/*
* Copyright 2015 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.plaidapp.util;
import android.graphics.ColorMatrix;
import android.util.Property;
/**
* An extension to {@link ColorMatrix} which caches the saturation value for animation purposes.
*/
public class ObservableColorMatrix extends ColorMatrix {
private float saturation = 1f;
public ObservableColorMatrix() {
super();
}
float getSaturation() {
return saturation;
}
@Override
public void setSaturation(float saturation) {
this.saturation = saturation;
super.setSaturation(saturation);
}
public static final Property<ObservableColorMatrix, Float> SATURATION =
AnimUtils.createFloatProperty(
new AnimUtils.FloatProp<ObservableColorMatrix>("saturation") {
@Override
public float get(ObservableColorMatrix ocm) {
return ocm.getSaturation();
}
@Override
public void set(ObservableColorMatrix ocm, float saturation) {
ocm.setSaturation(saturation);
}
});
}