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>
35 #endif /* __cplusplus */
38 * Iter: represents a location in the text. Becomes invalid if the
39 * characters/pixmaps/widgets (indexable objects) in the text buffer
43 typedef struct _GtkTextBuffer GtkTextBuffer;
61 /* This is primarily intended for language bindings that want to avoid
62 a "buffer" argument to text insertions, deletions, etc. */
63 GtkTextBuffer *gtk_text_iter_get_buffer (const GtkTextIter *iter);
69 GtkTextIter *gtk_text_iter_copy (const GtkTextIter *iter);
70 void gtk_text_iter_free (GtkTextIter *iter);
73 * Convert to different kinds of index
76 gint gtk_text_iter_get_offset (const GtkTextIter *iter);
77 gint gtk_text_iter_get_line (const GtkTextIter *iter);
78 gint gtk_text_iter_get_line_offset (const GtkTextIter *iter);
79 gint gtk_text_iter_get_line_index (const GtkTextIter *iter);
81 gint gtk_text_iter_get_visible_line_offset (const GtkTextIter *iter);
82 gint gtk_text_iter_get_visible_line_index (const GtkTextIter *iter);
86 * "Dereference" operators
88 gunichar gtk_text_iter_get_char (const GtkTextIter *iter);
90 /* includes the 0xFFFC char for pixmaps/widgets, so char offsets
91 * into the returned string map properly into buffer char offsets
93 gchar *gtk_text_iter_get_slice (const GtkTextIter *start,
94 const GtkTextIter *end);
96 /* includes only text, no 0xFFFC */
97 gchar *gtk_text_iter_get_text (const GtkTextIter *start,
98 const GtkTextIter *end);
99 /* exclude invisible chars */
100 gchar *gtk_text_iter_get_visible_slice (const GtkTextIter *start,
101 const GtkTextIter *end);
102 gchar *gtk_text_iter_get_visible_text (const GtkTextIter *start,
103 const GtkTextIter *end);
105 GdkPixbuf* gtk_text_iter_get_pixbuf (const GtkTextIter *iter);
106 GSList * gtk_text_iter_get_marks (const GtkTextIter *iter);
108 GtkTextChildAnchor* gtk_text_iter_get_child_anchor (const GtkTextIter *iter);
110 /* Return list of tags toggled at this point (toggled_on determines
111 * whether the list is of on-toggles or off-toggles)
113 GSList *gtk_text_iter_get_toggled_tags (const GtkTextIter *iter,
114 gboolean toggled_on);
116 gboolean gtk_text_iter_begins_tag (const GtkTextIter *iter,
119 gboolean gtk_text_iter_ends_tag (const GtkTextIter *iter,
122 gboolean gtk_text_iter_toggles_tag (const GtkTextIter *iter,
125 gboolean gtk_text_iter_has_tag (const GtkTextIter *iter,
127 GSList *gtk_text_iter_get_tags (const GtkTextIter *iter);
129 gboolean gtk_text_iter_editable (const GtkTextIter *iter,
130 gboolean default_setting);
132 gboolean gtk_text_iter_starts_word (const GtkTextIter *iter);
133 gboolean gtk_text_iter_ends_word (const GtkTextIter *iter);
134 gboolean gtk_text_iter_inside_word (const GtkTextIter *iter);
135 gboolean gtk_text_iter_starts_sentence (const GtkTextIter *iter);
136 gboolean gtk_text_iter_ends_sentence (const GtkTextIter *iter);
137 gboolean gtk_text_iter_inside_sentence (const GtkTextIter *iter);
138 gboolean gtk_text_iter_starts_line (const GtkTextIter *iter);
139 gboolean gtk_text_iter_ends_line (const GtkTextIter *iter);
140 gboolean gtk_text_iter_is_cursor_position (const GtkTextIter *iter);
142 gint gtk_text_iter_get_chars_in_line (const GtkTextIter *iter);
143 gint gtk_text_iter_get_bytes_in_line (const GtkTextIter *iter);
145 gboolean gtk_text_iter_get_attributes (const GtkTextIter *iter,
146 GtkTextAttributes *values);
147 PangoLanguage* gtk_text_iter_get_language (const GtkTextIter *iter);
148 gboolean gtk_text_iter_is_end (const GtkTextIter *iter);
