subsystem/TTF.h

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#ifndef SDL_SUBSYSTEM_TTF_H
#define SDL_SUBSYSTEM_TTF_H

#include <stdexcept>

#include <SDL_ttf.h>

namespace sdl {
namespace subsystem {
    using namespace std;

    struct TTF {
        static TTF& instance () {
            static TTF instance_;
            return instance_;
        };

        static bool isOpen () { return TTF_WasInit (); };

        void enableByteSwappedUNICODE () { TTF_ByteSwappedUNICODE (1); };

        void disableByteSwappedUNICODE () { TTF_ByteSwappedUNICODE (0); };

        protected:
            bool open () {
                init ();
                return isOpen ();
            };

            bool close () {
                quit ();
                return !isOpen ();
            };
           
        private:
            void init () {
                if (TTF_Init () == -1) 
                    throw runtime_error (TTF_GetError ());
            };

            void quit () { TTF_Quit (); };
        
            TTF () { init (); };

            ~TTF () { quit (); };
    }; //TTF
}; //subsystem
}; //sdl

#endif //SDL_SUBSYSTEM_TTF_H