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 Library 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 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library 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 #include "gdk/gdkkeysyms.h"
26 #include "gtkselection.h"
27 #include "gtksignal.h"
29 #include "line-wrap.xbm"
30 #include "line-arrow.xbm"
33 #define INITIAL_BUFFER_SIZE 1024
34 #define INITIAL_LINE_CACHE_SIZE 256
35 #define MIN_GAP_SIZE 256
36 #define LINE_DELIM '\n'
37 #define MIN_TEXT_WIDTH_LINES 20
38 #define MIN_TEXT_HEIGHT_LINES 10
39 #define TEXT_BORDER_ROOM 1
40 #define LINE_WRAP_ROOM 8 /* The bitmaps are 6 wide. */
41 #define DEFAULT_TAB_STOP_WIDTH 4
42 #define SCROLL_PIXELS 5
43 #define KEY_SCROLL_PIXELS 10
44 #define SCROLL_TIME 100
45 #define FREEZE_LENGTH 1024
46 /* Freeze text when inserting or deleting more than this many characters */
48 #define SET_PROPERTY_MARK(m, p, o) do { \
49 (m)->property = (p); \
52 #define MARK_CURRENT_PROPERTY(mark) ((TextProperty*)(mark)->property->data)
53 #define MARK_NEXT_PROPERTY(mark) ((TextProperty*)(mark)->property->next->data)
54 #define MARK_PREV_PROPERTY(mark) ((TextProperty*)((mark)->property->prev ? \
55 (mark)->property->prev->data \
57 #define MARK_PREV_LIST_PTR(mark) ((mark)->property->prev)
58 #define MARK_LIST_PTR(mark) ((mark)->property)
59 #define MARK_NEXT_LIST_PTR(mark) ((mark)->property->next)
60 #define MARK_OFFSET(mark) ((mark)->offset)
61 #define MARK_PROPERTY_LENGTH(mark) (MARK_CURRENT_PROPERTY(mark)->length)
64 #define MARK_CURRENT_FONT(text, mark) \
65 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
66 MARK_CURRENT_PROPERTY(mark)->font->gdk_font : \
67 GTK_WIDGET (text)->style->font)
68 #define MARK_CURRENT_FORE(text, mark) \
69 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FOREGROUND) ? \
70 &MARK_CURRENT_PROPERTY(mark)->fore_color : \
71 &((GtkWidget *)text)->style->text[((GtkWidget *)text)->state])
72 #define MARK_CURRENT_BACK(text, mark) \
73 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_BACKGROUND) ? \
74 &MARK_CURRENT_PROPERTY(mark)->back_color : \
75 &((GtkWidget *)text)->style->base[((GtkWidget *)text)->state])
76 #define MARK_CURRENT_TEXT_FONT(text, mark) \
77 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
78 MARK_CURRENT_PROPERTY(mark)->font : \
81 #define TEXT_LENGTH(t) ((t)->text_end - (t)->gap_size)
82 #define FONT_HEIGHT(f) ((f)->ascent + (f)->descent)
83 #define LINE_HEIGHT(l) ((l).font_ascent + (l).font_descent)
84 #define LINE_CONTAINS(l, i) ((l).start.index <= (i) && (l).end.index >= (i))
85 #define LINE_STARTS_AT(l, i) ((l).start.index == (i))
86 #define LINE_START_PIXEL(l) ((l).tab_cont.pixel_offset)
87 #define LAST_INDEX(t, m) ((m).index == TEXT_LENGTH(t))
88 #define CACHE_DATA(c) (*(LineParams*)(c)->data)
98 typedef struct _TextProperty TextProperty;
99 typedef struct _TabStopMark TabStopMark;
100 typedef struct _PrevTabCont PrevTabCont;
101 typedef struct _FetchLinesData FetchLinesData;
102 typedef struct _LineParams LineParams;
103 typedef struct _SetVerticalScrollData SetVerticalScrollData;
105 typedef gint (*LineIteratorFunction) (GtkText* text, LineParams* lp, void* data);
113 struct _SetVerticalScrollData {
115 gint last_didnt_wrap;
116 gint last_line_start;
117 GtkPropertyMark mark;
122 /* The actual font. */
126 gint16 char_widths[256];
130 PROPERTY_FONT = 1 << 0,
131 PROPERTY_FOREGROUND = 1 << 1,
132 PROPERTY_BACKGROUND = 1 << 2
140 /* Background Color. */
143 /* Foreground Color. */
146 /* Show which properties are set */
147 TextPropertyFlags flags;
149 /* Length of this property. */
155 GList* tab_stops; /* Index into list containing the next tab position. If
156 * NULL, using default widths. */
163 TabStopMark tab_start;
166 struct _FetchLinesData
179 guint displayable_chars;
182 PrevTabCont tab_cont;
183 PrevTabCont tab_cont_next;
185 GtkPropertyMark start;
190 static void gtk_text_class_init (GtkTextClass *klass);
191 static void gtk_text_set_arg (GtkObject *object,
194 static void gtk_text_get_arg (GtkObject *object,
197 static void gtk_text_init (GtkText *text);
198 static void gtk_text_destroy (GtkObject *object);
199 static void gtk_text_finalize (GtkObject *object);
200 static void gtk_text_realize (GtkWidget *widget);
201 static void gtk_text_unrealize (GtkWidget *widget);
202 static void gtk_text_style_set (GtkWidget *widget,
203 GtkStyle *previous_style);
204 static void gtk_text_draw_focus (GtkWidget *widget);
205 static void gtk_text_size_request (GtkWidget *widget,
206 GtkRequisition *requisition);
207 static void gtk_text_size_allocate (GtkWidget *widget,
208 GtkAllocation *allocation);
209 static void gtk_text_adjustment (GtkAdjustment *adjustment,
211 static void gtk_text_disconnect (GtkAdjustment *adjustment,
214 static void gtk_text_insert_text (GtkEditable *editable,
215 const gchar *new_text,
216 gint new_text_length,
218 static void gtk_text_delete_text (GtkEditable *editable,
221 static void gtk_text_update_text (GtkEditable *editable,
224 static gchar *gtk_text_get_chars (GtkEditable *editable,
227 static void gtk_text_set_selection (GtkEditable *editable,
230 static void gtk_text_real_set_editable (GtkEditable *editable,
231 gboolean is_editable);
234 static void gtk_text_draw (GtkWidget *widget,
236 static gint gtk_text_expose (GtkWidget *widget,
237 GdkEventExpose *event);
238 static gint gtk_text_button_press (GtkWidget *widget,
239 GdkEventButton *event);
240 static gint gtk_text_button_release (GtkWidget *widget,
241 GdkEventButton *event);
242 static gint gtk_text_motion_notify (GtkWidget *widget,
243 GdkEventMotion *event);
244 static gint gtk_text_key_press (GtkWidget *widget,
246 static gint gtk_text_focus_in (GtkWidget *widget,
247 GdkEventFocus *event);
248 static gint gtk_text_focus_out (GtkWidget *widget,
249 GdkEventFocus *event);
251 static void move_gap_to_point (GtkText* text);
252 static void make_forward_space (GtkText* text, guint len);
254 /* Property management */
255 static GtkTextFont* get_text_font (GdkFont* gfont);
256 static void text_font_unref (GtkTextFont *text_font);
258 static void insert_text_property (GtkText* text, GdkFont* font,
259 GdkColor *fore, GdkColor* back, guint len);
260 static TextProperty* new_text_property (GtkText *text, GdkFont* font,
261 GdkColor* fore, GdkColor* back, guint length);
262 static void destroy_text_property (TextProperty *prop);
263 static void init_properties (GtkText *text);
264 static void realize_property (GtkText *text, TextProperty *prop);
265 static void realize_properties (GtkText *text);
266 static void unrealize_property (GtkText *text, TextProperty *prop);
267 static void unrealize_properties (GtkText *text);
269 static void delete_text_property (GtkText* text, guint len);
271 static guint pixel_height_of (GtkText* text, GList* cache_line);
273 /* Property Movement and Size Computations */
274 static void advance_mark (GtkPropertyMark* mark);
275 static void decrement_mark (GtkPropertyMark* mark);
276 static void advance_mark_n (GtkPropertyMark* mark, gint n);
277 static void decrement_mark_n (GtkPropertyMark* mark, gint n);
278 static void move_mark_n (GtkPropertyMark* mark, gint n);
279 static GtkPropertyMark find_mark (GtkText* text, guint mark_position);
280 static GtkPropertyMark find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near);
281 static void find_line_containing_point (GtkText* text, guint point,
285 static void compute_lines_pixels (GtkText* text, guint char_count,
286 guint *lines, guint *pixels);
288 static gint total_line_height (GtkText* text,
291 static LineParams find_line_params (GtkText* text,
292 const GtkPropertyMark *mark,
293 const PrevTabCont *tab_cont,
294 PrevTabCont *next_cont);
295 static void recompute_geometry (GtkText* text);
296 static void insert_expose (GtkText* text, guint old_pixels, gint nchars, guint new_line_count);
297 static void delete_expose (GtkText* text,
301 static void clear_area (GtkText *text, GdkRectangle *area);
302 static void draw_line (GtkText* text,
305 static void draw_line_wrap (GtkText* text,
307 static void draw_cursor (GtkText* text, gint absolute);
308 static void undraw_cursor (GtkText* text, gint absolute);
309 static gint drawn_cursor_min (GtkText* text);
310 static gint drawn_cursor_max (GtkText* text);
311 static void expose_text (GtkText* text, GdkRectangle *area, gboolean cursor);
313 /* Search and Placement. */
314 static void find_cursor (GtkText* text,
316 static void find_cursor_at_line (GtkText* text,
317 const LineParams* start_line,
319 static void find_mouse_cursor (GtkText* text, gint x, gint y);
322 static void adjust_adj (GtkText* text, GtkAdjustment* adj);
323 static void scroll_up (GtkText* text, gint diff);
324 static void scroll_down (GtkText* text, gint diff);
325 static void scroll_int (GtkText* text, gint diff);
327 static void process_exposes (GtkText *text);
329 /* Cache Management. */
330 static void free_cache (GtkText* text);
331 static GList* remove_cache_line (GtkText* text, GList* list);
334 static void move_cursor_buffer_ver (GtkText *text, int dir);
335 static void move_cursor_page_ver (GtkText *text, int dir);
336 static void move_cursor_ver (GtkText *text, int count);
337 static void move_cursor_hor (GtkText *text, int count);
339 /* Binding actions */
340 static void gtk_text_move_cursor (GtkEditable *editable,
343 static void gtk_text_move_word (GtkEditable *editable,
345 static void gtk_text_move_page (GtkEditable *editable,
348 static void gtk_text_move_to_row (GtkEditable *editable,
350 static void gtk_text_move_to_column (GtkEditable *editable,
352 static void gtk_text_kill_char (GtkEditable *editable,
354 static void gtk_text_kill_word (GtkEditable *editable,
356 static void gtk_text_kill_line (GtkEditable *editable,
360 static void gtk_text_move_forward_character (GtkText *text);
361 static void gtk_text_move_backward_character (GtkText *text);
362 static void gtk_text_move_forward_word (GtkText *text);
363 static void gtk_text_move_backward_word (GtkText *text);
364 static void gtk_text_move_beginning_of_line (GtkText *text);
365 static void gtk_text_move_end_of_line (GtkText *text);
366 static void gtk_text_move_next_line (GtkText *text);
367 static void gtk_text_move_previous_line (GtkText *text);
369 static void gtk_text_delete_forward_character (GtkText *text);
370 static void gtk_text_delete_backward_character (GtkText *text);
371 static void gtk_text_delete_forward_word (GtkText *text);
372 static void gtk_text_delete_backward_word (GtkText *text);
373 static void gtk_text_delete_line (GtkText *text);
374 static void gtk_text_delete_to_line_end (GtkText *text);
375 static void gtk_text_select_word (GtkText *text,
377 static void gtk_text_select_line (GtkText *text,
380 static void gtk_text_set_position (GtkEditable *editable,
383 /* #define DEBUG_GTK_TEXT */
385 #if defined(DEBUG_GTK_TEXT) && defined(__GNUC__)
386 /* Debugging utilities. */
387 static void gtk_text_assert_mark (GtkText *text,
388 GtkPropertyMark *mark,
389 GtkPropertyMark *before,
390 GtkPropertyMark *after,
395 static void gtk_text_assert (GtkText *text,
398 static void gtk_text_show_cache_line (GtkText *text, GList *cache,
399 const char* what, const char* func, gint line);
400 static void gtk_text_show_cache (GtkText *text, const char* func, gint line);
401 static void gtk_text_show_adj (GtkText *text,
406 static void gtk_text_show_props (GtkText* test,
410 #define TDEBUG(args) g_message args
411 #define TEXT_ASSERT(text) gtk_text_assert (text,__PRETTY_FUNCTION__,__LINE__)
412 #define TEXT_ASSERT_MARK(text,mark,msg) gtk_text_assert_mark (text,mark, \
413 __PRETTY_FUNCTION__,msg,__LINE__)
414 #define TEXT_SHOW(text) gtk_text_show_cache (text, __PRETTY_FUNCTION__,__LINE__)
415 #define TEXT_SHOW_LINE(text,line,msg) gtk_text_show_cache_line (text,line,msg,\
416 __PRETTY_FUNCTION__,__LINE__)
417 #define TEXT_SHOW_ADJ(text,adj,msg) gtk_text_show_adj (text,adj,msg, \
418 __PRETTY_FUNCTION__,__LINE__)
421 #define TEXT_ASSERT(text)
422 #define TEXT_ASSERT_MARK(text,mark,msg)
423 #define TEXT_SHOW(text)
424 #define TEXT_SHOW_LINE(text,line,msg)
425 #define TEXT_SHOW_ADJ(text,adj,msg)
428 /* Memory Management. */
429 static GMemChunk *params_mem_chunk = NULL;
430 static GMemChunk *text_property_chunk = NULL;
432 static GtkWidgetClass *parent_class = NULL;
435 static GtkTextFunction control_keys[26] =
437 (GtkTextFunction)gtk_text_move_beginning_of_line, /* a */
438 (GtkTextFunction)gtk_text_move_backward_character, /* b */
439 (GtkTextFunction)gtk_editable_copy_clipboard, /* c */
440 (GtkTextFunction)gtk_text_delete_forward_character, /* d */
441 (GtkTextFunction)gtk_text_move_end_of_line, /* e */
442 (GtkTextFunction)gtk_text_move_forward_character, /* f */
444 (GtkTextFunction)gtk_text_delete_backward_character, /* h */
447 (GtkTextFunction)gtk_text_delete_to_line_end, /* k */
450 (GtkTextFunction)gtk_text_move_next_line, /* n */
452 (GtkTextFunction)gtk_text_move_previous_line, /* p */
457 (GtkTextFunction)gtk_text_delete_line, /* u */
458 (GtkTextFunction)gtk_editable_paste_clipboard, /* v */
459 (GtkTextFunction)gtk_text_delete_backward_word, /* w */
460 (GtkTextFunction)gtk_editable_cut_clipboard, /* x */
465 static GtkTextFunction alt_keys[26] =
468 (GtkTextFunction)gtk_text_move_backward_word, /* b */
470 (GtkTextFunction)gtk_text_delete_forward_word, /* d */
472 (GtkTextFunction)gtk_text_move_forward_word, /* f */
496 /**********************************************************************/
498 /**********************************************************************/
501 gtk_text_get_type (void)
503 static GtkType text_type = 0;
507 GtkTypeInfo text_info =
511 sizeof (GtkTextClass),
512 (GtkClassInitFunc) gtk_text_class_init,
513 (GtkObjectInitFunc) gtk_text_init,
514 /* reserved_1 */ NULL,
515 /* reserved_2 */ NULL,
516 (GtkClassInitFunc) NULL,
519 text_type = gtk_type_unique (GTK_TYPE_EDITABLE, &text_info);
526 gtk_text_class_init (GtkTextClass *class)
528 GtkObjectClass *object_class;
529 GtkWidgetClass *widget_class;
530 GtkEditableClass *editable_class;
532 object_class = (GtkObjectClass*) class;
533 widget_class = (GtkWidgetClass*) class;
534 editable_class = (GtkEditableClass*) class;
535 parent_class = gtk_type_class (GTK_TYPE_EDITABLE);
537 gtk_object_add_arg_type ("GtkText::hadjustment",
539 GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
541 gtk_object_add_arg_type ("GtkText::vadjustment",
543 GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
545 gtk_object_add_arg_type ("GtkText::line_wrap",
549 gtk_object_add_arg_type ("GtkText::word_wrap",
554 object_class->set_arg = gtk_text_set_arg;
