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00001 // -*- C++ -*- 00002 /* GG is a GUI for SDL and OpenGL. 00003 Copyright (C) 2007 T. Zachary Laine 00004 00005 This library is free software; you can redistribute it and/or 00006 modify it under the terms of the GNU Lesser General Public License 00007 as published by the Free Software Foundation; either version 2.1 00008 of the License, or (at your option) any later version. 00009 00010 This library is distributed in the hope that it will be useful, 00011 but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 Lesser General Public License for more details. 00014 00015 You should have received a copy of the GNU Lesser General Public 00016 License along with this library; if not, write to the Free 00017 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 00018 02111-1307 USA 00019 00020 If you do not wish to comply with the terms of the LGPL please 00021 contact the author as other terms are available for a fee. 00022 00023 Zach Laine 00024 whatwasthataddress@gmail.com */ 00025 00029 #ifndef _GG_Cursor_h_ 00030 #define _GG_Cursor_h_ 00031 00032 #include <GG/PtRect.h> 00033 00034 #include <boost/shared_ptr.hpp> 00035 00036 00037 namespace GG { 00038 00039 class Texture; 00040 00046 class GG_API Cursor 00047 { 00048 public: 00050 Cursor(); 00051 virtual ~Cursor(); 00052 00053 00055 00057 virtual void Render(const Pt& pt) = 0; 00059 00060 private: 00061 friend class boost::serialization::access; 00062 template <class Archive> 00063 void serialize(Archive& ar, const unsigned int version); 00064 }; 00065 00071 class GG_API TextureCursor : 00072 public Cursor 00073 { 00074 public: 00076 00079 TextureCursor(const boost::shared_ptr<Texture>& texture, const Pt& hotspot = Pt()); 00081 00083 00084 const boost::shared_ptr<Texture>& GetTexture() const; 00085 00087 const Pt& Hotspot() const; 00089 00091 virtual void Render(const Pt& pt); 00093 00094 private: 00095 boost::shared_ptr<Texture> m_texture; 00096 Pt m_hotspot; 00097 00098 friend class boost::serialization::access; 00099 template <class Archive> 00100 void serialize(Archive& ar, const unsigned int version); 00101 }; 00102 00103 } // namespace GG 00104 00105 // template implementations 00106 template <class Archive> 00107 void GG::Cursor::serialize(Archive& ar, const unsigned int version) 00108 {} 00109 00110 template <class Archive> 00111 void GG::TextureCursor::serialize(Archive& ar, const unsigned int version) 00112 { 00113 ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(Cursor) 00114 & m_texture 00115 & m_hotspot; 00116 } 00117 00118 #endif // _GG_Cursor_h_