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 const 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 const 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 static const 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->set_scroll_adjustments_signal =
575 gtk_signal_new ("set_scroll_adjustments",
578 GTK_SIGNAL_OFFSET (GtkTextClass, set_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->set_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 text->freeze_count = 0;
682 if (!params_mem_chunk)
683 params_mem_chunk = g_mem_chunk_new ("LineParams",
685 256 * sizeof (LineParams),
688 text->default_tab_width = 4;
689 text->tab_stops = NULL;
691 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
692 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
694 text->line_start_cache = NULL;
695 text->first_cut_pixels = 0;
697 text->line_wrap = TRUE;
698 text->word_wrap = FALSE;
703 text->current_font = NULL;
705 init_properties (text);
707 GTK_EDITABLE (text)->editable = FALSE;
709 gtk_editable_set_position (GTK_EDITABLE (text), 0);
713 gtk_text_new (GtkAdjustment *hadj,
719 g_return_val_if_fail (GTK_IS_ADJUSTMENT (hadj), NULL);
721 g_return_val_if_fail (GTK_IS_ADJUSTMENT (vadj), NULL);
723 text = gtk_widget_new (GTK_TYPE_TEXT,
732 gtk_text_set_word_wrap (GtkText *text,
735 g_return_if_fail (text != NULL);
736 g_return_if_fail (GTK_IS_TEXT (text));
738 text->word_wrap = (word_wrap != FALSE);
740 if (GTK_WIDGET_REALIZED (text))
742 recompute_geometry (text);
743 gtk_widget_queue_draw (GTK_WIDGET (text));
748 gtk_text_set_line_wrap (GtkText *text,
751 g_return_if_fail (text != NULL);
752 g_return_if_fail (GTK_IS_TEXT (text));
754 text->line_wrap = (line_wrap != FALSE);
756 if (GTK_WIDGET_REALIZED (text))
758 recompute_geometry (text);
759 gtk_widget_queue_draw (GTK_WIDGET (text));
764 gtk_text_set_editable (GtkText *text,
765 gboolean is_editable)
767 g_return_if_fail (text != NULL);
768 g_return_if_fail (GTK_IS_TEXT (text));
770 gtk_editable_set_editable (GTK_EDITABLE (text), is_editable);
774 gtk_text_real_set_editable (GtkEditable *editable,
775 gboolean is_editable)
779 g_return_if_fail (editable != NULL);
780 g_return_if_fail (GTK_IS_TEXT (editable));
782 text = GTK_TEXT (editable);
784 editable->editable = (is_editable != FALSE);
787 draw_cursor (text, TRUE);
789 undraw_cursor (text, TRUE);
793 gtk_text_set_adjustments (GtkText *text,
797 g_return_if_fail (text != NULL);
798 g_return_if_fail (GTK_IS_TEXT (text));
800 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
802 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
804 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
806 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
808 if (text->hadj && (text->hadj != hadj))
810 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
811 gtk_object_unref (GTK_OBJECT (text->hadj));
814 if (text->vadj && (text->vadj != vadj))
816 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
817 gtk_object_unref (GTK_OBJECT (text->vadj));
820 if (text->hadj != hadj)
823 gtk_object_ref (GTK_OBJECT (text->hadj));
824 gtk_object_sink (GTK_OBJECT (text->hadj));
826 gtk_signal_connect (GTK_OBJECT (text->hadj), "changed",
827 (GtkSignalFunc) gtk_text_adjustment,
829 gtk_signal_connect (GTK_OBJECT (text->hadj), "value_changed",
830 (GtkSignalFunc) gtk_text_adjustment,
832 gtk_signal_connect (GTK_OBJECT (text->hadj), "disconnect",
833 (GtkSignalFunc) gtk_text_disconnect,
835 gtk_text_adjustment (hadj, text);
838 if (text->vadj != vadj)
841 gtk_object_ref (GTK_OBJECT (text->vadj));
842 gtk_object_sink (GTK_OBJECT (text->vadj));
844 gtk_signal_connect (GTK_OBJECT (text->vadj), "changed",
845 (GtkSignalFunc) gtk_text_adjustment,
847 gtk_signal_connect (GTK_OBJECT (text->vadj), "value_changed",
848 (GtkSignalFunc) gtk_text_adjustment,
850 gtk_signal_connect (GTK_OBJECT (text->vadj), "disconnect",
851 (GtkSignalFunc) gtk_text_disconnect,
853 gtk_text_adjustment (vadj, text);
858 gtk_text_set_point (GtkText *text,
861 g_return_if_fail (text != NULL);
862 g_return_if_fail (GTK_IS_TEXT (text));
863 g_return_if_fail (index <= TEXT_LENGTH (text));
865 text->point = find_mark (text, index);
869 gtk_text_get_point (GtkText *text)
871 g_return_val_if_fail (text != NULL, 0);
872 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
874 return text->point.index;
878 gtk_text_get_length (GtkText *text)
880 g_return_val_if_fail (text != NULL, 0);
881 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
883 return TEXT_LENGTH (text);
887 gtk_text_freeze (GtkText *text)
889 g_return_if_fail (text != NULL);
890 g_return_if_fail (GTK_IS_TEXT (text));
892 text->freeze_count++;
896 gtk_text_thaw (GtkText *text)
898 g_return_if_fail (text != NULL);
899 g_return_if_fail (GTK_IS_TEXT (text));
901 if (text->freeze_count)
902 if (!(--text->freeze_count) && GTK_WIDGET_REALIZED (text))
904 recompute_geometry (text);
905 gtk_widget_queue_draw (GTK_WIDGET (text));
910 gtk_text_insert (GtkText *text,
917 GtkEditable *editable = GTK_EDITABLE (text);
918 gboolean frozen = FALSE;
920 gint new_line_count = 1;
921 guint old_height = 0;
925 g_return_if_fail (text != NULL);
926 g_return_if_fail (GTK_IS_TEXT (text));
929 length = strlen (chars);
936 if (!text->freeze_count && (length > FREEZE_LENGTH))
938 gtk_text_freeze (text);
942 if (!text->freeze_count && (text->line_start_cache != NULL))
944 find_line_containing_point (text, text->point.index, TRUE);
945 old_height = total_line_height (text, text->current_line, 1);
946 for (i=0; i<length; i++)
947 if (chars[i] == '\n')
951 if (text->point.index < text->first_line_start_index)
952 text->first_line_start_index += length;
954 if (text->point.index < editable->selection_start_pos)
955 editable->selection_start_pos += length;
956 if (text->point.index < editable->selection_end_pos)
957 editable->selection_end_pos += length;
958 /* We'll reset the cursor later anyways if we aren't frozen */
959 if (text->point.index < text->cursor_mark.index)
960 text->cursor_mark.index += length;
962 move_gap_to_point (text);
964 make_forward_space (text, length);
965 memcpy (text->text + text->gap_position, chars, length);
967 insert_text_property (text, font, fore, back, length);
969 text->gap_size -= length;
970 text->gap_position += length;
972 advance_mark_n (&text->point, length);
974 if (!text->freeze_count && text->line_start_cache != NULL)
975 insert_expose (text, old_height, length, new_line_count);
978 gtk_text_thaw (text);
982 gtk_text_backward_delete (GtkText *text,
985 g_return_val_if_fail (text != NULL, 0);
986 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
988 if (nchars > text->point.index || nchars <= 0)
991 gtk_text_set_point (text, text->point.index - nchars);
993 return gtk_text_forward_delete (text, nchars);
997 gtk_text_forward_delete (GtkText *text,
1000 guint old_lines, old_height;
1001 GtkEditable *editable = GTK_EDITABLE (text);
1002 gboolean frozen = FALSE;
1004 g_return_val_if_fail (text != NULL, 0);
1005 g_return_val_if_fail (GTK_IS_TEXT (text), 0);
1007 if (text->point.index + nchars > TEXT_LENGTH (text) || nchars <= 0)
1010 if (!text->freeze_count && nchars > FREEZE_LENGTH)
1012 gtk_text_freeze (text);
1016 if (!text->freeze_count && text->line_start_cache != NULL)
1018 /* We need to undraw the cursor here, since we may later
1019 * delete the cursor's property
1021 undraw_cursor (text, FALSE);
1022 find_line_containing_point (text, text->point.index, TRUE);
1023 compute_lines_pixels (text, nchars, &old_lines, &old_height);
1026 /* FIXME, or resizing after deleting will be odd */
1027 if (text->point.index < text->first_line_start_index)
1029 if (text->point.index + nchars >= text->first_line_start_index)
1031 text->first_line_start_index = text->point.index;
1032 while ((text->first_line_start_index > 0) &&
1033 (GTK_TEXT_INDEX (text, text->first_line_start_index - 1) != LINE_DELIM))
1034 text->first_line_start_index -= 1;
1038 text->first_line_start_index -= nchars;
1041 if (text->point.index < editable->selection_start_pos)
1042 editable->selection_start_pos -=
1043 MIN(nchars, editable->selection_start_pos - text->point.index);
1044 if (text->point.index < editable->selection_end_pos)
1045 editable->selection_end_pos -=
1046 MIN(nchars, editable->selection_end_pos - text->point.index);
1047 /* We'll reset the cursor later anyways if we aren't frozen */
1048 if (text->point.index < text->cursor_mark.index)
1049 move_mark_n (&text->cursor_mark,
1050 -MIN(nchars, text->cursor_mark.index - text->point.index));
1052 move_gap_to_point (text);
1054 text->gap_size += nchars;
1056 delete_text_property (text, nchars);
1058 if (!text->freeze_count && (text->line_start_cache != NULL))
1060 delete_expose (text, nchars, old_lines, old_height);
1061 draw_cursor (text, FALSE);
1065 gtk_text_thaw (text);
1071 gtk_text_set_position (GtkEditable *editable,
1074 GtkText *text = (GtkText *) editable;
1076 undraw_cursor (text, FALSE);
1077 text->cursor_mark = find_mark (text, position);
1078 find_cursor (text, TRUE);
1079 draw_cursor (text, FALSE);
1080 gtk_editable_select_region (editable, 0, 0);
1084 gtk_text_get_chars (GtkEditable *editable,
1094 g_return_val_if_fail (editable != NULL, NULL);
1095 g_return_val_if_fail (GTK_IS_TEXT (editable), NULL);
1096 text = GTK_TEXT (editable);
1099 end_pos = TEXT_LENGTH (text);
1101 if ((start_pos < 0) ||
1102 (end_pos > TEXT_LENGTH (text)) ||
1103 (end_pos < start_pos))
1106 nchars = end_pos - start_pos;
1108 retval = g_new (gchar, nchars+1);
1111 if (start_pos < text->gap_position)
1113 n = MIN (text->gap_position - start_pos, nchars);
1114 memcpy (p, &text->text[start_pos], n);
1120 if (start_pos+nchars >= text->gap_position)
1123 text->text + MAX (text->gap_position + text->gap_size,
1124 start_pos + text->gap_size),
1136 gtk_text_destroy (GtkObject *object)
1140 g_return_if_fail (object != NULL);
1141 g_return_if_fail (GTK_IS_TEXT (object));
1143 text = (GtkText*) object;
1145 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
1146 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
1150 gtk_timeout_remove (text->timer);
1154 GTK_OBJECT_CLASS(parent_class)->destroy (object);
1158 gtk_text_finalize (GtkObject *object)
1163 g_return_if_fail (object != NULL);
1164 g_return_if_fail (GTK_IS_TEXT (object));
1166 text = (GtkText *)object;
1168 gtk_object_unref (GTK_OBJECT (text->hadj));
1169 gtk_object_unref (GTK_OBJECT (text->vadj));
1171 /* Clean up the internal structures */
1172 g_free (text->text);
1175 tmp_list = text->text_properties;
1178 destroy_text_property (tmp_list->data);
1179 tmp_list = tmp_list->next;
1182 if (text->current_font)
1183 text_font_unref (text->current_font);
1185 g_list_free (text->text_properties);
1187 if (text->scratch_buffer)
1188 g_free (text->scratch_buffer);
1190 g_list_free (text->tab_stops);
1192 GTK_OBJECT_CLASS(parent_class)->finalize (object);
1196 gtk_text_realize (GtkWidget *widget)
1199 GtkEditable *editable;
1200 GdkWindowAttr attributes;
1201 gint attributes_mask;
1203 g_return_if_fail (widget != NULL);
1204 g_return_if_fail (GTK_IS_TEXT (widget));
1206 text = GTK_TEXT (widget);
1207 editable = GTK_EDITABLE (widget);
1208 GTK_WIDGET_SET_FLAGS (text, GTK_REALIZED);
1210 attributes.window_type = GDK_WINDOW_CHILD;
1211 attributes.x = widget->allocation.x;
1212 attributes.y = widget->allocation.y;
1213 attributes.width = widget->allocation.width;
1214 attributes.height = widget->allocation.height;
1215 attributes.wclass = GDK_INPUT_OUTPUT;
1216 attributes.visual = gtk_widget_get_visual (widget);
1217 attributes.colormap = gtk_widget_get_colormap (widget);
1218 attributes.event_mask = gtk_widget_get_events (widget);
1219 attributes.event_mask |= (GDK_EXPOSURE_MASK |
1220 GDK_BUTTON_PRESS_MASK |
1221 GDK_BUTTON_RELEASE_MASK |
1222 GDK_BUTTON_MOTION_MASK |
1223 GDK_ENTER_NOTIFY_MASK |
1224 GDK_LEAVE_NOTIFY_MASK |
1225 GDK_KEY_PRESS_MASK);
1226 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1228 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
1229 gdk_window_set_user_data (widget->window, text);
1231 attributes.x = (widget->style->klass->xthickness + TEXT_BORDER_ROOM);
1232 attributes.y = (widget->style->klass->ythickness + TEXT_BORDER_ROOM);
1233 attributes.width = MAX (1, (gint)widget->allocation.width - (gint)attributes.x * 2);
1234 attributes.height = MAX (1, (gint)widget->allocation.height - (gint)attributes.y * 2);
1236 text->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
1237 gdk_window_set_user_data (text->text_area, text);
1239 widget->style = gtk_style_attach (widget->style, widget->window);
1241 /* Can't call gtk_style_set_background here because it's handled specially */