555 object_class->get_arg = gtk_text_get_arg;
556 object_class->destroy = gtk_text_destroy;
557 object_class->finalize = gtk_text_finalize;
559 widget_class->realize = gtk_text_realize;
560 widget_class->unrealize = gtk_text_unrealize;
561 widget_class->style_set = gtk_text_style_set;
562 widget_class->draw_focus = gtk_text_draw_focus;
563 widget_class->size_request = gtk_text_size_request;
564 widget_class->size_allocate = gtk_text_size_allocate;
565 widget_class->draw = gtk_text_draw;
566 widget_class->expose_event = gtk_text_expose;
567 widget_class->button_press_event = gtk_text_button_press;
568 widget_class->button_release_event = gtk_text_button_release;
569 widget_class->motion_notify_event = gtk_text_motion_notify;
570 widget_class->key_press_event = gtk_text_key_press;
571 widget_class->focus_in_event = gtk_text_focus_in;
572 widget_class->focus_out_event = gtk_text_focus_out;
574 widget_class->scroll_adjustments_signal =
575 gtk_signal_new ("scroll_adjustments",
578 GTK_SIGNAL_OFFSET (GtkTextClass, scroll_adjustments),
579 gtk_marshal_NONE__POINTER_POINTER,
580 GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
582 editable_class->set_editable = gtk_text_real_set_editable;
583 editable_class->insert_text = gtk_text_insert_text;
584 editable_class->delete_text = gtk_text_delete_text;
586 editable_class->move_cursor = gtk_text_move_cursor;
587 editable_class->move_word = gtk_text_move_word;
588 editable_class->move_page = gtk_text_move_page;
589 editable_class->move_to_row = gtk_text_move_to_row;
590 editable_class->move_to_column = gtk_text_move_to_column;
592 editable_class->kill_char = gtk_text_kill_char;
593 editable_class->kill_word = gtk_text_kill_word;
594 editable_class->kill_line = gtk_text_kill_line;
596 editable_class->update_text = gtk_text_update_text;
597 editable_class->get_chars = gtk_text_get_chars;
598 editable_class->set_selection = gtk_text_set_selection;
599 editable_class->set_position = gtk_text_set_position;
601 class->scroll_adjustments = gtk_text_set_adjustments;
605 gtk_text_set_arg (GtkObject *object,
611 text = GTK_TEXT (object);
615 case ARG_HADJUSTMENT:
616 gtk_text_set_adjustments (text,
617 GTK_VALUE_POINTER (*arg),
620 case ARG_VADJUSTMENT:
621 gtk_text_set_adjustments (text,
623 GTK_VALUE_POINTER (*arg));
626 gtk_text_set_line_wrap (text, GTK_VALUE_BOOL (*arg));
629 gtk_text_set_word_wrap (text, GTK_VALUE_BOOL (*arg));
637 gtk_text_get_arg (GtkObject *object,
643 text = GTK_TEXT (object);
647 case ARG_HADJUSTMENT:
648 GTK_VALUE_POINTER (*arg) = text->hadj;
650 case ARG_VADJUSTMENT:
651 GTK_VALUE_POINTER (*arg) = text->vadj;
654 GTK_VALUE_BOOL (*arg) = text->line_wrap;
657 GTK_VALUE_BOOL (*arg) = text->word_wrap;
660 arg->type = GTK_TYPE_INVALID;
666 gtk_text_init (GtkText *text)
668 GTK_WIDGET_SET_FLAGS (text, GTK_CAN_FOCUS);
670 text->text_area = NULL;
674 text->line_wrap_bitmap = NULL;
675 text->line_arrow_bitmap = NULL;
677 text->text = g_new (guchar, INITIAL_BUFFER_SIZE);
678 text->text_len = INITIAL_BUFFER_SIZE;
680 if (!params_mem_chunk)
681 params_mem_chunk = g_mem_chunk_new ("LineParams",
683 256 * sizeof (LineParams),
686 text->default_tab_width = 4;
687 text->tab_stops = NULL;
689 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
690 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
692 text->line_start_cache = NULL;
693 text->first_cut_pixels = 0;
695 text->line_wrap = TRUE;
696 text->word_wrap = FALSE;
701 text->current_font = NULL;
703 init_properties (text);
705 GTK_EDITABLE (text)->editable = FALSE;
707 gtk_editable_set_position (GTK_EDITABLE (text), 0);
711 gtk_text_new (GtkAdjustment *hadj,
717 g_return_val_if_fail (GTK_IS_ADJUSTMENT (hadj), NULL);
719 g_return_val_if_fail (GTK_IS_ADJUSTMENT (vadj), NULL);
721 text = gtk_widget_new (GTK_TYPE_TEXT,
730 gtk_text_set_word_wrap (GtkText *text,
733 g_return_if_fail (text != NULL);
734 g_return_if_fail (GTK_IS_TEXT (text));
736 text->word_wrap = (word_wrap != FALSE);
738 if (GTK_WIDGET_REALIZED (text))
740 recompute_geometry (text);
741 gtk_widget_queue_draw (GTK_WIDGET (text));
746 gtk_text_set_line_wrap (GtkText *text,
749 g_return_if_fail (text != NULL);
750 g_return_if_fail (GTK_IS_TEXT (text));
752 text->line_wrap = (line_wrap != FALSE);
754 if (GTK_WIDGET_REALIZED (text))
756 recompute_geometry (text);
757 gtk_widget_queue_draw (GTK_WIDGET (text));
762 gtk_text_set_editable (GtkText *text,
763 gboolean is_editable)
765 g_return_if_fail (text != NULL);
766 g_return_if_fail (GTK_IS_TEXT (text));
768 gtk_editable_set_editable (GTK_EDITABLE (text), is_editable);
772 gtk_text_real_set_editable (GtkEditable *editable,
773 gboolean is_editable)
777 g_return_if_fail (editable != NULL);
778 g_return_if_fail (GTK_IS_TEXT (editable));
780 text = GTK_TEXT (editable);
782 editable->editable = (is_editable != FALSE);
785 draw_cursor (text, TRUE);
787 undraw_cursor (text, TRUE);
791 gtk_text_set_adjustments (GtkText *text,
795 g_return_if_fail (text != NULL);
796 g_return_if_fail (GTK_IS_TEXT (text));
798 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
800 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
802 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
804 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
806 if (text->hadj && (text->hadj != hadj))
808 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
809 gtk_object_unref (GTK_OBJECT (text->hadj));
812 if (text->vadj && (text->vadj != vadj))
814 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
815 gtk_object_unref (GTK_OBJECT (text->vadj));
818 if (text->hadj != hadj)
821 gtk_object_ref (GTK_OBJECT (text->hadj));
822 gtk_object_sink (GTK_OBJECT (text->hadj));
824 gtk_signal_connect (GTK_OBJECT (text->hadj), "changed",
825 (GtkSignalFunc) gtk_text_adjustment,
827 gtk_signal_connect (GTK_OBJECT (text->hadj), "value_changed",
828 (GtkSignalFunc) gtk_text_adjustment,
830 gtk_signal_connect (GTK_OBJECT (text->hadj), "disconnect",
831 (GtkSignalFunc) gtk_text_disconnect,
833 gtk_text_adjustment (hadj, text);
836 if (text->vadj != vadj)
839 gtk_object_ref (GTK_OBJECT (text->vadj));
840 gtk_object_sink (GTK_OBJECT (text->vadj));
842 gtk_signal_connect (GTK_OBJECT (text->vadj), "changed",
843 (GtkSignalFunc) gtk_text_adjustment,
845 gtk_signal_connect (GTK_OBJECT (text->vadj), "value_changed",
846 (GtkSignalFunc) gtk_text_adjustment,
848 gtk_signal_connect (GTK_OBJECT (text->vadj), "disconnect",
849 (GtkSignalFunc) gtk_text_disconnect,
851 gtk_text_adjustment (vadj, text);
856 gtk_text_set_point (GtkText *text,
859 g_return_if_fail (text != NULL);
860 g_return_if_fail (GTK_IS_TEXT (text));
861 g_return_if_fail (index <= TEXT_LENGTH (text));
863 text->point = find_mark (text, index);
867 gtk_text_get_point (GtkText *text)
869 g_return_val_if_fail (text != NULL, 0);
870 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
872 return text->point.index;
876 gtk_text_get_length (GtkText *text)
878 g_return_val_if_fail (text != NULL, 0);
879 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
881 return TEXT_LENGTH (text);
885 gtk_text_freeze (GtkText *text)
887 g_return_if_fail (text != NULL);
888 g_return_if_fail (GTK_IS_TEXT (text));
894 gtk_text_thaw (GtkText *text)
896 g_return_if_fail (text != NULL);
897 g_return_if_fail (GTK_IS_TEXT (text));
899 text->freeze = FALSE;
901 if (GTK_WIDGET_REALIZED (text))
903 recompute_geometry (text);
904 gtk_widget_queue_draw (GTK_WIDGET (text));
909 gtk_text_insert (GtkText *text,
916 GtkEditable *editable = GTK_EDITABLE (text);
917 gboolean frozen = FALSE;
919 gint new_line_count = 1;
920 guint old_height = 0;
924 g_return_if_fail (text != NULL);
925 g_return_if_fail (GTK_IS_TEXT (text));
928 length = strlen (chars);
935 if (!text->freeze && (length > FREEZE_LENGTH))
937 gtk_text_freeze (text);
941 if (!text->freeze && (text->line_start_cache != NULL))
943 find_line_containing_point (text, text->point.index, TRUE);
944 old_height = total_line_height (text, text->current_line, 1);
945 for (i=0; i<length; i++)
946 if (chars[i] == '\n')
950 if (text->point.index < text->first_line_start_index)
951 text->first_line_start_index += length;
953 if (text->point.index < editable->selection_start_pos)
954 editable->selection_start_pos += length;
955 if (text->point.index < editable->selection_end_pos)
956 editable->selection_end_pos += length;
957 /* We'll reset the cursor later anyways if we aren't frozen */
958 if (text->point.index < text->cursor_mark.index)
959 text->cursor_mark.index += length;
961 move_gap_to_point (text);
963 make_forward_space (text, length);
964 memcpy (text->text + text->gap_position, chars, length);
966 insert_text_property (text, font, fore, back, length);
968 text->gap_size -= length;
969 text->gap_position += length;
971 advance_mark_n (&text->point, length);
973 if (!text->freeze && (text->line_start_cache != NULL))
974 insert_expose (text, old_height, length, new_line_count);
977 gtk_text_thaw (text);
981 gtk_text_backward_delete (GtkText *text,
984 g_return_val_if_fail (text != NULL, 0);
985 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
987 if (nchars > text->point.index || nchars <= 0)
990 gtk_text_set_point (text, text->point.index - nchars);
992 return gtk_text_forward_delete (text, nchars);
996 gtk_text_forward_delete (GtkText *text,
999 guint old_lines, old_height;
1000 GtkEditable *editable = GTK_EDITABLE (text);
1001 gboolean frozen = FALSE;
1003 g_return_val_if_fail (text != NULL, 0);
1004 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
1006 if (text->point.index + nchars > TEXT_LENGTH (text) || nchars <= 0)
1009 if (!text->freeze && (nchars > FREEZE_LENGTH))
1011 gtk_text_freeze (text);
1015 if (!text->freeze && (text->line_start_cache != NULL))
1017 /* We need to undraw the cursor here, since we may later
1018 * delete the cursor's property
1020 undraw_cursor (text, FALSE);
1021 find_line_containing_point (text, text->point.index, TRUE);
1022 compute_lines_pixels (text, nchars, &old_lines, &old_height);
1025 /* FIXME, or resizing after deleting will be odd */
1026 if (text->point.index < text->first_line_start_index)
1028 if (text->point.index + nchars >= text->first_line_start_index)
1030 text->first_line_start_index = text->point.index;
1031 while ((text->first_line_start_index > 0) &&
1032 (GTK_TEXT_INDEX (text, text->first_line_start_index - 1) != LINE_DELIM))
1033 text->first_line_start_index -= 1;
1037 text->first_line_start_index -= nchars;
1040 if (text->point.index < editable->selection_start_pos)
1041 editable->selection_start_pos -=
1042 MIN(nchars, editable->selection_start_pos - text->point.index);
1043 if (text->point.index < editable->selection_end_pos)
1044 editable->selection_end_pos -=
1045 MIN(nchars, editable->selection_end_pos - text->point.index);
1046 /* We'll reset the cursor later anyways if we aren't frozen */
1047 if (text->point.index < text->cursor_mark.index)
1048 move_mark_n (&text->cursor_mark,
1049 -MIN(nchars, text->cursor_mark.index - text->point.index));
1051 move_gap_to_point (text);
1053 text->gap_size += nchars;
1055 delete_text_property (text, nchars);
1057 if (!text->freeze && (text->line_start_cache != NULL))
1059 delete_expose (text, nchars, old_lines, old_height);
1060 draw_cursor (text, FALSE);
1064 gtk_text_thaw (text);
1070 gtk_text_set_position (GtkEditable *editable,
1073 GtkText *text = (GtkText *) editable;
1075 undraw_cursor (text, FALSE);
1076 text->cursor_mark = find_mark (text, position);
1077 find_cursor (text, TRUE);
1078 draw_cursor (text, FALSE);
1079 gtk_editable_select_region (editable, 0, 0);
1083 gtk_text_get_chars (GtkEditable *editable,
1093 g_return_val_if_fail (editable != NULL, NULL);
1094 g_return_val_if_fail (GTK_IS_TEXT (editable), NULL);
1095 text = GTK_TEXT (editable);
1098 end_pos = TEXT_LENGTH (text);
1100 if ((start_pos < 0) ||
1101 (end_pos > TEXT_LENGTH (text)) ||
1102 (end_pos < start_pos))
1105 nchars = end_pos - start_pos;
1107 retval = g_new (gchar, nchars+1);
1110 if (start_pos < text->gap_position)
1112 n = MIN (text->gap_position - start_pos, nchars);
1113 memcpy (p, &text->text[start_pos], n);
1119 if (start_pos+nchars >= text->gap_position)
1122 text->text + MAX (text->gap_position + text->gap_size,
1123 start_pos + text->gap_size),
1135 gtk_text_destroy (GtkObject *object)
1139 g_return_if_fail (object != NULL);
1140 g_return_if_fail (GTK_IS_TEXT (object));
1142 text = (GtkText*) object;
1144 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
1145 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
1149 gtk_timeout_remove (text->timer);
1153 GTK_OBJECT_CLASS(parent_class)->destroy (object);
1157 gtk_text_finalize (GtkObject *object)
1162 g_return_if_fail (object != NULL);
1163 g_return_if_fail (GTK_IS_TEXT (object));
1165 text = (GtkText *)object;
1167 gtk_object_unref (GTK_OBJECT (text->hadj));
1168 gtk_object_unref (GTK_OBJECT (text->vadj));
1170 /* Clean up the internal structures */
1171 g_free (text->text);
1174 tmp_list = text->text_properties;
1177 destroy_text_property (tmp_list->data);
1178 tmp_list = tmp_list->next;
1181 if (text->current_font)
1182 text_font_unref (text->current_font);
1184 g_list_free (text->text_properties);
1186 if (text->scratch_buffer)
1187 g_free (text->scratch_buffer);
1189 g_list_free (text->tab_stops);
1191 GTK_OBJECT_CLASS(parent_class)->finalize (object);
1195 gtk_text_realize (GtkWidget *widget)
1198 GtkEditable *editable;
1199 GdkWindowAttr attributes;
1200 gint attributes_mask;
1202 g_return_if_fail (widget != NULL);
1203 g_return_if_fail (GTK_IS_TEXT (widget));
1205 text = GTK_TEXT (widget);
1206 editable = GTK_EDITABLE (widget);
1207 GTK_WIDGET_SET_FLAGS (text, GTK_REALIZED);
1209 attributes.window_type = GDK_WINDOW_CHILD;
1210 attributes.x = widget->allocation.x;
1211 attributes.y = widget->allocation.y;
1212 attributes.width = widget->allocation.width;
1213 attributes.height = widget->allocation.height;
1214 attributes.wclass = GDK_INPUT_OUTPUT;
1215 attributes.visual = gtk_widget_get_visual (widget);
1216 attributes.colormap = gtk_widget_get_colormap (widget);
1217 attributes.event_mask = gtk_widget_get_events (widget);
1218 attributes.event_mask |= (GDK_EXPOSURE_MASK |
1219 GDK_BUTTON_PRESS_MASK |
1220 GDK_BUTTON_RELEASE_MASK |
1221 GDK_BUTTON_MOTION_MASK |
1222 GDK_ENTER_NOTIFY_MASK |
1223 GDK_LEAVE_NOTIFY_MASK |
1224 GDK_KEY_PRESS_MASK);
1225 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1227 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
1228 gdk_window_set_user_data (widget->window, text);
1230 attributes.x = (widget->style->klass->xthickness + TEXT_BORDER_ROOM);
1231 attributes.y = (widget->style->klass->ythickness + TEXT_BORDER_ROOM);
