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 * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
28 * Modified by the Sylpheed Team and others 2001-2002. Interesting
29 * parts are marked using comment block following this one.
30 * This modification is based on the GtkText of GTK 1.2.10
43 #include <gdk/gdkkeysyms.h>
44 #include <gdk/gdki18n.h>
45 #include <gtk/gtkmain.h>
46 #include <gtk/gtkselection.h>
47 #include <gtk/gtksignal.h>
54 #define line_arrow_width 6
55 #define line_arrow_height 9
56 static unsigned char line_arrow_bits[] = {
57 0x00, 0x00, 0x04, 0x0c, 0x18, 0x3f, 0x18, 0x0c, 0x04};
60 #define line_wrap_width 6
61 #define line_wrap_height 9
62 static unsigned char line_wrap_bits[] = {
63 0x1e, 0x3e, 0x30, 0x30, 0x39, 0x1f, 0x0f, 0x0f, 0x1f, };
66 * compile time settings
68 #define INITIAL_BUFFER_SIZE 1024
69 #define INITIAL_LINE_CACHE_SIZE 256
70 #define MIN_GAP_SIZE 256
73 * intending to introduce a paragraph delimiter '\r' because
74 * '\r' are being stripped by sylpheed
76 #define LINE_DELIM '\n'
77 #define MIN_TEXT_WIDTH_LINES 20
78 #define MIN_TEXT_HEIGHT_LINES 10
79 #define TEXT_BORDER_ROOM 1
80 #define LINE_WRAP_ROOM 8 /* The bitmaps are 6 wide. */
81 #define DEFAULT_TAB_STOP_WIDTH 4
82 #define SCROLL_PIXELS 5
83 #define KEY_SCROLL_PIXELS 10
84 #define SCROLL_TIME 100
85 #define FREEZE_LENGTH 1024
86 /* Freeze text when inserting or deleting more than this many characters */
89 * could also mark paragraphs using marks, but don't know anything yet
90 * about consistency when characters are removed
92 #define SET_PROPERTY_MARK(m, p, o) do { \
93 (m)->property = (p); \
96 #define MARK_CURRENT_PROPERTY(mark) ((TextProperty*)(mark)->property->data)
97 #define MARK_NEXT_PROPERTY(mark) ((TextProperty*)(mark)->property->next->data)
98 #define MARK_PREV_PROPERTY(mark) ((TextProperty*)((mark)->property->prev ? \
99 (mark)->property->prev->data \
101 #define MARK_PREV_LIST_PTR(mark) ((mark)->property->prev)
102 #define MARK_LIST_PTR(mark) ((mark)->property)
103 #define MARK_NEXT_LIST_PTR(mark) ((mark)->property->next)
104 #define MARK_OFFSET(mark) ((mark)->offset)
105 #define MARK_PROPERTY_LENGTH(mark) (MARK_CURRENT_PROPERTY(mark)->length)
108 #define MARK_CURRENT_FONT(text, mark) \
109 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
110 MARK_CURRENT_PROPERTY(mark)->font->gdk_font : \
111 GTK_WIDGET (text)->style->font)
112 #define MARK_CURRENT_FORE(text, mark) \
113 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FOREGROUND) ? \
114 &MARK_CURRENT_PROPERTY(mark)->fore_color : \
115 &((GtkWidget *)text)->style->text[((GtkWidget *)text)->state])
116 #define MARK_CURRENT_BACK(text, mark) \
117 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_BACKGROUND) ? \
118 &MARK_CURRENT_PROPERTY(mark)->back_color : \
119 &((GtkWidget *)text)->style->base[((GtkWidget *)text)->state])
120 #define MARK_CURRENT_TEXT_FONT(text, mark) \
121 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
122 MARK_CURRENT_PROPERTY(mark)->font : \
125 #define TEXT_LENGTH(t) ((t)->text_end - (t)->gap_size)
126 #define FONT_HEIGHT(f) ((f)->ascent + (f)->descent)
127 #define LINE_HEIGHT(l) ((l).font_ascent + (l).font_descent)
128 #define LINE_CONTAINS(l, i) ((l).start.index <= (i) && (l).end.index >= (i))
129 #define LINE_STARTS_AT(l, i) ((l).start.index == (i))
130 #define LINE_START_PIXEL(l) ((l).tab_cont.pixel_offset)
131 #define LAST_INDEX(t, m) ((m).index == TEXT_LENGTH(t))
132 #define CACHE_DATA(c) (*(LineParams*)(c)->data)
142 typedef struct _TextProperty TextProperty;
143 typedef struct _TabStopMark TabStopMark;
144 typedef struct _PrevTabCont PrevTabCont;
145 typedef struct _FetchLinesData FetchLinesData;
146 typedef struct _LineParams LineParams;
147 typedef struct _SetVerticalScrollData SetVerticalScrollData;
152 typedef gint (*LineIteratorFunction) (GtkSText* text, LineParams* lp, void* data);
160 struct _SetVerticalScrollData {
162 gint last_didnt_wrap;
163 gint last_line_start;
164 GtkSPropertyMark mark;
169 /* The actual font. */
173 gint16 char_widths[256];
177 PROPERTY_FONT = 1 << 0,
178 PROPERTY_FOREGROUND = 1 << 1,
179 PROPERTY_BACKGROUND = 1 << 2
187 /* Background Color. */
190 /* Foreground Color. */
193 /* Show which properties are set */
194 TextPropertyFlags flags;
196 /* Length of this property. */
202 GList* tab_stops; /* Index into list containing the next tab position. If
203 * NULL, using default widths. */
210 TabStopMark tab_start;
213 struct _FetchLinesData
226 guint displayable_chars;
229 PrevTabCont tab_cont;
230 PrevTabCont tab_cont_next;
232 GtkSPropertyMark start;
233 GtkSPropertyMark end;
237 static void gtk_stext_class_init (GtkSTextClass *klass);
238 static void gtk_stext_set_arg (GtkObject *object,
241 static void gtk_stext_get_arg (GtkObject *object,
244 static void gtk_stext_init (GtkSText *text);
245 static void gtk_stext_destroy (GtkObject *object);
246 static void gtk_stext_finalize (GtkObject *object);
247 static void gtk_stext_realize (GtkWidget *widget);
248 static void gtk_stext_unrealize (GtkWidget *widget);
249 static void gtk_stext_style_set (GtkWidget *widget,
250 GtkStyle *previous_style);
251 static void gtk_stext_state_changed (GtkWidget *widget,
252 GtkStateType previous_state);
253 static void gtk_stext_draw_focus (GtkWidget *widget);
254 static void gtk_stext_size_request (GtkWidget *widget,
255 GtkRequisition *requisition);
256 static void gtk_stext_size_allocate (GtkWidget *widget,
257 GtkAllocation *allocation);
258 static void gtk_stext_adjustment (GtkAdjustment *adjustment,
260 static void gtk_stext_disconnect (GtkAdjustment *adjustment,
263 static void gtk_stext_insert_text (GtkEditable *editable,
264 const gchar *new_text,
265 gint new_text_length,
267 static void gtk_stext_delete_text (GtkEditable *editable,
270 static void gtk_stext_update_text (GtkEditable *editable,
273 static gchar *gtk_stext_get_chars (GtkEditable *editable,
276 static void gtk_stext_set_selection (GtkEditable *editable,
279 static void gtk_stext_real_set_editable(GtkEditable *editable,
280 gboolean is_editable);
283 static void gtk_stext_draw (GtkWidget *widget,
285 static gint gtk_stext_expose (GtkWidget *widget,
286 GdkEventExpose *event);
287 static gint gtk_stext_button_press (GtkWidget *widget,
288 GdkEventButton *event);
289 static gint gtk_stext_button_release (GtkWidget *widget,
290 GdkEventButton *event);
291 static gint gtk_stext_motion_notify (GtkWidget *widget,
292 GdkEventMotion *event);
293 static gint gtk_stext_key_press (GtkWidget *widget,
295 static gint gtk_stext_focus_in (GtkWidget *widget,
296 GdkEventFocus *event);
297 static gint gtk_stext_focus_out (GtkWidget *widget,
298 GdkEventFocus *event);
300 static void move_gap (GtkSText* text, guint index);
301 static void make_forward_space (GtkSText* text, guint len);
303 /* Property management */
304 static GtkSTextFont* get_text_font (GdkFont* gfont);
305 static void text_font_unref (GtkSTextFont *text_font);
307 static void insert_text_property (GtkSText* text, GdkFont* font,
308 GdkColor *fore, GdkColor* back, guint len);
309 static TextProperty* new_text_property (GtkSText *text, GdkFont* font,
310 GdkColor* fore, GdkColor* back, guint length);
311 static void destroy_text_property (TextProperty *prop);
312 static void init_properties (GtkSText *text);
313 static void realize_property (GtkSText *text, TextProperty *prop);
314 static void realize_properties (GtkSText *text);
315 static void unrealize_property (GtkSText *text, TextProperty *prop);
316 static void unrealize_properties (GtkSText *text);
318 static void delete_text_property (GtkSText* text, guint len);
320 static guint pixel_height_of (GtkSText* text, GList* cache_line);
322 /* Property Movement and Size Computations */
323 static void advance_mark (GtkSPropertyMark* mark);
324 static void decrement_mark (GtkSPropertyMark* mark);
325 static void advance_mark_n (GtkSPropertyMark* mark, gint n);
326 static void decrement_mark_n (GtkSPropertyMark* mark, gint n);
327 static void move_mark_n (GtkSPropertyMark* mark, gint n);
328 static GtkSPropertyMark find_mark (GtkSText* text, guint mark_position);
329 static GtkSPropertyMark find_mark_near (GtkSText* text, guint mark_position, const GtkSPropertyMark* near);
330 static void find_line_containing_point (GtkSText* text, guint point,
334 static void compute_lines_pixels (GtkSText* text, guint char_count,
335 guint *lines, guint *pixels);
337 static gint total_line_height (GtkSText* text,
340 static LineParams find_line_params (GtkSText* text,
341 const GtkSPropertyMark *mark,
342 const PrevTabCont *tab_cont,
343 PrevTabCont *next_cont);
344 static void recompute_geometry (GtkSText* text);
345 static void insert_expose (GtkSText* text, guint old_pixels, gint nchars, guint new_line_count);
346 static void delete_expose (GtkSText* text,
350 static GdkGC *create_bg_gc (GtkSText *text);
351 static void clear_area (GtkSText *text, GdkRectangle *area);
352 static void draw_line (GtkSText* text,
355 static void draw_line_wrap (GtkSText* text,
357 static void draw_cursor (GtkSText* text, gint absolute);
358 static void undraw_cursor (GtkSText* text, gint absolute);
359 static gint drawn_cursor_min (GtkSText* text);
360 static gint drawn_cursor_max (GtkSText* text);
361 static void expose_text (GtkSText* text, GdkRectangle *area, gboolean cursor);
363 /* Search and Placement. */
364 static void find_cursor (GtkSText* text,
366 static void find_cursor_at_line (GtkSText* text,
367 const LineParams* start_line,
369 static void find_mouse_cursor (GtkSText* text, gint x, gint y);
372 static void adjust_adj (GtkSText* text, GtkAdjustment* adj);
373 static void scroll_up (GtkSText* text, gint diff);
374 static void scroll_down (GtkSText* text, gint diff);
375 static void scroll_int (GtkSText* text, gint diff);
377 static void process_exposes (GtkSText *text);
379 /* Cache Management. */
380 static void free_cache (GtkSText* text);
381 static GList* remove_cache_line (GtkSText* text, GList* list);
384 static void move_cursor_buffer_ver (GtkSText *text, int dir);
385 static void move_cursor_page_ver (GtkSText *text, int dir);
386 static void move_cursor_ver (GtkSText *text, int count);
387 static void move_cursor_hor (GtkSText *text, int count);
391 static void move_cursor_to_display_row_end (GtkSText *text);
392 static void move_cursor_to_display_row_start (GtkSText *text);
393 static void move_cursor_to_display_row_up (GtkSText *text);
394 static void move_cursor_to_display_row_down (GtkSText *text);
395 static void reset_persist_col_pos (GtkSText *text);
397 /* Binding actions */
398 static void gtk_stext_move_cursor (GtkEditable *editable,
401 static void gtk_stext_move_word (GtkEditable *editable,
403 static void gtk_stext_move_page (GtkEditable *editable,
406 static void gtk_stext_move_to_row (GtkEditable *editable,
408 static void gtk_stext_move_to_column (GtkEditable *editable,
410 static void gtk_stext_kill_char (GtkEditable *editable,
412 static void gtk_stext_kill_word (GtkEditable *editable,
414 static void gtk_stext_kill_line (GtkEditable *editable,
419 static void gtk_stext_move_forward_character (GtkSText *text);
420 static void gtk_stext_move_backward_character (GtkSText *text);
421 static void gtk_stext_move_forward_word (GtkSText *text);
422 static void gtk_stext_move_backward_word (GtkSText *text);
423 static void gtk_stext_move_beginning_of_line (GtkSText *text);
424 static void gtk_stext_move_end_of_line (GtkSText *text);
425 static void gtk_stext_move_next_line (GtkSText *text);
426 static void gtk_stext_move_previous_line (GtkSText *text);
428 static void gtk_stext_delete_forward_character (GtkSText *text);
429 static void gtk_stext_delete_backward_character (GtkSText *text);
430 static void gtk_stext_delete_forward_word (GtkSText *text);
431 static void gtk_stext_delete_backward_word (GtkSText *text);
432 static void gtk_stext_delete_line (GtkSText *text);
433 static void gtk_stext_delete_to_line_end (GtkSText *text);
435 static void gtk_stext_select_word (GtkSText *text,
437 static void gtk_stext_select_line (GtkSText *text,
440 static void gtk_stext_set_position (GtkEditable *editable,
446 static void gtk_stext_enable_blink (GtkSText *text);
447 static void gtk_stext_disable_blink (GtkSText *text);
449 /* #define DEBUG_GTK_STEXT */
451 #if defined(DEBUG_GTK_STEXT) && defined(__GNUC__)
452 /* Debugging utilities. */
453 static void gtk_stext_assert_mark (GtkSText *text,
454 GtkSPropertyMark *mark,
455 GtkSPropertyMark *before,
456 GtkSPropertyMark *after,
461 static void gtk_stext_assert (GtkSText *text,
464 static void gtk_stext_show_cache_line (GtkSText *text, GList *cache,
465 const char* what, const char* func, gint line);
466 static void gtk_stext_show_cache (GtkSText *text, const char* func, gint line);
467 static void gtk_stext_show_adj (GtkSText *text,
472 static void gtk_stext_show_props (GtkSText* test,
476 #define TDEBUG(args) g_message args
477 #define TEXT_ASSERT(text) gtk_stext_assert (text,__PRETTY_FUNCTION__,__LINE__)
478 #define TEXT_ASSERT_MARK(text,mark,msg) gtk_stext_assert_mark (text,mark, \
479 __PRETTY_FUNCTION__,msg,__LINE__)
480 #define TEXT_SHOW(text) gtk_stext_show_cache (text, __PRETTY_FUNCTION__,__LINE__)
481 #define TEXT_SHOW_LINE(text,line,msg) gtk_stext_show_cache_line (text,line,msg,\
482 __PRETTY_FUNCTION__,__LINE__)
483 #define TEXT_SHOW_ADJ(text,adj,msg) gtk_stext_show_adj (text,adj,msg, \
484 __PRETTY_FUNCTION__,__LINE__)
487 #define TEXT_ASSERT(text)
488 #define TEXT_ASSERT_MARK(text,mark,msg)
489 #define TEXT_SHOW(text)
490 #define TEXT_SHOW_LINE(text,line,msg)
491 #define TEXT_SHOW_ADJ(text,adj,msg)
495 #if defined(AHX_DEBUG)
496 # define XDEBUG(args) g_message args
498 # define XDEBUG(args)
499 #endif /* AHX_DEBUG */
501 /* Memory Management. */
502 static GMemChunk *params_mem_chunk = NULL;
503 static GMemChunk *text_property_chunk = NULL;
505 static GtkWidgetClass *parent_class = NULL;
509 static const GtkTextFunction control_keys[26] =
511 (GtkTextFunction)gtk_stext_move_beginning_of_line, /* a */
512 (GtkTextFunction)gtk_stext_move_backward_character, /* b */
513 (GtkTextFunction)gtk_editable_copy_clipboard, /* c */
514 (GtkTextFunction)gtk_stext_delete_forward_character, /* d */
515 (GtkTextFunction)gtk_stext_move_end_of_line, /* e */
516 (GtkTextFunction)gtk_stext_move_forward_character, /* f */
518 (GtkTextFunction)gtk_stext_delete_backward_character,/* h */
521 (GtkTextFunction)gtk_stext_delete_to_line_end, /* k */
524 (GtkTextFunction)gtk_stext_move_next_line, /* n */
526 (GtkTextFunction)gtk_stext_move_previous_line, /* p */
531 (GtkTextFunction)gtk_stext_delete_line, /* u */
532 (GtkTextFunction)gtk_editable_paste_clipboard, /* v */
533 (GtkTextFunction)gtk_stext_delete_backward_word, /* w */
534 (GtkTextFunction)gtk_editable_cut_clipboard, /* x */
539 static const GtkTextFunction alt_keys[26] =
542 (GtkTextFunction)gtk_stext_move_backward_word, /* b */
544 (GtkTextFunction)gtk_stext_delete_forward_word, /* d */
546 (GtkTextFunction)gtk_stext_move_forward_word, /* f */
571 /**********************************************************************/
573 /**********************************************************************/
576 gtk_stext_get_type (void)
578 static GtkType text_type = 0;
582 static const GtkTypeInfo text_info =
586 sizeof (GtkSTextClass),
587 (GtkClassInitFunc) gtk_stext_class_init,
588 (GtkObjectInitFunc) gtk_stext_init,
589 /* reserved_1 */ NULL,
590 /* reserved_2 */ NULL,
591 (GtkClassInitFunc) NULL,
594 text_type = gtk_type_unique (GTK_TYPE_EDITABLE, &text_info);
601 gtk_stext_class_init (GtkSTextClass *class)
603 GtkObjectClass *object_class;
604 GtkWidgetClass *widget_class;
605 GtkEditableClass *editable_class;
607 object_class = (GtkObjectClass*) class;
608 widget_class = (GtkWidgetClass*) class;
609 editable_class = (GtkEditableClass*) class;
610 parent_class = gtk_type_class (GTK_TYPE_EDITABLE);
612 gtk_object_add_arg_type ("GtkSText::hadjustment",
614 GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
616 gtk_object_add_arg_type ("GtkSText::vadjustment",
618 GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
620 gtk_object_add_arg_type ("GtkSText::line_wrap",
624 gtk_object_add_arg_type ("GtkSText::word_wrap",
629 object_class->set_arg = gtk_stext_set_arg;
630 object_class->get_arg = gtk_stext_get_arg;
631 object_class->destroy = gtk_stext_destroy;
632 object_class->finalize = gtk_stext_finalize;
634 widget_class->realize = gtk_stext_realize;
635 widget_class->unrealize = gtk_stext_unrealize;
636 widget_class->style_set = gtk_stext_style_set;
637 widget_class->state_changed = gtk_stext_state_changed;
638 widget_class->draw_focus = gtk_stext_draw_focus;
639 widget_class->size_request = gtk_stext_size_request;
640 widget_class->size_allocate = gtk_stext_size_allocate;
641 widget_class->draw = gtk_stext_draw;
642 widget_class->expose_event = gtk_stext_expose;
643 widget_class->button_press_event = gtk_stext_button_press;
644 widget_class->button_release_event = gtk_stext_button_release;
645 widget_class->motion_notify_event = gtk_stext_motion_notify;
646 widget_class->key_press_event = gtk_stext_key_press;
647 widget_class->focus_in_event = gtk_stext_focus_in;
648 widget_class->focus_out_event = gtk_stext_focus_out;
650 widget_class->set_scroll_adjustments_signal =
651 gtk_signal_new ("set_scroll_adjustments",
654 GTK_SIGNAL_OFFSET (GtkSTextClass, set_scroll_adjustments),
655 gtk_marshal_NONE__POINTER_POINTER,
656 GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
658 editable_class->set_editable = gtk_stext_real_set_editable;
659 editable_class->insert_text = gtk_stext_insert_text;
660 editable_class->delete_text = gtk_stext_delete_text;
662 editable_class->move_cursor = gtk_stext_move_cursor;
663 editable_class->move_word = gtk_stext_move_word;
664 editable_class->move_page = gtk_stext_move_page;
665 editable_class->move_to_row = gtk_stext_move_to_row;
666 editable_class->move_to_column = gtk_stext_move_to_column;
668 editable_class->kill_char = gtk_stext_kill_char;
669 editable_class->kill_word = gtk_stext_kill_word;
670 editable_class->kill_line = gtk_stext_kill_line;
672 editable_class->update_text = gtk_stext_update_text;
673 editable_class->get_chars = gtk_stext_get_chars;
674 editable_class->set_selection = gtk_stext_set_selection;
675 editable_class->set_position = gtk_stext_set_position;
677 class->set_scroll_adjustments = gtk_stext_set_adjustments;
681 gtk_stext_set_arg (GtkObject *object,
687 text = GTK_STEXT (object);
691 case ARG_HADJUSTMENT:
692 gtk_stext_set_adjustments (text,
693 GTK_VALUE_POINTER (*arg),
696 case ARG_VADJUSTMENT:
697 gtk_stext_set_adjustments (text,
699 GTK_VALUE_POINTER (*arg));
702 gtk_stext_set_line_wrap (text, GTK_VALUE_BOOL (*arg));
705 gtk_stext_set_word_wrap (text, GTK_VALUE_BOOL (*arg));
713 gtk_stext_get_arg (GtkObject *object,
719 text = GTK_STEXT (object);
723 case ARG_HADJUSTMENT:
724 GTK_VALUE_POINTER (*arg) = text->hadj;
726 case ARG_VADJUSTMENT:
727 GTK_VALUE_POINTER (*arg) = text->vadj;
730 GTK_VALUE_BOOL (*arg) = text->line_wrap;
733 GTK_VALUE_BOOL (*arg) = text->word_wrap;
736 arg->type = GTK_TYPE_INVALID;
742 gtk_stext_init (GtkSText *text)
744 GTK_WIDGET_SET_FLAGS (text, GTK_CAN_FOCUS);
746 text->text_area = NULL;
751 text->line_wrap_bitmap = NULL;
752 text->line_arrow_bitmap = NULL;
754 text->use_wchar = FALSE;
755 text->text.ch = g_new (guchar, INITIAL_BUFFER_SIZE);
756 text->text_len = INITIAL_BUFFER_SIZE;
758 text->scratch_buffer.ch = NULL;
759 text->scratch_buffer_len = 0;
761 text->freeze_count = 0;
763 if (!params_mem_chunk)
764 params_mem_chunk = g_mem_chunk_new ("LineParams",
766 256 * sizeof (LineParams),
769 text->default_tab_width = 4;
770 text->tab_stops = NULL;
772 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
773 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
775 text->line_start_cache = NULL;
776 text->first_cut_pixels = 0;
778 text->line_wrap = TRUE;
779 text->word_wrap = FALSE;
784 text->current_font = NULL;
787 * timer for blinking cursor
789 text->cursor_visible = FALSE; /* don't know whether gtktext stores this somewhere */
790 text->cursor_timer_on = TRUE;
791 text->cursor_off_ms = 500;
792 text->cursor_on_ms = 500;
793 text->cursor_timer_id = 0;
794 text->cursor_idle_time_timer_id = 0;
795 text->wrap_rmargin = 0;
796 text->cursor_type = GTK_STEXT_CURSOR_LINE;
797 text->persist_column = 0;
799 init_properties (text);
801 GTK_EDITABLE (text)->editable = FALSE;
803 gtk_editable_set_position (GTK_EDITABLE (text), 0);
807 gtk_stext_new (GtkAdjustment *hadj,
813 g_return_val_if_fail (GTK_IS_ADJUSTMENT (hadj), NULL);
815 g_return_val_if_fail (GTK_IS_ADJUSTMENT (vadj), NULL);
817 text = gtk_widget_new (GTK_TYPE_STEXT,
823 * force widget name to be GtkText so it silently adapts
824 * the GtkText widget's style...
