/**
* st_scroll_view_update_vfade_effect:
* @self: a #StScrollView
* @fade_offset: The length of the fade effect, in pixels.
*
* Sets the height of the fade area area in pixels. A value of 0
* disables the effect.
*/
static void
st_scroll_view_update_vfade_effect (StScrollView *self,
float fade_offset)
{
StScrollViewPrivate *priv = ST_SCROLL_VIEW (self)->priv;
/* A fade amount of more than 0 enables the effect. */
if (fade_offset > 0.)
{
if (priv->vfade_effect == NULL) {
priv->vfade_effect = g_object_new (ST_TYPE_SCROLL_VIEW_FADE, NULL);
clutter_actor_add_effect_with_name (CLUTTER_ACTOR (self), "vfade",
CLUTTER_EFFECT (priv->vfade_effect));
}
g_object_set (priv->vfade_effect,
"fade-offset", fade_offset,
NULL);
}
else
{
if (priv->vfade_effect != NULL) {
clutter_actor_remove_effect (CLUTTER_ACTOR (self), CLUTTER_EFFECT (priv->vfade_effect));
priv->vfade_effect = NULL;
}
}
clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
}
void Animation::unloadShader() {
printf("Unloading previous shader...\n");
// Pop off the old shader:
if (shaderLoaded) {
shaderLoaded = false;
clutter_actor_remove_effect(shaderOutput, shaderEffect);
}
}
static void
st_scroll_view_dispose (GObject *object)
{
StScrollViewPrivate *priv = ST_SCROLL_VIEW (object)->priv;
if (priv->vfade_effect)
{
clutter_actor_remove_effect (CLUTTER_ACTOR (object), CLUTTER_EFFECT (priv->vfade_effect));
priv->vfade_effect = NULL;
}
if (priv->vscroll)
clutter_actor_destroy (priv->vscroll);
if (priv->hscroll)
clutter_actor_destroy (priv->hscroll);
/* For most reliable freeing of memory, an object with signals
* like StAdjustment should be explicitly disposed. Since we own
* the adjustments, we take care of that. This also disconnects
* the signal handlers that we established on creation.
*/
if (priv->hadjustment)
{
g_object_run_dispose (G_OBJECT (priv->hadjustment));
g_object_unref (priv->hadjustment);
priv->hadjustment = NULL;
}
if (priv->vadjustment)
{
g_object_run_dispose (G_OBJECT (priv->vadjustment));
g_object_unref (priv->vadjustment);
priv->vadjustment = NULL;
}
if (priv->setting_connect_id > 0) {
g_signal_handler_disconnect (priv->settings, priv->setting_connect_id);
priv->setting_connect_id = 0;
}
g_signal_handlers_disconnect_by_func (ST_SCROLL_VIEW (object), motion_event_cb, ST_SCROLL_VIEW (object));
G_OBJECT_CLASS (st_scroll_view_parent_class)->dispose (object);
}