2 #include "gtktexttagtable.h"
18 static void gtk_text_tag_table_init (GtkTextTagTable *table);
19 static void gtk_text_tag_table_class_init (GtkTextTagTableClass *klass);
20 static void gtk_text_tag_table_finalize (GObject *object);
21 static void gtk_text_tag_table_set_property (GObject *object,
25 static void gtk_text_tag_table_get_property (GObject *object,
30 static GObjectClass *parent_class = NULL;
31 static guint signals[LAST_SIGNAL] = { 0 };
34 gtk_text_tag_table_get_type (void)
36 static GType our_type = 0;
40 static const GTypeInfo our_info =
42 sizeof (GtkTextTagTableClass),
44 (GBaseFinalizeFunc) NULL,
45 (GClassInitFunc) gtk_text_tag_table_class_init,
46 NULL, /* class_finalize */
47 NULL, /* class_data */
48 sizeof (GtkTextTagTable),
50 (GInstanceInitFunc) gtk_text_tag_table_init
53 our_type = g_type_register_static (G_TYPE_OBJECT,
63 gtk_text_tag_table_class_init (GtkTextTagTableClass *klass)
65 GObjectClass *object_class = G_OBJECT_CLASS (klass);
67 parent_class = g_type_class_peek_parent (klass);
69 object_class->set_property = gtk_text_tag_table_set_property;
70 object_class->get_property = gtk_text_tag_table_get_property;
72 object_class->finalize = gtk_text_tag_table_finalize;
74 signals[TAG_CHANGED] =
75 g_signal_newc ("tag_changed",
76 G_OBJECT_CLASS_TYPE (object_class),
78 G_STRUCT_OFFSET (GtkTextTagTableClass, tag_changed),
80 gtk_marshal_VOID__OBJECT_BOOLEAN,
87 g_signal_newc ("tag_added",
88 GTK_CLASS_TYPE (object_class),
90 G_STRUCT_OFFSET (GtkTextTagTableClass, tag_added),
92 gtk_marshal_VOID__OBJECT,
97 signals[TAG_REMOVED] =
98 g_signal_newc ("tag_removed",
99 GTK_CLASS_TYPE (object_class),
101 G_STRUCT_OFFSET (GtkTextTagTableClass, tag_removed),
103 gtk_marshal_VOID__OBJECT,
110 gtk_text_tag_table_init (GtkTextTagTable *table)
112 table->hash = g_hash_table_new (g_str_hash, g_str_equal);
116 * gtk_text_tag_table_new:
118 * Creates a new #GtkTextTagTable. The table contains no tags by
121 * Return value: a new #GtkTextTagTable
124 gtk_text_tag_table_new (void)
126 GtkTextTagTable *table;
128 table = GTK_TEXT_TAG_TABLE (g_object_new (gtk_text_tag_table_get_type (), NULL));
134 foreach_unref (GtkTextTag *tag, gpointer data)
136 /* We don't want to emit the remove signal here; so we just unparent
141 g_object_unref (G_OBJECT (tag));
145 gtk_text_tag_table_finalize (GObject *object)
147 GtkTextTagTable *table;
149 table = GTK_TEXT_TAG_TABLE (object);
151 gtk_text_tag_table_foreach (table, foreach_unref, NULL);
153 g_hash_table_destroy (table->hash);
154 g_slist_free (table->anonymous);
156 (* G_OBJECT_CLASS (parent_class)->finalize) (object);
159 gtk_text_tag_table_set_property (GObject *object,
164 GtkTextTagTable *table;
166 table = GTK_TEXT_TAG_TABLE (object);
172 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
179 gtk_text_tag_table_get_property (GObject *object,
184 GtkTextTagTable *table;
186 table = GTK_TEXT_TAG_TABLE (object);
192 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
198 * gtk_text_tag_table_add:
199 * @table: a #GtkTextTagTable
200 * @tag: a #GtkTextTag
202 * Add a tag to the table. The tag is assigned the highest priority
207 gtk_text_tag_table_add (GtkTextTagTable *table,
212 g_return_if_fail (GTK_IS_TEXT_TAG_TABLE (table));
213 g_return_if_fail (GTK_IS_TEXT_TAG (tag));
214 g_return_if_fail (tag->name == NULL ||
215 g_hash_table_lookup (table->hash, tag->name) == NULL);
216 g_return_if_fail (tag->table == NULL);
218 g_object_ref (G_OBJECT (tag));
221 g_hash_table_insert (table->hash, tag->name, tag);
224 table->anonymous = g_slist_prepend (table->anonymous, tag);
225 table->anon_count += 1;
230 /* We get the highest tag priority, as the most-recently-added
231 tag. Note that we do NOT use gtk_text_tag_set_priority,
232 as it assumes the tag is already in the table. */
233 size = gtk_text_tag_table_size (table);
235 tag->priority = size - 1;
237 g_signal_emit (G_OBJECT (table), signals[TAG_ADDED], 0, tag);
241 * gtk_text_tag_table_lookup:
242 * @table: a #GtkTextTagTable
243 * @name: name of a tag
245 * Look up a named tag.
