1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.graphics; 18 19 /** 20 * A DrawFilter subclass can be installed in a Canvas. When it is present, it 21 * can modify the paint that is used to draw (temporarily). With this, a filter 22 * can disable/enable antialiasing, or change the color for everything this is 23 * drawn. 24 */ 25 public class DrawFilter { 26 27 /** 28 * this is set by subclasses 29 * @hide 30 */ 31 public long mNativeInt; 32 33 protected void finalize() throws Throwable { 34 try { 35 nativeDestructor(mNativeInt); 36 mNativeInt = 0; 37 } finally { 38 super.finalize(); 39 } 40 } 41 42 private static native void nativeDestructor(long nativeDrawFilter); 43 } 44 45
