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. 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>
51 * compile time settings
53 #define INITIAL_BUFFER_SIZE 1024
54 #define INITIAL_LINE_CACHE_SIZE 256
55 #define MIN_GAP_SIZE 256
58 * intending to introduce a paragraph delimiter '\r' because
59 * '\r' are being stripped by sylpheed
61 #define LINE_DELIM '\n'
62 #define MIN_TEXT_WIDTH_LINES 20
63 #define MIN_TEXT_HEIGHT_LINES 10
64 #define TEXT_BORDER_ROOM 1
65 #define LINE_WRAP_ROOM 8 /* The bitmaps are 6 wide. */
66 #define DEFAULT_TAB_STOP_WIDTH 4
67 #define SCROLL_PIXELS 5
68 #define KEY_SCROLL_PIXELS 10
69 #define SCROLL_TIME 100
70 #define FREEZE_LENGTH 1024
73 /* Freeze text when inserting or deleting more than this many characters */
76 * could also mark paragraphs using marks, but don't know anything yet
77 * about consistency when characters are removed
79 #define SET_PROPERTY_MARK(m, p, o) do { \
80 (m)->property = (p); \
83 #define MARK_CURRENT_PROPERTY(mark) ((TextProperty*)(mark)->property->data)
84 #define MARK_NEXT_PROPERTY(mark) ((TextProperty*)(mark)->property->next->data)
85 #define MARK_PREV_PROPERTY(mark) ((TextProperty*)((mark)->property->prev ? \
86 (mark)->property->prev->data \
88 #define MARK_PREV_LIST_PTR(mark) ((mark)->property->prev)
89 #define MARK_LIST_PTR(mark) ((mark)->property)
90 #define MARK_NEXT_LIST_PTR(mark) ((mark)->property->next)
91 #define MARK_OFFSET(mark) ((mark)->offset)
92 #define MARK_PROPERTY_LENGTH(mark) (MARK_CURRENT_PROPERTY(mark)->length)
95 #define MARK_CURRENT_FONT(text, mark) \
96 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
97 MARK_CURRENT_PROPERTY(mark)->font->gdk_font : \
98 GTK_WIDGET (text)->style->font)
99 #define MARK_CURRENT_FORE(text, mark) \
100 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FOREGROUND) ? \
101 &MARK_CURRENT_PROPERTY(mark)->fore_color : \
102 &((GtkWidget *)text)->style->text[((GtkWidget *)text)->state])
103 #define MARK_CURRENT_BACK(text, mark) \
104 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_BACKGROUND) ? \
105 &MARK_CURRENT_PROPERTY(mark)->back_color : \
106 &((GtkWidget *)text)->style->base[((GtkWidget *)text)->state])
107 #define MARK_CURRENT_TEXT_FONT(text, mark) \
108 ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \
109 MARK_CURRENT_PROPERTY(mark)->font : \
112 #define TEXT_LENGTH(t) ((t)->text_end - (t)->gap_size)
113 #define FONT_HEIGHT(f) ((f)->ascent + (f)->descent)
114 #define LINE_HEIGHT(l) ((l).font_ascent + (l).font_descent)
115 #define LINE_CONTAINS(l, i) ((l).start.index <= (i) && (l).end.index >= (i))
116 #define LINE_STARTS_AT(l, i) ((l).start.index == (i))
117 #define LINE_START_PIXEL(l) ((l).tab_cont.pixel_offset)
118 #define LAST_INDEX(t, m) ((m).index == TEXT_LENGTH(t))
119 #define CACHE_DATA(c) (*(LineParams*)(c)->data)
129 typedef struct _TextProperty TextProperty;
130 typedef struct _TabStopMark TabStopMark;
131 typedef struct _PrevTabCont PrevTabCont;
132 typedef struct _FetchLinesData FetchLinesData;
133 typedef struct _LineParams LineParams;
134 typedef struct _SetVerticalScrollData SetVerticalScrollData;
139 typedef gint (*LineIteratorFunction) (GtkSText* text, LineParams* lp, void* data);
147 struct _SetVerticalScrollData {
149 gint last_didnt_wrap;
150 gint last_line_start;
151 GtkSPropertyMark mark;
156 /* The actual font. */
160 gint16 char_widths[256];
164 PROPERTY_FONT = 1 << 0,
165 PROPERTY_FOREGROUND = 1 << 1,
166 PROPERTY_BACKGROUND = 1 << 2
174 /* Background Color. */
177 /* Foreground Color. */
180 /* Show which properties are set */
181 TextPropertyFlags flags;
183 /* Length of this property. */
189 GList* tab_stops; /* Index into list containing the next tab position. If
190 * NULL, using default widths. */
197 TabStopMark tab_start;
200 struct _FetchLinesData
213 guint displayable_chars;
216 PrevTabCont tab_cont;
217 PrevTabCont tab_cont_next;
219 GtkSPropertyMark start;
220 GtkSPropertyMark end;
224 static void gtk_stext_class_init (GtkSTextClass *klass);
225 static void gtk_stext_set_arg (GtkObject *object,
228 static void gtk_stext_get_arg (GtkObject *object,
231 static void gtk_stext_init (GtkSText *text);
232 static void gtk_stext_destroy (GtkObject *object);
233 static void gtk_stext_finalize (GtkObject *object);
234 static void gtk_stext_realize (GtkWidget *widget);
235 static void gtk_stext_unrealize (GtkWidget *widget);
236 static void gtk_stext_style_set (GtkWidget *widget,
237 GtkStyle *previous_style);
238 static void gtk_stext_state_changed (GtkWidget *widget,
239 GtkStateType previous_state);
240 static void gtk_stext_draw_focus (GtkWidget *widget);
241 static void gtk_stext_size_request (GtkWidget *widget,
242 GtkRequisition *requisition);
243 static void gtk_stext_size_allocate (GtkWidget *widget,
244 GtkAllocation *allocation);
245 static void gtk_stext_adjustment (GtkAdjustment *adjustment,
247 static void gtk_stext_disconnect (GtkAdjustment *adjustment,
250 static void gtk_stext_insert_text (GtkEditable *editable,
251 const gchar *new_text,
252 gint new_text_length,
254 static void gtk_stext_delete_text (GtkEditable *editable,
257 static void gtk_stext_update_text (GtkEditable *editable,
260 static gchar *gtk_stext_get_chars (GtkEditable *editable,
263 static void gtk_stext_set_selection (GtkEditable *editable,
266 static void gtk_stext_real_set_editable (GtkEditable *editable,
267 gboolean is_editable);
270 static void gtk_stext_draw (GtkWidget *widget,
272 static gint gtk_stext_expose (GtkWidget *widget,
273 GdkEventExpose *event);
274 static gint gtk_stext_button_press (GtkWidget *widget,
275 GdkEventButton *event);
276 static gint gtk_stext_button_release (GtkWidget *widget,
277 GdkEventButton *event);
278 static gint gtk_stext_motion_notify (GtkWidget *widget,
279 GdkEventMotion *event);
280 static gint gtk_stext_key_press (GtkWidget *widget,
282 static gint gtk_stext_focus_in (GtkWidget *widget,
283 GdkEventFocus *event);
284 static gint gtk_stext_focus_out (GtkWidget *widget,
285 GdkEventFocus *event);
287 static void move_gap (GtkSText* text, guint index);
288 static void make_forward_space (GtkSText* text, guint len);
290 /* Property management */
291 static GtkSTextFont* get_text_font (GdkFont* gfont);
292 static void text_font_unref (GtkSTextFont *text_font);
294 static void insert_text_property (GtkSText* text, GdkFont* font,
295 GdkColor *fore, GdkColor* back, guint len);
296 static TextProperty* new_text_property (GtkSText *text, GdkFont* font,
297 GdkColor* fore, GdkColor* back, guint length);
298 static void destroy_text_property (TextProperty *prop);
299 static void init_properties (GtkSText *text);
300 static void realize_property (GtkSText *text, TextProperty *prop);
301 static void realize_properties (GtkSText *text);
302 static void unrealize_property (GtkSText *text, TextProperty *prop);
303 static void unrealize_properties (GtkSText *text);
305 static void delete_text_property (GtkSText* text, guint len);
307 static guint pixel_height_of (GtkSText* text, GList* cache_line);
309 /* Property Movement and Size Computations */
310 static void advance_mark (GtkSPropertyMark* mark);
311 static void decrement_mark (GtkSPropertyMark* mark);
312 static void advance_mark_n (GtkSPropertyMark* mark, gint n);
313 static void decrement_mark_n (GtkSPropertyMark* mark, gint n);
314 static void move_mark_n (GtkSPropertyMark* mark, gint n);
315 static GtkSPropertyMark find_mark (GtkSText* text, guint mark_position);
316 static GtkSPropertyMark find_mark_near (GtkSText* text, guint mark_position, const GtkSPropertyMark* near);
317 static void find_line_containing_point (GtkSText* text, guint point,
321 static void compute_lines_pixels (GtkSText* text, guint char_count,
322 guint *lines, guint *pixels);
324 static gint total_line_height (GtkSText* text,
327 static LineParams find_line_params (GtkSText* text,
328 const GtkSPropertyMark *mark,
329 const PrevTabCont *tab_cont,
330 PrevTabCont *next_cont);
331 static void recompute_geometry (GtkSText* text);
332 static void insert_expose (GtkSText* text, guint old_pixels, gint nchars, guint new_line_count);
333 static void delete_expose (GtkSText* text,
337 static GdkGC *create_bg_gc (GtkSText *text);
338 static void clear_area (GtkSText *text, GdkRectangle *area);
339 static void draw_line (GtkSText* text,
342 static void draw_line_wrap (GtkSText* text,
344 static void draw_cursor (GtkSText* text, gint absolute);
345 static void undraw_cursor (GtkSText* text, gint absolute);
346 static gint drawn_cursor_min (GtkSText* text);
347 static gint drawn_cursor_max (GtkSText* text);
348 static void expose_text (GtkSText* text, GdkRectangle *area, gboolean cursor);
350 /* Search and Placement. */
351 static void find_cursor (GtkSText* text,
353 static void find_cursor_at_line (GtkSText* text,
354 const LineParams* start_line,
356 static void find_mouse_cursor (GtkSText* text, gint x, gint y);
359 static void adjust_adj (GtkSText* text, GtkAdjustment* adj);
360 static void scroll_up (GtkSText* text, gint diff);
361 static void scroll_down (GtkSText* text, gint diff);
362 static void scroll_int (GtkSText* text, gint diff);
364 static void process_exposes (GtkSText *text);
366 /* Cache Management. */
367 static void free_cache (GtkSText* text);
368 static GList* remove_cache_line (GtkSText* text, GList* list);
371 static void move_cursor_buffer_ver (GtkSText *text, int dir);
372 static void move_cursor_page_ver (GtkSText *text, int dir);
373 static void move_cursor_ver (GtkSText *text, int count);
374 static void move_cursor_hor (GtkSText *text, int count);
378 static void move_cursor_to_display_row_end (GtkSText *text);
379 static void move_cursor_to_display_row_start (GtkSText *text);
380 static void move_cursor_to_display_row_up (GtkSText *text);
381 static void move_cursor_to_display_row_down (GtkSText *text);
382 static void reset_persist_col_pos (GtkSText *text);
384 /* Binding actions */
385 static void gtk_stext_move_cursor (GtkEditable *editable,
388 static void gtk_stext_move_word (GtkEditable *editable,
390 static void gtk_stext_move_page (GtkEditable *editable,
393 static void gtk_stext_move_to_row (GtkEditable *editable,
395 static void gtk_stext_move_to_column (GtkEditable *editable,
397 static void gtk_stext_kill_char (GtkEditable *editable,
399 static void gtk_stext_kill_word (GtkEditable *editable,
401 static void gtk_stext_kill_line (GtkEditable *editable,
405 static void gtk_stext_move_forward_character (GtkSText *text);
406 static void gtk_stext_move_backward_character (GtkSText *text);
407 static void gtk_stext_move_forward_word (GtkSText *text);
408 static void gtk_stext_move_backward_word (GtkSText *text);
409 static void gtk_stext_move_beginning_of_line (GtkSText *text);
410 static void gtk_stext_move_end_of_line (GtkSText *text);
411 static void gtk_stext_move_next_line (GtkSText *text);
412 static void gtk_stext_move_previous_line (GtkSText *text);
414 static void gtk_stext_delete_forward_character (GtkSText *text);
415 static void gtk_stext_delete_backward_character (GtkSText *text);
416 static void gtk_stext_delete_forward_word (GtkSText *text);
417 static void gtk_stext_delete_backward_word (GtkSText *text);
418 static void gtk_stext_delete_line (GtkSText *text);
419 static void gtk_stext_delete_to_line_end (GtkSText *text);
420 static void gtk_stext_select_word (GtkSText *text,
422 static void gtk_stext_select_line (GtkSText *text,
425 static void gtk_stext_set_position (GtkEditable *editable,
432 static void gtk_stext_enable_blink (GtkSText *text);
433 static void gtk_stext_disable_blink (GtkSText *text);
435 /* #define DEBUG_GTK_STEXT */
437 #if defined(DEBUG_GTK_STEXT) && defined(__GNUC__)
438 /* Debugging utilities. */
439 static void gtk_stext_assert_mark (GtkSText *text,
440 GtkSPropertyMark *mark,
441 GtkSPropertyMark *before,
442 GtkSPropertyMark *after,
447 static void gtk_stext_assert (GtkSText *text,
450 static void gtk_stext_show_cache_line (GtkSText *text, GList *cache,
451 const char* what, const char* func, gint line);
452 static void gtk_stext_show_cache (GtkSText *text, const char* func, gint line);
453 static void gtk_stext_show_adj (GtkSText *text,
458 static void gtk_stext_show_props (GtkSText* test,
462 #define TDEBUG(args) g_message args
463 #define TEXT_ASSERT(text) gtk_stext_assert (text,__PRETTY_FUNCTION__,__LINE__)
464 #define TEXT_ASSERT_MARK(text,mark,msg) gtk_stext_assert_mark (text,mark, \
465 __PRETTY_FUNCTION__,msg,__LINE__)
466 #define TEXT_SHOW(text) gtk_stext_show_cache (text, __PRETTY_FUNCTION__,__LINE__)
467 #define TEXT_SHOW_LINE(text,line,msg) gtk_stext_show_cache_line (text,line,msg,\
468 __PRETTY_FUNCTION__,__LINE__)
469 #define TEXT_SHOW_ADJ(text,adj,msg) gtk_stext_show_adj (text,adj,msg, \
470 __PRETTY_FUNCTION__,__LINE__)
473 #define TEXT_ASSERT(text)
474 #define TEXT_ASSERT_MARK(text,mark,msg)
475 #define TEXT_SHOW(text)
476 #define TEXT_SHOW_LINE(text,line,msg)
477 #define TEXT_SHOW_ADJ(text,adj,msg)
481 #if defined(AHX_DEBUG)
482 # define XDEBUG(args) g_message args
484 # define XDEBUG(args)
485 #endif /* AHX_DEBUG */
487 /* Memory Management. */
488 static GMemChunk *params_mem_chunk = NULL;
489 static GMemChunk *text_property_chunk = NULL;
491 static GtkWidgetClass *parent_class = NULL;
494 static const GtkTextFunction control_keys[26] =
496 (GtkTextFunction)gtk_stext_move_beginning_of_line, /* a */
497 (GtkTextFunction)gtk_stext_move_backward_character, /* b */
498 (GtkTextFunction)gtk_editable_copy_clipboard, /* c */
499 (GtkTextFunction)gtk_stext_delete_forward_character, /* d */
500 (GtkTextFunction)gtk_stext_move_end_of_line, /* e */
501 (GtkTextFunction)gtk_stext_move_forward_character, /* f */
503 (GtkTextFunction)gtk_stext_delete_backward_character, /* h */
506 (GtkTextFunction)gtk_stext_delete_to_line_end, /* k */
509 (GtkTextFunction)gtk_stext_move_next_line, /* n */
511 (GtkTextFunction)gtk_stext_move_previous_line, /* p */
516 (GtkTextFunction)gtk_stext_delete_line, /* u */
517 (GtkTextFunction)gtk_editable_paste_clipboard, /* v */
518 (GtkTextFunction)gtk_stext_delete_backward_word, /* w */
519 (GtkTextFunction)gtk_editable_cut_clipboard, /* x */
524 static const GtkTextFunction alt_keys[26] =
527 (GtkTextFunction)gtk_stext_move_backward_word, /* b */
529 (GtkTextFunction)gtk_stext_delete_forward_word, /* d */
531 (GtkTextFunction)gtk_stext_move_forward_word, /* f */
556 #define line_arrow_width 6
557 #define line_arrow_height 9
558 static unsigned char line_arrow_bits[] = {
559 0x00, 0x00, 0x04, 0x0c, 0x18, 0x3f, 0x18, 0x0c, 0x04};
562 #define line_wrap_width 6
563 #define line_wrap_height 9
564 static unsigned char line_wrap_bits[] = {
565 0x1e, 0x3e, 0x30, 0x30, 0x39, 0x1f, 0x0f, 0x0f, 0x1f, };
567 /**********************************************************************/
569 /**********************************************************************/
572 gtk_stext_get_type (void)
574 static GtkType text_type = 0;
578 static const GtkTypeInfo text_info =
582 sizeof (GtkSTextClass),
583 (GtkClassInitFunc) gtk_stext_class_init,
584 (GtkObjectInitFunc) gtk_stext_init,
585 /* reserved_1 */ NULL,
586 /* reserved_2 */ NULL,
587 (GtkClassInitFunc) NULL,
590 text_type = gtk_type_unique (GTK_TYPE_EDITABLE, &text_info);
597 gtk_stext_class_init (GtkSTextClass *class)
599 GtkObjectClass *object_class;
600 GtkWidgetClass *widget_class;
601 GtkEditableClass *editable_class;
603 object_class = (GtkObjectClass*) class;
604 widget_class = (GtkWidgetClass*) class;
605 editable_class = (GtkEditableClass*) class;
606 parent_class = gtk_type_class (GTK_TYPE_EDITABLE);
608 gtk_object_add_arg_type ("GtkSText::hadjustment",
610 GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
612 gtk_object_add_arg_type ("GtkSText::vadjustment",
614 GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
616 gtk_object_add_arg_type ("GtkSText::line_wrap",
620 gtk_object_add_arg_type ("GtkSText::word_wrap",
625 object_class->set_arg = gtk_stext_set_arg;
626 object_class->get_arg = gtk_stext_get_arg;
627 object_class->destroy = gtk_stext_destroy;
628 object_class->finalize = gtk_stext_finalize;
630 widget_class->realize = gtk_stext_realize;
631 widget_class->unrealize = gtk_stext_unrealize;
632 widget_class->style_set = gtk_stext_style_set;
633 widget_class->state_changed = gtk_stext_state_changed;
634 widget_class->draw_focus = gtk_stext_draw_focus;
635 widget_class->size_request = gtk_stext_size_request;
636 widget_class->size_allocate = gtk_stext_size_allocate;
637 widget_class->draw = gtk_stext_draw;
638 widget_class->expose_event = gtk_stext_expose;
639 widget_class->button_press_event = gtk_stext_button_press;
640 widget_class->button_release_event = gtk_stext_button_release;
641 widget_class->motion_notify_event = gtk_stext_motion_notify;
642 widget_class->key_press_event = gtk_stext_key_press;
643 widget_class->focus_in_event = gtk_stext_focus_in;
644 widget_class->focus_out_event = gtk_stext_focus_out;
646 widget_class->set_scroll_adjustments_signal =
647 gtk_signal_new ("set_scroll_adjustments",
650 GTK_SIGNAL_OFFSET (GtkSTextClass, set_scroll_adjustments),
651 gtk_marshal_NONE__POINTER_POINTER,
652 GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
654 editable_class->set_editable = gtk_stext_real_set_editable;
655 editable_class->insert_text = gtk_stext_insert_text;
656 editable_class->delete_text = gtk_stext_delete_text;
658 editable_class->move_cursor = gtk_stext_move_cursor;
659 editable_class->move_word = gtk_stext_move_word;
660 editable_class->move_page = gtk_stext_move_page;
661 editable_class->move_to_row = gtk_stext_move_to_row;
662 editable_class->move_to_column = gtk_stext_move_to_column;
664 editable_class->kill_char = gtk_stext_kill_char;
665 editable_class->kill_word = gtk_stext_kill_word;
666 editable_class->kill_line = gtk_stext_kill_line;
668 editable_class->update_text = gtk_stext_update_text;
669 editable_class->get_chars = gtk_stext_get_chars;
670 editable_class->set_selection = gtk_stext_set_selection;
671 editable_class->set_position = gtk_stext_set_position;
673 class->set_scroll_adjustments = gtk_stext_set_adjustments;
677 gtk_stext_set_arg (GtkObject *object,
683 text = GTK_STEXT (object);
687 case ARG_HADJUSTMENT:
688 gtk_stext_set_adjustments (text,
689 GTK_VALUE_POINTER (*arg),
692 case ARG_VADJUSTMENT:
693 gtk_stext_set_adjustments (text,
695 GTK_VALUE_POINTER (*arg));
698 gtk_stext_set_line_wrap (text, GTK_VALUE_BOOL (*arg));
701 gtk_stext_set_word_wrap (text, GTK_VALUE_BOOL (*arg));
709 gtk_stext_get_arg (GtkObject *object,
715 text = GTK_STEXT (object);
719 case ARG_HADJUSTMENT:
720 GTK_VALUE_POINTER (*arg) = text->hadj;
722 case ARG_VADJUSTMENT:
723 GTK_VALUE_POINTER (*arg) = text->vadj;
726 GTK_VALUE_BOOL (*arg) = text->line_wrap;
729 GTK_VALUE_BOOL (*arg) = text->word_wrap;
732 arg->type = GTK_TYPE_INVALID;
738 gtk_stext_init (GtkSText *text)
740 GTK_WIDGET_SET_FLAGS (text, GTK_CAN_FOCUS);
742 text->text_area = NULL;
747 text->line_wrap_bitmap = NULL;
748 text->line_arrow_bitmap = NULL;
750 text->use_wchar = FALSE;
751 text->text.ch = g_new (guchar, INITIAL_BUFFER_SIZE);
752 text->text_len = INITIAL_BUFFER_SIZE;
754 text->scratch_buffer.ch = NULL;
755 text->scratch_buffer_len = 0;
757 text->freeze_count = 0;
759 if (!params_mem_chunk)
760 params_mem_chunk = g_mem_chunk_new ("LineParams",
762 256 * sizeof (LineParams),
765 text->default_tab_width = 4;
766 text->tab_stops = NULL;
768 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
769 text->tab_stops = g_list_prepend (text->tab_stops, (void*)8);
771 text->line_start_cache = NULL;
772 text->first_cut_pixels = 0;
774 text->line_wrap = TRUE;
775 text->word_wrap = FALSE;
780 text->current_font = NULL;
783 * timer for blinking cursor
785 text->cursor_visible = FALSE; /* don't know whether gtktext stores this somewhere */
786 text->cursor_timer_on = TRUE;
787 text->cursor_off_ms = 500;
788 text->cursor_on_ms = 500;
789 text->cursor_timer_id = 0;
790 text->cursor_idle_time_timer_id = 0;
791 text->wrap_rmargin = 0;
792 text->cursor_type = STEXT_CURSOR_LINE;
793 text->persist_column = 0;
795 init_properties (text);
797 GTK_EDITABLE (text)->editable = FALSE;
799 gtk_editable_set_position (GTK_EDITABLE (text), 0);
803 gtk_stext_new (GtkAdjustment *hadj,
809 g_return_val_if_fail (GTK_IS_ADJUSTMENT (hadj), NULL);
811 g_return_val_if_fail (GTK_IS_ADJUSTMENT (vadj), NULL);
813 text = gtk_widget_new (GTK_TYPE_STEXT,
819 * force widget name to be GtkText so it silently adapts
820 * the GtkText widget's style...
