| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.graphics; |
| |
| import com.android.layoutlib.bridge.impl.DelegateManager; |
| |
| import java.awt.Composite; |
| |
| /** |
| * Delegate implementing the native methods of android.graphics.Xfermode |
| * |
| * Through the layoutlib_create tool, the original native methods of Xfermode have been replaced |
| * by calls to methods of the same name in this delegate class. |
| * |
| * This class behaves like the original native implementation, but in Java, keeping previously |
| * native data into its own objects and mapping them to int that are sent back and forth between |
| * it and the original Xfermode class. |
| * |
| * This also serve as a base class for all Xfermode delegate classes. |
| * |
| * @see DelegateManager |
| * |
| */ |
| public abstract class Xfermode_Delegate { |
| |
| // ---- delegate manager ---- |
| protected static final DelegateManager<Xfermode_Delegate> sManager = |
| new DelegateManager<Xfermode_Delegate>(); |
| |
| // ---- delegate helper data ---- |
| |
| // ---- delegate data ---- |
| |
| // ---- Public Helper methods ---- |
| |
| public static Xfermode_Delegate getDelegate(int native_instance) { |
| return sManager.getDelegate(native_instance); |
| } |
| |
| public abstract Composite getComposite(int alpha); |
| public abstract boolean isSupported(); |
| public abstract String getSupportMessage(); |
| |
| |
| // ---- native methods ---- |
| |
| /*package*/ static void finalizer(int native_instance) { |
| sManager.removeDelegate(native_instance); |
| } |
| |
| // ---- Private delegate/helper methods ---- |
| |
| } |