1232 attributes.width = MAX (1, (gint)widget->allocation.width - (gint)attributes.x * 2);
1233 attributes.height = MAX (1, (gint)widget->allocation.height - (gint)attributes.y * 2);
1235 text->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
1236 gdk_window_set_user_data (text->text_area, text);
1238 widget->style = gtk_style_attach (widget->style, widget->window);
1240 /* Can't call gtk_style_set_background here because it's handled specially */
1241 gdk_window_set_background (widget->window, &widget->style->base[GTK_STATE_NORMAL]);
1242 gdk_window_set_background (text->text_area, &widget->style->base[GTK_STATE_NORMAL]);
1244 text->line_wrap_bitmap = gdk_bitmap_create_from_data (text->text_area,
1245 (gchar*) line_wrap_bits,
1249 text->line_arrow_bitmap = gdk_bitmap_create_from_data (text->text_area,
1250 (gchar*) line_arrow_bits,
1254 text->gc = gdk_gc_new (text->text_area);
1255 gdk_gc_set_exposures (text->gc, TRUE);
1256 gdk_gc_set_foreground (text->gc, &widget->style->text[GTK_STATE_NORMAL]);
1259 if (gdk_im_ready ())
1266 GdkIMStyle supported_style = GDK_IM_PREEDIT_NONE |
1267 GDK_IM_PREEDIT_NOTHING |
1268 GDK_IM_PREEDIT_POSITION |
1269 GDK_IM_STATUS_NONE |
1270 GDK_IM_STATUS_NOTHING;
1272 if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
1273 supported_style &= ~GDK_IM_PREEDIT_POSITION;
1275 style = gdk_im_decide_style (supported_style);
1276 switch (style & GDK_IM_PREEDIT_MASK)
1278 case GDK_IM_PREEDIT_POSITION:
1279 if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
1281 g_warning ("over-the-spot style requires fontset");
1284 gdk_window_get_size (text->text_area, &width, &height);
1288 rect.height = height;
1292 editable->ic = gdk_ic_new (text->text_area, text->text_area,
1294 "spotLocation", &spot,
1296 "fontSet", GDK_FONT_XFONT (widget->style->font),
1300 editable->ic = gdk_ic_new (text->text_area, text->text_area,
1304 if (editable->ic == NULL)
1305 g_warning ("Can't create input context.");
1308 GdkColormap *colormap;
1310 mask = gdk_window_get_events (text->text_area);
1311 mask |= gdk_ic_get_events (editable->ic);
1312 gdk_window_set_events (text->text_area, mask);
1314 if ((colormap = gtk_widget_get_colormap (widget)) !=
1315 gtk_widget_get_default_colormap ())
1317 gdk_ic_set_attr (editable->ic, "preeditAttributes",
1318 "colorMap", GDK_COLORMAP_XCOLORMAP (colormap),
1325 realize_properties (text);
1326 gdk_window_show (text->text_area);
1327 init_properties (text);
1329 if (editable->selection_start_pos != editable->selection_end_pos)
1330 gtk_editable_claim_selection (editable, TRUE, GDK_CURRENT_TIME);
1332 recompute_geometry (text);
1336 gtk_text_style_set (GtkWidget *widget,
1337 GtkStyle *previous_style)
1341 g_return_if_fail (widget != NULL);
1342 g_return_if_fail (GTK_IS_TEXT (widget));
1344 text = GTK_TEXT (widget);
1345 if (GTK_WIDGET_REALIZED (widget))
1347 gdk_window_set_background (widget->window, &widget->style->base[GTK_STATE_NORMAL]);
1348 gdk_window_set_background (text->text_area, &widget->style->base[GTK_STATE_NORMAL]);
1350 recompute_geometry (text);
1353 if (text->current_font)
1354 text_font_unref (text->current_font);
1355 text->current_font = get_text_font (widget->style->font);
1357 if (GTK_WIDGET_DRAWABLE (widget))
1358 gdk_window_clear (widget->window);
1362 gtk_text_unrealize (GtkWidget *widget)
1366 g_return_if_fail (widget != NULL);
1367 g_return_if_fail (GTK_IS_TEXT (widget));
1369 text = GTK_TEXT (widget);
1371 gdk_window_set_user_data (text->text_area, NULL);
1372 gdk_window_destroy (text->text_area);
1373 text->text_area = NULL;
1375 gdk_gc_destroy (text->gc);
1378 gdk_pixmap_unref (text->line_wrap_bitmap);
1379 gdk_pixmap_unref (text->line_arrow_bitmap);
1381 unrealize_properties (text);
1383 if (GTK_WIDGET_CLASS (parent_class)->unrealize)
1384 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
1388 clear_focus_area (GtkText *text, gint area_x, gint area_y, gint area_width, gint area_height)
1390 GtkWidget *widget = GTK_WIDGET (text);
1392 gint ythick = TEXT_BORDER_ROOM + widget->style->klass->ythickness;
1393 gint xthick = TEXT_BORDER_ROOM + widget->style->klass->xthickness;
1399 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
1401 yorig = - text->first_onscreen_ver_pixel + ythick;
1402 xorig = - text->first_onscreen_hor_pixel + xthick;
1410 for (y = area_y; y < area_y + area_height; )
1412 gint yoff = (y - yorig) % height;
1413 gint yw = MIN(height - yoff, (area_y + area_height) - y);
1415 for (x = area_x; x < area_x + area_width; )
1417 gint xoff = (x - xorig) % width;
1418 gint xw = MIN(width - xoff, (area_x + area_width) - x);
1420 gdk_draw_pixmap (widget->window,
1422 widget->style->bg_pixmap[GTK_STATE_NORMAL],
1439 gtk_text_draw_focus (GtkWidget *widget)
1445 g_return_if_fail (widget != NULL);
1446 g_return_if_fail (GTK_IS_TEXT (widget));
1448 text = GTK_TEXT (widget);
1450 if (GTK_WIDGET_DRAWABLE (widget))
1452 gint ythick = widget->style->klass->ythickness;
1453 gint xthick = widget->style->klass->xthickness;
1454 gint xextra = TEXT_BORDER_ROOM;
1455 gint yextra = TEXT_BORDER_ROOM;
1457 TDEBUG (("in gtk_text_draw_focus\n"));
1461 width = widget->allocation.width;
1462 height = widget->allocation.height;
1464 if (GTK_WIDGET_HAS_FOCUS (widget))
1473 gtk_paint_focus (widget->style, widget->window,
1474 NULL, widget, "text",
1476 widget->allocation.width - 1,
1477 widget->allocation.height - 1);
1480 gtk_paint_shadow (widget->style, widget->window,
1481 GTK_STATE_NORMAL, GTK_SHADOW_IN,
1482 NULL, widget, "text",
1483 x, y, width, height);
1487 width -= 2 * xthick;
1488 height -= 2 * ythick;
1490 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1493 clear_focus_area (text, x, y, width, yextra);
1495 clear_focus_area (text, x, y + yextra,
1496 xextra, y + height - 2 * yextra);
1498 clear_focus_area (text, x + width - xextra, y + yextra,
1499 xextra, height - 2 * ythick);
1501 clear_focus_area (text, x, x + height - yextra, width, yextra);
1506 TDEBUG (("in gtk_text_draw_focus (undrawable !!!)\n"));
1511 gtk_text_size_request (GtkWidget *widget,
1512 GtkRequisition *requisition)
1519 g_return_if_fail (widget != NULL);
1520 g_return_if_fail (GTK_IS_TEXT (widget));
1521 g_return_if_fail (requisition != NULL);
1523 xthickness = widget->style->klass->xthickness + TEXT_BORDER_ROOM;
1524 ythickness = widget->style->klass->ythickness + TEXT_BORDER_ROOM;
1526 char_height = MIN_TEXT_HEIGHT_LINES * (widget->style->font->ascent +
1527 widget->style->font->descent);
1529 char_width = MIN_TEXT_WIDTH_LINES * (gdk_text_width (widget->style->font,
1530 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
1534 requisition->width = char_width + xthickness * 2;
1535 requisition->height = char_height + ythickness * 2;
1539 gtk_text_size_allocate (GtkWidget *widget,
1540 GtkAllocation *allocation)
1543 GtkEditable *editable;
1545 g_return_if_fail (widget != NULL);
1546 g_return_if_fail (GTK_IS_TEXT (widget));
1547 g_return_if_fail (allocation != NULL);
1549 text = GTK_TEXT (widget);
1550 editable = GTK_EDITABLE (widget);
1552 widget->allocation = *allocation;
1553 if (GTK_WIDGET_REALIZED (widget))
1555 gdk_window_move_resize (widget->window,
1556 allocation->x, allocation->y,
1557 allocation->width, allocation->height);
1559 gdk_window_move_resize (text->text_area,
1560 widget->style->klass->xthickness + TEXT_BORDER_ROOM,
1561 widget->style->klass->ythickness + TEXT_BORDER_ROOM,
1562 MAX (1, (gint)widget->allocation.width - (gint)(widget->style->klass->xthickness +
1563 (gint)TEXT_BORDER_ROOM) * 2),
1564 MAX (1, (gint)widget->allocation.height - (gint)(widget->style->klass->ythickness +
1565 (gint)TEXT_BORDER_ROOM) * 2));
1568 if (editable->ic && (gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION))
1573 gdk_window_get_size (text->text_area, &width, &height);
1577 rect.height = height;
1578 gdk_ic_set_attr (editable->ic, "preeditAttributes", "area", &rect, NULL);
1582 recompute_geometry (text);
1587 gtk_text_draw (GtkWidget *widget,
1590 g_return_if_fail (widget != NULL);
1591 g_return_if_fail (GTK_IS_TEXT (widget));
1592 g_return_if_fail (area != NULL);
1594 if (GTK_WIDGET_DRAWABLE (widget))
1596 expose_text (GTK_TEXT (widget), area, TRUE);
1597 gtk_widget_draw_focus (widget);
1602 gtk_text_expose (GtkWidget *widget,
1603 GdkEventExpose *event)
1605 g_return_val_if_fail (widget != NULL, FALSE);
1606 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1607 g_return_val_if_fail (event != NULL, FALSE);
1609 if (event->window == GTK_TEXT (widget)->text_area)
1611 TDEBUG (("in gtk_text_expose (expose)\n"));
1612 expose_text (GTK_TEXT (widget), &event->area, TRUE);
1614 else if (event->count == 0)
1616 TDEBUG (("in gtk_text_expose (focus)\n"));
1617 gtk_widget_draw_focus (widget);
1624 gtk_text_scroll_timeout (gpointer data)
1627 GdkEventMotion event;
1630 GdkModifierType mask;
1632 g_return_val_if_fail (GTK_IS_TEXT (data), FALSE);
1634 text = GTK_TEXT (data);
1637 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1639 if (!(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)))
1647 gtk_text_motion_notify (GTK_WIDGET (text), &event);
1653 gtk_text_button_press (GtkWidget *widget,
1654 GdkEventButton *event)
1657 GtkEditable *editable;
1658 static GdkAtom ctext_atom = GDK_NONE;
1660 g_return_val_if_fail (widget != NULL, FALSE);
1661 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1662 g_return_val_if_fail (event != NULL, FALSE);
1664 if (ctext_atom == GDK_NONE)
1665 ctext_atom = gdk_atom_intern ("COMPOUND_TEXT", FALSE);
1667 text = GTK_TEXT (widget);
1668 editable = GTK_EDITABLE (widget);
1670 if (text->button && (event->button != text->button))
1673 text->button = event->button;
1675 if (!GTK_WIDGET_HAS_FOCUS (widget))
1676 gtk_widget_grab_focus (widget);
1678 if (event->button == 1)
1680 switch (event->type)
1682 case GDK_BUTTON_PRESS:
1683 gtk_grab_add (widget);
1685 undraw_cursor (text, FALSE);
1686 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1687 draw_cursor (text, FALSE);
1689 /* Set it now, so we display things right. We'll unset it
1690 * later if things don't work out */
1691 editable->has_selection = TRUE;
1692 gtk_text_set_selection (GTK_EDITABLE(text),
1693 text->cursor_mark.index,
1694 text->cursor_mark.index);
1698 case GDK_2BUTTON_PRESS:
1699 gtk_text_select_word (text, event->time);
1702 case GDK_3BUTTON_PRESS:
1703 gtk_text_select_line (text, event->time);
1710 else if (event->type == GDK_BUTTON_PRESS)
1712 if ((event->button == 2) && editable->editable)
1714 if (editable->selection_start_pos == editable->selection_end_pos ||
1715 editable->has_selection)
1717 undraw_cursor (text, FALSE);
1718 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1719 draw_cursor (text, FALSE);
1723 gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
1724 ctext_atom, event->time);
1728 gtk_grab_add (widget);
1730 undraw_cursor (text, FALSE);
1731 find_mouse_cursor (text, event->x, event->y);
1732 draw_cursor (text, FALSE);
1734 gtk_text_set_selection (GTK_EDITABLE(text),
1735 text->cursor_mark.index,
1736 text->cursor_mark.index);
1738 editable->has_selection = FALSE;
1739 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
1740 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
1748 gtk_text_button_release (GtkWidget *widget,
1749 GdkEventButton *event)
1752 GtkEditable *editable;
1753 g_return_val_if_fail (widget != NULL, FALSE);
1754 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1755 g_return_val_if_fail (event != NULL, FALSE);
1757 text = GTK_TEXT (widget);
1759 gtk_grab_remove (widget);
1761 if (text->button != event->button)
1768 gtk_timeout_remove (text->timer);
1772 if (event->button == 1)
1774 text = GTK_TEXT (widget);
1775 editable = GTK_EDITABLE (widget);
1777 gtk_grab_remove (widget);
1779 editable->has_selection = FALSE;
1780 if (editable->selection_start_pos != editable->selection_end_pos)
1782 if (gtk_selection_owner_set (widget,
1783 GDK_SELECTION_PRIMARY,
1785 editable->has_selection = TRUE;
1787 gtk_text_update_text (editable, editable->selection_start_pos,
1788 editable->selection_end_pos);
1792 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
1793 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
1796 else if (event->button == 3)
1798 gtk_grab_remove (widget);
1801 undraw_cursor (text, FALSE);
1802 find_cursor (text, TRUE);
1803 draw_cursor (text, FALSE);
1809 gtk_text_motion_notify (GtkWidget *widget,
1810 GdkEventMotion *event)
1815 GdkModifierType mask;
1817 g_return_val_if_fail (widget != NULL, FALSE);
1818 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1819 g_return_val_if_fail (event != NULL, FALSE);
1821 text = GTK_TEXT (widget);
1825 mask = event->state;
1826 if (event->is_hint || (text->text_area != event->window))
1828 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1831 if ((text->button == 0) ||
1832 !(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)))
1835 gdk_window_get_size (text->text_area, NULL, &height);
1837 if ((y < 0) || (y > height))
1839 if (text->timer == 0)
1841 text->timer = gtk_timeout_add (SCROLL_TIME,
1842 gtk_text_scroll_timeout,
1846 scroll_int (text, y/2);
1848 scroll_int (text, (y - height)/2);
1854 undraw_cursor (GTK_TEXT (widget), FALSE);
1855 find_mouse_cursor (GTK_TEXT (widget), x, y);
1856 draw_cursor (GTK_TEXT (widget), FALSE);
1858 gtk_text_set_selection (GTK_EDITABLE(text),
1859 GTK_EDITABLE(text)->selection_start_pos,
1860 text->cursor_mark.index);
1866 gtk_text_insert_text (GtkEditable *editable,
1867 const gchar *new_text,
1868 gint new_text_length,
1871 GtkText *text = GTK_TEXT (editable);
1873 GdkColor *fore, *back;
1875 TextProperty *property;
1877 gtk_text_set_point (text, *position);
1879 property = MARK_CURRENT_PROPERTY (&text->point);
1880 font = property->flags & PROPERTY_FONT ? property->font->gdk_font : NULL;
1881 fore = property->flags & PROPERTY_FOREGROUND ? &property->fore_color : NULL;
1882 back = property->flags & PROPERTY_BACKGROUND ? &property->back_color : NULL;
1884 gtk_text_insert (text, font, fore, back, new_text, new_text_length);
1886 *position = text->point.index;
1890 gtk_text_delete_text (GtkEditable *editable,
1896 g_return_if_fail (start_pos >= 0);
1898 text = GTK_TEXT (editable);
1900 gtk_text_set_point (text, start_pos);
1902 end_pos = TEXT_LENGTH (text);
1904 if (end_pos > start_pos)
1905 gtk_text_forward_delete (text, end_pos - start_pos);
1909 gtk_text_key_press (GtkWidget *widget,
1913 GtkEditable *editable;
1918 g_return_val_if_fail (widget != NULL, FALSE);
1919 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1920 g_return_val_if_fail (event != NULL, FALSE);
1924 text = GTK_TEXT (widget);
1925 editable = GTK_EDITABLE (widget);
1927 key = event->keyval;
