*/

	void DrawSignalSprite(const Rect &r, int widget_index, SpriteID image) const

	{

		Point offset;

		Dimension sprite_size = GetSpriteSize(image, &offset);

		Rect ir = r.Shrink(WidgetDimensions::scaled.imgbtn);

		int y = ir.top - sig_sprite_bottom_offset +

				(ir.Height() + sig_sprite_size.height) / 2; // aligned to bottom

		DrawSprite(image, PAL_NONE,

				x + this->IsWidgetLowered(widget_index),

				y + this->IsWidgetLowered(widget_index));