The Gnome Chemistry Utils 0.13.3
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00001 // -*- C++ -*- 00002 00003 /* 00004 * GChemPaint library 00005 * operation.h 00006 * 00007 * Copyright (C) 2002-2008 Jean Bréfort <jean.brefort@normalesup.org> 00008 * 00009 * This program is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU General Public License as 00011 * published by the Free Software Foundation; either version 2 of the 00012 * License, or (at your option) any later version. 00013 * 00014 * This program is distributed in the hope that it will be useful, 00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00017 * GNU General Public License for more details. 00018 * 00019 * You should have received a copy of the GNU General Public License 00020 * along with this program; if not, write to the Free Software 00021 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 00022 * USA 00023 */ 00024 00026 #ifndef GCHEMPAINT_OPERATION_H 00027 #define GCHEMPAINT_OPERATION_H 00028 00029 #include <gcu/macros.h> 00030 #include <gcu/object.h> 00031 00033 namespace gcp { 00034 00035 class Document; 00036 00041 typedef enum 00042 { 00046 GCP_ADD_OPERATION, 00050 GCP_DELETE_OPERATION, 00054 GCP_MODIFY_OPERATION, 00055 } OperationType; 00056 00061 class Operation 00062 { 00063 public: 00071 Operation (Document *pDoc, unsigned long ID); 00072 virtual ~Operation (); 00073 00077 virtual void Undo () = 0; 00081 virtual void Redo () = 0; 00105 virtual void AddObject (gcu::Object* pObject, unsigned type = 0); 00117 virtual void AddNode (xmlNodePtr node, unsigned type = 0); 00118 00119 protected: 00129 void Add (unsigned type = 0); 00139 void Delete (unsigned type = 0); 00140 00141 protected: 00145 xmlNodePtr* m_Nodes; 00146 00147 private: 00148 gcp::Document* m_pDoc; 00149 00150 GCU_RO_PROP (unsigned long, ID); 00151 }; 00152 00156 class AddOperation: public Operation 00157 { 00158 public: 00166 AddOperation (gcp::Document *pDoc, unsigned long ID); 00167 virtual ~AddOperation (); 00168 00172 void Undo (); 00176 void Redo (); 00177 }; 00178 00182 class DeleteOperation: public Operation 00183 { 00184 public: 00192 DeleteOperation (gcp::Document *pDoc, unsigned long ID); 00193 virtual ~DeleteOperation (); 00194 00198 void Undo (); 00202 void Redo (); 00203 }; 00204 00208 class ModifyOperation: public Operation 00209 { 00210 public: 00218 ModifyOperation (gcp::Document *pDoc, unsigned long ID); 00219 virtual ~ModifyOperation (); 00220 00224 void Undo (); 00228 void Redo (); 00229 }; 00230 00231 } // namespace gcp 00232 00233 #endif //GCHEMPAINT_OPERATION_H