1930 if ((GTK_EDITABLE(text)->editable == FALSE))
1932 switch (event->keyval)
1935 if (event->state & GDK_CONTROL_MASK)
1936 scroll_int (text, -text->vadj->value);
1939 if (event->state & GDK_CONTROL_MASK)
1940 scroll_int (text, +text->vadj->upper);
1942 case GDK_Page_Up: scroll_int (text, -text->vadj->page_increment); break;
1943 case GDK_Page_Down: scroll_int (text, +text->vadj->page_increment); break;
1944 case GDK_Up: scroll_int (text, -KEY_SCROLL_PIXELS); break;
1945 case GDK_Down: scroll_int (text, +KEY_SCROLL_PIXELS); break;
1947 if (event->state & GDK_CONTROL_MASK)
1948 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
1957 gint extend_selection;
1959 guint initial_pos = editable->current_pos;
1961 text->point = find_mark (text, text->cursor_mark.index);
1963 extend_selection = event->state & GDK_SHIFT_MASK;
1964 extend_start = FALSE;
1966 if (extend_selection)
1968 editable->has_selection = TRUE;
1970 if (editable->selection_start_pos == editable->selection_end_pos)
1972 editable->selection_start_pos = text->point.index;
1973 editable->selection_end_pos = text->point.index;
1976 extend_start = (text->point.index == editable->selection_start_pos);
1979 switch (event->keyval)
1982 if (event->state & GDK_CONTROL_MASK)
1983 move_cursor_buffer_ver (text, -1);
1985 gtk_text_move_beginning_of_line (text);
1988 if (event->state & GDK_CONTROL_MASK)
1989 move_cursor_buffer_ver (text, +1);
1991 gtk_text_move_end_of_line (text);
1993 case GDK_Page_Up: move_cursor_page_ver (text, -1); break;
1994 case GDK_Page_Down: move_cursor_page_ver (text, +1); break;
1995 /* CUA has Ctrl-Up/Ctrl-Down as paragraph up down */
1996 case GDK_Up: move_cursor_ver (text, -1); break;
1997 case GDK_Down: move_cursor_ver (text, +1); break;
1999 if (event->state & GDK_CONTROL_MASK)
2000 gtk_text_move_backward_word (text);
2002 move_cursor_hor (text, -1);
2005 if (event->state & GDK_CONTROL_MASK)
2006 gtk_text_move_forward_word (text);
2008 move_cursor_hor (text, +1);
2012 if (event->state & GDK_CONTROL_MASK)
2013 gtk_text_delete_backward_word (text);
2015 gtk_text_delete_backward_character (text);
2018 gtk_text_delete_line (text);
2021 if (event->state & GDK_SHIFT_MASK)
2023 extend_selection = FALSE;
2024 gtk_editable_paste_clipboard (editable);
2026 else if (event->state & GDK_CONTROL_MASK)
2028 gtk_editable_copy_clipboard (editable);
2032 /* gtk_toggle_insert(text) -- IMPLEMENT */
2036 if (event->state & GDK_CONTROL_MASK)
2037 gtk_text_delete_forward_word (text);
2038 else if (event->state & GDK_SHIFT_MASK)
2040 extend_selection = FALSE;
2041 gtk_editable_cut_clipboard (editable);
2044 gtk_text_delete_forward_character (text);
2047 position = text->point.index;
2048 gtk_editable_insert_text (editable, "\t", 1, &position);
2051 if (event->state & GDK_CONTROL_MASK)
2052 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
2055 position = text->point.index;
2056 gtk_editable_insert_text (editable, "\n", 1, &position);
2060 /* Don't insert literally */
2067 if (event->state & GDK_CONTROL_MASK)
2069 if ((key >= 'A') && (key <= 'Z'))
2072 if ((key >= 'a') && (key <= 'z') && control_keys[(int) (key - 'a')])
2074 (* control_keys[(int) (key - 'a')]) (editable, event->time);
2080 else if (event->state & GDK_MOD1_MASK)
2082 if ((key >= 'A') && (key <= 'Z'))
2085 if ((key >= 'a') && (key <= 'z') && alt_keys[(int) (key - 'a')])
2087 (* alt_keys[(int) (key - 'a')]) (editable, event->time);
2093 else if (event->length > 0)
2095 extend_selection = FALSE;
2097 if (event->length == 1)
2099 gtk_editable_delete_selection (editable);
2100 position = text->point.index;
2101 gtk_editable_insert_text (editable, &(event->string[0]), 1, &position);
2110 if (return_val && (editable->current_pos != initial_pos))
2112 if (extend_selection)
2114 if (editable->current_pos < editable->selection_start_pos)
2115 gtk_text_set_selection (editable, editable->current_pos,
2116 editable->selection_end_pos);
2117 else if (editable->current_pos > editable->selection_end_pos)
2118 gtk_text_set_selection (editable, editable->selection_start_pos,
2119 editable->current_pos);
2123 gtk_text_set_selection (editable, editable->current_pos,
2124 editable->selection_end_pos);
2126 gtk_text_set_selection (editable, editable->selection_start_pos,
2127 editable->current_pos);
2131 gtk_text_set_selection (editable, 0, 0);
2133 gtk_editable_claim_selection (editable,
2134 editable->selection_start_pos != editable->selection_end_pos,
2143 gtk_text_focus_in (GtkWidget *widget,
2144 GdkEventFocus *event)
2146 g_return_val_if_fail (widget != NULL, FALSE);
2147 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
2148 g_return_val_if_fail (event != NULL, FALSE);
2150 TDEBUG (("in gtk_text_focus_in\n"));
2152 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
2153 gtk_widget_draw_focus (widget);
2156 if (GTK_EDITABLE(widget)->ic)
2157 gdk_im_begin (GTK_EDITABLE(widget)->ic, GTK_TEXT(widget)->text_area);
2160 draw_cursor (GTK_TEXT(widget), TRUE);
2166 gtk_text_focus_out (GtkWidget *widget,
2167 GdkEventFocus *event)
2169 g_return_val_if_fail (widget != NULL, FALSE);
2170 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
2171 g_return_val_if_fail (event != NULL, FALSE);
2173 TDEBUG (("in gtk_text_focus_out\n"));
2175 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
2176 gtk_widget_draw_focus (widget);
2178 undraw_cursor (GTK_TEXT(widget), TRUE);
2188 gtk_text_adjustment (GtkAdjustment *adjustment,
2191 g_return_if_fail (adjustment != NULL);
2192 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2193 g_return_if_fail (text != NULL);
2194 g_return_if_fail (GTK_IS_TEXT (text));
2196 /* Just ignore it if we haven't been size-allocated and realized yet */
2197 if (text->line_start_cache == NULL)
2200 if (adjustment == text->hadj)
2202 g_warning ("horizontal scrolling not implemented");
2206 gint diff = ((gint)adjustment->value) - text->last_ver_value;
2210 undraw_cursor (text, FALSE);
2213 scroll_down (text, diff);
2214 else /* if (diff < 0) */
2215 scroll_up (text, diff);
2217 draw_cursor (text, FALSE);
2219 text->last_ver_value = adjustment->value;
2225 gtk_text_disconnect (GtkAdjustment *adjustment,
2228 g_return_if_fail (adjustment != NULL);
2229 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2230 g_return_if_fail (text != NULL);
2231 g_return_if_fail (GTK_IS_TEXT (text));
2233 if (adjustment == text->hadj)
2234 gtk_text_set_adjustments (text, NULL, text->vadj);
2235 if (adjustment == text->vadj)
2236 gtk_text_set_adjustments (text, text->hadj, NULL);
2240 static GtkPropertyMark
2241 find_this_line_start_mark (GtkText* text, guint point_position, const GtkPropertyMark* near)
2243 GtkPropertyMark mark;
2245 mark = find_mark_near (text, point_position, near);
2247 while (mark.index > 0 &&
2248 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
2249 decrement_mark (&mark);
2255 init_tab_cont (GtkText* text, PrevTabCont* tab_cont)
2257 tab_cont->pixel_offset = 0;
2258 tab_cont->tab_start.tab_stops = text->tab_stops;
2259 tab_cont->tab_start.to_next_tab = (gulong) text->tab_stops->data;
2261 if (!tab_cont->tab_start.to_next_tab)
2262 tab_cont->tab_start.to_next_tab = text->default_tab_width;
2266 line_params_iterate (GtkText* text,
2267 const GtkPropertyMark* mark0,
2268 const PrevTabCont* tab_mark0,
2271 LineIteratorFunction iter)
2272 /* mark0 MUST be a real line start. if ALLOC, allocate line params
2273 * from a mem chunk. DATA is passed to ITER_CALL, which is called
2274 * for each line following MARK, iteration continues unless ITER_CALL
2277 GtkPropertyMark mark = *mark0;
2278 PrevTabCont tab_conts[2];
2279 LineParams *lp, lpbuf;
2280 gint tab_cont_index = 0;
2283 tab_conts[0] = *tab_mark0;
2285 init_tab_cont (text, tab_conts);
2290 lp = g_chunk_new (LineParams, params_mem_chunk);
2294 *lp = find_line_params (text, &mark, tab_conts + tab_cont_index,
2295 tab_conts + (tab_cont_index + 1) % 2);
2297 if ((*iter) (text, lp, data))
2300 if (LAST_INDEX (text, lp->end))
2304 advance_mark (&mark);
2305 tab_cont_index = (tab_cont_index + 1) % 2;
2310 fetch_lines_iterator (GtkText* text, LineParams* lp, void* data)
2312 FetchLinesData *fldata = (FetchLinesData*) data;
2314 fldata->new_lines = g_list_prepend (fldata->new_lines, lp);
2316 switch (fldata->fl_type)
2318 case FetchLinesCount:
2319 if (!text->line_wrap || !lp->wraps)
2322 if (fldata->data >= fldata->data_max)
2326 case FetchLinesPixels:
2328 fldata->data += LINE_HEIGHT(*lp);
2330 if (fldata->data >= fldata->data_max)
2340 fetch_lines (GtkText* text,
2341 const GtkPropertyMark* mark0,
2342 const PrevTabCont* tab_cont0,
2346 FetchLinesData fl_data;
2348 fl_data.new_lines = NULL;
2350 fl_data.data_max = data;
2351 fl_data.fl_type = fl_type;
2353 line_params_iterate (text, mark0, tab_cont0, TRUE, &fl_data, fetch_lines_iterator);
2355 return g_list_reverse (fl_data.new_lines);
2359 fetch_lines_backward (GtkText* text)
2361 GList* new_lines = NULL, *new_line_start;
2362 GtkPropertyMark mark;
2364 if (CACHE_DATA(text->line_start_cache).start.index == 0)
2367 mark = find_this_line_start_mark (text,
2368 CACHE_DATA(text->line_start_cache).start.index - 1,
2369 &CACHE_DATA(text->line_start_cache).start);
2371 new_line_start = new_lines = fetch_lines (text, &mark, NULL, FetchLinesCount, 1);
2373 while (new_line_start->next)
2374 new_line_start = new_line_start->next;
2376 new_line_start->next = text->line_start_cache;
2377 text->line_start_cache->prev = new_line_start;
2381 fetch_lines_forward (GtkText* text, gint line_count)
2383 GtkPropertyMark mark;
2384 GList* line = text->line_start_cache;
2389 mark = CACHE_DATA(line).end;
2391 if (LAST_INDEX (text, mark))
2394 advance_mark(&mark);
2396 line->next = fetch_lines (text, &mark, &CACHE_DATA(line).tab_cont_next, FetchLinesCount, line_count);
2399 line->next->prev = line;
2402 /* Compute the number of lines, and vertical pixels for n characters
2403 * starting from the point
2406 compute_lines_pixels (GtkText* text, guint char_count,
2407 guint *lines, guint *pixels)
2409 GList *line = text->current_line;
2410 gint chars_left = char_count;
2415 /* If chars_left == 0, that means we're joining two lines in a
2416 * deletion, so add in the values for the next line as well
2418 for (; line && chars_left >= 0; line = line->next)
2420 *pixels += LINE_HEIGHT(CACHE_DATA(line));
2422 if (line == text->current_line)
2423 chars_left -= CACHE_DATA(line).end.index - text->point.index + 1;
2425 chars_left -= CACHE_DATA(line).end.index - CACHE_DATA(line).start.index + 1;
2427 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2431 chars_left = 0; /* force another loop */
2434 fetch_lines_forward (text, 1);
2439 total_line_height (GtkText* text, GList* line, gint line_count)
2443 for (; line && line_count > 0; line = line->next)
2445 height += LINE_HEIGHT(CACHE_DATA(line));
2447 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2451 fetch_lines_forward (text, line_count);
2458 swap_lines (GtkText* text, GList* old, GList* new, guint old_line_count)
2460 if (old == text->line_start_cache)
2464 for (; old_line_count > 0; old_line_count -= 1)
2466 while (text->line_start_cache &&
2468 CACHE_DATA(text->line_start_cache).wraps)
2469 remove_cache_line(text, text->line_start_cache);
2471 remove_cache_line(text, text->line_start_cache);
2474 last = g_list_last (new);
2476 last->next = text->line_start_cache;
2478 if (text->line_start_cache)
2479 text->line_start_cache->prev = last;
2481 text->line_start_cache = new;
2487 g_assert (old->prev);
2491 for (; old_line_count > 0; old_line_count -= 1)
2493 while (old && text->line_wrap && CACHE_DATA(old).wraps)
2494 old = remove_cache_line (text, old);
2496 old = remove_cache_line (text, old);
2502 last = g_list_last (new);
2512 correct_cache_delete (GtkText* text, gint nchars, gint lines)
2514 GList* cache = text->current_line;
2517 for (i = 0; cache && i < lines; i += 1, cache = cache->next)
2520 for (; cache; cache = cache->next)
2522 GtkPropertyMark *start = &CACHE_DATA(cache).start;
2523 GtkPropertyMark *end = &CACHE_DATA(cache).end;
2525 start->index -= nchars;
2526 end->index -= nchars;
2528 if (LAST_INDEX (text, text->point) &&
2529 start->index == text->point.index)
2530 *start = text->point;
2531 else if (start->property == text->point.property)
2532 start->offset = start->index - (text->point.index - text->point.offset);
2534 if (LAST_INDEX (text, text->point) &&
2535 end->index == text->point.index)
2537 if (end->property == text->point.property)
2538 end->offset = end->index - (text->point.index - text->point.offset);
2540 /*TEXT_ASSERT_MARK(text, start, "start");*/
2541 /*TEXT_ASSERT_MARK(text, end, "end");*/
2546 delete_expose (GtkText* text, guint nchars, guint old_lines, guint old_pixels)
2548 GtkWidget *widget = GTK_WIDGET (text);
2551 guint new_pixels = 0;
2553 GList* new_line = NULL;
2556 text->cursor_virtual_x = 0;
2558 correct_cache_delete (text, nchars, old_lines);
2560 pixel_height = pixel_height_of(text, text->current_line) -
2561 LINE_HEIGHT(CACHE_DATA(text->current_line));
2563 if (CACHE_DATA(text->current_line).start.index == text->point.index)
2564 CACHE_DATA(text->current_line).start = text->point;
2566 new_line = fetch_lines (text,
2567 &CACHE_DATA(text->current_line).start,
2568 &CACHE_DATA(text->current_line).tab_cont,
2572 swap_lines (text, text->current_line, new_line, old_lines);
2574 text->current_line = new_line;
2576 new_pixels = total_line_height (text, new_line, 1);
2578 gdk_window_get_size (text->text_area, &width, &height);
2580 if (old_pixels != new_pixels)
2582 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2584 gdk_draw_pixmap (text->text_area,
2588 pixel_height + old_pixels,
2590 pixel_height + new_pixels,
2594 text->vadj->upper += new_pixels;
2595 text->vadj->upper -= old_pixels;
2596 adjust_adj (text, text->vadj);
2600 rect.y = pixel_height;
2602 rect.height = new_pixels;
2604 expose_text (text, &rect, FALSE);
2605 gtk_text_draw_focus ( (GtkWidget *) text);
2607 text->cursor_mark = text->point;
2609 find_cursor (text, TRUE);
2611 if (old_pixels != new_pixels)
2613 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2616 rect.y = pixel_height + new_pixels;
2618 rect.height = height - rect.y;
2620 expose_text (text, &rect, FALSE);
2623 process_exposes (text);
2630 /* note, the point has already been moved forward */
2632 correct_cache_insert (GtkText* text, gint nchars)
2635 GtkPropertyMark *start;
2636 GtkPropertyMark *end;
2637 gboolean was_split = FALSE;
2639 /* We need to distinguish whether the property was split in the
2640 * insert or not, so we check if the point (which points after
2641 * the insertion here), points to the same character as the
2642 * point before. Ugh.