827 gtk_widget_set_name (text, "GtkText");
828 gtk_widget_ensure_style (text);
835 gtk_stext_set_word_wrap (GtkSText *text,
838 g_return_if_fail (text != NULL);
839 g_return_if_fail (GTK_IS_STEXT (text));
841 text->word_wrap = (word_wrap != FALSE);
843 if (GTK_WIDGET_REALIZED (text))
845 recompute_geometry (text);
846 gtk_widget_queue_draw (GTK_WIDGET (text));
851 gtk_stext_set_line_wrap (GtkSText *text,
854 g_return_if_fail (text != NULL);
855 g_return_if_fail (GTK_IS_STEXT (text));
857 text->line_wrap = (line_wrap != FALSE);
859 if (GTK_WIDGET_REALIZED (text))
861 recompute_geometry (text);
862 gtk_widget_queue_draw (GTK_WIDGET (text));
867 gtk_stext_set_editable (GtkSText *text,
868 gboolean is_editable)
870 g_return_if_fail (text != NULL);
871 g_return_if_fail (GTK_IS_STEXT (text));
873 gtk_editable_set_editable (GTK_EDITABLE (text), is_editable);
877 gtk_stext_real_set_editable (GtkEditable *editable,
878 gboolean is_editable)
882 g_return_if_fail (editable != NULL);
883 g_return_if_fail (GTK_IS_STEXT (editable));
885 text = GTK_STEXT (editable);
887 editable->editable = (is_editable != FALSE);
889 if (GTK_WIDGET_REALIZED (text))
891 recompute_geometry (text);
892 gtk_widget_queue_draw (GTK_WIDGET (text));
897 gtk_stext_set_adjustments (GtkSText *text,
901 g_return_if_fail (text != NULL);
902 g_return_if_fail (GTK_IS_STEXT (text));
904 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
906 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
908 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
910 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
912 if (text->hadj && (text->hadj != hadj))
914 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
915 gtk_object_unref (GTK_OBJECT (text->hadj));
918 if (text->vadj && (text->vadj != vadj))
920 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
921 gtk_object_unref (GTK_OBJECT (text->vadj));
924 if (text->hadj != hadj)
927 gtk_object_ref (GTK_OBJECT (text->hadj));
928 gtk_object_sink (GTK_OBJECT (text->hadj));
930 gtk_signal_connect (GTK_OBJECT (text->hadj), "changed",
931 (GtkSignalFunc) gtk_stext_adjustment,
933 gtk_signal_connect (GTK_OBJECT (text->hadj), "value_changed",
934 (GtkSignalFunc) gtk_stext_adjustment,
936 gtk_signal_connect (GTK_OBJECT (text->hadj), "disconnect",
937 (GtkSignalFunc) gtk_stext_disconnect,
939 gtk_stext_adjustment (hadj, text);
942 if (text->vadj != vadj)
945 gtk_object_ref (GTK_OBJECT (text->vadj));
946 gtk_object_sink (GTK_OBJECT (text->vadj));
948 gtk_signal_connect (GTK_OBJECT (text->vadj), "changed",
949 (GtkSignalFunc) gtk_stext_adjustment,
951 gtk_signal_connect (GTK_OBJECT (text->vadj), "value_changed",
952 (GtkSignalFunc) gtk_stext_adjustment,
954 gtk_signal_connect (GTK_OBJECT (text->vadj), "disconnect",
955 (GtkSignalFunc) gtk_stext_disconnect,
957 gtk_stext_adjustment (vadj, text);
962 gtk_stext_set_point (GtkSText *text,
965 g_return_if_fail (text != NULL);
966 g_return_if_fail (GTK_IS_STEXT (text));
967 g_return_if_fail (index <= TEXT_LENGTH (text));
969 text->point = find_mark (text, index);
973 gtk_stext_get_point (GtkSText *text)
975 g_return_val_if_fail (text != NULL, 0);
976 g_return_val_if_fail (GTK_IS_STEXT (text), 0);
978 return text->point.index;
982 gtk_stext_get_length (GtkSText *text)
984 g_return_val_if_fail (text != NULL, 0);
985 g_return_val_if_fail (GTK_IS_STEXT (text), 0);
987 return TEXT_LENGTH (text);
991 gtk_stext_freeze (GtkSText *text)
993 g_return_if_fail (text != NULL);
994 g_return_if_fail (GTK_IS_STEXT (text));
996 text->freeze_count++;
997 undraw_cursor (text, FALSE);
1001 gtk_stext_thaw (GtkSText *text)
1003 g_return_if_fail (text != NULL);
1004 g_return_if_fail (GTK_IS_STEXT (text));
1006 if (text->freeze_count)
1007 if (!(--text->freeze_count) && GTK_WIDGET_REALIZED (text))
1009 recompute_geometry (text);
1010 gtk_widget_queue_draw (GTK_WIDGET (text));
1012 draw_cursor (text, FALSE);
1017 gtk_stext_compact_buffer (GtkSText *text)
1019 g_return_if_fail (text != NULL);
1020 g_return_if_fail (GTK_IS_STEXT (text));
1021 move_gap (text, gtk_stext_get_length(text));
1025 gtk_stext_insert (GtkSText *text,
1032 GtkEditable *editable = GTK_EDITABLE (text);
1033 gboolean frozen = FALSE;
1035 gint new_line_count = 1;
1036 guint old_height = 0;
1041 g_return_if_fail (text != NULL);
1042 g_return_if_fail (GTK_IS_STEXT (text));
1044 g_return_if_fail (chars != NULL);
1047 if (!nchars || !chars)
1049 nchars = strlen (chars);
1053 if (!text->freeze_count && (length > FREEZE_LENGTH))
1055 gtk_stext_freeze (text);
1059 if (!text->freeze_count && (text->line_start_cache != NULL))
1061 find_line_containing_point (text, text->point.index, TRUE);
1062 old_height = total_line_height (text, text->current_line, 1);
1065 if ((TEXT_LENGTH (text) == 0) && (text->use_wchar == FALSE))
1068 widget = GTK_WIDGET (text);
1069 gtk_widget_ensure_style (widget);
1070 if ((widget->style) && (widget->style->font->type == GDK_FONT_FONTSET))
1072 text->use_wchar = TRUE;
1073 g_free (text->text.ch);
1074 text->text.wc = g_new (GdkWChar, INITIAL_BUFFER_SIZE);
1075 text->text_len = INITIAL_BUFFER_SIZE;
1076 if (text->scratch_buffer.ch)
1077 g_free (text->scratch_buffer.ch);
1078 text->scratch_buffer.wc = NULL;
1079 text->scratch_buffer_len = 0;
1083 move_gap (text, text->point.index);
1084 make_forward_space (text, length);
1086 if (text->use_wchar)
1088 char *chars_nt = (char *)chars;
1091 chars_nt = g_new (char, length+1);
1092 memcpy (chars_nt, chars, length);
1093 chars_nt[length] = 0;
1095 numwcs = gdk_mbstowcs (text->text.wc + text->gap_position, chars_nt,
1097 if (chars_nt != chars)
1105 memcpy(text->text.ch + text->gap_position, chars, length);
1108 if (!text->freeze_count && (text->line_start_cache != NULL))
1110 if (text->use_wchar)
1112 for (i=0; i<numwcs; i++)
1113 if (text->text.wc[text->gap_position + i] == '\n')
1118 for (i=0; i<numwcs; i++)
1119 if (text->text.ch[text->gap_position + i] == '\n')
1126 insert_text_property (text, font, fore, back, numwcs);
1128 text->gap_size -= numwcs;
1129 text->gap_position += numwcs;
1131 if (text->point.index < text->first_line_start_index)
1132 text->first_line_start_index += numwcs;
1133 if (text->point.index < editable->selection_start_pos)
1134 editable->selection_start_pos += numwcs;
1135 if (text->point.index < editable->selection_end_pos)
1136 editable->selection_end_pos += numwcs;
1137 /* We'll reset the cursor later anyways if we aren't frozen */
1138 if (text->point.index < text->cursor_mark.index)
1139 text->cursor_mark.index += numwcs;
1141 advance_mark_n (&text->point, numwcs);
1143 if (!text->freeze_count && (text->line_start_cache != NULL))
1144 insert_expose (text, old_height, numwcs, new_line_count);
1148 gtk_stext_thaw (text);
1152 gtk_stext_backward_delete (GtkSText *text,
1155 g_return_val_if_fail (text != NULL, 0);
1156 g_return_val_if_fail (GTK_IS_STEXT (text), 0);
1158 if (nchars > text->point.index || nchars <= 0)
1161 gtk_stext_set_point (text, text->point.index - nchars);
1163 return gtk_stext_forward_delete (text, nchars);
1167 gtk_stext_forward_delete (GtkSText *text,
1170 guint old_lines, old_height;
1171 GtkEditable *editable = GTK_EDITABLE (text);
1172 gboolean frozen = FALSE;
1174 g_return_val_if_fail (text != NULL, 0);
1175 g_return_val_if_fail (GTK_IS_STEXT (text), 0);
1177 if (text->point.index + nchars > TEXT_LENGTH (text) || nchars <= 0)
1180 if (!text->freeze_count && nchars > FREEZE_LENGTH)
1182 gtk_stext_freeze (text);
1186 if (!text->freeze_count && text->line_start_cache != NULL)
1188 /* We need to undraw the cursor here, since we may later
1189 * delete the cursor's property
1191 undraw_cursor (text, FALSE);
1192 find_line_containing_point (text, text->point.index, TRUE);
1193 compute_lines_pixels (text, nchars, &old_lines, &old_height);
1196 /* FIXME, or resizing after deleting will be odd */
1197 if (text->point.index < text->first_line_start_index)
1199 if (text->point.index + nchars >= text->first_line_start_index)
1201 text->first_line_start_index = text->point.index;
1202 while ((text->first_line_start_index > 0) &&
1203 (GTK_STEXT_INDEX (text, text->first_line_start_index - 1)
1205 text->first_line_start_index -= 1;
1209 text->first_line_start_index -= nchars;
1212 if (text->point.index < editable->selection_start_pos)
1213 editable->selection_start_pos -=
1214 MIN(nchars, editable->selection_start_pos - text->point.index);
1215 if (text->point.index < editable->selection_end_pos)
1216 editable->selection_end_pos -=
1217 MIN(nchars, editable->selection_end_pos - text->point.index);
1218 /* We'll reset the cursor later anyways if we aren't frozen */
1219 if (text->point.index < text->cursor_mark.index)
1220 move_mark_n (&text->cursor_mark,
1221 -MIN(nchars, text->cursor_mark.index - text->point.index));
1223 move_gap (text, text->point.index);
1225 text->gap_size += nchars;
1227 delete_text_property (text, nchars);
1229 if (!text->freeze_count && (text->line_start_cache != NULL))
1231 delete_expose (text, nchars, old_lines, old_height);
1232 draw_cursor (text, FALSE);
1236 gtk_stext_thaw (text);
1242 gtk_stext_set_position (GtkEditable *editable,
1245 GtkSText *text = (GtkSText *) editable;
1247 undraw_cursor (text, FALSE);
1248 text->cursor_mark = find_mark (text, position);
1249 find_cursor (text, TRUE);
1250 draw_cursor (text, FALSE);
1251 gtk_editable_select_region (editable, 0, 0);
1254 /* SYLPHEED - set_position used. Need to find out whether there's
1255 * a better way to handle this */
1256 static void gtk_stext_set_position_X (GtkEditable *editable,
1259 GtkSText *text = (GtkSText *) editable;
1261 undraw_cursor (text, FALSE);
1262 text->cursor_mark = find_mark (text, position);
1263 find_cursor (text, TRUE);
1264 draw_cursor (text, FALSE);
1268 gtk_stext_get_chars (GtkEditable *editable,
1276 g_return_val_if_fail (editable != NULL, NULL);
1277 g_return_val_if_fail (GTK_IS_STEXT (editable), NULL);
1278 text = GTK_STEXT (editable);
1281 end_pos = TEXT_LENGTH (text);
1283 if ((start_pos < 0) ||
1284 (end_pos > TEXT_LENGTH (text)) ||
1285 (end_pos < start_pos))
1288 move_gap (text, TEXT_LENGTH (text));
1289 make_forward_space (text, 1);
1291 if (text->use_wchar)
1294 ch = text->text.wc[end_pos];
1295 text->text.wc[end_pos] = 0;
1296 retval = gdk_wcstombs (text->text.wc + start_pos);
1297 text->text.wc[end_pos] = ch;
1302 ch = text->text.ch[end_pos];
1303 text->text.ch[end_pos] = 0;
1304 retval = g_strdup (text->text.ch + start_pos);
1305 text->text.ch[end_pos] = ch;
1313 gtk_stext_destroy (GtkObject *object)
1317 g_return_if_fail (object != NULL);
1318 g_return_if_fail (GTK_IS_STEXT (object));
1320 text = (GtkSText*) object;
1322 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
1323 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
1327 gtk_timeout_remove (text->timer);
1334 gtk_stext_disable_blink (text);
1336 GTK_OBJECT_CLASS(parent_class)->destroy (object);
1340 gtk_stext_finalize (GtkObject *object)
1345 g_return_if_fail (object != NULL);
1346 g_return_if_fail (GTK_IS_STEXT (object));
1348 text = (GtkSText *)object;
1350 gtk_object_unref (GTK_OBJECT (text->hadj));
1351 gtk_object_unref (GTK_OBJECT (text->vadj));
1353 /* Clean up the internal structures */
1354 if (text->use_wchar)
1355 g_free (text->text.wc);
1357 g_free (text->text.ch);
1359 tmp_list = text->text_properties;
1362 destroy_text_property (tmp_list->data);
1363 tmp_list = tmp_list->next;
1366 if (text->current_font)
1367 text_font_unref (text->current_font);
1369 g_list_free (text->text_properties);
1371 if (text->use_wchar)
1373 if (text->scratch_buffer.wc)
1374 g_free (text->scratch_buffer.wc);
1378 if (text->scratch_buffer.ch)
1379 g_free (text->scratch_buffer.ch);
1382 g_list_free (text->tab_stops);
1384 GTK_OBJECT_CLASS(parent_class)->finalize (object);
1388 gtk_stext_realize (GtkWidget *widget)
1391 GtkEditable *editable;
1392 GdkWindowAttr attributes;
1393 gint attributes_mask;
1395 g_return_if_fail (widget != NULL);
1396 g_return_if_fail (GTK_IS_STEXT (widget));
1398 text = GTK_STEXT (widget);
1399 editable = GTK_EDITABLE (widget);
1400 GTK_WIDGET_SET_FLAGS (text, GTK_REALIZED);
1402 attributes.window_type = GDK_WINDOW_CHILD;
1403 attributes.x = widget->allocation.x;
1404 attributes.y = widget->allocation.y;
1405 attributes.width = widget->allocation.width;
1406 attributes.height = widget->allocation.height;
1407 attributes.wclass = GDK_INPUT_OUTPUT;
1408 attributes.visual = gtk_widget_get_visual (widget);
1409 attributes.colormap = gtk_widget_get_colormap (widget);
1410 attributes.event_mask = gtk_widget_get_events (widget);
1411 attributes.event_mask |= (GDK_EXPOSURE_MASK |
1412 GDK_BUTTON_PRESS_MASK |
1413 GDK_BUTTON_RELEASE_MASK |
1414 GDK_BUTTON_MOTION_MASK |
1415 GDK_ENTER_NOTIFY_MASK |
1416 GDK_LEAVE_NOTIFY_MASK |
1417 GDK_KEY_PRESS_MASK);
1418 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1420 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
1421 gdk_window_set_user_data (widget->window, text);
1423 attributes.x = (widget->style->klass->xthickness + TEXT_BORDER_ROOM);
1424 attributes.y = (widget->style->klass->ythickness + TEXT_BORDER_ROOM);
1425 attributes.width = MAX (1, (gint)widget->allocation.width - (gint)attributes.x * 2);
1426 attributes.height = MAX (1, (gint)widget->allocation.height - (gint)attributes.y * 2);
1428 attributes.cursor = gdk_cursor_new (GDK_XTERM);
1429 attributes_mask |= GDK_WA_CURSOR;
1431 text->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
1432 gdk_window_set_user_data (text->text_area, text);
1434 gdk_cursor_destroy (attributes.cursor); /* The X server will keep it around as long as necessary */
1436 widget->style = gtk_style_attach (widget->style, widget->window);
1438 /* Can't call gtk_style_set_background here because it's handled specially */
1439 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1440 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1442 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1443 text->bg_gc = create_bg_gc (text);
1445 text->line_wrap_bitmap = gdk_bitmap_create_from_data (text->text_area,
1446 (gchar*) line_wrap_bits,
1450 text->line_arrow_bitmap = gdk_bitmap_create_from_data (text->text_area,
1451 (gchar*) line_arrow_bits,
1455 text->gc = gdk_gc_new (text->text_area);
1456 gdk_gc_set_exposures (text->gc, TRUE);
1457 gdk_gc_set_foreground (text->gc, &widget->style->text[GTK_STATE_NORMAL]);
1459 #ifdef USE_GTKGDK_XIM
1460 if (gdk_im_ready () && (editable->ic_attr = gdk_ic_attr_new ()) != NULL)
1463 GdkColormap *colormap;
1465 GdkICAttr *attr = editable->ic_attr;
1466 GdkICAttributesType attrmask = GDK_IC_ALL_REQ;
1468 GdkIMStyle supported_style = GDK_IM_PREEDIT_NONE |
1469 GDK_IM_PREEDIT_NOTHING |
1470 GDK_IM_PREEDIT_POSITION |
1471 GDK_IM_STATUS_NONE |
1472 GDK_IM_STATUS_NOTHING;
1474 if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
1475 supported_style &= ~GDK_IM_PREEDIT_POSITION;
1477 attr->style = style = gdk_im_decide_style (supported_style);
1478 attr->client_window = text->text_area;
1480 if ((colormap = gtk_widget_get_colormap (widget)) !=
1481 gtk_widget_get_default_colormap ())
1483 attrmask |= GDK_IC_PREEDIT_COLORMAP;
1484 attr->preedit_colormap = colormap;
1487 switch (style & GDK_IM_PREEDIT_MASK)
1489 case GDK_IM_PREEDIT_POSITION:
1490 if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
1492 g_warning ("over-the-spot style requires fontset");