1242 gdk_window_set_background (widget->window, &widget->style->base[GTK_STATE_NORMAL]);
1243 gdk_window_set_background (text->text_area, &widget->style->base[GTK_STATE_NORMAL]);
1245 text->line_wrap_bitmap = gdk_bitmap_create_from_data (text->text_area,
1246 (gchar*) line_wrap_bits,
1250 text->line_arrow_bitmap = gdk_bitmap_create_from_data (text->text_area,
1251 (gchar*) line_arrow_bits,
1255 text->gc = gdk_gc_new (text->text_area);
1256 gdk_gc_set_exposures (text->gc, TRUE);
1257 gdk_gc_set_foreground (text->gc, &widget->style->text[GTK_STATE_NORMAL]);
1260 if (gdk_im_ready ())
1267 GdkIMStyle supported_style = GDK_IM_PREEDIT_NONE |
1268 GDK_IM_PREEDIT_NOTHING |
1269 GDK_IM_PREEDIT_POSITION |
1270 GDK_IM_STATUS_NONE |
1271 GDK_IM_STATUS_NOTHING;
1273 if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
1274 supported_style &= ~GDK_IM_PREEDIT_POSITION;
1276 style = gdk_im_decide_style (supported_style);
1277 switch (style & GDK_IM_PREEDIT_MASK)
1279 case GDK_IM_PREEDIT_POSITION:
1280 if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
1282 g_warning ("over-the-spot style requires fontset");
1285 gdk_window_get_size (text->text_area, &width, &height);
1289 rect.height = height;
1293 editable->ic = gdk_ic_new (text->text_area, text->text_area,
1295 "spotLocation", &spot,
1297 "fontSet", GDK_FONT_XFONT (widget->style->font),
1301 editable->ic = gdk_ic_new (text->text_area, text->text_area,
1305 if (editable->ic == NULL)
1306 g_warning ("Can't create input context.");
1309 GdkColormap *colormap;
1311 mask = gdk_window_get_events (text->text_area);
1312 mask |= gdk_ic_get_events (editable->ic);
1313 gdk_window_set_events (text->text_area, mask);
1315 if ((colormap = gtk_widget_get_colormap (widget)) !=
1316 gtk_widget_get_default_colormap ())
1318 gdk_ic_set_attr (editable->ic, "preeditAttributes",
1319 "colorMap", GDK_COLORMAP_XCOLORMAP (colormap),
1326 realize_properties (text);
1327 gdk_window_show (text->text_area);
1328 init_properties (text);
1330 if (editable->selection_start_pos != editable->selection_end_pos)
1331 gtk_editable_claim_selection (editable, TRUE, GDK_CURRENT_TIME);
1333 recompute_geometry (text);
1337 gtk_text_style_set (GtkWidget *widget,
1338 GtkStyle *previous_style)
1342 g_return_if_fail (widget != NULL);
1343 g_return_if_fail (GTK_IS_TEXT (widget));
1345 text = GTK_TEXT (widget);
1346 if (GTK_WIDGET_REALIZED (widget))
1348 gdk_window_set_background (widget->window, &widget->style->base[GTK_STATE_NORMAL]);
1349 gdk_window_set_background (text->text_area, &widget->style->base[GTK_STATE_NORMAL]);
1351 recompute_geometry (text);
1354 if (text->current_font)
1355 text_font_unref (text->current_font);
1356 text->current_font = get_text_font (widget->style->font);
1358 if (GTK_WIDGET_DRAWABLE (widget))
1359 gdk_window_clear (widget->window);
1363 gtk_text_unrealize (GtkWidget *widget)
1367 g_return_if_fail (widget != NULL);
1368 g_return_if_fail (GTK_IS_TEXT (widget));
1370 text = GTK_TEXT (widget);
1372 gdk_window_set_user_data (text->text_area, NULL);
1373 gdk_window_destroy (text->text_area);
1374 text->text_area = NULL;
1376 gdk_gc_destroy (text->gc);
1379 gdk_pixmap_unref (text->line_wrap_bitmap);
1380 gdk_pixmap_unref (text->line_arrow_bitmap);
1382 unrealize_properties (text);
1384 if (GTK_WIDGET_CLASS (parent_class)->unrealize)
1385 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
1389 clear_focus_area (GtkText *text, gint area_x, gint area_y, gint area_width, gint area_height)
1391 GtkWidget *widget = GTK_WIDGET (text);
1393 gint ythick = TEXT_BORDER_ROOM + widget->style->klass->ythickness;
1394 gint xthick = TEXT_BORDER_ROOM + widget->style->klass->xthickness;
1400 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
1402 yorig = - text->first_onscreen_ver_pixel + ythick;
1403 xorig = - text->first_onscreen_hor_pixel + xthick;
1411 for (y = area_y; y < area_y + area_height; )
1413 gint yoff = (y - yorig) % height;
1414 gint yw = MIN(height - yoff, (area_y + area_height) - y);
1416 for (x = area_x; x < area_x + area_width; )
1418 gint xoff = (x - xorig) % width;
1419 gint xw = MIN(width - xoff, (area_x + area_width) - x);
1421 gdk_draw_pixmap (widget->window,
1423 widget->style->bg_pixmap[GTK_STATE_NORMAL],
1440 gtk_text_draw_focus (GtkWidget *widget)
1446 g_return_if_fail (widget != NULL);
1447 g_return_if_fail (GTK_IS_TEXT (widget));
1449 text = GTK_TEXT (widget);
1451 if (GTK_WIDGET_DRAWABLE (widget))
1453 gint ythick = widget->style->klass->ythickness;
1454 gint xthick = widget->style->klass->xthickness;
1455 gint xextra = TEXT_BORDER_ROOM;
1456 gint yextra = TEXT_BORDER_ROOM;
1458 TDEBUG (("in gtk_text_draw_focus\n"));
1462 width = widget->allocation.width;
1463 height = widget->allocation.height;
1465 if (GTK_WIDGET_HAS_FOCUS (widget))
1474 gtk_paint_focus (widget->style, widget->window,
1475 NULL, widget, "text",
1477 widget->allocation.width - 1,
1478 widget->allocation.height - 1);
1481 gtk_paint_shadow (widget->style, widget->window,
1482 GTK_STATE_NORMAL, GTK_SHADOW_IN,
1483 NULL, widget, "text",
1484 x, y, width, height);
1488 width -= 2 * xthick;
1489 height -= 2 * ythick;
1491 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1494 clear_focus_area (text, x, y, width, yextra);
1496 clear_focus_area (text, x, y + yextra,
1497 xextra, y + height - 2 * yextra);
1499 clear_focus_area (text, x + width - xextra, y + yextra,
1500 xextra, height - 2 * ythick);
1502 clear_focus_area (text, x, x + height - yextra, width, yextra);
1507 TDEBUG (("in gtk_text_draw_focus (undrawable !!!)\n"));
1512 gtk_text_size_request (GtkWidget *widget,
1513 GtkRequisition *requisition)
1520 g_return_if_fail (widget != NULL);
1521 g_return_if_fail (GTK_IS_TEXT (widget));
1522 g_return_if_fail (requisition != NULL);
1524 xthickness = widget->style->klass->xthickness + TEXT_BORDER_ROOM;
1525 ythickness = widget->style->klass->ythickness + TEXT_BORDER_ROOM;
1527 char_height = MIN_TEXT_HEIGHT_LINES * (widget->style->font->ascent +
1528 widget->style->font->descent);
1530 char_width = MIN_TEXT_WIDTH_LINES * (gdk_text_width (widget->style->font,
1531 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
1535 requisition->width = char_width + xthickness * 2;
1536 requisition->height = char_height + ythickness * 2;
1540 gtk_text_size_allocate (GtkWidget *widget,
1541 GtkAllocation *allocation)
1544 GtkEditable *editable;
1546 g_return_if_fail (widget != NULL);
1547 g_return_if_fail (GTK_IS_TEXT (widget));
1548 g_return_if_fail (allocation != NULL);
1550 text = GTK_TEXT (widget);
1551 editable = GTK_EDITABLE (widget);
1553 widget->allocation = *allocation;
1554 if (GTK_WIDGET_REALIZED (widget))
1556 gdk_window_move_resize (widget->window,
1557 allocation->x, allocation->y,
1558 allocation->width, allocation->height);
1560 gdk_window_move_resize (text->text_area,
1561 widget->style->klass->xthickness + TEXT_BORDER_ROOM,
1562 widget->style->klass->ythickness + TEXT_BORDER_ROOM,
1563 MAX (1, (gint)widget->allocation.width - (gint)(widget->style->klass->xthickness +
1564 (gint)TEXT_BORDER_ROOM) * 2),
1565 MAX (1, (gint)widget->allocation.height - (gint)(widget->style->klass->ythickness +
1566 (gint)TEXT_BORDER_ROOM) * 2));
1569 if (editable->ic && (gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION))
1574 gdk_window_get_size (text->text_area, &width, &height);
1578 rect.height = height;
1579 gdk_ic_set_attr (editable->ic, "preeditAttributes", "area", &rect, NULL);
1583 recompute_geometry (text);
1588 gtk_text_draw (GtkWidget *widget,
1591 g_return_if_fail (widget != NULL);
1592 g_return_if_fail (GTK_IS_TEXT (widget));
1593 g_return_if_fail (area != NULL);
1595 if (GTK_WIDGET_DRAWABLE (widget))
1597 expose_text (GTK_TEXT (widget), area, TRUE);
1598 gtk_widget_draw_focus (widget);
1603 gtk_text_expose (GtkWidget *widget,
1604 GdkEventExpose *event)
1606 g_return_val_if_fail (widget != NULL, FALSE);
1607 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1608 g_return_val_if_fail (event != NULL, FALSE);
1610 if (event->window == GTK_TEXT (widget)->text_area)
1612 TDEBUG (("in gtk_text_expose (expose)\n"));
1613 expose_text (GTK_TEXT (widget), &event->area, TRUE);
1615 else if (event->count == 0)
1617 TDEBUG (("in gtk_text_expose (focus)\n"));
1618 gtk_widget_draw_focus (widget);
1625 gtk_text_scroll_timeout (gpointer data)
1628 GdkEventMotion event;
1631 GdkModifierType mask;
1633 g_return_val_if_fail (GTK_IS_TEXT (data), FALSE);
1635 text = GTK_TEXT (data);
1638 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1640 if (!(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)))
1648 gtk_text_motion_notify (GTK_WIDGET (text), &event);
1654 gtk_text_button_press (GtkWidget *widget,
1655 GdkEventButton *event)
1658 GtkEditable *editable;
1659 static GdkAtom ctext_atom = GDK_NONE;
1661 g_return_val_if_fail (widget != NULL, FALSE);
1662 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1663 g_return_val_if_fail (event != NULL, FALSE);
1665 if (ctext_atom == GDK_NONE)
1666 ctext_atom = gdk_atom_intern ("COMPOUND_TEXT", FALSE);
1668 text = GTK_TEXT (widget);
1669 editable = GTK_EDITABLE (widget);
1671 if (text->button && (event->button != text->button))
1674 text->button = event->button;
1676 if (!GTK_WIDGET_HAS_FOCUS (widget))
1677 gtk_widget_grab_focus (widget);
1679 if (event->button == 1)
1681 switch (event->type)
1683 case GDK_BUTTON_PRESS:
1684 gtk_grab_add (widget);
1686 undraw_cursor (text, FALSE);
1687 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1688 draw_cursor (text, FALSE);
1690 /* Set it now, so we display things right. We'll unset it
1691 * later if things don't work out */
1692 editable->has_selection = TRUE;
1693 gtk_text_set_selection (GTK_EDITABLE(text),
1694 text->cursor_mark.index,
1695 text->cursor_mark.index);
1699 case GDK_2BUTTON_PRESS:
1700 gtk_text_select_word (text, event->time);
1703 case GDK_3BUTTON_PRESS:
1704 gtk_text_select_line (text, event->time);
1711 else if (event->type == GDK_BUTTON_PRESS)
1713 if ((event->button == 2) && editable->editable)
1715 if (editable->selection_start_pos == editable->selection_end_pos ||
1716 editable->has_selection)
1718 undraw_cursor (text, FALSE);
1719 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1720 draw_cursor (text, FALSE);
1724 gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
1725 ctext_atom, event->time);
1729 gtk_grab_add (widget);
1731 undraw_cursor (text, FALSE);
1732 find_mouse_cursor (text, event->x, event->y);
1733 draw_cursor (text, FALSE);
1735 gtk_text_set_selection (GTK_EDITABLE(text),
1736 text->cursor_mark.index,
1737 text->cursor_mark.index);
1739 editable->has_selection = FALSE;
1740 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
1741 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
1749 gtk_text_button_release (GtkWidget *widget,
1750 GdkEventButton *event)
1753 GtkEditable *editable;
1754 g_return_val_if_fail (widget != NULL, FALSE);
1755 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1756 g_return_val_if_fail (event != NULL, FALSE);
1758 text = GTK_TEXT (widget);
1760 gtk_grab_remove (widget);
1762 if (text->button != event->button)
1769 gtk_timeout_remove (text->timer);
1773 if (event->button == 1)
1775 text = GTK_TEXT (widget);
1776 editable = GTK_EDITABLE (widget);
1778 gtk_grab_remove (widget);
1780 editable->has_selection = FALSE;
1781 if (editable->selection_start_pos != editable->selection_end_pos)
1783 if (gtk_selection_owner_set (widget,
1784 GDK_SELECTION_PRIMARY,
1786 editable->has_selection = TRUE;
1788 gtk_text_update_text (editable, editable->selection_start_pos,
1789 editable->selection_end_pos);
1793 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
1794 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
1797 else if (event->button == 3)
1799 gtk_grab_remove (widget);
1802 undraw_cursor (text, FALSE);
1803 find_cursor (text, TRUE);
1804 draw_cursor (text, FALSE);
1810 gtk_text_motion_notify (GtkWidget *widget,
1811 GdkEventMotion *event)
1816 GdkModifierType mask;
1818 g_return_val_if_fail (widget != NULL, FALSE);
1819 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1820 g_return_val_if_fail (event != NULL, FALSE);
1822 text = GTK_TEXT (widget);
1826 mask = event->state;
1827 if (event->is_hint || (text->text_area != event->window))
1829 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1832 if ((text->button == 0) ||
1833 !(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)))
1836 gdk_window_get_size (text->text_area, NULL, &height);
1838 if ((y < 0) || (y > height))
1840 if (text->timer == 0)
1842 text->timer = gtk_timeout_add (SCROLL_TIME,
1843 gtk_text_scroll_timeout,
1847 scroll_int (text, y/2);
1849 scroll_int (text, (y - height)/2);
1855 undraw_cursor (GTK_TEXT (widget), FALSE);
