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.Paint; 23 import android.graphics.Path; 24 import android.graphics.RectF; 25 import android.os.Bundle; 26 import android.view.View; 27 28 @SuppressWarnings({"UnusedDeclaration"}) 29 public class ScaledPathsActivity extends Activity { 30 @Override onCreate(Bundle savedInstanceState)31 protected void onCreate(Bundle savedInstanceState) { 32 super.onCreate(savedInstanceState); 33 final PathsView view = new PathsView(this); 34 setContentView(view); 35 } 36 37 public static class PathsView extends View { 38 private final Paint mPathPaint; 39 private final Path mPath; 40 private final RectF mPathBounds = new RectF(); 41 PathsView(Context c)42 public PathsView(Context c) { 43 super(c); 44 45 mPathPaint = new Paint(); 46 mPathPaint.setAntiAlias(true); 47 mPathPaint.setColor(0xff0000ff); 48 mPathPaint.setStrokeWidth(5.0f); 49 mPathPaint.setStyle(Paint.Style.FILL); 50 51 mPath = new Path(); 52 mPath.moveTo(0.0f, 0.0f); 53 mPath.cubicTo(0.0f, 0.0f, 100.0f, 150.0f, 100.0f, 200.0f); 54 mPath.cubicTo(100.0f, 200.0f, 50.0f, 300.0f, -80.0f, 200.0f); 55 mPath.cubicTo(-80.0f, 200.0f, 100.0f, 200.0f, 200.0f, 0.0f); 56 57 mPath.computeBounds(mPathBounds, true); 58 } 59 60 @Override onDraw(Canvas canvas)61 protected void onDraw(Canvas canvas) { 62 super.onDraw(canvas); 63 canvas.drawARGB(255, 255, 255, 255); 64 65 mPathPaint.setColor(0xff0000ff); 66 mPathPaint.setStyle(Paint.Style.FILL); 67 68 canvas.save(); 69 drawPath(canvas, 1.0f, 1.0f); 70 drawPath(canvas, 2.0f, 2.0f); 71 drawPath(canvas, 4.0f, 4.0f); 72 canvas.restore(); 73 74 mPathPaint.setColor(0xffff0000); 75 mPathPaint.setStyle(Paint.Style.STROKE); 76 77 canvas.save(); 78 drawPath(canvas, 1.0f, 1.0f); 79 drawPath(canvas, 2.0f, 2.0f); 80 drawPath(canvas, 4.0f, 4.0f); 81 canvas.restore(); 82 } 83 drawPath(Canvas canvas, float scaleX, float scaleY)84 private void drawPath(Canvas canvas, float scaleX, float scaleY) { 85 canvas.save(); 86 canvas.scale(scaleX, scaleY); 87 canvas.drawPath(mPath, mPathPaint); 88 canvas.restore(); 89 canvas.translate(mPathBounds.width() * scaleX, 0.0f); 90 } 91 } 92 } 93