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157 lines
3.5 KiB
157 lines
3.5 KiB
/*
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This file is part of KOrganizer.
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Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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As a special exception, permission is given to link this program
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with any edition of Qt, and distribute the resulting executable,
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without including the source code for Qt in the source distribution.
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*/
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#ifndef KORG_HISTORY_H
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#define KORG_HISTORY_H
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#include <tqobject.h>
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#include <tqptrlist.h>
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namespace KCal {
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class Calendar;
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class Incidence;
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}
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namespace KOrg {
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class History : public QObject
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{
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Q_OBJECT
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public:
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History( KCal::Calendar * );
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void recordDelete( KCal::Incidence * );
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void recordAdd( KCal::Incidence * );
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void recordEdit( KCal::Incidence *oldIncidence,
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KCal::Incidence *newIncidence );
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void startMultiModify( const TQString &description );
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void endMultiModify();
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public slots:
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void undo();
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void redo();
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signals:
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void undone();
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void redone();
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void undoAvailable( const TQString & );
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void redoAvailable( const TQString & );
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protected:
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void truncate();
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private:
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class Entry
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{
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public:
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Entry( KCal::Calendar * );
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virtual ~Entry();
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virtual void undo() = 0;
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virtual void redo() = 0;
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virtual TQString text() = 0;
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protected:
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KCal::Calendar *mCalendar;
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};
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class EntryDelete : public Entry
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{
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public:
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EntryDelete( KCal::Calendar *, KCal::Incidence * );
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~EntryDelete();
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void undo();
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void redo();
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TQString text();
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private:
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KCal::Incidence *mIncidence;
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};
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class EntryAdd : public Entry
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{
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public:
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EntryAdd( KCal::Calendar *, KCal::Incidence * );
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~EntryAdd();
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void undo();
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void redo();
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TQString text();
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private:
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KCal::Incidence *mIncidence;
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};
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class EntryEdit : public Entry
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{
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public:
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EntryEdit( KCal::Calendar *calendar, KCal::Incidence *oldIncidence,
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KCal::Incidence *newIncidence );
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~EntryEdit();
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void undo();
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void redo();
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TQString text();
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private:
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KCal::Incidence *mOldIncidence;
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KCal::Incidence *mNewIncidence;
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};
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class MultiEntry : public Entry
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{
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public:
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MultiEntry( KCal::Calendar *calendar, const TQString &text );
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~MultiEntry();
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void appendEntry( Entry* entry );
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void undo();
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void redo();
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TQString text();
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private:
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TQPtrList<Entry> mEntries;
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TQString mText;
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};
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KCal::Calendar *mCalendar;
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MultiEntry *mCurrentMultiEntry;
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TQPtrList<Entry> mEntries;
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TQPtrListIterator<Entry> mUndoEntry;
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TQPtrListIterator<Entry> mRedoEntry;
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};
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}
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#endif
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