OpenGLApplication.h

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#include "OpenGLWindow.h"
class FrameCounter;

class OpenGLApplication {
public:
  virtual ~OpenGLApplication( void );
  // creation class, must be provided by the base class
  static OpenGLApplication  * create( const char  * class_name );

protected:
  // the constructor is protected, thus only derived class can create instances
  OpenGLApplication( const char  * className );

  // functions that must be provided by the derived class
  virtual bool  initialize() = 0;                           // Perform All Initialization
  virtual void  deinitialize() = 0;                         // Perform All DeInitialization
  virtual void  update( DWORD milliseconds ) = 0;       // Perform Motion Updates
  virtual void  draw() = 0;                                  // Perform All Scene Drawing

  // methods provided by base class
  OpenGLWindow * getWindow( void );
  void fastMode(); // disables some OpenGL features
  void fullMode(); // enables all OpenGL features
  void  terminate();                                 // Terminate The Application

  void  toggleFullscreen();                                 // Toggle Fullscreen / Windowed Mode
  void  resizeDraw( bool enable );   // Enable Redraw During Window Resize

  void setFrameLimit( unsigned int framesPerSecond );// sets up a frame limit
  unsigned int getFrameLimit( );

  // get the objects provided by this class
  FrameCounter  * getFrameCounter();

private:
  // Windows Main-Function and our mainfunction, Window procedure and our messagehandler
  friend int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow );
  int main( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow );
  friend LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
  LRESULT   message(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);

  void drawTest();

  // constants
  static const UINT WM_TOGGLEFULLSCREEN = ( WM_USER + 1 );      // application define message for toggling

  // variables
  OpenGLWindow m_window;
  const char  * m_className;
  bool m_isProgramLooping;
  bool m_createFullScreen;
  bool m_isVisible;
  bool m_resizeDraw;

  int m_frameLimit; // number of frames that should be drawed per second
  float frameTime;// time for a frame in milliseconds
  bool useFrameLimit;// soll frame limit benutzt werden?
  FrameCounter *fc; // frame counter, used for accurate timing
};