2646 GtkPropertyMark tmp_mark = text->point;
2647 move_mark_n (&tmp_mark, -1);
2649 if (tmp_mark.property != text->point.property)
2653 /* If we inserted a property exactly at the beginning of the
2654 * line, we have to correct here, or fetch_lines will
2657 start = &CACHE_DATA(text->current_line).start;
2659 /* Check if if we split exactly at the beginning of the line:
2660 * (was_split won't be set if we are inserting at the end of the text,
2661 * so we don't check)
2663 if (start->offset == MARK_CURRENT_PROPERTY (start)->length)
2664 SET_PROPERTY_MARK (start, start->property->next, 0);
2665 /* Check if we inserted a property at the beginning of the text: */
2666 else if (was_split &&
2667 (start->property == text->point.property) &&
2668 (start->index == text->point.index - nchars))
2669 SET_PROPERTY_MARK (start, start->property->prev, 0);
2671 /* Now correct the offsets, and check for start or end marks that
2672 * are after the point, yet point to a property before the point's
2673 * property. This indicates that they are meant to point to the
2674 * second half of a property we split in insert_text_property(), so
2675 * we fix them up that way.
2677 cache = text->current_line->next;
2679 for (; cache; cache = cache->next)
2681 start = &CACHE_DATA(cache).start;
2682 end = &CACHE_DATA(cache).end;
2684 if (LAST_INDEX (text, text->point) &&
2685 start->index == text->point.index)
2686 *start = text->point;
2687 else if (start->index >= text->point.index - nchars)
2689 if (!was_split && start->property == text->point.property)
2690 move_mark_n(start, nchars);
2693 if (start->property->next &&
2694 (start->property->next->next == text->point.property))
2696 g_assert (start->offset >= MARK_CURRENT_PROPERTY (start)->length);
2697 start->offset -= MARK_CURRENT_PROPERTY (start)->length;
2698 start->property = text->point.property;
2700 start->index += nchars;
2704 if (LAST_INDEX (text, text->point) &&
2705 end->index == text->point.index)
2707 if (end->index >= text->point.index - nchars)
2709 if (!was_split && end->property == text->point.property)
2710 move_mark_n(end, nchars);
2713 if (end->property->next &&
2714 (end->property->next->next == text->point.property))
2716 g_assert (end->offset >= MARK_CURRENT_PROPERTY (end)->length);
2717 end->offset -= MARK_CURRENT_PROPERTY (end)->length;
2718 end->property = text->point.property;
2720 end->index += nchars;
2724 /*TEXT_ASSERT_MARK(text, start, "start");*/
2725 /*TEXT_ASSERT_MARK(text, end, "end");*/
2731 insert_expose (GtkText* text, guint old_pixels, gint nchars,
2732 guint new_line_count)
2734 GtkWidget *widget = GTK_WIDGET (text);
2737 guint new_pixels = 0;
2739 GList* new_lines = NULL;
2742 text->cursor_virtual_x = 0;
2744 undraw_cursor (text, FALSE);
2746 correct_cache_insert (text, nchars);
2748 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2750 pixel_height = pixel_height_of(text, text->current_line) -
2751 LINE_HEIGHT(CACHE_DATA(text->current_line));
2753 new_lines = fetch_lines (text,
2754 &CACHE_DATA(text->current_line).start,
2755 &CACHE_DATA(text->current_line).tab_cont,
2759 swap_lines (text, text->current_line, new_lines, 1);
2761 text->current_line = new_lines;
2763 new_pixels = total_line_height (text, new_lines, new_line_count);
2765 gdk_window_get_size (text->text_area, &width, &height);
2767 if (old_pixels != new_pixels)
2769 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2771 gdk_draw_pixmap (text->text_area,
2775 pixel_height + old_pixels,
2777 pixel_height + new_pixels,
2779 height + (old_pixels - new_pixels) - pixel_height);
2782 text->vadj->upper += new_pixels;
2783 text->vadj->upper -= old_pixels;
2784 adjust_adj (text, text->vadj);
2788 rect.y = pixel_height;
2790 rect.height = new_pixels;
2792 expose_text (text, &rect, FALSE);
2793 gtk_text_draw_focus ( (GtkWidget *) text);
2795 text->cursor_mark = text->point;
2797 find_cursor (text, TRUE);
2799 draw_cursor (text, FALSE);
2801 if (old_pixels != new_pixels)
2803 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2806 rect.y = pixel_height + new_pixels;
2808 rect.height = height - rect.y;
2810 expose_text (text, &rect, FALSE);
2813 process_exposes (text);
2816 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2821 /* Text property functions */
2824 font_hash (gconstpointer font)
2826 return gdk_font_id ((const GdkFont*) font);
2829 static GHashTable *font_cache_table = NULL;
2832 get_text_font (GdkFont* gfont)
2837 if (!font_cache_table)
2838 font_cache_table = g_hash_table_new (font_hash, (GCompareFunc) gdk_font_equal);
2840 tf = g_hash_table_lookup (font_cache_table, gfont);
2848 tf = g_new (GtkTextFont, 1);
2851 tf->gdk_font = gfont;
2852 gdk_font_ref (gfont);
2854 for(i = 0; i < 256; i += 1)
2855 tf->char_widths[i] = gdk_char_width (gfont, (char)i);
2857 g_hash_table_insert (font_cache_table, gfont, tf);
2863 text_font_unref (GtkTextFont *text_font)
2865 text_font->ref_count--;
2866 if (text_font->ref_count == 0)
2868 g_hash_table_remove (font_cache_table, text_font->gdk_font);
2869 gdk_font_unref (text_font->gdk_font);
2875 text_properties_equal (TextProperty* prop, GdkFont* font, GdkColor *fore, GdkColor *back)
2877 if (prop->flags & PROPERTY_FONT)
2880 GtkTextFont *text_font;
2885 text_font = get_text_font (font);
2887 retval = (prop->font == text_font);
2888 text_font_unref (text_font);
2897 if (prop->flags & PROPERTY_FOREGROUND)
2899 if (!fore || !gdk_color_equal (&prop->fore_color, fore))
2906 if (prop->flags & PROPERTY_BACKGROUND)
2908 if (!back || !gdk_color_equal (&prop->fore_color, fore))
2919 realize_property (GtkText *text, TextProperty *prop)
2921 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2923 if (prop->flags & PROPERTY_FOREGROUND)
2924 gdk_colormap_alloc_color (colormap, &prop->fore_color, FALSE, FALSE);
2926 if (prop->flags & PROPERTY_BACKGROUND)
2927 gdk_colormap_alloc_color (colormap, &prop->back_color, FALSE, FALSE);
2931 realize_properties (GtkText *text)
2933 GList *tmp_list = text->text_properties;
2937 realize_property (text, tmp_list->data);
2939 tmp_list = tmp_list->next;
2944 unrealize_property (GtkText *text, TextProperty *prop)
2946 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2948 if (prop->flags & PROPERTY_FOREGROUND)
2949 gdk_colormap_free_colors (colormap, &prop->fore_color, 1);
2951 if (prop->flags & PROPERTY_BACKGROUND)
2952 gdk_colormap_free_colors (colormap, &prop->back_color, 1);
2956 unrealize_properties (GtkText *text)
2958 GList *tmp_list = text->text_properties;
2962 unrealize_property (text, tmp_list->data);
2964 tmp_list = tmp_list->next;
2968 static TextProperty*
2969 new_text_property (GtkText *text, GdkFont *font, GdkColor* fore,
2970 GdkColor* back, guint length)
2974 if (text_property_chunk == NULL)
2976 text_property_chunk = g_mem_chunk_new ("text property mem chunk",
2977 sizeof(TextProperty),
2978 1024*sizeof(TextProperty),
2982 prop = g_chunk_new(TextProperty, text_property_chunk);
2987 prop->flags |= PROPERTY_FONT;
2988 prop->font = get_text_font (font);
2995 prop->flags |= PROPERTY_FOREGROUND;
2996 prop->fore_color = *fore;
3001 prop->flags |= PROPERTY_BACKGROUND;
3002 prop->back_color = *back;
3005 prop->length = length;
3007 if (GTK_WIDGET_REALIZED (text))
3008 realize_property (text, prop);
3014 destroy_text_property (TextProperty *prop)
3017 text_font_unref (prop->font);
3019 g_mem_chunk_free (text_property_chunk, prop);
3022 /* Flop the memory between the point and the gap around like a
3025 move_gap_to_point (GtkText* text)
3027 if (text->gap_position < text->point.index)
3029 gint diff = text->point.index - text->gap_position;
3031 g_memmove (text->text + text->gap_position,
3032 text->text + text->gap_position + text->gap_size,
3035 text->gap_position = text->point.index;
3037 else if (text->gap_position > text->point.index)
3039 gint diff = text->gap_position - text->point.index;
3041 g_memmove (text->text + text->point.index + text->gap_size,
3042 text->text + text->point.index,
3045 text->gap_position = text->point.index;
3049 /* Increase the gap size. */
3051 make_forward_space (GtkText* text, guint len)
3053 if (text->gap_size < len)
3055 guint sum = MAX(2*len, MIN_GAP_SIZE) + text->text_end;
3057 if (sum >= text->text_len)
3061 while (i <= sum) i <<= 1;
3063 text->text = (guchar*)g_realloc(text->text, i);
3066 g_memmove (text->text + text->gap_position + text->gap_size + 2*len,
3067 text->text + text->gap_position + text->gap_size,
3068 text->text_end - (text->gap_position + text->gap_size));
3070 text->text_end += len*2;
3071 text->gap_size += len*2;
3075 /* Inserts into the text property list a list element that guarantees
3076 * that for len characters following the point, text has the correct
3077 * property. does not move point. adjusts text_properties_point and
3078 * text_properties_point_offset relative to the current value of
3081 insert_text_property (GtkText* text, GdkFont* font,
3082 GdkColor *fore, GdkColor* back, guint len)
3084 GtkPropertyMark *mark = &text->point;
3085 TextProperty* forward_prop = MARK_CURRENT_PROPERTY(mark);
3086 TextProperty* backward_prop = MARK_PREV_PROPERTY(mark);
3088 if (MARK_OFFSET(mark) == 0)
3090 /* Point is on the boundary of two properties.
3091 * If it is the same as either, grow, else insert
3094 if (text_properties_equal(forward_prop, font, fore, back))
3096 /* Grow the property in front of us. */
3098 MARK_PROPERTY_LENGTH(mark) += len;
3100 else if (backward_prop &&
3101 text_properties_equal(backward_prop, font, fore, back))
3103 /* Grow property behind us, point property and offset
3106 SET_PROPERTY_MARK (&text->point,
3107 MARK_PREV_LIST_PTR (mark),
3108 backward_prop->length);
3110 backward_prop->length += len;
3112 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3113 (forward_prop->length == 1))
3115 /* Next property just has last position, take it over */
3117 if (GTK_WIDGET_REALIZED (text))
3118 unrealize_property (text, forward_prop);
3120 forward_prop->flags = 0;
3123 forward_prop->flags |= PROPERTY_FONT;
3124 forward_prop->font = get_text_font (font);
3127 forward_prop->font = NULL;
3131 forward_prop->flags |= PROPERTY_FOREGROUND;
3132 forward_prop->fore_color = *fore;
3136 forward_prop->flags |= PROPERTY_BACKGROUND;
3137 forward_prop->back_color = *back;
3139 forward_prop->length += len;
3141 if (GTK_WIDGET_REALIZED (text))
3142 realize_property (text, forward_prop);
3146 /* Splice a new property into the list. */
3148 GList* new_prop = g_list_alloc();
3150 new_prop->next = MARK_LIST_PTR(mark);
3151 new_prop->prev = MARK_PREV_LIST_PTR(mark);
3152 new_prop->next->prev = new_prop;
3155 new_prop->prev->next = new_prop;
3157 new_prop->data = new_text_property (text, font, fore, back, len);
3159 SET_PROPERTY_MARK (mark, new_prop, 0);
3164 /* The following will screw up the line_start cache,
3165 * we'll fix it up in correct_cache_insert
3168 /* In the middle of forward_prop, if properties are equal,
3169 * just add to its length, else split it into two and splice
3171 if (text_properties_equal (forward_prop, font, fore, back))
3173 forward_prop->length += len;
3175 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3176 (MARK_OFFSET(mark) + 1 == forward_prop->length))
3178 /* Inserting before only the last position in the text */
3181 forward_prop->length -= 1;
3183 new_prop = g_list_alloc();
3184 new_prop->data = new_text_property (text, font, fore, back, len+1);
3185 new_prop->prev = MARK_LIST_PTR(mark);
3186 new_prop->next = NULL;
3187 MARK_NEXT_LIST_PTR(mark) = new_prop;
3189 SET_PROPERTY_MARK (mark, new_prop, 0);
3193 GList* new_prop = g_list_alloc();
3194 GList* new_prop_forward = g_list_alloc();
3195 gint old_length = forward_prop->length;
3196 GList* next = MARK_NEXT_LIST_PTR(mark);
3198 /* Set the new lengths according to where they are split. Construct
3199 * two new properties. */
3200 forward_prop->length = MARK_OFFSET(mark);
3202 new_prop_forward->data =
3203 new_text_property(text,
3204 forward_prop->flags & PROPERTY_FONT ?
3205 forward_prop->font->gdk_font : NULL,
3206 forward_prop->flags & PROPERTY_FOREGROUND ?
3207 &forward_prop->fore_color : NULL,
3208 forward_prop->flags & PROPERTY_BACKGROUND ?
3209 &forward_prop->back_color : NULL,
3210 old_length - forward_prop->length);
3212 new_prop->data = new_text_property(text, font, fore, back, len);
3214 /* Now splice things in. */
3215 MARK_NEXT_LIST_PTR(mark) = new_prop;
3216 new_prop->prev = MARK_LIST_PTR(mark);
3218 new_prop->next = new_prop_forward;
3219 new_prop_forward->prev = new_prop;
3221 new_prop_forward->next = next;
3224 next->prev = new_prop_forward;
3226 SET_PROPERTY_MARK (mark, new_prop, 0);
3230 while (text->text_properties_end->next)
3231 text->text_properties_end = text->text_properties_end->next;
3233 while (text->text_properties->prev)
3234 text->text_properties = text->text_properties->prev;
3238 delete_text_property (GtkText* text, guint nchars)
3240 /* Delete nchars forward from point. */
3242 /* Deleting text properties is problematical, because we
3243 * might be storing around marks pointing to a property.
3245 * The marks in question and how we handle them are:
3247 * point: We know the new value, since it will be at the
3248 * end of the deleted text, and we move it there
3250 * cursor: We just remove the mark and set it equal to the
3251 * point after the operation.
3252 * line-start cache: We replace most affected lines.
