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//=============================================================================
// MusE
// Linux Music Editor
// $Id:$
//
// Copyright (C) 2002-2006 by Werner Schweer and others
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//=============================================================================
#include "globals.h"
#include "event.h"
#include "waveevent.h"
#include "al/xml.h"
#include "wave.h"
//---------------------------------------------------------
// WaveEvent
//---------------------------------------------------------
WaveEventBase::WaveEventBase(EventType t)
: EventBase(t)
{
deleted = false;
}
//---------------------------------------------------------
// WaveEvent::mid
//---------------------------------------------------------
EventBase* WaveEventBase::mid(unsigned b, unsigned e)
{
WaveEventBase* ev = new WaveEventBase(*this);
int offset = b - frame();
unsigned end = endFrame();
if (e < end)
end = e;
int len = end - b;
ev->setFrame(b);
ev->setLenFrame(len);
ev->setSpos(spos() + offset);
return ev;
}
//---------------------------------------------------------
// dump
//---------------------------------------------------------
void WaveEventBase::dump(int n) const
{
EventBase::dump(n);
}
//---------------------------------------------------------
// WaveEventBase::read
//---------------------------------------------------------
void WaveEventBase::read(QDomNode node)
{
node = node.firstChild();
while (!node.isNull()) {
QDomElement e = node.toElement();
if (e.tagName() == "poslen")
PosLen::read(node);
else if (e.tagName() == "frame")
_spos = e.text().toInt();
else if (e.tagName() == "file") {
SndFile* wf = SndFile::getWave(e.text(), false);
if (wf)
f = SndFileR(wf);
}
else
printf("MusE:WaveEventBase: unknown tag %s\n", e.tagName().toLatin1().data());
node = node.nextSibling();
}
Pos::setType(AL::FRAMES);
}
//---------------------------------------------------------
// write
//---------------------------------------------------------
void WaveEventBase::write(Xml& xml, const Pos& offset) const
{
if (f.isNull())
return;
xml.stag("event");
PosLen wpos(*this);
wpos += offset;
// if (offset)
// wpos.setTick(wpos.tick() + offset);
wpos.write(xml, "poslen");
xml.tag("frame", _spos); // offset in wave file
xml.tag("file", f.finfo()->fileName());
xml.etag("event");
}
//---------------------------------------------------------
// read
//---------------------------------------------------------
void WaveEventBase::read(unsigned offset, float** buffer, int channel, int n)
{
if (f.isNull())
return;
f.seek(offset + _spos);
f.read(channel, buffer, n);
}
//---------------------------------------------------------
// WaveEventBase::operator==
//---------------------------------------------------------
bool WaveEventBase::operator==(const EventBase& ev) const {
const WaveEventBase* pev = dynamic_cast<const WaveEventBase*>(&ev);
if(pev) return operator==(*pev);
else return false;
}
bool WaveEventBase::operator==(const WaveEventBase& /*ev*/) const {
//TODO
return false;
}
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