1496 attrmask |= GDK_IC_PREEDIT_POSITION_REQ;
1497 gdk_window_get_size (text->text_area, &width, &height);
1498 attr->spot_location.x = 0;
1499 attr->spot_location.y = height;
1500 attr->preedit_area.x = 0;
1501 attr->preedit_area.y = 0;
1502 attr->preedit_area.width = width;
1503 attr->preedit_area.height = height;
1504 attr->preedit_fontset = widget->style->font;
1508 editable->ic = gdk_ic_new (attr, attrmask);
1510 if (editable->ic == NULL)
1511 g_warning ("Can't create input context.");
1514 mask = gdk_window_get_events (text->text_area);
1515 mask |= gdk_ic_get_events (editable->ic);
1516 gdk_window_set_events (text->text_area, mask);
1518 if (GTK_WIDGET_HAS_FOCUS (widget))
1519 gdk_im_begin (editable->ic, text->text_area);
1524 realize_properties (text);
1525 gdk_window_show (text->text_area);
1526 init_properties (text);
1528 if (editable->selection_start_pos != editable->selection_end_pos)
1529 gtk_editable_claim_selection (editable, TRUE, GDK_CURRENT_TIME);
1531 recompute_geometry (text);
1535 gtk_stext_style_set (GtkWidget *widget,
1536 GtkStyle *previous_style)
1538 GtkSText *text = GTK_STEXT (widget);
1540 if (GTK_WIDGET_REALIZED (widget))
1542 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1543 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1547 gdk_gc_destroy (text->bg_gc);
1551 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1552 text->bg_gc = create_bg_gc (text);
1554 recompute_geometry (text);
1557 if (text->current_font)
1558 text_font_unref (text->current_font);
1559 text->current_font = get_text_font (widget->style->font);
1563 gtk_stext_state_changed (GtkWidget *widget,
1564 GtkStateType previous_state)
1566 GtkSText *text = GTK_STEXT (widget);
1568 if (GTK_WIDGET_REALIZED (widget))
1570 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1571 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1576 gtk_stext_unrealize (GtkWidget *widget)
1580 g_return_if_fail (widget != NULL);
1581 g_return_if_fail (GTK_IS_STEXT (widget));
1583 text = GTK_STEXT (widget);
1585 #ifdef USE_GTKGDK_XIM
1586 if (GTK_EDITABLE (widget)->ic)
1588 gdk_ic_destroy (GTK_EDITABLE (widget)->ic);
1589 GTK_EDITABLE (widget)->ic = NULL;
1591 if (GTK_EDITABLE (widget)->ic_attr)
1593 gdk_ic_attr_destroy (GTK_EDITABLE (widget)->ic_attr);
1594 GTK_EDITABLE (widget)->ic_attr = NULL;
1598 gdk_window_set_user_data (text->text_area, NULL);
1599 gdk_window_destroy (text->text_area);
1600 text->text_area = NULL;
1602 gdk_gc_destroy (text->gc);
1607 gdk_gc_destroy (text->bg_gc);
1611 gdk_pixmap_unref (text->line_wrap_bitmap);
1612 gdk_pixmap_unref (text->line_arrow_bitmap);
1614 unrealize_properties (text);
1618 if (GTK_WIDGET_CLASS (parent_class)->unrealize)
1619 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
1623 clear_focus_area (GtkSText *text, gint area_x, gint area_y, gint area_width, gint area_height)
1625 GtkWidget *widget = GTK_WIDGET (text);
1628 gint ythick = TEXT_BORDER_ROOM + widget->style->klass->ythickness;
1629 gint xthick = TEXT_BORDER_ROOM + widget->style->klass->xthickness;
1633 if (area_width == 0 || area_height == 0)
1636 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1638 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
1640 gdk_gc_set_ts_origin (text->bg_gc,
1641 (- (gint)text->first_onscreen_hor_pixel + xthick) % width,
1642 (- (gint)text->first_onscreen_ver_pixel + ythick) % height);
1647 gc = widget->style->bg_gc[widget->state];
1650 gdk_draw_rectangle (GTK_WIDGET (text)->window, gc, TRUE,
1651 area_x, area_y, area_width, area_height);
1655 gtk_stext_draw_focus (GtkWidget *widget)
1661 g_return_if_fail (widget != NULL);
1662 g_return_if_fail (GTK_IS_STEXT (widget));
1664 text = GTK_STEXT (widget);
1666 if (GTK_WIDGET_DRAWABLE (widget))
1668 gint ythick = widget->style->klass->ythickness;
1669 gint xthick = widget->style->klass->xthickness;
1670 gint xextra = TEXT_BORDER_ROOM;
1671 gint yextra = TEXT_BORDER_ROOM;
1673 TDEBUG (("in gtk_stext_draw_focus\n"));
1677 width = widget->allocation.width;
1678 height = widget->allocation.height;
1680 if (GTK_WIDGET_HAS_FOCUS (widget))
1689 gtk_paint_focus (widget->style, widget->window,
1690 NULL, widget, "text",
1692 widget->allocation.width - 1,
1693 widget->allocation.height - 1);
1696 gtk_paint_shadow (widget->style, widget->window,
1697 GTK_STATE_NORMAL, GTK_SHADOW_IN,
1698 NULL, widget, "text",
1699 x, y, width, height);
1703 width -= 2 * xthick;
1704 height -= 2 * ythick;
1707 clear_focus_area (text, x, y, width, yextra);
1709 clear_focus_area (text, x, y + yextra,
1710 xextra, y + height - 2 * yextra);
1712 clear_focus_area (text, x + width - xextra, y + yextra,
1713 xextra, height - 2 * ythick);
1715 clear_focus_area (text, x, x + height - yextra, width, yextra);
1719 TDEBUG (("in gtk_stext_draw_focus (undrawable !!!)\n"));
1724 gtk_stext_size_request (GtkWidget *widget,
1725 GtkRequisition *requisition)
1732 g_return_if_fail (widget != NULL);
1733 g_return_if_fail (GTK_IS_STEXT (widget));
1734 g_return_if_fail (requisition != NULL);
1736 xthickness = widget->style->klass->xthickness + TEXT_BORDER_ROOM;
1737 ythickness = widget->style->klass->ythickness + TEXT_BORDER_ROOM;
1739 char_height = MIN_TEXT_HEIGHT_LINES * (widget->style->font->ascent +
1740 widget->style->font->descent);
1742 char_width = MIN_TEXT_WIDTH_LINES * (gdk_text_width (widget->style->font,
1743 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
1747 requisition->width = char_width + xthickness * 2;
1748 requisition->height = char_height + ythickness * 2;
1752 gtk_stext_size_allocate (GtkWidget *widget,
1753 GtkAllocation *allocation)
1756 GtkEditable *editable;
1758 g_return_if_fail (widget != NULL);
1759 g_return_if_fail (GTK_IS_STEXT (widget));
1760 g_return_if_fail (allocation != NULL);
1762 text = GTK_STEXT (widget);
1763 editable = GTK_EDITABLE (widget);
1765 widget->allocation = *allocation;
1766 if (GTK_WIDGET_REALIZED (widget))
1768 gdk_window_move_resize (widget->window,
1769 allocation->x, allocation->y,
1770 allocation->width, allocation->height);
1772 gdk_window_move_resize (text->text_area,
1773 widget->style->klass->xthickness + TEXT_BORDER_ROOM,
1774 widget->style->klass->ythickness + TEXT_BORDER_ROOM,
1775 MAX (1, (gint)widget->allocation.width - (gint)(widget->style->klass->xthickness +
1776 (gint)TEXT_BORDER_ROOM) * 2),
1777 MAX (1, (gint)widget->allocation.height - (gint)(widget->style->klass->ythickness +
1778 (gint)TEXT_BORDER_ROOM) * 2));
1780 #ifdef USE_GTKGDK_XIM
1781 if (editable->ic && (gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION))
1785 gdk_window_get_size (text->text_area, &width, &height);
1786 editable->ic_attr->preedit_area.width = width;
1787 editable->ic_attr->preedit_area.height = height;
1789 gdk_ic_set_attr (editable->ic,
1790 editable->ic_attr, GDK_IC_PREEDIT_AREA);
1794 recompute_geometry (text);
1799 gtk_stext_draw (GtkWidget *widget,
1802 g_return_if_fail (widget != NULL);
1803 g_return_if_fail (GTK_IS_STEXT (widget));
1804 g_return_if_fail (area != NULL);
1806 if (GTK_WIDGET_DRAWABLE (widget))
1808 expose_text (GTK_STEXT (widget), area, TRUE);
1809 gtk_widget_draw_focus (widget);
1814 gtk_stext_expose (GtkWidget *widget,
1815 GdkEventExpose *event)
1817 g_return_val_if_fail (widget != NULL, FALSE);
1818 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
1819 g_return_val_if_fail (event != NULL, FALSE);
1821 if (event->window == GTK_STEXT (widget)->text_area)
1823 TDEBUG (("in gtk_stext_expose (expose)\n"));
1824 expose_text (GTK_STEXT (widget), &event->area, TRUE);
1826 else if (event->count == 0)
1828 TDEBUG (("in gtk_stext_expose (focus)\n"));
1829 gtk_widget_draw_focus (widget);
1836 gtk_stext_scroll_timeout (gpointer data)
1839 GdkEventMotion event;
1841 GdkModifierType mask;
1843 GDK_THREADS_ENTER ();
1845 text = GTK_STEXT (data);
1848 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1850 if (mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK))
1857 gtk_stext_motion_notify (GTK_WIDGET (text), &event);
1860 GDK_THREADS_LEAVE ();
1866 gtk_stext_button_press (GtkWidget *widget,
1867 GdkEventButton *event)
1870 GtkEditable *editable;
1871 static GdkAtom ctext_atom = GDK_NONE;
1873 g_return_val_if_fail (widget != NULL, FALSE);
1874 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
1875 g_return_val_if_fail (event != NULL, FALSE);
1877 if (ctext_atom == GDK_NONE)
1878 ctext_atom = gdk_atom_intern ("COMPOUND_TEXT", FALSE);
1880 text = GTK_STEXT (widget);
1881 editable = GTK_EDITABLE (widget);
1883 if (text->button && (event->button != text->button))
1886 text->button = event->button;
1888 if (!GTK_WIDGET_HAS_FOCUS (widget))
1889 gtk_widget_grab_focus (widget);
1891 if (event->button == 1)
1893 switch (event->type)
1895 case GDK_BUTTON_PRESS:
1896 gtk_grab_add (widget);
1898 undraw_cursor (text, FALSE);
1899 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1900 draw_cursor (text, FALSE);
1902 /* Set it now, so we display things right. We'll unset it
1903 * later if things don't work out */
1904 editable->has_selection = TRUE;
1905 gtk_stext_set_selection (GTK_EDITABLE(text),
1906 text->cursor_mark.index,
1907 text->cursor_mark.index);
1911 case GDK_2BUTTON_PRESS:
1912 gtk_stext_select_word (text, event->time);
1915 case GDK_3BUTTON_PRESS:
1916 gtk_stext_select_line (text, event->time);
1923 else if (event->type == GDK_BUTTON_PRESS)
1925 if ((event->button == 2) && editable->editable)
1927 if (editable->selection_start_pos == editable->selection_end_pos ||
1928 editable->has_selection)
1930 undraw_cursor (text, FALSE);
1931 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1932 draw_cursor (text, FALSE);
1936 gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
1937 ctext_atom, event->time);
1941 gtk_grab_add (widget);
1943 undraw_cursor (text, FALSE);
1944 find_mouse_cursor (text, event->x, event->y);
1945 draw_cursor (text, FALSE);
1947 gtk_stext_set_selection (GTK_EDITABLE(text),
1948 text->cursor_mark.index,
1949 text->cursor_mark.index);
1951 editable->has_selection = FALSE;
1952 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
1953 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
1961 gtk_stext_button_release (GtkWidget *widget,
1962 GdkEventButton *event)
1965 GtkEditable *editable;
1966 g_return_val_if_fail (widget != NULL, FALSE);
1967 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
1968 g_return_val_if_fail (event != NULL, FALSE);
1970 text = GTK_STEXT (widget);
1972 gtk_grab_remove (widget);
1974 if (text->button != event->button)
1981 gtk_timeout_remove (text->timer);
1985 if (event->button == 1)
1987 text = GTK_STEXT (widget);
1988 editable = GTK_EDITABLE (widget);
1990 gtk_grab_remove (widget);
1992 editable->has_selection = FALSE;
1993 if (editable->selection_start_pos != editable->selection_end_pos)
1995 if (gtk_selection_owner_set (widget,
1996 GDK_SELECTION_PRIMARY,
1998 editable->has_selection = TRUE;
2000 gtk_stext_update_text (editable, editable->selection_start_pos,
2001 editable->selection_end_pos);
2005 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
2006 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
2009 else if (event->button == 3)
2011 gtk_grab_remove (widget);
2014 undraw_cursor (text, FALSE);
2015 find_cursor (text, TRUE);
2016 draw_cursor (text, FALSE);
2022 gtk_stext_motion_notify (GtkWidget *widget,
2023 GdkEventMotion *event)
2028 GdkModifierType mask;
2030 g_return_val_if_fail (widget != NULL, FALSE);
2031 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
2032 g_return_val_if_fail (event != NULL, FALSE);
2034 text = GTK_STEXT (widget);
2038 mask = event->state;
2039 if (event->is_hint || (text->text_area != event->window))
2041 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
2044 if ((text->button == 0) ||
2045 !(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)))
2048 gdk_window_get_size (text->text_area, NULL, &height);
2050 if ((y < 0) || (y > height))
2052 if (text->timer == 0)
2054 text->timer = gtk_timeout_add (SCROLL_TIME,
2055 gtk_stext_scroll_timeout,
2059 scroll_int (text, y/2);
2061 scroll_int (text, (y - height)/2);
2067 undraw_cursor (GTK_STEXT (widget), FALSE);
2068 find_mouse_cursor (GTK_STEXT (widget), x, y);
2069 draw_cursor (GTK_STEXT (widget), FALSE);
2071 gtk_stext_set_selection (GTK_EDITABLE(text),
2072 GTK_EDITABLE(text)->selection_start_pos,
2073 text->cursor_mark.index);
2079 gtk_stext_insert_text (GtkEditable *editable,
2080 const gchar *new_text,
2081 gint new_text_length,
2084 GtkSText *text = GTK_STEXT (editable);
2086 GdkColor *fore, *back;
2088 TextProperty *property;
2090 gtk_stext_set_point (text, *position);
2092 property = MARK_CURRENT_PROPERTY (&text->point);
2093 font = property->flags & PROPERTY_FONT ? property->font->gdk_font : NULL;
2094 fore = property->flags & PROPERTY_FOREGROUND ? &property->fore_color : NULL;
2095 back = property->flags & PROPERTY_BACKGROUND ? &property->back_color : NULL;
2097 gtk_stext_insert (text, font, fore, back, new_text, new_text_length);
2099 *position = text->point.index;
2103 gtk_stext_delete_text (GtkEditable *editable,
2109 g_return_if_fail (start_pos >= 0);
2111 text = GTK_STEXT (editable);
2113 gtk_stext_set_point (text, start_pos);
2115 end_pos = TEXT_LENGTH (text);
2117 if (end_pos > start_pos)
2118 gtk_stext_forward_delete (text, end_pos - start_pos);
2122 gtk_stext_key_press (GtkWidget *widget,
2126 GtkEditable *editable;
2131 g_return_val_if_fail (widget != NULL, FALSE);
2132 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
2133 g_return_val_if_fail (event != NULL, FALSE);
2137 text = GTK_STEXT (widget);
2138 editable = GTK_EDITABLE (widget);
2140 key = event->keyval;
2143 if ((GTK_EDITABLE(text)->editable == FALSE))
2145 switch (event->keyval)
2148 if (event->state & GDK_CONTROL_MASK)
2149 scroll_int (text, -text->vadj->value);
2154 if (event->state & GDK_CONTROL_MASK)
2155 scroll_int (text, +text->vadj->upper);
2159 case GDK_Page_Up: scroll_int (text, -text->vadj->page_increment); break;
2160 case GDK_Page_Down: scroll_int (text, +text->vadj->page_increment); break;
2161 case GDK_Up: scroll_int (text, -KEY_SCROLL_PIXELS); break;
2162 case GDK_Down: scroll_int (text, +KEY_SCROLL_PIXELS); break;
2164 if (event->state & GDK_CONTROL_MASK)
2165 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
2176 gint extend_selection;
2178 guint initial_pos = editable->current_pos;
2180 text->point = find_mark (text, text->cursor_mark.index);
2182 extend_selection = (event->state & GDK_SHIFT_MASK) &&
2183 (event->keyval != GDK_Return);
2184 extend_start = FALSE;
2186 if (extend_selection)
2188 editable->has_selection = TRUE;
2190 if (editable->selection_start_pos == editable->selection_end_pos)
2192 editable->selection_start_pos = text->point.index;
2193 editable->selection_end_pos = text->point.index;
2196 extend_start = (text->point.index == editable->selection_start_pos);
2197 /* SYLPHEED: cursor */
2198 gtk_stext_disable_blink (text);
2202 gtk_stext_enable_blink (text);
2208 if (event->keyval != GDK_Up && event->keyval != GDK_Down) {
2209 reset_persist_col_pos(text);
2212 switch (event->keyval)
2215 if (event->state & GDK_CONTROL_MASK) {
2216 if (text->wrap_rmargin == 0) {
2217 /* SYLPHEED: old behaviour */
2218 move_cursor_buffer_ver (text, -1);
2221 /* SYLPHEED: contrived, but "trusty" */
2222 move_cursor_buffer_ver(text, -1);
