1/*
2 * Copyright (C) 2018 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 com.android.systemui.recents;
18
19import android.graphics.Outline;
20import android.graphics.Path;
21import android.graphics.drawable.shapes.PathShape;
22import android.support.annotation.NonNull;
23
24/**
25 * Wrapper around {@link android.graphics.drawable.shapes.PathShape}
26 * that creates a shape with a triangular path (pointing up or down).
27 */
28public class TriangleShape extends PathShape {
29    private Path mTriangularPath;
30
31    public TriangleShape(Path path, float stdWidth, float stdHeight) {
32        super(path, stdWidth, stdHeight);
33        mTriangularPath = path;
34    }
35
36    public static TriangleShape create(float width, float height, boolean isPointingUp) {
37        Path triangularPath = new Path();
38        if (isPointingUp) {
39            triangularPath.moveTo(0, height);
40            triangularPath.lineTo(width, height);
41            triangularPath.lineTo(width / 2, 0);
42            triangularPath.close();
43        } else {
44            triangularPath.moveTo(0, 0);
45            triangularPath.lineTo(width / 2, height);
46            triangularPath.lineTo(width, 0);
47            triangularPath.close();
48        }
49        return new TriangleShape(triangularPath, width, height);
50    }
51
52    @Override
53    public void getOutline(@NonNull Outline outline) {
54        outline.setConvexPath(mTriangularPath);
55    }
56}
57