public void AddBlock( AbstractBlock newBlock, Point pos )
{
if ( newBlock == null || pos == null )
return;
if ( newBlock.Parent != null )
newBlock.RemoveParent();
//newBlock.Margin = new Thickness( pos.X, pos.Y, 0, 0 );
if ( IsExist( newBlock ) )
Board.Children.Remove( newBlock );
Board.Children.Add( newBlock );
Canvas.SetLeft(newBlock, pos.X);
Canvas.SetTop(newBlock, pos.Y);
Canvas.SetRight(newBlock, pos.X + newBlock.Width);
Canvas.SetBottom(newBlock, pos.Y + newBlock.Height);
}