2223 move_cursor_to_display_row_start(text);
2227 if (text->wrap_rmargin > 0) {
2228 /* SYLPHEED: line start */
2229 move_cursor_to_display_row_start(text);
2232 gtk_stext_move_beginning_of_line (text);
2237 if (event->state & GDK_CONTROL_MASK) {
2238 /* SYLPHEED: a little bit contrived... */
2239 if (text->wrap_rmargin == 0) {
2241 move_cursor_buffer_ver (text, +1);
2244 move_cursor_buffer_ver(text, +1);
2245 move_cursor_to_display_row_end(text);
2249 if (text->wrap_rmargin > 0) {
2250 /* SYLPHEED: line end */
2251 move_cursor_to_display_row_end(text);
2254 gtk_stext_move_end_of_line(text);
2259 move_cursor_page_ver (text, -1);
2261 case GDK_Page_Down: move_cursor_page_ver (text, +1); break;
2262 /* CUA has Ctrl-Up/Ctrl-Down as paragraph up down */
2264 if (text->wrap_rmargin > 0) {
2267 move_cursor_to_display_row_up(text);
2270 move_cursor_ver (text, -1);
2274 move_cursor_to_display_row_down(text);
2275 /* move_cursor_ver (text, +1); */
2278 if (event->state & GDK_CONTROL_MASK)
2279 gtk_stext_move_backward_word (text);
2281 move_cursor_hor (text, -1);
2284 if (event->state & GDK_CONTROL_MASK)
2285 gtk_stext_move_forward_word (text);
2287 move_cursor_hor (text, +1);
2291 if (event->state & GDK_CONTROL_MASK)
2292 gtk_stext_delete_backward_word (text);
2294 gtk_stext_delete_backward_character (text);
2297 gtk_stext_delete_line (text);
2300 if (event->state & GDK_SHIFT_MASK)
2302 extend_selection = FALSE;
2303 gtk_editable_paste_clipboard (editable);
2305 else if (event->state & GDK_CONTROL_MASK)
2307 gtk_editable_copy_clipboard (editable);
2311 /* gtk_toggle_insert(text) -- IMPLEMENT */
2315 if (event->state & GDK_CONTROL_MASK)
2316 gtk_stext_delete_forward_word (text);
2317 else if (event->state & GDK_SHIFT_MASK)
2319 extend_selection = FALSE;
2320 gtk_editable_cut_clipboard (editable);
2323 gtk_stext_delete_forward_character (text);
2326 position = text->point.index;
2327 gtk_editable_insert_text (editable, "\t", 1, &position);
2330 if (event->state & GDK_CONTROL_MASK)
2331 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
2334 position = text->point.index;
2335 gtk_editable_insert_text (editable, "\n", 1, &position);
2339 /* Don't insert literally */
2347 if (event->state & GDK_CONTROL_MASK)
2349 if ((key >= 'A') && (key <= 'Z'))
2352 if ((key >= 'a') && (key <= 'z') && control_keys[(int) (key - 'a')])
2354 (* control_keys[(int) (key - 'a')]) (editable, event->time);
2360 else if (event->state & GDK_MOD1_MASK)
2362 if ((key >= 'A') && (key <= 'Z'))
2365 if ((key >= 'a') && (key <= 'z') && alt_keys[(int) (key - 'a')])
2367 (* alt_keys[(int) (key - 'a')]) (editable, event->time);
2373 else if (event->length > 0)
2375 if (!(event->state & GDK_CONTROL_MASK) &&
2376 !(event->state & GDK_MOD1_MASK) &&
2377 (event->length > 0))
2379 extend_selection = FALSE;
2381 gtk_editable_delete_selection (editable);
2382 position = text->point.index;
2383 gtk_editable_insert_text (editable, event->string, event->length, &position);
2391 if (return_val && (editable->current_pos != initial_pos))
2393 if (extend_selection)
2395 if (editable->current_pos < editable->selection_start_pos)
2396 gtk_stext_set_selection (editable, editable->current_pos,
2397 editable->selection_end_pos);
2398 else if (editable->current_pos > editable->selection_end_pos)
2399 gtk_stext_set_selection (editable, editable->selection_start_pos,
2400 editable->current_pos);
2404 gtk_stext_set_selection (editable, editable->current_pos,
2405 editable->selection_end_pos);
2407 gtk_stext_set_selection (editable, editable->selection_start_pos,
2408 editable->current_pos);
2412 gtk_stext_set_selection (editable, 0, 0);
2414 gtk_editable_claim_selection (editable,
2415 editable->selection_start_pos != editable->selection_end_pos,
2424 gtk_stext_focus_in (GtkWidget *widget,
2425 GdkEventFocus *event)
2427 g_return_val_if_fail (widget != NULL, FALSE);
2428 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
2429 g_return_val_if_fail (event != NULL, FALSE);
2431 TDEBUG (("in gtk_stext_focus_in\n"));
2433 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
2434 gtk_widget_draw_focus (widget);
2436 #ifdef USE_GTKGDK_XIM
2437 if (GTK_EDITABLE(widget)->ic)
2438 gdk_im_begin (GTK_EDITABLE(widget)->ic, GTK_STEXT(widget)->text_area);
2441 draw_cursor (GTK_STEXT(widget), TRUE);
2442 /* SYLPHEED: cursor */
2443 GTK_STEXT(widget)->cursor_visible = TRUE;
2444 gtk_stext_enable_blink (GTK_STEXT(widget));
2450 gtk_stext_focus_out (GtkWidget *widget,
2451 GdkEventFocus *event)
2453 g_return_val_if_fail (widget != NULL, FALSE);
2454 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
2455 g_return_val_if_fail (event != NULL, FALSE);
2457 TDEBUG (("in gtk_stext_focus_out\n"));
2459 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
2460 gtk_widget_draw_focus (widget);
2463 * should disable blink before undrawing the cursor - disabling blink
2464 * redraws the cursor.
2466 gtk_stext_disable_blink (GTK_STEXT(widget));
2467 undraw_cursor (GTK_STEXT(widget), TRUE);
2468 GTK_STEXT(widget)->cursor_visible = FALSE;
2470 #ifdef USE_GTKGDK_XIM
2478 gtk_stext_adjustment (GtkAdjustment *adjustment,
2483 g_return_if_fail (adjustment != NULL);
2484 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2485 g_return_if_fail (text != NULL);
2486 g_return_if_fail (GTK_IS_STEXT (text));
2488 /* Clamp the value here, because we'll get really confused
2489 * if someone tries to move the adjusment outside of the
2492 old_val = adjustment->value;
2494 adjustment->value = MIN (adjustment->value, adjustment->upper - adjustment->page_size);
2495 adjustment->value = MAX (adjustment->value, 0.0);
2497 if (adjustment->value != old_val)
2499 gtk_signal_handler_block_by_func (GTK_OBJECT (adjustment),
2500 GTK_SIGNAL_FUNC (gtk_stext_adjustment),
2502 gtk_adjustment_changed (adjustment);
2503 gtk_signal_handler_unblock_by_func (GTK_OBJECT (adjustment),
2504 GTK_SIGNAL_FUNC (gtk_stext_adjustment),
2508 /* Just ignore it if we haven't been size-allocated and realized yet */
2509 if (text->line_start_cache == NULL)
2512 if (adjustment == text->hadj)
2514 g_warning ("horizontal scrolling not implemented");
2518 gint diff = ((gint)adjustment->value) - text->last_ver_value;
2522 undraw_cursor (text, FALSE);
2525 scroll_down (text, diff);
2526 else /* if (diff < 0) */
2527 scroll_up (text, diff);
2529 draw_cursor (text, FALSE);
2531 text->last_ver_value = adjustment->value;
2537 gtk_stext_disconnect (GtkAdjustment *adjustment,
2540 g_return_if_fail (adjustment != NULL);
2541 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2542 g_return_if_fail (text != NULL);
2543 g_return_if_fail (GTK_IS_STEXT (text));
2545 if (adjustment == text->hadj)
2546 gtk_stext_set_adjustments (text, NULL, text->vadj);
2547 if (adjustment == text->vadj)
2548 gtk_stext_set_adjustments (text, text->hadj, NULL);
2552 static GtkSPropertyMark
2553 find_this_line_start_mark (GtkSText* text, guint point_position, const GtkSPropertyMark* near)
2555 GtkSPropertyMark mark;
2557 mark = find_mark_near (text, point_position, near);
2559 while (mark.index > 0 &&
2560 GTK_STEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
2561 decrement_mark (&mark);
2567 init_tab_cont (GtkSText* text, PrevTabCont* tab_cont)
2569 tab_cont->pixel_offset = 0;
2570 tab_cont->tab_start.tab_stops = text->tab_stops;
2571 tab_cont->tab_start.to_next_tab = (gulong) text->tab_stops->data;
2573 if (!tab_cont->tab_start.to_next_tab)
2574 tab_cont->tab_start.to_next_tab = text->default_tab_width;
2578 line_params_iterate (GtkSText* text,
2579 const GtkSPropertyMark* mark0,
2580 const PrevTabCont* tab_mark0,
2583 LineIteratorFunction iter)
2584 /* mark0 MUST be a real line start. if ALLOC, allocate line params
2585 * from a mem chunk. DATA is passed to ITER_CALL, which is called
2586 * for each line following MARK, iteration continues unless ITER_CALL
2589 GtkSPropertyMark mark = *mark0;
2590 PrevTabCont tab_conts[2];
2591 LineParams *lp, lpbuf;
2592 gint tab_cont_index = 0;
2595 tab_conts[0] = *tab_mark0;
2597 init_tab_cont (text, tab_conts);
2602 lp = g_chunk_new (LineParams, params_mem_chunk);
2606 *lp = find_line_params (text, &mark, tab_conts + tab_cont_index,
2607 tab_conts + (tab_cont_index + 1) % 2);
2609 if ((*iter) (text, lp, data))
2612 if (LAST_INDEX (text, lp->end))
2616 advance_mark (&mark);
2617 tab_cont_index = (tab_cont_index + 1) % 2;
2622 fetch_lines_iterator (GtkSText* text, LineParams* lp, void* data)
2624 FetchLinesData *fldata = (FetchLinesData*) data;
2626 fldata->new_lines = g_list_prepend (fldata->new_lines, lp);
2628 switch (fldata->fl_type)
2630 case FetchLinesCount:
2631 if (!text->line_wrap || !lp->wraps)
2634 if (fldata->data >= fldata->data_max)
2638 case FetchLinesPixels:
2640 fldata->data += LINE_HEIGHT(*lp);
2642 if (fldata->data >= fldata->data_max)
2652 fetch_lines (GtkSText* text,
2653 const GtkSPropertyMark* mark0,
2654 const PrevTabCont* tab_cont0,
2658 FetchLinesData fl_data;
2660 fl_data.new_lines = NULL;
2662 fl_data.data_max = data;
2663 fl_data.fl_type = fl_type;
2665 line_params_iterate (text, mark0, tab_cont0, TRUE, &fl_data, fetch_lines_iterator);
2667 return g_list_reverse (fl_data.new_lines);
2671 fetch_lines_backward (GtkSText* text)
2673 GList* new_lines = NULL, *new_line_start;
2674 GtkSPropertyMark mark;
2676 if (CACHE_DATA(text->line_start_cache).start.index == 0)
2679 mark = find_this_line_start_mark (text,
2680 CACHE_DATA(text->line_start_cache).start.index - 1,
2681 &CACHE_DATA(text->line_start_cache).start);
2683 new_line_start = new_lines = fetch_lines (text, &mark, NULL, FetchLinesCount, 1);
2685 while (new_line_start->next)
2686 new_line_start = new_line_start->next;
2688 new_line_start->next = text->line_start_cache;
2689 text->line_start_cache->prev = new_line_start;
2693 fetch_lines_forward (GtkSText* text, gint line_count)
2695 GtkSPropertyMark mark;
2696 GList* line = text->line_start_cache;
2701 mark = CACHE_DATA(line).end;
2703 if (LAST_INDEX (text, mark))
2706 advance_mark(&mark);
2708 line->next = fetch_lines (text, &mark, &CACHE_DATA(line).tab_cont_next, FetchLinesCount, line_count);
2711 line->next->prev = line;
2714 /* Compute the number of lines, and vertical pixels for n characters
2715 * starting from the point
2718 compute_lines_pixels (GtkSText* text, guint char_count,
2719 guint *lines, guint *pixels)
2721 GList *line = text->current_line;
2722 gint chars_left = char_count;
2727 /* If chars_left == 0, that means we're joining two lines in a
2728 * deletion, so add in the values for the next line as well
2730 for (; line && chars_left >= 0; line = line->next)
2732 *pixels += LINE_HEIGHT(CACHE_DATA(line));
2734 if (line == text->current_line)
2735 chars_left -= CACHE_DATA(line).end.index - text->point.index + 1;
2737 chars_left -= CACHE_DATA(line).end.index - CACHE_DATA(line).start.index + 1;
2739 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2743 chars_left = 0; /* force another loop */
2746 fetch_lines_forward (text, 1);
2751 total_line_height (GtkSText* text, GList* line, gint line_count)
2755 for (; line && line_count > 0; line = line->next)
2757 height += LINE_HEIGHT(CACHE_DATA(line));
2759 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2763 fetch_lines_forward (text, line_count);
2770 swap_lines (GtkSText* text, GList* old, GList* new, guint old_line_count)
2772 if (old == text->line_start_cache)
2776 for (; old_line_count > 0; old_line_count -= 1)
2778 while (text->line_start_cache &&
2780 CACHE_DATA(text->line_start_cache).wraps)
2781 remove_cache_line(text, text->line_start_cache);
2783 remove_cache_line(text, text->line_start_cache);
2786 last = g_list_last (new);
2788 last->next = text->line_start_cache;
2790 if (text->line_start_cache)
2791 text->line_start_cache->prev = last;
2793 text->line_start_cache = new;
2799 g_assert (old->prev);
2803 for (; old_line_count > 0; old_line_count -= 1)
2805 while (old && text->line_wrap && CACHE_DATA(old).wraps)
2806 old = remove_cache_line (text, old);
2808 old = remove_cache_line (text, old);
2814 last = g_list_last (new);
2824 correct_cache_delete (GtkSText* text, gint nchars, gint lines)
2826 GList* cache = text->current_line;
2829 for (i = 0; cache && i < lines; i += 1, cache = cache->next)
2832 for (; cache; cache = cache->next)
2834 GtkSPropertyMark *start = &CACHE_DATA(cache).start;
2835 GtkSPropertyMark *end = &CACHE_DATA(cache).end;
2837 start->index -= nchars;
2838 end->index -= nchars;
2840 if (LAST_INDEX (text, text->point) &&
2841 start->index == text->point.index)
2842 *start = text->point;
2843 else if (start->property == text->point.property)
2844 start->offset = start->index - (text->point.index - text->point.offset);
2846 if (LAST_INDEX (text, text->point) &&
2847 end->index == text->point.index)
2849 if (end->property == text->point.property)
2850 end->offset = end->index - (text->point.index - text->point.offset);
2852 /*TEXT_ASSERT_MARK(text, start, "start");*/
2853 /*TEXT_ASSERT_MARK(text, end, "end");*/
2858 delete_expose (GtkSText* text, guint nchars, guint old_lines, guint old_pixels)
2860 GtkWidget *widget = GTK_WIDGET (text);
2863 guint new_pixels = 0;
2865 GList* new_line = NULL;
2868 text->cursor_virtual_x = 0;
2870 correct_cache_delete (text, nchars, old_lines);
2872 pixel_height = pixel_height_of(text, text->current_line) -
2873 LINE_HEIGHT(CACHE_DATA(text->current_line));
2875 if (CACHE_DATA(text->current_line).start.index == text->point.index)
2876 CACHE_DATA(text->current_line).start = text->point;
2878 new_line = fetch_lines (text,
2879 &CACHE_DATA(text->current_line).start,
2880 &CACHE_DATA(text->current_line).tab_cont,
2884 swap_lines (text, text->current_line, new_line, old_lines);
2886 text->current_line = new_line;
2888 new_pixels = total_line_height (text, new_line, 1);
2890 gdk_window_get_size (text->text_area, &width, &height);
2892 if (old_pixels != new_pixels)
2894 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2896 gdk_draw_pixmap (text->text_area,
2900 pixel_height + old_pixels,
2902 pixel_height + new_pixels,
2906 text->vadj->upper += new_pixels;
2907 text->vadj->upper -= old_pixels;
2908 adjust_adj (text, text->vadj);
2912 rect.y = pixel_height;
2914 rect.height = new_pixels;
2916 expose_text (text, &rect, FALSE);
2917 gtk_stext_draw_focus ( (GtkWidget *) text);
2919 text->cursor_mark = text->point;
2921 find_cursor (text, TRUE);
2923 if (old_pixels != new_pixels)
2925 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2928 rect.y = pixel_height + new_pixels;
2930 rect.height = height - rect.y;
2932 expose_text (text, &rect, FALSE);
2935 process_exposes (text);
2942 /* note, the point has already been moved forward */
2944 correct_cache_insert (GtkSText* text, gint nchars)
2947 GtkSPropertyMark *start;
2948 GtkSPropertyMark *end;
2950 /* If we inserted a property exactly at the beginning of the
2951 * line, we have to correct here, or fetch_lines will
2954 start = &CACHE_DATA(text->current_line).start;
2955 if (start->index == text->point.index - nchars)
2957 *start = text->point;
2958 move_mark_n (start, -nchars);
2961 /* Now correct the offsets, and check for start or end marks that
2962 * are after the point, yet point to a property before the point's
2963 * property. This indicates that they are meant to point to the
2964 * second half of a property we split in insert_text_property(), so
2965 * we fix them up that way.