149 gboolean gtk_text_iter_is_start (const GtkTextIter *iter);
152 * Moving around the buffer
155 gboolean gtk_text_iter_forward_char (GtkTextIter *iter);
156 gboolean gtk_text_iter_backward_char (GtkTextIter *iter);
157 gboolean gtk_text_iter_forward_chars (GtkTextIter *iter,
159 gboolean gtk_text_iter_backward_chars (GtkTextIter *iter,
161 gboolean gtk_text_iter_forward_line (GtkTextIter *iter);
162 gboolean gtk_text_iter_backward_line (GtkTextIter *iter);
163 gboolean gtk_text_iter_forward_lines (GtkTextIter *iter,
165 gboolean gtk_text_iter_backward_lines (GtkTextIter *iter,
167 gboolean gtk_text_iter_forward_word_end (GtkTextIter *iter);
168 gboolean gtk_text_iter_backward_word_start (GtkTextIter *iter);
169 gboolean gtk_text_iter_forward_word_ends (GtkTextIter *iter,
171 gboolean gtk_text_iter_backward_word_starts (GtkTextIter *iter,
174 gboolean gtk_text_iter_forward_sentence_end (GtkTextIter *iter);
175 gboolean gtk_text_iter_backward_sentence_start (GtkTextIter *iter);
176 gboolean gtk_text_iter_forward_sentence_ends (GtkTextIter *iter,
178 gboolean gtk_text_iter_backward_sentence_starts (GtkTextIter *iter,
180 /* cursor positions are almost equivalent to chars, but not quite;
181 * in some languages, you can't put the cursor between certain
182 * chars. Also, you can't put the cursor between \r\n at the end
185 gboolean gtk_text_iter_forward_cursor_position (GtkTextIter *iter);
186 gboolean gtk_text_iter_backward_cursor_position (GtkTextIter *iter);
187 gboolean gtk_text_iter_forward_cursor_positions (GtkTextIter *iter,
189 gboolean gtk_text_iter_backward_cursor_positions (GtkTextIter *iter,
193 void gtk_text_iter_set_offset (GtkTextIter *iter,
195 void gtk_text_iter_set_line (GtkTextIter *iter,
197 void gtk_text_iter_set_line_offset (GtkTextIter *iter,
199 void gtk_text_iter_set_line_index (GtkTextIter *iter,
201 void gtk_text_iter_forward_to_end (GtkTextIter *iter);
202 gboolean gtk_text_iter_forward_to_line_end (GtkTextIter *iter);
204 void gtk_text_iter_set_visible_line_offset (GtkTextIter *iter,
206 void gtk_text_iter_set_visible_line_index (GtkTextIter *iter,
209 /* returns TRUE if a toggle was found; NULL for the tag pointer
210 * means "any tag toggle", otherwise the next toggle of the
211 * specified tag is located.
213 gboolean gtk_text_iter_forward_to_tag_toggle (GtkTextIter *iter,
216 gboolean gtk_text_iter_backward_to_tag_toggle (GtkTextIter *iter,
219 typedef gboolean (* GtkTextCharPredicate) (gunichar ch, gpointer user_data);
221 gboolean gtk_text_iter_forward_find_char (GtkTextIter *iter,
222 GtkTextCharPredicate pred,
224 const GtkTextIter *limit);
225 gboolean gtk_text_iter_backward_find_char (GtkTextIter *iter,
226 GtkTextCharPredicate pred,
228 const GtkTextIter *limit);
230 gboolean gtk_text_iter_forward_search (const GtkTextIter *iter,
232 gboolean visible_only,
234 GtkTextIter *match_start,
235 GtkTextIter *match_end,
236 const GtkTextIter *limit);
238 gboolean gtk_text_iter_backward_search (const GtkTextIter *iter,
240 gboolean visible_only,
242 GtkTextIter *match_start,
243 GtkTextIter *match_end,
244 const GtkTextIter *limit);
250 gboolean gtk_text_iter_equal (const GtkTextIter *lhs,
251 const GtkTextIter *rhs);
252 gint gtk_text_iter_compare (const GtkTextIter *lhs,
253 const GtkTextIter *rhs);
254 gboolean gtk_text_iter_in_range (const GtkTextIter *iter,
255 const GtkTextIter *start,
256 const GtkTextIter *end);
258 /* Put these two in ascending order */
259 void gtk_text_iter_order (GtkTextIter *first,
260 GtkTextIter *second);
264 #endif /* __cplusplus */