rem: void WMSetRulerOffset(WMRuler * rPtr, int pixels)
add: WMSetRulerOffset(WMRuler * rPtr, int pixels)
context: void WMSetRulerOffset(WMRuler * rPtr, int pixels){    if (!rPtr || pixels < 0 || pixels + MIN_DOC_WIDTH >= rPtr->view->size.width)    return;    rPtr->offset = pixels;    /*rulerDidResize(rPtr, rPtr->view); */}