protected override Types.Rectangle CalculateBounds( Renderers.Renderer renderer )
{
double width, height, baselineFromTop, x, y;
renderer.MeasureText( this, out width, out height, out baselineFromTop );
switch( Alignment )
{
case Primitives.Text.Position.TopLeft:
case Primitives.Text.Position.CenterLeft:
case Primitives.Text.Position.BaseLeft:
case Primitives.Text.Position.BottomLeft:
x = _point.X;
break;
case Primitives.Text.Position.TopCenter:
case Primitives.Text.Position.Center:
case Primitives.Text.Position.BaseCenter:
case Primitives.Text.Position.BottomCenter:
x = _point.X - width / 2 - 1;
break;
case Primitives.Text.Position.TopRight:
case Primitives.Text.Position.CenterRight:
case Primitives.Text.Position.BaseRight:
case Primitives.Text.Position.BottomRight:
x = _point.X - width;
break;
default:
throw new InvalidOperationException();
}
switch( Alignment )
{
case Primitives.Text.Position.TopLeft:
case Primitives.Text.Position.TopCenter:
case Primitives.Text.Position.TopRight:
y = _point.Y;
break;
case Primitives.Text.Position.CenterLeft:
case Primitives.Text.Position.Center:
case Primitives.Text.Position.CenterRight:
y = _point.Y - height / 2;
break;
case Primitives.Text.Position.BaseLeft:
case Primitives.Text.Position.BaseCenter:
case Primitives.Text.Position.BaseRight:
y = _point.Y - baselineFromTop;
break;
case Primitives.Text.Position.BottomLeft:
case Primitives.Text.Position.BottomCenter:
case Primitives.Text.Position.BottomRight:
y = _point.Y - height;
break;
default:
throw new InvalidOperationException();
}
return new BinaryComponents.VectorGraphics.Types.Rectangle( x, y, width, height );
}