1 /* 2 * Copyright (C) 2010 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 17 package com.android.test.hwui; 18 19 import android.app.Activity; 20 import android.content.Context; 21 import android.graphics.Canvas; 22 import android.graphics.Color; 23 import android.graphics.Paint; 24 import android.graphics.Path; 25 import android.os.Bundle; 26 import android.util.Log; 27 import android.view.View; 28 29 @SuppressWarnings({"UnusedDeclaration"}) 30 public class PathOpsActivity extends Activity { 31 @Override onCreate(Bundle savedInstanceState)32 protected void onCreate(Bundle savedInstanceState) { 33 super.onCreate(savedInstanceState); 34 final PathsView view = new PathsView(this); 35 setContentView(view); 36 } 37 38 public static class PathsView extends View { 39 private final Paint mPaint; 40 private Path[] mPaths; 41 private float mSize; 42 43 PathsView(Context c)44 public PathsView(Context c) { 45 super(c); 46 47 mPaint = new Paint(); 48 mPaint.setAntiAlias(true); 49 mPaint.setStyle(Paint.Style.FILL); 50 mPaint.setColor(Color.RED); 51 } 52 53 @Override onSizeChanged(int w, int h, int oldw, int oldh)54 protected void onSizeChanged(int w, int h, int oldw, int oldh) { 55 super.onSizeChanged(w, h, oldw, oldh); 56 57 Path.Op[] ops = Path.Op.values(); 58 mPaths = new Path[ops.length]; 59 60 mSize = w / (ops.length * 2.0f); 61 62 Path p1 = new Path(); 63 p1.addRect(0.0f, 0.0f, mSize, mSize, Path.Direction.CW); 64 65 Path p2 = new Path(); 66 p2.addCircle(mSize, mSize, mSize / 2.0f, Path.Direction.CW); 67 68 for (int i = 0; i < ops.length; i++) { 69 mPaths[i] = new Path(); 70 if (!mPaths[i].op(p1, p2, ops[i])) { 71 Log.d("PathOps", ops[i].name() + " failed!"); 72 } 73 } 74 } 75 76 @Override onDraw(Canvas canvas)77 protected void onDraw(Canvas canvas) { 78 super.onDraw(canvas); 79 80 canvas.translate(mSize * 0.2f, getHeight() / 2.0f); 81 for (Path path : mPaths) { 82 canvas.drawPath(path, mPaint); 83 canvas.translate(mSize * 1.8f, 0.0f); 84 } 85 } 86 } 87 } 88