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// -*- c-basic-offset: 4 -*-
/*
Rosegarden-4
A sequencer and musical notation editor.
This program is Copyright 2000-2005
Guillaume Laurent <glaurent@telegraph-road.org>,
Chris Cannam <cannam@all-day-breakfast.com>,
Richard Bown <bownie@bownie.com>
The moral right of the authors to claim authorship of this work
has been asserted.
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 "basiccommand.h"
#include "Selection.h"
#include <qstring.h>
#include "rosestrings.h"
#include "rosedebug.h"
using Rosegarden::Segment;
using Rosegarden::EventSelection;
using Rosegarden::Event;
using Rosegarden::timeT;
BasicCommand::BasicCommand(const QString &name, Segment &segment,
timeT start, timeT end, bool bruteForceRedo) :
KNamedCommand(name),
m_startTime(calculateStartTime(start, segment)),
m_endTime(calculateEndTime(end, segment)),
m_segment(segment),
m_savedEvents(segment.getType(), m_startTime),
m_doBruteForceRedo(false),
m_redoEvents(0)
{
if (m_endTime == m_startTime) ++m_endTime;
if (bruteForceRedo) {
m_redoEvents = new Segment(segment.getType(), m_startTime);
}
}
BasicCommand::~BasicCommand()
{
m_savedEvents.clear();
if (m_redoEvents) m_redoEvents->clear();
delete m_redoEvents;
}
timeT
BasicCommand::calculateStartTime(timeT given, Segment &segment)
{
timeT actual = given;
Segment::iterator i = segment.findTime(given);
while (i != segment.end() && (*i)->getAbsoluteTime() == given) {
timeT notation = (*i)->getNotationAbsoluteTime();
if (notation < given) actual = notation;
++i;
}
return actual;
}
timeT
BasicCommand::calculateEndTime(timeT given, Segment &segment)
{
timeT actual = given;
Segment::iterator i = segment.findTime(given);
while (i != segment.end() && (*i)->getAbsoluteTime() == given) {
timeT notation = (*i)->getNotationAbsoluteTime();
if (notation > given) actual = notation;
++i;
}
return actual;
}
Rosegarden::Segment& BasicCommand::getSegment()
{
return m_segment;
}
Rosegarden::timeT BasicCommand::getRelayoutEndTime()
{
return getEndTime();
}
void
BasicCommand::beginExecute()
{
copyTo(&m_savedEvents);
}
void
BasicCommand::execute()
{
beginExecute();
if (!m_doBruteForceRedo) {
modifySegment();
} else {
copyFrom(m_redoEvents);
}
m_segment.updateRefreshStatuses(getStartTime(), getRelayoutEndTime());
RG_DEBUG << "BasicCommand(" << name() << "): updated refresh statuses "
<< getStartTime() << " -> " << getRelayoutEndTime() << endl;
}
void
BasicCommand::unexecute()
{
if (m_redoEvents) {
copyTo(m_redoEvents);
m_doBruteForceRedo = true;
}
copyFrom(&m_savedEvents);
m_segment.updateRefreshStatuses(getStartTime(), getRelayoutEndTime());
}
void
BasicCommand::copyTo(Rosegarden::Segment *events)
{
RG_DEBUG << "BasicCommand(" << name() << ")::copyTo: " << &m_segment << " to "
<< events << ", range ("
<< m_startTime << "," << m_endTime
<< ")" << endl;
Segment::iterator from = m_segment.findTime(m_startTime);
Segment::iterator to = m_segment.findTime(m_endTime);
for (Segment::iterator i = from; i != m_segment.end() && i != to; ++i) {
// RG_DEBUG << "Found event of type " << (*i)->getType() << " and duration " << (*i)->getDuration() << endl;
events->insert(new Event(**i));
}
}
void
BasicCommand::copyFrom(Rosegarden::Segment *events)
{
RG_DEBUG << "BasicCommand(" << name() << ")::copyFrom: " << events << " to "
<< &m_segment << ", range ("
<< m_startTime << "," << m_endTime
<< ")" << endl;
m_segment.erase(m_segment.findTime(m_startTime),
m_segment.findTime(m_endTime));
for (Segment::iterator i = events->begin(); i != events->end(); ++i) {
// RG_DEBUG << "Found event of type " << (*i)->getType() << " and duration " << (*i)->getDuration() << endl;
m_segment.insert(new Event(**i));
}
events->clear();
}
BasicSelectionCommand::BasicSelectionCommand(const QString &name,
EventSelection &selection,
bool bruteForceRedo) :
BasicCommand(name,
selection.getSegment(),
selection.getStartTime(),
selection.getEndTime(),
bruteForceRedo)
{
// nothing
}
BasicSelectionCommand::BasicSelectionCommand(const QString &name,
Segment &segment,
bool bruteForceRedo) :
BasicCommand(name,
segment,
segment.getStartTime(),
segment.getEndMarkerTime(),
bruteForceRedo)
{
// nothing
}
BasicSelectionCommand::~BasicSelectionCommand()
{
// nothing
}
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