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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 "velocity.h"
#include "song.h"
#include "tb1.h"
#include "audio.h"
//---------------------------------------------------------
// Velocity
//---------------------------------------------------------
Velocity::Velocity(QWidget*)
: MidiCmdDialog()
{
setWindowTitle(tr("MusE: Modify Velocity"));
QWidget* velocityWidget = new QWidget;
velo.setupUi(velocityWidget);
layout->addWidget(velocityWidget);
layout->addStretch(10);
_rateVal = 0;
_offsetVal = 0;
velo.rate->setValue(_rateVal);
velo.offset->setValue(_offsetVal);
}
//---------------------------------------------------------
// accept
//---------------------------------------------------------
void Velocity::accept()
{
_rateVal = velo.rate->value();
_offsetVal = velo.offset->value();
MidiCmdDialog::accept();
}
//---------------------------------------------------------
// ModifyVelocityCmd
//---------------------------------------------------------
ModifyVelocityCmd::ModifyVelocityCmd(MidiEditor* e)
: MidiCmd(e)
{
dialog = 0;
}
//---------------------------------------------------------
// guiDialog
//---------------------------------------------------------
MidiCmdDialog* ModifyVelocityCmd::guiDialog()
{
if (dialog == 0)
dialog = new Velocity(0);
return dialog;
}
//---------------------------------------------------------
// process
//---------------------------------------------------------
void ModifyVelocityCmd::process(CItemList* items)
{
int rate = dialog->rateVal();
int offset = dialog->offsetVal();
for (iCItem k = items->begin(); k != items->end(); ++k) {
CItem* item = k->second;
Event event = item->event;
if (event.type() != Note)
continue;
if (itemInRange(item)) {
int velo = event.velo();
velo = (velo * rate) / 100;
velo += offset;
if (velo <= 0)
velo = 1;
if (velo > 127)
velo = 127;
if (event.velo() != velo) {
Event newEvent = event.clone();
newEvent.setVelo(velo);
audio->msgChangeEvent(event, newEvent, item->part, false);
}
}
}
}
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