2967 cache = text->current_line->next;
2969 for (; cache; cache = cache->next)
2971 start = &CACHE_DATA(cache).start;
2972 end = &CACHE_DATA(cache).end;
2974 if (LAST_INDEX (text, text->point) &&
2975 start->index == text->point.index)
2976 *start = text->point;
2979 if (start->property == text->point.property)
2981 start->offset += nchars;
2982 start->index += nchars;
2984 else if (start->property->next &&
2985 (start->property->next->next == text->point.property))
2987 /* We split the property, and this is the second half */
2988 start->offset -= MARK_CURRENT_PROPERTY (start)->length;
2989 start->index += nchars;
2990 start->property = text->point.property;
2993 start->index += nchars;
2996 if (LAST_INDEX (text, text->point) &&
2997 end->index == text->point.index)
3001 if (end->property == text->point.property)
3003 end->offset += nchars;
3004 end->index += nchars;
3006 else if (end->property->next &&
3007 (end->property->next->next == text->point.property))
3009 /* We split the property, and this is the second half */
3010 end->offset -= MARK_CURRENT_PROPERTY (end)->length;
3011 end->index += nchars;
3012 end->property = text->point.property;
3015 end->index += nchars;
3018 /*TEXT_ASSERT_MARK(text, start, "start");*/
3019 /*TEXT_ASSERT_MARK(text, end, "end");*/
3025 insert_expose (GtkSText* text, guint old_pixels, gint nchars,
3026 guint new_line_count)
3028 GtkWidget *widget = GTK_WIDGET (text);
3031 guint new_pixels = 0;
3033 GList* new_lines = NULL;
3036 text->cursor_virtual_x = 0;
3038 undraw_cursor (text, FALSE);
3040 correct_cache_insert (text, nchars);
3042 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
3044 pixel_height = pixel_height_of(text, text->current_line) -
3045 LINE_HEIGHT(CACHE_DATA(text->current_line));
3047 new_lines = fetch_lines (text,
3048 &CACHE_DATA(text->current_line).start,
3049 &CACHE_DATA(text->current_line).tab_cont,
3053 swap_lines (text, text->current_line, new_lines, 1);
3055 text->current_line = new_lines;
3057 new_pixels = total_line_height (text, new_lines, new_line_count);
3059 gdk_window_get_size (text->text_area, &width, &height);
3061 if (old_pixels != new_pixels)
3063 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
3065 gdk_draw_pixmap (text->text_area,
3069 pixel_height + old_pixels,
3071 pixel_height + new_pixels,
3073 height + (old_pixels - new_pixels) - pixel_height);
3076 text->vadj->upper += new_pixels;
3077 text->vadj->upper -= old_pixels;
3078 adjust_adj (text, text->vadj);
3082 rect.y = pixel_height;
3084 rect.height = new_pixels;
3086 expose_text (text, &rect, FALSE);
3087 gtk_stext_draw_focus ( (GtkWidget *) text);
3089 text->cursor_mark = text->point;
3091 find_cursor (text, TRUE);
3093 draw_cursor (text, FALSE);
3095 if (old_pixels != new_pixels)
3097 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
3100 rect.y = pixel_height + new_pixels;
3102 rect.height = height - rect.y;
3104 expose_text (text, &rect, FALSE);
3107 process_exposes (text);
3110 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
3115 /* Text property functions */
3118 font_hash (gconstpointer font)
3120 return gdk_font_id ((const GdkFont*) font);
3123 static GHashTable *font_cache_table = NULL;
3125 static GtkSTextFont*
3126 get_text_font (GdkFont* gfont)
3131 if (!font_cache_table)
3132 font_cache_table = g_hash_table_new (font_hash, (GCompareFunc) gdk_font_equal);
3134 tf = g_hash_table_lookup (font_cache_table, gfont);
3142 tf = g_new (GtkSTextFont, 1);
3145 tf->gdk_font = gfont;
3146 gdk_font_ref (gfont);
3148 for(i = 0; i < 256; i += 1)
3149 tf->char_widths[i] = gdk_char_width (gfont, (char)i);
3151 g_hash_table_insert (font_cache_table, gfont, tf);
3157 text_font_unref (GtkSTextFont *text_font)
3159 text_font->ref_count--;
3160 if (text_font->ref_count == 0)
3162 g_hash_table_remove (font_cache_table, text_font->gdk_font);
3163 gdk_font_unref (text_font->gdk_font);
3169 text_properties_equal (TextProperty* prop, GdkFont* font, GdkColor *fore, GdkColor *back)
3171 if (prop->flags & PROPERTY_FONT)
3174 GtkSTextFont *text_font;
3179 text_font = get_text_font (font);
3181 retval = (prop->font == text_font);
3182 text_font_unref (text_font);
3191 if (prop->flags & PROPERTY_FOREGROUND)
3193 if (!fore || !gdk_color_equal (&prop->fore_color, fore))
3200 if (prop->flags & PROPERTY_BACKGROUND)
3202 if (!back || !gdk_color_equal (&prop->back_color, back))
3213 realize_property (GtkSText *text, TextProperty *prop)
3215 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
3217 if (prop->flags & PROPERTY_FOREGROUND)
3218 gdk_colormap_alloc_color (colormap, &prop->fore_color, FALSE, FALSE);
3220 if (prop->flags & PROPERTY_BACKGROUND)
3221 gdk_colormap_alloc_color (colormap, &prop->back_color, FALSE, FALSE);
3225 realize_properties (GtkSText *text)
3227 GList *tmp_list = text->text_properties;
3231 realize_property (text, tmp_list->data);
3233 tmp_list = tmp_list->next;
3238 unrealize_property (GtkSText *text, TextProperty *prop)
3240 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
3242 if (prop->flags & PROPERTY_FOREGROUND)
3243 gdk_colormap_free_colors (colormap, &prop->fore_color, 1);
3245 if (prop->flags & PROPERTY_BACKGROUND)
3246 gdk_colormap_free_colors (colormap, &prop->back_color, 1);
3250 unrealize_properties (GtkSText *text)
3252 GList *tmp_list = text->text_properties;
3256 unrealize_property (text, tmp_list->data);
3258 tmp_list = tmp_list->next;
3262 static TextProperty*
3263 new_text_property (GtkSText *text, GdkFont *font, GdkColor* fore,
3264 GdkColor* back, guint length)
3268 if (text_property_chunk == NULL)
3270 text_property_chunk = g_mem_chunk_new ("text property mem chunk",
3271 sizeof(TextProperty),
3272 1024*sizeof(TextProperty),
3276 prop = g_chunk_new(TextProperty, text_property_chunk);
3281 prop->flags |= PROPERTY_FONT;
3282 prop->font = get_text_font (font);
3289 prop->flags |= PROPERTY_FOREGROUND;
3290 prop->fore_color = *fore;
3295 prop->flags |= PROPERTY_BACKGROUND;
3296 prop->back_color = *back;
3299 prop->length = length;
3301 if (GTK_WIDGET_REALIZED (text))
3302 realize_property (text, prop);
3308 destroy_text_property (TextProperty *prop)
3311 text_font_unref (prop->font);
3313 g_mem_chunk_free (text_property_chunk, prop);
3316 /* Flop the memory between the point and the gap around like a
3319 move_gap (GtkSText* text, guint index)
3321 if (text->gap_position < index)
3323 gint diff = index - text->gap_position;
3325 if (text->use_wchar)
3326 g_memmove (text->text.wc + text->gap_position,
3327 text->text.wc + text->gap_position + text->gap_size,
3328 diff*sizeof (GdkWChar));
3330 g_memmove (text->text.ch + text->gap_position,
3331 text->text.ch + text->gap_position + text->gap_size,
3334 text->gap_position = index;
3336 else if (text->gap_position > index)
3338 gint diff = text->gap_position - index;
3340 if (text->use_wchar)
3341 g_memmove (text->text.wc + index + text->gap_size,
3342 text->text.wc + index,
3343 diff*sizeof (GdkWChar));
3345 g_memmove (text->text.ch + index + text->gap_size,
3346 text->text.ch + index,
3349 text->gap_position = index;
3353 /* Increase the gap size. */
3355 make_forward_space (GtkSText* text, guint len)
3357 if (text->gap_size < len)
3359 guint sum = MAX(2*len, MIN_GAP_SIZE) + text->text_end;
3361 if (sum >= text->text_len)
3365 while (i <= sum) i <<= 1;
3367 if (text->use_wchar)
3368 text->text.wc = (GdkWChar *)g_realloc(text->text.wc,
3369 i*sizeof(GdkWChar));
3371 text->text.ch = (guchar *)g_realloc(text->text.ch, i);
3375 if (text->use_wchar)
3376 g_memmove (text->text.wc + text->gap_position + text->gap_size + 2*len,
3377 text->text.wc + text->gap_position + text->gap_size,
3378 (text->text_end - (text->gap_position + text->gap_size))
3381 g_memmove (text->text.ch + text->gap_position + text->gap_size + 2*len,
3382 text->text.ch + text->gap_position + text->gap_size,
3383 text->text_end - (text->gap_position + text->gap_size));
3385 text->text_end += len*2;
3386 text->gap_size += len*2;
3390 /* Inserts into the text property list a list element that guarantees
3391 * that for len characters following the point, text has the correct
3392 * property. does not move point. adjusts text_properties_point and
3393 * text_properties_point_offset relative to the current value of
3396 insert_text_property (GtkSText* text, GdkFont* font,
3397 GdkColor *fore, GdkColor* back, guint len)
3399 GtkSPropertyMark *mark = &text->point;
3400 TextProperty* forward_prop = MARK_CURRENT_PROPERTY(mark);
3401 TextProperty* backward_prop = MARK_PREV_PROPERTY(mark);
3403 if (MARK_OFFSET(mark) == 0)
3405 /* Point is on the boundary of two properties.
3406 * If it is the same as either, grow, else insert
3409 if (text_properties_equal(forward_prop, font, fore, back))
3411 /* Grow the property in front of us. */
3413 MARK_PROPERTY_LENGTH(mark) += len;
3415 else if (backward_prop &&
3416 text_properties_equal(backward_prop, font, fore, back))
3418 /* Grow property behind us, point property and offset
3421 SET_PROPERTY_MARK (&text->point,
3422 MARK_PREV_LIST_PTR (mark),
3423 backward_prop->length);
3425 backward_prop->length += len;
3427 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3428 (forward_prop->length == 1))
3430 /* Next property just has last position, take it over */
3432 if (GTK_WIDGET_REALIZED (text))
3433 unrealize_property (text, forward_prop);
3435 forward_prop->flags = 0;
3438 forward_prop->flags |= PROPERTY_FONT;
3439 forward_prop->font = get_text_font (font);
3442 forward_prop->font = NULL;
3446 forward_prop->flags |= PROPERTY_FOREGROUND;
3447 forward_prop->fore_color = *fore;
3451 forward_prop->flags |= PROPERTY_BACKGROUND;
3452 forward_prop->back_color = *back;
3454 forward_prop->length += len;
3456 if (GTK_WIDGET_REALIZED (text))
3457 realize_property (text, forward_prop);
3461 /* Splice a new property into the list. */
3463 GList* new_prop = g_list_alloc();
3465 new_prop->next = MARK_LIST_PTR(mark);
3466 new_prop->prev = MARK_PREV_LIST_PTR(mark);
3467 new_prop->next->prev = new_prop;
3470 new_prop->prev->next = new_prop;
3472 new_prop->data = new_text_property (text, font, fore, back, len);
3474 SET_PROPERTY_MARK (mark, new_prop, 0);
3479 /* The following will screw up the line_start cache,
3480 * we'll fix it up in correct_cache_insert
3483 /* In the middle of forward_prop, if properties are equal,
3484 * just add to its length, else split it into two and splice
3486 if (text_properties_equal (forward_prop, font, fore, back))
3488 forward_prop->length += len;
3490 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3491 (MARK_OFFSET(mark) + 1 == forward_prop->length))
3493 /* Inserting before only the last position in the text */
3496 forward_prop->length -= 1;
3498 new_prop = g_list_alloc();
3499 new_prop->data = new_text_property (text, font, fore, back, len+1);
3500 new_prop->prev = MARK_LIST_PTR(mark);
3501 new_prop->next = NULL;
3502 MARK_NEXT_LIST_PTR(mark) = new_prop;
3504 SET_PROPERTY_MARK (mark, new_prop, 0);
3508 GList* new_prop = g_list_alloc();
3509 GList* new_prop_forward = g_list_alloc();
3510 gint old_length = forward_prop->length;
3511 GList* next = MARK_NEXT_LIST_PTR(mark);
3513 /* Set the new lengths according to where they are split. Construct
3514 * two new properties. */
3515 forward_prop->length = MARK_OFFSET(mark);
3517 new_prop_forward->data =
3518 new_text_property(text,
3519 forward_prop->flags & PROPERTY_FONT ?
3520 forward_prop->font->gdk_font : NULL,
3521 forward_prop->flags & PROPERTY_FOREGROUND ?
3522 &forward_prop->fore_color : NULL,
3523 forward_prop->flags & PROPERTY_BACKGROUND ?
3524 &forward_prop->back_color : NULL,
3525 old_length - forward_prop->length);
3527 new_prop->data = new_text_property(text, font, fore, back, len);
3529 /* Now splice things in. */
3530 MARK_NEXT_LIST_PTR(mark) = new_prop;
3531 new_prop->prev = MARK_LIST_PTR(mark);
3533 new_prop->next = new_prop_forward;
3534 new_prop_forward->prev = new_prop;
3536 new_prop_forward->next = next;
3539 next->prev = new_prop_forward;
3541 SET_PROPERTY_MARK (mark, new_prop, 0);
3545 while (text->text_properties_end->next)
3546 text->text_properties_end = text->text_properties_end->next;
3548 while (text->text_properties->prev)
3549 text->text_properties = text->text_properties->prev;
3553 delete_text_property (GtkSText* text, guint nchars)
3555 /* Delete nchars forward from point. */
3557 /* Deleting text properties is problematical, because we
3558 * might be storing around marks pointing to a property.
3560 * The marks in question and how we handle them are:
3562 * point: We know the new value, since it will be at the
3563 * end of the deleted text, and we move it there
3565 * cursor: We just remove the mark and set it equal to the
3566 * point after the operation.
3567 * line-start cache: We replace most affected lines.
3568 * The current line gets used to fetch the new
3569 * lines so, if necessary, (delete at the beginning
3570 * of a line) we fix it up by setting it equal to the
3578 for(; nchars; nchars -= 1)
3580 prop = MARK_CURRENT_PROPERTY(&text->point);
3584 if (prop->length == 0)
3586 tmp = MARK_LIST_PTR (&text->point);
3588 is_first = tmp == text->text_properties;
3590 MARK_LIST_PTR (&text->point) = g_list_remove_link (tmp, tmp);
3591 text->point.offset = 0;
3593 if (GTK_WIDGET_REALIZED (text))
3594 unrealize_property (text, prop);
3596 destroy_text_property (prop);
3597 g_list_free_1 (tmp);
3599 prop = MARK_CURRENT_PROPERTY (&text->point);
3602 text->text_properties = MARK_LIST_PTR (&text->point);
3604 g_assert (prop->length != 0);
3606 else if (prop->length == text->point.offset)
3608 MARK_LIST_PTR (&text->point) = MARK_NEXT_LIST_PTR (&text->point);
3609 text->point.offset = 0;
3613 /* Check to see if we have just the single final position remaining
3614 * along in a property; if so, combine it with the previous property
3616 if (LAST_INDEX (text, text->point) &&
3617 (MARK_OFFSET (&text->point) == 0) &&
3618 (MARK_PREV_LIST_PTR(&text->point) != NULL))
3620 tmp = MARK_LIST_PTR (&text->point);
3621 prop = MARK_CURRENT_PROPERTY(&text->point);
3623 MARK_LIST_PTR (&text->point) = MARK_PREV_LIST_PTR (&text->point);
3624 MARK_CURRENT_PROPERTY(&text->point)->length += 1;
3625 MARK_NEXT_LIST_PTR(&text->point) = NULL;
3627 text->point.offset = MARK_CURRENT_PROPERTY(&text->point)->length - 1;
3629 if (GTK_WIDGET_REALIZED (text))
3630 unrealize_property (text, prop);
3632 destroy_text_property (prop);
3633 g_list_free_1 (tmp);
3638 init_properties (GtkSText *text)
3640 if (!text->text_properties)
3642 text->text_properties = g_list_alloc();
3643 text->text_properties->next = NULL;
3644 text->text_properties->prev = NULL;
3645 text->text_properties->data = new_text_property (text, NULL, NULL, NULL, 1);
3646 text->text_properties_end = text->text_properties;
3648 SET_PROPERTY_MARK (&text->point, text->text_properties, 0);
3650 text->point.index = 0;
3655 /**********************************************************************/
3656 /* Property Movement */
3657 /**********************************************************************/
3660 move_mark_n (GtkSPropertyMark* mark, gint n)
3663 advance_mark_n(mark, n);
3665 decrement_mark_n(mark, -n);
3669 advance_mark (GtkSPropertyMark* mark)
3671 TextProperty* prop = MARK_CURRENT_PROPERTY (mark);
3675 if (prop->length > mark->offset + 1)
3679 mark->property = MARK_NEXT_LIST_PTR (mark);
3685 advance_mark_n (GtkSPropertyMark* mark, gint n)
3692 i = 0; /* otherwise it migth not be init. */
3693 prop = MARK_CURRENT_PROPERTY(mark);
3695 if ((prop->length - mark->offset - 1) < n) { /* if we need to change prop. */
3696 /* to make it easier */
3697 n += (mark->offset);
3698 mark->index -= mark->offset;
3700 /* first we take seven-mile-leaps to get to the right text
3702 while ((n-i) > prop->length - 1) {
3704 mark->index += prop->length;
3705 mark->property = MARK_NEXT_LIST_PTR (mark);
3706 prop = MARK_CURRENT_PROPERTY (mark);
3710 /* and then the rest */
3711 mark->index += n - i;
3712 mark->offset += n - i;
3716 decrement_mark (GtkSPropertyMark* mark)
3720 if (mark->offset > 0)
3724 mark->property = MARK_PREV_LIST_PTR (mark);
3725 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3730 decrement_mark_n (GtkSPropertyMark* mark, gint n)
3734 while (mark->offset < n) {
3735 /* jump to end of prev */
3736 n -= mark->offset + 1;
3737 mark->index -= mark->offset + 1;
3738 mark->property = MARK_PREV_LIST_PTR (mark);
3739 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3747 static GtkSPropertyMark
3748 find_mark (GtkSText* text, guint mark_position)
3750 return find_mark_near (text, mark_position, &text->point);
3754 * You can also start from the end, what a drag.
3756 static GtkSPropertyMark
3757 find_mark_near (GtkSText* text, guint mark_position, const GtkSPropertyMark* near)
3762 GtkSPropertyMark mark;
3765 diffa = mark_position + 1;
3767 diffa = mark_position - near->index;
3769 diffb = mark_position;
3781 mark.property = text->text_properties;
3785 move_mark_n (&mark, mark_position - mark.index);
3790 /* This routine must be called with scroll == FALSE, only when
3791 * point is at least partially on screen
3795 find_line_containing_point (GtkSText* text, guint point,
3801 text->current_line = NULL;
3805 /* Scroll backwards until the point is on screen
3807 while (CACHE_DATA(text->line_start_cache).start.index > point)
3808 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache)));
3810 /* Now additionally try to make sure that the point is fully on screen
3814 while (text->first_cut_pixels != 0 &&
3815 text->line_start_cache->next &&
3816 CACHE_DATA(text->line_start_cache->next).start.index > point)
3817 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache->next)));
3820 gdk_window_get_size (text->text_area, NULL, &height);
3822 for (cache = text->line_start_cache; cache; cache = cache->next)
3826 if (CACHE_DATA(cache).end.index >= point ||
3827 LAST_INDEX(text, CACHE_DATA(cache).end))
3829 text->current_line = cache; /* LOOK HERE, this proc has an
3830 * important side effect. */
3834 TEXT_SHOW_LINE (text, cache, "cache");
3836 if (cache->next == NULL)
3837 fetch_lines_forward (text, 1);
3841 lph = pixel_height_of (text, cache->next);
3843 /* Scroll the bottom of the line is on screen, or until
3844 * the line is the first onscreen line.
