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 #if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
28 #error "Only <gtk/gtk.h> can be included directly."
31 #ifndef __GTK_TEXT_ITER_H__
32 #define __GTK_TEXT_ITER_H__
34 #include <gtk/gtktexttag.h>
35 #include <gtk/gtktextchild.h>
40 GTK_TEXT_SEARCH_VISIBLE_ONLY = 1 << 0,
41 GTK_TEXT_SEARCH_TEXT_ONLY = 1 << 1
42 /* Possible future plans: SEARCH_CASE_INSENSITIVE, SEARCH_REGEXP */
46 * Iter: represents a location in the text. Becomes invalid if the
47 * characters/pixmaps/widgets (indexable objects) in the text buffer
51 typedef struct _GtkTextBuffer GtkTextBuffer;
53 #define GTK_TYPE_TEXT_ITER (gtk_text_iter_get_type ())
56 /* GtkTextIter is an opaque datatype; ignore all these fields.
57 * Initialize the iter with gtk_text_buffer_get_iter_*
79 /* This is primarily intended for language bindings that want to avoid
80 a "buffer" argument to text insertions, deletions, etc. */
81 GtkTextBuffer *gtk_text_iter_get_buffer (const GtkTextIter *iter);
87 GtkTextIter *gtk_text_iter_copy (const GtkTextIter *iter);
88 void gtk_text_iter_free (GtkTextIter *iter);
90 GType gtk_text_iter_get_type (void) G_GNUC_CONST;
93 * Convert to different kinds of index
96 gint gtk_text_iter_get_offset (const GtkTextIter *iter);
97 gint gtk_text_iter_get_line (const GtkTextIter *iter);
98 gint gtk_text_iter_get_line_offset (const GtkTextIter *iter);
99 gint gtk_text_iter_get_line_index (const GtkTextIter *iter);
101 gint gtk_text_iter_get_visible_line_offset (const GtkTextIter *iter);
102 gint gtk_text_iter_get_visible_line_index (const GtkTextIter *iter);
106 * "Dereference" operators
108 gunichar gtk_text_iter_get_char (const GtkTextIter *iter);
110 /* includes the 0xFFFC char for pixmaps/widgets, so char offsets
111 * into the returned string map properly into buffer char offsets
113 gchar *gtk_text_iter_get_slice (const GtkTextIter *start,
114 const GtkTextIter *end);
116 /* includes only text, no 0xFFFC */
117 gchar *gtk_text_iter_get_text (const GtkTextIter *start,
118 const GtkTextIter *end);
119 /* exclude invisible chars */
120 gchar *gtk_text_iter_get_visible_slice (const GtkTextIter *start,
121 const GtkTextIter *end);
122 gchar *gtk_text_iter_get_visible_text (const GtkTextIter *start,
123 const GtkTextIter *end);
125 GdkPixbuf* gtk_text_iter_get_pixbuf (const GtkTextIter *iter);
126 GSList * gtk_text_iter_get_marks (const GtkTextIter *iter);
128 GtkTextChildAnchor* gtk_text_iter_get_child_anchor (const GtkTextIter *iter);
130 /* Return list of tags toggled at this point (toggled_on determines
131 * whether the list is of on-toggles or off-toggles)
133 GSList *gtk_text_iter_get_toggled_tags (const GtkTextIter *iter,
134 gboolean toggled_on);
136 gboolean gtk_text_iter_begins_tag (const GtkTextIter *iter,
139 gboolean gtk_text_iter_ends_tag (const GtkTextIter *iter,
142 gboolean gtk_text_iter_toggles_tag (const GtkTextIter *iter,
145 gboolean gtk_text_iter_has_tag (const GtkTextIter *iter,
147 GSList *gtk_text_iter_get_tags (const GtkTextIter *iter);
149 gboolean gtk_text_iter_editable (const GtkTextIter *iter,
150 gboolean default_setting);
151 gboolean gtk_text_iter_can_insert (const GtkTextIter *iter,
152 gboolean default_editability);
154 gboolean gtk_text_iter_starts_word (const GtkTextIter *iter);
155 gboolean gtk_text_iter_ends_word (const GtkTextIter *iter);
156 gboolean gtk_text_iter_inside_word (const GtkTextIter *iter);
157 gboolean gtk_text_iter_starts_sentence (const GtkTextIter *iter);
158 gboolean gtk_text_iter_ends_sentence (const GtkTextIter *iter);
159 gboolean gtk_text_iter_inside_sentence (const GtkTextIter *iter);
160 gboolean gtk_text_iter_starts_line (const GtkTextIter *iter);
161 gboolean gtk_text_iter_ends_line (const GtkTextIter *iter);
162 gboolean gtk_text_iter_is_cursor_position (const GtkTextIter *iter);
164 gint gtk_text_iter_get_chars_in_line (const GtkTextIter *iter);
165 gint gtk_text_iter_get_bytes_in_line (const GtkTextIter *iter);
167 gboolean gtk_text_iter_get_attributes (const GtkTextIter *iter,
168 GtkTextAttributes *values);
169 PangoLanguage* gtk_text_iter_get_language (const GtkTextIter *iter);
170 gboolean gtk_text_iter_is_end (const GtkTextIter *iter);
171 gboolean gtk_text_iter_is_start (const GtkTextIter *iter);
174 * Moving around the buffer
