com.sun.scenario.effect.impl.state.BoxShadowState Maven / Gradle / Ivy
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* accompanied this code).
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package com.sun.scenario.effect.impl.state;
import com.sun.scenario.effect.Color4f;
/**
* The helper class for defining a 1 dimensional linear convolution shadow
* kernel for the LinearConvolveShadow Shader. This class leverages the
* {@link BoxBlurState} class for defining the kernel and simply stores
* additional {@code shadowColor} and {@code spread} properties for the
* associated support methods for the shadow version of the shader.
*/
public class BoxShadowState extends BoxBlurState {
private Color4f shadowColor;
private float spread;
@Override
public Color4f getShadowColor() {
return shadowColor;
}
public void setShadowColor(Color4f shadowColor) {
if (shadowColor == null) {
throw new IllegalArgumentException("Color must be non-null");
}
this.shadowColor = shadowColor;
}
@Override
public float getSpread() {
return spread;
}
public void setSpread(float spread) {
if (spread < 0f || spread > 1f) {
throw new IllegalArgumentException("Spread must be in the range [0,1]");
}
this.spread = spread;
}
@Override
public boolean isNop() {
// The shadow operation is never a NOP since it replaces the colors
// if nothing else.
return false;
}
@Override
public boolean isShadow() {
return true;
}
}