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App.h

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/*************** <auto-copyright.pl BEGIN do not edit this line> **************
 *
 * VR Juggler is (C) Copyright 1998-2003 by Iowa State University
 *
 * Original Authors:
 *   Allen Bierbaum, Christopher Just,
 *   Patrick Hartling, Kevin Meinert,
 *   Carolina Cruz-Neira, Albert Baker
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * -----------------------------------------------------------------
 * File:          $RCSfile: App.h,v $
 * Date modified: $Date: 2003/12/08 14:28:20 $
 * Version:       $Revision: 1.47 $
 * -----------------------------------------------------------------
 *
 *************** <auto-copyright.pl END do not edit this line> ***************/

#ifndef _VRJ_APP_H_
#define _VRJ_APP_H_

#include <vrj/vrjConfig.h>

#include <boost/concept_check.hpp>

#include <vpr/Util/Assert.h>
#include <vrj/Util/Debug.h>
#include <jccl/RTRC/ConfigElementHandler.h>
#include <vrj/Sound/SoundManagerFactory.h>

#include <gadget/Type/PositionProxy.h>
#include <gadget/Type/Position/PositionUnitConversion.h>

namespace vrj
{

class DrawManager;
class Kernel;

class VJ_CLASS_API App : public jccl::ConfigElementHandler
{
public:
   App(Kernel* kern);

   App();

   virtual ~App()
   {
      /* Do nothing. */ ;
   }

public:

   virtual void init()
   {;}

   virtual void apiInit()
   {;}

   virtual void exit()
   {;}

   virtual void preFrame()
   {;}

   virtual void latePreFrame()
   {;}

   virtual void intraFrame()
   {;}

   virtual void postFrame()
   {;}

   virtual void reset()
   {;}

   bool haveFocus()
   {
      return mHaveFocus;
   }

   virtual void focusChanged()
   {;}

   void setFocus(bool newState)
   {
      if(newState != mHaveFocus)
      {
         mHaveFocus = newState;
         this->focusChanged();
      }
   }

   virtual float getDrawScaleFactor()
   {
      return gadget::PositionUnitConversion::ConvertToFeet;
   }


public:  // --- Default config handlers: (inherited from jccl::ConfigElementHandler) --- //
   virtual bool configCanHandle(jccl::ConfigElementPtr element)
   {
      boost::ignore_unused_variable_warning(element);
      return false;
   }

   virtual bool depSatisfied()
   {
      return true;
   }

protected:
   virtual bool configAdd(jccl::ConfigElementPtr element)
   {
      boost::ignore_unused_variable_warning(element);
      vprASSERT(false);
      return false;
   }

   virtual bool configRemove(jccl::ConfigElementPtr element)
   {
      boost::ignore_unused_variable_warning(element);
      vprASSERT(false);
      return false;
   }

public:
   Kernel* mKernel;     // The library kernel (here for convienence)
   bool    mHaveFocus;

public:  // --- Factory functions --- //
   virtual DrawManager* getDrawManager() = 0;

   virtual SoundManager* getSoundManager()
   {
      return &SoundManagerFactory::get();
   }
};

}

#endif

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