1856 find_mouse_cursor (GTK_TEXT (widget), x, y);
1857 draw_cursor (GTK_TEXT (widget), FALSE);
1859 gtk_text_set_selection (GTK_EDITABLE(text),
1860 GTK_EDITABLE(text)->selection_start_pos,
1861 text->cursor_mark.index);
1867 gtk_text_insert_text (GtkEditable *editable,
1868 const gchar *new_text,
1869 gint new_text_length,
1872 GtkText *text = GTK_TEXT (editable);
1874 GdkColor *fore, *back;
1876 TextProperty *property;
1878 gtk_text_set_point (text, *position);
1880 property = MARK_CURRENT_PROPERTY (&text->point);
1881 font = property->flags & PROPERTY_FONT ? property->font->gdk_font : NULL;
1882 fore = property->flags & PROPERTY_FOREGROUND ? &property->fore_color : NULL;
1883 back = property->flags & PROPERTY_BACKGROUND ? &property->back_color : NULL;
1885 gtk_text_insert (text, font, fore, back, new_text, new_text_length);
1887 *position = text->point.index;
1891 gtk_text_delete_text (GtkEditable *editable,
1897 g_return_if_fail (start_pos >= 0);
1899 text = GTK_TEXT (editable);
1901 gtk_text_set_point (text, start_pos);
1903 end_pos = TEXT_LENGTH (text);
1905 if (end_pos > start_pos)
1906 gtk_text_forward_delete (text, end_pos - start_pos);
1910 gtk_text_key_press (GtkWidget *widget,
1914 GtkEditable *editable;
1919 g_return_val_if_fail (widget != NULL, FALSE);
1920 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
1921 g_return_val_if_fail (event != NULL, FALSE);
1925 text = GTK_TEXT (widget);
1926 editable = GTK_EDITABLE (widget);
1928 key = event->keyval;
1931 if ((GTK_EDITABLE(text)->editable == FALSE))
1933 switch (event->keyval)
1936 if (event->state & GDK_CONTROL_MASK)
1937 scroll_int (text, -text->vadj->value);
1940 if (event->state & GDK_CONTROL_MASK)
1941 scroll_int (text, +text->vadj->upper);
1943 case GDK_Page_Up: scroll_int (text, -text->vadj->page_increment); break;
1944 case GDK_Page_Down: scroll_int (text, +text->vadj->page_increment); break;
1945 case GDK_Up: scroll_int (text, -KEY_SCROLL_PIXELS); break;
1946 case GDK_Down: scroll_int (text, +KEY_SCROLL_PIXELS); break;
1948 if (event->state & GDK_CONTROL_MASK)
1949 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
1958 gint extend_selection;
1960 guint initial_pos = editable->current_pos;
1962 text->point = find_mark (text, text->cursor_mark.index);
1964 extend_selection = event->state & GDK_SHIFT_MASK;
1965 extend_start = FALSE;
1967 if (extend_selection)
1969 editable->has_selection = TRUE;
1971 if (editable->selection_start_pos == editable->selection_end_pos)
1973 editable->selection_start_pos = text->point.index;
1974 editable->selection_end_pos = text->point.index;
1977 extend_start = (text->point.index == editable->selection_start_pos);
1980 switch (event->keyval)
1983 if (event->state & GDK_CONTROL_MASK)
1984 move_cursor_buffer_ver (text, -1);
1986 gtk_text_move_beginning_of_line (text);
1989 if (event->state & GDK_CONTROL_MASK)
1990 move_cursor_buffer_ver (text, +1);
1992 gtk_text_move_end_of_line (text);
1994 case GDK_Page_Up: move_cursor_page_ver (text, -1); break;
1995 case GDK_Page_Down: move_cursor_page_ver (text, +1); break;
1996 /* CUA has Ctrl-Up/Ctrl-Down as paragraph up down */
1997 case GDK_Up: move_cursor_ver (text, -1); break;
1998 case GDK_Down: move_cursor_ver (text, +1); break;
2000 if (event->state & GDK_CONTROL_MASK)
2001 gtk_text_move_backward_word (text);
2003 move_cursor_hor (text, -1);
2006 if (event->state & GDK_CONTROL_MASK)
2007 gtk_text_move_forward_word (text);
2009 move_cursor_hor (text, +1);
2013 if (event->state & GDK_CONTROL_MASK)
2014 gtk_text_delete_backward_word (text);
2016 gtk_text_delete_backward_character (text);
2019 gtk_text_delete_line (text);
2022 if (event->state & GDK_SHIFT_MASK)
2024 extend_selection = FALSE;
2025 gtk_editable_paste_clipboard (editable);
2027 else if (event->state & GDK_CONTROL_MASK)
2029 gtk_editable_copy_clipboard (editable);
2033 /* gtk_toggle_insert(text) -- IMPLEMENT */
2037 if (event->state & GDK_CONTROL_MASK)
2038 gtk_text_delete_forward_word (text);
2039 else if (event->state & GDK_SHIFT_MASK)
2041 extend_selection = FALSE;
2042 gtk_editable_cut_clipboard (editable);
2045 gtk_text_delete_forward_character (text);
2048 position = text->point.index;
2049 gtk_editable_insert_text (editable, "\t", 1, &position);
2052 if (event->state & GDK_CONTROL_MASK)
2053 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
2056 position = text->point.index;
2057 gtk_editable_insert_text (editable, "\n", 1, &position);
2061 /* Don't insert literally */
2068 if (event->state & GDK_CONTROL_MASK)
2070 if ((key >= 'A') && (key <= 'Z'))
2073 if ((key >= 'a') && (key <= 'z') && control_keys[(int) (key - 'a')])
2075 (* control_keys[(int) (key - 'a')]) (editable, event->time);
2081 else if (event->state & GDK_MOD1_MASK)
2083 if ((key >= 'A') && (key <= 'Z'))
2086 if ((key >= 'a') && (key <= 'z') && alt_keys[(int) (key - 'a')])
2088 (* alt_keys[(int) (key - 'a')]) (editable, event->time);
2094 else if (event->length > 0)
2096 extend_selection = FALSE;
2098 if (event->length == 1)
2100 gtk_editable_delete_selection (editable);
2101 position = text->point.index;
2102 gtk_editable_insert_text (editable, &(event->string[0]), 1, &position);
2111 if (return_val && (editable->current_pos != initial_pos))
2113 if (extend_selection)
2115 if (editable->current_pos < editable->selection_start_pos)
2116 gtk_text_set_selection (editable, editable->current_pos,
2117 editable->selection_end_pos);
2118 else if (editable->current_pos > editable->selection_end_pos)
2119 gtk_text_set_selection (editable, editable->selection_start_pos,
2120 editable->current_pos);
2124 gtk_text_set_selection (editable, editable->current_pos,
2125 editable->selection_end_pos);
2127 gtk_text_set_selection (editable, editable->selection_start_pos,
2128 editable->current_pos);
2132 gtk_text_set_selection (editable, 0, 0);
2134 gtk_editable_claim_selection (editable,
2135 editable->selection_start_pos != editable->selection_end_pos,
2144 gtk_text_focus_in (GtkWidget *widget,
2145 GdkEventFocus *event)
2147 g_return_val_if_fail (widget != NULL, FALSE);
2148 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
2149 g_return_val_if_fail (event != NULL, FALSE);
2151 TDEBUG (("in gtk_text_focus_in\n"));
2153 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
2154 gtk_widget_draw_focus (widget);
2157 if (GTK_EDITABLE(widget)->ic)
2158 gdk_im_begin (GTK_EDITABLE(widget)->ic, GTK_TEXT(widget)->text_area);
2161 draw_cursor (GTK_TEXT(widget), TRUE);
2167 gtk_text_focus_out (GtkWidget *widget,
2168 GdkEventFocus *event)
2170 g_return_val_if_fail (widget != NULL, FALSE);
2171 g_return_val_if_fail (GTK_IS_TEXT (widget), FALSE);
2172 g_return_val_if_fail (event != NULL, FALSE);
2174 TDEBUG (("in gtk_text_focus_out\n"));
2176 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
2177 gtk_widget_draw_focus (widget);
2179 undraw_cursor (GTK_TEXT(widget), TRUE);
2189 gtk_text_adjustment (GtkAdjustment *adjustment,
2192 g_return_if_fail (adjustment != NULL);
2193 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2194 g_return_if_fail (text != NULL);
2195 g_return_if_fail (GTK_IS_TEXT (text));
2197 /* Just ignore it if we haven't been size-allocated and realized yet */
2198 if (text->line_start_cache == NULL)
2201 if (adjustment == text->hadj)
2203 g_warning ("horizontal scrolling not implemented");
2207 gint diff = ((gint)adjustment->value) - text->last_ver_value;
2211 undraw_cursor (text, FALSE);
2214 scroll_down (text, diff);
2215 else /* if (diff < 0) */
2216 scroll_up (text, diff);
2218 draw_cursor (text, FALSE);
2220 text->last_ver_value = adjustment->value;
2226 gtk_text_disconnect (GtkAdjustment *adjustment,
2229 g_return_if_fail (adjustment != NULL);
2230 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2231 g_return_if_fail (text != NULL);
2232 g_return_if_fail (GTK_IS_TEXT (text));
2234 if (adjustment == text->hadj)
2235 gtk_text_set_adjustments (text, NULL, text->vadj);
2236 if (adjustment == text->vadj)
2237 gtk_text_set_adjustments (text, text->hadj, NULL);
2241 static GtkPropertyMark
2242 find_this_line_start_mark (GtkText* text, guint point_position, const GtkPropertyMark* near)
2244 GtkPropertyMark mark;
2246 mark = find_mark_near (text, point_position, near);
2248 while (mark.index > 0 &&
2249 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
2250 decrement_mark (&mark);
2256 init_tab_cont (GtkText* text, PrevTabCont* tab_cont)
2258 tab_cont->pixel_offset = 0;
2259 tab_cont->tab_start.tab_stops = text->tab_stops;
2260 tab_cont->tab_start.to_next_tab = (gulong) text->tab_stops->data;
2262 if (!tab_cont->tab_start.to_next_tab)
2263 tab_cont->tab_start.to_next_tab = text->default_tab_width;
2267 line_params_iterate (GtkText* text,
2268 const GtkPropertyMark* mark0,
2269 const PrevTabCont* tab_mark0,
2272 LineIteratorFunction iter)
2273 /* mark0 MUST be a real line start. if ALLOC, allocate line params
2274 * from a mem chunk. DATA is passed to ITER_CALL, which is called
2275 * for each line following MARK, iteration continues unless ITER_CALL
2278 GtkPropertyMark mark = *mark0;
2279 PrevTabCont tab_conts[2];
2280 LineParams *lp, lpbuf;
2281 gint tab_cont_index = 0;
2284 tab_conts[0] = *tab_mark0;
2286 init_tab_cont (text, tab_conts);
2291 lp = g_chunk_new (LineParams, params_mem_chunk);
2295 *lp = find_line_params (text, &mark, tab_conts + tab_cont_index,
2296 tab_conts + (tab_cont_index + 1) % 2);
2298 if ((*iter) (text, lp, data))
2301 if (LAST_INDEX (text, lp->end))
2305 advance_mark (&mark);
2306 tab_cont_index = (tab_cont_index + 1) % 2;
2311 fetch_lines_iterator (GtkText* text, LineParams* lp, void* data)
2313 FetchLinesData *fldata = (FetchLinesData*) data;
2315 fldata->new_lines = g_list_prepend (fldata->new_lines, lp);
2317 switch (fldata->fl_type)
2319 case FetchLinesCount:
2320 if (!text->line_wrap || !lp->wraps)
2323 if (fldata->data >= fldata->data_max)
2327 case FetchLinesPixels:
2329 fldata->data += LINE_HEIGHT(*lp);
2331 if (fldata->data >= fldata->data_max)
2341 fetch_lines (GtkText* text,
2342 const GtkPropertyMark* mark0,
2343 const PrevTabCont* tab_cont0,
2347 FetchLinesData fl_data;
2349 fl_data.new_lines = NULL;
2351 fl_data.data_max = data;
2352 fl_data.fl_type = fl_type;
2354 line_params_iterate (text, mark0, tab_cont0, TRUE, &fl_data, fetch_lines_iterator);
2356 return g_list_reverse (fl_data.new_lines);
2360 fetch_lines_backward (GtkText* text)
2362 GList* new_lines = NULL, *new_line_start;
2363 GtkPropertyMark mark;
2365 if (CACHE_DATA(text->line_start_cache).start.index == 0)
2368 mark = find_this_line_start_mark (text,
2369 CACHE_DATA(text->line_start_cache).start.index - 1,
2370 &CACHE_DATA(text->line_start_cache).start);
2372 new_line_start = new_lines = fetch_lines (text, &mark, NULL, FetchLinesCount, 1);
2374 while (new_line_start->next)
2375 new_line_start = new_line_start->next;
2377 new_line_start->next = text->line_start_cache;
2378 text->line_start_cache->prev = new_line_start;
2382 fetch_lines_forward (GtkText* text, gint line_count)
2384 GtkPropertyMark mark;
2385 GList* line = text->line_start_cache;
2390 mark = CACHE_DATA(line).end;
2392 if (LAST_INDEX (text, mark))
2395 advance_mark(&mark);
2397 line->next = fetch_lines (text, &mark, &CACHE_DATA(line).tab_cont_next, FetchLinesCount, line_count);
2400 line->next->prev = line;
2403 /* Compute the number of lines, and vertical pixels for n characters
2404 * starting from the point
2407 compute_lines_pixels (GtkText* text, guint char_count,
2408 guint *lines, guint *pixels)
2410 GList *line = text->current_line;
2411 gint chars_left = char_count;
2416 /* If chars_left == 0, that means we're joining two lines in a
2417 * deletion, so add in the values for the next line as well
2419 for (; line && chars_left >= 0; line = line->next)
2421 *pixels += LINE_HEIGHT(CACHE_DATA(line));
2423 if (line == text->current_line)
2424 chars_left -= CACHE_DATA(line).end.index - text->point.index + 1;
2426 chars_left -= CACHE_DATA(line).end.index - CACHE_DATA(line).start.index + 1;
2428 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2432 chars_left = 0; /* force another loop */
2435 fetch_lines_forward (text, 1);
2440 total_line_height (GtkText* text, GList* line, gint line_count)
2444 for (; line && line_count > 0; line = line->next)
2446 height += LINE_HEIGHT(CACHE_DATA(line));
2448 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2452 fetch_lines_forward (text, line_count);
2459 swap_lines (GtkText* text, GList* old, GList* new, guint old_line_count)
2461 if (old == text->line_start_cache)
2465 for (; old_line_count > 0; old_line_count -= 1)
2467 while (text->line_start_cache &&
2469 CACHE_DATA(text->line_start_cache).wraps)