3253 * The current line gets used to fetch the new
3254 * lines so, if necessary, (delete at the beginning
3255 * of a line) we fix it up by setting it equal to the
3263 for(; nchars; nchars -= 1)
3265 prop = MARK_CURRENT_PROPERTY(&text->point);
3269 if (prop->length == 0)
3271 tmp = MARK_LIST_PTR (&text->point);
3273 is_first = tmp == text->text_properties;
3275 MARK_LIST_PTR (&text->point) = g_list_remove_link (tmp, tmp);
3276 text->point.offset = 0;
3278 if (GTK_WIDGET_REALIZED (text))
3279 unrealize_property (text, prop);
3281 destroy_text_property (prop);
3282 g_list_free_1 (tmp);
3284 prop = MARK_CURRENT_PROPERTY (&text->point);
3287 text->text_properties = MARK_LIST_PTR (&text->point);
3289 g_assert (prop->length != 0);
3291 else if (prop->length == text->point.offset)
3293 MARK_LIST_PTR (&text->point) = MARK_NEXT_LIST_PTR (&text->point);
3294 text->point.offset = 0;
3298 /* Check to see if we have just the single final position remaining
3299 * along in a property; if so, combine it with the previous property
3301 if (LAST_INDEX (text, text->point) &&
3302 (MARK_OFFSET (&text->point) == 0) &&
3303 (MARK_PREV_LIST_PTR(&text->point) != NULL))
3305 tmp = MARK_LIST_PTR (&text->point);
3306 prop = MARK_CURRENT_PROPERTY(&text->point);
3308 MARK_LIST_PTR (&text->point) = MARK_PREV_LIST_PTR (&text->point);
3309 MARK_CURRENT_PROPERTY(&text->point)->length += 1;
3310 MARK_NEXT_LIST_PTR(&text->point) = NULL;
3312 text->point.offset = MARK_CURRENT_PROPERTY(&text->point)->length - 1;
3314 if (GTK_WIDGET_REALIZED (text))
3315 unrealize_property (text, prop);
3317 destroy_text_property (prop);
3318 g_list_free_1 (tmp);
3323 init_properties (GtkText *text)
3325 if (!text->text_properties)
3327 text->text_properties = g_list_alloc();
3328 text->text_properties->next = NULL;
3329 text->text_properties->prev = NULL;
3330 text->text_properties->data = new_text_property (text, NULL, NULL, NULL, 1);
3331 text->text_properties_end = text->text_properties;
3333 SET_PROPERTY_MARK (&text->point, text->text_properties, 0);
3335 text->point.index = 0;
3340 /**********************************************************************/
3341 /* Property Movement */
3342 /**********************************************************************/
3345 move_mark_n (GtkPropertyMark* mark, gint n)
3348 advance_mark_n(mark, n);
3350 decrement_mark_n(mark, -n);
3354 advance_mark (GtkPropertyMark* mark)
3356 TextProperty* prop = MARK_CURRENT_PROPERTY (mark);
3360 if (prop->length > mark->offset + 1)
3364 mark->property = MARK_NEXT_LIST_PTR (mark);
3370 advance_mark_n (GtkPropertyMark* mark, gint n)
3377 i = 0; /* otherwise it migth not be init. */
3378 prop = MARK_CURRENT_PROPERTY(mark);
3380 if ((prop->length - mark->offset - 1) < n) { /* if we need to change prop. */
3381 /* to make it easier */
3382 n += (mark->offset);
3383 mark->index -= mark->offset;
3385 /* first we take seven-mile-leaps to get to the right text
3387 while ((n-i) > prop->length - 1) {
3389 mark->index += prop->length;
3390 mark->property = MARK_NEXT_LIST_PTR (mark);
3391 prop = MARK_CURRENT_PROPERTY (mark);
3395 /* and then the rest */
3396 mark->index += n - i;
3397 mark->offset += n - i;
3401 decrement_mark (GtkPropertyMark* mark)
3405 if (mark->offset > 0)
3409 mark->property = MARK_PREV_LIST_PTR (mark);
3410 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3415 decrement_mark_n (GtkPropertyMark* mark, gint n)
3419 while (mark->offset < n) {
3420 /* jump to end of prev */
3421 n -= mark->offset + 1;
3422 mark->index -= mark->offset + 1;
3423 mark->property = MARK_PREV_LIST_PTR (mark);
3424 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3432 static GtkPropertyMark
3433 find_mark (GtkText* text, guint mark_position)
3435 return find_mark_near (text, mark_position, &text->point);
3439 * You can also start from the end, what a drag.
3441 static GtkPropertyMark
3442 find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near)
3447 GtkPropertyMark mark;
3450 diffa = mark_position + 1;
3452 diffa = mark_position - near->index;
3454 diffb = mark_position;
3466 mark.property = text->text_properties;
3470 move_mark_n (&mark, mark_position - mark.index);
3475 /* This routine must be called with scroll == FALSE, only when
3476 * point is at least partially on screen
3480 find_line_containing_point (GtkText* text, guint point,
3486 text->current_line = NULL;
3488 if (!text->line_start_cache->next)
3490 /* @@@ Its visible, right? */
3491 text->current_line = text->line_start_cache;
3495 while ( ( scroll && (text->first_cut_pixels != 0) &&
3496 (CACHE_DATA(text->line_start_cache->next).start.index > point) ) ||
3497 ( (text->first_cut_pixels == 0) &&
3498 (CACHE_DATA(text->line_start_cache).start.index > point) ) )
3500 scroll_int (text, - SCROLL_PIXELS);
3501 g_assert (text->line_start_cache->next);
3505 gdk_window_get_size (text->text_area, NULL, &height);
3507 for (cache = text->line_start_cache; cache; cache = cache->next)
3511 if (CACHE_DATA(cache).end.index >= point ||
3512 LAST_INDEX(text, CACHE_DATA(cache).end))
3514 text->current_line = cache; /* LOOK HERE, this proc has an
3515 * important side effect. */
3519 TEXT_SHOW_LINE (text, cache, "cache");
3521 if (cache->next == NULL)
3522 fetch_lines_forward (text, 1);
3526 lph = pixel_height_of (text, cache->next);
3528 /* Scroll the bottom of the line is on screen, or until
3529 * the line is the first onscreen line.
3531 while (cache->next != text->line_start_cache && lph > height)
3533 TEXT_SHOW_LINE (text, cache, "cache");
3534 TEXT_SHOW_LINE (text, cache->next, "cache->next");
3535 scroll_int (text, LINE_HEIGHT(CACHE_DATA(cache->next)));
3536 lph = pixel_height_of (text, cache->next);
3541 g_assert_not_reached (); /* Must set text->current_line here */
3545 pixel_height_of (GtkText* text, GList* cache_line)
3547 gint pixels = - text->first_cut_pixels;
3548 GList *cache = text->line_start_cache;
3551 pixels += LINE_HEIGHT (CACHE_DATA(cache));
3553 if (cache->data == cache_line->data)
3556 cache = cache->next;
3562 /**********************************************************************/
3563 /* Search and Placement */
3564 /**********************************************************************/
3567 find_char_width (GtkText* text, const GtkPropertyMark *mark, const TabStopMark *tab_mark)
3570 gint16* char_widths;
3572 if (LAST_INDEX (text, *mark))
3575 ch = GTK_TEXT_INDEX (text, mark->index);
3576 char_widths = MARK_CURRENT_TEXT_FONT (text, mark)->char_widths;
3580 return tab_mark->to_next_tab * char_widths[' '];
3584 return char_widths[ch & 0xff];
3589 advance_tab_mark (GtkText* text, TabStopMark* tab_mark, gchar ch)
3591 if (tab_mark->to_next_tab == 1 || ch == '\t')
3593 if (tab_mark->tab_stops->next)
3595 tab_mark->tab_stops = tab_mark->tab_stops->next;
3596 tab_mark->to_next_tab = (gulong) tab_mark->tab_stops->data;
3600 tab_mark->to_next_tab = text->default_tab_width;
3605 tab_mark->to_next_tab -= 1;
3610 advance_tab_mark_n (GtkText* text, TabStopMark* tab_mark, gint n)
3614 advance_tab_mark (text, tab_mark, 0);
3618 find_cursor_at_line (GtkText* text, const LineParams* start_line, gint pixel_height)
3621 GtkEditable *editable = (GtkEditable *)text;
3623 GtkPropertyMark mark = start_line->start;
3624 TabStopMark tab_mark = start_line->tab_cont.tab_start;
3625 gint pixel_width = LINE_START_PIXEL (*start_line);
3627 while (mark.index < text->cursor_mark.index)
3629 pixel_width += find_char_width (text, &mark, &tab_mark);
3631 advance_tab_mark (text, &tab_mark, GTK_TEXT_INDEX(text, mark.index));
3632 advance_mark (&mark);
3635 text->cursor_pos_x = pixel_width;
3636 text->cursor_pos_y = pixel_height;
3637 text->cursor_char_offset = start_line->font_descent;
3638 text->cursor_mark = mark;
3640 ch = LAST_INDEX (text, mark) ?
3641 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3644 text->cursor_char = ch;
3646 text->cursor_char = 0;
3649 if (gdk_im_ready() && editable->ic &&
3650 gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION)
3654 spot.x = text->cursor_pos_x;
3655 spot.y = text->cursor_pos_y - text->cursor_char_offset;
3656 if (MARK_CURRENT_FONT (text, &mark)->type == GDK_FONT_FONTSET)
3657 gdk_ic_set_attr (editable->ic, "preeditAttributes",
3658 "fontSet", GDK_FONT_XFONT (MARK_CURRENT_FONT (text, &mark)),
3661 gdk_ic_set_attr (editable->ic, "preeditAttributes",
3662 "spotLocation", &spot,
3663 "lineSpace", LINE_HEIGHT (*start_line),
3664 "foreground", MARK_CURRENT_FORE (text, &mark)->pixel,
3665 "background", MARK_CURRENT_BACK (text, &mark)->pixel,
3672 find_cursor (GtkText* text, gboolean scroll)
3674 if (GTK_WIDGET_REALIZED (text))
3676 find_line_containing_point (text, text->cursor_mark.index, scroll);
3678 if (text->current_line)
3679 find_cursor_at_line (text,
3680 &CACHE_DATA(text->current_line),
3681 pixel_height_of(text, text->current_line));
3684 GTK_EDITABLE (text)->current_pos = text->cursor_mark.index;
3688 find_mouse_cursor_at_line (GtkText *text, const LineParams* lp,
3689 guint line_pixel_height,
3692 GtkPropertyMark mark = lp->start;
3693 TabStopMark tab_mark = lp->tab_cont.tab_start;
3695 gint char_width = find_char_width(text, &mark, &tab_mark);
3696 gint pixel_width = LINE_START_PIXEL (*lp) + (char_width+1)/2;
3698 text->cursor_pos_y = line_pixel_height;
3702 gchar ch = LAST_INDEX (text, mark) ?
3703 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3705 if (button_x < pixel_width || mark.index == lp->end.index)
3707 text->cursor_pos_x = pixel_width - (char_width+1)/2;
3708 text->cursor_mark = mark;
3709 text->cursor_char_offset = lp->font_descent;
3712 text->cursor_char = ch;
3714 text->cursor_char = 0;
3719 advance_tab_mark (text, &tab_mark, ch);
3720 advance_mark (&mark);
3722 pixel_width += char_width/2;
3724 char_width = find_char_width (text, &mark, &tab_mark);
3726 pixel_width += (char_width+1)/2;
3731 find_mouse_cursor (GtkText* text, gint x, gint y)
3734 GList* cache = text->line_start_cache;
3738 pixel_height = - text->first_cut_pixels;
3740 for (; cache; cache = cache->next)
3742 pixel_height += LINE_HEIGHT(CACHE_DATA(cache));
3744 if (y < pixel_height || !cache->next)
3746 find_mouse_cursor_at_line (text, &CACHE_DATA(cache), pixel_height, x);
3748 find_cursor (text, FALSE);
3755 /**********************************************************************/
3757 /**********************************************************************/
3760 free_cache (GtkText* text)
3762 GList* cache = text->line_start_cache;
3767 cache = cache->prev;
3769 text->line_start_cache = cache;
3772 for (; cache; cache = cache->next)
3773 g_mem_chunk_free (params_mem_chunk, cache->data);
3775 g_list_free (text->line_start_cache);
3777 text->line_start_cache = NULL;
3781 remove_cache_line (GtkText* text, GList* member)
3788 if (member == text->line_start_cache)
3789 text->line_start_cache = text->line_start_cache->next;
3792 member->prev->next = member->next;
3795 member->next->prev = member->prev;
3797 list = member->next;
3799 g_mem_chunk_free (params_mem_chunk, member->data);
3800 g_list_free_1 (member);
3805 /**********************************************************************/
3807 /**********************************************************************/
3810 move_cursor_buffer_ver (GtkText *text, int dir)
3812 undraw_cursor (text, FALSE);
3816 scroll_int (text, text->vadj->upper);
3817 text->cursor_mark = find_this_line_start_mark (text,
3819 &text->cursor_mark);
3823 scroll_int (text, - text->vadj->value);
3824 text->cursor_mark = find_this_line_start_mark (text,
3826 &text->cursor_mark);
3829 find_cursor (text, TRUE);
3830 draw_cursor (text, FALSE);
3834 move_cursor_page_ver (GtkText *text, int dir)
3836 scroll_int (text, dir * text->vadj->page_increment);
3840 move_cursor_ver (GtkText *text, int count)
3843 GtkPropertyMark mark;
3846 mark = find_this_line_start_mark (text, text->cursor_mark.index, &text->cursor_mark);
3847 offset = text->cursor_mark.index - mark.index;
3849 if (offset > text->cursor_virtual_x)
3850 text->cursor_virtual_x = offset;
3854 if (mark.index == 0)
3857 decrement_mark (&mark);
3858 mark = find_this_line_start_mark (text, mark.index, &mark);
3862 mark = text->cursor_mark;
3864 while (!LAST_INDEX(text, mark) && GTK_TEXT_INDEX(text, mark.index) != LINE_DELIM)
3865 advance_mark (&mark);
3867 if (LAST_INDEX(text, mark))
3870 advance_mark (&mark);
3873 for (i=0; i < text->cursor_virtual_x; i += 1, advance_mark(&mark))
3874 if (LAST_INDEX(text, mark) || GTK_TEXT_INDEX(text, mark.index) == LINE_DELIM)
3877 undraw_cursor (text, FALSE);
3879 text->cursor_mark = mark;
3881 find_cursor (text, TRUE);
3883 draw_cursor (text, FALSE);
3887 move_cursor_hor (GtkText *text, int count)
3889 /* count should be +-1. */
3890 if ( (count > 0 && text->cursor_mark.index + count > TEXT_LENGTH(text)) ||
3891 (count < 0 && text->cursor_mark.index < (- count)) ||
3895 text->cursor_virtual_x = 0;
3897 undraw_cursor (text, FALSE);
3899 move_mark_n (&text->cursor_mark, count);
3901 find_cursor (text, TRUE);
3903 draw_cursor (text, FALSE);
3907 gtk_text_move_cursor (GtkEditable *editable,
3914 move_cursor_hor (GTK_TEXT (editable), 1);
3919 move_cursor_hor (GTK_TEXT (editable), -1);
3925 move_cursor_ver (GTK_TEXT (editable), 1);
3930 move_cursor_ver (GTK_TEXT (editable), -1);
3935 gtk_text_move_forward_character (GtkText *text)
3937 move_cursor_hor (text, 1);
3941 gtk_text_move_backward_character (GtkText *text)
3943 move_cursor_hor (text, -1);
3947 gtk_text_move_next_line (GtkText *text)
3949 move_cursor_ver (text, 1);
3953 gtk_text_move_previous_line (GtkText *text)
3955 move_cursor_ver (text, -1);
3959 gtk_text_move_word (GtkEditable *editable,
3965 gtk_text_move_forward_word (GTK_TEXT (editable));
3970 gtk_text_move_backward_word (GTK_TEXT (editable));
3975 gtk_text_move_forward_word (GtkText *text)
3977 text->cursor_virtual_x = 0;
3979 undraw_cursor (text, FALSE);
3981 while (!LAST_INDEX (text, text->cursor_mark) &&
3982 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3983 advance_mark (&text->cursor_mark);
3985 while (!LAST_INDEX (text, text->cursor_mark) &&
3986 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3987 advance_mark (&text->cursor_mark);
3989 find_cursor (text, TRUE);
3990 draw_cursor (text, FALSE);
3994 gtk_text_move_backward_word (GtkText *text)
3996 text->cursor_virtual_x = 0;
3998 undraw_cursor (text, FALSE);
4000 while ((text->cursor_mark.index > 0) &&
4001 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4002 decrement_mark (&text->cursor_mark);
4004 while ((text->cursor_mark.index > 0) &&