247 * Return value: The tag, or %NULL if none by that name is in the table.
250 gtk_text_tag_table_lookup (GtkTextTagTable *table,
253 g_return_val_if_fail (GTK_IS_TEXT_TAG_TABLE (table), NULL);
254 g_return_val_if_fail (name != NULL, NULL);
256 return g_hash_table_lookup (table->hash, name);
260 * gtk_text_tag_table_remove:
261 * @table: a #GtkTextTagTable
262 * @tag: a #GtkTextTag
264 * Remove a tag from the table. This will remove the table's
265 * reference to the tag, so be careful - the tag will end
266 * up destroyed if you don't have a reference to it.
269 gtk_text_tag_table_remove (GtkTextTagTable *table,
272 g_return_if_fail (GTK_IS_TEXT_TAG_TABLE (table));
273 g_return_if_fail (GTK_IS_TEXT_TAG (tag));
274 g_return_if_fail (tag->table == table);
276 /* Set ourselves to the highest priority; this means
277 when we're removed, there won't be any gaps in the
278 priorities of the tags in the table. */
279 gtk_text_tag_set_priority (tag, gtk_text_tag_table_size (table) - 1);
284 g_hash_table_remove (table->hash, tag->name);
287 table->anonymous = g_slist_remove (table->anonymous, tag);
288 table->anon_count -= 1;
291 g_signal_emit (G_OBJECT (table), signals[TAG_REMOVED], 0, tag);
293 g_object_unref (G_OBJECT (tag));
298 GtkTextTagTableForeach func;
303 hash_foreach (gpointer key, gpointer value, gpointer data)
305 struct ForeachData *fd = data;
307 g_return_if_fail (GTK_IS_TEXT_TAG (value));
309 (* fd->func) (value, fd->data);
313 list_foreach (gpointer data, gpointer user_data)
315 struct ForeachData *fd = user_data;
317 g_return_if_fail (GTK_IS_TEXT_TAG (data));
319 (* fd->func) (data, fd->data);
323 * gtk_text_tag_table_foreach:
324 * @table: a #GtkTextTagTable
325 * @func: a function to call on each tag
328 * Calls @func on each tag in @table, with user data @data.
332 gtk_text_tag_table_foreach (GtkTextTagTable *table,
333 GtkTextTagTableForeach func,
336 struct ForeachData d;
338 g_return_if_fail (GTK_IS_TEXT_TAG_TABLE (table));
339 g_return_if_fail (func != NULL);
344 g_hash_table_foreach (table->hash, hash_foreach, &d);
345 g_slist_foreach (table->anonymous, list_foreach, &d);
349 * gtk_text_tag_table_size:
350 * @table: a #GtkTextTagTable
352 * Returns the size of the table (number of tags)
354 * Return value: number of tags in @table
357 gtk_text_tag_table_size (GtkTextTagTable *table)
359 g_return_val_if_fail (GTK_IS_TEXT_TAG_TABLE (table), 0);
361 return g_hash_table_size (table->hash) + table->anon_count;