2470 remove_cache_line(text, text->line_start_cache);
2472 remove_cache_line(text, text->line_start_cache);
2475 last = g_list_last (new);
2477 last->next = text->line_start_cache;
2479 if (text->line_start_cache)
2480 text->line_start_cache->prev = last;
2482 text->line_start_cache = new;
2488 g_assert (old->prev);
2492 for (; old_line_count > 0; old_line_count -= 1)
2494 while (old && text->line_wrap && CACHE_DATA(old).wraps)
2495 old = remove_cache_line (text, old);
2497 old = remove_cache_line (text, old);
2503 last = g_list_last (new);
2513 correct_cache_delete (GtkText* text, gint nchars, gint lines)
2515 GList* cache = text->current_line;
2518 for (i = 0; cache && i < lines; i += 1, cache = cache->next)
2521 for (; cache; cache = cache->next)
2523 GtkPropertyMark *start = &CACHE_DATA(cache).start;
2524 GtkPropertyMark *end = &CACHE_DATA(cache).end;
2526 start->index -= nchars;
2527 end->index -= nchars;
2529 if (LAST_INDEX (text, text->point) &&
2530 start->index == text->point.index)
2531 *start = text->point;
2532 else if (start->property == text->point.property)
2533 start->offset = start->index - (text->point.index - text->point.offset);
2535 if (LAST_INDEX (text, text->point) &&
2536 end->index == text->point.index)
2538 if (end->property == text->point.property)
2539 end->offset = end->index - (text->point.index - text->point.offset);
2541 /*TEXT_ASSERT_MARK(text, start, "start");*/
2542 /*TEXT_ASSERT_MARK(text, end, "end");*/
2547 delete_expose (GtkText* text, guint nchars, guint old_lines, guint old_pixels)
2549 GtkWidget *widget = GTK_WIDGET (text);
2552 guint new_pixels = 0;
2554 GList* new_line = NULL;
2557 text->cursor_virtual_x = 0;
2559 correct_cache_delete (text, nchars, old_lines);
2561 pixel_height = pixel_height_of(text, text->current_line) -
2562 LINE_HEIGHT(CACHE_DATA(text->current_line));
2564 if (CACHE_DATA(text->current_line).start.index == text->point.index)
2565 CACHE_DATA(text->current_line).start = text->point;
2567 new_line = fetch_lines (text,
2568 &CACHE_DATA(text->current_line).start,
2569 &CACHE_DATA(text->current_line).tab_cont,
2573 swap_lines (text, text->current_line, new_line, old_lines);
2575 text->current_line = new_line;
2577 new_pixels = total_line_height (text, new_line, 1);
2579 gdk_window_get_size (text->text_area, &width, &height);
2581 if (old_pixels != new_pixels)
2583 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2585 gdk_draw_pixmap (text->text_area,
2589 pixel_height + old_pixels,
2591 pixel_height + new_pixels,
2595 text->vadj->upper += new_pixels;
2596 text->vadj->upper -= old_pixels;
2597 adjust_adj (text, text->vadj);
2601 rect.y = pixel_height;
2603 rect.height = new_pixels;
2605 expose_text (text, &rect, FALSE);
2606 gtk_text_draw_focus ( (GtkWidget *) text);
2608 text->cursor_mark = text->point;
2610 find_cursor (text, TRUE);
2612 if (old_pixels != new_pixels)
2614 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2617 rect.y = pixel_height + new_pixels;
2619 rect.height = height - rect.y;
2621 expose_text (text, &rect, FALSE);
2624 process_exposes (text);
2631 /* note, the point has already been moved forward */
2633 correct_cache_insert (GtkText* text, gint nchars)
2636 GtkPropertyMark *start;
2637 GtkPropertyMark *end;
2638 gboolean was_split = FALSE;
2640 /* We need to distinguish whether the property was split in the
2641 * insert or not, so we check if the point (which points after
2642 * the insertion here), points to the same character as the
2643 * point before. Ugh.
2647 GtkPropertyMark tmp_mark = text->point;
2648 move_mark_n (&tmp_mark, -1);
2650 if (tmp_mark.property != text->point.property)
2654 /* If we inserted a property exactly at the beginning of the
2655 * line, we have to correct here, or fetch_lines will
2658 start = &CACHE_DATA(text->current_line).start;
2660 /* Check if if we split exactly at the beginning of the line:
2661 * (was_split won't be set if we are inserting at the end of the text,
2662 * so we don't check)
2664 if (start->offset == MARK_CURRENT_PROPERTY (start)->length)
2665 SET_PROPERTY_MARK (start, start->property->next, 0);
2666 /* Check if we inserted a property at the beginning of the text: */
2667 else if (was_split &&
2668 (start->property == text->point.property) &&
2669 (start->index == text->point.index - nchars))
2670 SET_PROPERTY_MARK (start, start->property->prev, 0);
2672 /* Now correct the offsets, and check for start or end marks that
2673 * are after the point, yet point to a property before the point's
2674 * property. This indicates that they are meant to point to the
2675 * second half of a property we split in insert_text_property(), so
2676 * we fix them up that way.
2678 cache = text->current_line->next;
2680 for (; cache; cache = cache->next)
2682 start = &CACHE_DATA(cache).start;
2683 end = &CACHE_DATA(cache).end;
2685 if (LAST_INDEX (text, text->point) &&
2686 start->index == text->point.index)
2687 *start = text->point;
2688 else if (start->index >= text->point.index - nchars)
2690 if (!was_split && start->property == text->point.property)
2691 move_mark_n(start, nchars);
2694 if (start->property->next &&
2695 (start->property->next->next == text->point.property))
2697 g_assert (start->offset >= MARK_CURRENT_PROPERTY (start)->length);
2698 start->offset -= MARK_CURRENT_PROPERTY (start)->length;
2699 start->property = text->point.property;
2701 start->index += nchars;
2705 if (LAST_INDEX (text, text->point) &&
2706 end->index == text->point.index)
2708 if (end->index >= text->point.index - nchars)
2710 if (!was_split && end->property == text->point.property)
2711 move_mark_n(end, nchars);
2714 if (end->property->next &&
2715 (end->property->next->next == text->point.property))
2717 g_assert (end->offset >= MARK_CURRENT_PROPERTY (end)->length);
2718 end->offset -= MARK_CURRENT_PROPERTY (end)->length;
2719 end->property = text->point.property;
2721 end->index += nchars;
2725 /*TEXT_ASSERT_MARK(text, start, "start");*/
2726 /*TEXT_ASSERT_MARK(text, end, "end");*/
2732 insert_expose (GtkText* text, guint old_pixels, gint nchars,
2733 guint new_line_count)
2735 GtkWidget *widget = GTK_WIDGET (text);
2738 guint new_pixels = 0;
2740 GList* new_lines = NULL;
2743 text->cursor_virtual_x = 0;
2745 undraw_cursor (text, FALSE);
2747 correct_cache_insert (text, nchars);
2749 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2751 pixel_height = pixel_height_of(text, text->current_line) -
2752 LINE_HEIGHT(CACHE_DATA(text->current_line));
2754 new_lines = fetch_lines (text,
2755 &CACHE_DATA(text->current_line).start,
2756 &CACHE_DATA(text->current_line).tab_cont,
2760 swap_lines (text, text->current_line, new_lines, 1);
2762 text->current_line = new_lines;
2764 new_pixels = total_line_height (text, new_lines, new_line_count);
2766 gdk_window_get_size (text->text_area, &width, &height);
2768 if (old_pixels != new_pixels)
2770 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2772 gdk_draw_pixmap (text->text_area,
2776 pixel_height + old_pixels,
2778 pixel_height + new_pixels,
2780 height + (old_pixels - new_pixels) - pixel_height);
2783 text->vadj->upper += new_pixels;
2784 text->vadj->upper -= old_pixels;
2785 adjust_adj (text, text->vadj);
2789 rect.y = pixel_height;
2791 rect.height = new_pixels;
2793 expose_text (text, &rect, FALSE);
2794 gtk_text_draw_focus ( (GtkWidget *) text);
2796 text->cursor_mark = text->point;
2798 find_cursor (text, TRUE);
2800 draw_cursor (text, FALSE);
2802 if (old_pixels != new_pixels)
2804 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2807 rect.y = pixel_height + new_pixels;
2809 rect.height = height - rect.y;
2811 expose_text (text, &rect, FALSE);
2814 process_exposes (text);
2817 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
2822 /* Text property functions */
2825 font_hash (gconstpointer font)
2827 return gdk_font_id ((const GdkFont*) font);
2830 static GHashTable *font_cache_table = NULL;
2833 get_text_font (GdkFont* gfont)
2838 if (!font_cache_table)
2839 font_cache_table = g_hash_table_new (font_hash, (GCompareFunc) gdk_font_equal);
2841 tf = g_hash_table_lookup (font_cache_table, gfont);
2849 tf = g_new (GtkTextFont, 1);
2852 tf->gdk_font = gfont;
2853 gdk_font_ref (gfont);
2855 for(i = 0; i < 256; i += 1)
2856 tf->char_widths[i] = gdk_char_width (gfont, (char)i);
2858 g_hash_table_insert (font_cache_table, gfont, tf);
2864 text_font_unref (GtkTextFont *text_font)
2866 text_font->ref_count--;
2867 if (text_font->ref_count == 0)
2869 g_hash_table_remove (font_cache_table, text_font->gdk_font);
2870 gdk_font_unref (text_font->gdk_font);
2876 text_properties_equal (TextProperty* prop, GdkFont* font, GdkColor *fore, GdkColor *back)
2878 if (prop->flags & PROPERTY_FONT)
2881 GtkTextFont *text_font;
2886 text_font = get_text_font (font);
2888 retval = (prop->font == text_font);
2889 text_font_unref (text_font);
2898 if (prop->flags & PROPERTY_FOREGROUND)
2900 if (!fore || !gdk_color_equal (&prop->fore_color, fore))
2907 if (prop->flags & PROPERTY_BACKGROUND)
2909 if (!back || !gdk_color_equal (&prop->fore_color, fore))
2920 realize_property (GtkText *text, TextProperty *prop)
2922 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2924 if (prop->flags & PROPERTY_FOREGROUND)
2925 gdk_colormap_alloc_color (colormap, &prop->fore_color, FALSE, FALSE);
2927 if (prop->flags & PROPERTY_BACKGROUND)
2928 gdk_colormap_alloc_color (colormap, &prop->back_color, FALSE, FALSE);
2932 realize_properties (GtkText *text)
2934 GList *tmp_list = text->text_properties;
2938 realize_property (text, tmp_list->data);
2940 tmp_list = tmp_list->next;
2945 unrealize_property (GtkText *text, TextProperty *prop)
2947 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
2949 if (prop->flags & PROPERTY_FOREGROUND)
2950 gdk_colormap_free_colors (colormap, &prop->fore_color, 1);
2952 if (prop->flags & PROPERTY_BACKGROUND)
2953 gdk_colormap_free_colors (colormap, &prop->back_color, 1);
2957 unrealize_properties (GtkText *text)
2959 GList *tmp_list = text->text_properties;
2963 unrealize_property (text, tmp_list->data);
2965 tmp_list = tmp_list->next;
2969 static TextProperty*
2970 new_text_property (GtkText *text, GdkFont *font, GdkColor* fore,
2971 GdkColor* back, guint length)
2975 if (text_property_chunk == NULL)
2977 text_property_chunk = g_mem_chunk_new ("text property mem chunk",
2978 sizeof(TextProperty),
2979 1024*sizeof(TextProperty),
2983 prop = g_chunk_new(TextProperty, text_property_chunk);
2988 prop->flags |= PROPERTY_FONT;
2989 prop->font = get_text_font (font);
2996 prop->flags |= PROPERTY_FOREGROUND;
2997 prop->fore_color = *fore;
3002 prop->flags |= PROPERTY_BACKGROUND;
3003 prop->back_color = *back;
3006 prop->length = length;
3008 if (GTK_WIDGET_REALIZED (text))
3009 realize_property (text, prop);
3015 destroy_text_property (TextProperty *prop)
3018 text_font_unref (prop->font);
3020 g_mem_chunk_free (text_property_chunk, prop);
3023 /* Flop the memory between the point and the gap around like a
3026 move_gap_to_point (GtkText* text)
3028 if (text->gap_position < text->point.index)
3030 gint diff = text->point.index - text->gap_position;
3032 g_memmove (text->text + text->gap_position,
3033 text->text + text->gap_position + text->gap_size,
3036 text->gap_position = text->point.index;
3038 else if (text->gap_position > text->point.index)
3040 gint diff = text->gap_position - text->point.index;
3042 g_memmove (text->text + text->point.index + text->gap_size,
3043 text->text + text->point.index,
3046 text->gap_position = text->point.index;
3050 /* Increase the gap size. */
3052 make_forward_space (GtkText* text, guint len)
3054 if (text->gap_size < len)
3056 guint sum = MAX(2*len, MIN_GAP_SIZE) + text->text_end;
3058 if (sum >= text->text_len)
3062 while (i <= sum) i <<= 1;
3064 text->text = (guchar*)g_realloc(text->text, i);
3067 g_memmove (text->text + text->gap_position + text->gap_size + 2*len,
3068 text->text + text->gap_position + text->gap_size,
3069 text->text_end - (text->gap_position + text->gap_size));
3071 text->text_end += len*2;
3072 text->gap_size += len*2;
3076 /* Inserts into the text property list a list element that guarantees
3077 * that for len characters following the point, text has the correct
3078 * property. does not move point. adjusts text_properties_point and
3079 * text_properties_point_offset relative to the current value of
3082 insert_text_property (GtkText* text, GdkFont* font,
3083 GdkColor *fore, GdkColor* back, guint len)
3085 GtkPropertyMark *mark = &text->point;
3086 TextProperty* forward_prop = MARK_CURRENT_PROPERTY(mark);
3087 TextProperty* backward_prop = MARK_PREV_PROPERTY(mark);
3089 if (MARK_OFFSET(mark) == 0)
3091 /* Point is on the boundary of two properties.
