines = fetch_lines (text,
5330 mark = CACHE_DATA (g_list_last (new_lines)).end;
5331 if (!LAST_INDEX (text, mark))
5333 advance_mark (&mark);
5335 new_lines = g_list_concat (new_lines,
5340 height + text->first_cut_pixels));
5343 /* Now work forward to the actual first onscreen line */
5345 while (CACHE_DATA (new_lines).start.index < start_mark.index)
5346 new_lines = new_lines->next;
5348 text->line_start_cache = new_lines;
5350 find_cursor (text, TRUE);
5353 /**********************************************************************/
5355 /**********************************************************************/
5358 gtk_text_set_selection (GtkOldEditable *old_editable,
5362 GtkText *text = GTK_TEXT (old_editable);
5364 guint start1, end1, start2, end2;
5367 end = TEXT_LENGTH (text);
5369 start1 = MIN(start,end);
5370 end1 = MAX(start,end);
5371 start2 = MIN(old_editable->selection_start_pos, old_editable->selection_end_pos);
5372 end2 = MAX(old_editable->selection_start_pos, old_editable->selection_end_pos);
5374 if (start2 < start1)
5378 tmp = start1; start1 = start2; start2 = tmp;
5379 tmp = end1; end1 = end2; end2 = tmp;
5382 undraw_cursor (text, FALSE);
5383 old_editable->selection_start_pos = start;
5384 old_editable->selection_end_pos = end;
5385 draw_cursor (text, FALSE);
5387 /* Expose only what changed */
5389 if (start1 < start2)
5390 gtk_text_update_text (old_editable, start1, MIN(end1, start2));
5393 gtk_text_update_text (old_editable, MAX(end1, start2), end2);
5394 else if (end2 < end1)
5395 gtk_text_update_text (old_editable, end2, end1);
5399 /**********************************************************************/
5401 /**********************************************************************/
5403 #ifdef DEBUG_GTK_TEXT
5405 gtk_text_show_cache_line (GtkText *text, GList *cache,
5406 const char* what, const char* func, gint line)
5408 LineParams *lp = &CACHE_DATA(cache);
5411 if (cache == text->line_start_cache)
5412 g_message ("Line Start Cache: ");
5414 if (cache == text->current_line)
5415 g_message("Current Line: ");
5417 g_message ("%s:%d: cache line %s s=%d,e=%d,lh=%d (",
5425 for (i = lp->start.index; i < (lp->end.index + lp->wraps); i += 1)
5426 g_message ("%c", GTK_TEXT_INDEX (text, i));
5432 gtk_text_show_cache (GtkText *text, const char* func, gint line)
5434 GList *l = text->line_start_cache;
5440 /* back up to the absolute beginning of the line cache */
5444 g_message ("*** line cache ***\n");
5445 for (; l; l = l->next)
5446 gtk_text_show_cache_line (text, l, "all", func, line);
5450 gtk_text_assert_mark (GtkText *text,
5451 GtkPropertyMark *mark,
5452 GtkPropertyMark *before,
5453 GtkPropertyMark *after,
5458 GtkPropertyMark correct_mark = find_mark (text, mark->index);
5460 if (mark->offset != correct_mark.offset ||
5461 mark->property != correct_mark.property)
5462 g_warning ("incorrect %s text property marker in %s:%d, index %d -- bad!", where, msg, line, mark->index);
5466 gtk_text_assert (GtkText *text,
5470 GList* cache = text->line_start_cache;
5471 GtkPropertyMark* before_mark = NULL;
5472 GtkPropertyMark* after_mark = NULL;
5474 gtk_text_show_props (text, msg, line);
5476 for (; cache->prev; cache = cache->prev)
5479 g_message ("*** line markers ***\n");
5481 for (; cache; cache = cache->next)
5483 after_mark = &CACHE_DATA(cache).end;
5484 gtk_text_assert_mark (text, &CACHE_DATA(cache).start, before_mark, after_mark, msg, "start", line);
5485 before_mark = &CACHE_DATA(cache).start;
5488 after_mark = &CACHE_DATA(cache->next).start;
5492 gtk_text_assert_mark (text, &CACHE_DATA(cache).end, before_mark, after_mark, msg, "end", line);
5493 before_mark = &CACHE_DATA(cache).end;
5498 gtk_text_show_adj (GtkText *text,
5504 g_message ("*** adjustment ***\n");
5506 g_message ("%s:%d: %s adjustment l=%.1f u=%.1f v=%.1f si=%.1f pi=%.1f ps=%.1f\n",
5513 adj->step_increment,
5514 adj->page_increment,
5519 gtk_text_show_props (GtkText *text,
5523 GList* props = text->text_properties;
5526 g_message ("%s:%d: ", msg, line);
5528 for (; props; props = props->next)
5530 TextProperty *p = (TextProperty*)props->data;
5532 proplen += p->length;
5534 g_message ("[%d,%p,", p->length, p);
5535 if (p->flags & PROPERTY_FONT)
5536 g_message ("%p,", p->font);
5539 if (p->flags & PROPERTY_FOREGROUND)
5540 g_message ("%ld, ", p->fore_color.pixel);
5543 if (p->flags & PROPERTY_BACKGROUND)
5544 g_message ("%ld] ", p->back_color.pixel);
5551 if (proplen - 1 != TEXT_LENGTH(text))
5552 g_warning ("incorrect property list length in %s:%d -- bad!", msg, line);