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/*
* FTGL - OpenGL font library
*
* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __FTLibrary__
#define __FTLibrary__
#include <ft2build.h>
#include FT_FREETYPE_H
//#include FT_CACHE_H
#include "FTGL/ftgl.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"
*
*/
class FTLibrary
{
public:
/**
* Global acces point to the single FTLibrary object.
*
* @return The global <code>FTLibrary</code> object.
*/
static const FTLibrary& Instance();
/**
* Gets a pointer to the native Freetype library.
*
* @return A handle to a FreeType library instance.
*/
const FT_Library* const GetLibrary() const { return library; }
/**
* Queries the library for errors.
*
* @return The current error code.
*/
FT_Error Error() const { return err; }
/**
* Destructor
*
* Disposes of the Freetype library
*/
~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 Initialise();
/**
* Freetype library handle.
*/
FT_Library* library;
// FTC_Manager* manager;
/**
* Current error code. Zero means no error.
*/
FT_Error err;
};
#endif // __FTLibrary__
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