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Diffstat (limited to 'source/blender/freestyle/intern/system/BaseObject.h')
-rw-r--r-- | source/blender/freestyle/intern/system/BaseObject.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/system/BaseObject.h b/source/blender/freestyle/intern/system/BaseObject.h new file mode 100644 index 00000000000..1fe2770c313 --- /dev/null +++ b/source/blender/freestyle/intern/system/BaseObject.h @@ -0,0 +1,77 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2010 Blender Foundation. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#ifndef __FREESTYLE_BASE_OBJECT_H__ +#define __FREESTYLE_BASE_OBJECT_H__ + +/** \file blender/freestyle/intern/system/BaseObject.h + * \ingroup freestyle + * \brief Base Class for most shared objects (Node, Rep). Defines the addRef, release system. + * \brief Inspired by COM IUnknown system. + * \author Stephane Grabli + * \date 06/02/2002 + */ + +#include "FreestyleConfig.h" + +class LIB_SYSTEM_EXPORT BaseObject +{ +public: + inline BaseObject() + { + _ref_counter = 0; + } + + virtual ~BaseObject() {} + + /*! At least makes a release on this. + * The BaseObject::destroy method must be explicitely called at the end of any overloaded destroy + */ + virtual int destroy() + { + return release(); + } + + /*! Increments the reference counter */ + inline int addRef() + { + return ++_ref_counter; + } + + /*! Decrements the reference counter */ + inline int release() + { + if (_ref_counter) + _ref_counter--; + return _ref_counter; + } + +private: + unsigned _ref_counter; +}; + +#endif // __FREESTYLE_BASE_OBJECT_H__ |