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//=============================================================================
// Awl
// Audio Widget Library
// $Id:$
//
// 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 "fastlog.h"
#include "midivolentry.h"
namespace Awl {
//---------------------------------------------------------
// MidiVolEntry
//---------------------------------------------------------
MidiVolEntry::MidiVolEntry(QWidget* parent)
: FloatEntry(parent)
{
_max = 127;
setRange(-98.0f, 0.0f);
setSpecialText(tr("off"));
setSuffix(tr("db"));
setFrame(true);
setPrecision(0);
}
//---------------------------------------------------------
// setValue
//---------------------------------------------------------
void MidiVolEntry::setValue(double v)
{
FloatEntry::setValue(-fast_log10(double(_max*_max)/(v*v))*20.0f);
}
}
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