code: private int getResultingTargetHeight() {
  
          int height = -1;
          if ((m_targetHeight > -1) || (m_targetWidth > -1)) {
              if (m_targetHeight > -1) {
                  height = m_targetHeight;
              } else {
                  height = (int)Math.floor(((1.00 * m_orgHeight) / m_orgWidth) * m_targetWidth);
              }
          }
          return height;
      }
docs: Returns the resulting target height if set, otherwise '-1'.<p>
  
  @return the height