nodecursor.hh
Go to the documentation of this file.00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Guido Tack <tack@gecode.org> 00005 * 00006 * Copyright: 00007 * Guido Tack, 2006 00008 * 00009 * Last modified: 00010 * $Date: 2009-09-08 21:10:29 +0200 (Tue, 08 Sep 2009) $ by $Author: schulte $ 00011 * $Revision: 9692 $ 00012 * 00013 * This file is part of Gecode, the generic constraint 00014 * development environment: 00015 * http://www.gecode.org 00016 * 00017 * Permission is hereby granted, free of charge, to any person obtaining 00018 * a copy of this software and associated documentation files (the 00019 * "Software"), to deal in the Software without restriction, including 00020 * without limitation the rights to use, copy, modify, merge, publish, 00021 * distribute, sublicense, and/or sell copies of the Software, and to 00022 * permit persons to whom the Software is furnished to do so, subject to 00023 * the following conditions: 00024 * 00025 * The above copyright notice and this permission notice shall be 00026 * included in all copies or substantial portions of the Software. 00027 * 00028 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00029 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00030 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00031 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 00032 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 00033 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00034 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00035 * 00036 */ 00037 00038 #ifndef GECODE_GIST_NODECURSOR_HH 00039 #define GECODE_GIST_NODECURSOR_HH 00040 00041 #include <gecode/gist/visualnode.hh> 00042 00043 namespace Gecode { namespace Gist { 00044 00046 template<class Node> 00047 class NodeCursor { 00048 private: 00050 Node* _startNode; 00052 Node* _node; 00054 unsigned int _alternative; 00055 protected: 00057 void node(Node* n); 00059 Node* startNode(void); 00060 public: 00062 NodeCursor(Node* theNode); 00064 Node* node(void); 00066 unsigned int alternative(void); 00068 void alternative(unsigned int a); 00069 00071 00072 00073 bool mayMoveUpwards(void); 00075 void moveUpwards(void); 00077 bool mayMoveDownwards(void); 00079 void moveDownwards(void); 00081 bool mayMoveSidewards(void); 00083 void moveSidewards(void); 00085 }; 00086 00088 class HideFailedCursor : public NodeCursor<VisualNode> { 00089 public: 00091 HideFailedCursor(VisualNode* theNode); 00093 00094 00095 bool mayMoveDownwards(void); 00097 void processCurrentNode(void); 00099 }; 00100 00102 class UnhideAllCursor : public NodeCursor<VisualNode> { 00103 public: 00105 UnhideAllCursor(VisualNode* theNode); 00107 00108 00109 void processCurrentNode(void); 00111 }; 00112 00114 class NextSolCursor : public NodeCursor<VisualNode> { 00115 private: 00117 VisualNode* root; 00119 bool back; 00121 bool notOnSol(void); 00122 public: 00124 NextSolCursor(VisualNode* theNode, bool backwards); 00126 00127 00128 void processCurrentNode(void); 00130 bool mayMoveUpwards(void); 00132 bool mayMoveDownwards(void); 00134 void moveDownwards(void); 00136 bool mayMoveSidewards(void); 00138 void moveSidewards(void); 00140 }; 00141 00143 class StatCursor : public NodeCursor<VisualNode> { 00144 private: 00146 int curDepth; 00147 public: 00149 int depth; 00151 int failed; 00153 int solved; 00155 int choice; 00157 int open; 00158 00160 StatCursor(VisualNode* theNode); 00161 00163 00164 00165 void processCurrentNode(void); 00167 void moveDownwards(void); 00169 void moveUpwards(void); 00171 00172 }; 00173 00174 }} 00175 00176 #include <gecode/gist/nodecursor.hpp> 00177 00178 #endif 00179 00180 // STATISTICS: gist-any