forked from bartvdbraak/blender
98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
#ifndef __FTLibrary__
|
|
#define __FTLibrary__
|
|
|
|
#include <ft2build.h>
|
|
#include FT_FREETYPE_H
|
|
//#include FT_CACHE_H
|
|
|
|
#include "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 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.
|
|
*/
|
|
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__
|