822 gtk_widget_set_name(text, "GtkText");
823 gtk_widget_ensure_style(text);
829 gtk_stext_set_word_wrap (GtkSText *text,
832 g_return_if_fail (text != NULL);
833 g_return_if_fail (GTK_IS_STEXT (text));
835 text->word_wrap = (word_wrap != FALSE);
837 if (GTK_WIDGET_REALIZED (text))
839 recompute_geometry (text);
840 gtk_widget_queue_draw (GTK_WIDGET (text));
845 gtk_stext_set_line_wrap (GtkSText *text,
848 g_return_if_fail (text != NULL);
849 g_return_if_fail (GTK_IS_STEXT (text));
851 text->line_wrap = (line_wrap != FALSE);
853 if (GTK_WIDGET_REALIZED (text))
855 recompute_geometry (text);
856 gtk_widget_queue_draw (GTK_WIDGET (text));
861 gtk_stext_set_editable (GtkSText *text,
862 gboolean is_editable)
864 g_return_if_fail (text != NULL);
865 g_return_if_fail (GTK_IS_STEXT (text));
867 gtk_editable_set_editable (GTK_EDITABLE (text), is_editable);
871 gtk_stext_real_set_editable (GtkEditable *editable,
872 gboolean is_editable)
876 g_return_if_fail (editable != NULL);
877 g_return_if_fail (GTK_IS_STEXT (editable));
879 text = GTK_STEXT (editable);
881 editable->editable = (is_editable != FALSE);
883 if (GTK_WIDGET_REALIZED (text))
885 recompute_geometry (text);
886 gtk_widget_queue_draw (GTK_WIDGET (text));
891 gtk_stext_set_adjustments (GtkSText *text,
895 g_return_if_fail (text != NULL);
896 g_return_if_fail (GTK_IS_STEXT (text));
898 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
900 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
902 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
904 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
906 if (text->hadj && (text->hadj != hadj))
908 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
909 gtk_object_unref (GTK_OBJECT (text->hadj));
912 if (text->vadj && (text->vadj != vadj))
914 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
915 gtk_object_unref (GTK_OBJECT (text->vadj));
918 if (text->hadj != hadj)
921 gtk_object_ref (GTK_OBJECT (text->hadj));
922 gtk_object_sink (GTK_OBJECT (text->hadj));
924 gtk_signal_connect (GTK_OBJECT (text->hadj), "changed",
925 (GtkSignalFunc) gtk_stext_adjustment,
927 gtk_signal_connect (GTK_OBJECT (text->hadj), "value_changed",
928 (GtkSignalFunc) gtk_stext_adjustment,
930 gtk_signal_connect (GTK_OBJECT (text->hadj), "disconnect",
931 (GtkSignalFunc) gtk_stext_disconnect,
933 gtk_stext_adjustment (hadj, text);
936 if (text->vadj != vadj)
939 gtk_object_ref (GTK_OBJECT (text->vadj));
940 gtk_object_sink (GTK_OBJECT (text->vadj));
942 gtk_signal_connect (GTK_OBJECT (text->vadj), "changed",
943 (GtkSignalFunc) gtk_stext_adjustment,
945 gtk_signal_connect (GTK_OBJECT (text->vadj), "value_changed",
946 (GtkSignalFunc) gtk_stext_adjustment,
948 gtk_signal_connect (GTK_OBJECT (text->vadj), "disconnect",
949 (GtkSignalFunc) gtk_stext_disconnect,
951 gtk_stext_adjustment (vadj, text);
956 gtk_stext_set_point (GtkSText *text,
959 g_return_if_fail (text != NULL);
960 g_return_if_fail (GTK_IS_STEXT (text));
961 g_return_if_fail (index <= TEXT_LENGTH (text));
963 text->point = find_mark (text, index);
967 gtk_stext_get_point (GtkSText *text)
969 g_return_val_if_fail (text != NULL, 0);
970 g_return_val_if_fail (GTK_IS_STEXT (text), 0);
972 return text->point.index;
976 gtk_stext_get_length (GtkSText *text)
978 g_return_val_if_fail (text != NULL, 0);
979 g_return_val_if_fail (GTK_IS_STEXT (text), 0);
981 return TEXT_LENGTH (text);
985 gtk_stext_freeze (GtkSText *text)
987 g_return_if_fail (text != NULL);
988 g_return_if_fail (GTK_IS_STEXT (text));
990 text->freeze_count++;
991 undraw_cursor (text, FALSE);
995 gtk_stext_thaw (GtkSText *text)
997 g_return_if_fail (text != NULL);
998 g_return_if_fail (GTK_IS_STEXT (text));
1000 if (text->freeze_count)
1001 if (!(--text->freeze_count) && GTK_WIDGET_REALIZED (text))
1003 recompute_geometry (text);
1004 gtk_widget_queue_draw (GTK_WIDGET (text));
1006 draw_cursor (text, FALSE);
1011 gtk_stext_compact_buffer (GtkSText *text)
1013 g_return_if_fail (text != NULL);
1014 g_return_if_fail (GTK_IS_STEXT (text));
1015 move_gap (text, gtk_stext_get_length(text));
1019 gtk_stext_insert (GtkSText *text,
1026 GtkEditable *editable = GTK_EDITABLE (text);
1027 gboolean frozen = FALSE;
1029 gint new_line_count = 1;
1030 guint old_height = 0;
1035 g_return_if_fail (text != NULL);
1036 g_return_if_fail (GTK_IS_STEXT (text));
1038 g_return_if_fail (chars != NULL);
1041 if (!nchars || !chars)
1043 nchars = strlen (chars);
1047 if (!text->freeze_count && (length > FREEZE_LENGTH))
1049 gtk_stext_freeze (text);
1053 if (!text->freeze_count && (text->line_start_cache != NULL))
1055 find_line_containing_point (text, text->point.index, TRUE);
1056 old_height = total_line_height (text, text->current_line, 1);
1059 if ((TEXT_LENGTH (text) == 0) && (text->use_wchar == FALSE))
1062 widget = GTK_WIDGET (text);
1063 gtk_widget_ensure_style (widget);
1064 if ((widget->style) && (widget->style->font->type == GDK_FONT_FONTSET))
1066 text->use_wchar = TRUE;
1067 g_free (text->text.ch);
1068 text->text.wc = g_new (GdkWChar, INITIAL_BUFFER_SIZE);
1069 text->text_len = INITIAL_BUFFER_SIZE;
1070 if (text->scratch_buffer.ch)
1071 g_free (text->scratch_buffer.ch);
1072 text->scratch_buffer.wc = NULL;
1073 text->scratch_buffer_len = 0;
1077 move_gap (text, text->point.index);
1078 make_forward_space (text, length);
1080 if (text->use_wchar)
1082 char *chars_nt = (char *)chars;
1085 chars_nt = g_new (char, length+1);
1086 memcpy (chars_nt, chars, length);
1087 chars_nt[length] = 0;
1089 numwcs = gdk_mbstowcs (text->text.wc + text->gap_position, chars_nt,
1091 if (chars_nt != chars)
1099 memcpy(text->text.ch + text->gap_position, chars, length);
1102 if (!text->freeze_count && (text->line_start_cache != NULL))
1104 if (text->use_wchar)
1106 for (i=0; i<numwcs; i++)
1107 if (text->text.wc[text->gap_position + i] == '\n')
1112 for (i=0; i<numwcs; i++)
1113 if (text->text.ch[text->gap_position + i] == '\n')
1120 insert_text_property (text, font, fore, back, numwcs);
1122 text->gap_size -= numwcs;
1123 text->gap_position += numwcs;
1125 if (text->point.index < text->first_line_start_index)
1126 text->first_line_start_index += numwcs;
1127 if (text->point.index < editable->selection_start_pos)
1128 editable->selection_start_pos += numwcs;
1129 if (text->point.index < editable->selection_end_pos)
1130 editable->selection_end_pos += numwcs;
1131 /* We'll reset the cursor later anyways if we aren't frozen */
1132 if (text->point.index < text->cursor_mark.index)
1133 text->cursor_mark.index += numwcs;
1135 advance_mark_n (&text->point, numwcs);
1137 if (!text->freeze_count && (text->line_start_cache != NULL))
1138 insert_expose (text, old_height, numwcs, new_line_count);
1142 gtk_stext_thaw (text);
1146 gtk_stext_backward_delete (GtkSText *text,
1149 g_return_val_if_fail (text != NULL, 0);
1150 g_return_val_if_fail (GTK_IS_STEXT (text), 0);
1152 if (nchars > text->point.index || nchars <= 0)
1155 gtk_stext_set_point (text, text->point.index - nchars);
1157 return gtk_stext_forward_delete (text, nchars);
1161 gtk_stext_forward_delete (GtkSText *text,
1164 guint old_lines, old_height;
1165 GtkEditable *editable = GTK_EDITABLE (text);
1166 gboolean frozen = FALSE;
1168 g_return_val_if_fail (text != NULL, 0);
1169 g_return_val_if_fail (GTK_IS_STEXT (text), 0);
1171 if (text->point.index + nchars > TEXT_LENGTH (text) || nchars <= 0)
1174 if (!text->freeze_count && nchars > FREEZE_LENGTH)
1176 gtk_stext_freeze (text);
1180 if (!text->freeze_count && text->line_start_cache != NULL)
1182 /* We need to undraw the cursor here, since we may later
1183 * delete the cursor's property
1185 undraw_cursor (text, FALSE);
1186 find_line_containing_point (text, text->point.index, TRUE);
1187 compute_lines_pixels (text, nchars, &old_lines, &old_height);
1190 /* FIXME, or resizing after deleting will be odd */
1191 if (text->point.index < text->first_line_start_index)
1193 if (text->point.index + nchars >= text->first_line_start_index)
1195 text->first_line_start_index = text->point.index;
1196 while ((text->first_line_start_index > 0) &&
1197 (GTK_STEXT_INDEX (text, text->first_line_start_index - 1)
1199 text->first_line_start_index -= 1;
1203 text->first_line_start_index -= nchars;
1206 if (text->point.index < editable->selection_start_pos)
1207 editable->selection_start_pos -=
1208 MIN(nchars, editable->selection_start_pos - text->point.index);
1209 if (text->point.index < editable->selection_end_pos)
1210 editable->selection_end_pos -=
1211 MIN(nchars, editable->selection_end_pos - text->point.index);
1212 /* We'll reset the cursor later anyways if we aren't frozen */
1213 if (text->point.index < text->cursor_mark.index)
1214 move_mark_n (&text->cursor_mark,
1215 -MIN(nchars, text->cursor_mark.index - text->point.index));
1217 move_gap (text, text->point.index);
1219 text->gap_size += nchars;
1221 delete_text_property (text, nchars);
1223 if (!text->freeze_count && (text->line_start_cache != NULL))
1225 delete_expose (text, nchars, old_lines, old_height);
1226 draw_cursor (text, FALSE);
1230 gtk_stext_thaw (text);
1236 gtk_stext_set_position (GtkEditable *editable,
1239 GtkSText *text = (GtkSText *) editable;
1241 undraw_cursor (text, FALSE);
1242 text->cursor_mark = find_mark (text, position);
1243 find_cursor (text, TRUE);
1244 draw_cursor (text, FALSE);
1245 gtk_editable_select_region (editable, 0, 0);
1248 /* SYLPHEED - set_position used. Need to find out whether there's
1249 * a better way to handle this */
1250 static void gtk_stext_set_position_X (GtkEditable *editable,
1253 GtkSText *text = (GtkSText *) editable;
1255 undraw_cursor (text, FALSE);
1256 text->cursor_mark = find_mark (text, position);
1257 find_cursor (text, TRUE);
1258 draw_cursor (text, FALSE);
1262 gtk_stext_get_chars (GtkEditable *editable,
1270 g_return_val_if_fail (editable != NULL, NULL);
1271 g_return_val_if_fail (GTK_IS_STEXT (editable), NULL);
1272 text = GTK_STEXT (editable);
1275 end_pos = TEXT_LENGTH (text);
1277 if ((start_pos < 0) ||
1278 (end_pos > TEXT_LENGTH (text)) ||
1279 (end_pos < start_pos))
1282 move_gap (text, TEXT_LENGTH (text));
1283 make_forward_space (text, 1);
1285 if (text->use_wchar)
1288 ch = text->text.wc[end_pos];
1289 text->text.wc[end_pos] = 0;
1290 retval = gdk_wcstombs (text->text.wc + start_pos);
1291 text->text.wc[end_pos] = ch;
1296 ch = text->text.ch[end_pos];
1297 text->text.ch[end_pos] = 0;
1298 retval = g_strdup (text->text.ch + start_pos);
1299 text->text.ch[end_pos] = ch;
1307 gtk_stext_destroy (GtkObject *object)
1311 g_return_if_fail (object != NULL);
1312 g_return_if_fail (GTK_IS_STEXT (object));
1314 text = (GtkSText*) object;
1316 gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text);
1317 gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text);
1321 gtk_timeout_remove (text->timer);
1328 gtk_stext_disable_blink(text);
1330 GTK_OBJECT_CLASS(parent_class)->destroy (object);
1334 gtk_stext_finalize (GtkObject *object)
1339 g_return_if_fail (object != NULL);
1340 g_return_if_fail (GTK_IS_STEXT (object));
1342 text = (GtkSText *)object;
1344 gtk_object_unref (GTK_OBJECT (text->hadj));
1345 gtk_object_unref (GTK_OBJECT (text->vadj));
1347 /* Clean up the internal structures */
1348 if (text->use_wchar)
1349 g_free (text->text.wc);
1351 g_free (text->text.ch);
1353 tmp_list = text->text_properties;
1356 destroy_text_property (tmp_list->data);
1357 tmp_list = tmp_list->next;
1360 if (text->current_font)
1361 text_font_unref (text->current_font);
1363 g_list_free (text->text_properties);
1365 if (text->use_wchar)
1367 if (text->scratch_buffer.wc)
1368 g_free (text->scratch_buffer.wc);
1372 if (text->scratch_buffer.ch)
1373 g_free (text->scratch_buffer.ch);
1376 g_list_free (text->tab_stops);
1378 GTK_OBJECT_CLASS(parent_class)->finalize (object);
1382 gtk_stext_realize (GtkWidget *widget)
1385 GtkEditable *editable;
1386 GdkWindowAttr attributes;
1387 gint attributes_mask;
1389 g_return_if_fail (widget != NULL);
1390 g_return_if_fail (GTK_IS_STEXT (widget));
1392 text = GTK_STEXT (widget);
1393 editable = GTK_EDITABLE (widget);
1394 GTK_WIDGET_SET_FLAGS (text, GTK_REALIZED);
1396 attributes.window_type = GDK_WINDOW_CHILD;
1397 attributes.x = widget->allocation.x;
1398 attributes.y = widget->allocation.y;
1399 attributes.width = widget->allocation.width;
1400 attributes.height = widget->allocation.height;
1401 attributes.wclass = GDK_INPUT_OUTPUT;
1402 attributes.visual = gtk_widget_get_visual (widget);
1403 attributes.colormap = gtk_widget_get_colormap (widget);
1404 attributes.event_mask = gtk_widget_get_events (widget);
1405 attributes.event_mask |= (GDK_EXPOSURE_MASK |
1406 GDK_BUTTON_PRESS_MASK |
1407 GDK_BUTTON_RELEASE_MASK |
1408 GDK_BUTTON_MOTION_MASK |
1409 GDK_ENTER_NOTIFY_MASK |
1410 GDK_LEAVE_NOTIFY_MASK |
1411 GDK_KEY_PRESS_MASK);
1412 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1414 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
1415 gdk_window_set_user_data (widget->window, text);
1417 attributes.x = (widget->style->klass->xthickness + TEXT_BORDER_ROOM);
1418 attributes.y = (widget->style->klass->ythickness + TEXT_BORDER_ROOM);
1419 attributes.width = MAX (1, (gint)widget->allocation.width - (gint)attributes.x * 2);
1420 attributes.height = MAX (1, (gint)widget->allocation.height - (gint)attributes.y * 2);
1422 attributes.cursor = gdk_cursor_new (GDK_XTERM);
1423 attributes_mask |= GDK_WA_CURSOR;
1425 text->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
1426 gdk_window_set_user_data (text->text_area, text);
1428 gdk_cursor_destroy (attributes.cursor); /* The X server will keep it around as long as necessary */
1430 widget->style = gtk_style_attach (widget->style, widget->window);
1432 /* Can't call gtk_style_set_background here because it's handled specially */
1433 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1434 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1436 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1437 text->bg_gc = create_bg_gc (text);
1439 text->line_wrap_bitmap = gdk_bitmap_create_from_data (text->text_area,
1440 (gchar*) line_wrap_bits,
1444 text->line_arrow_bitmap = gdk_bitmap_create_from_data (text->text_area,
1445 (gchar*) line_arrow_bits,
1449 text->gc = gdk_gc_new (text->text_area);
1450 gdk_gc_set_exposures (text->gc, TRUE);
1451 gdk_gc_set_foreground (text->gc, &widget->style->text[GTK_STATE_NORMAL]);
1453 #ifdef USE_GTKGDK_XIM
1454 if (gdk_im_ready () && (editable->ic_attr = gdk_ic_attr_new ()) != NULL)
1457 GdkColormap *colormap;
1459 GdkICAttr *attr = editable->ic_attr;
1460 GdkICAttributesType attrmask = GDK_IC_ALL_REQ;
1462 GdkIMStyle supported_style = GDK_IM_PREEDIT_NONE |
1463 GDK_IM_PREEDIT_NOTHING |
1464 GDK_IM_PREEDIT_POSITION |
1465 GDK_IM_STATUS_NONE |
1466 GDK_IM_STATUS_NOTHING;
1468 if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
1469 supported_style &= ~GDK_IM_PREEDIT_POSITION;
1471 attr->style = style = gdk_im_decide_style (supported_style);
1472 attr->client_window = text->text_area;
1474 if ((colormap = gtk_widget_get_colormap (widget)) !=
1475 gtk_widget_get_default_colormap ())
1477 attrmask |= GDK_IC_PREEDIT_COLORMAP;
1478 attr->preedit_colormap = colormap;
1481 switch (style & GDK_IM_PREEDIT_MASK)
1483 case GDK_IM_PREEDIT_POSITION:
1484 if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
1486 g_warning ("over-the-spot style requires fontset");
1490 attrmask |= GDK_IC_PREEDIT_POSITION_REQ;
1491 gdk_window_get_size (text->text_area, &width, &height);
1492 attr->spot_location.x = 0;
1493 attr->spot_location.y = height;
1494 attr->preedit_area.x = 0;
1495 attr->preedit_area.y = 0;
1496 attr->preedit_area.width = width;
1497 attr->preedit_area.height = height;
1498 attr->preedit_fontset = widget->style->font;
1502 editable->ic = gdk_ic_new (attr, attrmask);
1504 if (editable->ic == NULL)
1505 g_warning ("Can't create input context.");
1508 mask = gdk_window_get_events (text->text_area);
1509 mask |= gdk_ic_get_events (editable->ic);
1510 gdk_window_set_events (text->text_area, mask);
1512 if (GTK_WIDGET_HAS_FOCUS (widget))
1513 gdk_im_begin (editable->ic, text->text_area);
1518 realize_properties (text);
1519 gdk_window_show (text->text_area);
1520 init_properties (text);
1522 if (editable->selection_start_pos != editable->selection_end_pos)
1523 gtk_editable_claim_selection (editable, TRUE, GDK_CURRENT_TIME);
1525 recompute_geometry (text);
1529 gtk_stext_style_set (GtkWidget *widget,
1530 GtkStyle *previous_style)
1532 GtkSText *text = GTK_STEXT (widget);
1534 if (GTK_WIDGET_REALIZED (widget))
1536 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1537 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1541 gdk_gc_destroy (text->bg_gc);
1545 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1546 text->bg_gc = create_bg_gc (text);
1548 recompute_geometry (text);
1551 if (text->current_font)
1552 text_font_unref (text->current_font);
1553 text->current_font = get_text_font (widget->style->font);
1557 gtk_stext_state_changed (GtkWidget *widget,
1558 GtkStateType previous_state)
1560 GtkSText *text = GTK_STEXT (widget);
1562 if (GTK_WIDGET_REALIZED (widget))
1564 gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1565 gdk_window_set_background (text->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1570 gtk_stext_unrealize (GtkWidget *widget)
1574 g_return_if_fail (widget != NULL);
1575 g_return_if_fail (GTK_IS_STEXT (widget));
1577 text = GTK_STEXT (widget);
1579 #ifdef USE_GTKGDK_XIM
1580 if (GTK_EDITABLE (widget)->ic)
1582 gdk_ic_destroy (GTK_EDITABLE (widget)->ic);
1583 GTK_EDITABLE (widget)->ic = NULL;
1585 if (GTK_EDITABLE (widget)->ic_attr)
1587 gdk_ic_attr_destroy (GTK_EDITABLE (widget)->ic_attr);
1588 GTK_EDITABLE (widget)->ic_attr = NULL;
