1/*
2 * Copyright (C) 2007 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.drawable.shapes;
18
19import android.graphics.Canvas;
20import android.graphics.Paint;
21import android.graphics.Path;
22
23/**
24 * Creates geometric paths, utilizing the {@link android.graphics.Path} class.
25 * The path can be drawn to a Canvas with its own draw() method,
26 * but more graphical control is available if you instead pass
27 * the PathShape to a {@link android.graphics.drawable.ShapeDrawable}.
28 */
29public class PathShape extends Shape {
30    private Path    mPath;
31    private float   mStdWidth;
32    private float   mStdHeight;
33
34    private float   mScaleX;    // cached from onResize
35    private float   mScaleY;    // cached from onResize
36
37    /**
38     * PathShape constructor.
39     *
40     * @param path       a Path that defines the geometric paths for this shape
41     * @param stdWidth   the standard width for the shape. Any changes to the
42     *                   width with resize() will result in a width scaled based
43     *                   on the new width divided by this width.
44     * @param stdHeight  the standard height for the shape. Any changes to the
45     *                   height with resize() will result in a height scaled based
46     *                   on the new height divided by this height.
47     */
48    public PathShape(Path path, float stdWidth, float stdHeight) {
49        mPath = path;
50        mStdWidth = stdWidth;
51        mStdHeight = stdHeight;
52    }
53
54    @Override
55    public void draw(Canvas canvas, Paint paint) {
56        canvas.save();
57        canvas.scale(mScaleX, mScaleY);
58        canvas.drawPath(mPath, paint);
59        canvas.restore();
60    }
61
62    @Override
63    protected void onResize(float width, float height) {
64        mScaleX = width / mStdWidth;
65        mScaleY = height / mStdHeight;
66    }
67
68    @Override
69    public PathShape clone() throws CloneNotSupportedException {
70        PathShape shape = (PathShape) super.clone();
71        shape.mPath = new Path(mPath);
72        return shape;
73    }
74}
75
76