3092 * If it is the same as either, grow, else insert
3095 if (text_properties_equal(forward_prop, font, fore, back))
3097 /* Grow the property in front of us. */
3099 MARK_PROPERTY_LENGTH(mark) += len;
3101 else if (backward_prop &&
3102 text_properties_equal(backward_prop, font, fore, back))
3104 /* Grow property behind us, point property and offset
3107 SET_PROPERTY_MARK (&text->point,
3108 MARK_PREV_LIST_PTR (mark),
3109 backward_prop->length);
3111 backward_prop->length += len;
3113 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3114 (forward_prop->length == 1))
3116 /* Next property just has last position, take it over */
3118 if (GTK_WIDGET_REALIZED (text))
3119 unrealize_property (text, forward_prop);
3121 forward_prop->flags = 0;
3124 forward_prop->flags |= PROPERTY_FONT;
3125 forward_prop->font = get_text_font (font);
3128 forward_prop->font = NULL;
3132 forward_prop->flags |= PROPERTY_FOREGROUND;
3133 forward_prop->fore_color = *fore;
3137 forward_prop->flags |= PROPERTY_BACKGROUND;
3138 forward_prop->back_color = *back;
3140 forward_prop->length += len;
3142 if (GTK_WIDGET_REALIZED (text))
3143 realize_property (text, forward_prop);
3147 /* Splice a new property into the list. */
3149 GList* new_prop = g_list_alloc();
3151 new_prop->next = MARK_LIST_PTR(mark);
3152 new_prop->prev = MARK_PREV_LIST_PTR(mark);
3153 new_prop->next->prev = new_prop;
3156 new_prop->prev->next = new_prop;
3158 new_prop->data = new_text_property (text, font, fore, back, len);
3160 SET_PROPERTY_MARK (mark, new_prop, 0);
3165 /* The following will screw up the line_start cache,
3166 * we'll fix it up in correct_cache_insert
3169 /* In the middle of forward_prop, if properties are equal,
3170 * just add to its length, else split it into two and splice
3172 if (text_properties_equal (forward_prop, font, fore, back))
3174 forward_prop->length += len;
3176 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3177 (MARK_OFFSET(mark) + 1 == forward_prop->length))
3179 /* Inserting before only the last position in the text */
3182 forward_prop->length -= 1;
3184 new_prop = g_list_alloc();
3185 new_prop->data = new_text_property (text, font, fore, back, len+1);
3186 new_prop->prev = MARK_LIST_PTR(mark);
3187 new_prop->next = NULL;
3188 MARK_NEXT_LIST_PTR(mark) = new_prop;
3190 SET_PROPERTY_MARK (mark, new_prop, 0);
3194 GList* new_prop = g_list_alloc();
3195 GList* new_prop_forward = g_list_alloc();
3196 gint old_length = forward_prop->length;
3197 GList* next = MARK_NEXT_LIST_PTR(mark);
3199 /* Set the new lengths according to where they are split. Construct
3200 * two new properties. */
3201 forward_prop->length = MARK_OFFSET(mark);
3203 new_prop_forward->data =
3204 new_text_property(text,
3205 forward_prop->flags & PROPERTY_FONT ?
3206 forward_prop->font->gdk_font : NULL,
3207 forward_prop->flags & PROPERTY_FOREGROUND ?
3208 &forward_prop->fore_color : NULL,
3209 forward_prop->flags & PROPERTY_BACKGROUND ?
3210 &forward_prop->back_color : NULL,
3211 old_length - forward_prop->length);
3213 new_prop->data = new_text_property(text, font, fore, back, len);
3215 /* Now splice things in. */
3216 MARK_NEXT_LIST_PTR(mark) = new_prop;
3217 new_prop->prev = MARK_LIST_PTR(mark);
3219 new_prop->next = new_prop_forward;
3220 new_prop_forward->prev = new_prop;
3222 new_prop_forward->next = next;
3225 next->prev = new_prop_forward;
3227 SET_PROPERTY_MARK (mark, new_prop, 0);
3231 while (text->text_properties_end->next)
3232 text->text_properties_end = text->text_properties_end->next;
3234 while (text->text_properties->prev)
3235 text->text_properties = text->text_properties->prev;
3239 delete_text_property (GtkText* text, guint nchars)
3241 /* Delete nchars forward from point. */
3243 /* Deleting text properties is problematical, because we
3244 * might be storing around marks pointing to a property.
3246 * The marks in question and how we handle them are:
3248 * point: We know the new value, since it will be at the
3249 * end of the deleted text, and we move it there
3251 * cursor: We just remove the mark and set it equal to the
3252 * point after the operation.
3253 * line-start cache: We replace most affected lines.
3254 * The current line gets used to fetch the new
3255 * lines so, if necessary, (delete at the beginning
3256 * of a line) we fix it up by setting it equal to the
3264 for(; nchars; nchars -= 1)
3266 prop = MARK_CURRENT_PROPERTY(&text->point);
3270 if (prop->length == 0)
3272 tmp = MARK_LIST_PTR (&text->point);
3274 is_first = tmp == text->text_properties;
3276 MARK_LIST_PTR (&text->point) = g_list_remove_link (tmp, tmp);
3277 text->point.offset = 0;
3279 if (GTK_WIDGET_REALIZED (text))
3280 unrealize_property (text, prop);
3282 destroy_text_property (prop);
3283 g_list_free_1 (tmp);
3285 prop = MARK_CURRENT_PROPERTY (&text->point);
3288 text->text_properties = MARK_LIST_PTR (&text->point);
3290 g_assert (prop->length != 0);
3292 else if (prop->length == text->point.offset)
3294 MARK_LIST_PTR (&text->point) = MARK_NEXT_LIST_PTR (&text->point);
3295 text->point.offset = 0;
3299 /* Check to see if we have just the single final position remaining
3300 * along in a property; if so, combine it with the previous property
3302 if (LAST_INDEX (text, text->point) &&
3303 (MARK_OFFSET (&text->point) == 0) &&
3304 (MARK_PREV_LIST_PTR(&text->point) != NULL))
3306 tmp = MARK_LIST_PTR (&text->point);
3307 prop = MARK_CURRENT_PROPERTY(&text->point);
3309 MARK_LIST_PTR (&text->point) = MARK_PREV_LIST_PTR (&text->point);
3310 MARK_CURRENT_PROPERTY(&text->point)->length += 1;
3311 MARK_NEXT_LIST_PTR(&text->point) = NULL;
3313 text->point.offset = MARK_CURRENT_PROPERTY(&text->point)->length - 1;
3315 if (GTK_WIDGET_REALIZED (text))
3316 unrealize_property (text, prop);
3318 destroy_text_property (prop);
3319 g_list_free_1 (tmp);
3324 init_properties (GtkText *text)
3326 if (!text->text_properties)
3328 text->text_properties = g_list_alloc();
3329 text->text_properties->next = NULL;
3330 text->text_properties->prev = NULL;
3331 text->text_properties->data = new_text_property (text, NULL, NULL, NULL, 1);
3332 text->text_properties_end = text->text_properties;
3334 SET_PROPERTY_MARK (&text->point, text->text_properties, 0);
3336 text->point.index = 0;
3341 /**********************************************************************/
3342 /* Property Movement */
3343 /**********************************************************************/
3346 move_mark_n (GtkPropertyMark* mark, gint n)
3349 advance_mark_n(mark, n);
3351 decrement_mark_n(mark, -n);
3355 advance_mark (GtkPropertyMark* mark)
3357 TextProperty* prop = MARK_CURRENT_PROPERTY (mark);
3361 if (prop->length > mark->offset + 1)
3365 mark->property = MARK_NEXT_LIST_PTR (mark);
3371 advance_mark_n (GtkPropertyMark* mark, gint n)
3378 i = 0; /* otherwise it migth not be init. */
3379 prop = MARK_CURRENT_PROPERTY(mark);
3381 if ((prop->length - mark->offset - 1) < n) { /* if we need to change prop. */
3382 /* to make it easier */
3383 n += (mark->offset);
3384 mark->index -= mark->offset;
3386 /* first we take seven-mile-leaps to get to the right text
3388 while ((n-i) > prop->length - 1) {
3390 mark->index += prop->length;
3391 mark->property = MARK_NEXT_LIST_PTR (mark);
3392 prop = MARK_CURRENT_PROPERTY (mark);
3396 /* and then the rest */
3397 mark->index += n - i;
3398 mark->offset += n - i;
3402 decrement_mark (GtkPropertyMark* mark)
3406 if (mark->offset > 0)
3410 mark->property = MARK_PREV_LIST_PTR (mark);
3411 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3416 decrement_mark_n (GtkPropertyMark* mark, gint n)
3420 while (mark->offset < n) {
3421 /* jump to end of prev */
3422 n -= mark->offset + 1;
3423 mark->index -= mark->offset + 1;
3424 mark->property = MARK_PREV_LIST_PTR (mark);
3425 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3433 static GtkPropertyMark
3434 find_mark (GtkText* text, guint mark_position)
3436 return find_mark_near (text, mark_position, &text->point);
3440 * You can also start from the end, what a drag.
3442 static GtkPropertyMark
3443 find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near)
3448 GtkPropertyMark mark;
3451 diffa = mark_position + 1;
3453 diffa = mark_position - near->index;
3455 diffb = mark_position;
3467 mark.property = text->text_properties;
3471 move_mark_n (&mark, mark_position - mark.index);
3476 /* This routine must be called with scroll == FALSE, only when
3477 * point is at least partially on screen
3481 find_line_containing_point (GtkText* text, guint point,
3487 text->current_line = NULL;
3489 if (!text->line_start_cache->next)
3491 /* @@@ Its visible, right? */
3492 text->current_line = text->line_start_cache;
3496 while ( ( scroll && (text->first_cut_pixels != 0) &&
3497 (CACHE_DATA(text->line_start_cache->next).start.index > point) ) ||
3498 ( (text->first_cut_pixels == 0) &&
3499 (CACHE_DATA(text->line_start_cache).start.index > point) ) )
3501 scroll_int (text, - SCROLL_PIXELS);
3502 g_assert (text->line_start_cache->next);
3506 gdk_window_get_size (text->text_area, NULL, &height);
3508 for (cache = text->line_start_cache; cache; cache = cache->next)
3512 if (CACHE_DATA(cache).end.index >= point ||
3513 LAST_INDEX(text, CACHE_DATA(cache).end))
3515 text->current_line = cache; /* LOOK HERE, this proc has an
3516 * important side effect. */
3520 TEXT_SHOW_LINE (text, cache, "cache");
3522 if (cache->next == NULL)
3523 fetch_lines_forward (text, 1);
3527 lph = pixel_height_of (text, cache->next);
3529 /* Scroll the bottom of the line is on screen, or until
3530 * the line is the first onscreen line.
3532 while (cache->next != text->line_start_cache && lph > height)
3534 TEXT_SHOW_LINE (text, cache, "cache");
3535 TEXT_SHOW_LINE (text, cache->next, "cache->next");
3536 scroll_int (text, LINE_HEIGHT(CACHE_DATA(cache->next)));
3537 lph = pixel_height_of (text, cache->next);
3542 g_assert_not_reached (); /* Must set text->current_line here */
3546 pixel_height_of (GtkText* text, GList* cache_line)
3548 gint pixels = - text->first_cut_pixels;
3549 GList *cache = text->line_start_cache;
3552 pixels += LINE_HEIGHT (CACHE_DATA(cache));
3554 if (cache->data == cache_line->data)
3557 cache = cache->next;
3563 /**********************************************************************/
3564 /* Search and Placement */
3565 /**********************************************************************/
3568 find_char_width (GtkText* text, const GtkPropertyMark *mark, const TabStopMark *tab_mark)
3571 gint16* char_widths;
3573 if (LAST_INDEX (text, *mark))
3576 ch = GTK_TEXT_INDEX (text, mark->index);
3577 char_widths = MARK_CURRENT_TEXT_FONT (text, mark)->char_widths;
3581 return tab_mark->to_next_tab * char_widths[' '];
3585 return char_widths[ch & 0xff];
3590 advance_tab_mark (GtkText* text, TabStopMark* tab_mark, gchar ch)
3592 if (tab_mark->to_next_tab == 1 || ch == '\t')
3594 if (tab_mark->tab_stops->next)
3596 tab_mark->tab_stops = tab_mark->tab_stops->next;
3597 tab_mark->to_next_tab = (gulong) tab_mark->tab_stops->data;
3601 tab_mark->to_next_tab = text->default_tab_width;
3606 tab_mark->to_next_tab -= 1;
3611 advance_tab_mark_n (GtkText* text, TabStopMark* tab_mark, gint n)
3615 advance_tab_mark (text, tab_mark, 0);
3619 find_cursor_at_line (GtkText* text, const LineParams* start_line, gint pixel_height)
3622 GtkEditable *editable = (GtkEditable *)text;
3624 GtkPropertyMark mark = start_line->start;
3625 TabStopMark tab_mark = start_line->tab_cont.tab_start;
3626 gint pixel_width = LINE_START_PIXEL (*start_line);
3628 while (mark.index < text->cursor_mark.index)
3630 pixel_width += find_char_width (text, &mark, &tab_mark);
3632 advance_tab_mark (text, &tab_mark, GTK_TEXT_INDEX(text, mark.index));
3633 advance_mark (&mark);
3636 text->cursor_pos_x = pixel_width;
3637 text->cursor_pos_y = pixel_height;
3638 text->cursor_char_offset = start_line->font_descent;
3639 text->cursor_mark = mark;
3641 ch = LAST_INDEX (text, mark) ?
