Trait animate::AnimatableExt

pub trait AnimatableExt: 'static {
    fn find_property(&self, property_name: &str) -> Option<ParamSpec>;
    fn get_initial_state(&self, property_name: &str, value: &mut Value);
    fn interpolate_value<P: IsA<Interval>>(
        &self, 
        property_name: &str, 
        interval: &P, 
        progress: f64
    ) -> Option<Value>;
    fn set_final_state(&self, property_name: &str, value: &Value);
}

Trait containing all Animatable methods.

Implementors

Actor, Animatable, Box, Clone, Group, Rectangle, ScrollActor, Stage, Text, Texture

Required methods

fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Finds the gobject::ParamSpec for property_name

property_name

the name of the animatable property to find

Returns

The gobject::ParamSpec for the given property or None

fn get_initial_state(&self, property_name: &str, value: &mut Value)

Retrieves the current state of property_name and sets value with it

property_name

the name of the animatable property to retrieve

value

a gobject::Value initialized to the type of the property to retrieve

fn interpolate_value<P: IsA<Interval>>(
    &self,
    property_name: &str,
    interval: &P,
    progress: f64
) -> Option<Value>

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

This function should be used for every property animation involving Animatables.

This function replaces Animatable::animate_property.

property_name

the name of the property to interpolate

interval

a Interval with the animation range

progress

the progress to use to interpolate between the initial and final values of the interval

value

return location for an initialized gobject::Value using the same type of the interval

Returns

true if the interpolation was successful, and false otherwise

fn set_final_state(&self, property_name: &str, value: &Value)

Sets the current state of property_name to value

property_name

the name of the animatable property to set

value

the value of the animatable property to set

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Implementors

impl<O: IsA<Animatable>> AnimatableExt for O

fn find_property(&self, property_name: &str) -> Option<ParamSpec>

fn get_initial_state(&self, property_name: &str, value: &mut Value)

fn interpolate_value<P: IsA<Interval>>(
    &self,
    property_name: &str,
    interval: &P,
    progress: f64
) -> Option<Value>

fn set_final_state(&self, property_name: &str, value: &Value)

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