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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.os.Bundle;
     24 import android.view.View;
     25 
     26 @SuppressWarnings({"UnusedDeclaration"})
     27 public class PosTextActivity extends Activity {
     28     @Override
     29     protected void onCreate(Bundle savedInstanceState) {
     30         super.onCreate(savedInstanceState);
     31 
     32         setContentView(new CustomTextView(this));
     33     }
     34 
     35     static class CustomTextView extends View {
     36         private final Paint mLargePaint;
     37         private final String mText;
     38         private final float[] mPos;
     39 
     40         CustomTextView(Context c) {
     41             super(c);
     42 
     43             mText = c.getResources().getString(R.string.complex_string);
     44             mPos = new float[mText.length() * 2];
     45             for (int i = 0; i < mPos.length; i += 2) {
     46                 mPos[i] = i * 30.0f;
     47                 mPos[i + 1] = i * 10.0f;
     48             }
     49 
     50             mLargePaint = new Paint();
     51             mLargePaint.setAntiAlias(true);
     52             mLargePaint.setTextSize(36.0f);
     53         }
     54 
     55         @Override
     56         protected void onDraw(Canvas canvas) {
     57             super.onDraw(canvas);
     58             canvas.drawRGB(255, 255, 255);
     59 
     60             canvas.save();
     61 
     62             canvas.drawLine(100.0f, 0.0f, 100.0f, getHeight(), mLargePaint);
     63 
     64             canvas.translate(100.0f, 100.0f);
     65             mLargePaint.setTextAlign(Paint.Align.LEFT);
     66             canvas.drawPosText(mText, mPos, mLargePaint);
     67 
     68             canvas.translate(0.0f, 50.0f);
     69             mLargePaint.setTextAlign(Paint.Align.CENTER);
     70             canvas.drawPosText(mText, mPos, mLargePaint);
     71 
     72             canvas.translate(0.0f, 50.0f);
     73             mLargePaint.setTextAlign(Paint.Align.RIGHT);
     74             canvas.drawPosText(mText, mPos, mLargePaint);
     75 
     76             canvas.restore();
     77         }
     78     }
     79 }
     80