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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.Canvas;
     22 import android.graphics.Paint;
     23 import android.graphics.Path;
     24 import android.graphics.RectF;
     25 import android.os.Bundle;
     26 import android.view.View;
     27 
     28 @SuppressWarnings({"UnusedDeclaration"})
     29 public class ScaledPathsActivity extends Activity {
     30     @Override
     31     protected void onCreate(Bundle savedInstanceState) {
     32         super.onCreate(savedInstanceState);
     33         final PathsView view = new PathsView(this);
     34         setContentView(view);
     35     }
     36 
     37     public static class PathsView extends View {
     38         private final Paint mPathPaint;
     39         private final Path mPath;
     40         private final RectF mPathBounds = new RectF();
     41 
     42         public PathsView(Context c) {
     43             super(c);
     44 
     45             mPathPaint = new Paint();
     46             mPathPaint.setAntiAlias(true);
     47             mPathPaint.setColor(0xff0000ff);
     48             mPathPaint.setStrokeWidth(5.0f);
     49             mPathPaint.setStyle(Paint.Style.FILL);
     50 
     51             mPath = new Path();
     52             mPath.moveTo(0.0f, 0.0f);
     53             mPath.cubicTo(0.0f, 0.0f, 100.0f, 150.0f, 100.0f, 200.0f);
     54             mPath.cubicTo(100.0f, 200.0f, 50.0f, 300.0f, -80.0f, 200.0f);
     55             mPath.cubicTo(-80.0f, 200.0f, 100.0f, 200.0f, 200.0f, 0.0f);
     56 
     57             mPath.computeBounds(mPathBounds, true);
     58         }
     59 
     60         @Override
     61         protected void onDraw(Canvas canvas) {
     62             super.onDraw(canvas);
     63             canvas.drawARGB(255, 255, 255, 255);
     64 
     65             mPathPaint.setColor(0xff0000ff);
     66             mPathPaint.setStyle(Paint.Style.FILL);
     67 
     68             canvas.save();
     69             drawPath(canvas, 1.0f, 1.0f);
     70             drawPath(canvas, 2.0f, 2.0f);
     71             drawPath(canvas, 4.0f, 4.0f);
     72             canvas.restore();
     73 
     74             mPathPaint.setColor(0xffff0000);
     75             mPathPaint.setStyle(Paint.Style.STROKE);
     76 
     77             canvas.save();
     78             drawPath(canvas, 1.0f, 1.0f);
     79             drawPath(canvas, 2.0f, 2.0f);
     80             drawPath(canvas, 4.0f, 4.0f);
     81             canvas.restore();
     82         }
     83 
     84         private void drawPath(Canvas canvas, float scaleX, float scaleY) {
     85             canvas.save();
     86             canvas.scale(scaleX, scaleY);
     87             canvas.drawPath(mPath, mPathPaint);
     88             canvas.restore();
     89             canvas.translate(mPathBounds.width() * scaleX, 0.0f);
     90         }
     91     }
     92 }
     93