3642 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3645 text->cursor_char = ch;
3647 text->cursor_char = 0;
3650 if (gdk_im_ready() && editable->ic &&
3651 gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION)
3655 spot.x = text->cursor_pos_x;
3656 spot.y = text->cursor_pos_y - text->cursor_char_offset;
3657 if (MARK_CURRENT_FONT (text, &mark)->type == GDK_FONT_FONTSET)
3658 gdk_ic_set_attr (editable->ic, "preeditAttributes",
3659 "fontSet", GDK_FONT_XFONT (MARK_CURRENT_FONT (text, &mark)),
3662 gdk_ic_set_attr (editable->ic, "preeditAttributes",
3663 "spotLocation", &spot,
3664 "lineSpace", LINE_HEIGHT (*start_line),
3665 "foreground", MARK_CURRENT_FORE (text, &mark)->pixel,
3666 "background", MARK_CURRENT_BACK (text, &mark)->pixel,
3673 find_cursor (GtkText* text, gboolean scroll)
3675 if (GTK_WIDGET_REALIZED (text))
3677 find_line_containing_point (text, text->cursor_mark.index, scroll);
3679 if (text->current_line)
3680 find_cursor_at_line (text,
3681 &CACHE_DATA(text->current_line),
3682 pixel_height_of(text, text->current_line));
3685 GTK_EDITABLE (text)->current_pos = text->cursor_mark.index;
3689 find_mouse_cursor_at_line (GtkText *text, const LineParams* lp,
3690 guint line_pixel_height,
3693 GtkPropertyMark mark = lp->start;
3694 TabStopMark tab_mark = lp->tab_cont.tab_start;
3696 gint char_width = find_char_width(text, &mark, &tab_mark);
3697 gint pixel_width = LINE_START_PIXEL (*lp) + (char_width+1)/2;
3699 text->cursor_pos_y = line_pixel_height;
3703 gchar ch = LAST_INDEX (text, mark) ?
3704 LINE_DELIM : GTK_TEXT_INDEX (text, mark.index);
3706 if (button_x < pixel_width || mark.index == lp->end.index)
3708 text->cursor_pos_x = pixel_width - (char_width+1)/2;
3709 text->cursor_mark = mark;
3710 text->cursor_char_offset = lp->font_descent;
3713 text->cursor_char = ch;
3715 text->cursor_char = 0;
3720 advance_tab_mark (text, &tab_mark, ch);
3721 advance_mark (&mark);
3723 pixel_width += char_width/2;
3725 char_width = find_char_width (text, &mark, &tab_mark);
3727 pixel_width += (char_width+1)/2;
3732 find_mouse_cursor (GtkText* text, gint x, gint y)
3735 GList* cache = text->line_start_cache;
3739 pixel_height = - text->first_cut_pixels;
3741 for (; cache; cache = cache->next)
3743 pixel_height += LINE_HEIGHT(CACHE_DATA(cache));
3745 if (y < pixel_height || !cache->next)
3747 find_mouse_cursor_at_line (text, &CACHE_DATA(cache), pixel_height, x);
3749 find_cursor (text, FALSE);
3756 /**********************************************************************/
3758 /**********************************************************************/
3761 free_cache (GtkText* text)
3763 GList* cache = text->line_start_cache;
3768 cache = cache->prev;
3770 text->line_start_cache = cache;
3773 for (; cache; cache = cache->next)
3774 g_mem_chunk_free (params_mem_chunk, cache->data);
3776 g_list_free (text->line_start_cache);
3778 text->line_start_cache = NULL;
3782 remove_cache_line (GtkText* text, GList* member)
3789 if (member == text->line_start_cache)
3790 text->line_start_cache = text->line_start_cache->next;
3793 member->prev->next = member->next;
3796 member->next->prev = member->prev;
3798 list = member->next;
3800 g_mem_chunk_free (params_mem_chunk, member->data);
3801 g_list_free_1 (member);
3806 /**********************************************************************/
3808 /**********************************************************************/
3811 move_cursor_buffer_ver (GtkText *text, int dir)
3813 undraw_cursor (text, FALSE);
3817 scroll_int (text, text->vadj->upper);
3818 text->cursor_mark = find_this_line_start_mark (text,
3820 &text->cursor_mark);
3824 scroll_int (text, - text->vadj->value);
3825 text->cursor_mark = find_this_line_start_mark (text,
3827 &text->cursor_mark);
3830 find_cursor (text, TRUE);
3831 draw_cursor (text, FALSE);
3835 move_cursor_page_ver (GtkText *text, int dir)
3837 scroll_int (text, dir * text->vadj->page_increment);
3841 move_cursor_ver (GtkText *text, int count)
3844 GtkPropertyMark mark;
3847 mark = find_this_line_start_mark (text, text->cursor_mark.index, &text->cursor_mark);
3848 offset = text->cursor_mark.index - mark.index;
3850 if (offset > text->cursor_virtual_x)
3851 text->cursor_virtual_x = offset;
3855 if (mark.index == 0)
3858 decrement_mark (&mark);
3859 mark = find_this_line_start_mark (text, mark.index, &mark);
3863 mark = text->cursor_mark;
3865 while (!LAST_INDEX(text, mark) && GTK_TEXT_INDEX(text, mark.index) != LINE_DELIM)
3866 advance_mark (&mark);
3868 if (LAST_INDEX(text, mark))
3871 advance_mark (&mark);
3874 for (i=0; i < text->cursor_virtual_x; i += 1, advance_mark(&mark))
3875 if (LAST_INDEX(text, mark) || GTK_TEXT_INDEX(text, mark.index) == LINE_DELIM)
3878 undraw_cursor (text, FALSE);
3880 text->cursor_mark = mark;
3882 find_cursor (text, TRUE);
3884 draw_cursor (text, FALSE);
3888 move_cursor_hor (GtkText *text, int count)
3890 /* count should be +-1. */
3891 if ( (count > 0 && text->cursor_mark.index + count > TEXT_LENGTH(text)) ||
3892 (count < 0 && text->cursor_mark.index < (- count)) ||
3896 text->cursor_virtual_x = 0;
3898 undraw_cursor (text, FALSE);
3900 move_mark_n (&text->cursor_mark, count);
3902 find_cursor (text, TRUE);
3904 draw_cursor (text, FALSE);
3908 gtk_text_move_cursor (GtkEditable *editable,
3915 move_cursor_hor (GTK_TEXT (editable), 1);
3920 move_cursor_hor (GTK_TEXT (editable), -1);
3926 move_cursor_ver (GTK_TEXT (editable), 1);
3931 move_cursor_ver (GTK_TEXT (editable), -1);
3936 gtk_text_move_forward_character (GtkText *text)
3938 move_cursor_hor (text, 1);
3942 gtk_text_move_backward_character (GtkText *text)
3944 move_cursor_hor (text, -1);
3948 gtk_text_move_next_line (GtkText *text)
3950 move_cursor_ver (text, 1);
3954 gtk_text_move_previous_line (GtkText *text)
3956 move_cursor_ver (text, -1);
3960 gtk_text_move_word (GtkEditable *editable,
3966 gtk_text_move_forward_word (GTK_TEXT (editable));
3971 gtk_text_move_backward_word (GTK_TEXT (editable));
3976 gtk_text_move_forward_word (GtkText *text)
3978 text->cursor_virtual_x = 0;
3980 undraw_cursor (text, FALSE);
3982 while (!LAST_INDEX (text, text->cursor_mark) &&
3983 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3984 advance_mark (&text->cursor_mark);
3986 while (!LAST_INDEX (text, text->cursor_mark) &&
3987 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index)))
3988 advance_mark (&text->cursor_mark);
3990 find_cursor (text, TRUE);
3991 draw_cursor (text, FALSE);
3995 gtk_text_move_backward_word (GtkText *text)
3997 text->cursor_virtual_x = 0;
3999 undraw_cursor (text, FALSE);
4001 while ((text->cursor_mark.index > 0) &&
4002 !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4003 decrement_mark (&text->cursor_mark);
4005 while ((text->cursor_mark.index > 0) &&
4006 isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1)))
4007 decrement_mark (&text->cursor_mark);
4009 find_cursor (text, TRUE);
4010 draw_cursor (text, FALSE);
4014 gtk_text_move_page (GtkEditable *editable,
4019 scroll_int (GTK_TEXT (editable),
4020 y * GTK_TEXT(editable)->vadj->page_increment);
4024 gtk_text_move_to_row (GtkEditable *editable,
4030 gtk_text_move_to_column (GtkEditable *editable,
4035 text = GTK_TEXT (editable);
4037 text->cursor_virtual_x = 0; /* FIXME */
4039 undraw_cursor (text, FALSE);
4041 /* Move to the beginning of the line */
4042 while ((text->cursor_mark.index > 0) &&
4043 (GTK_TEXT_INDEX (text, text->cursor_mark.index - 1) != LINE_DELIM))
4044 decrement_mark (&text->cursor_mark);
4046 while (!LAST_INDEX (text, text->cursor_mark) &&
4047 (GTK_TEXT_INDEX (text, text->cursor_mark.index) != LINE_DELIM))
4051 else if (column == 0)
4054 advance_mark (&text->cursor_mark);
4057 find_cursor (text, TRUE);
4058 draw_cursor (text, FALSE);
4062 gtk_text_move_beginning_of_line (GtkText *text)
4064 gtk_text_move_to_column (GTK_EDITABLE (text), 0);
4069 gtk_text_move_end_of_line (GtkText *text)
4071 gtk_text_move_to_column (GTK_EDITABLE (text), -1);
4075 gtk_text_kill_char (GtkEditable *editable,
4080 text = GTK_TEXT (editable);
4082 if (editable->selection_start_pos != editable->selection_end_pos)
4083 gtk_editable_delete_selection (editable);
4088 if (text->point.index + 1 <= TEXT_LENGTH (text))
4089 gtk_editable_delete_text (editable, text->point.index, text->point.index + 1);
4093 if (text->point.index > 0)
4094 gtk_editable_delete_text (editable, text->point.index - 1, text->point.index);
4100 gtk_text_delete_forward_character (GtkText *text)
4102 gtk_text_kill_char (GTK_EDITABLE (text), 1);
4106 gtk_text_delete_backward_character (GtkText *text)
4108 gtk_text_kill_char (GTK_EDITABLE (text), -1);
4112 gtk_text_kill_word (GtkEditable *editable,
4115 if (editable->selection_start_pos != editable->selection_end_pos)
4116 gtk_editable_delete_selection (editable);
4119 gint old_pos = editable->current_pos;
4122 gtk_text_move_word (editable, 1);
4123 gtk_editable_delete_text (editable, old_pos, editable->current_pos);
4127 gtk_text_move_word (editable, -1);
4128 gtk_editable_delete_text (editable, editable->current_pos, old_pos);
4134 gtk_text_delete_forward_word (GtkText *text)
4136 gtk_text_kill_word (GTK_EDITABLE (text), 1);
4140 gtk_text_delete_backward_word (GtkText *text)
4142 gtk_text_kill_word (GTK_EDITABLE (text), -1);
4146 gtk_text_kill_line (GtkEditable *editable,
4149 gint old_pos = editable->current_pos;
4152 gtk_text_move_to_column (editable, -1);
4153 gtk_editable_delete_text (editable, old_pos, editable->current_pos);
4157 gtk_text_move_to_column (editable, 0);
4158 gtk_editable_delete_text (editable, editable->current_pos, old_pos);
4163 gtk_text_delete_line (GtkText *text)
4165 gtk_text_move_to_column (GTK_EDITABLE (text), 0);
4166 gtk_text_kill_line (GTK_EDITABLE (text), 1);
4170 gtk_text_delete_to_line_end (GtkText *text)
4172 gtk_text_kill_line (GTK_EDITABLE (text), 1);
4176 gtk_text_select_word (GtkText *text, guint32 time)
4181 GtkEditable *editable;
4182 editable = GTK_EDITABLE (text);
4184 gtk_text_move_backward_word (text);
4185 start_pos = text->cursor_mark.index;
4187 gtk_text_move_forward_word (text);
4188 end_pos = text->cursor_mark.index;
4190 editable->has_selection = TRUE;
4191 gtk_text_set_selection (editable, start_pos, end_pos);
4192 gtk_editable_claim_selection (editable, start_pos != end_pos, time);
4196 gtk_text_select_line (GtkText *text, guint32 time)
4201 GtkEditable *editable;
4202 editable = GTK_EDITABLE (text);
4204 gtk_text_move_beginning_of_line (text);
4205 start_pos = text->cursor_mark.index;
4207 gtk_text_move_end_of_line (text);
4208 gtk_text_move_forward_character (text);
4209 end_pos = text->cursor_mark.index;
4211 editable->has_selection = TRUE;
