rem: if (sPtr->view->flags.mapped && sPtr->view->flags.realized)
context: WMSetSplitViewVertical(WMSplitView *sPtr, Bool flag){    int vertical;        CHECK_CLASS(sPtr, WC_SplitView);    vertical = (flag) ? 1 : 0;    if (sPtr->flags.vertical == vertical)    	return;        sPtr->flags.vertical = vertical;        if (sPtr->view->flags.mapped && sPtr->view->flags.realized)    	handleViewResized(sPtr, NULL);    else    	sPtr->flags.adjustOnPaint = 1;}