EndContainer(),

	EndContainer(),

	NWidget(NWID_HORIZONTAL),

		NWidget(WWT_PANEL, COLOUR_GREY), SetFill(1, 1), SetResize(1, 0), EndContainer(),

		NWidget(WWT_RESIZEBOX, COLOUR_GREY),

	EndContainer(),

};

class ExtraViewportWindow : public Window {

public:

	ExtraViewportWindow(const WindowDesc *desc, int window_number, TileIndex tile) : Window()

	{

		this->InitNested(desc, window_number);

		NWidgetViewport *nvp = this->GetWidget<NWidgetViewport>(EVW_VIEWPORT);

		nvp->InitializeViewport(this, 0, ZOOM_LVL_NORMAL);

		this->DisableWidget(EVW_ZOOMIN);

		Point pt;

		if (tile == INVALID_TILE) {

			/* the main window with the main view */

			const Window *w = FindWindowById(WC_MAIN_WINDOW, 0);

			/* center on same place as main window (zoom is maximum, no adjustment needed) */

			pt.y = w->viewport->scrollpos_y + w->viewport->virtual_height / 2;

		} else {

			pt = RemapCoords(TileX(tile) * TILE_SIZE + TILE_SIZE / 2, TileY(tile) * TILE_SIZE + TILE_SIZE / 2, TileHeight(tile));

		}

		this->viewport->dest_scrollpos_x = this->viewport->scrollpos_x;

		this->viewport->dest_scrollpos_y = this->viewport->scrollpos_y;

	}

	virtual void SetStringParameters(int widget) const

	{

		switch (widget) {

			case EVW_CAPTION:

				/* set the number in the title bar */

				SetDParam(0, this->window_number + 1);

				break;

		}

	}

	virtual void OnPaint()

	{

		this->DrawWidgets();

	}

	virtual void OnClick(Point pt, int widget)

	{

		switch (widget) {

			case EVW_ZOOMIN: DoZoomInOutWindow(ZOOM_IN,  this); break;

			case EVW_ZOOMOUT: DoZoomInOutWindow(ZOOM_OUT, this); break;