Android Open Source - splott Board

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License

The source code is released under:

MIT License

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Java Source Code

package com.wordsaretoys.rise.utility;
/*from w w w  .  j  a  v a  2 s.c o  m*/
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.PorterDuff;
import android.graphics.SurfaceTexture;
import android.graphics.Typeface;
import android.view.Surface;

import com.wordsaretoys.rise.glwrapper.Texture;

/**
 * billboard helper class, encapsulates surface/texture objects
 */
public class Board {

  public Texture texture;
  public SurfaceTexture surfaceTexture;
  public Surface surface;
  public Canvas canvas;
  
  public Board(int width, int height) {
    texture = new Texture();
    surfaceTexture = new SurfaceTexture(texture.getId());
    surfaceTexture.setDefaultBufferSize(width, height);
    surface = new Surface(surfaceTexture);
    
  }
  
  public Canvas lock() {
    canvas = surface.lockCanvas(null);
    canvas.drawColor(0, PorterDuff.Mode.CLEAR);
    return canvas;
  }
  
  public void unlock() {
    surface.unlockCanvasAndPost(canvas);
    surfaceTexture.updateTexImage();
  }
  
  public void release() {
    texture.release();
    surface.release();
    surfaceTexture.release();
  }
  
  public void draw(int bcolor, String title, float size) {
    lock();
    
    int w = canvas.getWidth();
    int h = canvas.getHeight();

    canvas.drawColor(bcolor);

    Paint brush = new Paint();
    brush.setColor(0xffffffff);
    brush.setStyle(Style.STROKE);
    brush.setStrokeWidth(4f);
    
    canvas.drawRect(2, 2, w - 2, h - 2,  brush);

    brush.setStyle(Style.FILL_AND_STROKE);
    brush.setTextAlign(Paint.Align.CENTER);
    brush.setTypeface(Typeface.SANS_SERIF);
    brush.setTextSize(size);
    
    canvas.drawText(title, w >> 1, h >> 1, brush);
    
    unlock();
  }
  
}

Java Source Code List