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.Outline;
21import android.graphics.Paint;
22
23/**
24 * Creates an arc shape. The arc shape starts at a specified
25 * angle and sweeps clockwise, drawing slices of pie.
26 * The arc can be drawn to a Canvas with its own draw() method,
27 * but more graphical control is available if you instead pass
28 * the ArcShape to a {@link android.graphics.drawable.ShapeDrawable}.
29 */
30public class ArcShape extends RectShape {
31    private float mStart;
32    private float mSweep;
33
34    /**
35     * ArcShape constructor.
36     *
37     * @param startAngle the angle (in degrees) where the arc begins
38     * @param sweepAngle the sweep angle (in degrees). Anything equal to or
39     *                   greater than 360 results in a complete circle/oval.
40     */
41    public ArcShape(float startAngle, float sweepAngle) {
42        mStart = startAngle;
43        mSweep = sweepAngle;
44    }
45
46    @Override
47    public void draw(Canvas canvas, Paint paint) {
48        canvas.drawArc(rect(), mStart, mSweep, true, paint);
49    }
50
51    @Override
52    public void getOutline(Outline outline) {
53        // Since we don't support concave outlines, arc shape does not attempt
54        // to provide an outline.
55    }
56}
57
58