1592 gdk_window_set_user_data (text->text_area, NULL);
1593 gdk_window_destroy (text->text_area);
1594 text->text_area = NULL;
1596 gdk_gc_destroy (text->gc);
1601 gdk_gc_destroy (text->bg_gc);
1605 gdk_pixmap_unref (text->line_wrap_bitmap);
1606 gdk_pixmap_unref (text->line_arrow_bitmap);
1608 unrealize_properties (text);
1612 if (GTK_WIDGET_CLASS (parent_class)->unrealize)
1613 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
1617 clear_focus_area (GtkSText *text, gint area_x, gint area_y, gint area_width, gint area_height)
1619 GtkWidget *widget = GTK_WIDGET (text);
1622 gint ythick = TEXT_BORDER_ROOM + widget->style->klass->ythickness;
1623 gint xthick = TEXT_BORDER_ROOM + widget->style->klass->xthickness;
1627 if (area_width == 0 || area_height == 0)
1630 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
1632 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
1634 gdk_gc_set_ts_origin (text->bg_gc,
1635 (- (gint)text->first_onscreen_hor_pixel + xthick) % width,
1636 (- (gint)text->first_onscreen_ver_pixel + ythick) % height);
1641 gc = widget->style->bg_gc[widget->state];
1644 gdk_draw_rectangle (GTK_WIDGET (text)->window, gc, TRUE,
1645 area_x, area_y, area_width, area_height);
1649 gtk_stext_draw_focus (GtkWidget *widget)
1655 g_return_if_fail (widget != NULL);
1656 g_return_if_fail (GTK_IS_STEXT (widget));
1658 text = GTK_STEXT (widget);
1660 if (GTK_WIDGET_DRAWABLE (widget))
1662 gint ythick = widget->style->klass->ythickness;
1663 gint xthick = widget->style->klass->xthickness;
1664 gint xextra = TEXT_BORDER_ROOM;
1665 gint yextra = TEXT_BORDER_ROOM;
1667 TDEBUG (("in gtk_stext_draw_focus\n"));
1671 width = widget->allocation.width;
1672 height = widget->allocation.height;
1674 if (GTK_WIDGET_HAS_FOCUS (widget))
1683 gtk_paint_focus (widget->style, widget->window,
1684 NULL, widget, "text",
1686 widget->allocation.width - 1,
1687 widget->allocation.height - 1);
1690 gtk_paint_shadow (widget->style, widget->window,
1691 GTK_STATE_NORMAL, GTK_SHADOW_IN,
1692 NULL, widget, "text",
1693 x, y, width, height);
1697 width -= 2 * xthick;
1698 height -= 2 * ythick;
1701 clear_focus_area (text, x, y, width, yextra);
1703 clear_focus_area (text, x, y + yextra,
1704 xextra, y + height - 2 * yextra);
1706 clear_focus_area (text, x + width - xextra, y + yextra,
1707 xextra, height - 2 * ythick);
1709 clear_focus_area (text, x, x + height - yextra, width, yextra);
1713 TDEBUG (("in gtk_stext_draw_focus (undrawable !!!)\n"));
1718 gtk_stext_size_request (GtkWidget *widget,
1719 GtkRequisition *requisition)
1726 g_return_if_fail (widget != NULL);
1727 g_return_if_fail (GTK_IS_STEXT (widget));
1728 g_return_if_fail (requisition != NULL);
1730 xthickness = widget->style->klass->xthickness + TEXT_BORDER_ROOM;
1731 ythickness = widget->style->klass->ythickness + TEXT_BORDER_ROOM;
1733 char_height = MIN_TEXT_HEIGHT_LINES * (widget->style->font->ascent +
1734 widget->style->font->descent);
1736 char_width = MIN_TEXT_WIDTH_LINES * (gdk_text_width (widget->style->font,
1737 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
1741 requisition->width = char_width + xthickness * 2;
1742 requisition->height = char_height + ythickness * 2;
1746 gtk_stext_size_allocate (GtkWidget *widget,
1747 GtkAllocation *allocation)
1750 GtkEditable *editable;
1752 g_return_if_fail (widget != NULL);
1753 g_return_if_fail (GTK_IS_STEXT (widget));
1754 g_return_if_fail (allocation != NULL);
1756 text = GTK_STEXT (widget);
1757 editable = GTK_EDITABLE (widget);
1759 widget->allocation = *allocation;
1760 if (GTK_WIDGET_REALIZED (widget))
1762 gdk_window_move_resize (widget->window,
1763 allocation->x, allocation->y,
1764 allocation->width, allocation->height);
1766 gdk_window_move_resize (text->text_area,
1767 widget->style->klass->xthickness + TEXT_BORDER_ROOM,
1768 widget->style->klass->ythickness + TEXT_BORDER_ROOM,
1769 MAX (1, (gint)widget->allocation.width - (gint)(widget->style->klass->xthickness +
1770 (gint)TEXT_BORDER_ROOM) * 2),
1771 MAX (1, (gint)widget->allocation.height - (gint)(widget->style->klass->ythickness +
1772 (gint)TEXT_BORDER_ROOM) * 2));
1774 #ifdef USE_GTKGDK_XIM
1775 if (editable->ic && (gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION))
1779 gdk_window_get_size (text->text_area, &width, &height);
1780 editable->ic_attr->preedit_area.width = width;
1781 editable->ic_attr->preedit_area.height = height;
1783 gdk_ic_set_attr (editable->ic,
1784 editable->ic_attr, GDK_IC_PREEDIT_AREA);
1788 recompute_geometry (text);
1793 gtk_stext_draw (GtkWidget *widget,
1796 g_return_if_fail (widget != NULL);
1797 g_return_if_fail (GTK_IS_STEXT (widget));
1798 g_return_if_fail (area != NULL);
1800 if (GTK_WIDGET_DRAWABLE (widget))
1802 expose_text (GTK_STEXT (widget), area, TRUE);
1803 gtk_widget_draw_focus (widget);
1808 gtk_stext_expose (GtkWidget *widget,
1809 GdkEventExpose *event)
1811 g_return_val_if_fail (widget != NULL, FALSE);
1812 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
1813 g_return_val_if_fail (event != NULL, FALSE);
1815 if (event->window == GTK_STEXT (widget)->text_area)
1817 TDEBUG (("in gtk_stext_expose (expose)\n"));
1818 expose_text (GTK_STEXT (widget), &event->area, TRUE);
1820 else if (event->count == 0)
1822 TDEBUG (("in gtk_stext_expose (focus)\n"));
1823 gtk_widget_draw_focus (widget);
1830 gtk_stext_scroll_timeout (gpointer data)
1833 GdkEventMotion event;
1835 GdkModifierType mask;
1837 GDK_THREADS_ENTER ();
1839 text = GTK_STEXT (data);
1842 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
1844 if (mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK))
1851 gtk_stext_motion_notify (GTK_WIDGET (text), &event);
1854 GDK_THREADS_LEAVE ();
1860 gtk_stext_button_press (GtkWidget *widget,
1861 GdkEventButton *event)
1864 GtkEditable *editable;
1865 static GdkAtom ctext_atom = GDK_NONE;
1867 g_return_val_if_fail (widget != NULL, FALSE);
1868 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
1869 g_return_val_if_fail (event != NULL, FALSE);
1871 if (ctext_atom == GDK_NONE)
1872 ctext_atom = gdk_atom_intern ("COMPOUND_TEXT", FALSE);
1874 text = GTK_STEXT (widget);
1875 editable = GTK_EDITABLE (widget);
1877 if (text->button && (event->button != text->button))
1880 text->button = event->button;
1882 if (!GTK_WIDGET_HAS_FOCUS (widget))
1883 gtk_widget_grab_focus (widget);
1885 if (event->button == 1)
1887 switch (event->type)
1889 case GDK_BUTTON_PRESS:
1890 gtk_grab_add (widget);
1892 undraw_cursor (text, FALSE);
1893 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1894 draw_cursor (text, FALSE);
1896 /* Set it now, so we display things right. We'll unset it
1897 * later if things don't work out */
1898 editable->has_selection = TRUE;
1899 gtk_stext_set_selection (GTK_EDITABLE(text),
1900 text->cursor_mark.index,
1901 text->cursor_mark.index);
1905 case GDK_2BUTTON_PRESS:
1906 gtk_stext_select_word (text, event->time);
1909 case GDK_3BUTTON_PRESS:
1910 gtk_stext_select_line (text, event->time);
1917 else if (event->type == GDK_BUTTON_PRESS)
1919 if ((event->button == 2) && editable->editable)
1921 if (editable->selection_start_pos == editable->selection_end_pos ||
1922 editable->has_selection)
1924 undraw_cursor (text, FALSE);
1925 find_mouse_cursor (text, (gint)event->x, (gint)event->y);
1926 draw_cursor (text, FALSE);
1930 gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
1931 ctext_atom, event->time);
1935 gtk_grab_add (widget);
1937 undraw_cursor (text, FALSE);
1938 find_mouse_cursor (text, event->x, event->y);
1939 draw_cursor (text, FALSE);
1941 gtk_stext_set_selection (GTK_EDITABLE(text),
1942 text->cursor_mark.index,
1943 text->cursor_mark.index);
1945 editable->has_selection = FALSE;
1946 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
1947 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
1955 gtk_stext_button_release (GtkWidget *widget,
1956 GdkEventButton *event)
1959 GtkEditable *editable;
1960 g_return_val_if_fail (widget != NULL, FALSE);
1961 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
1962 g_return_val_if_fail (event != NULL, FALSE);
1964 text = GTK_STEXT (widget);
1966 gtk_grab_remove (widget);
1968 if (text->button != event->button)
1975 gtk_timeout_remove (text->timer);
1979 if (event->button == 1)
1981 text = GTK_STEXT (widget);
1982 editable = GTK_EDITABLE (widget);
1984 gtk_grab_remove (widget);
1986 editable->has_selection = FALSE;
1987 if (editable->selection_start_pos != editable->selection_end_pos)
1989 if (gtk_selection_owner_set (widget,
1990 GDK_SELECTION_PRIMARY,
1992 editable->has_selection = TRUE;
1994 gtk_stext_update_text (editable, editable->selection_start_pos,
1995 editable->selection_end_pos);
1999 if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
2000 gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
2003 else if (event->button == 3)
2005 gtk_grab_remove (widget);
2008 undraw_cursor (text, FALSE);
2009 find_cursor (text, TRUE);
2010 draw_cursor (text, FALSE);
2016 gtk_stext_motion_notify (GtkWidget *widget,
2017 GdkEventMotion *event)
2022 GdkModifierType mask;
2024 g_return_val_if_fail (widget != NULL, FALSE);
2025 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
2026 g_return_val_if_fail (event != NULL, FALSE);
2028 text = GTK_STEXT (widget);
2032 mask = event->state;
2033 if (event->is_hint || (text->text_area != event->window))
2035 gdk_window_get_pointer (text->text_area, &x, &y, &mask);
2038 if ((text->button == 0) ||
2039 !(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)))
2042 gdk_window_get_size (text->text_area, NULL, &height);
2044 if ((y < 0) || (y > height))
2046 if (text->timer == 0)
2048 text->timer = gtk_timeout_add (SCROLL_TIME,
2049 gtk_stext_scroll_timeout,
2053 scroll_int (text, y/2);
2055 scroll_int (text, (y - height)/2);
2061 undraw_cursor (GTK_STEXT (widget), FALSE);
2062 find_mouse_cursor (GTK_STEXT (widget), x, y);
2063 draw_cursor (GTK_STEXT (widget), FALSE);
2065 gtk_stext_set_selection (GTK_EDITABLE(text),
2066 GTK_EDITABLE(text)->selection_start_pos,
2067 text->cursor_mark.index);
2073 gtk_stext_insert_text (GtkEditable *editable,
2074 const gchar *new_text,
2075 gint new_text_length,
2078 GtkSText *text = GTK_STEXT (editable);
2080 GdkColor *fore, *back;
2082 TextProperty *property;
2084 gtk_stext_set_point (text, *position);
2086 property = MARK_CURRENT_PROPERTY (&text->point);
2087 font = property->flags & PROPERTY_FONT ? property->font->gdk_font : NULL;
2088 fore = property->flags & PROPERTY_FOREGROUND ? &property->fore_color : NULL;
2089 back = property->flags & PROPERTY_BACKGROUND ? &property->back_color : NULL;
2091 gtk_stext_insert (text, font, fore, back, new_text, new_text_length);
2093 *position = text->point.index;
2097 gtk_stext_delete_text (GtkEditable *editable,
2103 g_return_if_fail (start_pos >= 0);
2105 text = GTK_STEXT (editable);
2107 gtk_stext_set_point (text, start_pos);
2109 end_pos = TEXT_LENGTH (text);
2111 if (end_pos > start_pos)
2112 gtk_stext_forward_delete (text, end_pos - start_pos);
2116 gtk_stext_key_press (GtkWidget *widget,
2120 GtkEditable *editable;
2125 g_return_val_if_fail (widget != NULL, FALSE);
2126 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
2127 g_return_val_if_fail (event != NULL, FALSE);
2131 text = GTK_STEXT (widget);
2132 editable = GTK_EDITABLE (widget);
2134 key = event->keyval;
2137 if ((GTK_EDITABLE(text)->editable == FALSE))
2139 switch (event->keyval)
2142 if (event->state & GDK_CONTROL_MASK)
2143 scroll_int (text, -text->vadj->value);
2148 if (event->state & GDK_CONTROL_MASK)
2149 scroll_int (text, +text->vadj->upper);
2153 case GDK_Page_Up: scroll_int (text, -text->vadj->page_increment); break;
2154 case GDK_Page_Down: scroll_int (text, +text->vadj->page_increment); break;
2156 scroll_int (text, -KEY_SCROLL_PIXELS);
2158 case GDK_Down: scroll_int (text, +KEY_SCROLL_PIXELS); break;
2160 if (event->state & GDK_CONTROL_MASK)
2161 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
2172 gint extend_selection;
2174 guint initial_pos = editable->current_pos;
2176 text->point = find_mark (text, text->cursor_mark.index);
2178 extend_selection = event->state & GDK_SHIFT_MASK;
2179 extend_start = FALSE;
2181 if (extend_selection)
2183 editable->has_selection = TRUE;
2185 if (editable->selection_start_pos == editable->selection_end_pos)
2187 editable->selection_start_pos = text->point.index;
2188 editable->selection_end_pos = text->point.index;
2191 extend_start = (text->point.index == editable->selection_start_pos);
2192 gtk_stext_disable_blink(text);
2198 if (!extend_selection)
2199 gtk_stext_enable_blink(text);
2201 if (event->keyval != GDK_Up && event->keyval != GDK_Down) {
2202 reset_persist_col_pos(text);
2205 switch (event->keyval)
2208 if (event->state & GDK_CONTROL_MASK) {
2209 if (text->wrap_rmargin == 0) {
2210 /* SYLPHEED: old behaviour */
2211 move_cursor_buffer_ver (text, -1);
2214 /* SYLPHEED: contrived, but "trusty" */
2215 move_cursor_buffer_ver(text, -1);
2216 move_cursor_to_display_row_start(text);
2220 if (text->wrap_rmargin > 0) {
2221 /* SYLPHEED: line start */
2222 move_cursor_to_display_row_start(text);
2225 gtk_stext_move_beginning_of_line (text);
2230 if (event->state & GDK_CONTROL_MASK) {
2231 /* SYLPHEED: a little bit contrived... */
2232 if (text->wrap_rmargin == 0) {
2234 move_cursor_buffer_ver (text, +1);
2237 move_cursor_buffer_ver(text, +1);
2238 move_cursor_to_display_row_end(text);
2242 if (text->wrap_rmargin > 0) {
2243 /* SYLPHEED: line end */
2244 move_cursor_to_display_row_end(text);
2247 gtk_stext_move_end_of_line(text);
2252 move_cursor_page_ver (text, -1);
2254 case GDK_Page_Down: move_cursor_page_ver (text, +1); break;
2255 /* CUA has Ctrl-Up/Ctrl-Down as paragraph up down */
2257 if (text->wrap_rmargin > 0) {
2260 move_cursor_to_display_row_up(text);
2263 move_cursor_ver (text, -1);
2267 move_cursor_to_display_row_down(text);
2268 /* move_cursor_ver (text, +1); */
2271 if (event->state & GDK_CONTROL_MASK)
2272 gtk_stext_move_backward_word (text);
2274 move_cursor_hor (text, -1);
2277 if (event->state & GDK_CONTROL_MASK)
2278 gtk_stext_move_forward_word (text);
2280 move_cursor_hor (text, +1);
2284 if (event->state & GDK_CONTROL_MASK)
2285 gtk_stext_delete_backward_word (text);
2287 gtk_stext_delete_backward_character (text);
2290 gtk_stext_delete_line (text);
2293 if (event->state & GDK_SHIFT_MASK)
2295 extend_selection = FALSE;
2296 gtk_editable_paste_clipboard (editable);
2298 else if (event->state & GDK_CONTROL_MASK)
2300 gtk_editable_copy_clipboard (editable);
2304 /* gtk_toggle_insert(text) -- IMPLEMENT */
2309 if (event->state & GDK_CONTROL_MASK) {
2310 gtk_stext_delete_forward_word (text);
2312 else if (event->state & GDK_SHIFT_MASK)
2314 extend_selection = FALSE;
2315 gtk_editable_cut_clipboard (editable);
2318 gtk_stext_delete_forward_character (text);
2323 position = text->point.index;
2324 gtk_editable_insert_text (editable, "\t", 1, &position);
2327 if (event->state & GDK_CONTROL_MASK)
2328 gtk_signal_emit_by_name (GTK_OBJECT (text), "activate");
2331 position = text->point.index;
2332 gtk_editable_insert_text (editable, "\n", 1, &position);
2336 /* Don't insert literally */
2343 if (event->state & GDK_CONTROL_MASK)
2345 if ((key >= 'A') && (key <= 'Z'))
2348 if ((key >= 'a') && (key <= 'z') && control_keys[(int) (key - 'a')])
2350 (* control_keys[(int) (key - 'a')]) (editable, event->time);
2356 else if (event->state & GDK_MOD1_MASK)
2358 if ((key >= 'A') && (key <= 'Z'))
2361 if ((key >= 'a') && (key <= 'z') && alt_keys[(int) (key - 'a')])
2363 (* alt_keys[(int) (key - 'a')]) (editable, event->time);
2369 else if (event->length > 0)
2371 extend_selection = FALSE;
2373 gtk_editable_delete_selection (editable);
2374 position = text->point.index;
2375 gtk_editable_insert_text (editable, event->string, event->length, &position);
2383 if (return_val && (editable->current_pos != initial_pos))
2385 if (extend_selection)
2387 if (editable->current_pos < editable->selection_start_pos)
2388 gtk_stext_set_selection (editable, editable->current_pos,
2389 editable->selection_end_pos);
2390 else if (editable->current_pos > editable->selection_end_pos)
2391 gtk_stext_set_selection (editable, editable->selection_start_pos,
2392 editable->current_pos);
2396 gtk_stext_set_selection (editable, editable->current_pos,
2397 editable->selection_end_pos);
2399 gtk_stext_set_selection (editable, editable->selection_start_pos,
2400 editable->current_pos);
2404 gtk_stext_set_selection (editable, 0, 0);
2406 gtk_editable_claim_selection (editable,
2407 editable->selection_start_pos != editable->selection_end_pos,
2416 gtk_stext_focus_in (GtkWidget *widget,
2417 GdkEventFocus *event)
2419 g_return_val_if_fail (widget != NULL, FALSE);
2420 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
2421 g_return_val_if_fail (event != NULL, FALSE);
2423 TDEBUG (("in gtk_stext_focus_in\n"));
2425 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
2426 gtk_widget_draw_focus (widget);
2428 #ifdef USE_GTKGDK_XIM
2429 if (GTK_EDITABLE(widget)->ic)
2430 gdk_im_begin (GTK_EDITABLE(widget)->ic, GTK_STEXT(widget)->text_area);
2433 draw_cursor (GTK_STEXT(widget), TRUE);
2434 GTK_STEXT(widget)->cursor_visible = TRUE;
2435 gtk_stext_enable_blink(GTK_STEXT(widget));
2441 gtk_stext_focus_out (GtkWidget *widget,
2442 GdkEventFocus *event)
2444 g_return_val_if_fail (widget != NULL, FALSE);
2445 g_return_val_if_fail (GTK_IS_STEXT (widget), FALSE);
2446 g_return_val_if_fail (event != NULL, FALSE);
2448 TDEBUG (("in gtk_stext_focus_out\n"));
2450 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
2451 gtk_widget_draw_focus (widget);
2454 * should disable blink before undrawing the cursor - disabling blink
2455 * redraws the cursor.
