clutter-text: prevent text buffer creation if not needed

When allocating or asking for preferred width/height on a ClutterText,
it can notify a change on buffer/text/max-length if no text has been
set.

https://bugzilla.gnome.org/show_bug.cgi?id=703882
This commit is contained in:
Lionel Landwerlin 2013-07-09 16:46:35 +01:00 committed by Emmanuele Bassi
parent 6227f7a0f5
commit eed9496056

View File

@ -344,6 +344,18 @@ clutter_text_clear_selection (ClutterText *self)
}
}
static gboolean
clutter_text_is_empty (ClutterText *self)
{
if (self->priv->buffer == NULL)
return TRUE;
if (clutter_text_buffer_get_length (self->priv->buffer) == 0)
return TRUE;
return FALSE;
}
static gchar *
clutter_text_get_display_text (ClutterText *self)
{
@ -351,6 +363,13 @@ clutter_text_get_display_text (ClutterText *self)
ClutterTextBuffer *buffer;
const gchar *text;
/* short-circuit the case where the buffer is unset or it's empty,
* to avoid creating a pointless TextBuffer and emitting
* notifications with it
*/
if (clutter_text_is_empty (self))
return g_strdup ("");
buffer = get_buffer (self);
text = clutter_text_buffer_get_text (buffer);