restart_search:

	/* When we find the window to delete, we need to restart the search

	 * as deleting this window could cascade in deleting (many) others

	 * anywhere in the z-array */

	FOR_ALL_WINDOWS(wz) {

		Window *w = *wz;

		if (w->window_class != WC_MAIN_WINDOW &&

				w->window_class != WC_SELECT_GAME &&

				w->window_class != WC_MAIN_TOOLBAR &&

				w->window_class != WC_STATUS_BAR &&

				w->window_class != WC_TOOLBAR_MENU &&

				w->window_class != WC_TOOLTIPS &&

				(w->flags4 & WF_STICKY) == 0) { // do not delete windows which are 'pinned'

			DeleteWindow(w);

			goto restart_search;

		}

	}

}

/* It is possible that a stickied window gets to a position where the

 * 'close' button is outside the gaming area. You cannot close it then; except

 * with this function. It closes all windows calling the standard function,

 * then, does a little hacked loop of closing all stickied windows. Note

 * that standard windows (status bar, etc.) are not stickied, so these aren't affected */

void DeleteAllNonVitalWindows(void)

{

	Window* const *wz;

	/* Delete every window except for stickied ones, then sticky ones as well */

	DeleteNonVitalWindows();

restart_search:

	/* When we find the window to delete, we need to restart the search

	 * as deleting this window could cascade in deleting (many) others

	 * anywhere in the z-array */

	FOR_ALL_WINDOWS(wz) {

		if ((*wz)->flags4 & WF_STICKY) {

			DeleteWindow(*wz);

			goto restart_search;

		}

	}

}

/* Delete all always on-top windows to get an empty screen */

void HideVitalWindows(void)

{

	DeleteWindowById(WC_MAIN_TOOLBAR, 0);

	DeleteWindowById(WC_STATUS_BAR, 0);

}

int PositionMainToolbar(Window *w)

{

	DEBUG(misc, 5, "Repositioning Main Toolbar...");

	if (w == NULL || w->window_class != WC_MAIN_TOOLBAR) {

		w = FindWindowById(WC_MAIN_TOOLBAR, 0);

	}

	switch (_patches.toolbar_pos) {

		case 1:  w->left = (_screen.width - w->width) / 2; break;

		case 2:  w->left = _screen.width - w->width; break;

		default: w->left = 0;

	}

	SetDirtyBlocks(0, 0, _screen.width, w->height); // invalidate the whole top part

	return w->left;

}

void RelocateAllWindows(int neww, int newh)

{

	Window* const *wz;

	FOR_ALL_WINDOWS(wz) {

		Window *w = *wz;

		int left, top;

		if (w->window_class == WC_MAIN_WINDOW) {

			ViewPort *vp = w->viewport;

			vp->width = w->width = neww;

			vp->height = w->height = newh;

			vp->virtual_width = neww << vp->zoom;

			vp->virtual_height = newh << vp->zoom;

			continue; // don't modify top,left

		}

		/* XXX - this probably needs something more sane. For example specying

		 * in a 'backup'-desc that the window should always be centred. */

		switch (w->window_class) {

			case WC_MAIN_TOOLBAR:

				top = w->top;

				left = PositionMainToolbar(w); // changes toolbar orientation

				break;

			case WC_SELECT_GAME:

			case WC_GAME_OPTIONS: