korganizer Library API Documentation

history.h

00001 /* 00002 This file is part of KOrganizer. 00003 00004 Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org> 00005 00006 This program is free software; you can redistribute it and/or modify 00007 it under the terms of the GNU General Public License as published by 00008 the Free Software Foundation; either version 2 of the License, or 00009 (at your option) any later version. 00010 00011 This program is distributed in the hope that it will be useful, 00012 but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 GNU General Public License for more details. 00015 00016 You should have received a copy of the GNU General Public License 00017 along with this program; if not, write to the Free Software 00018 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00019 00020 As a special exception, permission is given to link this program 00021 with any edition of Qt, and distribute the resulting executable, 00022 without including the source code for Qt in the source distribution. 00023 */ 00024 #ifndef KORG_HISTORY_H 00025 #define KORG_HISTORY_H 00026 00027 #include <qobject.h> 00028 #include <qptrlist.h> 00029 00030 namespace KCal { 00031 00032 class Calendar; 00033 class Incidence; 00034 00035 } 00036 00037 namespace KOrg { 00038 00039 class History : public QObject 00040 { 00041 Q_OBJECT 00042 public: 00043 History( KCal::Calendar * ); 00044 00045 void recordDelete( KCal::Incidence * ); 00046 void recordAdd( KCal::Incidence * ); 00047 void recordEdit( KCal::Incidence *oldIncidence, 00048 KCal::Incidence *newIncidence ); 00049 00050 public slots: 00051 void undo(); 00052 void redo(); 00053 00054 signals: 00055 void undone(); 00056 void redone(); 00057 00058 void undoAvailable( const QString & ); 00059 void redoAvailable( const QString & ); 00060 00061 protected: 00062 void truncate(); 00063 00064 private: 00065 00066 class Entry 00067 { 00068 public: 00069 Entry( KCal::Calendar * ); 00070 virtual ~Entry(); 00071 00072 virtual void undo() = 0; 00073 virtual void redo() = 0; 00074 00075 virtual QString text() = 0; 00076 00077 protected: 00078 KCal::Calendar *mCalendar; 00079 }; 00080 00081 class EntryDelete : public Entry 00082 { 00083 public: 00084 EntryDelete( KCal::Calendar *, KCal::Incidence * ); 00085 ~EntryDelete(); 00086 00087 void undo(); 00088 void redo(); 00089 00090 QString text(); 00091 00092 private: 00093 KCal::Incidence *mIncidence; 00094 }; 00095 00096 class EntryAdd : public Entry 00097 { 00098 public: 00099 EntryAdd( KCal::Calendar *, KCal::Incidence * ); 00100 ~EntryAdd(); 00101 00102 void undo(); 00103 void redo(); 00104 00105 QString text(); 00106 00107 private: 00108 KCal::Incidence *mIncidence; 00109 }; 00110 00111 class EntryEdit : public Entry 00112 { 00113 public: 00114 EntryEdit( KCal::Calendar *calendar, KCal::Incidence *oldIncidence, 00115 KCal::Incidence *newIncidence ); 00116 ~EntryEdit(); 00117 00118 void undo(); 00119 void redo(); 00120 00121 QString text(); 00122 00123 private: 00124 KCal::Incidence *mOldIncidence; 00125 KCal::Incidence *mNewIncidence; 00126 }; 00127 00128 KCal::Calendar *mCalendar; 00129 00130 QPtrList<Entry> mEntries; 00131 QPtrListIterator<Entry> mUndoEntry; 00132 QPtrListIterator<Entry> mRedoEntry; 00133 }; 00134 00135 } 00136 #endif
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This file is part of the documentation for korganizer Library Version 3.2.2.
Documentation copyright © 1996-2004 the KDE developers.
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