| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.google.android.test.hwui; |
| |
| import android.app.Activity; |
| import android.content.Context; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.BitmapShader; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.ComposeShader; |
| import android.graphics.LinearGradient; |
| import android.graphics.Matrix; |
| import android.graphics.Paint; |
| import android.graphics.PorterDuff; |
| import android.graphics.Shader; |
| import android.os.Bundle; |
| import android.view.View; |
| |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public class MoreShadersActivity extends Activity { |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| setContentView(new ShadersView(this)); |
| } |
| |
| static class ShadersView extends View { |
| private BitmapShader mScaledShader; |
| private int mTexWidth; |
| private int mTexHeight; |
| private Paint mPaint; |
| private float mDrawWidth; |
| private float mDrawHeight; |
| private LinearGradient mHorGradient; |
| private LinearGradient mVertGradient; |
| private ComposeShader mComposeShader; |
| private ComposeShader mCompose2Shader; |
| private Paint mLargePaint; |
| private BitmapShader mScaled2Shader; |
| |
| ShadersView(Context c) { |
| super(c); |
| |
| Bitmap texture = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1); |
| mTexWidth = texture.getWidth(); |
| mTexHeight = texture.getHeight(); |
| mDrawWidth = mTexWidth * 2.2f; |
| mDrawHeight = mTexHeight * 1.2f; |
| |
| mScaledShader = new BitmapShader(texture, Shader.TileMode.MIRROR, |
| Shader.TileMode.MIRROR); |
| Matrix m2 = new Matrix(); |
| m2.setScale(0.5f, 0.5f); |
| mScaledShader.setLocalMatrix(m2); |
| |
| mScaled2Shader = new BitmapShader(texture, Shader.TileMode.MIRROR, |
| Shader.TileMode.MIRROR); |
| Matrix m3 = new Matrix(); |
| m3.setScale(0.1f, 0.1f); |
| mScaled2Shader.setLocalMatrix(m3); |
| |
| mHorGradient = new LinearGradient(0.0f, 0.0f, mDrawWidth, 0.0f, |
| Color.RED, 0x7f00ff00, Shader.TileMode.CLAMP); |
| |
| mVertGradient = new LinearGradient(0.0f, 0.0f, 0.0f, mDrawHeight / 2.0f, |
| Color.YELLOW, Color.MAGENTA, Shader.TileMode.MIRROR); |
| |
| mComposeShader = new ComposeShader(mScaledShader, mHorGradient, |
| PorterDuff.Mode.SRC_OVER); |
| mCompose2Shader = new ComposeShader(mHorGradient, mScaledShader, |
| PorterDuff.Mode.SRC_OUT); |
| |
| mLargePaint = new Paint(); |
| mLargePaint.setAntiAlias(true); |
| mLargePaint.setTextSize(36.0f); |
| mLargePaint.setColor(0xff000000); |
| |
| mPaint = new Paint(); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| canvas.drawRGB(255, 255, 255); |
| |
| canvas.save(); |
| canvas.translate(40.0f, 40.0f); |
| |
| mPaint.setShader(mComposeShader); |
| canvas.drawRect(0.0f, 0.0f, mDrawWidth, mDrawHeight, mPaint); |
| |
| canvas.translate(0.0f, 40.0f + mDrawHeight); |
| mPaint.setShader(mCompose2Shader); |
| canvas.drawRect(0.0f, 0.0f, mDrawWidth, mDrawHeight, mPaint); |
| |
| canvas.restore(); |
| |
| canvas.drawText("OpenGL rendering", 0.0f, 20.0f, mLargePaint); |
| canvas.save(); |
| canvas.translate(40.0f + mDrawWidth + 40.0f, 40.0f); |
| |
| //mLargePaint.setShader(mHorGradient); |
| canvas.drawText("OpenGL rendering", 0.0f, 20.0f, mLargePaint); |
| |
| mLargePaint.setShader(mScaled2Shader); |
| canvas.drawText("OpenGL rendering", 0.0f, 60.0f, mLargePaint); |
| |
| mLargePaint.setShader(mCompose2Shader); |
| canvas.drawText("OpenGL rendering", 0.0f, 100.0f, mLargePaint); |
| |
| canvas.translate(0.0f, 40.0f + mDrawHeight); |
| mLargePaint.setShader(mVertGradient); |
| canvas.drawText("OpenGL rendering", 0.0f, 20.0f, mLargePaint); |
| |
| canvas.restore(); |
| } |
| } |
| } |