3846 while (cache->next != text->line_start_cache && lph > height)
3848 TEXT_SHOW_LINE (text, cache, "cache");
3849 TEXT_SHOW_LINE (text, cache->next, "cache->next");
3850 scroll_int (text, LINE_HEIGHT(CACHE_DATA(cache->next)));
3851 lph = pixel_height_of (text, cache->next);
3856 g_assert_not_reached (); /* Must set text->current_line here */
3860 pixel_height_of (GtkSText* text, GList* cache_line)
3862 gint pixels = - text->first_cut_pixels;
3863 GList *cache = text->line_start_cache;
3866 pixels += LINE_HEIGHT (CACHE_DATA(cache));
3868 if (cache->data == cache_line->data)
3871 cache = cache->next;
3877 /**********************************************************************/
3878 /* Search and Placement */
3879 /**********************************************************************/
3882 find_char_width (GtkSText* text, const GtkSPropertyMark *mark, const TabStopMark *tab_mark)
3885 gint16* char_widths;
3887 if (LAST_INDEX (text, *mark))
3890 ch = GTK_STEXT_INDEX (text, mark->index);
3891 char_widths = MARK_CURRENT_TEXT_FONT (text, mark)->char_widths;
3895 return tab_mark->to_next_tab * char_widths[' '];
3897 else if (!text->use_wchar)
3899 return char_widths[ch];
3903 return gdk_char_width_wc(MARK_CURRENT_TEXT_FONT(text, mark)->gdk_font, ch);
3908 advance_tab_mark (GtkSText* text, TabStopMark* tab_mark, GdkWChar ch)
3910 if (tab_mark->to_next_tab == 1 || ch == '\t')
3912 if (tab_mark->tab_stops->next)
3914 tab_mark->tab_stops = tab_mark->tab_stops->next;
3915 tab_mark->to_next_tab = (gulong) tab_mark->tab_stops->data;
3919 tab_mark->to_next_tab = text->default_tab_width;
3924 tab_mark->to_next_tab -= 1;
3929 advance_tab_mark_n (GtkSText* text, TabStopMark* tab_mark, gint n)
3933 advance_tab_mark (text, tab_mark, 0);
3937 find_cursor_at_line (GtkSText* text, const LineParams* start_line, gint pixel_height)
3940 GtkEditable *editable = (GtkEditable *)text;
3942 GtkSPropertyMark mark = start_line->start;
3943 TabStopMark tab_mark = start_line->tab_cont.tab_start;
3944 gint pixel_width = LINE_START_PIXEL (*start_line);
3946 while (mark.index < text->cursor_mark.index)
3948 pixel_width += find_char_width (text, &mark, &tab_mark);
3950 advance_tab_mark (text, &tab_mark, GTK_STEXT_INDEX(text, mark.index));
3951 advance_mark (&mark);
3954 text->cursor_pos_x = pixel_width;
3955 text->cursor_pos_y = pixel_height;
3956 text->cursor_char_offset = start_line->font_descent;
3957 text->cursor_mark = mark;
3959 ch = LAST_INDEX (text, mark) ?
3960 LINE_DELIM : GTK_STEXT_INDEX (text, mark.index);
3962 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
3963 text->cursor_char = 0;
3965 text->cursor_char = ch;
3967 #ifdef USE_GTKGDK_XIM
3968 if (GTK_WIDGET_HAS_FOCUS(text) && gdk_im_ready() && editable->ic &&
3969 (gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION))
3971 GdkICAttributesType mask = GDK_IC_SPOT_LOCATION |
3972 GDK_IC_PREEDIT_FOREGROUND |
3973 GDK_IC_PREEDIT_BACKGROUND;
3975 editable->ic_attr->spot_location.x = text->cursor_pos_x;
3976 editable->ic_attr->spot_location.y
3977 = text->cursor_pos_y - text->cursor_char_offset;
3978 editable->ic_attr->preedit_foreground = *MARK_CURRENT_FORE (text, &mark);
3979 editable->ic_attr->preedit_background = *MARK_CURRENT_BACK (text, &mark);
3981 if (MARK_CURRENT_FONT (text, &mark)->type == GDK_FONT_FONTSET)
3983 mask |= GDK_IC_PREEDIT_FONTSET;
3984 editable->ic_attr->preedit_fontset = MARK_CURRENT_FONT (text, &mark);
3987 gdk_ic_set_attr (editable->ic, editable->ic_attr, mask);
3993 find_cursor (GtkSText* text, gboolean scroll)
3995 if (GTK_WIDGET_REALIZED (text))
3997 find_line_containing_point (text, text->cursor_mark.index, scroll);
3999 if (text->current_line)
4000 find_cursor_at_line (text,
4001 &CACHE_DATA(text->current_line),
4002 pixel_height_of(text, text->current_line));
4005 GTK_EDITABLE (text)->current_pos = text->cursor_mark.index;
4009 find_mouse_cursor_at_line (GtkSText *text, const LineParams* lp,
4010 guint line_pixel_height,
4013 GtkSPropertyMark mark = lp->start;
4014 TabStopMark tab_mark = lp->tab_cont.tab_start;
4016 gint char_width = find_char_width(text, &mark, &tab_mark);
4017 gint pixel_width = LINE_START_PIXEL (*lp) + (char_width+1)/2;
4019 text->cursor_pos_y = line_pixel_height;
4023 GdkWChar ch = LAST_INDEX (text, mark) ?
4024 LINE_DELIM : GTK_STEXT_INDEX (text, mark.index);
4026 if (button_x < pixel_width || mark.index == lp->end.index)
4028 text->cursor_pos_x = pixel_width - (char_width+1)/2;
4029 text->cursor_mark = mark;
4030 text->cursor_char_offset = lp->font_descent;
4032 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
4033 text->cursor_char = 0;
4035 text->cursor_char = ch;
4040 advance_tab_mark (text, &tab_mark, ch);
4041 advance_mark (&mark);
4043 pixel_width += char_width/2;
4045 char_width = find_char_width (text, &mark, &tab_mark);
4047 pixel_width += (char_width+1)/2;
4052 find_mouse_cursor (GtkSText* text, gint x, gint y)
4055 GList* cache = text->line_start_cache;
4059 pixel_height = - text->first_cut_pixels;
4061 for (; cache; cache = cache->next)
4063 pixel_height += LINE_HEIGHT(CACHE_DATA(cache));
4065 if (y < pixel_height || !cache->next)
4067 find_mouse_cursor_at_line (text, &CACHE_DATA(cache), pixel_height, x);
4069 find_cursor (text, FALSE);
4076 /**********************************************************************/
4078 /**********************************************************************/
4081 free_cache (GtkSText* text)
4083 GList* cache = text->line_start_cache;
4088 cache = cache->prev;
4090 text->line_start_cache = cache;
4093 for (; cache; cache = cache->next)
4094 g_mem_chunk_free (params_mem_chunk, cache->data);
4096 g_list_free (text->line_start_cache);
4098 text->line_start_cache = NULL;
4102 remove_cache_line (GtkSText* text, GList* member)
4109 if (member == text->line_start_cache)
4110 text->line_start_cache = text->line_start_cache->next;
4113 member->prev->next = member->next;
4116 member->next->prev = member->prev;
4118 list = member->next;
4120 g_mem_chunk_free (params_mem_chunk, member->data);
4121 g_list_free_1 (member);
4126 /**********************************************************************/
4128 /**********************************************************************/
4131 move_cursor_buffer_ver (GtkSText *text, int dir)
4133 undraw_cursor (text, FALSE);
4137 scroll_int (text, text->vadj->upper);
4138 text->cursor_mark = find_this_line_start_mark (text,
4140 &text->cursor_mark);
4144 scroll_int (text, - text->vadj->value);
4145 text->cursor_mark = find_this_line_start_mark (text,
4147 &text->cursor_mark);
4150 find_cursor (text, TRUE);
4151 draw_cursor (text, FALSE);
4155 move_cursor_page_ver (GtkSText *text, int dir)
4157 scroll_int (text, dir * text->vadj->page_increment);
4161 move_cursor_ver (GtkSText *text, int count)
4164 GtkSPropertyMark mark;
4167 mark = find_this_line_start_mark (text, text->cursor_mark.index, &text->cursor_mark);
4168 offset = text->cursor_mark.index - mark.index;
4170 if (offset > text->cursor_virtual_x)
4171 text->cursor_virtual_x = offset;
4175 if (mark.index == 0)
4178 decrement_mark (&mark);
4179 mark = find_this_line_start_mark (text, mark.index, &mark);
4183 mark = text->cursor_mark;
4185 while (!LAST_INDEX(text, mark) && GTK_STEXT_INDEX(text, mark.index) != LINE_DELIM)
4186 advance_mark (&mark);
4188 if (LAST_INDEX(text, mark))
4191 advance_mark (&mark);
4194 for (i=0; i < text->cursor_virtual_x; i += 1, advance_mark(&mark))
4195 if (LAST_INDEX(text, mark) ||
4196 GTK_STEXT_INDEX(text, mark.index) == LINE_DELIM)
4199 undraw_cursor (text, FALSE);
4201 text->cursor_mark = mark;
4203 find_cursor (text, TRUE);
4205 draw_cursor (text, FALSE);
4209 move_cursor_hor (GtkSText *text, int count)
4211 /* count should be +-1. */
4212 if ( (count > 0 && text->cursor_mark.index + count > TEXT_LENGTH(text)) ||
4213 (count < 0 && text->cursor_mark.index < (- count)) ||
4217 text->cursor_virtual_x = 0;
4219 undraw_cursor (text, FALSE);
4221 move_mark_n (&text->cursor_mark, count);
4223 find_cursor (text, TRUE);
4225 draw_cursor (text, FALSE);
4228 /* SYLPHEED - the default cursor movement of GtkText is aeons ahead of the
4229 * current technology level of the current generation of programmers and
4230 * end users. so sylpheed has to take a more mundane approach to editing.
4233 * move_cursor_to_display_row_end() (end of display line)
4234 * move_cursor_to_display_row_home() (home of display line)
4235 * move_cursor_to_display_row_up() (line up)
4236 * move_cursor_to_display_row_down() (line down)
4240 * SYLPHEED_TODO: for some reason the line fetcher also returns markers
4241 * of just one character! should investigate this... -- alfons
4244 static void move_cursor_to_display_row_end(GtkSText *text)
4246 LineParams lp = CACHE_DATA(text->current_line);
4247 int to_move = (lp.end.index - text->cursor_mark.index);
4249 /* advance this much */
4251 move_cursor_hor(text, to_move);
4255 static void move_cursor_to_display_row_start(GtkSText *text)
4257 LineParams lp = CACHE_DATA(text->current_line);
4258 int to_move = (text->cursor_mark.index - lp.start.index);
4260 move_cursor_hor(text, -to_move);
4265 static gboolean range_intersect(guint x1, guint x2, guint y1, guint y2)
4268 if (x1 > x2) { tmp = x1; x1 = x2; x2 = tmp; }
4269 if (y1 > y2) { tmp = y1; y1 = y2; y1 = tmp; }
4270 if (y1 < x1) { tmp = x1; x1 = y1; y1 = tmp; tmp = x2; x2 = y2; y2 = tmp; }
4280 static gint back_display_row_fetcher(GtkSText *text,
4284 if (range_intersect(data->start, data->end, params->start.index, params->end.index)) {
4285 XDEBUG( ("%s(%d) - FOUND search (%d, %d), current (%d, %d)", __FILE__, __LINE__,
4286 data->start, data->end,
4287 params->start.index, params->end.index) );
4292 XDEBUG( ("%s(%d) - NEXT search (%d, %d), current (%d, %d)", __FILE__, __LINE__,
4293 data->start, data->end,
4294 params->start.index, params->end.index) );
4300 static void move_cursor_to_display_row_up(GtkSText *text)
4306 GtkSPropertyMark mark;
4308 mark = find_this_line_start_mark(text, text->cursor_mark.index, &text->cursor_mark);
4311 if (mark.index == 0) {
4312 XDEBUG ( ("%s(%d) top of buffer", __FILE__, __LINE__) );
4315 /* we need previous DISPLAY row not the previous BUFFER line, so we go to start
4316 * of paragraph, and iterate over the lines until we have a LineParams that matches
4318 lp = CACHE_DATA(text->current_line);
4319 col = (text->cursor_mark.index - lp.start.index);
4320 data.start = lp.start.index;
4321 data.end = lp.end.index;
4323 /* get the previous line */
4324 if (mark.index != 0) {
4325 decrement_mark(&mark);
4326 if (mark.index != 0) {
4327 GtkSPropertyMark smark = mark;
4328 XDEBUG( ("%s(%d) finding line start mark", __FILE__, __LINE__) );
4329 mark = find_this_line_start_mark(text, smark.index -1, &smark);
4333 /* let's get the previous display line */
4334 XDEBUG( ("%s(%d) iterating to get display lines", __FILE__, __LINE__) );
4335 line_params_iterate(text, &mark, NULL, FALSE, &data,
4336 (LineIteratorFunction)back_display_row_fetcher);
4337 XDEBUG( ("%s(%d) done iterating. found = %d", __FILE__, __LINE__, data.found) );
4340 if (col < text->persist_column) col = text->persist_column;
4341 else text->persist_column = col;
4342 new_index = data.lp.start.index + col;
4343 XDEBUG( ("%s(%d) - new index = %d", __FILE__, __LINE__, new_index) );
4344 if (new_index > data.lp.end.index) {
4345 new_index = data.lp.end.index;
4347 /* and move the cursor */
4348 XDEBUG( ("%s(%d) - setting index", __FILE__, __LINE__) );
4349 gtk_stext_set_position_X(GTK_EDITABLE(text), new_index);
4360 #if defined(AHX_DEBUG)
4361 static void print_line(GtkSText *text, guint start, guint end)
4363 gchar *buf = alloca(2048), *walk = buf;
4365 memset(buf, 0, 2048);
4366 for (; start <= end; start++) {
4367 *walk++ = GTK_STEXT_INDEX(text, start);
4369 XDEBUG( ("%s", buf) );
4373 static gint forward_display_row_fetcher(GtkSText *text,
4378 XDEBUG( ("%s(%d) - FW RETURNS. search (%d, %d), current (%d, %d)",
4379 __FILE__, __LINE__, data->start, data->end, lp->start.index, lp->end.index) );
4381 data->completed = TRUE;
4382 print_line(text, lp->start.index, lp->end.index);
4385 else if (range_intersect(data->start, data->end, lp->start.index, lp->end.index)) {
4386 XDEBUG( ("%s(%d) - FW FOUND IT. search (%d, %d), current (%d, %d)",
4387 __FILE__, __LINE__, data->start, data->end, lp->start.index, lp->end.index) );
4396 static void move_cursor_to_display_row_down (GtkSText *text)
4401 GtkSPropertyMark mark;
4402 fdrf data = { FALSE, FALSE };
4404 mark = find_this_line_start_mark(text, text->cursor_mark.index, &text->cursor_mark);
4405 lp = CACHE_DATA(text->current_line);
4406 col = (text->cursor_mark.index - lp.start.index);
4408 data.start = lp.start.index;
4409 data.end = lp.end.index;
4411 /* find the next DISPLAY line */
4412 XDEBUG( ("%s(%d) - FW iterating", __FILE__, __LINE__) ) ;
4413 line_params_iterate(text, &mark, NULL, FALSE, &data,
4414 (LineIteratorFunction)forward_display_row_fetcher);
4415 XDEBUG( ("%s(%d) - FW done iterating", __FILE__, __LINE__) );
4417 if (data.completed) {
4418 if (col < text->persist_column) col = text->persist_column;
4419 else text->persist_column = col;
4420 new_index = data.lp.start.index + col;
4421 if (new_index > data.lp.end.index) {
4422 new_index = data.lp.end.index;
4424 /* and move the cursor */
4425 XDEBUG( ("%s(%d) - FW set pos %d", __FILE__, __LINE__, new_index) );
4426 gtk_stext_set_position_X(GTK_EDITABLE(text), new_index);
4430 static void reset_persist_col_pos(GtkSText *text)
4432 text->persist_column = 0;
4436 gtk_stext_move_cursor (GtkEditable *editable,
4443 move_cursor_hor (GTK_STEXT (editable), 1);
4448 move_cursor_hor (GTK_STEXT (editable), -1);
4454 move_cursor_ver (GTK_STEXT (editable), 1);
4459 move_cursor_ver (GTK_STEXT (editable), -1);
4464 gtk_stext_move_forward_character (GtkSText *text)
4466 move_cursor_hor (text, 1);
4470 gtk_stext_move_backward_character (GtkSText *text)
4472 move_cursor_hor (text, -1);
4476 gtk_stext_move_next_line (GtkSText *text)
4478 move_cursor_ver (text, 1);
4482 gtk_stext_move_previous_line (GtkSText *text)
4484 move_cursor_ver (text, -1);
4488 gtk_stext_move_word (GtkEditable *editable,
4494 gtk_stext_move_forward_word (GTK_STEXT (editable));
4499 gtk_stext_move_backward_word (GTK_STEXT (editable));
4504 gtk_stext_move_forward_word (GtkSText *text)
4506 text->cursor_virtual_x = 0;
4508 undraw_cursor (text, FALSE);
4510 if (text->use_wchar)
4512 while (!LAST_INDEX (text, text->cursor_mark) &&
4513 !gdk_iswalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index)))
4514 advance_mark (&text->cursor_mark);
4516 while (!LAST_INDEX (text, text->cursor_mark) &&
4517 gdk_iswalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index)))
4518 advance_mark (&text->cursor_mark);
4522 while (!LAST_INDEX (text, text->cursor_mark) &&
4523 !isalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index)))
4524 advance_mark (&text->cursor_mark);
4526 while (!LAST_INDEX (text, text->cursor_mark) &&
4527 isalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index)))
4528 advance_mark (&text->cursor_mark);
4531 find_cursor (text, TRUE);
4532 draw_cursor (text, FALSE);
4536 gtk_stext_move_backward_word (GtkSText *text)
4538 text->cursor_virtual_x = 0;
4540 undraw_cursor (text, FALSE);
4542 if (text->use_wchar)
4544 while ((text->cursor_mark.index > 0) &&
4545 !gdk_iswalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index-1)))
4546 decrement_mark (&text->cursor_mark);
4548 while ((text->cursor_mark.index > 0) &&
4549 gdk_iswalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index-1)))
4550 decrement_mark (&text->cursor_mark);
4554 while ((text->cursor_mark.index > 0) &&
4555 !isalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index-1)))
4556 decrement_mark (&text->cursor_mark);
4558 while ((text->cursor_mark.index > 0) &&
4559 isalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index-1)))
