1 /* GTK - The GIMP Toolkit
2 * gtktextiter.h Copyright (C) 2000 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
27 #ifndef __GTK_TEXT_ITER_H__
28 #define __GTK_TEXT_ITER_H__
30 #include <gtk/gtktexttag.h>
31 #include <gtk/gtktextchild.h>
36 GTK_TEXT_SEARCH_VISIBLE_ONLY = 1 << 0,
37 GTK_TEXT_SEARCH_TEXT_ONLY = 1 << 1
38 /* Possible future plans: SEARCH_CASE_INSENSITIVE, SEARCH_REGEXP */
42 * Iter: represents a location in the text. Becomes invalid if the
43 * characters/pixmaps/widgets (indexable objects) in the text buffer
47 typedef struct _GtkTextBuffer GtkTextBuffer;
49 #define GTK_TYPE_TEXT_ITER (gtk_text_iter_get_type ())
52 /* GtkTextIter is an opaque datatype; ignore all these fields.
53 * Initialize the iter with gtk_text_buffer_get_iter_*
75 /* This is primarily intended for language bindings that want to avoid
76 a "buffer" argument to text insertions, deletions, etc. */
77 GtkTextBuffer *gtk_text_iter_get_buffer (const GtkTextIter *iter);
83 GtkTextIter *gtk_text_iter_copy (const GtkTextIter *iter);
84 void gtk_text_iter_free (GtkTextIter *iter);
86 GType gtk_text_iter_get_type (void) G_GNUC_CONST;
89 * Convert to different kinds of index
92 gint gtk_text_iter_get_offset (const GtkTextIter *iter);
93 gint gtk_text_iter_get_line (const GtkTextIter *iter);
94 gint gtk_text_iter_get_line_offset (const GtkTextIter *iter);
95 gint gtk_text_iter_get_line_index (const GtkTextIter *iter);
97 gint gtk_text_iter_get_visible_line_offset (const GtkTextIter *iter);
98 gint gtk_text_iter_get_visible_line_index (const GtkTextIter *iter);
102 * "Dereference" operators
104 gunichar gtk_text_iter_get_char (const GtkTextIter *iter);
106 /* includes the 0xFFFC char for pixmaps/widgets, so char offsets
107 * into the returned string map properly into buffer char offsets
109 gchar *gtk_text_iter_get_slice (const GtkTextIter *start,
110 const GtkTextIter *end);
112 /* includes only text, no 0xFFFC */
113 gchar *gtk_text_iter_get_text (const GtkTextIter *start,
114 const GtkTextIter *end);
115 /* exclude invisible chars */
116 gchar *gtk_text_iter_get_visible_slice (const GtkTextIter *start,
117 const GtkTextIter *end);
118 gchar *gtk_text_iter_get_visible_text (const GtkTextIter *start,
119 const GtkTextIter *end);
121 GdkPixbuf* gtk_text_iter_get_pixbuf (const GtkTextIter *iter);
122 GSList * gtk_text_iter_get_marks (const GtkTextIter *iter);
124 GtkTextChildAnchor* gtk_text_iter_get_child_anchor (const GtkTextIter *iter);
126 /* Return list of tags toggled at this point (toggled_on determines
127 * whether the list is of on-toggles or off-toggles)
129 GSList *gtk_text_iter_get_toggled_tags (const GtkTextIter *iter,
130 gboolean toggled_on);
132 gboolean gtk_text_iter_begins_tag (const GtkTextIter *iter,
135 gboolean gtk_text_iter_ends_tag (const GtkTextIter *iter,
138 gboolean gtk_text_iter_toggles_tag (const GtkTextIter *iter,
141 gboolean gtk_text_iter_has_tag (const GtkTextIter *iter,
143 GSList *gtk_text_iter_get_tags (const GtkTextIter *iter);
145 gboolean gtk_text_iter_editable (const GtkTextIter *iter,
146 gboolean default_setting);
147 gboolean gtk_text_iter_can_insert (const GtkTextIter *iter,
148 gboolean default_editability);
150 gboolean gtk_text_iter_starts_word (const GtkTextIter *iter);
151 gboolean gtk_text_iter_ends_word (const GtkTextIter *iter);
152 gboolean gtk_text_iter_inside_word (const GtkTextIter *iter);
153 gboolean gtk_text_iter_starts_sentence (const GtkTextIter *iter);
154 gboolean gtk_text_iter_ends_sentence (const GtkTextIter *iter);
155 gboolean gtk_text_iter_inside_sentence (const GtkTextIter *iter);
156 gboolean gtk_text_iter_starts_line (const GtkTextIter *iter);
157 gboolean gtk_text_iter_ends_line (const GtkTextIter *iter);
158 gboolean gtk_text_iter_is_cursor_position (const GtkTextIter *iter);
160 gint gtk_text_iter_get_chars_in_line (const GtkTextIter *iter);
161 gint gtk_text_iter_get_bytes_in_line (const GtkTextIter *iter);
163 gboolean gtk_text_iter_get_attributes (const GtkTextIter *iter,
164 GtkTextAttributes *values);
165 PangoLanguage* gtk_text_iter_get_language (const GtkTextIter *iter);
166 gboolean gtk_text_iter_is_end (const GtkTextIter *iter);
167 gboolean gtk_text_iter_is_start (const GtkTextIter *iter);
170 * Moving around the buffer
173 gboolean gtk_text_iter_forward_char (GtkTextIter *iter);
