ClutterBehaviourOpacity

ClutterBehaviourOpacity — A behaviour controlling opacity

Synopsis

struct              ClutterBehaviourOpacity;
struct              ClutterBehaviourOpacityClass;
ClutterBehaviour *  clutter_behaviour_opacity_new       (ClutterAlpha *alpha,
                                                         guint8 opacity_start,
                                                         guint8 opacity_end);
void                clutter_behaviour_opacity_set_bounds
                                                        (ClutterBehaviourOpacity *behaviour,
                                                         guint8 opacity_start,
                                                         guint8 opacity_end);
void                clutter_behaviour_opacity_get_bounds
                                                        (ClutterBehaviourOpacity *behaviour,
                                                         guint8 *opacity_start,
                                                         guint8 *opacity_end);

Object Hierarchy

  GObject
   +----ClutterBehaviour
         +----ClutterBehaviourOpacity

Implemented Interfaces

ClutterBehaviourOpacity implements ClutterScriptable.

Properties

  "opacity-end"              guint                 : Read / Write
  "opacity-start"            guint                 : Read / Write

Description

ClutterBehaviourOpacity controls the opacity of a set of actors.

Details

struct ClutterBehaviourOpacity

struct ClutterBehaviourOpacity;

Warning

ClutterBehaviourOpacity has been deprecated since version 1.6 and should not be used in newly-written code. Use clutter_actor_animate() and "opacity" instead.

The ClutterBehaviourOpacity structure contains only private data and should be accessed using the provided API

Since 0.2

struct ClutterBehaviourOpacityClass

struct ClutterBehaviourOpacityClass {
};

Warning

ClutterBehaviourOpacityClass is deprecated and should not be used in newly-written code. 1.6

The ClutterBehaviourOpacityClass structure contains only private data

Since 0.2

clutter_behaviour_opacity_new ()

ClutterBehaviour *  clutter_behaviour_opacity_new       (ClutterAlpha *alpha,
                                                         guint8 opacity_start,
                                                         guint8 opacity_end);

Warning

clutter_behaviour_opacity_new is deprecated and should not be used in newly-written code. 1.6

Creates a new ClutterBehaviourOpacity object, driven by alpha which controls the opacity property of every actor, making it change in the interval between opacity_start and opacity_end.

If alpha is not NULL, the ClutterBehaviour will take ownership of the ClutterAlpha instance. In the case when alpha is NULL, it can be set later with clutter_behaviour_set_alpha().

alpha :

 a ClutterAlpha instance, or NULL. [allow-none]

opacity_start :

 minimum level of opacity

opacity_end :

 maximum level of opacity

Returns :

 the newly created ClutterBehaviourOpacity

Since 0.2

clutter_behaviour_opacity_set_bounds ()

void                clutter_behaviour_opacity_set_bounds
                                                        (ClutterBehaviourOpacity *behaviour,
                                                         guint8 opacity_start,
                                                         guint8 opacity_end);

Warning

clutter_behaviour_opacity_set_bounds is deprecated and should not be used in newly-written code. 1.6

Sets the initial and final levels of the opacity applied by behaviour on each actor it controls.

behaviour :

 a ClutterBehaviourOpacity

opacity_start :

 minimum level of opacity

opacity_end :

 maximum level of opacity

Since 0.6

clutter_behaviour_opacity_get_bounds ()

void                clutter_behaviour_opacity_get_bounds
                                                        (ClutterBehaviourOpacity *behaviour,
                                                         guint8 *opacity_start,
                                                         guint8 *opacity_end);

Warning

clutter_behaviour_opacity_get_bounds is deprecated and should not be used in newly-written code. 1.6

Gets the initial and final levels of the opacity applied by behaviour on each actor it controls.

behaviour :

 a ClutterBehaviourOpacity

opacity_start :

 return location for the minimum level of opacity, or NULL. [out]

opacity_end :

 return location for the maximum level of opacity, or NULL. [out]

Since 0.6

Property Details

The "opacity-end" property

  "opacity-end"              guint                 : Read / Write

Warning

ClutterBehaviourOpacity:opacity-end is deprecated and should not be used in newly-written code. 1.6

Final opacity level of the behaviour.

Allowed values: <= 255

Default value: 0

Since 0.2

The "opacity-start" property

  "opacity-start"            guint                 : Read / Write

Warning

ClutterBehaviourOpacity:opacity-start is deprecated and should not be used in newly-written code. 1.6

Initial opacity level of the behaviour.

Allowed values: <= 255

Default value: 0

Since 0.2

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