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      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.Canvas;
     24 import android.graphics.Paint;
     25 import android.graphics.Path;
     26 import android.graphics.PorterDuff;
     27 import android.graphics.PorterDuffXfermode;
     28 import android.os.Bundle;
     29 import android.view.View;
     30 
     31 @SuppressWarnings({"UnusedDeclaration"})
     32 public class ClearActivity extends Activity {
     33     @Override
     34     protected void onCreate(Bundle savedInstanceState) {
     35         super.onCreate(savedInstanceState);
     36         final PathsView view = new PathsView(this);
     37         setContentView(view);
     38     }
     39 
     40     public static class PathsView extends View {
     41         private final Bitmap mBitmap1;
     42         private final Paint mClearPaint;
     43         private final Path mPath;
     44 
     45         public PathsView(Context c) {
     46             super(c);
     47 
     48             mBitmap1 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset2);
     49 
     50             mClearPaint = new Paint();
     51             mClearPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
     52             mClearPaint.setAntiAlias(true);
     53             mClearPaint.setColor(0x0000ff00);
     54             mClearPaint.setStrokeWidth(15.0f);
     55             mClearPaint.setStyle(Paint.Style.FILL);
     56             mClearPaint.setTextSize(32.0f);
     57 
     58             mPath = new Path();
     59             mPath.moveTo(0.0f, 0.0f);
     60             mPath.cubicTo(0.0f, 0.0f, 100.0f, 150.0f, 100.0f, 200.0f);
     61             mPath.cubicTo(100.0f, 200.0f, 50.0f, 300.0f, -80.0f, 200.0f);
     62             mPath.cubicTo(-80.0f, 200.0f, 100.0f, 200.0f, 200.0f, 0.0f);
     63 
     64         }
     65 
     66         @Override
     67         protected void onDraw(Canvas canvas) {
     68             super.onDraw(canvas);
     69 
     70             canvas.save(); {
     71                 canvas.drawARGB(255, 255, 255, 255);
     72                 canvas.drawRect(100.0f, 100.0f, 200.0f, 200.0f, mClearPaint);
     73                 canvas.drawCircle(150.0f, 400.0f, 100.0f, mClearPaint);
     74                 canvas.drawBitmap(mBitmap1, 400.0f, 100.0f, mClearPaint);
     75                 canvas.save(); {
     76                     canvas.translate(400.0f, 400.0f);
     77                     canvas.drawPath(mPath, mClearPaint);
     78                 }
     79                 canvas.restore();
     80                 canvas.drawText("OpenGLRenderer", 50.0f, 50.0f, mClearPaint);
     81                 mClearPaint.setColor(0xff000000);
     82                 canvas.drawRect(800.0f, 100.0f, 900.0f, 200.0f, mClearPaint);
     83                 mClearPaint.setColor(0x0000ff00);
     84             }
     85             canvas.restore();
     86         }
     87     }
     88 }
     89