Main Page | Namespace List | Class Hierarchy | Alphabetical List | Class List | Directories | File List | Namespace Members | Class Members | File Members

View_Composite.h

Go to the documentation of this file.
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_COMPOSITE_H
00020 #define BAKERY_VIEW_COMPOSITE_H
00021 
00022 #include "bakery/View/View.h"
00023 #include <vector>
00024 #include <algorithm> //For std::find
00025 
00026 namespace Bakery
00027 {
00028 
00032 template< class T_Document >
00033 class View_Composite : public View<T_Document>
00034 {
00035 public: 
00036         View_Composite()
00037         {
00038         }
00039         
00040         virtual ~View_Composite()
00041         {
00042         }
00043         
00044         typedef View<T_Document> type_view;
00045         
00046         virtual void add_view(type_view* pView)
00047         {
00048           //Ensure that the view has the same document:
00049           //This should be unnecessary.
00050           if(pView)
00051           {
00052                 pView->set_document(this->get_document());
00053                 
00054                 //Add it to the list of child views:
00055           m_vecViews.push_back(pView);
00056           }
00057         }
00058         
00059         virtual void remove_view(type_view* pView)
00060         {
00061           typename type_vecViews::iterator iter = std::find(m_vecViews.begin(), m_vecViews.end(), pView);
00062           if(iter != m_vecViews.end())
00063             m_vecViews.erase(iter);
00064         }
00065         
00066         virtual void set_document(T_Document* pDocument)
00067   {
00068     //Call base class:
00069     View<T_Document>::set_document(pDocument);
00070 
00071     //Change the document in the child views.
00072           for(typename type_vecViews::iterator iter = m_vecViews.begin(); iter != m_vecViews.end(); iter++)
00073           {
00074             type_view* pView = *iter;
00075             if(pView)
00076               pView->set_document(pDocument);
00077           }
00078   }
00079         
00080         virtual void load_from_document()
00081         {
00082           //Delegate to the child views:
00083           for(typename type_vecViews::iterator iter = m_vecViews.begin(); iter != m_vecViews.end(); iter++)
00084           {
00085             type_view* pView = *iter;
00086             if(pView)
00087               pView->load_from_document();
00088           }
00089         }
00090         
00091   virtual void save_to_document()
00092   {
00093     //Delegate to the child views:
00094           for(typename type_vecViews::iterator iter = m_vecViews.begin(); iter != m_vecViews.end(); iter++)
00095           {
00096             type_view* pView = *iter;
00097             if(pView)
00098               pView->save_to_document();
00099           }
00100   }
00101 
00102 protected:
00103   typedef std::vector<type_view*> type_vecViews;
00104   type_vecViews m_vecViews;             
00105 };
00106 
00107 } //namespace
00108 
00109 #endif

Generated on Tue Dec 14 18:54:16 2004 for bakery by  doxygen 1.3.9.1