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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1616 0778d3d1-df1d-0410-868b-ea421aaaa00d
175 lines
3.3 KiB
C++
175 lines
3.3 KiB
C++
#ifndef SINGLE_SOURCE_COMPILE
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/*
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* project_journal.cpp - implementation of project-journal
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*
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* Copyright (c) 2006-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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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 GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#include <cstdlib>
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#include "project_journal.h"
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#include "engine.h"
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#include "journalling_object.h"
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#include "song.h"
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projectJournal::projectJournal( void ) :
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m_joIDs(),
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m_journalEntries(),
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m_currentJournalEntry( m_journalEntries.end() ),
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m_journalling( FALSE )
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{
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}
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projectJournal::~projectJournal()
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{
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}
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void projectJournal::undo( void )
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{
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if( m_journalEntries.empty() == TRUE )
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{
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return;
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}
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journallingObject * jo;
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if( m_currentJournalEntry - 1 >= m_journalEntries.begin() &&
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( jo = m_joIDs[*--m_currentJournalEntry] ) != NULL )
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{
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jo->undo();
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engine::getSong()->setModified();
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}
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}
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void projectJournal::redo( void )
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{
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if( m_journalEntries.empty() == TRUE )
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{
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return;
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}
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journallingObject * jo;
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//printf("%d\n", m_joIDs[*(m_currentJournalEntry+1)] );
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if( m_currentJournalEntry < m_journalEntries.end() &&
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( jo = m_joIDs[*m_currentJournalEntry++] ) != NULL )
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{
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jo->redo();
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engine::getSong()->setModified();
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}
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}
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void projectJournal::journalEntryAdded( const jo_id_t _id )
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{
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m_journalEntries.erase( m_currentJournalEntry, m_journalEntries.end() );
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m_journalEntries.push_back( _id );
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m_currentJournalEntry = m_journalEntries.end();
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engine::getSong()->setModified();
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}
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jo_id_t projectJournal::allocID( journallingObject * _obj )
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{
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const jo_id_t EO_ID_MAX = (1 << 23)-1;
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jo_id_t id;
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while( m_joIDs.contains( id =
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static_cast<jo_id_t>( (jo_id_t)rand()*(jo_id_t)rand() %
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EO_ID_MAX ) ) )
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{
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}
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m_joIDs[id] = _obj;
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//printf("new id: %d\n", id );
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return( id );
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}
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void projectJournal::reallocID( const jo_id_t _id, journallingObject * _obj )
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{
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//printf("realloc %d %d\n", _id, _obj );
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// if( m_joIDs.contains( _id ) )
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{
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m_joIDs[_id] = _obj;
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}
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}
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void projectJournal::forgetAboutID( const jo_id_t _id )
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{
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//printf("forget about %d\n", _id );
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journalEntryVector::iterator it;
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while( ( it = qFind( m_journalEntries.begin(), m_journalEntries.end(),
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_id ) ) != m_journalEntries.end() )
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{
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if( m_currentJournalEntry >= it )
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{
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--m_currentJournalEntry;
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}
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m_journalEntries.erase( it );
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}
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m_joIDs.remove( _id );
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}
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void projectJournal::clearJournal( void )
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{
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m_journalEntries.clear();
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m_currentJournalEntry = m_journalEntries.end();
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for( joIDMap::iterator it = m_joIDs.begin(); it != m_joIDs.end(); )
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{
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if( it.value() == NULL )
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{
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it = m_joIDs.erase( it );
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}
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else
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{
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++it;
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}
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}
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}
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#endif
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