2457 gtk_stext_disable_blink(GTK_STEXT(widget));
2458 undraw_cursor (GTK_STEXT(widget), TRUE);
2459 GTK_STEXT(widget)->cursor_visible = FALSE;
2461 #ifdef USE_GTKGDK_XIM
2469 gtk_stext_adjustment (GtkAdjustment *adjustment,
2474 g_return_if_fail (adjustment != NULL);
2475 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2476 g_return_if_fail (text != NULL);
2477 g_return_if_fail (GTK_IS_STEXT (text));
2479 /* Clamp the value here, because we'll get really confused
2480 * if someone tries to move the adjusment outside of the
2483 old_val = adjustment->value;
2485 adjustment->value = MIN (adjustment->value, adjustment->upper - adjustment->page_size);
2486 adjustment->value = MAX (adjustment->value, 0.0);
2488 if (adjustment->value != old_val)
2490 gtk_signal_handler_block_by_func (GTK_OBJECT (adjustment),
2491 GTK_SIGNAL_FUNC (gtk_stext_adjustment),
2493 gtk_adjustment_changed (adjustment);
2494 gtk_signal_handler_unblock_by_func (GTK_OBJECT (adjustment),
2495 GTK_SIGNAL_FUNC (gtk_stext_adjustment),
2499 /* Just ignore it if we haven't been size-allocated and realized yet */
2500 if (text->line_start_cache == NULL)
2503 if (adjustment == text->hadj)
2505 g_warning ("horizontal scrolling not implemented");
2509 gint diff = ((gint)adjustment->value) - text->last_ver_value;
2513 undraw_cursor (text, FALSE);
2516 scroll_down (text, diff);
2517 else /* if (diff < 0) */
2518 scroll_up (text, diff);
2520 draw_cursor (text, FALSE);
2522 text->last_ver_value = adjustment->value;
2528 gtk_stext_disconnect (GtkAdjustment *adjustment,
2531 g_return_if_fail (adjustment != NULL);
2532 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
2533 g_return_if_fail (text != NULL);
2534 g_return_if_fail (GTK_IS_STEXT (text));
2536 if (adjustment == text->hadj)
2537 gtk_stext_set_adjustments (text, NULL, text->vadj);
2538 if (adjustment == text->vadj)
2539 gtk_stext_set_adjustments (text, text->hadj, NULL);
2543 static GtkSPropertyMark
2544 find_this_line_start_mark (GtkSText* text, guint point_position, const GtkSPropertyMark* near)
2546 GtkSPropertyMark mark;
2548 mark = find_mark_near (text, point_position, near);
2550 while (mark.index > 0 &&
2551 GTK_STEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
2552 decrement_mark (&mark);
2558 init_tab_cont (GtkSText* text, PrevTabCont* tab_cont)
2560 tab_cont->pixel_offset = 0;
2561 tab_cont->tab_start.tab_stops = text->tab_stops;
2562 tab_cont->tab_start.to_next_tab = (gulong) text->tab_stops->data;
2564 if (!tab_cont->tab_start.to_next_tab)
2565 tab_cont->tab_start.to_next_tab = text->default_tab_width;
2569 line_params_iterate (GtkSText* text,
2570 const GtkSPropertyMark* mark0,
2571 const PrevTabCont* tab_mark0,
2574 LineIteratorFunction iter)
2575 /* mark0 MUST be a real line start. if ALLOC, allocate line params
2576 * from a mem chunk. DATA is passed to ITER_CALL, which is called
2577 * for each line following MARK, iteration continues unless ITER_CALL
2580 GtkSPropertyMark mark = *mark0;
2581 PrevTabCont tab_conts[2];
2582 LineParams *lp, lpbuf;
2583 gint tab_cont_index = 0;
2586 tab_conts[0] = *tab_mark0;
2588 init_tab_cont (text, tab_conts);
2593 lp = g_chunk_new (LineParams, params_mem_chunk);
2597 *lp = find_line_params (text, &mark, tab_conts + tab_cont_index,
2598 tab_conts + (tab_cont_index + 1) % 2);
2600 if ((*iter) (text, lp, data))
2603 if (LAST_INDEX (text, lp->end))
2607 advance_mark (&mark);
2608 tab_cont_index = (tab_cont_index + 1) % 2;
2613 fetch_lines_iterator (GtkSText* text, LineParams* lp, void* data)
2615 FetchLinesData *fldata = (FetchLinesData*) data;
2617 fldata->new_lines = g_list_prepend (fldata->new_lines, lp);
2619 switch (fldata->fl_type)
2621 case FetchLinesCount:
2622 if (!text->line_wrap || !lp->wraps)
2625 if (fldata->data >= fldata->data_max)
2629 case FetchLinesPixels:
2631 fldata->data += LINE_HEIGHT(*lp);
2633 if (fldata->data >= fldata->data_max)
2643 fetch_lines (GtkSText* text,
2644 const GtkSPropertyMark* mark0,
2645 const PrevTabCont* tab_cont0,
2649 FetchLinesData fl_data;
2651 fl_data.new_lines = NULL;
2653 fl_data.data_max = data;
2654 fl_data.fl_type = fl_type;
2656 line_params_iterate (text, mark0, tab_cont0, TRUE, &fl_data, fetch_lines_iterator);
2658 return g_list_reverse (fl_data.new_lines);
2662 fetch_lines_backward (GtkSText* text)
2664 GList* new_lines = NULL, *new_line_start;
2665 GtkSPropertyMark mark;
2667 if (CACHE_DATA(text->line_start_cache).start.index == 0)
2670 mark = find_this_line_start_mark (text,
2671 CACHE_DATA(text->line_start_cache).start.index - 1,
2672 &CACHE_DATA(text->line_start_cache).start);
2674 new_line_start = new_lines = fetch_lines (text, &mark, NULL, FetchLinesCount, 1);
2676 while (new_line_start->next)
2677 new_line_start = new_line_start->next;
2679 new_line_start->next = text->line_start_cache;
2680 text->line_start_cache->prev = new_line_start;
2684 fetch_lines_forward (GtkSText* text, gint line_count)
2686 GtkSPropertyMark mark;
2687 GList* line = text->line_start_cache;
2692 mark = CACHE_DATA(line).end;
2694 if (LAST_INDEX (text, mark))
2697 advance_mark(&mark);
2699 line->next = fetch_lines (text, &mark, &CACHE_DATA(line).tab_cont_next, FetchLinesCount, line_count);
2702 line->next->prev = line;
2705 /* Compute the number of lines, and vertical pixels for n characters
2706 * starting from the point
2709 compute_lines_pixels (GtkSText* text, guint char_count,
2710 guint *lines, guint *pixels)
2712 GList *line = text->current_line;
2713 gint chars_left = char_count;
2718 /* If chars_left == 0, that means we're joining two lines in a
2719 * deletion, so add in the values for the next line as well
2721 for (; line && chars_left >= 0; line = line->next)
2723 *pixels += LINE_HEIGHT(CACHE_DATA(line));
2725 if (line == text->current_line)
2726 chars_left -= CACHE_DATA(line).end.index - text->point.index + 1;
2728 chars_left -= CACHE_DATA(line).end.index - CACHE_DATA(line).start.index + 1;
2730 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2734 chars_left = 0; /* force another loop */
2737 fetch_lines_forward (text, 1);
2742 total_line_height (GtkSText* text, GList* line, gint line_count)
2746 for (; line && line_count > 0; line = line->next)
2748 height += LINE_HEIGHT(CACHE_DATA(line));
2750 if (!text->line_wrap || !CACHE_DATA(line).wraps)
2754 fetch_lines_forward (text, line_count);
2761 swap_lines (GtkSText* text, GList* old, GList* new, guint old_line_count)
2763 if (old == text->line_start_cache)
2767 for (; old_line_count > 0; old_line_count -= 1)
2769 while (text->line_start_cache &&
2771 CACHE_DATA(text->line_start_cache).wraps)
2772 remove_cache_line(text, text->line_start_cache);
2774 remove_cache_line(text, text->line_start_cache);
2777 last = g_list_last (new);
2779 last->next = text->line_start_cache;
2781 if (text->line_start_cache)
2782 text->line_start_cache->prev = last;
2784 text->line_start_cache = new;
2790 g_assert (old->prev);
2794 for (; old_line_count > 0; old_line_count -= 1)
2796 while (old && text->line_wrap && CACHE_DATA(old).wraps)
2797 old = remove_cache_line (text, old);
2799 old = remove_cache_line (text, old);
2805 last = g_list_last (new);
2815 correct_cache_delete (GtkSText* text, gint nchars, gint lines)
2817 GList* cache = text->current_line;
2820 for (i = 0; cache && i < lines; i += 1, cache = cache->next)
2823 for (; cache; cache = cache->next)
2825 GtkSPropertyMark *start = &CACHE_DATA(cache).start;
2826 GtkSPropertyMark *end = &CACHE_DATA(cache).end;
2828 start->index -= nchars;
2829 end->index -= nchars;
2831 if (LAST_INDEX (text, text->point) &&
2832 start->index == text->point.index)
2833 *start = text->point;
2834 else if (start->property == text->point.property)
2835 start->offset = start->index - (text->point.index - text->point.offset);
2837 if (LAST_INDEX (text, text->point) &&
2838 end->index == text->point.index)
2840 if (end->property == text->point.property)
2841 end->offset = end->index - (text->point.index - text->point.offset);
2843 /*TEXT_ASSERT_MARK(text, start, "start");*/
2844 /*TEXT_ASSERT_MARK(text, end, "end");*/
2849 delete_expose (GtkSText* text, guint nchars, guint old_lines, guint old_pixels)
2851 GtkWidget *widget = GTK_WIDGET (text);
2854 guint new_pixels = 0;
2856 GList* new_line = NULL;
2859 text->cursor_virtual_x = 0;
2861 correct_cache_delete (text, nchars, old_lines);
2863 pixel_height = pixel_height_of(text, text->current_line) -
2864 LINE_HEIGHT(CACHE_DATA(text->current_line));
2866 if (CACHE_DATA(text->current_line).start.index == text->point.index)
2867 CACHE_DATA(text->current_line).start = text->point;
2869 new_line = fetch_lines (text,
2870 &CACHE_DATA(text->current_line).start,
2871 &CACHE_DATA(text->current_line).tab_cont,
2875 swap_lines (text, text->current_line, new_line, old_lines);
2877 text->current_line = new_line;
2879 new_pixels = total_line_height (text, new_line, 1);
2881 gdk_window_get_size (text->text_area, &width, &height);
2883 if (old_pixels != new_pixels)
2885 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
2887 gdk_draw_pixmap (text->text_area,
2891 pixel_height + old_pixels,
2893 pixel_height + new_pixels,
2897 text->vadj->upper += new_pixels;
2898 text->vadj->upper -= old_pixels;
2899 adjust_adj (text, text->vadj);
2903 rect.y = pixel_height;
2905 rect.height = new_pixels;
2907 expose_text (text, &rect, FALSE);
2908 gtk_stext_draw_focus ( (GtkWidget *) text);
2910 text->cursor_mark = text->point;
2912 find_cursor (text, TRUE);
2914 if (old_pixels != new_pixels)
2916 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
2919 rect.y = pixel_height + new_pixels;
2921 rect.height = height - rect.y;
2923 expose_text (text, &rect, FALSE);
2926 process_exposes (text);
2933 /* note, the point has already been moved forward */
2935 correct_cache_insert (GtkSText* text, gint nchars)
2938 GtkSPropertyMark *start;
2939 GtkSPropertyMark *end;
2941 /* If we inserted a property exactly at the beginning of the
2942 * line, we have to correct here, or fetch_lines will
2945 start = &CACHE_DATA(text->current_line).start;
2946 if (start->index == text->point.index - nchars)
2948 *start = text->point;
2949 move_mark_n (start, -nchars);
2952 /* Now correct the offsets, and check for start or end marks that
2953 * are after the point, yet point to a property before the point's
2954 * property. This indicates that they are meant to point to the
2955 * second half of a property we split in insert_text_property(), so
2956 * we fix them up that way.
