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/*
* Copyright (c) 2009, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.scenario.effect;
import com.sun.javafx.geom.BaseBounds;
import com.sun.javafx.geom.DirtyRegionContainer;
import com.sun.javafx.geom.DirtyRegionPool;
import com.sun.javafx.geom.RectBounds;
import com.sun.javafx.geom.Rectangle;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.scenario.effect.impl.Renderer;
import com.sun.scenario.effect.impl.state.BoxShadowState;
import com.sun.scenario.effect.impl.state.LinearConvolveKernel;
/**
* A shadow effect using a box-shaped convolution kernel, with a configurable
* size for each dimension of the kernel and a number of passes to control
* the quality of the blur.
*/
public class BoxShadow extends AbstractShadow {
private final BoxShadowState state = new BoxShadowState();
/**
* Constructs a new {@code BoxShadow} effect with
* the default blur sizes (1, 1)
* and the default number of passes (1),
* using the default input for source data.
* This is a shorthand equivalent to:
*
* new BoxShadow(1, 1, 1, DefaultInput)
*
*/
public BoxShadow() {
this(1, 1);
}
/**
* Constructs a new {@code BoxShadow} effect with
* the given blur sizes
* and the default number of passes (1),
* using the default input for source data.
* This is a shorthand equivalent to:
*
* new BoxShadow(hsize, vsize, 1, DefaultInput)
*
*
* @param hsize the horizontal size of the BoxShadow kernel
* @param vsize the vertical size of the BoxShadow kernel
* @throws IllegalArgumentException if either {@code hsize}
* or {@code vsize} is outside the allowable range
*/
public BoxShadow(int hsize, int vsize) {
this(hsize, vsize, 1, DefaultInput);
}
/**
* Constructs a new {@code BoxShadow} effect with
* the given blur sizes
* and number of passes,
* using the default input for source data.
* This is a shorthand equivalent to:
*
* new BoxShadow(hsize, vsize, passes, DefaultInput)
*
*
* @param hsize the horizontal size of the BoxShadow kernel
* @param vsize the vertical size of the BoxShadow kernel
* @param passes the number of blur passes to execute
* @throws IllegalArgumentException if either {@code hsize}
* or {@code vsize} or {@code passes}
* is outside the allowable range
*/
public BoxShadow(int hsize, int vsize, int passes) {
this(hsize, vsize, passes, DefaultInput);
}
/**
* Constructs a new {@code BoxShadow} effect with
* the given blur sizes
* and number of passes,
* using the output of the specified effect for source data.
*
* @param hsize the horizontal size of the BoxShadow kernel
* @param vsize the vertical size of the BoxShadow kernel
* @param passes the number of blur passes to execute
* @param input the single input {@code Effect}
* @throws IllegalArgumentException if either {@code hsize}
* or {@code vsize} or {@code passes}
* is outside the allowable range
*/
public BoxShadow(int hsize, int vsize, int passes, Effect input) {
super(input);
setHorizontalSize(hsize);
setVerticalSize(vsize);
setPasses(passes);
setColor(Color4f.BLACK);
setSpread(0f);
}
@Override
LinearConvolveKernel getState() {
return state;
}
/**
* Returns the input for this {@code Effect}.
*
* @return the input for this {@code Effect}
*/
public final Effect getInput() {
return getInputs().get(0);
}
/**
* Sets the input for this {@code Effect}.
* Sets the input for this {@code Effect} to a specific
* {@code Effect} or to the default input if {@code input} is
* {@code null}.
*
* @param input the input for this {@code Effect}
*/
public void setInput(Effect input) {
setInput(0, input);
}
/**
* Returns the horizontal size of the effect kernel.
*
* @return the horizontal size of the effect kernel
*/
public int getHorizontalSize() {
return state.getHsize();
}
/**
* Sets the horizontal size of the effect kernel.
*
* Min: 0
* Max: 255
* Default: 1
* Identity: 0
*
*
* @param hsize the horizontal size of the effect kernel
* @throws IllegalArgumentException if {@code hsize}
* is outside the allowable range
*/
public final void setHorizontalSize(int hsize) {
state.setHsize(hsize);
}
/**
* Returns the vertical size of the effect kernel.
*
* @return the vertical size of the effect kernel
*/
public int getVerticalSize() {
return state.getVsize();
}
/**
* Sets the vertical size of the effect kernel.
*
* Min: 0
* Max: 255
* Default: 1
* Identity: 0
*
*
* @param vsize the vertical size of the effect kernel
* @throws IllegalArgumentException if {@code vsize}
* is outside the allowable range
*/
public final void setVerticalSize(int vsize) {
state.setVsize(vsize);
}
/**
* Returns the number of passes of the effect kernel to control the
* quality of the blur.
*
* @return the number of passes of the effect kernel
*/
public int getPasses() {
return state.getBlurPasses();
}
/**
* Sets the number of passes of the effect kernel to control the
* quality of the blur.
*
* Min: 0
* Max: 3
* Default: 1
* Identity: 0
*
* A setting of 1 creates a low quality blur. A setting of 3 creates
* a blur that is very close to a Gaussian blur.
*
* @param passes
* @throws IllegalArgumentException if {@code passes} is outside the
* allowable range
*/
public final void setPasses(int passes) {
state.setBlurPasses(passes);
}
/**
* Returns the shadow color.
*
* @return the shadow color
*/
public Color4f getColor() {
return state.getShadowColor();
}
/**
* Sets the shadow color.
*
*
* @param color the shadow color
* @throws IllegalArgumentException if {@code color} is null
*/
public final void setColor(Color4f color) {
state.setShadowColor(color);
}
/**
* Gets the spread of the shadow effect.
*
* @return the spread of the shadow effect
*/
public float getSpread() {
return state.getSpread();
}
/**
* Sets the spread of the shadow effect.
* The spread is the portion of the radius where the contribution of
* the source material will be 100%.
* The remaining portion of the radius will have a contribution
* controlled by the Blur kernel.
* A spread of {@code 0.0} will result in a pure box-blur distribution
* of the shadow.
* A spread of {@code 1.0} will result in a solid growth outward of the
* source material opacity to the limit of the kernel sizes with a very
* sharp cutoff to transparency at the edge of the kernel.
*