4560 decrement_mark (&text->cursor_mark);
4563 find_cursor (text, TRUE);
4564 draw_cursor (text, FALSE);
4568 gtk_stext_move_page (GtkEditable *editable,
4573 scroll_int (GTK_STEXT (editable),
4574 y * GTK_STEXT(editable)->vadj->page_increment);
4578 gtk_stext_move_to_row (GtkEditable *editable,
4584 gtk_stext_move_to_column (GtkEditable *editable,
4589 text = GTK_STEXT (editable);
4591 text->cursor_virtual_x = 0; /* FIXME */
4593 undraw_cursor (text, FALSE);
4595 /* Move to the beginning of the line */
4596 while ((text->cursor_mark.index > 0) &&
4597 (GTK_STEXT_INDEX (text, text->cursor_mark.index - 1) != LINE_DELIM))
4598 decrement_mark (&text->cursor_mark);
4600 while (!LAST_INDEX (text, text->cursor_mark) &&
4601 (GTK_STEXT_INDEX (text, text->cursor_mark.index) != LINE_DELIM))
4605 else if (column == 0)
4608 advance_mark (&text->cursor_mark);
4611 find_cursor (text, TRUE);
4612 draw_cursor (text, FALSE);
4616 gtk_stext_move_beginning_of_line (GtkSText *text)
4618 gtk_stext_move_to_column (GTK_EDITABLE (text), 0);
4623 gtk_stext_move_end_of_line (GtkSText *text)
4625 gtk_stext_move_to_column (GTK_EDITABLE (text), -1);
4629 gtk_stext_kill_char (GtkEditable *editable,
4634 text = GTK_STEXT (editable);
4636 if (editable->selection_start_pos != editable->selection_end_pos)
4637 gtk_editable_delete_selection (editable);
4642 if (text->point.index + 1 <= TEXT_LENGTH (text))
4643 gtk_editable_delete_text (editable, text->point.index, text->point.index + 1);
4647 if (text->point.index > 0)
4648 gtk_editable_delete_text (editable, text->point.index - 1, text->point.index);
4654 gtk_stext_delete_forward_character (GtkSText *text)
4656 gtk_stext_kill_char (GTK_EDITABLE (text), 1);
4660 gtk_stext_delete_backward_character (GtkSText *text)
4662 gtk_stext_kill_char (GTK_EDITABLE (text), -1);
4666 gtk_stext_kill_word (GtkEditable *editable,
4669 if (editable->selection_start_pos != editable->selection_end_pos)
4670 gtk_editable_delete_selection (editable);
4673 gint old_pos = editable->current_pos;
4676 gtk_stext_move_word (editable, 1);
4677 gtk_editable_delete_text (editable, old_pos, editable->current_pos);
4681 gtk_stext_move_word (editable, -1);
4682 gtk_editable_delete_text (editable, editable->current_pos, old_pos);
4688 gtk_stext_delete_forward_word (GtkSText *text)
4690 gtk_stext_kill_word (GTK_EDITABLE (text), 1);
4694 gtk_stext_delete_backward_word (GtkSText *text)
4696 gtk_stext_kill_word (GTK_EDITABLE (text), -1);
4700 gtk_stext_kill_line (GtkEditable *editable,
4703 gint old_pos = editable->current_pos;
4706 gtk_stext_move_to_column (editable, -1);
4707 gtk_editable_delete_text (editable, old_pos, editable->current_pos);
4711 gtk_stext_move_to_column (editable, 0);
4712 gtk_editable_delete_text (editable, editable->current_pos, old_pos);
4717 gtk_stext_delete_line (GtkSText *text)
4719 gtk_stext_move_to_column (GTK_EDITABLE (text), 0);
4720 gtk_stext_kill_line (GTK_EDITABLE (text), 1);
4724 gtk_stext_delete_to_line_end (GtkSText *text)
4726 gtk_stext_kill_line (GTK_EDITABLE (text), 1);
4730 gtk_stext_select_word (GtkSText *text, guint32 time)
4735 GtkEditable *editable;
4736 editable = GTK_EDITABLE (text);
4738 gtk_stext_move_backward_word (text);
4739 start_pos = text->cursor_mark.index;
4741 gtk_stext_move_forward_word (text);
4742 end_pos = text->cursor_mark.index;
4744 editable->has_selection = TRUE;
4745 gtk_stext_set_selection (editable, start_pos, end_pos);
4746 gtk_editable_claim_selection (editable, start_pos != end_pos, time);
4750 gtk_stext_select_line (GtkSText *text, guint32 time)
4755 GtkEditable *editable;
4756 editable = GTK_EDITABLE (text);
4758 gtk_stext_move_beginning_of_line (text);
4759 start_pos = text->cursor_mark.index;
4761 gtk_stext_move_end_of_line (text);
4762 gtk_stext_move_forward_character (text);
4763 end_pos = text->cursor_mark.index;
4765 editable->has_selection = TRUE;
4766 gtk_stext_set_selection (editable, start_pos, end_pos);
4767 gtk_editable_claim_selection (editable, start_pos != end_pos, time);
4770 /**********************************************************************/
4772 /**********************************************************************/
4775 adjust_adj (GtkSText* text, GtkAdjustment* adj)
4779 gdk_window_get_size (text->text_area, NULL, &height);
4781 adj->step_increment = MIN (adj->upper, (float) SCROLL_PIXELS);
4782 adj->page_increment = MIN (adj->upper, height - (float) KEY_SCROLL_PIXELS);
4783 adj->page_size = MIN (adj->upper, height);
4784 adj->value = MIN (adj->value, adj->upper - adj->page_size);
4785 adj->value = MAX (adj->value, 0.0);
4787 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
4791 set_vertical_scroll_iterator (GtkSText* text, LineParams* lp, void* data)
4793 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4795 if ((text->first_line_start_index >= lp->start.index) &&
4796 (text->first_line_start_index <= lp->end.index))
4798 svdata->mark = lp->start;
4800 if (text->first_line_start_index == lp->start.index)
4802 text->first_onscreen_ver_pixel = svdata->pixel_height + text->first_cut_pixels;
4806 text->first_onscreen_ver_pixel = svdata->pixel_height;
4807 text->first_cut_pixels = 0;
4810 text->vadj->value = (float) text->first_onscreen_ver_pixel;
4813 svdata->pixel_height += LINE_HEIGHT (*lp);
4819 set_vertical_scroll_find_iterator (GtkSText* text, LineParams* lp, void* data)
4821 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4824 if (svdata->pixel_height <= (gint) text->vadj->value &&
4825 svdata->pixel_height + LINE_HEIGHT(*lp) > (gint) text->vadj->value)
4827 svdata->mark = lp->start;
4829 text->first_cut_pixels = (gint)text->vadj->value - svdata->pixel_height;
4830 text->first_onscreen_ver_pixel = svdata->pixel_height;
4831 text->first_line_start_index = lp->start.index;
4837 svdata->pixel_height += LINE_HEIGHT (*lp);
4845 static GtkSPropertyMark
4846 set_vertical_scroll (GtkSText* text)
4848 GtkSPropertyMark mark = find_mark (text, 0);
4849 SetVerticalScrollData data;
4853 data.pixel_height = 0;
4854 line_params_iterate (text, &mark, NULL, FALSE, &data, set_vertical_scroll_iterator);
4856 text->vadj->upper = (float) data.pixel_height;
4857 orig_value = (gint) text->vadj->value;
4859 gdk_window_get_size (text->text_area, NULL, &height);
4861 text->vadj->step_increment = MIN (text->vadj->upper, (float) SCROLL_PIXELS);
4862 text->vadj->page_increment = MIN (text->vadj->upper, height - (float) KEY_SCROLL_PIXELS);
4863 text->vadj->page_size = MIN (text->vadj->upper, height);
4864 text->vadj->value = MIN (text->vadj->value, text->vadj->upper - text->vadj->page_size);
4865 text->vadj->value = MAX (text->vadj->value, 0.0);
4867 text->last_ver_value = (gint)text->vadj->value;
4869 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "changed");
4871 if (text->vadj->value != orig_value)
4873 /* We got clipped, and don't really know which line to put first. */
4874 data.pixel_height = 0;
4875 data.last_didnt_wrap = TRUE;
4877 line_params_iterate (text, &mark, NULL,
4879 set_vertical_scroll_find_iterator);
4886 scroll_int (GtkSText* text, gint diff)
4890 text->vadj->value += diff;
4892 upper = text->vadj->upper - text->vadj->page_size;
4893 text->vadj->value = MIN (text->vadj->value, upper);
4894 text->vadj->value = MAX (text->vadj->value, 0.0);
4896 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "value_changed");
4900 process_exposes (GtkSText *text)
4904 /* Make sure graphics expose events are processed before scrolling
4907 while ((event = gdk_event_get_graphics_expose (text->text_area)) != NULL)
4909 gtk_widget_event (GTK_WIDGET (text), event);
4910 if (event->expose.count == 0)
4912 gdk_event_free (event);
4915 gdk_event_free (event);
4919 static gint last_visible_line_height (GtkSText* text)
4921 GList *cache = text->line_start_cache;
4924 gdk_window_get_size (text->text_area, NULL, &height);
4926 for (; cache->next; cache = cache->next)
4927 if (pixel_height_of(text, cache->next) > height)
4931 return pixel_height_of(text, cache) - 1;
4936 static gint first_visible_line_height (GtkSText* text)
4938 if (text->first_cut_pixels)
4939 return pixel_height_of(text, text->line_start_cache) + 1;
4945 scroll_down (GtkSText* text, gint diff0)
4951 text->first_onscreen_ver_pixel += diff0;
4955 if (text->first_cut_pixels < LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1)
4957 text->first_cut_pixels += 1;
4961 text->first_cut_pixels = 0;
4963 text->line_start_cache = text->line_start_cache->next;
4964 g_assert (text->line_start_cache);
4966 text->first_line_start_index =
4967 CACHE_DATA(text->line_start_cache).start.index;
4969 if (!text->line_start_cache->next)
4970 fetch_lines_forward (text, 1);
4976 gdk_window_get_size (text->text_area, &width, &height);
4977 if (height > real_diff)
4978 gdk_draw_pixmap (text->text_area,
4986 height - real_diff);
4989 rect.y = MAX (0, height - real_diff);
4991 rect.height = MIN (height, real_diff);
4993 expose_text (text, &rect, FALSE);
4994 gtk_stext_draw_focus ( (GtkWidget *) text);
4996 if (text->current_line)
5000 text->cursor_pos_y -= real_diff;
5001 cursor_min = drawn_cursor_min(text);
5004 find_mouse_cursor (text, text->cursor_pos_x,
5005 first_visible_line_height (text));
5008 if (height > real_diff)
5009 process_exposes (text);
5013 scroll_up (GtkSText* text, gint diff0)
5019 text->first_onscreen_ver_pixel += diff0;
5023 g_assert (text->line_start_cache);
5025 if (text->first_cut_pixels > 0)
5027 text->first_cut_pixels -= 1;
5031 if (!text->line_start_cache->prev)
5032 fetch_lines_backward (text);
5034 text->line_start_cache = text->line_start_cache->prev;
5036 text->first_line_start_index =
5037 CACHE_DATA(text->line_start_cache).start.index;
5039 text->first_cut_pixels = LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1;
5045 gdk_window_get_size (text->text_area, &width, &height);
5046 if (height > real_diff)
5047 gdk_draw_pixmap (text->text_area,
5055 height - real_diff);
5060 rect.height = MIN (height, real_diff);
5062 expose_text (text, &rect, FALSE);
5063 gtk_stext_draw_focus ( (GtkWidget *) text);
5065 if (text->current_line)
5070 text->cursor_pos_y += real_diff;
5071 cursor_max = drawn_cursor_max(text);
5072 gdk_window_get_size (text->text_area, NULL, &height);
5074 if (cursor_max >= height)
5075 find_mouse_cursor (text, text->cursor_pos_x,
5076 last_visible_line_height (text));
5079 if (height > real_diff)
5080 process_exposes (text);
5083 /**********************************************************************/
5085 /**********************************************************************/
5087 /* Assumes mark starts a line. Calculates the height, width, and
5088 * displayable character count of a single DISPLAYABLE line. That
5089 * means that in line-wrap mode, this does may not compute the
5090 * properties of an entire line. */
5092 find_line_params (GtkSText* text,
5093 const GtkSPropertyMark* mark,
5094 const PrevTabCont *tab_cont,
5095 PrevTabCont *next_cont)
5098 TabStopMark tab_mark = tab_cont->tab_start;
5099 guint max_display_pixels;
5104 gdk_window_get_size (text->text_area, (gint*) &max_display_pixels, NULL);
5106 if (text->wrap_rmargin) {
5107 /* SYLPHEED - since sylpheed is a mail program, assume we work with
5108 * fixed fonts. only assume we're using one font! */
5109 font = MARK_CURRENT_FONT(text, mark);
5111 /* SYLPHEED - ok for multi byte charsets to check for ASCII char?
5113 if (text->use_wchar)
5114 ch_width = gdk_char_width_wc(font, 'W');
5116 ch_width = gdk_char_width(font, 'W');
5118 /* SYLPHEED - max_display_chars has the rmargin in pixels
5120 max_display_pixels = text->wrap_rmargin * ch_width;
5123 /* SYLPHEED - we don't draw ugly word wrapping thing
5124 * if our wrap margin is set */
5125 if (!text->wrap_rmargin &&
5126 ((GTK_EDITABLE (text)->editable || !text->word_wrap)))
5127 max_display_pixels -= LINE_WRAP_ROOM;
5130 lp.tab_cont = *tab_cont;
5133 lp.pixel_width = tab_cont->pixel_offset;
5134 lp.displayable_chars = 0;
5136 lp.font_descent = 0;
5138 init_tab_cont (text, next_cont);
5140 while (!LAST_INDEX(text, lp.end))
5142 g_assert (lp.end.property);
5144 ch = GTK_STEXT_INDEX (text, lp.end.index);
5145 font = MARK_CURRENT_FONT (text, &lp.end);
5147 if (ch == LINE_DELIM)
5149 /* Newline doesn't count in computation of line height, even
5150 * if its in a bigger font than the rest of the line. Unless,
5151 * of course, there are no other characters. */
5153 if (!lp.font_ascent && !lp.font_descent)
5155 lp.font_ascent = font->ascent;
5156 lp.font_descent = font->descent;
5159 lp.tab_cont_next = *next_cont;
5164 ch_width = find_char_width (text, &lp.end, &tab_mark);
5166 if ((ch_width + lp.pixel_width > max_display_pixels) &&
5167 (lp.end.index > lp.start.index))
5171 if (text->line_wrap)
5173 next_cont->tab_start = tab_mark;
5174 next_cont->pixel_offset = 0;
5178 /* Here's the tough case, a tab is wrapping. */
5179 gint pixels_avail = max_display_pixels - lp.pixel_width;
5180 gint space_width = MARK_CURRENT_TEXT_FONT(text, &lp.end)->char_widths[' '];
5181 gint spaces_avail = pixels_avail / space_width;
5183 if (spaces_avail == 0)
5185 decrement_mark (&lp.end);
5189 advance_tab_mark (text, &next_cont->tab_start, '\t');
5190 next_cont->pixel_offset = space_width * (tab_mark.to_next_tab -
5192 lp.displayable_chars += 1;
5197 if (text->word_wrap)
5199 GtkSPropertyMark saved_mark = lp.end;
5200 guint saved_characters = lp.displayable_chars;
5202 lp.displayable_chars += 1;
5204 if (text->use_wchar)
5206 while (!gdk_iswspace (GTK_STEXT_INDEX (text, lp.end.index)) &&
5207 (lp.end.index > lp.start.index))
5209 decrement_mark (&lp.end);
5210 lp.displayable_chars -= 1;
5215 while (!isspace(GTK_STEXT_INDEX (text, lp.end.index)) &&
5216 (lp.end.index > lp.start.index))
5218 decrement_mark (&lp.end);
5219 lp.displayable_chars -= 1;
5223 /* If whole line is one word, revert to char wrapping */
5224 if (lp.end.index == lp.start.index)
5226 /* SYLPHEED: don't wrap URLs */
5227 if (gtkut_stext_is_uri_string(text, lp.end.index,
5228 gtk_stext_get_length(text)))
5230 lp.end = saved_mark;
5231 lp.displayable_chars = saved_characters + 1;
5236 lp.end = saved_mark;
5237 lp.displayable_chars = saved_characters;
5238 decrement_mark (&lp.end);
5243 /* Don't include this character, it will wrap. */
5244 decrement_mark (&lp.end);
5248 lp.tab_cont_next = *next_cont;
5255 lp.displayable_chars += 1;
5259 lp.font_ascent = MAX (font->ascent, lp.font_ascent);
5260 lp.font_descent = MAX (font->descent, lp.font_descent);
5261 lp.pixel_width += ch_width;
5263 advance_mark(&lp.end);
5264 advance_tab_mark (text, &tab_mark, ch);
5267 if (LAST_INDEX(text, lp.start))
5269 /* Special case, empty last line. */
5270 font = MARK_CURRENT_FONT (text, &lp.end);
5272 lp.font_ascent = font->ascent;
5273 lp.font_descent = font->descent;
5276 lp.tab_cont_next = *next_cont;
5282 expand_scratch_buffer (GtkSText* text, guint len)
5284 if (len >= text->scratch_buffer_len)
5288 while (i <= len && i < MIN_GAP_SIZE) i <<= 1;
5290 if (text->use_wchar)
5292 if (!text->scratch_buffer.wc)
5293 text->scratch_buffer.wc = g_new (GdkWChar, i);
5295 text->scratch_buffer.wc = g_realloc (text->scratch_buffer.wc,
5296 i * sizeof (GdkWChar));
5300 if (!text->scratch_buffer.ch)
5301 text->scratch_buffer.ch = g_new (guchar, i);
5303 text->scratch_buffer.ch = g_realloc (text->scratch_buffer.ch, i);
5306 text->scratch_buffer_len = i;
5310 /* Side effect: modifies text->gc
5314 draw_bg_rect (GtkSText* text, GtkSPropertyMark *mark,
5315 gint x, gint y, gint width, gint height,
5316 gboolean already_cleared)
5318 GtkEditable *editable = GTK_EDITABLE(text);
5320 if ((mark->index >= MIN(editable->selection_start_pos, editable->selection_end_pos) &&
5321 mark->index < MAX(editable->selection_start_pos, editable->selection_end_pos)))
5323 gtk_paint_flat_box(GTK_WIDGET(text)->style, text->text_area,
5324 editable->has_selection ?
