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Only setup drag scrolling events if touchscreen mode is set

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We assume that touchscreen mode is ususally always set or never set,
so we can avoid the overhead.
This commit is contained in:
Christian Dywan 2009-10-15 23:47:00 +02:00
parent 35f032a1a4
commit c64a4334f6
1 changed files with 17 additions and 5 deletions
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22
katze/katze-scrolled.c
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@ -778,7 +778,6 @@ katze_scrolled_event_handler (GdkEvent* event,
stop_propagating = button_release_event (current_widget, &event->button, current_scrolled_window);
}
if (!stop_propagating)
katze_scrolled_event_handler_next (event, state);
@ -885,10 +884,15 @@ katze_scrolled_dispose (GObject* object)
static void
katze_scrolled_class_init (KatzeScrolledClass* class)
{
GObjectClass* gobject_class = G_OBJECT_CLASS (class);
GtkWidgetClass* widget_class = GTK_WIDGET_CLASS (class);
GtkContainerClass* container_class = GTK_CONTAINER_CLASS (class);
GObjectClass* gobject_class;
GtkWidgetClass* widget_class;
GtkContainerClass* container_class;
GParamFlags flags = G_PARAM_READWRITE | G_PARAM_CONSTRUCT;
GtkSettings* gtk_settings;
gobject_class = G_OBJECT_CLASS (class);
widget_class = GTK_WIDGET_CLASS (class);
container_class = GTK_CONTAINER_CLASS (class);
gobject_class->set_property = katze_scrolled_set_property;
gobject_class->get_property = katze_scrolled_get_property;
@ -938,7 +942,15 @@ katze_scrolled_class_init (KatzeScrolledClass* class)
activated_widgets = g_tree_new ((GCompareFunc)compare_pointers);
current_gdk_window = NULL;
katze_scrolled_event_handler_append (katze_scrolled_event_handler, NULL);
/* Usually touchscreen mode is either always set or it isn't, so it
should be a safe optimization to not setup events if not needed. */
if ((gtk_settings = gtk_settings_get_default ()))
{
gboolean touchscreen;
g_object_get (gtk_settings, "gtk-touchscreen-mode", &touchscreen, NULL);
if (touchscreen)
katze_scrolled_event_handler_append (katze_scrolled_event_handler, NULL);
}
g_type_class_add_private (class, sizeof (KatzeScrolledPrivate));
}