2958 cache = text->current_line->next;
2960 for (; cache; cache = cache->next)
2962 start = &CACHE_DATA(cache).start;
2963 end = &CACHE_DATA(cache).end;
2965 if (LAST_INDEX (text, text->point) &&
2966 start->index == text->point.index)
2967 *start = text->point;
2970 if (start->property == text->point.property)
2972 start->offset += nchars;
2973 start->index += nchars;
2975 else if (start->property->next &&
2976 (start->property->next->next == text->point.property))
2978 /* We split the property, and this is the second half */
2979 start->offset -= MARK_CURRENT_PROPERTY (start)->length;
2980 start->index += nchars;
2981 start->property = text->point.property;
2984 start->index += nchars;
2987 if (LAST_INDEX (text, text->point) &&
2988 end->index == text->point.index)
2992 if (end->property == text->point.property)
2994 end->offset += nchars;
2995 end->index += nchars;
2997 else if (end->property->next &&
2998 (end->property->next->next == text->point.property))
3000 /* We split the property, and this is the second half */
3001 end->offset -= MARK_CURRENT_PROPERTY (end)->length;
3002 end->index += nchars;
3003 end->property = text->point.property;
3006 end->index += nchars;
3009 /*TEXT_ASSERT_MARK(text, start, "start");*/
3010 /*TEXT_ASSERT_MARK(text, end, "end");*/
3016 insert_expose (GtkSText* text, guint old_pixels, gint nchars,
3017 guint new_line_count)
3019 GtkWidget *widget = GTK_WIDGET (text);
3022 guint new_pixels = 0;
3024 GList* new_lines = NULL;
3027 text->cursor_virtual_x = 0;
3029 undraw_cursor (text, FALSE);
3031 correct_cache_insert (text, nchars);
3033 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
3035 pixel_height = pixel_height_of(text, text->current_line) -
3036 LINE_HEIGHT(CACHE_DATA(text->current_line));
3038 new_lines = fetch_lines (text,
3039 &CACHE_DATA(text->current_line).start,
3040 &CACHE_DATA(text->current_line).tab_cont,
3044 swap_lines (text, text->current_line, new_lines, 1);
3046 text->current_line = new_lines;
3048 new_pixels = total_line_height (text, new_lines, new_line_count);
3050 gdk_window_get_size (text->text_area, &width, &height);
3052 if (old_pixels != new_pixels)
3054 if (!widget->style->bg_pixmap[GTK_STATE_NORMAL])
3056 gdk_draw_pixmap (text->text_area,
3060 pixel_height + old_pixels,
3062 pixel_height + new_pixels,
3064 height + (old_pixels - new_pixels) - pixel_height);
3067 text->vadj->upper += new_pixels;
3068 text->vadj->upper -= old_pixels;
3069 adjust_adj (text, text->vadj);
3073 rect.y = pixel_height;
3075 rect.height = new_pixels;
3077 expose_text (text, &rect, FALSE);
3078 gtk_stext_draw_focus ( (GtkWidget *) text);
3080 text->cursor_mark = text->point;
3082 find_cursor (text, TRUE);
3084 draw_cursor (text, FALSE);
3086 if (old_pixels != new_pixels)
3088 if (widget->style->bg_pixmap[GTK_STATE_NORMAL])
3091 rect.y = pixel_height + new_pixels;
3093 rect.height = height - rect.y;
3095 expose_text (text, &rect, FALSE);
3098 process_exposes (text);
3101 TEXT_SHOW_ADJ (text, text->vadj, "vadj");
3106 /* Text property functions */
3109 font_hash (gconstpointer font)
3111 return gdk_font_id ((const GdkFont*) font);
3114 static GHashTable *font_cache_table = NULL;
3116 static GtkSTextFont*
3117 get_text_font (GdkFont* gfont)
3122 if (!font_cache_table)
3123 font_cache_table = g_hash_table_new (font_hash, (GCompareFunc) gdk_font_equal);
3125 tf = g_hash_table_lookup (font_cache_table, gfont);
3133 tf = g_new (GtkSTextFont, 1);
3136 tf->gdk_font = gfont;
3137 gdk_font_ref (gfont);
3139 for(i = 0; i < 256; i += 1)
3140 tf->char_widths[i] = gdk_char_width (gfont, (char)i);
3142 g_hash_table_insert (font_cache_table, gfont, tf);
3148 text_font_unref (GtkSTextFont *text_font)
3150 text_font->ref_count--;
3151 if (text_font->ref_count == 0)
3153 g_hash_table_remove (font_cache_table, text_font->gdk_font);
3154 gdk_font_unref (text_font->gdk_font);
3160 text_properties_equal (TextProperty* prop, GdkFont* font, GdkColor *fore, GdkColor *back)
3162 if (prop->flags & PROPERTY_FONT)
3165 GtkSTextFont *text_font;
3170 text_font = get_text_font (font);
3172 retval = (prop->font == text_font);
3173 text_font_unref (text_font);
3182 if (prop->flags & PROPERTY_FOREGROUND)
3184 if (!fore || !gdk_color_equal (&prop->fore_color, fore))
3191 if (prop->flags & PROPERTY_BACKGROUND)
3193 if (!back || !gdk_color_equal (&prop->back_color, back))
3204 realize_property (GtkSText *text, TextProperty *prop)
3206 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
3208 if (prop->flags & PROPERTY_FOREGROUND)
3209 gdk_colormap_alloc_color (colormap, &prop->fore_color, FALSE, FALSE);
3211 if (prop->flags & PROPERTY_BACKGROUND)
3212 gdk_colormap_alloc_color (colormap, &prop->back_color, FALSE, FALSE);
3216 realize_properties (GtkSText *text)
3218 GList *tmp_list = text->text_properties;
3222 realize_property (text, tmp_list->data);
3224 tmp_list = tmp_list->next;
3229 unrealize_property (GtkSText *text, TextProperty *prop)
3231 GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text));
3233 if (prop->flags & PROPERTY_FOREGROUND)
3234 gdk_colormap_free_colors (colormap, &prop->fore_color, 1);
3236 if (prop->flags & PROPERTY_BACKGROUND)
3237 gdk_colormap_free_colors (colormap, &prop->back_color, 1);
3241 unrealize_properties (GtkSText *text)
3243 GList *tmp_list = text->text_properties;
3247 unrealize_property (text, tmp_list->data);
3249 tmp_list = tmp_list->next;
3253 static TextProperty*
3254 new_text_property (GtkSText *text, GdkFont *font, GdkColor* fore,
3255 GdkColor* back, guint length)
3259 if (text_property_chunk == NULL)
3261 text_property_chunk = g_mem_chunk_new ("text property mem chunk",
3262 sizeof(TextProperty),
3263 1024*sizeof(TextProperty),
3267 prop = g_chunk_new(TextProperty, text_property_chunk);
3272 prop->flags |= PROPERTY_FONT;
3273 prop->font = get_text_font (font);
3280 prop->flags |= PROPERTY_FOREGROUND;
3281 prop->fore_color = *fore;
3286 prop->flags |= PROPERTY_BACKGROUND;
3287 prop->back_color = *back;
3290 prop->length = length;
3292 if (GTK_WIDGET_REALIZED (text))
3293 realize_property (text, prop);
3299 destroy_text_property (TextProperty *prop)
3302 text_font_unref (prop->font);
3304 g_mem_chunk_free (text_property_chunk, prop);
3307 /* Flop the memory between the point and the gap around like a
3310 move_gap (GtkSText* text, guint index)
3312 if (text->gap_position < index)
3314 gint diff = index - text->gap_position;
3316 if (text->use_wchar)
3317 g_memmove (text->text.wc + text->gap_position,
3318 text->text.wc + text->gap_position + text->gap_size,
3319 diff*sizeof (GdkWChar));
3321 g_memmove (text->text.ch + text->gap_position,
3322 text->text.ch + text->gap_position + text->gap_size,
3325 text->gap_position = index;
3327 else if (text->gap_position > index)
3329 gint diff = text->gap_position - index;
3331 if (text->use_wchar)
3332 g_memmove (text->text.wc + index + text->gap_size,
3333 text->text.wc + index,
3334 diff*sizeof (GdkWChar));
3336 g_memmove (text->text.ch + index + text->gap_size,
3337 text->text.ch + index,
3340 text->gap_position = index;
3344 /* Increase the gap size. */
3346 make_forward_space (GtkSText* text, guint len)
3348 if (text->gap_size < len)
3350 guint sum = MAX(2*len, MIN_GAP_SIZE) + text->text_end;
3352 if (sum >= text->text_len)
3356 while (i <= sum) i <<= 1;
3358 if (text->use_wchar)
3359 text->text.wc = (GdkWChar *)g_realloc(text->text.wc,
3360 i*sizeof(GdkWChar));
3362 text->text.ch = (guchar *)g_realloc(text->text.ch, i);
3366 if (text->use_wchar)
3367 g_memmove (text->text.wc + text->gap_position + text->gap_size + 2*len,
3368 text->text.wc + text->gap_position + text->gap_size,
3369 (text->text_end - (text->gap_position + text->gap_size))
3372 g_memmove (text->text.ch + text->gap_position + text->gap_size + 2*len,
3373 text->text.ch + text->gap_position + text->gap_size,
3374 text->text_end - (text->gap_position + text->gap_size));
3376 text->text_end += len*2;
3377 text->gap_size += len*2;
3381 /* Inserts into the text property list a list element that guarantees
3382 * that for len characters following the point, text has the correct
3383 * property. does not move point. adjusts text_properties_point and
3384 * text_properties_point_offset relative to the current value of
3387 insert_text_property (GtkSText* text, GdkFont* font,
3388 GdkColor *fore, GdkColor* back, guint len)
3390 GtkSPropertyMark *mark = &text->point;
3391 TextProperty* forward_prop = MARK_CURRENT_PROPERTY(mark);
3392 TextProperty* backward_prop = MARK_PREV_PROPERTY(mark);
3394 if (MARK_OFFSET(mark) == 0)
3396 /* Point is on the boundary of two properties.
3397 * If it is the same as either, grow, else insert
3400 if (text_properties_equal(forward_prop, font, fore, back))
3402 /* Grow the property in front of us. */
3404 MARK_PROPERTY_LENGTH(mark) += len;
3406 else if (backward_prop &&
3407 text_properties_equal(backward_prop, font, fore, back))
3409 /* Grow property behind us, point property and offset
3412 SET_PROPERTY_MARK (&text->point,
3413 MARK_PREV_LIST_PTR (mark),
3414 backward_prop->length);
3416 backward_prop->length += len;
3418 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3419 (forward_prop->length == 1))
3421 /* Next property just has last position, take it over */
3423 if (GTK_WIDGET_REALIZED (text))
3424 unrealize_property (text, forward_prop);
3426 forward_prop->flags = 0;
3429 forward_prop->flags |= PROPERTY_FONT;
3430 forward_prop->font = get_text_font (font);
3433 forward_prop->font = NULL;
3437 forward_prop->flags |= PROPERTY_FOREGROUND;
3438 forward_prop->fore_color = *fore;
3442 forward_prop->flags |= PROPERTY_BACKGROUND;
3443 forward_prop->back_color = *back;
3445 forward_prop->length += len;
3447 if (GTK_WIDGET_REALIZED (text))
3448 realize_property (text, forward_prop);
3452 /* Splice a new property into the list. */
3454 GList* new_prop = g_list_alloc();
3456 new_prop->next = MARK_LIST_PTR(mark);
3457 new_prop->prev = MARK_PREV_LIST_PTR(mark);
3458 new_prop->next->prev = new_prop;
3461 new_prop->prev->next = new_prop;
3463 new_prop->data = new_text_property (text, font, fore, back, len);
3465 SET_PROPERTY_MARK (mark, new_prop, 0);
3470 /* The following will screw up the line_start cache,
3471 * we'll fix it up in correct_cache_insert
3474 /* In the middle of forward_prop, if properties are equal,
3475 * just add to its length, else split it into two and splice
3477 if (text_properties_equal (forward_prop, font, fore, back))
3479 forward_prop->length += len;
3481 else if ((MARK_NEXT_LIST_PTR(mark) == NULL) &&
3482 (MARK_OFFSET(mark) + 1 == forward_prop->length))
3484 /* Inserting before only the last position in the text */
3487 forward_prop->length -= 1;
3489 new_prop = g_list_alloc();
3490 new_prop->data = new_text_property (text, font, fore, back, len+1);
3491 new_prop->prev = MARK_LIST_PTR(mark);
3492 new_prop->next = NULL;
3493 MARK_NEXT_LIST_PTR(mark) = new_prop;
3495 SET_PROPERTY_MARK (mark, new_prop, 0);
3499 GList* new_prop = g_list_alloc();
3500 GList* new_prop_forward = g_list_alloc();
3501 gint old_length = forward_prop->length;
3502 GList* next = MARK_NEXT_LIST_PTR(mark);
3504 /* Set the new lengths according to where they are split. Construct
3505 * two new properties. */
3506 forward_prop->length = MARK_OFFSET(mark);
3508 new_prop_forward->data =
3509 new_text_property(text,
3510 forward_prop->flags & PROPERTY_FONT ?
3511 forward_prop->font->gdk_font : NULL,
3512 forward_prop->flags & PROPERTY_FOREGROUND ?
3513 &forward_prop->fore_color : NULL,
3514 forward_prop->flags & PROPERTY_BACKGROUND ?
3515 &forward_prop->back_color : NULL,
3516 old_length - forward_prop->length);
3518 new_prop->data = new_text_property(text, font, fore, back, len);
3520 /* Now splice things in. */
3521 MARK_NEXT_LIST_PTR(mark) = new_prop;
3522 new_prop->prev = MARK_LIST_PTR(mark);
3524 new_prop->next = new_prop_forward;
3525 new_prop_forward->prev = new_prop;
3527 new_prop_forward->next = next;
3530 next->prev = new_prop_forward;
3532 SET_PROPERTY_MARK (mark, new_prop, 0);
3536 while (text->text_properties_end->next)
3537 text->text_properties_end = text->text_properties_end->next;
3539 while (text->text_properties->prev)
3540 text->text_properties = text->text_properties->prev;
3544 delete_text_property (GtkSText* text, guint nchars)
3546 /* Delete nchars forward from point. */
3548 /* Deleting text properties is problematical, because we
3549 * might be storing around marks pointing to a property.
3551 * The marks in question and how we handle them are:
3553 * point: We know the new value, since it will be at the
3554 * end of the deleted text, and we move it there
3556 * cursor: We just remove the mark and set it equal to the
3557 * point after the operation.
3558 * line-start cache: We replace most affected lines.
3559 * The current line gets used to fetch the new
3560 * lines so, if necessary, (delete at the beginning
3561 * of a line) we fix it up by setting it equal to the
3569 for(; nchars; nchars -= 1)
3571 prop = MARK_CURRENT_PROPERTY(&text->point);
3575 if (prop->length == 0)
3577 tmp = MARK_LIST_PTR (&text->point);
3579 is_first = tmp == text->text_properties;
3581 MARK_LIST_PTR (&text->point) = g_list_remove_link (tmp, tmp);
3582 text->point.offset = 0;
3584 if (GTK_WIDGET_REALIZED (text))
3585 unrealize_property (text, prop);
3587 destroy_text_property (prop);
3588 g_list_free_1 (tmp);
3590 prop = MARK_CURRENT_PROPERTY (&text->point);
3593 text->text_properties = MARK_LIST_PTR (&text->point);
3595 g_assert (prop->length != 0);
3597 else if (prop->length == text->point.offset)
3599 MARK_LIST_PTR (&text->point) = MARK_NEXT_LIST_PTR (&text->point);
3600 text->point.offset = 0;
3604 /* Check to see if we have just the single final position remaining
3605 * along in a property; if so, combine it with the previous property
3607 if (LAST_INDEX (text, text->point) &&
3608 (MARK_OFFSET (&text->point) == 0) &&
3609 (MARK_PREV_LIST_PTR(&text->point) != NULL))
3611 tmp = MARK_LIST_PTR (&text->point);
3612 prop = MARK_CURRENT_PROPERTY(&text->point);
3614 MARK_LIST_PTR (&text->point) = MARK_PREV_LIST_PTR (&text->point);
3615 MARK_CURRENT_PROPERTY(&text->point)->length += 1;
3616 MARK_NEXT_LIST_PTR(&text->point) = NULL;
3618 text->point.offset = MARK_CURRENT_PROPERTY(&text->point)->length - 1;
3620 if (GTK_WIDGET_REALIZED (text))
3621 unrealize_property (text, prop);
3623 destroy_text_property (prop);
3624 g_list_free_1 (tmp);
3629 init_properties (GtkSText *text)
3631 if (!text->text_properties)
3633 text->text_properties = g_list_alloc();
3634 text->text_properties->next = NULL;
3635 text->text_properties->prev = NULL;
3636 text->text_properties->data = new_text_property (text, NULL, NULL, NULL, 1);
3637 text->text_properties_end = text->text_properties;
3639 SET_PROPERTY_MARK (&text->point, text->text_properties, 0);
3641 text->point.index = 0;
3646 /**********************************************************************/
3647 /* Property Movement */
3648 /**********************************************************************/
3651 move_mark_n (GtkSPropertyMark* mark, gint n)
3654 advance_mark_n(mark, n);
3656 decrement_mark_n(mark, -n);
3660 advance_mark (GtkSPropertyMark* mark)
3662 TextProperty* prop = MARK_CURRENT_PROPERTY (mark);
3666 if (prop->length > mark->offset + 1)
3670 mark->property = MARK_NEXT_LIST_PTR (mark);
3676 advance_mark_n (GtkSPropertyMark* mark, gint n)
3683 i = 0; /* otherwise it migth not be init. */
3684 prop = MARK_CURRENT_PROPERTY(mark);
3686 if ((prop->length - mark->offset - 1) < n) { /* if we need to change prop. */
3687 /* to make it easier */
3688 n += (mark->offset);
3689 mark->index -= mark->offset;
3691 /* first we take seven-mile-leaps to get to the right text
3693 while ((n-i) > prop->length - 1) {
3695 mark->index += prop->length;
3696 mark->property = MARK_NEXT_LIST_PTR (mark);
3697 prop = MARK_CURRENT_PROPERTY (mark);
3701 /* and then the rest */
3702 mark->index += n - i;
3703 mark->offset += n - i;
3707 decrement_mark (GtkSPropertyMark* mark)
3711 if (mark->offset > 0)
3715 mark->property = MARK_PREV_LIST_PTR (mark);
3716 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3721 decrement_mark_n (GtkSPropertyMark* mark, gint n)
3725 while (mark->offset < n) {
3726 /* jump to end of prev */
3727 n -= mark->offset + 1;
3728 mark->index -= mark->offset + 1;
3729 mark->property = MARK_PREV_LIST_PTR (mark);
3730 mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1;
3738 static GtkSPropertyMark
3739 find_mark (GtkSText* text, guint mark_position)
3741 return find_mark_near (text, mark_position, &text->point);
3745 * You can also start from the end, what a drag.
3747 static GtkSPropertyMark
3748 find_mark_near (GtkSText* text, guint mark_position, const GtkSPropertyMark* near)
3753 GtkSPropertyMark mark;
3756 diffa = mark_position + 1;
3758 diffa = mark_position - near->index;
3760 diffb = mark_position;
3772 mark.property = text->text_properties;
3776 move_mark_n (&mark, mark_position - mark.index);
3781 /* This routine must be called with scroll == FALSE, only when
3782 * point is at least partially on screen
3786 find_line_containing_point (GtkSText* text, guint point,
3792 text->current_line = NULL;
3796 /* Scroll backwards until the point is on screen
3798 while (CACHE_DATA(text->line_start_cache).start.index > point)
3799 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache)));
3801 /* Now additionally try to make sure that the point is fully on screen
3805 while (text->first_cut_pixels != 0 &&
3806 text->line_start_cache->next &&
3807 CACHE_DATA(text->line_start_cache->next).start.index > point)
3808 scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache->next)));
3811 gdk_window_get_size (text->text_area, NULL, &height);
3813 for (cache = text->line_start_cache; cache; cache = cache->next)
3817 if (CACHE_DATA(cache).end.index >= point ||
3818 LAST_INDEX(text, CACHE_DATA(cache).end))
3820 text->current_line = cache; /* LOOK HERE, this proc has an
3821 * important side effect. */
3825 TEXT_SHOW_LINE (text, cache, "cache");
3827 if (cache->next == NULL)
3828 fetch_lines_forward (text, 1);
3832 lph = pixel_height_of (text, cache->next);
3834 /* Scroll the bottom of the line is on screen, or until
3835 * the line is the first onscreen line.
