include/opencascade/Font_FTLibrary.hxx

0001 // Created on: 2013-01-28
0002 // Created by: Kirill GAVRILOV
0003 // Copyright (c) 2013-2014 OPEN CASCADE SAS
0004 //
0005 // This file is part of Open CASCADE Technology software library.
0006 //
0007 // This library is free software; you can redistribute it and/or modify it under
0008 // the terms of the GNU Lesser General Public License version 2.1 as published
0009 // by the Free Software Foundation, with special exception defined in the file
0010 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0011 // distribution for complete text of the license and disclaimer of any warranty.
0012 //
0013 // Alternatively, this file may be used under the terms of Open CASCADE
0014 // commercial license or contractual agreement.
0015
0016 #ifndef Font_FTLibrary_HeaderFile
0017 #define Font_FTLibrary_HeaderFile
0018
0019 #include <Standard_Type.hxx>
0020 #include <Standard_Transient.hxx>
0021
0022 // forward declarations to avoid including of FreeType headers
0023 typedef struct FT_LibraryRec_* FT_Library;
0024
0025 //! Wrapper over FT_Library. Provides access to FreeType library.
0026 class Font_FTLibrary : public Standard_Transient
0027 {
0028
0029 public:
0030   //! Initialize new FT_Library instance.
0031   Standard_EXPORT Font_FTLibrary();
0032
0033   //! Release FT_Library instance.
0034   Standard_EXPORT ~Font_FTLibrary() override;
0035
0036   //! This method should always return true.
0037   //! @return true if FT_Library instance is valid.
0038   bool IsValid() const { return myFTLib != nullptr; }
0039
0040   //! Access FT_Library instance.
0041   FT_Library Instance() const { return myFTLib; }
0042
0043 private:
0044   FT_Library myFTLib;
0045
0046 private:
0047   Font_FTLibrary(const Font_FTLibrary&)            = delete;
0048   Font_FTLibrary& operator=(const Font_FTLibrary&) = delete;
0049
0050 public:
0051   DEFINE_STANDARD_RTTIEXT(Font_FTLibrary, Standard_Transient) // Type definition
0052 };
0053
0054 #endif // _Font_FTLibrary_H__