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 // this is set by subclasses, but don't make it public 28 /* package */ long mNativeInt; // pointer to native object 29 30 protected void finalize() throws Throwable { 31 try { 32 nativeDestructor(mNativeInt); 33 } finally { 34 super.finalize(); 35 } 36 } 37 38 private static native void nativeDestructor(long nativeDrawFilter); 39 } 40 41