177 gboolean gtk_text_iter_forward_char (GtkTextIter *iter);
178 gboolean gtk_text_iter_backward_char (GtkTextIter *iter);
179 gboolean gtk_text_iter_forward_chars (GtkTextIter *iter,
181 gboolean gtk_text_iter_backward_chars (GtkTextIter *iter,
183 gboolean gtk_text_iter_forward_line (GtkTextIter *iter);
184 gboolean gtk_text_iter_backward_line (GtkTextIter *iter);
185 gboolean gtk_text_iter_forward_lines (GtkTextIter *iter,
187 gboolean gtk_text_iter_backward_lines (GtkTextIter *iter,
189 gboolean gtk_text_iter_forward_word_end (GtkTextIter *iter);
190 gboolean gtk_text_iter_backward_word_start (GtkTextIter *iter);
191 gboolean gtk_text_iter_forward_word_ends (GtkTextIter *iter,
193 gboolean gtk_text_iter_backward_word_starts (GtkTextIter *iter,
196 gboolean gtk_text_iter_forward_visible_line (GtkTextIter *iter);
197 gboolean gtk_text_iter_backward_visible_line (GtkTextIter *iter);
198 gboolean gtk_text_iter_forward_visible_lines (GtkTextIter *iter,
200 gboolean gtk_text_iter_backward_visible_lines (GtkTextIter *iter,
203 gboolean gtk_text_iter_forward_visible_word_end (GtkTextIter *iter);
204 gboolean gtk_text_iter_backward_visible_word_start (GtkTextIter *iter);
205 gboolean gtk_text_iter_forward_visible_word_ends (GtkTextIter *iter,
207 gboolean gtk_text_iter_backward_visible_word_starts (GtkTextIter *iter,
210 gboolean gtk_text_iter_forward_sentence_end (GtkTextIter *iter);
211 gboolean gtk_text_iter_backward_sentence_start (GtkTextIter *iter);
212 gboolean gtk_text_iter_forward_sentence_ends (GtkTextIter *iter,
214 gboolean gtk_text_iter_backward_sentence_starts (GtkTextIter *iter,
216 /* cursor positions are almost equivalent to chars, but not quite;
217 * in some languages, you can't put the cursor between certain
218 * chars. Also, you can't put the cursor between \r\n at the end
221 gboolean gtk_text_iter_forward_cursor_position (GtkTextIter *iter);
222 gboolean gtk_text_iter_backward_cursor_position (GtkTextIter *iter);
223 gboolean gtk_text_iter_forward_cursor_positions (GtkTextIter *iter,
225 gboolean gtk_text_iter_backward_cursor_positions (GtkTextIter *iter,
228 gboolean gtk_text_iter_forward_visible_cursor_position (GtkTextIter *iter);
229 gboolean gtk_text_iter_backward_visible_cursor_position (GtkTextIter *iter);
230 gboolean gtk_text_iter_forward_visible_cursor_positions (GtkTextIter *iter,
232 gboolean gtk_text_iter_backward_visible_cursor_positions (GtkTextIter *iter,
236 void gtk_text_iter_set_offset (GtkTextIter *iter,
238 void gtk_text_iter_set_line (GtkTextIter *iter,
240 void gtk_text_iter_set_line_offset (GtkTextIter *iter,
242 void gtk_text_iter_set_line_index (GtkTextIter *iter,
244 void gtk_text_iter_forward_to_end (GtkTextIter *iter);
245 gboolean gtk_text_iter_forward_to_line_end (GtkTextIter *iter);
247 void gtk_text_iter_set_visible_line_offset (GtkTextIter *iter,
249 void gtk_text_iter_set_visible_line_index (GtkTextIter *iter,
252 /* returns TRUE if a toggle was found; NULL for the tag pointer
253 * means "any tag toggle", otherwise the next toggle of the
254 * specified tag is located.
256 gboolean gtk_text_iter_forward_to_tag_toggle (GtkTextIter *iter,
259 gboolean gtk_text_iter_backward_to_tag_toggle (GtkTextIter *iter,
262 typedef gboolean (* GtkTextCharPredicate) (gunichar ch, gpointer user_data);
264 gboolean gtk_text_iter_forward_find_char (GtkTextIter *iter,
265 GtkTextCharPredicate pred,
267 const GtkTextIter *limit);
268 gboolean gtk_text_iter_backward_find_char (GtkTextIter *iter,
269 GtkTextCharPredicate pred,
271 const GtkTextIter *limit);
273 gboolean gtk_text_iter_forward_search (const GtkTextIter *iter,
275 GtkTextSearchFlags flags,
276 GtkTextIter *match_start,
277 GtkTextIter *match_end,
278 const GtkTextIter *limit);
280 gboolean gtk_text_iter_backward_search (const GtkTextIter *iter,
282 GtkTextSearchFlags flags,
283 GtkTextIter *match_start,
284 GtkTextIter *match_end,
285 const GtkTextIter *limit);
291 gboolean gtk_text_iter_equal (const GtkTextIter *lhs,
292 const GtkTextIter *rhs);
293 gint gtk_text_iter_compare (const GtkTextIter *lhs,
294 const GtkTextIter *rhs);
295 gboolean gtk_text_iter_in_range (const GtkTextIter *iter,
296 const GtkTextIter *start,
297 const GtkTextIter *end);
299 /* Put these two in ascending order */
300 void gtk_text_iter_order (GtkTextIter *first,
301 GtkTextIter *second);