Class
ClutterBrightnessContrastEffect
Description [src]
class Clutter.BrightnessContrastEffect : Clutter.OffscreenEffect
{
/* No available fields */
}Increase/decrease brightness and/or contrast of actor.
ClutterBrightnessContrastEffect is a sub-class of ClutterEffect that
changes the overall brightness of a ClutterActor.
Constructors
clutter_brightness_contrast_effect_new
Creates a new ClutterBrightnessContrastEffect to be used with
clutter_actor_add_effect().
Instance methods
clutter_brightness_contrast_effect_get_brightness
Retrieves the change in brightness used by effect.
clutter_brightness_contrast_effect_set_brightness
The range of brightness is [-1.0, 1.0], where 0.0 designates no change;
a value below 0.0 indicates a decrease in brightness; and a value
above 0.0 indicates an increase of brightness.
clutter_brightness_contrast_effect_set_brightness_full
The range for each component is [-1.0, 1.0] where 0.0 designates no change, values below 0.0 mean a decrease in brightness, and values above indicate an increase.
clutter_brightness_contrast_effect_set_contrast
The range for contrast is [-1.0, 1.0], where 0.0 designates no change;
a value below 0.0 indicates a decrease in contrast; and a value above
0.0 indicates an increase.
clutter_brightness_contrast_effect_set_contrast_full
The range for each component is [-1.0, 1.0] where 0.0 designates no change, values below 0.0 mean a decrease in contrast, and values above indicate an increase.
Methods inherited from ClutterOffscreenEffect (5)
clutter_offscreen_effect_create_texture
Calls the Clutter.OffscreenEffectClass.create_texture virtual function of the effect.
clutter_offscreen_effect_get_pipeline
Retrieves the pipeline used as a render target for the offscreen
buffer created by effect.
clutter_offscreen_effect_get_target_size
Retrieves the size of the offscreen buffer used by effect to
paint the actor to which it has been applied.
clutter_offscreen_effect_get_texture
Retrieves the texture used as a render target for the offscreen
buffer created by effect.
clutter_offscreen_effect_paint_target
Calls the Clutter.OffscreenEffectClass.paint_target virtual function of the effect.
Methods inherited from ClutterEffect (1)
clutter_effect_queue_repaint
Queues a repaint of the effect. The effect can detect when the ‘paint’
method is called as a result of this function because it will not
have the CLUTTER_EFFECT_PAINT_ACTOR_DIRTY flag set. In that case the
effect is free to assume that the actor has not changed its
appearance since the last time it was painted so it doesn’t need to
call clutter_actor_continue_paint() if it can draw a cached
image. This is mostly intended for effects that are using a
%CoglOffscreen to redirect the actor (such as
%ClutterOffscreenEffect). In that case the effect can save a bit of
rendering time by painting the cached texture without causing the
entire actor to be painted.
Methods inherited from ClutterActorMeta (5)
clutter_actor_meta_get_actor
Retrieves a pointer to the ClutterActor that owns meta.
clutter_actor_meta_get_enabled
Retrieves whether meta is enabled.
clutter_actor_meta_get_name
Retrieves the name set using clutter_actor_meta_set_name().
clutter_actor_meta_set_enabled
Sets whether meta should be enabled or not.
clutter_actor_meta_set_name
Sets the name of meta.
Properties
Properties inherited from ClutterActorMeta (3)
Clutter.ActorMeta:actor
The ClutterActor attached to the ClutterActorMeta instance.
Clutter.ActorMeta:enabled
Whether or not the ClutterActorMeta is enabled.
Clutter.ActorMeta:name
The unique name to access the ClutterActorMeta.
Signals
Signals inherited from GObject (1)
GObject::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.