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152 lines
4.4 KiB
152 lines
4.4 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 "PasteSegmentsCommand.h"
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#include "base/Clipboard.h"
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#include "base/Composition.h"
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#include "base/Segment.h"
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#include "base/Track.h"
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#include <tqstring.h>
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namespace Rosegarden
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{
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PasteSegmentsCommand::PasteSegmentsCommand(Composition *composition,
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Clipboard *clipboard,
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timeT pasteTime,
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TrackId baseTrack,
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bool useExactTracks) :
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KNamedCommand(getGlobalName()),
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m_composition(composition),
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m_clipboard(new Clipboard(*clipboard)),
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m_pasteTime(pasteTime),
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m_baseTrack(baseTrack),
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m_exactTracks(useExactTracks),
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m_detached(false)
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{
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// nothing else
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}
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PasteSegmentsCommand::~PasteSegmentsCommand()
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{
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if (m_detached) {
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for (unsigned int i = 0; i < m_addedSegments.size(); ++i) {
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delete m_addedSegments[i];
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}
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}
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delete m_clipboard;
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}
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void
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PasteSegmentsCommand::execute()
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{
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if (m_addedSegments.size() > 0) {
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// been here before
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for (unsigned int i = 0; i < m_addedSegments.size(); ++i) {
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m_composition->addSegment(m_addedSegments[i]);
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}
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return ;
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}
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if (m_clipboard->isEmpty())
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return ;
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// We want to paste such that the earliest Segment starts at
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// m_pasteTime and the others start at the same times relative to
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// that as they did before. Likewise for track, unless
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// m_exactTracks is set.
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timeT earliestStartTime = m_clipboard->getBaseTime();
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timeT latestEndTime = 0;
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int lowestTrackPos = -1;
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for (Clipboard::iterator i = m_clipboard->begin();
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i != m_clipboard->end(); ++i) {
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int trackPos = m_composition->getTrackPositionById((*i)->getTrack());
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if (trackPos >= 0 &&
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(lowestTrackPos < 0 || trackPos < lowestTrackPos)) {
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lowestTrackPos = trackPos;
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}
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if ((*i)->getEndMarkerTime() > latestEndTime) {
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latestEndTime = (*i)->getEndMarkerTime();
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}
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}
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if (m_exactTracks)
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lowestTrackPos = 0;
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if (lowestTrackPos < 0)
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lowestTrackPos = 0;
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timeT offset = m_pasteTime - earliestStartTime;
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int baseTrackPos = m_composition->getTrackPositionById(m_baseTrack);
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int trackOffset = baseTrackPos - lowestTrackPos;
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for (Clipboard::iterator i = m_clipboard->begin();
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i != m_clipboard->end(); ++i) {
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int newTrackPos = trackOffset +
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m_composition->getTrackPositionById((*i)->getTrack());
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Track *track = m_composition->getTrackByPosition(newTrackPos);
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if (!track) {
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newTrackPos = 0;
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track = m_composition->getTrackByPosition(newTrackPos);
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}
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TrackId newTrackId = track->getId();
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Segment *segment = new Segment(**i);
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segment->setStartTime(segment->getStartTime() + offset);
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segment->setTrack(newTrackId);
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m_composition->addSegment(segment);
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if (m_clipboard->isPartial()) {
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segment->normalizeRests(segment->getStartTime(),
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segment->getEndMarkerTime());
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}
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m_addedSegments.push_back(segment);
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}
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// User preference? Update song pointer position on paste
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m_composition->setPosition(latestEndTime
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+ m_pasteTime
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- earliestStartTime);
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m_detached = false;
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}
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void
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PasteSegmentsCommand::unexecute()
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{
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for (unsigned int i = 0; i < m_addedSegments.size(); ++i) {
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m_composition->detachSegment(m_addedSegments[i]);
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}
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m_detached = true;
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}
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}
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