mirror of
https://github.com/LMMS/lmms.git
synced 2026-01-25 14:58:07 -05:00
dd06154ed6
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1073 0778d3d1-df1d-0410-868b-ea421aaaa00d
109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
/*
|
|
* project_journal.h - declaration of class projectJournal
|
|
*
|
|
* Copyright (c) 2006-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
|
|
*
|
|
* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public
|
|
* License along with this program (see COPYING); if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301 USA.
|
|
*
|
|
*/
|
|
|
|
|
|
#ifndef _PROJECT_JOURNAL_H
|
|
#define _PROJECT_JOURNAL_H
|
|
|
|
#include <QtCore/QHash>
|
|
#include <QtCore/QVariant>
|
|
#include <QtCore/QVector>
|
|
|
|
#include "types.h"
|
|
|
|
|
|
class journallingObject;
|
|
|
|
|
|
class projectJournal
|
|
{
|
|
public:
|
|
projectJournal( void );
|
|
virtual ~projectJournal();
|
|
|
|
void undo( void );
|
|
void redo( void );
|
|
|
|
// tell history that a new journal entry was added to object with ID _id
|
|
void journalEntryAdded( const jo_id_t _id );
|
|
|
|
bool isJournalling( void ) const
|
|
{
|
|
return( m_journalling );
|
|
}
|
|
|
|
void setJournalling( const bool _on )
|
|
{
|
|
m_journalling = _on;
|
|
}
|
|
|
|
// alloc new ID and register object _obj to it
|
|
jo_id_t allocID( journallingObject * _obj );
|
|
|
|
// if there's already something known about ID _id, but it is currently
|
|
// unused (e.g. after jouralling object was deleted), register object
|
|
// _obj to this id
|
|
void reallocID( const jo_id_t _id, journallingObject * _obj );
|
|
|
|
// make ID _id unused, but keep all global journalling information
|
|
// (order of journalling entries etc.) referring to _id - needed for
|
|
// restoring a journalling object later
|
|
void freeID( const jo_id_t _id )
|
|
{
|
|
reallocID( _id, NULL );
|
|
}
|
|
|
|
// completely remove everything linked with ID _id - all global
|
|
// journalling information about the ID get's lost
|
|
void forgetAboutID( const jo_id_t _id );
|
|
|
|
void clearJournal( void );
|
|
|
|
journallingObject * getJournallingObject( const jo_id_t _id )
|
|
{
|
|
if( m_joIDs.contains( _id ) )
|
|
{
|
|
return( m_joIDs[_id] );
|
|
}
|
|
return( NULL );
|
|
}
|
|
|
|
|
|
private:
|
|
typedef QHash<jo_id_t, journallingObject *> joIDMap;
|
|
typedef QVector<jo_id_t> journalEntryVector;
|
|
|
|
joIDMap m_joIDs;
|
|
|
|
journalEntryVector m_journalEntries;
|
|
journalEntryVector::iterator m_currentJournalEntry;
|
|
|
|
bool m_journalling;
|
|
|
|
} ;
|
|
|
|
|
|
#endif
|
|
|