00001 /* 00002 * Copyright 2000 Murray Cumming 00003 * 00004 * This library is free software; you can redistribute it and/or 00005 * modify it under the terms of the GNU Library General Public 00006 * License as published by the Free Software Foundation; either 00007 * version 2 of the License, or (at your option) any later version. 00008 * 00009 * This library is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 * Library General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU Library General Public 00015 * License along with this library; if not, write to the Free 00016 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 */ 00018 00019 #ifndef BAKERY_VIEW_H 00020 #define BAKERY_VIEW_H 00021 00022 #include "ViewBase.h" 00023 #include "../Document/Document.h" 00024 #include <sigc++/sigc++.h> 00025 00026 namespace Bakery 00027 { 00028 00032 template< class T_Document > 00033 class View : public ViewBase 00034 { 00035 public: 00036 View() 00037 : m_pDocument(0) 00038 { 00039 } 00040 00041 virtual ~View() 00042 { 00043 } 00044 00045 typedef View<T_Document> type_self; 00046 00047 //typedef typename T_Document type_document; 00048 00049 virtual T_Document* get_document() 00050 { 00051 return m_pDocument; 00052 } 00053 00054 virtual const T_Document* get_document() const 00055 { 00056 return m_pDocument; 00057 } 00058 00059 virtual void set_document(T_Document* pDocument) 00060 { 00061 m_pDocument = pDocument; 00062 if(m_pDocument) 00063 m_pDocument->signal_forget().connect( sigc::mem_fun(*this, &type_self::on_document_forget) ); 00064 } 00065 00067 virtual void set_modified(bool val = true) 00068 { 00069 if(m_pDocument) 00070 m_pDocument->set_modified(val); 00071 } 00072 00073 protected: 00074 00075 void on_document_forget() 00076 { 00077 //This should prevent some segfaults: 00078 m_pDocument = 0; 00079 } 00080 00081 T_Document* m_pDocument; 00082 }; 00083 00084 } //namespace 00085 00086 #endif //BAKERY_VIEW_H 00087