kc3-lang/ftgl/include/FTLibrary.h

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• Hash : ba82a01b
  Author :
  Date : 2002-11-27T06:20:15
  

  Tidied up some float declarations

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• include/FTLibrary.h

• #ifndef     __FTLibrary__
  #define     __FTLibrary__
  
  #include "FTGL.h"
  
  #include <ft2build.h>
  #include FT_FREETYPE_H
  //#include FT_CACHE_H
  
  
  /**
   * FTLibrary class is the global accessor for the Freetype library.
   *
   * This class encapsulates the Freetype Library. This is a singleton class
   * and ensures that only one FT_Library is in existence at any one time.
   * All constructors are private therefore clients cannot create or
   * instantiate this class themselves and must access it's methods via the
   * static <code>FTLibrary::Instance()</code> function.
   *
   * Just because this class returns a valid <code>FTLibrary</code> object
   * doesn't mean that the Freetype Library has been successfully initialised.
   * Clients should check for errors. You can initialse the library AND check
   * for errors using the following code...
   * <code>err = FTLibrary::Instance().Error();</code>
   *
   * @see "Freetype 2 Documentation - 2.0.4"
   *
   */
  class FTGL_EXPORT FTLibrary
  {
      public:
          /**
           * Global acces point to the single FTLibrary object.
           * 
           * @return  The global <code>FTLibrary</code> object.
           */
          static FTLibrary& Instance();
  
          /**
           * Gets a pointer to the native Freetype library.
           * 
           * @return A handle to a FreeType library instance. 
           */
          FT_Library* GetLibrary() const { return lib;}
          
          /**
           * Queries the library for errors.
           *
           * @return  The current error code.
           */
          virtual FT_Error Error() const { return err;}
          
          /**
           * Destructor
           *
           * Disposes of the Freetype library
           */
          virtual  ~FTLibrary();
          
      private:
          /**
           * Default constructors.
           *
           * Made private to stop clients creating there own FTLibrary
           * objects.
           */
          FTLibrary();
          FTLibrary( const FT_Library&){}
          FTLibrary&  operator=( const FT_Library&) { return *this; }
          
          /**
           * Initialises the Freetype library
           *
           * Even though this function indicates success via the return value,
           * clients can't see this so must check the error codes. This function
           * is only ever called by the default c_stor
           *
           * @return  <code>true</code> if the Freetype library was
           *          successfully initialised, <code>false</code>
           *          otherwise.
           */
          bool Init();
          
          /**
           * Freetype library handle.
           */
          FT_Library* lib;
  //      FTC_Manager* manager;
  
          /**
           * Freetype library version.
           */
          int major, minor, patch;
  
          /**
           * Current error code. Zero means no error.
           */
          FT_Error err;
          
  };
  
  #endif  //  __FTLibrary__
  

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