00001 /********************************************************************** 00002 * $Id: ShortCircuitedGeometryVisitor.h 2556 2009-06-06 22:22:28Z strk $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2001-2002 Vivid Solutions Inc. 00008 * Copyright (C) 2006 Refractions Research Inc. 00009 * 00010 * This is free software; you can redistribute and/or modify it under 00011 * the terms of the GNU Lesser General Public Licence as published 00012 * by the Free Software Foundation. 00013 * See the COPYING file for more information. 00014 * 00015 **********************************************************************/ 00016 00017 #ifndef GEOS_GEOM_UTIL_SHORTCIRCUITEDGEOMETRYVISITOR_H 00018 #define GEOS_GEOM_UTIL_SHORTCIRCUITEDGEOMETRYVISITOR_H 00019 00020 #include <geos/export.h> 00021 00022 // Forward declarations 00023 namespace geos { 00024 namespace geom { 00025 class Geometry; 00026 } 00027 } 00028 00029 00030 namespace geos { 00031 namespace geom { // geos.geom 00032 namespace util { // geos.geom.util 00033 00040 class GEOS_DLL ShortCircuitedGeometryVisitor 00041 { 00042 00043 private: 00044 00045 bool done; 00046 00047 protected: 00048 00049 virtual void visit(const Geometry &element)=0; 00050 virtual bool isDone()=0; 00051 00052 public: 00053 00054 ShortCircuitedGeometryVisitor() 00055 : 00056 done(false) 00057 {} 00058 00059 void applyTo(const Geometry &geom); 00060 00061 virtual ~ShortCircuitedGeometryVisitor() {} 00062 00063 }; 00064 00065 } // namespace geos.geom.util 00066 } // namespace geos.geom 00067 } // namespace geos 00068 00069 //#ifdef GEOS_INLINE 00070 //# include "geos/geom/util/ShortCircuitedGeometryVisitor.inl" 00071 //#endif 00072 00073 #endif 00074 00075 /********************************************************************** 00076 * $Log$ 00077 * Revision 1.3 2006/06/08 11:20:24 strk 00078 * Added missing virtual destructor to abstract classes. 00079 * 00080 * Revision 1.2 2006/03/24 09:52:41 strk 00081 * USE_INLINE => GEOS_INLINE 00082 * 00083 * Revision 1.1 2006/03/09 16:46:49 strk 00084 * geos::geom namespace definition, first pass at headers split 00085 * 00086 **********************************************************************/