1/*
2 * Copyright (C) 2006 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
17package android.graphics;
18
19/**
20 * This takes a mask, and blurs its edge by the specified radius. Whether or
21 * or not to include the original mask, and whether the blur goes outside,
22 * inside, or straddles, the original mask's border, is controlled by the
23 * Blur enum.
24 */
25public class BlurMaskFilter extends MaskFilter {
26
27    public enum Blur {
28        /**
29         * Blur inside and outside the original border.
30         */
31        NORMAL(0),
32
33        /**
34         * Draw solid inside the border, blur outside.
35         */
36        SOLID(1),
37
38        /**
39         * Draw nothing inside the border, blur outside.
40         */
41        OUTER(2),
42
43        /**
44         * Blur inside the border, draw nothing outside.
45         */
46        INNER(3);
47
48        Blur(int value) {
49            native_int = value;
50        }
51        final int native_int;
52    }
53
54    /**
55     * Create a blur maskfilter.
56     *
57     * @param radius The radius to extend the blur from the original mask. Must be > 0.
58     * @param style  The Blur to use
59     * @return       The new blur maskfilter
60     */
61    public BlurMaskFilter(float radius, Blur style) {
62        native_instance = nativeConstructor(radius, style.native_int);
63    }
64
65    private static native long nativeConstructor(float radius, int style);
66}
67