001/*
002 * SVG Salamander
003 * Copyright (c) 2004, Mark McKay
004 * All rights reserved.
005 *
006 * Redistribution and use in source and binary forms, with or 
007 * without modification, are permitted provided that the following
008 * conditions are met:
009 *
010 *   - Redistributions of source code must retain the above 
011 *     copyright notice, this list of conditions and the following
012 *     disclaimer.
013 *   - Redistributions in binary form must reproduce the above
014 *     copyright notice, this list of conditions and the following
015 *     disclaimer in the documentation and/or other materials 
016 *     provided with the distribution.
017 *
018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
019 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
020 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
021 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
022 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
023 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
025 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
026 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
027 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
029 * OF THE POSSIBILITY OF SUCH DAMAGE. 
030 * 
031 * Mark McKay can be contacted at mark@kitfox.com.  Salamander and other
032 * projects can be found at http://www.kitfox.com
033 *
034 * Created on April 1, 2004, 6:40 AM
035 */
036
037package com.kitfox.svg.composite;
038
039import com.kitfox.svg.SVGConst;
040import java.awt.*;
041import java.awt.image.*;
042import java.util.logging.Level;
043import java.util.logging.Logger;
044
045/**
046 * @author Mark McKay
047 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
048 */
049public class AdobeComposite implements Composite
050{
051    public static final int CT_NORMAL = 0;
052    public static final int CT_MULTIPLY = 1;
053    public static final int CT_LAST = 2;
054
055    final int compositeType;
056    final float extraAlpha;
057
058    /**
059     * Creates a new instance of AdobeComposite
060     * @param compositeType
061     * @param extraAlpha
062     */
063    public AdobeComposite(int compositeType, float extraAlpha)
064    {
065        this.compositeType = compositeType;
066        this.extraAlpha = extraAlpha;
067
068        if (compositeType < 0 || compositeType >= CT_LAST)
069        {
070            Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING, "Invalid composite type");
071        }
072
073        if (extraAlpha < 0f || extraAlpha > 1f)
074        {
075            Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING, "Invalid alpha");
076        }
077    }
078
079    public int getCompositeType() { return compositeType; }
080
081    public CompositeContext createContext(ColorModel srcColorModel, ColorModel dstColorModel, RenderingHints hints)
082    {
083        return new AdobeCompositeContext(compositeType, extraAlpha);
084    }
085
086}