src/SDLWrap_EventHandler.hpp

   1 #ifndef _SDLWRAP_EVENTHANDLER_H_
   2 #define _SDLWRAP_EVENTHANDLER_H_
   3
   4 #include "SDL/SDL.h"
   5
   6 namespace SDLWrap {
   7
   8 /* This class takes care of all events, reading them, handling them etc. The plan is to have the game singleton inherit
   9  * from this class so all actual event handling is taken care by the derived class. This class simply acts as a wrapper
  10  * around the SDL_PollEvent() function and all the On* functions that detect and handle the individual unique events.
  11  * Since I don't know what they'll be doing yet, the plan is to declare all On* functions that I need as pure virtual
  12  * functions. This class won't be using any of them, it's all up to the singleton.
  13  */
  14 class EventHandler
  15 {
  16     public:
  17         /* Empty constructor and destructor... */
  18         EventHandler();
  19         ~EventHandler();
  20
  21         /* This function is responsible for handling all calls to the On*() functions. Since they're all virtual for
  22          * now, it's not like it's gonna be doing much, but once the singleton overrides the pure virtual functions
  23          * then it can take control of any through this function. Well, more like this function will call the On*()
  24          * functions, which are all defined by the singleton.
  25          */
  26         void HandleEvent();
  27
  28         /* Just a cheap wrapper around SDL_PollEvent. Just doing it to not type SDL_ :P */
  29         bool PollEvent();
  30
  31         /* And... the virtuals :P Pretty much self explanatory as well. */
  32         /* Actually wait, seems I misunderstood pure virtual and virtual functions. If it's just simply virtual, like
  33          * what I'm doing here with my On*() functions, then they may be overridden, but pure virtual functions MUST be
  34          * overridden, which is not what I'm looking for...
  35          */
  36         virtual void OnQuit() {};
  37
  38     protected:
  39         SDL_Event *Event;
  40 };
  41
  42 };
  43
  44 #endif