code: public final Viewport setPixelSize(final int wide, final int high)
      {
          m_wide = wide;
  
          m_high = high;
  
          getElement().getStyle().setWidth(wide, Unit.PX);
  
          getElement().getStyle().setHeight(high, Unit.PX);
  
          final NFastArrayList<Scene> scenes = getChildNodes();
  
          if (null != scenes)
          {
              final int size = scenes.size();
  
              for (int i = 0; i < size; i++)
              {
                  final Scene scene = scenes.get(i);
  
                  if (null != scene)
                  {
                      scene.setPixelSize(wide, high);
                  }
              }
          }
          m_spad.setPixelSize(wide, high);
  
          return this;
      }
docs: Sets size of the {@link Viewport} in pixels
  
  @param wide
  @param high
  @return Viewpor this viewport