/**
* clutter_deform_effect_get_back_material:
* @effect: a #ClutterDeformEffect
*
* Retrieves the handle to the back face material used by @effect
*
* Return value: (transfer none): a handle for the material, or %NULL.
* The returned material is owned by the #ClutterDeformEffect and it
* should not be freed directly
*
* Since: 1.4
*/
CoglHandle
clutter_deform_effect_get_back_material (ClutterDeformEffect *effect)
{
g_return_val_if_fail (CLUTTER_IS_DEFORM_EFFECT (effect), NULL);
return effect->priv->back_pipeline;
}
/**
* clutter_deform_effect_get_n_tiles:
* @effect: a #ClutterDeformEffect
* @x_tiles: (out): return location for the number of horizontal tiles,
* or %NULL
* @y_tiles: (out): return location for the number of vertical tiles,
* or %NULL
*
* Retrieves the number of horizontal and vertical tiles used to sub-divide
* the actor's geometry during the effect
*
* Since: 1.4
*/
void
clutter_deform_effect_get_n_tiles (ClutterDeformEffect *effect,
guint *x_tiles,
guint *y_tiles)
{
g_return_if_fail (CLUTTER_IS_DEFORM_EFFECT (effect));
if (x_tiles != NULL)
*x_tiles = effect->priv->x_tiles;
if (y_tiles != NULL)
*y_tiles = effect->priv->y_tiles;
}
/**
* clutter_deform_effect_invalidate:
* @effect: a #ClutterDeformEffect
*
* Invalidates the @effect<!-- -->'s vertices and, if it is associated
* to an actor, it will queue a redraw
*
* Since: 1.4
*/
void
clutter_deform_effect_invalidate (ClutterDeformEffect *effect)
{
ClutterActor *actor;
g_return_if_fail (CLUTTER_IS_DEFORM_EFFECT (effect));
if (effect->priv->is_dirty)
return;
effect->priv->is_dirty = TRUE;
actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (effect));
if (actor != NULL)
clutter_effect_queue_repaint (CLUTTER_EFFECT (effect));
}
/**
* clutter_deform_effect_set_back_material:
* @effect: a #ClutterDeformEffect
* @material: (allow-none): a handle to a Cogl material
*
* Sets the material that should be used when drawing the back face
* of the actor during a deformation
*
* The #ClutterDeformEffect will take a reference on the material's
* handle
*
* Since: 1.4
*/
void
clutter_deform_effect_set_back_material (ClutterDeformEffect *effect,
CoglHandle material)
{
ClutterDeformEffectPrivate *priv;
g_return_if_fail (CLUTTER_IS_DEFORM_EFFECT (effect));
g_return_if_fail (material == COGL_INVALID_HANDLE || cogl_is_material (material));
priv = effect->priv;
clutter_deform_effect_free_back_material (effect);
priv->back_material = material;
if (priv->back_material != COGL_INVALID_HANDLE)
cogl_handle_ref (priv->back_material);
clutter_deform_effect_invalidate (effect);
}
/**
* clutter_deform_effect_set_back_material:
* @effect: a #ClutterDeformEffect
* @material: (allow-none): a handle to a Cogl material
*
* Sets the material that should be used when drawing the back face
* of the actor during a deformation
*
* The #ClutterDeformEffect will take a reference on the material's
* handle
*
* Since: 1.4
*/
void
clutter_deform_effect_set_back_material (ClutterDeformEffect *effect,
CoglHandle material)
{
ClutterDeformEffectPrivate *priv;
CoglPipeline *pipeline = COGL_PIPELINE (material);
g_return_if_fail (CLUTTER_IS_DEFORM_EFFECT (effect));
g_return_if_fail (pipeline == NULL || cogl_is_pipeline (pipeline));
priv = effect->priv;
clutter_deform_effect_free_back_pipeline (effect);
priv->back_pipeline = material;
if (priv->back_pipeline != NULL)
cogl_object_ref (priv->back_pipeline);
clutter_deform_effect_invalidate (effect);
}
/**
* clutter_deform_effect_set_n_tiles:
* @effect: a #ClutterDeformEffect
* @x_tiles: number of horizontal tiles
* @y_tiles: number of vertical tiles
*
* Sets the number of horizontal and vertical tiles to be used
* when applying the effect
*
* More tiles allow a finer grained deformation at the expenses
* of computation
*
* Since: 1.4
*/
void
clutter_deform_effect_set_n_tiles (ClutterDeformEffect *effect,
guint x_tiles,
guint y_tiles)
{
ClutterDeformEffectPrivate *priv;
gboolean tiles_changed = FALSE;
g_return_if_fail (CLUTTER_IS_DEFORM_EFFECT (effect));
g_return_if_fail (x_tiles > 0 && y_tiles > 0);
priv = effect->priv;
g_object_freeze_notify (G_OBJECT (effect));
if (priv->x_tiles != x_tiles)
{
priv->x_tiles = x_tiles;
g_object_notify_by_pspec (G_OBJECT (effect), obj_props[PROP_X_TILES]);
tiles_changed = TRUE;
}
if (priv->y_tiles != y_tiles)
{
priv->y_tiles = y_tiles;
g_object_notify_by_pspec (G_OBJECT (effect), obj_props[PROP_Y_TILES]);
tiles_changed = TRUE;
}
if (tiles_changed)
{
clutter_deform_effect_init_arrays (effect);
clutter_deform_effect_invalidate (effect);
}
g_object_thaw_notify (G_OBJECT (effect));
}