3837 while (cache->next != text->line_start_cache && lph > height)
3839 TEXT_SHOW_LINE (text, cache, "cache");
3840 TEXT_SHOW_LINE (text, cache->next, "cache->next");
3841 scroll_int (text, LINE_HEIGHT(CACHE_DATA(cache->next)));
3842 lph = pixel_height_of (text, cache->next);
3847 g_assert_not_reached (); /* Must set text->current_line here */
3851 pixel_height_of (GtkSText* text, GList* cache_line)
3853 gint pixels = - text->first_cut_pixels;
3854 GList *cache = text->line_start_cache;
3857 pixels += LINE_HEIGHT (CACHE_DATA(cache));
3859 if (cache->data == cache_line->data)
3862 cache = cache->next;
3868 /**********************************************************************/
3869 /* Search and Placement */
3870 /**********************************************************************/
3873 find_char_width (GtkSText* text, const GtkSPropertyMark *mark, const TabStopMark *tab_mark)
3876 gint16* char_widths;
3878 if (LAST_INDEX (text, *mark))
3881 ch = GTK_STEXT_INDEX (text, mark->index);
3882 char_widths = MARK_CURRENT_TEXT_FONT (text, mark)->char_widths;
3886 return tab_mark->to_next_tab * char_widths[' '];
3888 else if (!text->use_wchar)
3890 return char_widths[ch];
3894 return gdk_char_width_wc(MARK_CURRENT_TEXT_FONT(text, mark)->gdk_font, ch);
3899 advance_tab_mark (GtkSText* text, TabStopMark* tab_mark, GdkWChar ch)
3901 if (tab_mark->to_next_tab == 1 || ch == '\t')
3903 if (tab_mark->tab_stops->next)
3905 tab_mark->tab_stops = tab_mark->tab_stops->next;
3906 tab_mark->to_next_tab = (gulong) tab_mark->tab_stops->data;
3910 tab_mark->to_next_tab = text->default_tab_width;
3915 tab_mark->to_next_tab -= 1;
3920 advance_tab_mark_n (GtkSText* text, TabStopMark* tab_mark, gint n)
3924 advance_tab_mark (text, tab_mark, 0);
3928 find_cursor_at_line (GtkSText* text, const LineParams* start_line, gint pixel_height)
3931 GtkEditable *editable = (GtkEditable *)text;
3933 GtkSPropertyMark mark = start_line->start;
3934 TabStopMark tab_mark = start_line->tab_cont.tab_start;
3935 gint pixel_width = LINE_START_PIXEL (*start_line);
3937 while (mark.index < text->cursor_mark.index)
3939 pixel_width += find_char_width (text, &mark, &tab_mark);
3941 advance_tab_mark (text, &tab_mark, GTK_STEXT_INDEX(text, mark.index));
3942 advance_mark (&mark);
3945 text->cursor_pos_x = pixel_width;
3946 text->cursor_pos_y = pixel_height;
3947 text->cursor_char_offset = start_line->font_descent;
3948 text->cursor_mark = mark;
3950 ch = LAST_INDEX (text, mark) ?
3951 LINE_DELIM : GTK_STEXT_INDEX (text, mark.index);
3953 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
3954 text->cursor_char = 0;
3956 text->cursor_char = ch;
3958 #ifdef USE_GTKGDK_XIM
3959 if (GTK_WIDGET_HAS_FOCUS(text) && gdk_im_ready() && editable->ic &&
3960 (gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION))
3962 GdkICAttributesType mask = GDK_IC_SPOT_LOCATION |
3963 GDK_IC_PREEDIT_FOREGROUND |
3964 GDK_IC_PREEDIT_BACKGROUND;
3966 editable->ic_attr->spot_location.x = text->cursor_pos_x;
3967 editable->ic_attr->spot_location.y
3968 = text->cursor_pos_y - text->cursor_char_offset;
3969 editable->ic_attr->preedit_foreground = *MARK_CURRENT_FORE (text, &mark);
3970 editable->ic_attr->preedit_background = *MARK_CURRENT_BACK (text, &mark);
3972 if (MARK_CURRENT_FONT (text, &mark)->type == GDK_FONT_FONTSET)
3974 mask |= GDK_IC_PREEDIT_FONTSET;
3975 editable->ic_attr->preedit_fontset = MARK_CURRENT_FONT (text, &mark);
3978 gdk_ic_set_attr (editable->ic, editable->ic_attr, mask);
3984 find_cursor (GtkSText* text, gboolean scroll)
3986 if (GTK_WIDGET_REALIZED (text))
3988 find_line_containing_point (text, text->cursor_mark.index, scroll);
3990 if (text->current_line)
3991 find_cursor_at_line (text,
3992 &CACHE_DATA(text->current_line),
3993 pixel_height_of(text, text->current_line));
3996 GTK_EDITABLE (text)->current_pos = text->cursor_mark.index;
4000 find_mouse_cursor_at_line (GtkSText *text, const LineParams* lp,
4001 guint line_pixel_height,
4004 GtkSPropertyMark mark = lp->start;
4005 TabStopMark tab_mark = lp->tab_cont.tab_start;
4007 gint char_width = find_char_width(text, &mark, &tab_mark);
4008 gint pixel_width = LINE_START_PIXEL (*lp) + (char_width+1)/2;
4010 text->cursor_pos_y = line_pixel_height;
4014 GdkWChar ch = LAST_INDEX (text, mark) ?
4015 LINE_DELIM : GTK_STEXT_INDEX (text, mark.index);
4017 if (button_x < pixel_width || mark.index == lp->end.index)
4019 text->cursor_pos_x = pixel_width - (char_width+1)/2;
4020 text->cursor_mark = mark;
4021 text->cursor_char_offset = lp->font_descent;
4023 if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch))
4024 text->cursor_char = 0;
4026 text->cursor_char = ch;
4031 advance_tab_mark (text, &tab_mark, ch);
4032 advance_mark (&mark);
4034 pixel_width += char_width/2;
4036 char_width = find_char_width (text, &mark, &tab_mark);
4038 pixel_width += (char_width+1)/2;
4043 find_mouse_cursor (GtkSText* text, gint x, gint y)
4046 GList* cache = text->line_start_cache;
4050 pixel_height = - text->first_cut_pixels;
4052 for (; cache; cache = cache->next)
4054 pixel_height += LINE_HEIGHT(CACHE_DATA(cache));
4056 if (y < pixel_height || !cache->next)
4058 find_mouse_cursor_at_line (text, &CACHE_DATA(cache), pixel_height, x);
4060 find_cursor (text, FALSE);
4067 /**********************************************************************/
4069 /**********************************************************************/
4072 free_cache (GtkSText* text)
4074 GList* cache = text->line_start_cache;
4079 cache = cache->prev;
4081 text->line_start_cache = cache;
4084 for (; cache; cache = cache->next)
4085 g_mem_chunk_free (params_mem_chunk, cache->data);
4087 g_list_free (text->line_start_cache);
4089 text->line_start_cache = NULL;
4093 remove_cache_line (GtkSText* text, GList* member)
4100 if (member == text->line_start_cache)
4101 text->line_start_cache = text->line_start_cache->next;
4104 member->prev->next = member->next;
4107 member->next->prev = member->prev;
4109 list = member->next;
4111 g_mem_chunk_free (params_mem_chunk, member->data);
4112 g_list_free_1 (member);
4117 /**********************************************************************/
4119 /**********************************************************************/
4122 move_cursor_buffer_ver (GtkSText *text, int dir)
4124 undraw_cursor (text, FALSE);
4128 scroll_int (text, text->vadj->upper);
4129 text->cursor_mark = find_this_line_start_mark (text,
4131 &text->cursor_mark);
4135 scroll_int (text, - text->vadj->value);
4136 text->cursor_mark = find_this_line_start_mark (text,
4138 &text->cursor_mark);
4141 find_cursor (text, TRUE);
4142 draw_cursor (text, FALSE);
4146 move_cursor_page_ver (GtkSText *text, int dir)
4148 scroll_int (text, dir * text->vadj->page_increment);
4152 move_cursor_ver (GtkSText *text, int count)
4155 GtkSPropertyMark mark;
4158 mark = find_this_line_start_mark (text, text->cursor_mark.index, &text->cursor_mark);
4159 offset = text->cursor_mark.index - mark.index;
4161 if (offset > text->cursor_virtual_x)
4162 text->cursor_virtual_x = offset;
4166 if (mark.index == 0)
4169 decrement_mark (&mark);
4170 mark = find_this_line_start_mark (text, mark.index, &mark);
4174 mark = text->cursor_mark;
4176 while (!LAST_INDEX(text, mark) && GTK_STEXT_INDEX(text, mark.index) != LINE_DELIM)
4177 advance_mark (&mark);
4179 if (LAST_INDEX(text, mark))
4182 advance_mark (&mark);
4185 for (i=0; i < text->cursor_virtual_x; i += 1, advance_mark(&mark))
4186 if (LAST_INDEX(text, mark) ||
4187 GTK_STEXT_INDEX(text, mark.index) == LINE_DELIM)
4190 undraw_cursor (text, FALSE);
4192 text->cursor_mark = mark;
4194 find_cursor (text, TRUE);
4196 draw_cursor (text, FALSE);
4200 move_cursor_hor (GtkSText *text, int count)
4202 /* count should be +-1. */
4203 if ( (count > 0 && text->cursor_mark.index + count > TEXT_LENGTH(text)) ||
4204 (count < 0 && text->cursor_mark.index < (- count)) ||
4208 text->cursor_virtual_x = 0;
4210 undraw_cursor (text, FALSE);
4212 move_mark_n (&text->cursor_mark, count);
4214 find_cursor (text, TRUE);
4216 draw_cursor (text, FALSE);
4219 /* SYLPHEED - the default cursor movement of GtkText is aeons ahead of the
4220 * current technology level of the current generation of programmers and
4221 * end users. so sylpheed has to take a more mundane approach to editing.
4224 * move_cursor_to_display_row_end() (end of display line)
4225 * move_cursor_to_display_row_home() (home of display line)
4226 * move_cursor_to_display_row_up() (line up)
4227 * move_cursor_to_display_row_down() (line down)
4231 * SYLPHEED_TODO: for some reason the line fetcher also returns markers
4232 * of just one character! should investigate this... -- alfons
4235 static void move_cursor_to_display_row_end(GtkSText *text)
4237 LineParams lp = CACHE_DATA(text->current_line);
4238 int to_move = (lp.end.index - text->cursor_mark.index);
4240 /* advance this much */
4242 move_cursor_hor(text, to_move);
4246 static void move_cursor_to_display_row_start(GtkSText *text)
4248 LineParams lp = CACHE_DATA(text->current_line);
4249 int to_move = (text->cursor_mark.index - lp.start.index);
4251 move_cursor_hor(text, -to_move);
4256 static gboolean range_intersect(guint x1, guint x2, guint y1, guint y2)
4259 if (x1 > x2) { tmp = x1; x1 = x2; x2 = tmp; }
4260 if (y1 > y2) { tmp = y1; y1 = y2; y1 = tmp; }
4261 if (y1 < x1) { tmp = x1; x1 = y1; y1 = tmp; tmp = x2; x2 = y2; y2 = tmp; }
4271 static gint back_display_row_fetcher(GtkSText *text,
4275 if (range_intersect(data->start, data->end, params->start.index, params->end.index)) {
4276 XDEBUG( ("%s(%d) - FOUND search (%d, %d), current (%d, %d)", __FILE__, __LINE__,
4277 data->start, data->end,
4278 params->start.index, params->end.index) );
4283 XDEBUG( ("%s(%d) - NEXT search (%d, %d), current (%d, %d)", __FILE__, __LINE__,
4284 data->start, data->end,
4285 params->start.index, params->end.index) );
4291 static void move_cursor_to_display_row_up(GtkSText *text)
4297 GtkSPropertyMark mark;
4299 mark = find_this_line_start_mark(text, text->cursor_mark.index, &text->cursor_mark);
4302 if (mark.index == 0) {
4303 XDEBUG ( ("%s(%d) top of buffer", __FILE__, __LINE__) );
4306 /* we need previous DISPLAY row not the previous BUFFER line, so we go to start
4307 * of paragraph, and iterate over the lines until we have a LineParams that matches
4309 lp = CACHE_DATA(text->current_line);
4310 col = (text->cursor_mark.index - lp.start.index);
4311 data.start = lp.start.index;
4312 data.end = lp.end.index;
4314 /* get the previous line */
4315 if (mark.index != 0) {
4316 decrement_mark(&mark);
4317 if (mark.index != 0) {
4318 GtkSPropertyMark smark = mark;
4319 XDEBUG( ("%s(%d) finding line start mark", __FILE__, __LINE__) );
4320 mark = find_this_line_start_mark(text, smark.index -1, &smark);
4324 /* let's get the previous display line */
4325 XDEBUG( ("%s(%d) iterating to get display lines", __FILE__, __LINE__) );
4326 line_params_iterate(text, &mark, NULL, FALSE, &data,
4327 (LineIteratorFunction)back_display_row_fetcher);
4328 XDEBUG( ("%s(%d) done iterating. found = %d", __FILE__, __LINE__, data.found) );
4331 if (col < text->persist_column) col = text->persist_column;
4332 else text->persist_column = col;
4333 new_index = data.lp.start.index + col;
4334 XDEBUG( ("%s(%d) - new index = %d", __FILE__, __LINE__, new_index) );
4335 if (new_index > data.lp.end.index) {
4336 new_index = data.lp.end.index;
4338 /* and move the cursor */
4339 XDEBUG( ("%s(%d) - setting index", __FILE__, __LINE__) );
4340 gtk_stext_set_position_X(GTK_EDITABLE(text), new_index);
4351 #if defined(AHX_DEBUG)
4352 static void print_line(GtkSText *text, guint start, guint end)
4354 gchar *buf = alloca(2048), *walk = buf;
4356 memset(buf, 0, 2048);
4357 for (; start <= end; start++) {
4358 *walk++ = GTK_STEXT_INDEX(text, start);
4360 XDEBUG( ("%s", buf) );
4364 static gint forward_display_row_fetcher(GtkSText *text,
4369 XDEBUG( ("%s(%d) - FW RETURNS. search (%d, %d), current (%d, %d)",
4370 __FILE__, __LINE__, data->start, data->end, lp->start.index, lp->end.index) );
4372 data->completed = TRUE;
4373 print_line(text, lp->start.index, lp->end.index);
4376 else if (range_intersect(data->start, data->end, lp->start.index, lp->end.index)) {
4377 XDEBUG( ("%s(%d) - FW FOUND IT. search (%d, %d), current (%d, %d)",
4378 __FILE__, __LINE__, data->start, data->end, lp->start.index, lp->end.index) );
4387 static void move_cursor_to_display_row_down (GtkSText *text)
4392 GtkSPropertyMark mark;
4393 fdrf data = { FALSE, FALSE };
4395 mark = find_this_line_start_mark(text, text->cursor_mark.index, &text->cursor_mark);
4396 lp = CACHE_DATA(text->current_line);
4397 col = (text->cursor_mark.index - lp.start.index);
4399 data.start = lp.start.index;
4400 data.end = lp.end.index;
4402 /* find the next DISPLAY line */
4403 XDEBUG( ("%s(%d) - FW iterating", __FILE__, __LINE__) ) ;
4404 line_params_iterate(text, &mark, NULL, FALSE, &data,
4405 (LineIteratorFunction)forward_display_row_fetcher);
4406 XDEBUG( ("%s(%d) - FW done iterating", __FILE__, __LINE__) );
4408 if (data.completed) {
4409 if (col < text->persist_column) col = text->persist_column;
4410 else text->persist_column = col;
4411 new_index = data.lp.start.index + col;
4412 if (new_index > data.lp.end.index) {
4413 new_index = data.lp.end.index;
4415 /* and move the cursor */
4416 XDEBUG( ("%s(%d) - FW set pos %d", __FILE__, __LINE__, new_index) );
4417 gtk_stext_set_position_X(GTK_EDITABLE(text), new_index);
4421 static void reset_persist_col_pos(GtkSText *text)
4423 text->persist_column = 0;
4427 gtk_stext_move_cursor (GtkEditable *editable,
4434 move_cursor_hor (GTK_STEXT (editable), 1);
4439 move_cursor_hor (GTK_STEXT (editable), -1);
4445 move_cursor_ver (GTK_STEXT (editable), 1);
4450 move_cursor_ver (GTK_STEXT (editable), -1);
4455 gtk_stext_move_forward_character (GtkSText *text)
4457 move_cursor_hor (text, 1);
4461 gtk_stext_move_backward_character (GtkSText *text)
4463 move_cursor_hor (text, -1);
4467 gtk_stext_move_next_line (GtkSText *text)
4469 move_cursor_ver (text, 1);
4473 gtk_stext_move_previous_line (GtkSText *text)
4475 move_cursor_ver (text, -1);
4479 gtk_stext_move_word (GtkEditable *editable,
4485 gtk_stext_move_forward_word (GTK_STEXT (editable));
4490 gtk_stext_move_backward_word (GTK_STEXT (editable));
4495 gtk_stext_move_forward_word (GtkSText *text)
4497 text->cursor_virtual_x = 0;
4499 undraw_cursor (text, FALSE);
4501 if (text->use_wchar)
4503 while (!LAST_INDEX (text, text->cursor_mark) &&
4504 !gdk_iswalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index)))
4505 advance_mark (&text->cursor_mark);
4507 while (!LAST_INDEX (text, text->cursor_mark) &&
4508 gdk_iswalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index)))
4509 advance_mark (&text->cursor_mark);
4513 while (!LAST_INDEX (text, text->cursor_mark) &&
4514 !isalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index)))
4515 advance_mark (&text->cursor_mark);
4517 while (!LAST_INDEX (text, text->cursor_mark) &&
4518 isalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index)))
4519 advance_mark (&text->cursor_mark);
4522 find_cursor (text, TRUE);
4523 draw_cursor (text, FALSE);
4527 gtk_stext_move_backward_word (GtkSText *text)
4529 text->cursor_virtual_x = 0;
4531 undraw_cursor (text, FALSE);
4533 if (text->use_wchar)
4535 while ((text->cursor_mark.index > 0) &&
4536 !gdk_iswalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index-1)))
4537 decrement_mark (&text->cursor_mark);
4539 while ((text->cursor_mark.index > 0) &&
4540 gdk_iswalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index-1)))
4541 decrement_mark (&text->cursor_mark);
4545 while ((text->cursor_mark.index > 0) &&
4546 !isalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index-1)))
4547 decrement_mark (&text->cursor_mark);
4549 while ((text->cursor_mark.index > 0) &&
4550 isalnum (GTK_STEXT_INDEX(text, text->cursor_mark.index-1)))
