if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth;
if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight;
if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth;
if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth;
if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight;
if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth;