GEOS
3.6.2
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00001 /********************************************************************** 00002 * 00003 * GEOS - Geometry Engine Open Source 00004 * http://geos.osgeo.org 00005 * 00006 * Copyright (C) 2001-2002 Vivid Solutions Inc. 00007 * Copyright (C) 2006 Refractions Research Inc. 00008 * 00009 * This is free software; you can redistribute and/or modify it under 00010 * the terms of the GNU Lesser General Public Licence as published 00011 * by the Free Software Foundation. 00012 * See the COPYING file for more information. 00013 * 00014 **********************************************************************/ 00015 00016 #ifndef GEOS_GEOM_UTIL_SHORTCIRCUITEDGEOMETRYVISITOR_H 00017 #define GEOS_GEOM_UTIL_SHORTCIRCUITEDGEOMETRYVISITOR_H 00018 00019 #include <geos/export.h> 00020 00021 // Forward declarations 00022 namespace geos { 00023 namespace geom { 00024 class Geometry; 00025 } 00026 } 00027 00028 00029 namespace geos { 00030 namespace geom { // geos.geom 00031 namespace util { // geos.geom.util 00032 00039 class GEOS_DLL ShortCircuitedGeometryVisitor 00040 { 00041 00042 private: 00043 00044 bool done; 00045 00046 protected: 00047 00048 virtual void visit(const Geometry &element)=0; 00049 virtual bool isDone()=0; 00050 00051 public: 00052 00053 ShortCircuitedGeometryVisitor() 00054 : 00055 done(false) 00056 {} 00057 00058 void applyTo(const Geometry &geom); 00059 00060 virtual ~ShortCircuitedGeometryVisitor() {} 00061 00062 }; 00063 00064 } // namespace geos.geom.util 00065 } // namespace geos.geom 00066 } // namespace geos 00067 00068 #endif