4551 decrement_mark (&text->cursor_mark);
4554 find_cursor (text, TRUE);
4555 draw_cursor (text, FALSE);
4559 gtk_stext_move_page (GtkEditable *editable,
4564 scroll_int (GTK_STEXT (editable),
4565 y * GTK_STEXT(editable)->vadj->page_increment);
4569 gtk_stext_move_to_row (GtkEditable *editable,
4575 gtk_stext_move_to_column (GtkEditable *editable,
4580 text = GTK_STEXT (editable);
4582 text->cursor_virtual_x = 0; /* FIXME */
4584 undraw_cursor (text, FALSE);
4586 /* Move to the beginning of the line */
4587 while ((text->cursor_mark.index > 0) &&
4588 (GTK_STEXT_INDEX (text, text->cursor_mark.index - 1) != LINE_DELIM))
4589 decrement_mark (&text->cursor_mark);
4591 while (!LAST_INDEX (text, text->cursor_mark) &&
4592 (GTK_STEXT_INDEX (text, text->cursor_mark.index) != LINE_DELIM))
4596 else if (column == 0)
4599 advance_mark (&text->cursor_mark);
4602 find_cursor (text, TRUE);
4603 draw_cursor (text, FALSE);
4607 gtk_stext_move_beginning_of_line (GtkSText *text)
4609 gtk_stext_move_to_column (GTK_EDITABLE (text), 0);
4614 gtk_stext_move_end_of_line (GtkSText *text)
4616 gtk_stext_move_to_column (GTK_EDITABLE (text), -1);
4620 gtk_stext_kill_char (GtkEditable *editable,
4625 text = GTK_STEXT (editable);
4627 if (editable->selection_start_pos != editable->selection_end_pos)
4628 gtk_editable_delete_selection (editable);
4633 if (text->point.index + 1 <= TEXT_LENGTH (text))
4634 gtk_editable_delete_text (editable, text->point.index, text->point.index + 1);
4638 if (text->point.index > 0)
4639 gtk_editable_delete_text (editable, text->point.index - 1, text->point.index);
4645 gtk_stext_delete_forward_character (GtkSText *text)
4647 gtk_stext_kill_char (GTK_EDITABLE (text), 1);
4651 gtk_stext_delete_backward_character (GtkSText *text)
4653 gtk_stext_kill_char (GTK_EDITABLE (text), -1);
4657 gtk_stext_kill_word (GtkEditable *editable,
4660 if (editable->selection_start_pos != editable->selection_end_pos) {
4661 gtk_editable_delete_selection (editable);
4665 gint old_pos = editable->current_pos;
4668 gtk_stext_move_word (editable, 1);
4669 gtk_editable_delete_text (editable, old_pos, editable->current_pos);
4673 gtk_stext_move_word (editable, -1);
4674 gtk_editable_delete_text (editable, editable->current_pos, old_pos);
4680 gtk_stext_delete_forward_word (GtkSText *text)
4682 gtk_stext_kill_word (GTK_EDITABLE (text), 1);
4686 gtk_stext_delete_backward_word (GtkSText *text)
4688 gtk_stext_kill_word (GTK_EDITABLE (text), -1);
4692 gtk_stext_kill_line (GtkEditable *editable,
4695 gint old_pos = editable->current_pos;
4698 gtk_stext_move_to_column (editable, -1);
4699 gtk_editable_delete_text (editable, old_pos, editable->current_pos);
4703 gtk_stext_move_to_column (editable, 0);
4704 gtk_editable_delete_text (editable, editable->current_pos, old_pos);
4709 gtk_stext_delete_line (GtkSText *text)
4711 gtk_stext_move_to_column (GTK_EDITABLE (text), 0);
4712 gtk_stext_kill_line (GTK_EDITABLE (text), 1);
4716 gtk_stext_delete_to_line_end (GtkSText *text)
4718 gtk_stext_kill_line (GTK_EDITABLE (text), 1);
4722 gtk_stext_select_word (GtkSText *text, guint32 time)
4727 GtkEditable *editable;
4728 editable = GTK_EDITABLE (text);
4730 gtk_stext_move_backward_word (text);
4731 start_pos = text->cursor_mark.index;
4733 gtk_stext_move_forward_word (text);
4734 end_pos = text->cursor_mark.index;
4736 editable->has_selection = TRUE;
4737 gtk_stext_set_selection (editable, start_pos, end_pos);
4738 gtk_editable_claim_selection (editable, start_pos != end_pos, time);
4742 gtk_stext_select_line (GtkSText *text, guint32 time)
4747 GtkEditable *editable;
4748 editable = GTK_EDITABLE (text);
4750 gtk_stext_move_beginning_of_line (text);
4751 start_pos = text->cursor_mark.index;
4753 gtk_stext_move_end_of_line (text);
4754 gtk_stext_move_forward_character (text);
4755 end_pos = text->cursor_mark.index;
4757 editable->has_selection = TRUE;
4758 gtk_stext_set_selection (editable, start_pos, end_pos);
4759 gtk_editable_claim_selection (editable, start_pos != end_pos, time);
4762 /**********************************************************************/
4764 /**********************************************************************/
4767 adjust_adj (GtkSText* text, GtkAdjustment* adj)
4771 gdk_window_get_size (text->text_area, NULL, &height);
4773 adj->step_increment = MIN (adj->upper, (float) SCROLL_PIXELS);
4774 adj->page_increment = MIN (adj->upper, height - (float) KEY_SCROLL_PIXELS);
4775 adj->page_size = MIN (adj->upper, height);
4776 adj->value = MIN (adj->value, adj->upper - adj->page_size);
4777 adj->value = MAX (adj->value, 0.0);
4779 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
4783 set_vertical_scroll_iterator (GtkSText* text, LineParams* lp, void* data)
4785 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4787 if ((text->first_line_start_index >= lp->start.index) &&
4788 (text->first_line_start_index <= lp->end.index))
4790 svdata->mark = lp->start;
4792 if (text->first_line_start_index == lp->start.index)
4794 text->first_onscreen_ver_pixel = svdata->pixel_height + text->first_cut_pixels;
4798 text->first_onscreen_ver_pixel = svdata->pixel_height;
4799 text->first_cut_pixels = 0;
4802 text->vadj->value = (float) text->first_onscreen_ver_pixel;
4805 svdata->pixel_height += LINE_HEIGHT (*lp);
4811 set_vertical_scroll_find_iterator (GtkSText* text, LineParams* lp, void* data)
4813 SetVerticalScrollData *svdata = (SetVerticalScrollData *) data;
4816 if (svdata->pixel_height <= (gint) text->vadj->value &&
4817 svdata->pixel_height + LINE_HEIGHT(*lp) > (gint) text->vadj->value)
4819 svdata->mark = lp->start;
4821 text->first_cut_pixels = (gint)text->vadj->value - svdata->pixel_height;
4822 text->first_onscreen_ver_pixel = svdata->pixel_height;
4823 text->first_line_start_index = lp->start.index;
4829 svdata->pixel_height += LINE_HEIGHT (*lp);
4837 static GtkSPropertyMark
4838 set_vertical_scroll (GtkSText* text)
4840 GtkSPropertyMark mark = find_mark (text, 0);
4841 SetVerticalScrollData data;
4845 data.pixel_height = 0;
4846 line_params_iterate (text, &mark, NULL, FALSE, &data, set_vertical_scroll_iterator);
4848 text->vadj->upper = (float) data.pixel_height;
4849 orig_value = (gint) text->vadj->value;
4851 gdk_window_get_size (text->text_area, NULL, &height);
4853 text->vadj->step_increment = MIN (text->vadj->upper, (float) SCROLL_PIXELS);
4854 text->vadj->page_increment = MIN (text->vadj->upper, height - (float) KEY_SCROLL_PIXELS);
4855 text->vadj->page_size = MIN (text->vadj->upper, height);
4856 text->vadj->value = MIN (text->vadj->value, text->vadj->upper - text->vadj->page_size);
4857 text->vadj->value = MAX (text->vadj->value, 0.0);
4859 text->last_ver_value = (gint)text->vadj->value;
4861 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "changed");
4863 if (text->vadj->value != orig_value)
4865 /* We got clipped, and don't really know which line to put first. */
4866 data.pixel_height = 0;
4867 data.last_didnt_wrap = TRUE;
4869 line_params_iterate (text, &mark, NULL,
4871 set_vertical_scroll_find_iterator);
4878 scroll_int (GtkSText* text, gint diff)
4882 text->vadj->value += diff;
4884 upper = text->vadj->upper - text->vadj->page_size;
4885 text->vadj->value = MIN (text->vadj->value, upper);
4886 text->vadj->value = MAX (text->vadj->value, 0.0);
4888 gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "value_changed");
4892 process_exposes (GtkSText *text)
4896 /* Make sure graphics expose events are processed before scrolling
4899 while ((event = gdk_event_get_graphics_expose (text->text_area)) != NULL)
4901 gtk_widget_event (GTK_WIDGET (text), event);
4902 if (event->expose.count == 0)
4904 gdk_event_free (event);
4907 gdk_event_free (event);
4911 static gint last_visible_line_height (GtkSText* text)
4913 GList *cache = text->line_start_cache;
4916 gdk_window_get_size (text->text_area, NULL, &height);
4918 for (; cache->next; cache = cache->next)
4919 if (pixel_height_of(text, cache->next) > height)
4923 return pixel_height_of(text, cache) - 1;
4928 static gint first_visible_line_height (GtkSText* text)
4930 if (text->first_cut_pixels)
4931 return pixel_height_of(text, text->line_start_cache) + 1;
4937 scroll_down (GtkSText* text, gint diff0)
4943 text->first_onscreen_ver_pixel += diff0;
4947 if (text->first_cut_pixels < LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1)
4949 text->first_cut_pixels += 1;
4953 text->first_cut_pixels = 0;
4955 text->line_start_cache = text->line_start_cache->next;
4956 g_assert (text->line_start_cache);
4958 text->first_line_start_index =
4959 CACHE_DATA(text->line_start_cache).start.index;
4961 if (!text->line_start_cache->next)
4962 fetch_lines_forward (text, 1);
4968 gdk_window_get_size (text->text_area, &width, &height);
4969 if (height > real_diff)
4970 gdk_draw_pixmap (text->text_area,
4978 height - real_diff);
4981 rect.y = MAX (0, height - real_diff);
4983 rect.height = MIN (height, real_diff);
4985 expose_text (text, &rect, FALSE);
4986 gtk_stext_draw_focus ( (GtkWidget *) text);
4988 if (text->current_line)
4992 text->cursor_pos_y -= real_diff;
4993 cursor_min = drawn_cursor_min(text);
4996 find_mouse_cursor (text, text->cursor_pos_x,
4997 first_visible_line_height (text));
5000 if (height > real_diff)
5001 process_exposes (text);
5005 scroll_up (GtkSText* text, gint diff0)
5011 text->first_onscreen_ver_pixel += diff0;
5015 g_assert (text->line_start_cache);
5017 if (text->first_cut_pixels > 0)
5019 text->first_cut_pixels -= 1;
5023 if (!text->line_start_cache->prev)
5024 fetch_lines_backward (text);
5026 text->line_start_cache = text->line_start_cache->prev;
5028 text->first_line_start_index =
5029 CACHE_DATA(text->line_start_cache).start.index;
5031 text->first_cut_pixels = LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1;
5037 gdk_window_get_size (text->text_area, &width, &height);
5038 if (height > real_diff)
5039 gdk_draw_pixmap (text->text_area,
5047 height - real_diff);
5052 rect.height = MIN (height, real_diff);
5054 expose_text (text, &rect, FALSE);
5055 gtk_stext_draw_focus ( (GtkWidget *) text);
5057 if (text->current_line)
5062 text->cursor_pos_y += real_diff;
5063 cursor_max = drawn_cursor_max(text);
5064 gdk_window_get_size (text->text_area, NULL, &height);
5066 if (cursor_max >= height)
5067 find_mouse_cursor (text, text->cursor_pos_x,
5068 last_visible_line_height (text));
5071 if (height > real_diff)
5072 process_exposes (text);
5075 /**********************************************************************/
5077 /**********************************************************************/
5079 /* Assumes mark starts a line. Calculates the height, width, and
5080 * displayable character count of a single DISPLAYABLE line. That
5081 * means that in line-wrap mode, this does may not compute the
5082 * properties of an entire line. */
5084 find_line_params (GtkSText* text,
5085 const GtkSPropertyMark* mark,
5086 const PrevTabCont *tab_cont,
5087 PrevTabCont *next_cont)
5090 TabStopMark tab_mark = tab_cont->tab_start;
5091 guint max_display_pixels;
5096 gdk_window_get_size (text->text_area, (gint*) &max_display_pixels, NULL);
5098 if (text->wrap_rmargin) {
5099 /* SYLPHEED - since sylpheed is a mail program, assume we work with
5100 * fixed fonts. only assume we're using one font! */
5101 font = MARK_CURRENT_FONT(text, mark);
5103 /* SYLPHEED - ok for multi byte charsets to check for ASCII char?
5105 if (text->use_wchar)
5106 ch_width = gdk_char_width_wc(font, 'W');
5108 ch_width = gdk_char_width(font, 'W');
5110 /* SYLPHEED - max_display_chars has the rmargin in pixels
5112 max_display_pixels = text->wrap_rmargin * ch_width;
5115 /* SYLPHEED - we don't draw ugly word wrapping thing
5116 * if our wrap margin is set */
5117 if (!text->wrap_rmargin &&
5118 ((GTK_EDITABLE (text)->editable || !text->word_wrap)))
5119 max_display_pixels -= LINE_WRAP_ROOM;
5122 lp.tab_cont = *tab_cont;
5125 lp.pixel_width = tab_cont->pixel_offset;
5126 lp.displayable_chars = 0;
5128 lp.font_descent = 0;
5130 init_tab_cont (text, next_cont);
5132 while (!LAST_INDEX(text, lp.end))
5134 g_assert (lp.end.property);
5136 ch = GTK_STEXT_INDEX (text, lp.end.index);
5137 font = MARK_CURRENT_FONT (text, &lp.end);
5139 if (ch == LINE_DELIM)
5141 /* Newline doesn't count in computation of line height, even
5142 * if its in a bigger font than the rest of the line. Unless,
5143 * of course, there are no other characters. */
5145 if (!lp.font_ascent && !lp.font_descent)
5147 lp.font_ascent = font->ascent;
5148 lp.font_descent = font->descent;
5151 lp.tab_cont_next = *next_cont;
5156 ch_width = find_char_width (text, &lp.end, &tab_mark);
5158 if ((ch_width + lp.pixel_width > max_display_pixels) &&
5159 (lp.end.index > lp.start.index))
5163 if (text->line_wrap)
5165 next_cont->tab_start = tab_mark;
5166 next_cont->pixel_offset = 0;
5170 /* Here's the tough case, a tab is wrapping. */
5171 gint pixels_avail = max_display_pixels - lp.pixel_width;
5172 gint space_width = MARK_CURRENT_TEXT_FONT(text, &lp.end)->char_widths[' '];
5173 gint spaces_avail = pixels_avail / space_width;
5175 if (spaces_avail == 0)
5177 decrement_mark (&lp.end);
5181 advance_tab_mark (text, &next_cont->tab_start, '\t');
5182 next_cont->pixel_offset = space_width * (tab_mark.to_next_tab -
5184 lp.displayable_chars += 1;
5189 if (text->word_wrap)
5191 GtkSPropertyMark saved_mark = lp.end;
5192 guint saved_characters = lp.displayable_chars;
5194 lp.displayable_chars += 1;
5196 if (text->use_wchar)
5198 while (!gdk_iswspace (GTK_STEXT_INDEX (text, lp.end.index)) &&
5199 (lp.end.index > lp.start.index))
5201 decrement_mark (&lp.end);
5202 lp.displayable_chars -= 1;
5207 while (!isspace(GTK_STEXT_INDEX (text, lp.end.index)) &&
5208 (lp.end.index > lp.start.index))
5210 decrement_mark (&lp.end);
5211 lp.displayable_chars -= 1;
5215 /* If whole line is one word, revert to char wrapping */
5216 if (lp.end.index == lp.start.index)
5218 /* SYLPHEED: don't wrap URLs */
5219 if (is_url_string(text, lp.end.index,
5220 gtk_stext_get_length(text)))
5222 lp.end = saved_mark;
5223 lp.displayable_chars = saved_characters + 1;
5228 lp.end = saved_mark;
5229 lp.displayable_chars = saved_characters;
5230 decrement_mark (&lp.end);
5235 /* Don't include this character, it will wrap. */
5236 decrement_mark (&lp.end);
5240 lp.tab_cont_next = *next_cont;
5247 lp.displayable_chars += 1;
5251 lp.font_ascent = MAX (font->ascent, lp.font_ascent);
5252 lp.font_descent = MAX (font->descent, lp.font_descent);
5253 lp.pixel_width += ch_width;
5255 advance_mark(&lp.end);
5256 advance_tab_mark (text, &tab_mark, ch);
5259 if (LAST_INDEX(text, lp.start))
5261 /* Special case, empty last line. */
5262 font = MARK_CURRENT_FONT (text, &lp.end);
5264 lp.font_ascent = font->ascent;
5265 lp.font_descent = font->descent;
5268 lp.tab_cont_next = *next_cont;
5274 expand_scratch_buffer (GtkSText* text, guint len)
5276 if (len >= text->scratch_buffer_len)
5280 while (i <= len && i < MIN_GAP_SIZE) i <<= 1;
5282 if (text->use_wchar)
5284 if (!text->scratch_buffer.wc)
5285 text->scratch_buffer.wc = g_new (GdkWChar, i);
5287 text->scratch_buffer.wc = g_realloc (text->scratch_buffer.wc,
5288 i * sizeof (GdkWChar));
5292 if (!text->scratch_buffer.ch)
5293 text->scratch_buffer.ch = g_new (guchar, i);
5295 text->scratch_buffer.ch = g_realloc (text->scratch_buffer.ch, i);
5298 text->scratch_buffer_len = i;
5302 /* Side effect: modifies text->gc
5306 draw_bg_rect (GtkSText* text, GtkSPropertyMark *mark,
5307 gint x, gint y, gint width, gint height,
5308 gboolean already_cleared)
5310 GtkEditable *editable = GTK_EDITABLE(text);
5312 if ((mark->index >= MIN(editable->selection_start_pos, editable->selection_end_pos) &&
5313 mark->index < MAX(editable->selection_start_pos, editable->selection_end_pos)))
5315 gtk_paint_flat_box(GTK_WIDGET(text)->style, text->text_area,
5316 editable->has_selection ?
