1 /* 2 * Copyright (C) 2008 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 android.graphics.cts; 18 19 20 import android.graphics.Bitmap; 21 import android.graphics.Canvas; 22 import android.graphics.Color; 23 import android.graphics.Paint; 24 import android.graphics.Path; 25 import android.graphics.PathDashPathEffect; 26 import android.graphics.RectF; 27 import android.graphics.Bitmap.Config; 28 import android.graphics.Path.Direction; 29 30 import junit.framework.TestCase; 31 32 public class PathDashPathEffectTest extends TestCase { 33 34 private static final int SQUARE = 10; 35 private static final int ADVANCE = 30; 36 private static final int WIDTH = 100; 37 private static final int HEIGHT = 100; 38 39 public void testPathDashPathEffect() { 40 Bitmap b = Bitmap.createBitmap(WIDTH, HEIGHT, Config.ARGB_8888); 41 b.eraseColor(Color.BLACK); 42 PathDashPathEffect effect = new PathDashPathEffect(shape(), ADVANCE, 0, 43 PathDashPathEffect.Style.TRANSLATE); 44 Canvas canvas = new Canvas(b); 45 Paint p = new Paint(); 46 p.setPathEffect(effect); 47 p.setColor(Color.RED); 48 canvas.drawPath(path(), p); 49 50 Bitmap expected = Bitmap.createBitmap(WIDTH, HEIGHT, Config.ARGB_8888); 51 expected.eraseColor(Color.BLACK); 52 canvas = new Canvas(expected); 53 p = new Paint(); 54 p.setColor(Color.RED); 55 RectF rect = new RectF(0, HEIGHT / 2 - SQUARE, 0, HEIGHT / 2 + SQUARE); 56 for (int i = 0; i <= WIDTH + SQUARE; i += ADVANCE) { 57 rect.left = i - SQUARE; 58 rect.right = i + SQUARE; 59 canvas.drawRect(rect, p); 60 } 61 62 int diffCount = 0; 63 for (int y = 0; y < HEIGHT; y++) { 64 for (int x = 0; x < WIDTH; x++) { 65 if (expected.getPixel(x, y) != b.getPixel(x, y)) { 66 diffCount += 1; 67 } 68 } 69 } 70 assertEquals(0, diffCount); 71 } 72 73 private static Path path() { 74 Path p = new Path(); 75 p.moveTo(0, HEIGHT / 2); 76 p.lineTo(WIDTH, HEIGHT / 2); 77 return p; 78 } 79 80 private static Path shape() { 81 Path p = new Path(); 82 p.addRect(new RectF(-SQUARE, -SQUARE, SQUARE, SQUARE), Direction.CCW); 83 return p; 84 } 85 } 86