174 gboolean gtk_text_iter_backward_char (GtkTextIter *iter);
175 gboolean gtk_text_iter_forward_chars (GtkTextIter *iter,
177 gboolean gtk_text_iter_backward_chars (GtkTextIter *iter,
179 gboolean gtk_text_iter_forward_line (GtkTextIter *iter);
180 gboolean gtk_text_iter_backward_line (GtkTextIter *iter);
181 gboolean gtk_text_iter_forward_lines (GtkTextIter *iter,
183 gboolean gtk_text_iter_backward_lines (GtkTextIter *iter,
185 gboolean gtk_text_iter_forward_word_end (GtkTextIter *iter);
186 gboolean gtk_text_iter_backward_word_start (GtkTextIter *iter);
187 gboolean gtk_text_iter_forward_word_ends (GtkTextIter *iter,
189 gboolean gtk_text_iter_backward_word_starts (GtkTextIter *iter,
192 gboolean gtk_text_iter_forward_visible_line (GtkTextIter *iter);
193 gboolean gtk_text_iter_backward_visible_line (GtkTextIter *iter);
194 gboolean gtk_text_iter_forward_visible_lines (GtkTextIter *iter,
196 gboolean gtk_text_iter_backward_visible_lines (GtkTextIter *iter,
199 gboolean gtk_text_iter_forward_visible_word_end (GtkTextIter *iter);
200 gboolean gtk_text_iter_backward_visible_word_start (GtkTextIter *iter);
201 gboolean gtk_text_iter_forward_visible_word_ends (GtkTextIter *iter,
203 gboolean gtk_text_iter_backward_visible_word_starts (GtkTextIter *iter,
206 gboolean gtk_text_iter_forward_sentence_end (GtkTextIter *iter);
207 gboolean gtk_text_iter_backward_sentence_start (GtkTextIter *iter);
208 gboolean gtk_text_iter_forward_sentence_ends (GtkTextIter *iter,
210 gboolean gtk_text_iter_backward_sentence_starts (GtkTextIter *iter,
212 /* cursor positions are almost equivalent to chars, but not quite;
213 * in some languages, you can't put the cursor between certain
214 * chars. Also, you can't put the cursor between \r\n at the end
217 gboolean gtk_text_iter_forward_cursor_position (GtkTextIter *iter);
218 gboolean gtk_text_iter_backward_cursor_position (GtkTextIter *iter);
219 gboolean gtk_text_iter_forward_cursor_positions (GtkTextIter *iter,
221 gboolean gtk_text_iter_backward_cursor_positions (GtkTextIter *iter,
224 gboolean gtk_text_iter_forward_visible_cursor_position (GtkTextIter *iter);
225 gboolean gtk_text_iter_backward_visible_cursor_position (GtkTextIter *iter);
226 gboolean gtk_text_iter_forward_visible_cursor_positions (GtkTextIter *iter,
228 gboolean gtk_text_iter_backward_visible_cursor_positions (GtkTextIter *iter,
232 void gtk_text_iter_set_offset (GtkTextIter *iter,
234 void gtk_text_iter_set_line (GtkTextIter *iter,
236 void gtk_text_iter_set_line_offset (GtkTextIter *iter,
238 void gtk_text_iter_set_line_index (GtkTextIter *iter,
240 void gtk_text_iter_forward_to_end (GtkTextIter *iter);
241 gboolean gtk_text_iter_forward_to_line_end (GtkTextIter *iter);
243 void gtk_text_iter_set_visible_line_offset (GtkTextIter *iter,
245 void gtk_text_iter_set_visible_line_index (GtkTextIter *iter,
248 /* returns TRUE if a toggle was found; NULL for the tag pointer
249 * means "any tag toggle", otherwise the next toggle of the
250 * specified tag is located.
252 gboolean gtk_text_iter_forward_to_tag_toggle (GtkTextIter *iter,
255 gboolean gtk_text_iter_backward_to_tag_toggle (GtkTextIter *iter,
258 typedef gboolean (* GtkTextCharPredicate) (gunichar ch, gpointer user_data);
260 gboolean gtk_text_iter_forward_find_char (GtkTextIter *iter,
261 GtkTextCharPredicate pred,
263 const GtkTextIter *limit);
264 gboolean gtk_text_iter_backward_find_char (GtkTextIter *iter,
265 GtkTextCharPredicate pred,
267 const GtkTextIter *limit);
269 gboolean gtk_text_iter_forward_search (const GtkTextIter *iter,
271 GtkTextSearchFlags flags,
272 GtkTextIter *match_start,
273 GtkTextIter *match_end,
274 const GtkTextIter *limit);
276 gboolean gtk_text_iter_backward_search (const GtkTextIter *iter,
278 GtkTextSearchFlags flags,
279 GtkTextIter *match_start,
280 GtkTextIter *match_end,
281 const GtkTextIter *limit);
287 gboolean gtk_text_iter_equal (const GtkTextIter *lhs,
288 const GtkTextIter *rhs);
289 gint gtk_text_iter_compare (const GtkTextIter *lhs,
290 const GtkTextIter *rhs);
291 gboolean gtk_text_iter_in_range (const GtkTextIter *iter,
292 const GtkTextIter *start,
293 const GtkTextIter *end);
295 /* Put these two in ascending order */
296 void gtk_text_iter_order (GtkTextIter *first,
297 GtkTextIter *second);