5317 GTK_STATE_SELECTED : GTK_STATE_ACTIVE,
5319 NULL, GTK_WIDGET(text), "text",
5320 x, y, width, height);
5322 else if (!gdk_color_equal(MARK_CURRENT_BACK (text, mark),
5323 >K_WIDGET(text)->style->base[GTK_WIDGET_STATE (text)]))
5325 gdk_gc_set_foreground (text->gc, MARK_CURRENT_BACK (text, mark));
5327 gdk_draw_rectangle (text->text_area,
5329 TRUE, x, y, width, height);
5331 else if (GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL])
5338 rect.height = height;
5340 clear_area (text, &rect);
5342 else if (!already_cleared)
5343 gdk_window_clear_area (text->text_area, x, y, width, height);
5347 draw_line (GtkSText* text,
5348 gint pixel_start_height,
5351 GdkGCValues gc_values;
5354 guint running_offset = lp->tab_cont.pixel_offset;
5355 union { GdkWChar *wc; guchar *ch; } buffer;
5358 GtkEditable *editable = GTK_EDITABLE(text);
5360 guint selection_start_pos = MIN (editable->selection_start_pos, editable->selection_end_pos);
5361 guint selection_end_pos = MAX (editable->selection_start_pos, editable->selection_end_pos);
5363 GtkSPropertyMark mark = lp->start;
5364 TabStopMark tab_mark = lp->tab_cont.tab_start;
5365 gint pixel_height = pixel_start_height + lp->font_ascent;
5366 guint chars = lp->displayable_chars;
5368 /* First provide a contiguous segment of memory. This makes reading
5369 * the code below *much* easier, and only incurs the cost of copying
5370 * when the line being displayed spans the gap. */
5371 if (mark.index <= text->gap_position &&
5372 mark.index + chars > text->gap_position)
5374 expand_scratch_buffer (text, chars);
5376 if (text->use_wchar)
5378 for (i = 0; i < chars; i += 1)
5379 text->scratch_buffer.wc[i] = GTK_STEXT_INDEX(text, mark.index + i);
5380 buffer.wc = text->scratch_buffer.wc;
5384 for (i = 0; i < chars; i += 1)
5385 text->scratch_buffer.ch[i] = GTK_STEXT_INDEX(text, mark.index + i);
5386 buffer.ch = text->scratch_buffer.ch;
5391 if (text->use_wchar)
5393 if (mark.index >= text->gap_position)
5394 buffer.wc = text->text.wc + mark.index + text->gap_size;
5396 buffer.wc = text->text.wc + mark.index;
5400 if (mark.index >= text->gap_position)
5401 buffer.ch = text->text.ch + mark.index + text->gap_size;
5403 buffer.ch = text->text.ch + mark.index;
5408 if (running_offset > 0)
5410 draw_bg_rect (text, &mark, 0, pixel_start_height, running_offset,
5411 LINE_HEIGHT (*lp), TRUE);
5417 if ((text->use_wchar && buffer.wc[0] != '\t') ||
5418 (!text->use_wchar && buffer.ch[0] != '\t'))
5420 union { GdkWChar *wc; guchar *ch; } next_tab;
5425 if (text->use_wchar)
5426 for (i=0; i<chars; i++)
5428 if (buffer.wc[i] == '\t')
5430 next_tab.wc = buffer.wc + i;
5435 next_tab.ch = memchr (buffer.ch, '\t', chars);
5437 len = MIN (MARK_CURRENT_PROPERTY (&mark)->length - mark.offset, chars);
5439 if (text->use_wchar)
5442 len = MIN (len, next_tab.wc - buffer.wc);
5447 len = MIN (len, next_tab.ch - buffer.ch);
5450 if (mark.index < selection_start_pos)
5451 len = MIN (len, selection_start_pos - mark.index);
5452 else if (mark.index < selection_end_pos)
5453 len = MIN (len, selection_end_pos - mark.index);
5455 font = MARK_CURRENT_FONT (text, &mark);
5456 if (font->type == GDK_FONT_FONT)
5458 gdk_gc_set_font (text->gc, font);
5459 gdk_gc_get_values (text->gc, &gc_values);
5460 if (text->use_wchar)
5461 pixel_width = gdk_text_width_wc (gc_values.font,
5464 pixel_width = gdk_text_width (gc_values.font,
5469 if (text->use_wchar)
5470 pixel_width = gdk_text_width_wc (font, buffer.wc, len);
5472 pixel_width = gdk_text_width (font, buffer.ch, len);
5475 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
5476 pixel_width, LINE_HEIGHT (*lp), TRUE);
5478 if ((mark.index >= selection_start_pos) &&
5479 (mark.index < selection_end_pos))
5481 if (editable->has_selection)
5482 fg_gc = GTK_WIDGET(text)->style->fg_gc[GTK_STATE_SELECTED];
5484 fg_gc = GTK_WIDGET(text)->style->fg_gc[GTK_STATE_ACTIVE];
5488 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &mark));
5492 if (text->use_wchar)
5493 gdk_draw_text_wc (text->text_area, MARK_CURRENT_FONT (text, &mark),
5500 gdk_draw_text (text->text_area, MARK_CURRENT_FONT (text, &mark),
5507 running_offset += pixel_width;
5509 advance_tab_mark_n (text, &tab_mark, len);
5513 gint pixels_remaining;
5519 gdk_window_get_size (text->text_area, &pixels_remaining, NULL);
5520 if (GTK_EDITABLE (text)->editable || !text->word_wrap)
5521 pixels_remaining -= (LINE_WRAP_ROOM + running_offset);
5523 pixels_remaining -= running_offset;
5525 space_width = MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
5527 spaces_avail = pixels_remaining / space_width;
5528 spaces_avail = MIN (spaces_avail, tab_mark.to_next_tab);
5530 draw_bg_rect (text, &mark, running_offset, pixel_start_height,
5531 spaces_avail * space_width, LINE_HEIGHT (*lp), TRUE);
5533 running_offset += tab_mark.to_next_tab *
5534 MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' '];
5536 advance_tab_mark (text, &tab_mark, '\t');
5539 advance_mark_n (&mark, len);
5540 if (text->use_wchar)
5549 draw_line_wrap (GtkSText* text, guint height /* baseline height */)
5556 if (!GTK_EDITABLE (text)->editable && text->word_wrap)
5559 /* SYLPHEED - don't draw ugly word wrapping thing if
5560 * our wrap margin is set */
5561 if (text->wrap_rmargin > 0) {
5565 if (text->line_wrap)
5567 bitmap = text->line_wrap_bitmap;
5568 bitmap_width = line_wrap_width;
5569 bitmap_height = line_wrap_height;
5573 bitmap = text->line_arrow_bitmap;
5574 bitmap_width = line_arrow_width;
5575 bitmap_height = line_arrow_height;
5578 gdk_window_get_size (text->text_area, &width, NULL);
5579 width -= LINE_WRAP_ROOM;
5581 gdk_gc_set_stipple (text->gc,
5584 gdk_gc_set_fill (text->gc, GDK_STIPPLED);
5586 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5588 gdk_gc_set_ts_origin (text->gc,
5590 height - bitmap_height - 1);
5592 gdk_draw_rectangle (text->text_area,
5596 height - bitmap_height - 1 /* one pixel above the baseline. */,
5600 gdk_gc_set_ts_origin (text->gc, 0, 0);
5602 gdk_gc_set_fill (text->gc, GDK_SOLID);
5606 undraw_cursor (GtkSText* text, gint absolute)
5608 GtkEditable *editable = (GtkEditable *)text;
5610 TDEBUG (("in undraw_cursor\n"));
5613 text->cursor_drawn_level = 0;
5615 if ((text->cursor_drawn_level ++ == 0) &&
5616 (editable->selection_start_pos == editable->selection_end_pos) &&
5617 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5620 gint pixel_width, pixel_height;
5623 g_assert(text->cursor_mark.property);
5625 gc = gdk_gc_new(text->text_area);
5627 gdk_gc_copy(gc, text->gc);
5629 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5632 * changed the cursor to a real block (TM)
5634 if (text->cursor_type == STEXT_CURSOR_BLOCK) {
5635 if (text->use_wchar)
5636 pixel_width = gdk_char_width_wc(font, text->cursor_char);
5638 pixel_width = gdk_char_width(font, text->cursor_char);
5640 pixel_height = LINE_HEIGHT(CACHE_DATA(text->current_line));
5642 draw_bg_rect (text, &text->cursor_mark,
5644 text->cursor_pos_y - (pixel_height + 1),
5650 draw_bg_rect (text, &text->cursor_mark,
5651 text->cursor_pos_x - 1,
5652 text->cursor_pos_y - text->cursor_char_offset - font->ascent,
5653 2, font->descent + font->ascent + 1, FALSE);
5657 if (text->cursor_char)
5659 if (font->type == GDK_FONT_FONT)
5660 gdk_gc_set_font (text->gc, font);
5662 gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &text->cursor_mark));
5664 if (text->use_wchar)
5665 gdk_draw_text_wc (text->text_area, font,
5668 text->cursor_pos_y - text->cursor_char_offset,
5673 guchar ch = text->cursor_char;
5674 gdk_draw_text (text->text_area, font,
5677 text->cursor_pos_y - text->cursor_char_offset,
5683 gdk_gc_copy(text->gc, gc);
5689 drawn_cursor_min (GtkSText* text)
5693 g_assert(text->cursor_mark.property);
5695 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5697 return text->cursor_pos_y - text->cursor_char_offset - font->ascent;
5701 drawn_cursor_max (GtkSText* text)
5705 g_assert(text->cursor_mark.property);
5707 font = MARK_CURRENT_FONT(text, &text->cursor_mark);
5709 return text->cursor_pos_y - text->cursor_char_offset;
5713 draw_cursor (GtkSText* text, gint absolute)
5715 GtkEditable *editable = (GtkEditable *)text;
5716 gint pixel_width, pixel_height;
5718 TDEBUG (("in draw_cursor\n"));
5721 text->cursor_drawn_level = 1;
5723 if ((--text->cursor_drawn_level == 0) &&
5724 editable->editable &&
5725 (editable->selection_start_pos == editable->selection_end_pos) &&
5726 GTK_WIDGET_DRAWABLE (text) && text->line_start_cache)
5731 g_assert (text->cursor_mark.property);
5733 gc = gdk_gc_new(text->text_area);
5735 gdk_gc_copy(gc, text->gc);
5736 font = MARK_CURRENT_FONT (text, &text->cursor_mark);
5737 if (text->cursor_type == STEXT_CURSOR_BLOCK) {
5739 * changed the cursor to a real block (TM)
5741 if (text->use_wchar) {
5742 pixel_width = gdk_char_width_wc(font, text->cursor_char);
5745 pixel_width = gdk_char_width(font, text->cursor_char);
5749 pixel_height = LINE_HEIGHT(CACHE_DATA(text->current_line));
5750 gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5751 gdk_gc_set_function(text->gc, GDK_INVERT);
5752 gdk_draw_rectangle(text->text_area, text->gc, TRUE,
5754 text->cursor_pos_y - pixel_height,
5759 gdk_gc_set_line_attributes(text->gc, 2, GDK_LINE_SOLID, GDK_CAP_NOT_LAST, GDK_JOIN_MITER);
5760 gdk_gc_set_foreground(text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]);
5761 gdk_draw_line(text->text_area, text->gc, text->cursor_pos_x,
5762 text->cursor_pos_y + font->descent - text->cursor_char_offset,
5764 text->cursor_pos_y - text->cursor_char_offset - font->ascent );
5767 gdk_gc_copy(text->gc, gc);
5773 create_bg_gc (GtkSText *text)
5777 values.tile = GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL];
5778 values.fill = GDK_TILED;
5780 return gdk_gc_new_with_values (text->text_area, &values,
5781 GDK_GC_FILL | GDK_GC_TILE);
5785 clear_area (GtkSText *text, GdkRectangle *area)
5787 GtkWidget *widget = GTK_WIDGET (text);
5793 gdk_window_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height);
5795 gdk_gc_set_ts_origin (text->bg_gc,
5796 (- (gint)text->first_onscreen_hor_pixel) % width,
5797 (- (gint)text->first_onscreen_ver_pixel) % height);
5799 gdk_draw_rectangle (text->text_area, text->bg_gc, TRUE,
5800 area->x, area->y, area->width, area->height);
5803 gdk_window_clear_area (text->text_area, area->x, area->y, area->width, area->height);
5807 expose_text (GtkSText* text, GdkRectangle *area, gboolean cursor)
5809 GList *cache = text->line_start_cache;
5810 gint pixels = - text->first_cut_pixels;
5811 gint min_y = MAX (0, area->y);
5812 gint max_y = MAX (0, area->y + area->height);
5815 gdk_window_get_size (text->text_area, NULL, &height);
5816 max_y = MIN (max_y, height);
5818 TDEBUG (("in expose x=%d y=%d w=%d h=%d\n", area->x, area->y, area->width, area->height));
5820 clear_area (text, area);
5822 for (; pixels < height; cache = cache->next)
5824 if (pixels < max_y && (pixels + (gint)LINE_HEIGHT(CACHE_DATA(cache))) >= min_y)
5826 draw_line (text, pixels, &CACHE_DATA(cache));
5828 if (CACHE_DATA(cache).wraps)
5829 draw_line_wrap (text, pixels + CACHE_DATA(cache).font_ascent);
5832 if (cursor && GTK_WIDGET_HAS_FOCUS (text))
5834 if (CACHE_DATA(cache).start.index <= text->cursor_mark.index &&
5835 CACHE_DATA(cache).end.index >= text->cursor_mark.index)
5837 /* We undraw and draw the cursor here to get the drawn
5838 * level right ... FIXME - maybe the second parameter
5839 * of draw_cursor should work differently
5841 undraw_cursor (text, FALSE);
5842 draw_cursor (text, FALSE);
5846 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5850 fetch_lines_forward (text, 1);
5859 gtk_stext_update_text (GtkEditable *editable,
5863 GtkSText *text = GTK_STEXT (editable);
5865 GList *cache = text->line_start_cache;
5866 gint pixels = - text->first_cut_pixels;
5872 end_pos = TEXT_LENGTH (text);
5874 if (end_pos < start_pos)
5877 gdk_window_get_size (text->text_area, &width, &height);
5883 TDEBUG (("in expose span start=%d stop=%d\n", start_pos, end_pos));
5885 for (; pixels < height; cache = cache->next)
5887 if (CACHE_DATA(cache).start.index < end_pos)
5889 if (CACHE_DATA(cache).end.index >= start_pos)
5892 area.y = MAX(0,pixels);
5893 area.height = pixels + LINE_HEIGHT(CACHE_DATA(cache)) - area.y;
5899 pixels += LINE_HEIGHT(CACHE_DATA(cache));
5903 fetch_lines_forward (text, 1);
5911 expose_text (text, &area, TRUE);
5915 recompute_geometry (GtkSText* text)
5917 GtkSPropertyMark mark, start_mark;
5924 mark = start_mark = set_vertical_scroll (text);
5926 /* We need a real start of a line when calling fetch_lines().
5927 * not the start of a wrapped line.
5929 while (mark.index > 0 &&
5930 GTK_STEXT_INDEX (text, mark.index - 1) != LINE_DELIM)
5931 decrement_mark (&mark);
5933 gdk_window_get_size (text->text_area, &width, &height);
5935 /* Fetch an entire line, to make sure that we get all the text
5936 * we backed over above, in addition to enough text to fill up
5937 * the space vertically
5940 new_lines = fetch_lines (text,
5946 mark = CACHE_DATA (g_list_last (new_lines)).end;
5947 if (!LAST_INDEX (text, mark))
5949 advance_mark (&mark);
5951 new_lines = g_list_concat (new_lines,
5956 height + text->first_cut_pixels));
5959 /* Now work forward to the actual first onscreen line */
5961 while (CACHE_DATA (new_lines).start.index < start_mark.index)
5962 new_lines = new_lines->next;
5964 text->line_start_cache = new_lines;
5966 find_cursor (text, TRUE);
5969 /**********************************************************************/
5971 /**********************************************************************/
5974 gtk_stext_set_selection (GtkEditable *editable,
5978 GtkSText *text = GTK_STEXT (editable);
5980 guint start1, end1, start2, end2;
5983 end = TEXT_LENGTH (text);
5985 start1 = MIN(start,end);
5986 end1 = MAX(start,end);
5987 start2 = MIN(editable->selection_start_pos, editable->selection_end_pos);
5988 end2 = MAX(editable->selection_start_pos, editable->selection_end_pos);
5990 if (start2 < start1)
5994 tmp = start1; start1 = start2; start2 = tmp;
5995 tmp = end1; end1 = end2; end2 = tmp;
5998 undraw_cursor (text, FALSE);
5999 editable->selection_start_pos = start;
6000 editable->selection_end_pos = end;
6001 draw_cursor (text, FALSE);
6003 /* Expose only what changed */
6005 if (start1 < start2)
6006 gtk_stext_update_text (editable, start1, MIN(end1, start2));
6009 gtk_stext_update_text (editable, MAX(end1, start2), end2);
6010 else if (end2 < end1)
6011 gtk_stext_update_text (editable, end2, end1);
6019 static gint stext_blink_timer_proc(GtkSText *text)
6021 if (text->cursor_state_on) {
6022 text->cursor_state_on = FALSE;
6023 undraw_cursor(text, TRUE);
6024 /* kill this timer... */
6025 gtk_timeout_remove(text->cursor_timer_id);
6026 text->cursor_timer_id = gtk_timeout_add(text->cursor_off_ms, (GtkFunction) stext_blink_timer_proc, (gpointer) text);
6029 text->cursor_state_on = TRUE;
6030 draw_cursor(text, TRUE);
6031 /* kill this timer... */
6032 gtk_timeout_remove(text->cursor_timer_id);
6033 text->cursor_timer_id = gtk_timeout_add(text->cursor_on_ms, (GtkFunction) stext_blink_timer_proc, (gpointer) text);
6038 static gint stext_idle_timer_proc(GtkSText *text)
6040 /* make sure the cursor timer is off */
6041 if (text->cursor_timer_id) {
6042 gtk_timeout_remove(text->cursor_timer_id);
6043 text->cursor_timer_id = 0;
6045 /* assuming it's always on when calling this function ... */
6046 text->cursor_state_on = TRUE;
6047 text->cursor_timer_id = gtk_timeout_add(text->cursor_on_ms, (GtkFunction) stext_blink_timer_proc, (gpointer) text);
6048 /* make sure we kill the timer (could perhaps make this function return FALSE (not documented in
6049 * the current docs). should check the source. */
6050 gtk_idle_remove( text->cursor_idle_time_timer_id );
6051 text->cursor_idle_time_timer_id = 0;
6055 static void gtk_stext_enable_blink (GtkSText *text)
6057 if (text->cursor_timer_on) {
6058 gtk_stext_disable_blink(text);
6059 text->cursor_idle_time_timer_id = gtk_idle_add((GtkFunction) stext_idle_timer_proc, (gpointer) text);
6063 static void gtk_stext_disable_blink (GtkSText *text)
6065 if (text->cursor_timer_on) {
6066 if (text->cursor_idle_time_timer_id) {
6067 gtk_idle_remove( text->cursor_idle_time_timer_id );
6068 text->cursor_idle_time_timer_id = 0;
6070 if (text->cursor_timer_id) {
6071 gtk_timeout_remove( text->cursor_timer_id );
6072 text->cursor_timer_id = 0;
6074 draw_cursor(text, TRUE);
6078 void gtk_stext_set_blink(GtkSText *text, gboolean blinkin_on)
6080 if (text->cursor_timer_on != blinkin_on) {
6081 if (text->cursor_timer_on) {
6082 /* text widget already created? */
6083 if (text->cursor_visible) {
6084 gtk_stext_disable_blink(text);
6086 text->cursor_timer_on = FALSE;
6089 if (text->cursor_visible) {
6090 gtk_stext_enable_blink(text);
6092 text->cursor_timer_on = TRUE;
6098 void gtk_stext_set_wrap_rmargin (GtkSText *text, gint rmargin)
6100 /* not particularly impressive, but it does the job. */
6101 /* TODO: currently only allowed to set this after a
6102 * gtk_stext_new() */
6103 text->wrap_rmargin = rmargin >= 0 ? rmargin : 0;
6106 /**********************************************************************/
6108 /**********************************************************************/
6110 #ifdef DEBUG_GTK_STEXT
6112 gtk_stext_show_cache_line (GtkSText *text, GList *cache,
6113 const char* what, const char* func, gint line)
6115 LineParams *lp = &CACHE_DATA(cache);
6118 if (cache == text->line_start_cache)
6119 g_message ("Line Start Cache: ");
6121 if (cache == text->current_line)
6122 g_message("Current Line: ");
6124 g_message ("%s:%d: cache line %s s=%d,e=%d,lh=%d (",
6132 for (i = lp->start.index; i < (lp->end.index + lp->wraps); i += 1)
6133 g_message ("%c", GTK_STEXT_INDEX (text, i));
6139 gtk_stext_show_cache (GtkSText *text, const char* func, gint line)
6141 GList *l = text->line_start_cache;
6147 /* back up to the absolute beginning of the line cache */
6151 g_message ("*** line cache ***\n");
6152 for (; l; l = l->next)
6153 gtk_stext_show_cache_line (text, l, "all", func, line);
6157 gtk_stext_assert_mark (GtkSText *text,
6158 GtkSPropertyMark *mark,
6159 GtkSPropertyMark *before,
6160 GtkSPropertyMark *after,
6165 GtkSPropertyMark correct_mark = find_mark (text, mark->index);
6167 if (mark->offset != correct_mark.offset ||
6168 mark->property != correct_mark.property)
6169 g_warning ("incorrect %s text property marker in %s:%d, index %d -- bad!", where, msg, line, mark->index);
6173 gtk_stext_assert (GtkSText *text,
6177 GList* cache = text->line_start_cache;
6178 GtkSPropertyMark* before_mark = NULL;
6179 GtkSPropertyMark* after_mark = NULL;
6181 gtk_stext_show_props (text, msg, line);
6183 for (; cache->prev; cache = cache->prev)
6186 g_message ("*** line markers ***\n");
6188 for (; cache; cache = cache->next)
6190 after_mark = &CACHE_DATA(cache).end;
6191 gtk_stext_assert_mark (text, &CACHE_DATA(cache).start, before_mark, after_mark, msg, "start", line);
6192 before_mark = &CACHE_DATA(cache).start;
6195 after_mark = &CACHE_DATA(cache->next).start;
6199 gtk_stext_assert_mark (text, &CACHE_DATA(cache).end, before_mark, after_mark, msg, "end", line);
6200 before_mark = &CACHE_DATA(cache).end;
6205 gtk_stext_show_adj (GtkSText *text,
6211 g_message ("*** adjustment ***\n");
6213 g_message ("%s:%d: %s adjustment l=%.1f u=%.1f v=%.1f si=%.1f pi=%.1f ps=%.1f\n",
6220 adj->step_increment,
6221 adj->page_increment,
6226 gtk_stext_show_props (GtkSText *text,
6230 GList* props = text->text_properties;
6233 g_message ("%s:%d: ", msg, line);
6235 for (; props; props = props->next)
6237 TextProperty *p = (TextProperty*)props->data;
6239 proplen += p->length;
6241 g_message ("[%d,%p,", p->length, p);
6242 if (p->flags & PROPERTY_FONT)
6243 g_message ("%p,", p->font);
6246 if (p->flags & PROPERTY_FOREGROUND)
6247 g_message ("%ld, ", p->fore_color.pixel);
6250 if (p->flags & PROPERTY_BACKGROUND)
6251 g_message ("%ld] ", p->back_color.pixel);
6258 if (proplen - 1 != TEXT_LENGTH(text))
6259 g_warning ("incorrect property list length in %s:%d -- bad!", msg, line);