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160 lines
4.6 KiB
160 lines
4.6 KiB
/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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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 License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "DeleteTracksCommand.h"
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#include "misc/Debug.h"
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#include "base/Composition.h"
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#include "base/Segment.h"
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#include <tqstring.h>
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namespace Rosegarden
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{
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DeleteTracksCommand::DeleteTracksCommand(Composition *composition,
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std::vector<TrackId> tracks):
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KNamedCommand(getGlobalName()),
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m_composition(composition),
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m_tracks(tracks),
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m_detached(false)
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{}
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DeleteTracksCommand::~DeleteTracksCommand()
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{
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if (m_detached) {
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for (unsigned int i = 0; i < m_oldTracks.size(); ++i)
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delete m_oldTracks[i];
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for (unsigned int i = 0; i < m_oldSegments.size(); ++i)
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delete m_oldSegments[i];
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m_oldTracks.clear();
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m_oldSegments.clear();
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}
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}
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void DeleteTracksCommand::execute()
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{
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Track *track = 0;
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const Composition::segmentcontainer &segments =
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m_composition->getSegments();
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//cout << "DeleteTracksCommand::execute()" << endl;
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m_oldSegments.clear();
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m_oldTracks.clear();
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// Remap positions and track numbers
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//
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Composition::trackiterator tit;
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Composition::trackcontainer
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&tracks = m_composition->getTracks();
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for (unsigned int i = 0; i < m_tracks.size(); ++i) {
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// detach segments and store tracks somewhere
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track = m_composition->getTrackById(m_tracks[i]);
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if (track) {
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// detach all segments for that track
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//
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for (Composition::segmentcontainer::const_iterator
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it = segments.begin();
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it != segments.end(); ++it) {
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if ((*it)->getTrack() == m_tracks[i]) {
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m_oldSegments.push_back(*it);
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m_composition->detachSegment(*it);
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}
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}
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// store old tracks
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m_oldTracks.push_back(track);
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if (m_composition->detachTrack(track) == false) {
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RG_DEBUG << "DeleteTracksCommand::execute - can't detach track" << endl;
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}
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}
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}
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std::vector<Track*>::iterator otIt;
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for (otIt = m_oldTracks.begin(); otIt != m_oldTracks.end(); ++otIt) {
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for (tit = tracks.begin(); tit != tracks.end(); ++tit) {
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if ((*tit).second->getPosition() > (*otIt)->getPosition()) {
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// If the track we've removed was after the current
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// track then decrement the track position.
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//
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int newPosition = (*tit).second->getPosition() - 1;
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(*tit).second->setPosition(newPosition);
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}
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}
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}
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m_detached = true;
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}
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void DeleteTracksCommand::unexecute()
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{
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// Add the tracks and the segments back in
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//
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// Remap positions and track numbers
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//
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Composition::trackcontainer
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&tracks = m_composition->getTracks();
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Composition::trackiterator tit;
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std::vector<Track*>::iterator otIt;
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for (otIt = m_oldTracks.begin(); otIt != m_oldTracks.end(); ++otIt) {
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// From the back we shuffle out the tracks to allow the new
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// (old) track some space to come back in.
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//
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tit = tracks.end();
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while (true) {
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--tit;
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if ((*tit).second->getPosition() >= (*otIt)->getPosition()) {
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// If the track we're adding has position after the
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// current track then increment position.
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//
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int newPosition = (*tit).second->getPosition() + 1;
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(*tit).second->setPosition(newPosition);
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}
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if (tit == tracks.begin())
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break;
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}
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m_composition->addTrack(*otIt);
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}
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for (unsigned int i = 0; i < m_oldSegments.size(); ++i)
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m_composition->addSegment(m_oldSegments[i]);
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m_detached = false;
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}
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}
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