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.Bitmap; 22 import android.graphics.BitmapFactory; 23 import android.graphics.BitmapShader; 24 import android.graphics.Canvas; 25 import android.graphics.Color; 26 import android.graphics.ColorFilter; 27 import android.graphics.ComposeShader; 28 import android.graphics.LightingColorFilter; 29 import android.graphics.LinearGradient; 30 import android.graphics.Matrix; 31 import android.graphics.Paint; 32 import android.graphics.PorterDuff; 33 import android.graphics.Shader; 34 import android.os.Bundle; 35 import android.view.View; 36 37 @SuppressWarnings({"UnusedDeclaration"}) 38 public class MoreShadersActivity extends Activity { 39 @Override 40 protected void onCreate(Bundle savedInstanceState) { 41 super.onCreate(savedInstanceState); 42 43 setContentView(new ShadersView(this)); 44 } 45 46 static class ShadersView extends View { 47 private BitmapShader mScaledShader; 48 private int mTexWidth; 49 private int mTexHeight; 50 private Paint mPaint; 51 private float mDrawWidth; 52 private float mDrawHeight; 53 private LinearGradient mHorGradient; 54 private LinearGradient mVertGradient; 55 private ComposeShader mComposeShader; 56 private ComposeShader mCompose2Shader; 57 private Paint mLargePaint; 58 private BitmapShader mScaled2Shader; 59 private ColorFilter mColorFilter; 60 private final Matrix mMtx1; 61 62 ShadersView(Context c) { 63 super(c); 64 65 Bitmap texture = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1); 66 mTexWidth = texture.getWidth(); 67 mTexHeight = texture.getHeight(); 68 mDrawWidth = mTexWidth * 2.2f; 69 mDrawHeight = mTexHeight * 1.2f; 70 71 mScaledShader = new BitmapShader(texture, Shader.TileMode.MIRROR, 72 Shader.TileMode.MIRROR); 73 Matrix m2 = new Matrix(); 74 m2.setScale(0.1f, 0.1f); 75 mScaledShader.setLocalMatrix(m2); 76 77 mScaled2Shader = new BitmapShader(texture, Shader.TileMode.MIRROR, 78 Shader.TileMode.MIRROR); 79 Matrix m3 = new Matrix(); 80 m3.setScale(0.1f, 0.1f); 81 mScaled2Shader.setLocalMatrix(m3); 82 83 mHorGradient = new LinearGradient(0.0f, 0.0f, mDrawWidth, 0.0f, 84 Color.RED, 0x7f00ff00, Shader.TileMode.CLAMP); 85 Matrix m4 = new Matrix(); 86 m4.setScale(0.5f, 0.5f); 87 mHorGradient.setLocalMatrix(m4); 88 89 mVertGradient = new LinearGradient(0.0f, 0.0f, 0.0f, mDrawHeight / 2.0f, 90 Color.YELLOW, Color.MAGENTA, Shader.TileMode.MIRROR); 91 92 mComposeShader = new ComposeShader(mScaledShader, mHorGradient, 93 PorterDuff.Mode.SRC_OVER); 94 mMtx1 = new Matrix(); 95 mMtx1.setTranslate(mTexWidth / 2.0f, mTexHeight / 2.0f); 96 mMtx1.postRotate(45, 0, 0); 97 mComposeShader.setLocalMatrix(mMtx1); 98 99 mCompose2Shader = new ComposeShader(mHorGradient, mScaledShader, 100 PorterDuff.Mode.SRC_OUT); 101 102 mColorFilter = new LightingColorFilter(0x0060ffff, 0x00101030); 103 104 mLargePaint = new Paint(); 105 mLargePaint.setAntiAlias(true); 106 mLargePaint.setTextSize(36.0f); 107 mLargePaint.setColor(0xff000000); 108 mLargePaint.setShadowLayer(3.0f, 0.0f, 3.0f, 0x7f00ff00); 109 110 mPaint = new Paint(); 111 } 112 113 @Override 114 protected void onDraw(Canvas canvas) { 115 super.onDraw(canvas); 116 canvas.drawRGB(255, 255, 255); 117 118 canvas.save(); 119 canvas.translate(40.0f, 40.0f); 120 121 mPaint.setShader(mComposeShader); 122 canvas.drawRect(0.0f, 0.0f, mDrawWidth, mDrawHeight, mPaint); 123 124 canvas.translate(0.0f, 40.0f + mDrawHeight); 125 mPaint.setShader(mCompose2Shader); 126 canvas.drawRect(0.0f, 0.0f, mDrawWidth, mDrawHeight, mPaint); 127 128 canvas.restore(); 129 130 canvas.save(); 131 canvas.translate(40.0f + mDrawWidth + 40.0f, 40.0f); 132 133 mLargePaint.setShader(mHorGradient); 134 canvas.drawText("OpenGL rendering", 0.0f, 20.0f, mLargePaint); 135 136 mLargePaint.setShader(mScaled2Shader); 137 canvas.drawText("OpenGL rendering", 0.0f, 60.0f, mLargePaint); 138 139 mLargePaint.setShader(mCompose2Shader); 140 mLargePaint.setColorFilter(mColorFilter); 141 canvas.drawText("OpenGL rendering", 0.0f, 100.0f, mLargePaint); 142 mLargePaint.setColorFilter(null); 143 144 canvas.translate(0.0f, 40.0f + mDrawHeight); 145 mLargePaint.setShader(mVertGradient); 146 canvas.drawText("OpenGL rendering", 0.0f, 20.0f, mLargePaint); 147 148 canvas.restore(); 149 } 150 } 151 } 152
