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      1 /*
      2  * Copyright (C) 2011 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.animation.ObjectAnimator;
     20 import android.app.Activity;
     21 import android.content.Context;
     22 import android.graphics.Canvas;
     23 import android.graphics.Color;
     24 import android.graphics.Paint;
     25 import android.graphics.drawable.ColorDrawable;
     26 import android.os.Bundle;
     27 import android.view.View;
     28 import android.widget.FrameLayout;
     29 import android.widget.LinearLayout;
     30 import android.widget.ProgressBar;
     31 import android.widget.SeekBar;
     32 
     33 @SuppressWarnings({"UnusedDeclaration"})
     34 public class PointsActivity extends Activity {
     35 
     36     float mSeekValue = .5f;
     37 
     38     @Override
     39     protected void onCreate(Bundle savedInstanceState) {
     40         super.onCreate(savedInstanceState);
     41         getWindow().setBackgroundDrawable(new ColorDrawable(0xff000000));
     42         SeekBar slider = new SeekBar(this);
     43         LinearLayout container = new LinearLayout(this);
     44         container.setOrientation(LinearLayout.VERTICAL);
     45         setContentView(container);
     46 
     47         container.addView(slider);
     48         slider.setMax(100);
     49         slider.setProgress(50);
     50         FrameLayout frame = new FrameLayout(this);
     51         final RenderingView gpuView = new RenderingView(this, Color.GREEN);
     52         frame.addView(gpuView);
     53         final RenderingView swView = new RenderingView(this, Color.RED);
     54         swView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
     55         frame.addView(swView);
     56         container.addView(frame);
     57 
     58         slider.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
     59             @Override
     60             public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
     61                 mSeekValue = (float)progress / 100.0f;
     62                 float gpuAlpha = Math.min(2.0f * mSeekValue, 1f);
     63                 gpuView.setAlpha(gpuAlpha);
     64                 float swAlpha = Math.min((1 - mSeekValue) * 2.0f, 1f);
     65                 System.out.println("(gpuAlpha, swAlpha = " + gpuAlpha + ", " + swAlpha);
     66                 swView.setAlpha(swAlpha);
     67             }
     68 
     69             @Override
     70             public void onStartTrackingTouch(SeekBar seekBar) {
     71             }
     72 
     73             @Override
     74             public void onStopTrackingTouch(SeekBar seekBar) {
     75             }
     76         });
     77     }
     78 
     79     @Override
     80     protected void onDestroy() {
     81         super.onDestroy();
     82     }
     83 
     84     public static class RenderingView extends View {
     85 
     86         private int mColor;
     87 
     88         public RenderingView(Context c, int color) {
     89             super(c);
     90             mColor = color;
     91         }
     92 
     93         private void drawPoints(Canvas canvas, Paint p, float xOffset, float yOffset) {
     94         }
     95 
     96         @Override
     97         protected void onDraw(Canvas canvas) {
     98             super.onDraw(canvas);
     99             Paint p = new Paint();
    100             p.setColor(mColor);
    101 
    102             float yOffset = 0;
    103             for (int i = 0; i < 2; ++i) {
    104                 float xOffset = 0;
    105 
    106                 p.setStrokeWidth(0f);
    107                 p.setStrokeCap(Paint.Cap.SQUARE);
    108                 canvas.drawPoint(100 + xOffset, 100 + yOffset, p);
    109                 xOffset += 5;
    110 
    111                 p.setStrokeWidth(1f);
    112                 canvas.drawPoint(100 + xOffset, 100 + yOffset, p);
    113                 xOffset += 15;
    114 
    115                 p.setStrokeWidth(20);
    116                 canvas.drawPoint(100 + xOffset, 100 + yOffset, p);
    117                 xOffset += 30;
    118 
    119                 p.setStrokeCap(Paint.Cap.ROUND);
    120                 canvas.drawPoint(100 + xOffset, 100 + yOffset, p);
    121 
    122                 p.setAntiAlias(true);
    123                 yOffset += 30;
    124             }
    125 
    126         }
    127     }
    128 }
    129