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App_WithDoc.h

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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_APP_WITHDOC_H
00020 #define BAKERY_APP_WITHDOC_H
00021 
00022 #include <bakery/App/App.h>
00023 #include <bakery/Document/Document.h>
00024 
00025 namespace Bakery
00026 {
00027 
00056 class App_WithDoc : virtual public App //virtual because App_WithDoc_Gtk will inherit it via App_With_Doc and via App_Gtk.
00057 {
00058 public: 
00060   App_WithDoc(const Glib::ustring& appname);
00061   virtual ~App_WithDoc();
00062 
00063   virtual void init(); //overridden to create document.
00064 
00065   enum enumSaveChanges
00066   {
00067     SAVECHANGES_Save,
00068     SAVECHANGES_Cancel,
00069     SAVECHANGES_Discard
00070   };
00071  
00072 protected:
00073   virtual void init_create_document(); //override this to new() the specific document type.
00074 
00076   virtual Document* get_document();
00077 
00079   virtual const Document* get_document() const ;
00080   
00081   virtual void set_document_modified(bool bModified = true);
00082   
00084   virtual bool open_document(const Glib::ustring& strFilepath);
00085 
00086   static void document_history_add(const Glib::ustring& strFilepath);
00087   static void document_history_remove(const Glib::ustring& strFilepath);
00088 
00089   static void session_load_document_history();
00090   static void session_save_document_history();
00091 
00092   //Signal handlers:
00093 
00094 public:
00095   //Menu items:
00096   virtual void on_menu_file_open();
00097   virtual void on_menu_file_open_recent(guint index); //use with SigC::bind.
00098   virtual void on_menu_file_saveas(); //signal handler.
00099   virtual void offer_saveas(); //For direct use.
00100   virtual void on_menu_file_save(); //signal handler.
00101   virtual void on_menu_file_close();
00102 
00103   virtual void on_menu_edit_copy();
00104   virtual void on_menu_edit_paste();
00105   virtual void on_menu_edit_clear();
00106   
00107   //Document:
00109   virtual void on_document_modified();
00110   
00112   virtual void on_document_load();
00113 
00114 
00115   virtual void offer_to_save_changes();
00116   
00118   virtual void cancel_close_or_exit();
00119   
00121   virtual void close_mark_or_destroy();
00122   
00123   virtual void update_window_title();
00124   static void show_document_history_in_all_instances(); //In all instances' menus.
00125   virtual void show_document_history(); //override this.
00126   virtual void after_successful_save(); //e.g. disable File|Save.
00127 
00128   virtual void ui_warning(const Glib::ustring& text) = 0;
00129   virtual Glib::ustring ui_file_select_open() = 0;
00130   virtual Glib::ustring ui_file_select_save(const Glib::ustring& old_filepath) = 0;
00131   virtual void ui_show_modification_status() = 0;
00132 
00133   virtual enumSaveChanges ui_offer_to_save_changes() = 0;
00134 
00135   virtual bool ui_ask_overwrite(const std::string& filepath) = 0;
00136   
00137   static Glib::ustring get_conf_fullkey(const Glib::ustring& key);
00138 
00139 
00140   //Document:
00141   Document* m_pDocument; //An instance of a derived type.
00142   bool m_bCloseAfterSave;
00143 
00144   typedef std::vector<Glib::ustring> type_vecStrings;
00145   static type_vecStrings m_vecDocHistory; //Previously-opened files.
00146 };
00147 
00148 } //namespace
00149 
00150 #endif //BAKERY_APP_WITHDOC_H

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