4005 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4006 decrement_mark (&text->cursor_mark);
4008 find_cursor (text, TRUE);
4009 draw_cursor (text, FALSE);
4013 gtk_text_move_page (GtkEditable *editable,
4018 scroll_int (GTK_TEXT (editable),
4019 y * GTK_TEXT(editable)->vadj->page_increment);
4023 gtk_text_move_to_row (GtkEditable *editable,
4029 gtk_text_move_to_column (GtkEditable *editable,
4034 text = GTK_TEXT (editable);
4036 text->cursor_virtual_x = 0; /* FIXME */
4038 undraw_cursor (text, FALSE);
4040 /* Move to the beginning of the line */
4041 while ((text->cursor_mark.index > 0) &&
4042 (GTK_TEXT_INDEX (text, text->cursor_mark.index - 1) != LINE_DELIM))
4043 decrement_mark (&text->cursor_mark);
4045 while (!LAST_INDEX (text, text->cursor_mark) &&
4046 (GTK_TEXT_INDEX (text, text->cursor_mark.index) != LINE_DELIM))
4050 else if (column == 0)
4053 advance_mark (&text->cursor_mark);
4056 find_cursor (text, TRUE);
4057 draw_cursor (text, FALSE);
4061 gtk_text_move_beginning_of_line (GtkText *text)
4063 gtk_text_move_to_column (GTK_EDITABLE (text), 0);
4068 gtk_text_move_end_of_line (GtkText *text)
4070 gtk_text_move_to_column (GTK_EDITABLE (text), -1);
4074 gtk_text_kill_char (GtkEditable *editable,
4079 text = GTK_TEXT (editable);
4081 if (editable->selection_start_pos != editable->selection_end_pos)
4082 gtk_editable_delete_selection (editable);
4087 if (text->point.index + 1 <= TEXT_LENGTH (text))
4088 gtk_editable_delete_text (editable, text->point.index, text->point.index + 1);
4092 if (text->point.index > 0)
4093 gtk_editable_delete_text (editable, text->point.index - 1, text->point.index);
4099 gtk_text_delete_forward_character (GtkText *text)
4101 gtk_text_kill_char (GTK_EDITABLE (text), 1);
4105 gtk_text_delete_backward_character (GtkText *text)
4107 gtk_text_kill_char (GTK_EDITABLE (text), -1);
4111 gtk_text_kill_word (GtkEditable *editable,
4114 if (editable->selection_start_pos != editable->selection_end_pos)
4115 gtk_editable_delete_selection (editable);
4118 gint old_pos = editable->current_pos;
4121 gtk_text_move_word (editable, 1);
4122 gtk_editable_delete_text (editable, old_pos, editable->current_pos);
4126 gtk_text_move_word (editable, -1);
4127 gtk_editable_delete_text (editable, editable->current_pos, old_pos);
4133 gtk_text_delete_forward_word (GtkText *text)
4135 gtk_text_kill_word (GTK_EDITABLE (text), 1);
4139 gtk_text_delete_backward_word (GtkText *text)
4141 gtk_text_kill_word (GTK_EDITABLE (text), -1);
4145 gtk_text_kill_line (GtkEditable *editable,
4148 gint old_pos = editable->current_pos;
4151 gtk_text_move_to_column (editable, -1);
4152 gtk_editable_delete_text (editable, old_pos, editable->current_pos);
4156 gtk_text_move_to_column (editable, 0);
4157 gtk_editable_delete_text (editable, editable->current_pos, old_pos);
4162 gtk_text_delete_line (GtkText *text)
4164 gtk_text_move_to_column (GTK_EDITABLE (text), 0);
4165 gtk_text_kill_line (GTK_EDITABLE (text), 1);
4169 gtk_text_delete_to_line_end (GtkText *text)
4171 gtk_text_kill_line (GTK_EDITABLE (text), 1);
4175 gtk_text_select_word (GtkText *text, guint32 time)
4180 GtkEditable *editable;
4181 editable = GTK_EDITABLE (text);
4183 gtk_text_move_backward_word (text);
4184 start_pos = text->cursor_mark.index;
4186 gtk_text_move_forward_word (text);
4187 end_pos = text->cursor_mark.index;
4189 editable->has_selection = TRUE;
4190 gtk_text_set_selection (editable, start_pos, end_pos);
4191 gtk_editable_claim_selection (editable, start_pos != end_pos, time);
4195 gtk_text_select_line (GtkText *text, guint32 time)
4200 GtkEditable *editable;
4201 editable = GTK_EDITABLE (text);
4203 gtk_text_move_beginning_of_line (text);
4204 start_pos = text->cursor_mark.index;
4206 gtk_text_move_end_of_line (text);
4207 gtk_text_move_forward_character (text);
4208 end_pos = text->cursor_mark.index;
4210 editable->has_selection = TRUE;
4211 gtk_text_set_selection (editable, start_pos, end_pos);
4212 gtk_editable_claim_selection (editable, start_pos != end_pos, time);
4215 /**********************************************************************/
4217 /**********************************************************************/
4220 adjust_adj (GtkText* text, GtkAdjustment* adj)
4224 gdk_window_get_size (text->text_area, NULL, &height);
4226 adj->step_increment = MIN (adj->upper, (float) SCROLL_PIXELS);
4227 adj->page_increment = MIN (adj->upper, height - (float) KEY_SCROLL_PIXELS);
4228 adj->page_size = MIN (adj->upper, height);
4229 adj->value = MIN (adj->value, adj->upper - adj->page_size);
4230 adj->value = MAX (adj->value, 0.0);
4232 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
4236 set_vertical_scroll_iterator (GtkText* text, LineParams* lp, void* data)
4238 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4240 if ((text->first_line_start_index >= lp->start.index) &&
4241 (text->first_line_start_index <= lp->end.index))
4243 svdata->mark = lp->start;
4245 if (text->first_line_start_index == lp->start.index)
4247 text->first_onscreen_ver_pixel = svdata->pixel_height + text->first_cut_pixels;
4251 text->first_onscreen_ver_pixel = svdata->pixel_height;
4252 text->first_cut_pixels = 0;
4255 text->vadj->value = (float) text->first_onscreen_ver_pixel;
4258 svdata->pixel_height += LINE_HEIGHT (*lp);
4264 set_vertical_scroll_find_iterator (GtkText* text, LineParams* lp, void* data)
4266 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4269 if (svdata->pixel_height <= (gint) text->vadj->value &&
4270 svdata->pixel_height + LINE_HEIGHT(*lp) > (gint) text->vadj->value)
4272 svdata->mark = lp->start;
4274 text->first_cut_pixels = (gint)text->vadj->value - svdata->pixel_height;
4275 text->first_onscreen_ver_pixel = svdata->pixel_height;
4276 text->first_line_start_index = lp->start.index;
4282 svdata->pixel_height += LINE_HEIGHT (*lp);
4290 static GtkPropertyMark
4291 set_vertical_scroll (GtkText* text)
4293 GtkPropertyMark mark = find_mark (text, 0);
4294 SetVerticalScrollData data;
4298 data.pixel_height = 0;
4299 line_params_iterate (text, &mark, NULL, FALSE, &data, set_vertical_scroll_iterator);
4301 text->vadj->upper = (float) data.pixel_height;
4302 orig_value = (gint) text->vadj->value;
4304 gdk_window_get_size (text->text_area, NULL, &height);
4306 text->vadj->step_increment = MIN (text->vadj->upper, (float) SCROLL_PIXELS);
4307 text->vadj->page_increment = MIN (text->vadj->upper, height - (float) KEY_SCROLL_PIXELS);
4308 text->vadj->page_size = MIN (text->vadj->upper, height);
4309 text->vadj->value = MIN (text->vadj->value, text->vadj->upper - text->vadj->page_size);
4310 text->vadj->value = MAX (text->vadj->value, 0.0);
4312 text->last_ver_value = (gint)text->vadj->value;
4314 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "changed");
4316 if (text->vadj->value != orig_value)
4318 /* We got clipped, and don't really know which line to put first. */
4319 data.pixel_height = 0;
4320 data.last_didnt_wrap = TRUE;
4322 line_params_iterate (text, &mark, NULL,
4324 set_vertical_scroll_find_iterator);
4331 scroll_int (GtkText* text, gint diff)
4335 text->vadj->value += diff;
4337 upper = text->vadj->upper - text->vadj->page_size;
4338 text->vadj->value = MIN (text->vadj->value, upper);
4339 text->vadj->value = MAX (text->vadj->value, 0.0);
4341 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "value_changed");
4345 process_exposes (GtkText *text)
4349 /* Make sure graphics expose events are processed before scrolling
4352 while ((event = gdk_event_get_graphics_expose (text->text_area)) != NULL)
4354 gtk_widget_event (GTK_WIDGET (text), event);
4355 if (event->expose.count == 0)
4357 gdk_event_free (event);
4360 gdk_event_free (event);
4364 static gint last_visible_line_height (GtkText* text)
4366 GList *cache = text->line_start_cache;
4369 gdk_window_get_size (text->text_area, NULL, &height);
4371 for (; cache->next; cache = cache->next)
4372 if (pixel_height_of(text, cache->next) > height)
4376 return pixel_height_of(text, cache) - 1;
4381 static gint first_visible_line_height (GtkText* text)
4383 if (text->first_cut_pixels)
4384 return pixel_height_of(text, text->line_start_cache) + 1;
4390 scroll_down (GtkText* text, gint diff0)
4396 text->first_onscreen_ver_pixel += diff0;
4400 g_assert (text->line_start_cache);
4402 if (text->first_cut_pixels < LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1)
4404 text->first_cut_pixels += 1;
4408 text->first_cut_pixels = 0;
4410 text->line_start_cache = text->line_start_cache->next;
4412 text->first_line_start_index =
4413 CACHE_DATA(text->line_start_cache).start.index;
4415 if (!text->line_start_cache->next)
4416 fetch_lines_forward (text, 1);
4422 gdk_window_get_size (text->text_area, &width, &height);
4423 if (height > real_diff)
4424 gdk_draw_pixmap (text->text_area,
4432 height - real_diff);
4435 rect.y = MAX (0, height - real_diff);
4437 rect.height = MIN (height, real_diff);
4439 expose_text (text, &rect, FALSE);
4440 gtk_text_draw_focus ( (GtkWidget *) text);
4442 if (text->current_line)
4446 text->cursor_pos_y -= real_diff;
4447 cursor_min = drawn_cursor_min(text);
4450 find_mouse_cursor (text, text->cursor_pos_x,
4451 first_visible_line_height (text));
4454 if (height > real_diff)
4455 process_exposes (text);
4459 scroll_up (GtkText* text, gint diff0)
4465 text->first_onscreen_ver_pixel += diff0;
4469 g_assert (text->line_start_cache);
4471 if (text->first_cut_pixels > 0)
4473 text->first_cut_pixels -= 1;
4477 if (!text->line_start_cache->prev)
4478 fetch_lines_backward (text);
4480 text->line_start_cache = text->line_start_cache->prev;
4482 text->first_line_start_index =
4483 CACHE_DATA(text->line_start_cache).start.index;
4485 text->first_cut_pixels = LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1;
4491 gdk_window_get_size (text->text_area, &width, &height);
4492 if (height > real_diff)
4493 gdk_draw_pixmap (text->text_area,
4501 height - real_diff);
4506 rect.height = MIN (height, real_diff);
4508 expose_text (text, &rect, FALSE);
4509 gtk_text_draw_focus ( (GtkWidget *) text);
4511 if (text->current_line)
4516 text->cursor_pos_y += real_diff;
4517 cursor_max = drawn_cursor_max(text);
4518 gdk_window_get_size (text->text_area, NULL, &height);
4520 if (cursor_max >= height)
4521 find_mouse_cursor (text, text->cursor_pos_x,
4522 last_visible_line_height (text));
4525 if (height > real_diff)
4526 process_exposes (text);
4529 /**********************************************************************/
4531 /**********************************************************************/
4533 /* Assumes mark starts a line. Calculates the height, width, and
4534 * displayable character count of a single DISPLAYABLE line. That
4535 * means that in line-wrap mode, this does may not compute the
4536 * properties of an entire line. */
4538 find_line_params (GtkText* text,
4539 const GtkPropertyMark* mark,
4540 const PrevTabCont *tab_cont,
4541 PrevTabCont *next_cont)
4544 TabStopMark tab_mark = tab_cont->tab_start;
4545 guint max_display_pixels;
4550 gdk_window_get_size (text->text_area, (gint*) &max_display_pixels, NULL);
4551 max_display_pixels -= LINE_WRAP_ROOM;
4554 lp.tab_cont = *tab_cont;
4557 lp.pixel_width = tab_cont->pixel_offset;
4558 lp.displayable_chars = 0;
4560 lp.font_descent = 0;
4562 init_tab_cont (text, next_cont);
4564 while (!LAST_INDEX(text, lp.end))
4566 g_assert (lp.end.property);
4568 ch = GTK_TEXT_INDEX (text, lp.end.index);
4569 font = MARK_CURRENT_FONT (text, &lp.end);
4571 if (ch == LINE_DELIM)
4573 /* Newline doesn't count in computation of line height, even
4574 * if its in a bigger font than the rest of the line. Unless,
4575 * of course, there are no other characters. */
4577 if (!lp.font_ascent && !lp.font_descent)
4579 lp.font_ascent = font->ascent;
4580 lp.font_descent = font->descent;
4583 lp.tab_cont_next = *next_cont;
4588 ch_width = find_char_width (text, &lp.end, &tab_mark);
4590 if ((ch_width + lp.pixel_width > max_display_pixels) &&
4591 (lp.end.index > lp.start.index))
4595 if (text->line_wrap)
4597 next_cont->tab_start = tab_mark;
4598 next_cont->pixel_offset = 0;
4602 /* Here's the tough case, a tab is wrapping. */
4603 gint pixels_avail = max_display_pixels - lp.pixel_width;
4604 gint space_width = MARK_CURRENT_TEXT_FONT(text, &lp.end)->char_widths[' '];
4605 gint spaces_avail = pixels_avail / space_width;
4607 if (spaces_avail == 0)
4609 decrement_mark (&lp.end);
4613 advance_tab_mark (text, &next_cont->tab_start, '\t');
4614 next_cont->pixel_offset = space_width * (tab_mark.to_next_tab -
4616 lp.displayable_chars += 1;
4621 if (text->word_wrap)
4623 GtkPropertyMark saved_mark = lp.end;
4624 guint saved_characters = lp.displayable_chars;
4626 lp.displayable_chars += 1;
4628 while (!isspace (GTK_TEXT_INDEX (text, lp.end.index)) &&
4629 (lp.end.index > lp.start.index))
4631 decrement_mark (&lp.end);
4632 lp.displayable_chars -= 1;
4635 /* If whole line is one word, revert to char wrapping */
4636 if (lp.end.index == lp.start.index)
4638 lp.end = saved_mark;
4639 lp.displayable_chars = saved_characters;
4640 decrement_mark (&lp.end);
4645 /* Don't include this character, it will wrap. */
4646 decrement_mark (&lp.end);
4650 lp.tab_cont_next = *next_cont;
4657 lp.displayable_chars += 1;
4660 lp.font_ascent = MAX (font->ascent, lp.font_ascent);
4661 lp.font_descent = MAX (font->descent, lp.font_descent);
4662 lp.pixel_width += ch_width;
4664 advance_mark(&lp.end);
4665 advance_tab_mark (text, &tab_mark, ch);
4668 if (LAST_INDEX(text, lp.start))
4670 /* Special case, empty last line. */
4671 font = MARK_CURRENT_FONT (text, &lp.end);
4673 lp.font_ascent = font->ascent;
4674 lp.font_descent = font->descent;
4677 lp.tab_cont_next = *next_cont;
4683 expand_scratch_buffer (GtkText* text, guint len)
4685 if (len >= text->scratch_buffer_len)
4689 while (i <= len && i < MIN_GAP_SIZE) i <<= 1;
4691 if (text->scratch_buffer)
4692 text->scratch_buffer = g_new (guchar, i);
4694 text->scratch_buffer = g_realloc (text->scratch_buffer, i);
4696 text->scratch_buffer_len = i;
4700 /* Side effect: modifies text->gc
4704 draw_bg_rect (GtkText* text, GtkPropertyMark *mark,
4705 gint x, gint y, gint width, gint height,
4706 gboolean already_cleared)
4708 GtkEditable *editable = GTK_EDITABLE(text);
4710 if ((mark->index >= MIN(editable->selection_start_pos, editable->selection_end_pos) &&
4711 mark->index < MAX(editable->selection_start_pos, editable->selection_end_pos)))
4713 gtk_paint_flat_box(GTK_WIDGET(text)->style, text->text_area,
4714 editable->has_selection ?