5325 GTK_STATE_SELECTED : GTK_STATE_ACTIVE,
5327 NULL, GTK_WIDGET(text), "text",
5328 x, y, width, height);
5330 else if (!gdk_color_equal(MARK_CURRENT_BACK (text, mark),
5331 >K_WIDGET(text)->style->base[GTK_WIDGET_STATE (text)]))
5333 gdk_gc_set_foreground (text->gc, MARK_CURRENT_BACK (text, mark));
5335 gdk_draw_rectangle (text->text_area,
5337 TRUE, x, y, width, height);
5339 else if (GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL])
5346 rect.height = height;
5348 clear_area (text, &rect);
5350 else if (!already_cleared)
5351 gdk_window_clear_area (text->text_area, x, y, width, height);
5355 draw_line (GtkSText* text,
5356 gint pixel_start_height,
5359 GdkGCValues gc_values;
5362 guint running_offset = lp->tab_cont.pixel_offset;
5363 union { GdkWChar *wc; guchar *ch; } buffer;
5366 GtkEditable *editable = GTK_EDITABLE(text);
5368 guint selection_start_pos = MIN (editable->selection_start_pos, editable->selection_end_pos);
5369 guint selection_end_pos = MAX (editable->selection_start_pos, editable->selection_end_pos);
5371 GtkSPropertyMark mark = lp->start;
5372 TabStopMark tab_mark = lp->tab_cont.tab_start;
5373 gint pixel_height = pixel_start_height + lp->font_ascent;
5374 guint chars = lp->displayable_chars;
5376 /* First provide a contiguous segment of memory. This makes reading
5377 * the code below *much* easier, and only incurs the cost of copying
5378 * when the line being displayed spans the gap. */
5379 if (mark.index <= text->gap_position &&
5380 mark.index + chars > text->gap_position)
5382 expand_scratch_buffer (text, chars);
5384 if (text->use_wchar)
5386 for (i = 0; i < chars; i += 1)
5387 text->scratch_buffer.wc[i] = GTK_STEXT_INDEX(text, mark.index + i);
5388 buffer.wc = text->scratch_buffer.wc;
5392 for (i = 0; i < chars; i += 1)
5393 text->scratch_buffer.ch[i] = GTK_STEXT_INDEX(text, mark.index + i);
5394 buffer.ch = text->scratch_buffer.ch;
5399 if (text->use_wchar)
5401 if (mark.index >= text->gap_position)
5402 buffer.wc = text->text.wc + mark.index + text->gap_size;
5404 buffer.wc = text->text.wc + mark.index;
5408 if (mark.index >= text->gap_position)
5409 buffer.ch = text->text.ch + mark.index + text->gap_size;
5411 buffer.ch = text->text.ch + mark.index;
5416 if (running_offset > 0)
5418 draw_bg_rect (text, &mark, 0, pixel_start_height, running_offset,
5419 LINE_HEIGHT (*lp), TRUE);
5425 if ((text->use_wchar && buffer.wc[0] != '\t') ||
5426 (!text->use_wchar && buffer.ch[0] != '\t'))
5428 union { GdkWChar *wc; guchar *ch; } next_tab;
5433 if (text->use_wchar)
5434 for (i=0; i<chars; i++)
5436 if (buffer.wc[i] == '\t')
5438 next_tab.wc = buffer.wc + i;
5443 next_tab.ch = memchr (buffer.ch, '\t', chars);
5445 len = MIN (MARK_CURRENT_PROPERTY (&mark)->length - mark.offset, chars);
5447 if (text->use_wchar)
5450 len = MIN (len, next_tab.wc - buffer.wc);
5455 len = MIN (len, next_tab.ch - buffer.ch);
5458 if (mark.index < selection_start_pos)
5459 len = MIN (len, selection_start_pos - mark.index);
5460 else if (mark.index < selection_end_pos)
5461 len = MIN (len, selection_end_pos - mark.index);
5463 font = MARK_CURRENT_FONT (text, &mark);
5464 if (font->type == GDK_FONT_FONT)
5466 gdk_gc_set_font (text->gc, font);
5467 gdk_gc_get_values (text->gc, &gc_values);
5468 if (text->use_wchar)
5469 pixel_width = gdk_text_width_wc (gc_values.font,
5472 pixel_width = gdk_text_width (gc_values.font,
5477 if (text->use_wchar)
5478 pixel_width = gdk_text_width_wc (font, buffer.wc, len);
5480 pixel_width = gdk_text_width (font, buffer.ch, len);
5483 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
5484 pixel_width, LINE_HEIGHT (*lp), TRUE);
5486 if ((mark.index >= selection_start_pos) &&
5487 (mark.index < selection_end_pos))
5489 if (editable->has_selection)
5490 fg_gc = GTK_WIDGET(text)->style->fg_gc[GTK_STATE_SELECTED];
5492 fg_gc = GTK_WIDGET(text)->style->fg_gc[GTK_STATE_ACTIVE];
5496 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &mark));
5500 if (text->use_wchar)
5501 gdk_draw_text_wc (text->text_area, MARK_CURRENT_FONT (text, &mark),
5508 gdk_draw_text (text->text_area, MARK_CURRENT_FONT (text, &mark),
5515 running_offset += pixel_width;
5517 advance_tab_mark_n (text, &tab_mark, len);
5521 gint pixels_remaining;
5527 gdk_window_get_size (text->text_area, &pixels_remaining, NULL);
5528 if (GTK_EDITABLE (text)->editable || !text->word_wrap)
5529 pixels_remaining -= (LINE_WRAP_ROOM + running_offset);
5531 pixels_remaining -= running_offset;
5533 space_width = MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
5535 spaces_avail = pixels_remaining / space_width;
5536 spaces_avail = MIN (spaces_avail, tab_mark.to_next_tab);
5538 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
5539 spaces_avail * space_width, LINE_HEIGHT (*lp), TRUE);
5541 running_offset += tab_mark.to_next_tab *
5542 MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
5544 advance_tab_mark (text, &tab_mark, '\t');
5547 advance_mark_n (&mark, len);
5548 if (text->use_wchar)
5557 draw_line_wrap (GtkSText* text, guint height /* baseline height */)
5564 if (!GTK_EDITABLE (text)->editable && text->word_wrap)
5567 /* SYLPHEED - don't draw ugly word wrapping thing if
5568 * our wrap margin is set */
5569 if (text->wrap_rmargin > 0) {
5573 if (text->line_wrap)
5575 bitmap = text->line_wrap_bitmap;
5576 bitmap_width = line_wrap_width;
5577 bitmap_height = line_wrap_height;
5581 bitmap = text->line_arrow_bitmap;
5582 bitmap_width = line_arrow_width;
5583 bitmap_height = line_arrow_height;
5586 gdk_window_get_size (text->text_area, &width, NULL);
5587 width -= LINE_WRAP_ROOM;
5589 gdk_gc_set_stipple (text->gc,
5592 gdk_gc_set_fill (text->gc, GDK_STIPPLED);
5594 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5596 gdk_gc_set_ts_origin (text->gc,
5598 height - bitmap_height - 1);
5600 gdk_draw_rectangle (text->text_area,
5604 height - bitmap_height - 1 /* one pixel above the baseline. */,
5608 gdk_gc_set_ts_origin (text->gc, 0, 0);
5610 gdk_gc_set_fill (text->gc, GDK_SOLID);
5614 undraw_cursor (GtkSText* text, gint absolute)
5616 GtkEditable *editable = (GtkEditable *)text;
5618 TDEBUG (("in undraw_cursor\n"));
5621 text->cursor_drawn_level = 0;
5623 if ((text->cursor_drawn_level ++ == 0) &&
5624 (editable->selection_start_pos == editable->selection_end_pos) &&
5625 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5631 g_assert(text->cursor_mark.property);
5633 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5636 * changed the cursor to a real block (TM)
5638 if (text->cursor_type == GTK_STEXT_CURSOR_BLOCK)
5640 if (text->cursor_char)
5642 if (text->use_wchar)
5643 pixel_width = gdk_char_width_wc (font, text->cursor_char);
5645 pixel_width = gdk_char_width (font, (guchar)text->cursor_char);
5649 pixel_width = gdk_char_width (font, 'W');
5652 pixel_height = LINE_HEIGHT(CACHE_DATA(text->current_line));
5654 draw_bg_rect (text, &text->cursor_mark,
5656 text->cursor_pos_y - (pixel_height + 1),
5663 draw_bg_rect (text, &text->cursor_mark,
5665 text->cursor_pos_y - text->cursor_char_offset - font->ascent,
5666 2, font->descent + font->ascent + 1, FALSE);
5669 if (text->cursor_char)
5671 if (font->type == GDK_FONT_FONT)
5672 gdk_gc_set_font (text->gc, font);
5674 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &text->cursor_mark));
5676 if (text->use_wchar)
5677 gdk_draw_text_wc (text->text_area, font,
5680 text->cursor_pos_y - text->cursor_char_offset,
5685 guchar ch = text->cursor_char;
5686 gdk_draw_text (text->text_area, font,
5689 text->cursor_pos_y - text->cursor_char_offset,
5698 drawn_cursor_min (GtkSText* text)
5702 g_assert(text->cursor_mark.property);
5704 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5706 return text->cursor_pos_y - text->cursor_char_offset - font->ascent;
5710 drawn_cursor_max (GtkSText* text)
5714 g_assert(text->cursor_mark.property);
5716 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5718 return text->cursor_pos_y - text->cursor_char_offset;
5722 draw_cursor (GtkSText* text, gint absolute)
5724 GtkEditable *editable = (GtkEditable *)text;
5726 TDEBUG (("in draw_cursor\n"));
5729 text->cursor_drawn_level = 1;
5731 if ((--text->cursor_drawn_level == 0) &&
5732 editable->editable &&
5733 (editable->selection_start_pos == editable->selection_end_pos) &&
5734 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5740 g_assert (text->cursor_mark.property);
5742 font = MARK_CURRENT_FONT (text, &text->cursor_mark);
5745 * change the cursor to a real block (TM)
5747 if (text->cursor_type == GTK_STEXT_CURSOR_BLOCK)
5749 if (text->cursor_char)
5751 if (text->use_wchar)
5752 pixel_width = gdk_char_width_wc (font, text->cursor_char);
5754 pixel_width = gdk_char_width (font, (guchar)text->cursor_char);
5758 pixel_width = gdk_char_width (font, 'W');
5761 pixel_height = LINE_HEIGHT(CACHE_DATA(text->current_line));
5763 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5764 gdk_gc_set_function (text->gc, GDK_INVERT);
5765 gdk_draw_rectangle (text->text_area, text->gc, TRUE,
5767 text->cursor_pos_y - pixel_height,
5770 gdk_gc_set_function (text->gc, GDK_COPY);
5774 gdk_gc_set_line_attributes(text->gc, 2, GDK_LINE_SOLID, GDK_CAP_NOT_LAST, GDK_JOIN_MITER);
5775 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5777 gdk_draw_line (text->text_area, text->gc, text->cursor_pos_x + 1,
5778 text->cursor_pos_y + font->descent - text->cursor_char_offset,
5779 text->cursor_pos_x + 1,
5780 text->cursor_pos_y - text->cursor_char_offset - font->ascent);
5786 create_bg_gc (GtkSText *text)
5790 values.tile = GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL];
5791 values.fill = GDK_TILED;
5793 return gdk_gc_new_with_values (text->text_area, &values,
5794 GDK_GC_FILL | GDK_GC_TILE);
5798 clear_area (GtkSText *text, GdkRectangle *area)
5800 GtkWidget *widget = GTK_WIDGET (text);
5806 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
5808 gdk_gc_set_ts_origin (text->bg_gc,
5809 (- (gint)text->first_onscreen_hor_pixel) % width,
5810 (- (gint)text->first_onscreen_ver_pixel) % height);
5812 gdk_draw_rectangle (text->text_area, text->bg_gc, TRUE,
5813 area->x, area->y, area->width, area->height);
5816 gdk_window_clear_area (text->text_area, area->x, area->y, area->width, area->height);
5820 expose_text (GtkSText* text, GdkRectangle *area, gboolean cursor)
5822 GList *cache = text->line_start_cache;
5823 gint pixels = - text->first_cut_pixels;
5824 gint min_y = MAX (0, area->y);
5825 gint max_y = MAX (0, area->y + area->height);
5828 gdk_window_get_size (text->text_area, NULL, &height);
5829 max_y = MIN (max_y, height);
5831 TDEBUG (("in expose x=%d y=%d w=%d h=%d\n", area->x, area->y, area->width, area->height));
5833 clear_area (text, area);
5835 for (; pixels < height; cache = cache->next)
5837 if (pixels < max_y && (pixels + (gint)LINE_HEIGHT(CACHE_DATA(cache))) >= min_y)
5839 draw_line (text, pixels, &CACHE_DATA(cache));
5841 if (CACHE_DATA(cache).wraps)
5842 draw_line_wrap (text, pixels + CACHE_DATA(cache).font_ascent);
5845 if (cursor && GTK_WIDGET_HAS_FOCUS (text))
5847 if (CACHE_DATA(cache).start.index <= text->cursor_mark.index &&
5848 CACHE_DATA(cache).end.index >= text->cursor_mark.index)
5850 /* We undraw and draw the cursor here to get the drawn
5851 * level right ... FIXME - maybe the second parameter
5852 * of draw_cursor should work differently
5854 undraw_cursor (text, FALSE);
5855 draw_cursor (text, FALSE);
5859 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5863 fetch_lines_forward (text, 1);
5872 gtk_stext_update_text (GtkEditable *editable,
5876 GtkSText *text = GTK_STEXT (editable);
5878 GList *cache = text->line_start_cache;
5879 gint pixels = - text->first_cut_pixels;
5885 end_pos = TEXT_LENGTH (text);
5887 if (end_pos < start_pos)
5890 gdk_window_get_size (text->text_area, &width, &height);
5896 TDEBUG (("in expose span start=%d stop=%d\n", start_pos, end_pos));
5898 for (; pixels < height; cache = cache->next)
5900 if (CACHE_DATA(cache).start.index < end_pos)
5902 if (CACHE_DATA(cache).end.index >= start_pos)
5905 area.y = MAX(0,pixels);
5906 area.height = pixels + LINE_HEIGHT(CACHE_DATA(cache)) - area.y;
5912 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5916 fetch_lines_forward (text, 1);
5924 expose_text (text, &area, TRUE);
5928 recompute_geometry (GtkSText* text)
5930 GtkSPropertyMark mark, start_mark;
5937 mark = start_mark = set_vertical_scroll (text);
5939 /* We need a real start of a line when calling fetch_lines().
5940 * not the start of a wrapped line.
5942 while (mark.index > 0 &&
5943 GTK_STEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
5944 decrement_mark (&mark);
5946 gdk_window_get_size (text->text_area, &width, &height);
5948 /* Fetch an entire line, to make sure that we get all the text
5949 * we backed over above, in addition to enough text to fill up
5950 * the space vertically
5953 new_lines = fetch_lines (text,
5959 mark = CACHE_DATA (g_list_last (new_lines)).end;
5960 if (!LAST_INDEX (text, mark))
5962 advance_mark (&mark);
5964 new_lines = g_list_concat (new_lines,
5969 height + text->first_cut_pixels));
5972 /* Now work forward to the actual first onscreen line */
5974 while (CACHE_DATA (new_lines).start.index < start_mark.index)
5975 new_lines = new_lines->next;
5977 text->line_start_cache = new_lines;
5979 find_cursor (text, TRUE);
5982 /**********************************************************************/
5984 /**********************************************************************/
5987 gtk_stext_set_selection (GtkEditable *editable,
5991 GtkSText *text = GTK_STEXT (editable);
5993 guint start1, end1, start2, end2;
5996 end = TEXT_LENGTH (text);
5998 start1 = MIN(start,end);
5999 end1 = MAX(start,end);
6000 start2 = MIN(editable->selection_start_pos, editable->selection_end_pos);
6001 end2 = MAX(editable->selection_start_pos, editable->selection_end_pos);
6003 if (start2 < start1)
6007 tmp = start1; start1 = start2; start2 = tmp;
6008 tmp = end1; end1 = end2; end2 = tmp;
6011 undraw_cursor (text, FALSE);
6012 editable->selection_start_pos = start;
6013 editable->selection_end_pos = end;
6014 draw_cursor (text, FALSE);
6016 /* Expose only what changed */
6018 if (start1 < start2)
6019 gtk_stext_update_text (editable, start1, MIN(end1, start2));
6022 gtk_stext_update_text (editable, MAX(end1, start2), end2);
6023 else if (end2 < end1)
6024 gtk_stext_update_text (editable, end2, end1);
6033 stext_blink_timer_proc (GtkSText *text)
6035 if (text->cursor_state_on)
6037 text->cursor_state_on = FALSE;
6038 undraw_cursor (text, TRUE);
6039 /* kill this timer... */
6040 gtk_timeout_remove (text->cursor_timer_id);
6041 text->cursor_timer_id = gtk_timeout_add (text->cursor_off_ms,
6042 (GtkFunction) stext_blink_timer_proc,
6047 text->cursor_state_on = TRUE;
6048 draw_cursor (text, TRUE);
6049 /* kill this timer... */
6050 gtk_timeout_remove (text->cursor_timer_id);
6051 text->cursor_timer_id = gtk_timeout_add (text->cursor_on_ms,
6052 (GtkFunction) stext_blink_timer_proc,
6060 stext_idle_timer_proc (GtkSText *text)
6062 /* make sure the cursor timer is off */
6063 if (text->cursor_timer_id)
6065 gtk_timeout_remove (text->cursor_timer_id);
6066 text->cursor_timer_id = 0;
6069 /* assuming it's always on when calling this function ... */
6070 text->cursor_state_on = TRUE;
6071 text->cursor_timer_id = gtk_timeout_add (text->cursor_on_ms,
6072 (GtkFunction) stext_blink_timer_proc,
6074 /* make sure we kill the timer (could perhaps make this function return
6075 FALSE (not documented in the current docs). should check the source. */
6076 gtk_idle_remove (text->cursor_idle_time_timer_id);
6077 text->cursor_idle_time_timer_id = 0;
6083 gtk_stext_enable_blink (GtkSText *text)
6085 if (text->cursor_timer_on)
6087 gtk_stext_disable_blink (text);
6088 text->cursor_idle_time_timer_id = gtk_idle_add ((GtkFunction) stext_idle_timer_proc,
6094 gtk_stext_disable_blink (GtkSText *text)
6096 if (text->cursor_timer_on)
6098 if (text->cursor_idle_time_timer_id)
6100 gtk_idle_remove (text->cursor_idle_time_timer_id);
6101 text->cursor_idle_time_timer_id = 0;
6103 if (text->cursor_timer_id)
6105 gtk_timeout_remove (text->cursor_timer_id);
6106 text->cursor_timer_id = 0;
6108 draw_cursor(text, TRUE);
6113 gtk_stext_set_blink (GtkSText *text, gboolean blinking_on)
6115 if (text->cursor_timer_on != blinking_on)
6117 if (text->cursor_timer_on)
6119 /* text widget already created? */
6120 if (text->cursor_visible)
6122 gtk_stext_disable_blink (text);
6124 text->cursor_timer_on = FALSE;
6128 if (text->cursor_visible)
6130 gtk_stext_enable_blink (text);
6132 text->cursor_timer_on = TRUE;
6138 void gtk_stext_set_wrap_rmargin (GtkSText *text, gint rmargin)
6140 /* not particularly impressive, but it does the job. */
6141 /* TODO: currently only allowed to set this after a
6142 * gtk_stext_new() */
6143 text->wrap_rmargin = rmargin >= 0 ? rmargin : 0;
6146 /**********************************************************************/
6148 /**********************************************************************/
6150 #ifdef DEBUG_GTK_STEXT
6152 gtk_stext_show_cache_line (GtkSText *text, GList *cache,
6153 const char* what, const char* func, gint line)
6155 LineParams *lp = &CACHE_DATA(cache);
6158 if (cache == text->line_start_cache)
6159 g_message ("Line Start Cache: ");
6161 if (cache == text->current_line)
6162 g_message("Current Line: ");
6164 g_message ("%s:%d: cache line %s s=%d,e=%d,lh=%d (",
6172 for (i = lp->start.index; i < (lp->end.index + lp->wraps); i += 1)
6173 g_message ("%c", GTK_STEXT_INDEX (text, i));
6179 gtk_stext_show_cache (GtkSText *text, const char* func, gint line)
6181 GList *l = text->line_start_cache;
6187 /* back up to the absolute beginning of the line cache */
6191 g_message ("*** line cache ***\n");
6192 for (; l; l = l->next)
6193 gtk_stext_show_cache_line (text, l, "all", func, line);
6197 gtk_stext_assert_mark (GtkSText *text,
6198 GtkSPropertyMark *mark,
6199 GtkSPropertyMark *before,
6200 GtkSPropertyMark *after,
6205 GtkSPropertyMark correct_mark = find_mark (text, mark->index);
6207 if (mark->offset != correct_mark.offset ||
6208 mark->property != correct_mark.property)
6209 g_warning ("incorrect %s text property marker in %s:%d, index %d -- bad!", where, msg, line, mark->index);
6213 gtk_stext_assert (GtkSText *text,
6217 GList* cache = text->line_start_cache;
6218 GtkSPropertyMark* before_mark = NULL;
6219 GtkSPropertyMark* after_mark = NULL;
6221 gtk_stext_show_props (text, msg, line);
6223 for (; cache->prev; cache = cache->prev)
6226 g_message ("*** line markers ***\n");
6228 for (; cache; cache = cache->next)
6230 after_mark = &CACHE_DATA(cache).end;
6231 gtk_stext_assert_mark (text, &CACHE_DATA(cache).start, before_mark, after_mark, msg, "start", line);
6232 before_mark = &CACHE_DATA(cache).start;
6235 after_mark = &CACHE_DATA(cache->next).start;
6239 gtk_stext_assert_mark (text, &CACHE_DATA(cache).end, before_mark, after_mark, msg, "end", line);
6240 before_mark = &CACHE_DATA(cache).end;
6245 gtk_stext_show_adj (GtkSText *text,
6251 g_message ("*** adjustment ***\n");
6253 g_message ("%s:%d: %s adjustment l=%.1f u=%.1f v=%.1f si=%.1f pi=%.1f ps=%.1f\n",
6260 adj->step_increment,
6261 adj->page_increment,
6266 gtk_stext_show_props (GtkSText *text,
6270 GList* props = text->text_properties;
6273 g_message ("%s:%d: ", msg, line);
6275 for (; props; props = props->next)
6277 TextProperty *p = (TextProperty*)props->data;
6279 proplen += p->length;
6281 g_message ("[%d,%p,", p->length, p);
6282 if (p->flags & PROPERTY_FONT)
6283 g_message ("%p,", p->font);
6286 if (p->flags & PROPERTY_FOREGROUND)
6287 g_message ("%ld, ", p->fore_color.pixel);
6290 if (p->flags & PROPERTY_BACKGROUND)
6291 g_message ("%ld] ", p->back_color.pixel);
6298 if (proplen - 1 != TEXT_LENGTH(text))
6299 g_warning ("incorrect property list length in %s:%d -- bad!", msg, line);