| /* |
| * Copyright (c) 2005, 2006, 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package javax.swing.plaf.nimbus; |
| |
| import sun.awt.AppContext; |
| |
| import java.awt.image.BufferedImage; |
| import java.lang.ref.SoftReference; |
| |
| /** |
| * Effect |
| * |
| * @author Created by Jasper Potts (Jun 18, 2007) |
| */ |
| abstract class Effect { |
| enum EffectType { |
| UNDER, BLENDED, OVER |
| } |
| |
| // ================================================================================================================= |
| // Abstract Methods |
| |
| /** |
| * Get the type of this effect, one of UNDER,BLENDED,OVER. UNDER means the result of apply effect should be painted |
| * under the src image. BLENDED means the result of apply sffect contains a modified src image so just it should be |
| * painted. OVER means the result of apply effect should be painted over the src image. |
| * |
| * @return The effect type |
| */ |
| abstract EffectType getEffectType(); |
| |
| /** |
| * Get the opacity to use to paint the result effected image if the EffectType is UNDER or OVER. |
| * |
| * @return The opactity for the effect, 0.0f -> 1.0f |
| */ |
| abstract float getOpacity(); |
| |
| /** |
| * Apply the effect to the src image generating the result . The result image may or may not contain the source |
| * image depending on what the effect type is. |
| * |
| * @param src The source image for applying the effect to |
| * @param dst The dstination image to paint effect result into. If this is null then a new image will be created |
| * @param w The width of the src image to apply effect to, this allow the src and dst buffers to be bigger than |
| * the area the need effect applied to it |
| * @param h The height of the src image to apply effect to, this allow the src and dst buffers to be bigger than |
| * the area the need effect applied to it |
| * @return The result of appl |
| */ |
| abstract BufferedImage applyEffect(BufferedImage src, BufferedImage dst, int w, int h); |
| |
| // ================================================================================================================= |
| // Static data cache |
| |
| protected static ArrayCache getArrayCache() { |
| ArrayCache cache = (ArrayCache)AppContext.getAppContext().get(ArrayCache.class); |
| if (cache == null){ |
| cache = new ArrayCache(); |
| AppContext.getAppContext().put(ArrayCache.class,cache); |
| } |
| return cache; |
| } |
| |
| protected static class ArrayCache { |
| private SoftReference<int[]> tmpIntArray = null; |
| private SoftReference<byte[]> tmpByteArray1 = null; |
| private SoftReference<byte[]> tmpByteArray2 = null; |
| private SoftReference<byte[]> tmpByteArray3 = null; |
| |
| protected int[] getTmpIntArray(int size) { |
| int[] tmp; |
| if (tmpIntArray == null || (tmp = tmpIntArray.get()) == null || tmp.length < size) { |
| // create new array |
| tmp = new int[size]; |
| tmpIntArray = new SoftReference<int[]>(tmp); |
| } |
| return tmp; |
| } |
| |
| protected byte[] getTmpByteArray1(int size) { |
| byte[] tmp; |
| if (tmpByteArray1 == null || (tmp = tmpByteArray1.get()) == null || tmp.length < size) { |
| // create new array |
| tmp = new byte[size]; |
| tmpByteArray1 = new SoftReference<byte[]>(tmp); |
| } |
| return tmp; |
| } |
| |
| protected byte[] getTmpByteArray2(int size) { |
| byte[] tmp; |
| if (tmpByteArray2 == null || (tmp = tmpByteArray2.get()) == null || tmp.length < size) { |
| // create new array |
| tmp = new byte[size]; |
| tmpByteArray2 = new SoftReference<byte[]>(tmp); |
| } |
| return tmp; |
| } |
| |
| protected byte[] getTmpByteArray3(int size) { |
| byte[] tmp; |
| if (tmpByteArray3 == null || (tmp = tmpByteArray3.get()) == null || tmp.length < size) { |
| // create new array |
| tmp = new byte[size]; |
| tmpByteArray3 = new SoftReference<byte[]>(tmp); |
| } |
| return tmp; |
| } |
| } |
| } |