4212 gtk_text_set_selection (editable, start_pos, end_pos);
4213 gtk_editable_claim_selection (editable, start_pos != end_pos, time);
4216 /**********************************************************************/
4218 /**********************************************************************/
4221 adjust_adj (GtkText* text, GtkAdjustment* adj)
4225 gdk_window_get_size (text->text_area, NULL, &height);
4227 adj->step_increment = MIN (adj->upper, (float) SCROLL_PIXELS);
4228 adj->page_increment = MIN (adj->upper, height - (float) KEY_SCROLL_PIXELS);
4229 adj->page_size = MIN (adj->upper, height);
4230 adj->value = MIN (adj->value, adj->upper - adj->page_size);
4231 adj->value = MAX (adj->value, 0.0);
4233 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
4237 set_vertical_scroll_iterator (GtkText* text, LineParams* lp, void* data)
4239 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4241 if ((text->first_line_start_index >= lp->start.index) &&
4242 (text->first_line_start_index <= lp->end.index))
4244 svdata->mark = lp->start;
4246 if (text->first_line_start_index == lp->start.index)
4248 text->first_onscreen_ver_pixel = svdata->pixel_height + text->first_cut_pixels;
4252 text->first_onscreen_ver_pixel = svdata->pixel_height;
4253 text->first_cut_pixels = 0;
4256 text->vadj->value = (float) text->first_onscreen_ver_pixel;
4259 svdata->pixel_height += LINE_HEIGHT (*lp);
4265 set_vertical_scroll_find_iterator (GtkText* text, LineParams* lp, void* data)
4267 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4270 if (svdata->pixel_height <= (gint) text->vadj->value &&
4271 svdata->pixel_height + LINE_HEIGHT(*lp) > (gint) text->vadj->value)
4273 svdata->mark = lp->start;
4275 text->first_cut_pixels = (gint)text->vadj->value - svdata->pixel_height;
4276 text->first_onscreen_ver_pixel = svdata->pixel_height;
4277 text->first_line_start_index = lp->start.index;
4283 svdata->pixel_height += LINE_HEIGHT (*lp);
4291 static GtkPropertyMark
4292 set_vertical_scroll (GtkText* text)
4294 GtkPropertyMark mark = find_mark (text, 0);
4295 SetVerticalScrollData data;
4299 data.pixel_height = 0;
4300 line_params_iterate (text, &mark, NULL, FALSE, &data, set_vertical_scroll_iterator);
4302 text->vadj->upper = (float) data.pixel_height;
4303 orig_value = (gint) text->vadj->value;
4305 gdk_window_get_size (text->text_area, NULL, &height);
4307 text->vadj->step_increment = MIN (text->vadj->upper, (float) SCROLL_PIXELS);
4308 text->vadj->page_increment = MIN (text->vadj->upper, height - (float) KEY_SCROLL_PIXELS);
4309 text->vadj->page_size = MIN (text->vadj->upper, height);
4310 text->vadj->value = MIN (text->vadj->value, text->vadj->upper - text->vadj->page_size);
4311 text->vadj->value = MAX (text->vadj->value, 0.0);
4313 text->last_ver_value = (gint)text->vadj->value;
4315 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "changed");
4317 if (text->vadj->value != orig_value)
4319 /* We got clipped, and don't really know which line to put first. */
4320 data.pixel_height = 0;
4321 data.last_didnt_wrap = TRUE;
4323 line_params_iterate (text, &mark, NULL,
4325 set_vertical_scroll_find_iterator);
4332 scroll_int (GtkText* text, gint diff)
4336 text->vadj->value += diff;
4338 upper = text->vadj->upper - text->vadj->page_size;
4339 text->vadj->value = MIN (text->vadj->value, upper);
4340 text->vadj->value = MAX (text->vadj->value, 0.0);
4342 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "value_changed");
4346 process_exposes (GtkText *text)
4350 /* Make sure graphics expose events are processed before scrolling
4353 while ((event = gdk_event_get_graphics_expose (text->text_area)) != NULL)
4355 gtk_widget_event (GTK_WIDGET (text), event);
4356 if (event->expose.count == 0)
4358 gdk_event_free (event);
4361 gdk_event_free (event);
4365 static gint last_visible_line_height (GtkText* text)
4367 GList *cache = text->line_start_cache;
4370 gdk_window_get_size (text->text_area, NULL, &height);
4372 for (; cache->next; cache = cache->next)
4373 if (pixel_height_of(text, cache->next) > height)
4377 return pixel_height_of(text, cache) - 1;
4382 static gint first_visible_line_height (GtkText* text)
4384 if (text->first_cut_pixels)
4385 return pixel_height_of(text, text->line_start_cache) + 1;
4391 scroll_down (GtkText* text, gint diff0)
4397 text->first_onscreen_ver_pixel += diff0;
4401 g_assert (text->line_start_cache);
4403 if (text->first_cut_pixels < LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1)
4405 text->first_cut_pixels += 1;
4409 text->first_cut_pixels = 0;
4411 text->line_start_cache = text->line_start_cache->next;
4413 text->first_line_start_index =
4414 CACHE_DATA(text->line_start_cache).start.index;
4416 if (!text->line_start_cache->next)
4417 fetch_lines_forward (text, 1);
4423 gdk_window_get_size (text->text_area, &width, &height);
4424 if (height > real_diff)
4425 gdk_draw_pixmap (text->text_area,
4433 height - real_diff);
4436 rect.y = MAX (0, height - real_diff);
4438 rect.height = MIN (height, real_diff);
4440 expose_text (text, &rect, FALSE);
4441 gtk_text_draw_focus ( (GtkWidget *) text);
4443 if (text->current_line)
4447 text->cursor_pos_y -= real_diff;
4448 cursor_min = drawn_cursor_min(text);
4451 find_mouse_cursor (text, text->cursor_pos_x,
4452 first_visible_line_height (text));
4455 if (height > real_diff)
4456 process_exposes (text);
4460 scroll_up (GtkText* text, gint diff0)
4466 text->first_onscreen_ver_pixel += diff0;
4470 g_assert (text->line_start_cache);
4472 if (text->first_cut_pixels > 0)
4474 text->first_cut_pixels -= 1;
4478 if (!text->line_start_cache->prev)
4479 fetch_lines_backward (text);
4481 text->line_start_cache = text->line_start_cache->prev;
4483 text->first_line_start_index =
4484 CACHE_DATA(text->line_start_cache).start.index;
4486 text->first_cut_pixels = LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1;
4492 gdk_window_get_size (text->text_area, &width, &height);
4493 if (height > real_diff)
4494 gdk_draw_pixmap (text->text_area,
4502 height - real_diff);
4507 rect.height = MIN (height, real_diff);
4509 expose_text (text, &rect, FALSE);
4510 gtk_text_draw_focus ( (GtkWidget *) text);
4512 if (text->current_line)
4517 text->cursor_pos_y += real_diff;
4518 cursor_max = drawn_cursor_max(text);
4519 gdk_window_get_size (text->text_area, NULL, &height);
4521 if (cursor_max >= height)
4522 find_mouse_cursor (text, text->cursor_pos_x,
4523 last_visible_line_height (text));
4526 if (height > real_diff)
4527 process_exposes (text);
4530 /**********************************************************************/
4532 /**********************************************************************/
4534 /* Assumes mark starts a line. Calculates the height, width, and
4535 * displayable character count of a single DISPLAYABLE line. That
4536 * means that in line-wrap mode, this does may not compute the
4537 * properties of an entire line. */
4539 find_line_params (GtkText* text,
4540 const GtkPropertyMark* mark,
4541 const PrevTabCont *tab_cont,
4542 PrevTabCont *next_cont)
4545 TabStopMark tab_mark = tab_cont->tab_start;
4546 guint max_display_pixels;
4551 gdk_window_get_size (text->text_area, (gint*) &max_display_pixels, NULL);
4552 max_display_pixels -= LINE_WRAP_ROOM;
4555 lp.tab_cont = *tab_cont;
4558 lp.pixel_width = tab_cont->pixel_offset;
4559 lp.displayable_chars = 0;
4561 lp.font_descent = 0;
4563 init_tab_cont (text, next_cont);
4565 while (!LAST_INDEX(text, lp.end))
4567 g_assert (lp.end.property);
4569 ch = GTK_TEXT_INDEX (text, lp.end.index);
4570 font = MARK_CURRENT_FONT (text, &lp.end);
4572 if (ch == LINE_DELIM)
4574 /* Newline doesn't count in computation of line height, even
4575 * if its in a bigger font than the rest of the line. Unless,
4576 * of course, there are no other characters. */
4578 if (!lp.font_ascent && !lp.font_descent)
4580 lp.font_ascent = font->ascent;
4581 lp.font_descent = font->descent;
4584 lp.tab_cont_next = *next_cont;
4589 ch_width = find_char_width (text, &lp.end, &tab_mark);
4591 if ((ch_width + lp.pixel_width > max_display_pixels) &&
4592 (lp.end.index > lp.start.index))
4596 if (text->line_wrap)
4598 next_cont->tab_start = tab_mark;
4599 next_cont->pixel_offset = 0;
4603 /* Here's the tough case, a tab is wrapping. */
4604 gint pixels_avail = max_display_pixels - lp.pixel_width;
4605 gint space_width = MARK_CURRENT_TEXT_FONT(text, &lp.end)->char_widths[' '];
4606 gint spaces_avail = pixels_avail / space_width;
4608 if (spaces_avail == 0)
4610 decrement_mark (&lp.end);
4614 advance_tab_mark (text, &next_cont->tab_start, '\t');
4615 next_cont->pixel_offset = space_width * (tab_mark.to_next_tab -
4617 lp.displayable_chars += 1;
4622 if (text->word_wrap)
4624 GtkPropertyMark saved_mark = lp.end;
4625 guint saved_characters = lp.displayable_chars;
4627 lp.displayable_chars += 1;
4629 while (!isspace (GTK_TEXT_INDEX (text, lp.end.index)) &&
4630 (lp.end.index > lp.start.index))
4632 decrement_mark (&lp.end);
4633 lp.displayable_chars -= 1;
4636 /* If whole line is one word, revert to char wrapping */
4637 if (lp.end.index == lp.start.index)
4639 lp.end = saved_mark;
4640 lp.displayable_chars = saved_characters;
4641 decrement_mark (&lp.end);
4646 /* Don't include this character, it will wrap. */
4647 decrement_mark (&lp.end);
4651 lp.tab_cont_next = *next_cont;
4658 lp.displayable_chars += 1;
4661 lp.font_ascent = MAX (font->ascent, lp.font_ascent);
4662 lp.font_descent = MAX (font->descent, lp.font_descent);
4663 lp.pixel_width += ch_width;
4665 advance_mark(&lp.end);
4666 advance_tab_mark (text, &tab_mark, ch);
4669 if (LAST_INDEX(text, lp.start))
4671 /* Special case, empty last line. */
4672 font = MARK_CURRENT_FONT (text, &lp.end);
4674 lp.font_ascent = font->ascent;
4675 lp.font_descent = font->descent;
4678 lp.tab_cont_next = *next_cont;
4684 expand_scratch_buffer (GtkText* text, guint len)
4686 if (len >= text->scratch_buffer_len)
4690 while (i <= len && i < MIN_GAP_SIZE) i <<= 1;
4692 if (text->scratch_buffer)
4693 text->scratch_buffer = g_new (guchar, i);
4695 text->scratch_buffer = g_realloc (text->scratch_buffer, i);
4697 text->scratch_buffer_len = i;
4701 /* Side effect: modifies text->gc
4705 draw_bg_rect (GtkText* text, GtkPropertyMark *mark,
4706 gint x, gint y, gint width, gint height,
4707 gboolean already_cleared)
4709 GtkEditable *editable = GTK_EDITABLE(text);
4711 if ((mark->index >= MIN(editable->selection_start_pos, editable->selection_end_pos) &&
4712 mark->index < MAX(editable->selection_start_pos, editable->selection_end_pos)))
4714 gtk_paint_flat_box(GTK_WIDGET(text)->style, text->text_area,
4715 editable->has_selection ?
