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/*
* 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.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 AdvancedBlendActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new ShadersView(this));
}
public 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 ComposeShader mComposeShader;
private ComposeShader mCompose2Shader;
private ComposeShader mCompose3Shader;
private ComposeShader mCompose4Shader;
private ComposeShader mCompose5Shader;
private ComposeShader mCompose6Shader;
private BitmapShader mScaled2Shader;
public 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.BLACK, Color.WHITE, Shader.TileMode.CLAMP);
mComposeShader = new ComposeShader(mScaledShader, mHorGradient,
PorterDuff.Mode.DARKEN);
mCompose2Shader = new ComposeShader(mScaledShader, mHorGradient,
PorterDuff.Mode.LIGHTEN);
mCompose3Shader = new ComposeShader(mScaledShader, mHorGradient,
PorterDuff.Mode.MULTIPLY);
mCompose4Shader = new ComposeShader(mScaledShader, mHorGradient,
PorterDuff.Mode.SCREEN);
mCompose5Shader = new ComposeShader(mScaledShader, mHorGradient,
PorterDuff.Mode.ADD);
mCompose6Shader = new ComposeShader(mHorGradient, mScaledShader,
PorterDuff.Mode.OVERLAY);
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.translate(0.0f, 40.0f + mDrawHeight);
mPaint.setShader(mCompose3Shader);
canvas.drawRect(0.0f, 0.0f, mDrawWidth, mDrawHeight, mPaint);
canvas.restore();
canvas.save();
canvas.translate(40.0f + mDrawWidth + 40.0f, 40.0f);
mPaint.setShader(mCompose4Shader);
canvas.drawRect(0.0f, 0.0f, mDrawWidth, mDrawHeight, mPaint);
canvas.translate(0.0f, 40.0f + mDrawHeight);
mPaint.setShader(mCompose5Shader);
canvas.drawRect(0.0f, 0.0f, mDrawWidth, mDrawHeight, mPaint);
canvas.translate(0.0f, 40.0f + mDrawHeight);
mPaint.setShader(mCompose6Shader);
canvas.drawRect(0.0f, 0.0f, mDrawWidth, mDrawHeight, mPaint);
canvas.restore();
}
}
}
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