Commit 5a561a8d authored by Sébastien Wilmet's avatar Sébastien Wilmet Committed by Matthias Clasen

texttag: add gtk_text_tag_changed()

The function is useful for a GtkTextTag subclass that adds new
properties.

https://bugzilla.gnome.org/show_bug.cgi?id=755416
parent cc2224cc
......@@ -3809,6 +3809,7 @@ gtk_text_tag_new
gtk_text_tag_get_priority
gtk_text_tag_set_priority
gtk_text_tag_event
gtk_text_tag_changed
GtkTextAttributes
GtkTextAppearance
gtk_text_attributes_new
......
......@@ -1822,20 +1822,12 @@ gtk_text_tag_set_property (GObject *object,
break;
}
/* FIXME I would like to do this after all set_property in a single
* g_object_set () have been called. But an idle function won't
* work; we need to emit when the tag is changed, not when we get
* around to the event loop. So blah, we eat some inefficiency.
/* The signal is emitted for each set_property(). A possible optimization is
* to send the signal only once when several properties are set at the same
* time with e.g. g_object_set(). The signal could be emitted when the notify
* signal is thawed.
*/
/* This is also somewhat weird since we emit another object's
* signal here, but the two objects are already tightly bound.
*/
if (priv->table)
g_signal_emit_by_name (priv->table,
"tag_changed",
text_tag, size_changed);
gtk_text_tag_changed (text_tag, size_changed);
}
static void
......@@ -2294,6 +2286,40 @@ gtk_text_tag_event (GtkTextTag *tag,
return retval;
}
/**
* gtk_text_tag_changed:
* @tag: a #GtkTextTag.
* @size_changed: whether the change affects the #GtkTextView layout.
*
* Emits the #GtkTextTagTable::tag-changed signal on the #GtkTextTagTable where
* the tag is included.
*
* The signal is already emitted when setting a #GtkTextTag property. This
* function is useful for a #GtkTextTag subclass.
*
* Since: 3.20
*/
void
gtk_text_tag_changed (GtkTextTag *tag,
gboolean size_changed)
{
GtkTextTagPrivate *priv;
g_return_if_fail (GTK_IS_TEXT_TAG (tag));
priv = tag->priv;
/* This is somewhat weird since we emit another object's signal here, but the
* two objects are already tightly bound. If a GtkTextTag::changed signal is
* added, this would increase significantly the number of signal connections.
*/
if (priv->table != NULL)
g_signal_emit_by_name (priv->table,
"tag-changed",
tag,
size_changed);
}
static int
tag_sort_func (gconstpointer first, gconstpointer second)
{
......
......@@ -112,7 +112,9 @@ gboolean gtk_text_tag_event (GtkTextTag *tag,
GObject *event_object,
GdkEvent *event,
const GtkTextIter *iter);
GDK_AVAILABLE_IN_3_20
void gtk_text_tag_changed (GtkTextTag *tag,
gboolean size_changed);
G_END_DECLS
......
......@@ -103,7 +103,7 @@ gtk_text_tag_table_class_init (GtkTextTagTableClass *klass)
* GtkTextTagTable::tag-changed:
* @texttagtable: the object which received the signal.
* @tag: the changed tag.
* @size_changed: whether the size has been changed.
* @size_changed: whether the change affects the #GtkTextView layout.
*/
signals[TAG_CHANGED] =
g_signal_new (I_("tag-changed"),
......
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