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.

Hierarchy

hierarchy this ClutterBrightnessContrastEffect ancestor_0 ClutterOffscreenEffect ancestor_0--this ancestor_1 ClutterEffect ancestor_1--ancestor_0 ancestor_2 ClutterActorMeta ancestor_2--ancestor_1 ancestor_3 GInitiallyUnowned ancestor_3--ancestor_2 ancestor_4 GObject ancestor_4--ancestor_3

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_get_contrast

Retrieves the contrast value 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.

Methods inherited from GObject (43)

Please see GObject for a full list of methods.

Properties

Clutter.BrightnessContrastEffect:brightness

The brightness change to apply to the effect.

Clutter.BrightnessContrastEffect:contrast

The contrast change to apply to the effect.

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.

Class structure

struct ClutterBrightnessContrastEffectClass {
  ClutterOffscreenEffectClass parent_class;
  CoglPipeline* base_pipeline;
  
}

No description available.

Class members
parent_class: ClutterOffscreenEffectClass

No description available.

base_pipeline: CoglPipeline*

No description available.