class CGRDrawn implements ColorGridRenderer
{
  private boolean border, selection;
  private int srow, scol;
  private float x, y, dim;
  private ColorGrid cg;
  private color bcolor, bcolor_fade;
  
  CGRDrawn(ColorGrid grid, float x, float y, float dim, color borderColor)
  {
    cg = grid;
    this.x = x;
    this.y = y;
    this.dim = dim;
    selection = false;
    border = true;
    srow = scol = 0;
    bcolor = borderColor;
    bcolor_fade = color(red(borderColor), green(borderColor), blue(borderColor), 160);
  }
  
  void showBorder(boolean show)
  {
    border = show;
  }
  
  void showSelection(boolean show)
  {
    selection = show;
  }
  
  void setSelection(int row, int col)
  {
    srow = row;
    scol = col;
  }
  
  ColorGrid getColorGrid()
  {
    return cg;
  }
  
  void setColorGrid(ColorGrid grid)
  {
    cg = grid;
  }
  
  void draw()
  {
    stroke(0);
    strokeWeight(1);
    for(int i = 0; i < cg.rows(); i++)
    {
      for(int j = 0; j < cg.cols(); j++)
      {
        fill( cg.get(i,j) );
        rect(x + j*dim, y + i*dim, dim, dim);
      }
    }
    
    noFill();
    
    if ( border )
    {
      if ( selection )
      {
        stroke(bcolor);
      }
      else 
      {
        stroke(bcolor_fade);
      }
      strokeWeight(3);
      rect(x - 2, y - 2, cg.cols() * dim + 4, cg.rows() * dim + 4);
    }
    
    strokeWeight(1);
    
    if ( selection )
    {
      // TODO: animate
      stroke(255);      
    }
    else
    {
      // solid
      stroke(255);
    } 
    
    rect(x + scol*dim, y + srow*dim, dim, dim); 
  }
}