| /* |
| * 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 com.android.tools.layoutlib.annotations.LayoutlibDelegate; |
| |
| import android.graphics.Shader.TileMode; |
| |
| /** |
| * Delegate implementing the native methods of android.graphics.Shader |
| * |
| * Through the layoutlib_create tool, the original native methods of Shader 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 Shader class. |
| * |
| * This also serve as a base class for all Shader delegate classes. |
| * |
| * @see DelegateManager |
| * |
| */ |
| public abstract class Shader_Delegate { |
| |
| // ---- delegate manager ---- |
| protected static final DelegateManager<Shader_Delegate> sManager = |
| new DelegateManager<Shader_Delegate>(); |
| |
| // ---- delegate helper data ---- |
| |
| // ---- delegate data ---- |
| private Matrix_Delegate mLocalMatrix = null; |
| |
| // ---- Public Helper methods ---- |
| |
| public static Shader_Delegate getDelegate(int nativeShader) { |
| return sManager.getDelegate(nativeShader); |
| } |
| |
| /** |
| * Returns the {@link TileMode} matching the given int. |
| * @param tileMode the tile mode int value |
| * @return the TileMode enum. |
| */ |
| public static TileMode getTileMode(int tileMode) { |
| for (TileMode tm : TileMode.values()) { |
| if (tm.nativeInt == tileMode) { |
| return tm; |
| } |
| } |
| |
| assert false; |
| return TileMode.CLAMP; |
| } |
| |
| public abstract java.awt.Paint getJavaPaint(); |
| public abstract boolean isSupported(); |
| public abstract String getSupportMessage(); |
| |
| // ---- native methods ---- |
| |
| @LayoutlibDelegate |
| /*package*/ static void nativeDestructor(int native_shader, int native_skiaShader) { |
| sManager.removeJavaReferenceFor(native_shader); |
| } |
| |
| @LayoutlibDelegate |
| /*package*/ static void nativeSetLocalMatrix(int native_shader, int native_skiaShader, |
| int matrix_instance) { |
| // get the delegate from the native int. |
| Shader_Delegate shaderDelegate = sManager.getDelegate(native_shader); |
| if (shaderDelegate == null) { |
| return; |
| } |
| |
| shaderDelegate.mLocalMatrix = Matrix_Delegate.getDelegate(matrix_instance); |
| } |
| |
| // ---- Private delegate/helper methods ---- |
| |
| protected java.awt.geom.AffineTransform getLocalMatrix() { |
| if (mLocalMatrix != null) { |
| return mLocalMatrix.getAffineTransform(); |
| } |
| |
| return new java.awt.geom.AffineTransform(); |
| } |
| |
| } |