vtkPanel possible bug

[Igor Fridman]

While browsing through vtkPanel, i believe there's a
small bug in the function Render().  If Render() is
called and there are no visible actors in the
renderer, the function returns without setting the
rendering variable back to false.  This prevents
further rendering...

see code:

public synchronized void Render() 
  {
    if (!rendering)
      {
      rendering = true;
//NEED TO ADD 'rendering = false' to 'if' statement
     if (ren.VisibleActorCount() == 0) return;
      if (rw != null)
	{
	if (windowset == 0)
	  { 
	  // set the window id and the active camera
	  rw.SetWindowInfo(this.getWindowInfo());
	  cam = ren.GetActiveCamera();
	  ren.AddLight(lgt);
	  lgt.SetPosition(cam.GetPosition());
	  lgt.SetFocalPoint(cam.GetFocalPoint());
	  windowset = 1;
	  }
	rw.Render();
	rendering = false;
	}
      }
  }

===
==================================================
Igor Fridman

Naval Research Laboratory
Vacuum Electronics Branch Code 6841
4555 Overlook Ave. S.W., Washington, DC 20375, USA
==================================================
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