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Diffstat (limited to 'src/commands/edit/PasteSegmentsCommand.cpp')
-rw-r--r-- | src/commands/edit/PasteSegmentsCommand.cpp | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/src/commands/edit/PasteSegmentsCommand.cpp b/src/commands/edit/PasteSegmentsCommand.cpp new file mode 100644 index 0000000..ab3372a --- /dev/null +++ b/src/commands/edit/PasteSegmentsCommand.cpp @@ -0,0 +1,153 @@ +/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ + +/* + Rosegarden + A MIDI and audio sequencer and musical notation editor. + + This program is Copyright 2000-2008 + Guillaume Laurent <[email protected]>, + Chris Cannam <[email protected]>, + Richard Bown <[email protected]> + + The moral rights of Guillaume Laurent, Chris Cannam, and Richard + Bown to claim authorship of this work have been asserted. + + Other copyrights also apply to some parts of this work. Please + see the AUTHORS file and individual file headers for details. + + 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. See the file + COPYING included with this distribution for more information. +*/ + + +#include "PasteSegmentsCommand.h" + +#include "base/Clipboard.h" +#include "base/Composition.h" +#include "base/Segment.h" +#include "base/Track.h" +#include <qstring.h> + + +namespace Rosegarden +{ + +PasteSegmentsCommand::PasteSegmentsCommand(Composition *composition, + Clipboard *clipboard, + timeT pasteTime, + TrackId baseTrack, + bool useExactTracks) : + KNamedCommand(getGlobalName()), + m_composition(composition), + m_clipboard(new Clipboard(*clipboard)), + m_pasteTime(pasteTime), + m_baseTrack(baseTrack), + m_exactTracks(useExactTracks), + m_detached(false) +{ + // nothing else +} + +PasteSegmentsCommand::~PasteSegmentsCommand() +{ + if (m_detached) { + for (unsigned int i = 0; i < m_addedSegments.size(); ++i) { + delete m_addedSegments[i]; + } + } + + delete m_clipboard; +} + +void +PasteSegmentsCommand::execute() +{ + if (m_addedSegments.size() > 0) { + // been here before + for (unsigned int i = 0; i < m_addedSegments.size(); ++i) { + m_composition->addSegment(m_addedSegments[i]); + } + return ; + } + + if (m_clipboard->isEmpty()) + return ; + + // We want to paste such that the earliest Segment starts at + // m_pasteTime and the others start at the same times relative to + // that as they did before. Likewise for track, unless + // m_exactTracks is set. + + timeT earliestStartTime = m_clipboard->getBaseTime(); + timeT latestEndTime = 0; + int lowestTrackPos = -1; + + for (Clipboard::iterator i = m_clipboard->begin(); + i != m_clipboard->end(); ++i) { + + int trackPos = m_composition->getTrackPositionById((*i)->getTrack()); + if (trackPos >= 0 && + (lowestTrackPos < 0 || trackPos < lowestTrackPos)) { + lowestTrackPos = trackPos; + } + + if ((*i)->getEndMarkerTime() > latestEndTime) { + latestEndTime = (*i)->getEndMarkerTime(); + } + } + + if (m_exactTracks) + lowestTrackPos = 0; + if (lowestTrackPos < 0) + lowestTrackPos = 0; + timeT offset = m_pasteTime - earliestStartTime; + int baseTrackPos = m_composition->getTrackPositionById(m_baseTrack); + int trackOffset = baseTrackPos - lowestTrackPos; + + for (Clipboard::iterator i = m_clipboard->begin(); + i != m_clipboard->end(); ++i) { + + int newTrackPos = trackOffset + + m_composition->getTrackPositionById((*i)->getTrack()); + + Track *track = m_composition->getTrackByPosition(newTrackPos); + + if (!track) { + newTrackPos = 0; + track = m_composition->getTrackByPosition(newTrackPos); + } + + TrackId newTrackId = track->getId(); + + Segment *segment = new Segment(**i); + segment->setStartTime(segment->getStartTime() + offset); + segment->setTrack(newTrackId); + m_composition->addSegment(segment); + if (m_clipboard->isPartial()) { + segment->normalizeRests(segment->getStartTime(), + segment->getEndMarkerTime()); + } + m_addedSegments.push_back(segment); + } + + // User preference? Update song pointer position on paste + m_composition->setPosition(latestEndTime + + m_pasteTime + - earliestStartTime); + + m_detached = false; +} + +void +PasteSegmentsCommand::unexecute() +{ + for (unsigned int i = 0; i < m_addedSegments.size(); ++i) { + m_composition->detachSegment(m_addedSegments[i]); + } + m_detached = true; +} + +} |