4715 GTK_STATE_SELECTED : GTK_STATE_ACTIVE,
4717 NULL, GTK_WIDGET(text), "text",
4718 x, y, width, height);
4720 else if (!gdk_color_equal(MARK_CURRENT_BACK (text, mark),
4721 >K_WIDGET(text)->style->base[GTK_STATE_NORMAL]))
4723 gdk_gc_set_foreground (text->gc, MARK_CURRENT_BACK (text, mark));
4725 gdk_draw_rectangle (text->text_area,
4727 TRUE, x, y, width, height);
4729 else if (GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL])
4736 rect.height = height;
4738 clear_area (text, &rect);
4740 else if (!already_cleared)
4741 gdk_window_clear_area (text->text_area, x, y, width, height);
4745 draw_line (GtkText* text,
4746 gint pixel_start_height,
4749 GdkGCValues gc_values;
4752 guint running_offset = lp->tab_cont.pixel_offset;
4756 GtkEditable *editable = GTK_EDITABLE(text);
4758 guint selection_start_pos = MIN (editable->selection_start_pos, editable->selection_end_pos);
4759 guint selection_end_pos = MAX (editable->selection_start_pos, editable->selection_end_pos);
4761 GtkPropertyMark mark = lp->start;
4762 TabStopMark tab_mark = lp->tab_cont.tab_start;
4763 gint pixel_height = pixel_start_height + lp->font_ascent;
4764 guint chars = lp->displayable_chars;
4766 /* First provide a contiguous segment of memory. This makes reading
4767 * the code below *much* easier, and only incurs the cost of copying
4768 * when the line being displayed spans the gap. */
4769 if (mark.index <= text->gap_position &&
4770 mark.index + chars > text->gap_position)
4772 expand_scratch_buffer (text, chars);
4774 for (i = 0; i < chars; i += 1)
4775 text->scratch_buffer[i] = GTK_TEXT_INDEX(text, mark.index + i);
4777 buffer = text->scratch_buffer;
4781 if (mark.index >= text->gap_position)
4782 buffer = text->text + mark.index + text->gap_size;
4784 buffer = text->text + mark.index;
4788 if (running_offset > 0)
4790 draw_bg_rect (text, &mark, 0, pixel_start_height, running_offset,
4791 LINE_HEIGHT (*lp), TRUE);
4794 for (; chars > 0; chars -= len, buffer += len, len = 0)
4796 if (buffer[0] != '\t')
4798 guchar* next_tab = memchr (buffer, '\t', chars);
4802 len = MIN (MARK_CURRENT_PROPERTY (&mark)->length - mark.offset, chars);
4805 len = MIN (len, next_tab - buffer);
4807 if (mark.index < selection_start_pos)
4808 len = MIN (len, selection_start_pos - mark.index);
4809 else if (mark.index < selection_end_pos)
4810 len = MIN (len, selection_end_pos - mark.index);
4812 font = MARK_CURRENT_FONT (text, &mark);
4813 if (font->type == GDK_FONT_FONT)
4815 gdk_gc_set_font (text->gc, font);
4816 gdk_gc_get_values (text->gc, &gc_values);
4817 pixel_width = gdk_text_width (gc_values.font,
4818 (gchar*) buffer, len);
4821 pixel_width = gdk_text_width (font, (gchar*) buffer, len);
4823 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4824 pixel_width, LINE_HEIGHT (*lp), TRUE);
4826 if ((mark.index >= selection_start_pos) &&
4827 (mark.index < selection_end_pos))
4829 if (editable->has_selection)
4830 fg_gc = GTK_WIDGET(text)->style->fg_gc[GTK_STATE_SELECTED];
4832 fg_gc = GTK_WIDGET(text)->style->fg_gc[GTK_STATE_ACTIVE];
4836 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &mark));
4840 gdk_draw_text (text->text_area, MARK_CURRENT_FONT (text, &mark),
4847 running_offset += pixel_width;
4849 advance_tab_mark_n (text, &tab_mark, len);
4853 gint pixels_remaining;
4859 gdk_window_get_size (text->text_area, &pixels_remaining, NULL);
4860 pixels_remaining -= (LINE_WRAP_ROOM + running_offset);
4862 space_width = MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
4864 spaces_avail = pixels_remaining / space_width;
4865 spaces_avail = MIN (spaces_avail, tab_mark.to_next_tab);
4867 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4868 spaces_avail * space_width, LINE_HEIGHT (*lp), TRUE);
4870 running_offset += tab_mark.to_next_tab *
4871 MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
4873 advance_tab_mark (text, &tab_mark, '\t');
4876 advance_mark_n (&mark, len);
4881 draw_line_wrap (GtkText* text, guint height /* baseline height */)
4888 if (text->line_wrap)
4890 bitmap = text->line_wrap_bitmap;
4891 bitmap_width = line_wrap_width;
4892 bitmap_height = line_wrap_height;
4896 bitmap = text->line_arrow_bitmap;
4897 bitmap_width = line_arrow_width;
4898 bitmap_height = line_arrow_height;
4901 gdk_window_get_size (text->text_area, &width, NULL);
4902 width -= LINE_WRAP_ROOM;
4904 gdk_gc_set_stipple (text->gc,
4907 gdk_gc_set_fill (text->gc, GDK_STIPPLED);
4909 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
4911 gdk_gc_set_ts_origin (text->gc,
4913 height - bitmap_height - 1);
4915 gdk_draw_rectangle (text->text_area,
4919 height - bitmap_height - 1 /* one pixel above the baseline. */,
4923 gdk_gc_set_ts_origin (text->gc, 0, 0);
4925 gdk_gc_set_fill (text->gc, GDK_SOLID);
4929 undraw_cursor (GtkText* text, gint absolute)
4931 GtkEditable *editable = (GtkEditable *)text;
4933 TDEBUG (("in undraw_cursor\n"));
4936 text->cursor_drawn_level = 0;
4938 if ((text->cursor_drawn_level ++ == 0) &&
4939 (editable->selection_start_pos == editable->selection_end_pos) &&
4940 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
4944 g_assert(text->cursor_mark.property);
4946 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
4948 draw_bg_rect (text, &text->cursor_mark,
4950 text->cursor_pos_y - text->cursor_char_offset - font->ascent,
4951 1, font->ascent + 1, FALSE);
4953 if (text->cursor_char)
4955 if (font->type == GDK_FONT_FONT)
4956 gdk_gc_set_font (text->gc, font);
4958 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &text->cursor_mark));
4960 gdk_draw_text (text->text_area, font,
4963 text->cursor_pos_y - text->cursor_char_offset,
4971 drawn_cursor_min (GtkText* text)
4975 g_assert(text->cursor_mark.property);
4977 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
4979 return text->cursor_pos_y - text->cursor_char_offset - font->ascent;
4983 drawn_cursor_max (GtkText* text)
4987 g_assert(text->cursor_mark.property);
4989 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
4991 return text->cursor_pos_y - text->cursor_char_offset;
4995 draw_cursor (GtkText* text, gint absolute)
4997 GtkEditable *editable = (GtkEditable *)text;
4999 TDEBUG (("in draw_cursor\n"));
5002 text->cursor_drawn_level = 1;
5004 if ((--text->cursor_drawn_level == 0) &&
5005 editable->editable &&
5006 (editable->selection_start_pos == editable->selection_end_pos) &&
5007 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5011 g_assert (text->cursor_mark.property);
5013 font = MARK_CURRENT_FONT (text, &text->cursor_mark);
5015 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5017 gdk_draw_line (text->text_area, text->gc, text->cursor_pos_x,
5018 text->cursor_pos_y - text->cursor_char_offset,
5020 text->cursor_pos_y - text->cursor_char_offset - font->ascent);
5025 clear_area (GtkText *text, GdkRectangle *area)
5027 GtkWidget *widget = GTK_WIDGET (text);
5029 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
5032 gint x = area->x, y = area->y;
5035 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
5037 yorig = - text->first_onscreen_ver_pixel;
5038 xorig = - text->first_onscreen_hor_pixel;
5040 for (y = area->y; y < area->y + area->height; )
5042 gint yoff = (y - yorig) % height;
5043 gint yw = MIN(height - yoff, (area->y + area->height) - y);
5045 for (x = area->x; x < area->x + area->width; )
5047 gint xoff = (x - xorig) % width;
5048 gint xw = MIN(width - xoff, (area->x + area->width) - x);
5050 gdk_draw_pixmap (text->text_area,
5052 widget->style->bg_pixmap[GTK_STATE_NORMAL],
5066 gdk_window_clear_area (text->text_area, area->x, area->y, area->width, area->height);
5070 expose_text (GtkText* text, GdkRectangle *area, gboolean cursor)
5072 GList *cache = text->line_start_cache;
5073 gint pixels = - text->first_cut_pixels;
5074 gint min_y = MAX (0, area->y);
5075 gint max_y = MAX (0, area->y + area->height);
5078 gdk_window_get_size (text->text_area, NULL, &height);
5079 max_y = MIN (max_y, height);
5081 TDEBUG (("in expose x=%d y=%d w=%d h=%d\n", area->x, area->y, area->width, area->height));
5083 clear_area (text, area);
5085 for (; pixels < height; cache = cache->next)
5087 if (pixels < max_y && (pixels + (gint)LINE_HEIGHT(CACHE_DATA(cache))) >= min_y)
5089 draw_line (text, pixels, &CACHE_DATA(cache));
5091 if (CACHE_DATA(cache).wraps)
5092 draw_line_wrap (text, pixels + CACHE_DATA(cache).font_ascent);
5095 if (cursor && GTK_WIDGET_HAS_FOCUS (text))
5097 if (CACHE_DATA(cache).start.index <= text->cursor_mark.index &&
5098 CACHE_DATA(cache).end.index >= text->cursor_mark.index)
5100 /* We undraw and draw the cursor here to get the drawn
5101 * level right ... FIXME - maybe the second parameter
5102 * of draw_cursor should work differently
5104 undraw_cursor (text, FALSE);
5105 draw_cursor (text, FALSE);
5109 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5113 fetch_lines_forward (text, 1);
5122 gtk_text_update_text (GtkEditable *editable,
5126 GtkText *text = GTK_TEXT (editable);
5128 GList *cache = text->line_start_cache;
5129 gint pixels = - text->first_cut_pixels;
5135 end_pos = TEXT_LENGTH (text);
5137 if (end_pos < start_pos)
5140 gdk_window_get_size (text->text_area, &width, &height);
5146 TDEBUG (("in expose span start=%d stop=%d\n", start_pos, end_pos));
5148 for (; pixels < height; cache = cache->next)
5150 if (CACHE_DATA(cache).start.index < end_pos)
5152 if (CACHE_DATA(cache).end.index >= start_pos)
5155 area.y = MAX(0,pixels);
5156 area.height = pixels + LINE_HEIGHT(CACHE_DATA(cache)) - area.y;
5162 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5166 fetch_lines_forward (text, 1);
5174 expose_text (text, &area, TRUE);
5178 recompute_geometry (GtkText* text)
5180 GtkPropertyMark mark, start_mark;
5187 mark = start_mark = set_vertical_scroll (text);
5189 /* We need a real start of a line when calling fetch_lines().
5190 * not the start of a wrapped line.
5192 while (mark.index > 0 &&
5193 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
5194 decrement_mark (&mark);
5196 gdk_window_get_size (text->text_area, &width, &height);
5198 /* Fetch an entire line, to make sure that we get all the text
5199 * we backed over above, in addition to enough text to fill up
5200 * the space vertically
5203 new_lines = fetch_lines (text,
5209 mark = CACHE_DATA (g_list_last (new_lines)).end;
5210 if (!LAST_INDEX (text, mark))
5212 advance_mark (&mark);
5214 new_lines = g_list_concat (new_lines,
5219 height + text->first_cut_pixels));
5222 /* Now work forward to the actual first onscreen line */
5224 while (CACHE_DATA (new_lines).start.index < start_mark.index)
5225 new_lines = new_lines->next;
5227 text->line_start_cache = new_lines;
5229 find_cursor (text, TRUE);
5232 /**********************************************************************/
5234 /**********************************************************************/
5237 gtk_text_set_selection (GtkEditable *editable,
5241 GtkText *text = GTK_TEXT (editable);
5243 guint start1, end1, start2, end2;
5246 end = TEXT_LENGTH (text);
5248 start1 = MIN(start,end);
5249 end1 = MAX(start,end);
5250 start2 = MIN(editable->selection_start_pos, editable->selection_end_pos);
5251 end2 = MAX(editable->selection_start_pos, editable->selection_end_pos);
5253 if (start2 < start1)
5257 tmp = start1; start1 = start2; start2 = tmp;
5258 tmp = end1; end1 = end2; end2 = tmp;
5261 undraw_cursor (text, FALSE);
5262 editable->selection_start_pos = start;
5263 editable->selection_end_pos = end;
5264 draw_cursor (text, FALSE);
5266 /* Expose only what changed */
5268 if (start1 < start2)
5269 gtk_text_update_text (editable, start1, MIN(end1, start2));
5272 gtk_text_update_text (editable, MAX(end1, start2), end2);
5273 else if (end2 < end1)
5274 gtk_text_update_text (editable, end2, end1);
5278 /**********************************************************************/
5280 /**********************************************************************/
5282 #ifdef DEBUG_GTK_TEXT
5284 gtk_text_show_cache_line (GtkText *text, GList *cache,
5285 const char* what, const char* func, gint line)
5287 LineParams *lp = &CACHE_DATA(cache);
5290 if (cache == text->line_start_cache)
5291 g_message ("Line Start Cache: ");
5293 if (cache == text->current_line)
5294 g_message("Current Line: ");
5296 g_message ("%s:%d: cache line %s s=%d,e=%d,lh=%d (",
5304 for (i = lp->start.index; i < (lp->end.index + lp->wraps); i += 1)
5305 g_message ("%c", GTK_TEXT_INDEX (text, i));
5311 gtk_text_show_cache (GtkText *text, const char* func, gint line)
5313 GList *l = text->line_start_cache;
5319 /* back up to the absolute beginning of the line cache */
5323 g_message ("*** line cache ***\n");
5324 for (; l; l = l->next)
5325 gtk_text_show_cache_line (text, l, "all", func, line);
5329 gtk_text_assert_mark (GtkText *text,
5330 GtkPropertyMark *mark,
5331 GtkPropertyMark *before,
5332 GtkPropertyMark *after,
5337 GtkPropertyMark correct_mark = find_mark (text, mark->index);
5339 if (mark->offset != correct_mark.offset ||
5340 mark->property != correct_mark.property)
5341 g_warning ("incorrect %s text property marker in %s:%d, index %d -- bad!", where, msg, line, mark->index);
5345 gtk_text_assert (GtkText *text,
5349 GList* cache = text->line_start_cache;
5350 GtkPropertyMark* before_mark = NULL;
5351 GtkPropertyMark* after_mark = NULL;
5353 gtk_text_show_props (text, msg, line);
5355 for (; cache->prev; cache = cache->prev)
5358 g_message ("*** line markers ***\n");
5360 for (; cache; cache = cache->next)
5362 after_mark = &CACHE_DATA(cache).end;
5363 gtk_text_assert_mark (text, &CACHE_DATA(cache).start, before_mark, after_mark, msg, "start", line);
5364 before_mark = &CACHE_DATA(cache).start;
5367 after_mark = &CACHE_DATA(cache->next).start;
5371 gtk_text_assert_mark (text, &CACHE_DATA(cache).end, before_mark, after_mark, msg, "end", line);
5372 before_mark = &CACHE_DATA(cache).end;
5377 gtk_text_show_adj (GtkText *text,
5383 g_message ("*** adjustment ***\n");
5385 g_message ("%s:%d: %s adjustment l=%.1f u=%.1f v=%.1f si=%.1f pi=%.1f ps=%.1f\n",
5392 adj->step_increment,
5393 adj->page_increment,
5398 gtk_text_show_props (GtkText *text,
5402 GList* props = text->text_properties;
5405 g_message ("%s:%d: ", msg, line);
5407 for (; props; props = props->next)
5409 TextProperty *p = (TextProperty*)props->data;
5411 proplen += p->length;
5413 g_message ("[%d,%p,", p->length, p);
5414 if (p->flags & PROPERTY_FONT)
5415 g_message ("%p,", p->font);
5418 if (p->flags & PROPERTY_FOREGROUND)
5419 g_message ("%ld, ", p->fore_color.pixel);
5422 if (p->flags & PROPERTY_BACKGROUND)
5423 g_message ("%ld] ", p->back_color.pixel);
5430 if (proplen - 1 != TEXT_LENGTH(text))
5431 g_warning ("incorrect property list length in %s:%d -- bad!", msg, line);