CanvasProperty.java revision 52244fff29042926e21fa897ef5ab11148e35299 
1/*
2 * Copyright (C) 2014 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 * TODO: Make public?
21 * @hide
22 */
23public final class CanvasProperty<T> {
24    private long mNativeContainer;
25
26    public static CanvasProperty<Float> createFloat(float initialValue) {
27        return new CanvasProperty<Float>(nCreateFloat(initialValue));
28    }
29
30    public static CanvasProperty<Paint> createPaint(Paint initialValue) {
31        return new CanvasProperty<Paint>(nCreatePaint(initialValue.mNativePaint));
32    }
33
34    private CanvasProperty(long nativeContainer) {
35        mNativeContainer = nativeContainer;
36    }
37
38    /** @hide */
39    public long getNativeContainer() {
40        return mNativeContainer;
41    }
42
43    @Override
44    protected void finalize() throws Throwable {
45        try {
46            nUnref(mNativeContainer);
47            mNativeContainer = 0;
48        } finally {
49            super.finalize();
50        }
51    }
52
53    private static native long nCreateFloat(float initialValue);
54    private static native long nCreatePaint(long initialValuePaintPtr);
55    private static native void nUnref(long ptr);
56}
57