Interface

ClutterAnimatable

Description [src] 

interface Clutter.Animatable : GObject.Object

Interface for animatable classes

ClutterAnimatable is an interface that allows a GObject class to control how an actor will animate a property.

Each ClutterAnimatable should implement the Clutter.AnimatableInterface.interpolate_value virtual function of the interface to compute the animation state between two values of an interval depending on a progress factor, expressed as a floating point value.

Prerequisite

In order to implement Animatable, your type must inherit fromGObject.

Implementations

Instance methods

clutter_animatable_find_property

Finds the GParamSpec for property_name.

clutter_animatable_get_actor

Get animated actor.

clutter_animatable_get_initial_state

Retrieves the current state of property_name and sets value with it.

clutter_animatable_interpolate_value

Asks a ClutterAnimatable implementation to interpolate a a named property between the initial and final values of a ClutterInterval, using progress as the interpolation value, and store the result inside value.

clutter_animatable_set_final_state

Sets the current state of property_name to value.

Interface structure 

struct ClutterAnimatableInterface {
  GParamSpec* (* find_property) (
    ClutterAnimatable* animatable,
    const gchar* property_name
  );
  void (* get_initial_state) (
    ClutterAnimatable* animatable,
    const gchar* property_name,
    GValue* value
  );
  void (* set_final_state) (
    ClutterAnimatable* animatable,
    const gchar* property_name,
    const GValue* value
  );
  gboolean (* interpolate_value) (
    ClutterAnimatable* animatable,
    const gchar* property_name,
    ClutterInterval* interval,
    gdouble progress,
    GValue* value
  );
  ClutterActor* (* get_actor) (
    ClutterAnimatable* animatable
  );
  
}

No description available.

Interface members
find_property 
GParamSpec* (* find_property) (
    ClutterAnimatable* animatable,
    const gchar* property_name
  )
 

Virtual function for retrieving the GParamSpec of an animatable property.
get_initial_state 
void (* get_initial_state) (
    ClutterAnimatable* animatable,
    const gchar* property_name,
    GValue* value
  )
 

Virtual function for retrieving the initial state of an animatable property.
set_final_state 
void (* set_final_state) (
    ClutterAnimatable* animatable,
    const gchar* property_name,
    const GValue* value
  )
 

Virtual function for setting the state of an animatable property.
interpolate_value 
gboolean (* interpolate_value) (
    ClutterAnimatable* animatable,
    const gchar* property_name,
    ClutterInterval* interval,
    gdouble progress,
    GValue* value
  )
 

Virtual function for interpolating the progress of a property.
get_actor 
ClutterActor* (* get_actor) (
    ClutterAnimatable* animatable
  )
 

Virtual function for getting associated actor.

Virtual methods

Clutter.Animatable.find_property

Finds the GParamSpec for property_name.

Clutter.Animatable.get_actor

Get animated actor.

Clutter.Animatable.get_initial_state

Retrieves the current state of property_name and sets value with it.

Clutter.Animatable.interpolate_value

Asks a ClutterAnimatable implementation to interpolate a a named property between the initial and final values of a ClutterInterval, using progress as the interpolation value, and store the result inside value.

Clutter.Animatable.set_final_state

Sets the current state of property_name to value.