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 
finalize()33     protected void finalize() throws Throwable {
34         try {
35             nativeDestructor(mNativeInt);
36             mNativeInt = 0;
37         } finally {
38             super.finalize();
39         }
40     }
41 
nativeDestructor(long nativeDrawFilter)42     private static native void nativeDestructor(long nativeDrawFilter);
43 }
44 
45