4716 GTK_STATE_SELECTED : GTK_STATE_ACTIVE,
4718 NULL, GTK_WIDGET(text), "text",
4719 x, y, width, height);
4721 else if (!gdk_color_equal(MARK_CURRENT_BACK (text, mark),
4722 >K_WIDGET(text)->style->base[GTK_STATE_NORMAL]))
4724 gdk_gc_set_foreground (text->gc, MARK_CURRENT_BACK (text, mark));
4726 gdk_draw_rectangle (text->text_area,
4728 TRUE, x, y, width, height);
4730 else if (GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL])
4737 rect.height = height;
4739 clear_area (text, &rect);
4741 else if (!already_cleared)
4742 gdk_window_clear_area (text->text_area, x, y, width, height);
4746 draw_line (GtkText* text,
4747 gint pixel_start_height,
4750 GdkGCValues gc_values;
4753 guint running_offset = lp->tab_cont.pixel_offset;
4757 GtkEditable *editable = GTK_EDITABLE(text);
4759 guint selection_start_pos = MIN (editable->selection_start_pos, editable->selection_end_pos);
4760 guint selection_end_pos = MAX (editable->selection_start_pos, editable->selection_end_pos);
4762 GtkPropertyMark mark = lp->start;
4763 TabStopMark tab_mark = lp->tab_cont.tab_start;
4764 gint pixel_height = pixel_start_height + lp->font_ascent;
4765 guint chars = lp->displayable_chars;
4767 /* First provide a contiguous segment of memory. This makes reading
4768 * the code below *much* easier, and only incurs the cost of copying
4769 * when the line being displayed spans the gap. */
4770 if (mark.index <= text->gap_position &&
4771 mark.index + chars > text->gap_position)
4773 expand_scratch_buffer (text, chars);
4775 for (i = 0; i < chars; i += 1)
4776 text->scratch_buffer[i] = GTK_TEXT_INDEX(text, mark.index + i);
4778 buffer = text->scratch_buffer;
4782 if (mark.index >= text->gap_position)
4783 buffer = text->text + mark.index + text->gap_size;
4785 buffer = text->text + mark.index;
4789 if (running_offset > 0)
4791 draw_bg_rect (text, &mark, 0, pixel_start_height, running_offset,
4792 LINE_HEIGHT (*lp), TRUE);
4795 for (; chars > 0; chars -= len, buffer += len, len = 0)
4797 if (buffer[0] != '\t')
4799 guchar* next_tab = memchr (buffer, '\t', chars);
4803 len = MIN (MARK_CURRENT_PROPERTY (&mark)->length - mark.offset, chars);
4806 len = MIN (len, next_tab - buffer);
4808 if (mark.index < selection_start_pos)
4809 len = MIN (len, selection_start_pos - mark.index);
4810 else if (mark.index < selection_end_pos)
4811 len = MIN (len, selection_end_pos - mark.index);
4813 font = MARK_CURRENT_FONT (text, &mark);
4814 if (font->type == GDK_FONT_FONT)
4816 gdk_gc_set_font (text->gc, font);
4817 gdk_gc_get_values (text->gc, &gc_values);
4818 pixel_width = gdk_text_width (gc_values.font,
4819 (gchar*) buffer, len);
4822 pixel_width = gdk_text_width (font, (gchar*) buffer, len);
4824 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4825 pixel_width, LINE_HEIGHT (*lp), TRUE);
4827 if ((mark.index >= selection_start_pos) &&
4828 (mark.index < selection_end_pos))
4830 if (editable->has_selection)
4831 fg_gc = GTK_WIDGET(text)->style->fg_gc[GTK_STATE_SELECTED];
4833 fg_gc = GTK_WIDGET(text)->style->fg_gc[GTK_STATE_ACTIVE];
4837 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &mark));
4841 gdk_draw_text (text->text_area, MARK_CURRENT_FONT (text, &mark),
4848 running_offset += pixel_width;
4850 advance_tab_mark_n (text, &tab_mark, len);
4854 gint pixels_remaining;
4860 gdk_window_get_size (text->text_area, &pixels_remaining, NULL);
4861 pixels_remaining -= (LINE_WRAP_ROOM + running_offset);
4863 space_width = MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
4865 spaces_avail = pixels_remaining / space_width;
4866 spaces_avail = MIN (spaces_avail, tab_mark.to_next_tab);
4868 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
4869 spaces_avail * space_width, LINE_HEIGHT (*lp), TRUE);
4871 running_offset += tab_mark.to_next_tab *
4872 MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
4874 advance_tab_mark (text, &tab_mark, '\t');
4877 advance_mark_n (&mark, len);
4882 draw_line_wrap (GtkText* text, guint height /* baseline height */)
4889 if (text->line_wrap)
4891 bitmap = text->line_wrap_bitmap;
4892 bitmap_width = line_wrap_width;
4893 bitmap_height = line_wrap_height;
4897 bitmap = text->line_arrow_bitmap;
4898 bitmap_width = line_arrow_width;
4899 bitmap_height = line_arrow_height;
4902 gdk_window_get_size (text->text_area, &width, NULL);
4903 width -= LINE_WRAP_ROOM;
4905 gdk_gc_set_stipple (text->gc,
4908 gdk_gc_set_fill (text->gc, GDK_STIPPLED);
4910 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
4912 gdk_gc_set_ts_origin (text->gc,
4914 height - bitmap_height - 1);
4916 gdk_draw_rectangle (text->text_area,
4920 height - bitmap_height - 1 /* one pixel above the baseline. */,
4924 gdk_gc_set_ts_origin (text->gc, 0, 0);
4926 gdk_gc_set_fill (text->gc, GDK_SOLID);
4930 undraw_cursor (GtkText* text, gint absolute)
4932 GtkEditable *editable = (GtkEditable *)text;
4934 TDEBUG (("in undraw_cursor\n"));
4937 text->cursor_drawn_level = 0;
4939 if ((text->cursor_drawn_level ++ == 0) &&
4940 (editable->selection_start_pos == editable->selection_end_pos) &&
4941 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
4945 g_assert(text->cursor_mark.property);
4947 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
4949 draw_bg_rect (text, &text->cursor_mark,
4951 text->cursor_pos_y - text->cursor_char_offset - font->ascent,
4952 1, font->ascent + 1, FALSE);
4954 if (text->cursor_char)
4956 if (font->type == GDK_FONT_FONT)
4957 gdk_gc_set_font (text->gc, font);
4959 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &text->cursor_mark));
4961 gdk_draw_text (text->text_area, font,
4964 text->cursor_pos_y - text->cursor_char_offset,
4972 drawn_cursor_min (GtkText* text)
4976 g_assert(text->cursor_mark.property);
4978 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
4980 return text->cursor_pos_y - text->cursor_char_offset - font->ascent;
4984 drawn_cursor_max (GtkText* text)
4988 g_assert(text->cursor_mark.property);
4990 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
4992 return text->cursor_pos_y - text->cursor_char_offset;
4996 draw_cursor (GtkText* text, gint absolute)
4998 GtkEditable *editable = (GtkEditable *)text;
5000 TDEBUG (("in draw_cursor\n"));
5003 text->cursor_drawn_level = 1;
5005 if ((--text->cursor_drawn_level == 0) &&
5006 editable->editable &&
5007 (editable->selection_start_pos == editable->selection_end_pos) &&
5008 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5012 g_assert (text->cursor_mark.property);
5014 font = MARK_CURRENT_FONT (text, &text->cursor_mark);
5016 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5018 gdk_draw_line (text->text_area, text->gc, text->cursor_pos_x,
5019 text->cursor_pos_y - text->cursor_char_offset,
5021 text->cursor_pos_y - text->cursor_char_offset - font->ascent);
5026 clear_area (GtkText *text, GdkRectangle *area)
5028 GtkWidget *widget = GTK_WIDGET (text);
5030 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
5033 gint x = area->x, y = area->y;
5036 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
5038 yorig = - text->first_onscreen_ver_pixel;
5039 xorig = - text->first_onscreen_hor_pixel;
5041 for (y = area->y; y < area->y + area->height; )
5043 gint yoff = (y - yorig) % height;
5044 gint yw = MIN(height - yoff, (area->y + area->height) - y);
5046 for (x = area->x; x < area->x + area->width; )
5048 gint xoff = (x - xorig) % width;
5049 gint xw = MIN(width - xoff, (area->x + area->width) - x);
5051 gdk_draw_pixmap (text->text_area,
5053 widget->style->bg_pixmap[GTK_STATE_NORMAL],
5067 gdk_window_clear_area (text->text_area, area->x, area->y, area->width, area->height);
5071 expose_text (GtkText* text, GdkRectangle *area, gboolean cursor)
5073 GList *cache = text->line_start_cache;
5074 gint pixels = - text->first_cut_pixels;
5075 gint min_y = MAX (0, area->y);
5076 gint max_y = MAX (0, area->y + area->height);
5079 gdk_window_get_size (text->text_area, NULL, &height);
5080 max_y = MIN (max_y, height);
5082 TDEBUG (("in expose x=%d y=%d w=%d h=%d\n", area->x, area->y, area->width, area->height));
5084 clear_area (text, area);
5086 for (; pixels < height; cache = cache->next)
5088 if (pixels < max_y && (pixels + (gint)LINE_HEIGHT(CACHE_DATA(cache))) >= min_y)
5090 draw_line (text, pixels, &CACHE_DATA(cache));
5092 if (CACHE_DATA(cache).wraps)
5093 draw_line_wrap (text, pixels + CACHE_DATA(cache).font_ascent);
5096 if (cursor && GTK_WIDGET_HAS_FOCUS (text))
5098 if (CACHE_DATA(cache).start.index <= text->cursor_mark.index &&
5099 CACHE_DATA(cache).end.index >= text->cursor_mark.index)
5101 /* We undraw and draw the cursor here to get the drawn
5102 * level right ... FIXME - maybe the second parameter
5103 * of draw_cursor should work differently
5105 undraw_cursor (text, FALSE);
5106 draw_cursor (text, FALSE);
5110 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5114 fetch_lines_forward (text, 1);
5123 gtk_text_update_text (GtkEditable *editable,
5127 GtkText *text = GTK_TEXT (editable);
5129 GList *cache = text->line_start_cache;
5130 gint pixels = - text->first_cut_pixels;
5136 end_pos = TEXT_LENGTH (text);
5138 if (end_pos < start_pos)
5141 gdk_window_get_size (text->text_area, &width, &height);
5147 TDEBUG (("in expose span start=%d stop=%d\n", start_pos, end_pos));
5149 for (; pixels < height; cache = cache->next)
5151 if (CACHE_DATA(cache).start.index < end_pos)
5153 if (CACHE_DATA(cache).end.index >= start_pos)
5156 area.y = MAX(0,pixels);
5157 area.height = pixels + LINE_HEIGHT(CACHE_DATA(cache)) - area.y;
5163 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5167 fetch_lines_forward (text, 1);
5175 expose_text (text, &area, TRUE);
5179 recompute_geometry (GtkText* text)
5181 GtkPropertyMark mark, start_mark;
5188 mark = start_mark = set_vertical_scroll (text);
5190 /* We need a real start of a line when calling fetch_lines().
5191 * not the start of a wrapped line.
5193 while (mark.index > 0 &&
5194 GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
5195 decrement_mark (&mark);
5197 gdk_window_get_size (text->text_area, &width, &height);
5199 /* Fetch an entire line, to make sure that we get all the text
5200 * we backed over above, in addition to enough text to fill up
5201 * the space vertically
5204 new_lines = fetch_lines (text,
5210 mark = CACHE_DATA (g_list_last (new_lines)).end;
5211 if (!LAST_INDEX (text, mark))
5213 advance_mark (&mark);
5215 new_lines = g_list_concat (new_lines,
5220 height + text->first_cut_pixels));
5223 /* Now work forward to the actual first onscreen line */
5225 while (CACHE_DATA (new_lines).start.index < start_mark.index)
5226 new_lines = new_lines->next;
5228 text->line_start_cache = new_lines;
5230 find_cursor (text, TRUE);
5233 /**********************************************************************/
5235 /**********************************************************************/
5238 gtk_text_set_selection (GtkEditable *editable,
5242 GtkText *text = GTK_TEXT (editable);
5244 guint start1, end1, start2, end2;
5247 end = TEXT_LENGTH (text);
5249 start1 = MIN(start,end);
5250 end1 = MAX(start,end);
5251 start2 = MIN(editable->selection_start_pos, editable->selection_end_pos);
5252 end2 = MAX(editable->selection_start_pos, editable->selection_end_pos);
5254 if (start2 < start1)
5258 tmp = start1; start1 = start2; start2 = tmp;
5259 tmp = end1; end1 = end2; end2 = tmp;
5262 undraw_cursor (text, FALSE);
5263 editable->selection_start_pos = start;
5264 editable->selection_end_pos = end;
5265 draw_cursor (text, FALSE);
5267 /* Expose only what changed */
5269 if (start1 < start2)
5270 gtk_text_update_text (editable, start1, MIN(end1, start2));
5273 gtk_text_update_text (editable, MAX(end1, start2), end2);
5274 else if (end2 < end1)
5275 gtk_text_update_text (editable, end2, end1);
5279 /**********************************************************************/
5281 /**********************************************************************/
5283 #ifdef DEBUG_GTK_TEXT
5285 gtk_text_show_cache_line (GtkText *text, GList *cache,
5286 const char* what, const char* func, gint line)
5288 LineParams *lp = &CACHE_DATA(cache);
5291 if (cache == text->line_start_cache)
5292 g_message ("Line Start Cache: ");
5294 if (cache == text->current_line)
5295 g_message("Current Line: ");
5297 g_message ("%s:%d: cache line %s s=%d,e=%d,lh=%d (",
5305 for (i = lp->start.index; i < (lp->end.index + lp->wraps); i += 1)
5306 g_message ("%c", GTK_TEXT_INDEX (text, i));
5312 gtk_text_show_cache (GtkText *text, const char* func, gint line)
5314 GList *l = text->line_start_cache;
5320 /* back up to the absolute beginning of the line cache */
5324 g_message ("*** line cache ***\n");
5325 for (; l; l = l->next)
5326 gtk_text_show_cache_line (text, l, "all", func, line);
5330 gtk_text_assert_mark (GtkText *text,
5331 GtkPropertyMark *mark,
5332 GtkPropertyMark *before,
5333 GtkPropertyMark *after,
5338 GtkPropertyMark correct_mark = find_mark (text, mark->index);
5340 if (mark->offset != correct_mark.offset ||
5341 mark->property != correct_mark.property)
5342 g_warning ("incorrect %s text property marker in %s:%d, index %d -- bad!", where, msg, line, mark->index);
5346 gtk_text_assert (GtkText *text,
5350 GList* cache = text->line_start_cache;
5351 GtkPropertyMark* before_mark = NULL;
5352 GtkPropertyMark* after_mark = NULL;
5354 gtk_text_show_props (text, msg, line);
5356 for (; cache->prev; cache = cache->prev)
5359 g_message ("*** line markers ***\n");
5361 for (; cache; cache = cache->next)
5363 after_mark = &CACHE_DATA(cache).end;
5364 gtk_text_assert_mark (text, &CACHE_DATA(cache).start, before_mark, after_mark, msg, "start", line);
5365 before_mark = &CACHE_DATA(cache).start;
5368 after_mark = &CACHE_DATA(cache->next).start;
5372 gtk_text_assert_mark (text, &CACHE_DATA(cache).end, before_mark, after_mark, msg, "end", line);
5373 before_mark = &CACHE_DATA(cache).end;
5378 gtk_text_show_adj (GtkText *text,
5384 g_message ("*** adjustment ***\n");
5386 g_message ("%s:%d: %s adjustment l=%.1f u=%.1f v=%.1f si=%.1f pi=%.1f ps=%.1f\n",
5393 adj->step_increment,
5394 adj->page_increment,
5399 gtk_text_show_props (GtkText *text,
5403 GList* props = text->text_properties;
5406 g_message ("%s:%d: ", msg, line);
5408 for (; props; props = props->next)
5410 TextProperty *p = (TextProperty*)props->data;
5412 proplen += p->length;
5414 g_message ("[%d,%p,", p->length, p);
5415 if (p->flags & PROPERTY_FONT)
5416 g_message ("%p,", p->font);
5419 if (p->flags & PROPERTY_FOREGROUND)
5420 g_message ("%ld, ", p->fore_color.pixel);
5423 if (p->flags & PROPERTY_BACKGROUND)
5424 g_message ("%ld] ", p->back_color.pixel);
5431 if (proplen - 1 != TEXT_LENGTH(text))
5432 g_warning ("incorrect property list length in %s:%d -- bad!", msg, line);