PixelXorXfermode_Delegate.java revision 63fd87113cea6abec97a6cd966e090e9b590fc3b
1d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet/* 2d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * Copyright (C) 2010 The Android Open Source Project 3d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * 4d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * Licensed under the Apache License, Version 2.0 (the "License"); 5d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * you may not use this file except in compliance with the License. 6d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * You may obtain a copy of the License at 7d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * 8d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * http://www.apache.org/licenses/LICENSE-2.0 9d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * 10d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * Unless required by applicable law or agreed to in writing, software 11d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * distributed under the License is distributed on an "AS IS" BASIS, 12d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * See the License for the specific language governing permissions and 14d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * limitations under the License. 15d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet */ 16d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 17d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohetpackage android.graphics; 18d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 19d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohetimport com.android.layoutlib.bridge.impl.DelegateManager; 20d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 21d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohetimport java.awt.Composite; 22d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 23d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet/** 24d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * Delegate implementing the native methods of android.graphics.PixelXorXfermode 25d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * 26d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * Through the layoutlib_create tool, the original native methods of PixelXorXfermode have been 27d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * replaced by calls to methods of the same name in this delegate class. 28d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * 29d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * This class behaves like the original native implementation, but in Java, keeping previously 30d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * native data into its own objects and mapping them to int that are sent back and forth between 31d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * it and the original PixelXorXfermode class. 32d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * 33d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * Because this extends {@link Xfermode_Delegate}, there's no need to use a 34d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * {@link DelegateManager}, as all the PathEffect classes will be added to the manager owned by 35d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * {@link Xfermode_Delegate}. 36d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * 37d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet * @see Xfermode_Delegate 38d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet */ 39d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohetpublic class PixelXorXfermode_Delegate extends Xfermode_Delegate { 40d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet // ---- delegate data ---- 41d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 42d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet // ---- Public Helper methods ---- 43d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 44d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet @Override 4563fd87113cea6abec97a6cd966e090e9b590fc3bXavier Ducrohet public Composite getComposite(int alpha) { 46d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet // FIXME 47d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet return null; 48d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet } 49d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 50d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet @Override 51d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet public boolean isSupported() { 52d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet return false; 53d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet } 54d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 55d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet @Override 56d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet public String getSupportMessage() { 57d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet return "Pixel XOR Xfermodes are not supported in Layout Preview mode."; 58d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet } 59d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 60d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet // ---- native methods ---- 61d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 62d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet /*package*/ static int nativeCreate(int opColor) { 63d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet PixelXorXfermode_Delegate newDelegate = new PixelXorXfermode_Delegate(); 64d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet return sManager.addDelegate(newDelegate); 65d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet } 66d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet 67d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet // ---- Private delegate/helper methods ---- 68d348b6eaa98e23cb38d90906df109aaa2d20ea7fXavier Ducrohet} 69