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Diffstat (limited to 'src/commands/edit/CutAndCloseCommand.cpp')
-rw-r--r-- | src/commands/edit/CutAndCloseCommand.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/commands/edit/CutAndCloseCommand.cpp b/src/commands/edit/CutAndCloseCommand.cpp new file mode 100644 index 0000000..a99b4ef --- /dev/null +++ b/src/commands/edit/CutAndCloseCommand.cpp @@ -0,0 +1,163 @@ +/* -*- 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 <glaurent@telegraph-road.org>, + Chris Cannam <cannam@all-day-breakfast.com>, + Richard Bown <richard.bown@ferventsoftware.com> + + 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 "CutAndCloseCommand.h" + +#include "base/Clipboard.h" +#include "base/NotationTypes.h" +#include "base/Segment.h" +#include "base/Selection.h" +#include "CutCommand.h" +#include <qstring.h> +#include "misc/Debug.h" + + +namespace Rosegarden +{ + +CutAndCloseCommand::CutAndCloseCommand(EventSelection &selection, + Clipboard *clipboard) : + KMacroCommand(getGlobalName()) +{ + addCommand(new CutCommand(selection, clipboard)); + addCommand(new CloseCommand(&selection.getSegment(), + selection.getEndTime(), + selection.getStartTime())); +} + +void +CutAndCloseCommand::CloseCommand::execute() +{ + // We shift all the events from m_gapEnd to the end of the + // segment back so that they start at m_gapStart instead of m_gapEnd. + + assert(m_gapEnd >= m_gapStart); + if (m_gapEnd == m_gapStart) + return ; + + // We also need to record how many events there are already at + // m_gapStart so that we can leave those unchanged when we undo. + // (This command is executed on the understanding that the area + // between m_gapStart and m_gapEnd is empty of all but rests, but + // in practice there may be other things such as a clef at the + // same time as m_gapStart. This will only work for events that + // have smaller subordering than notes etc.) + + m_staticEvents = 0; + for (Segment::iterator i = m_segment->findTime(m_gapStart); + m_segment->isBeforeEndMarker(i); ++i) { + if ((*i)->getAbsoluteTime() > m_gapStart) + break; + if ((*i)->isa(Note::EventRestType)) + continue; + ++m_staticEvents; + } + + std::vector<Event *> events; + timeT timeDifference = m_gapEnd - m_gapStart; + + for (Segment::iterator i = m_segment->findTime(m_gapEnd); + m_segment->isBeforeEndMarker(i); ++i) { + events.push_back((*i)->copyMoving( -timeDifference)); + } + + timeT oldEndTime = m_segment->getEndTime(); + + // remove rests from target area, and everything thereafter + for (Segment::iterator i = m_segment->findTime(m_gapStart); + m_segment->isBeforeEndMarker(i); ) { + if ((*i)->getAbsoluteTime() >= m_gapEnd || + (*i)->isa(Note::EventRestType)) { + Segment::iterator j(i); + ++j; + m_segment->erase(i); + i = j; + } else { + ++i; + } + } + + for (unsigned int i = 0; i < events.size(); ++i) { + m_segment->insert(events[i]); + } + + m_segment->normalizeRests(m_segment->getEndTime(), oldEndTime); +} + +void +CutAndCloseCommand::CloseCommand::unexecute() +{ + // We want to shift events from m_gapStart to the end of the + // segment forward so as to start at m_gapEnd instead of + // m_gapStart. + + assert(m_gapEnd >= m_gapStart); + if (m_gapEnd == m_gapStart) + return ; + + // May need to ignore some static events at m_gapStart. + // These are assumed to have smaller subordering than whatever + // we're not ignoring. Actually this still isn't quite right: + // it'll do the wrong thing where we have, say, a clef then + // some notes then another clef and we cut-and-close all the + // notes and then undo. But it's better than we were doing + // before. + + Segment::iterator starti = m_segment->findTime(m_gapStart); + + while (m_segment->isBeforeEndMarker(starti)) { + if (m_staticEvents == 0) + break; + if ((*starti)->getAbsoluteTime() > m_gapStart) + break; + if (!(*starti)->isa(Note::EventRestType)) + --m_staticEvents; + ++starti; + } + + std::vector<Event *> events; + timeT timeDifference = m_gapEnd - m_gapStart; + + for (Segment::iterator i = starti; m_segment->isBeforeEndMarker(i); ) { + Segment::iterator j(i); + ++j; + events.push_back((*i)->copyMoving(timeDifference)); + m_segment->erase(i); + i = j; + } + + for (unsigned int i = 0; i < events.size(); ++i) { + m_segment->insert(events[i]); + } + + timeT endTime = m_segment->getEndTime(); + NOTATION_DEBUG << "setting end time to " << (endTime - timeDifference) << endl; + //!!! this following is not working for bugaccidentals.rg: + m_segment->setEndTime(endTime - timeDifference); + + m_segment->normalizeRests(m_gapStart, m_gapEnd); +} + +} |