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/*
* Fader.h - fader-widget used in FX-mixer - partly taken from Hydrogen
*
* Copyright (c) 2008-2012 Tobias Doerffel <tobydox/at/users.sourceforge.net>
*
* This file is part of LMMS - https://lmms.io
*
* 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.
*
* 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 (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
/*
* Hydrogen
* Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
*
* http://www.hydrogen-music.org
*
* 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.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef FADER_H
#define FADER_H
#include <QtCore/QTime>
#include <QWidget>
#include <QPixmap>
#include "AutomatableModelView.h"
class TextFloat;
class EXPORT Fader : public QWidget, public FloatModelView
{
Q_OBJECT
public:
Q_PROPERTY( QColor peakGreen READ peakGreen WRITE setPeakGreen )
Q_PROPERTY( QColor peakRed READ peakRed WRITE setPeakRed )
Q_PROPERTY( QColor peakYellow READ peakYellow WRITE setPeakYellow )
Q_PROPERTY( bool levelsDisplayedInDBFS READ getLevelsDisplayedInDBFS WRITE setLevelsDisplayedInDBFS )
Fader( FloatModel * _model, const QString & _name, QWidget * _parent );
Fader( FloatModel * _model, const QString & _name, QWidget * _parent, QPixmap * back, QPixmap * leds, QPixmap * knob );
virtual ~Fader();
void init(FloatModel * model, QString const & name);
void setPeak_L( float fPeak );
float getPeak_L() { return m_fPeakValue_L; }
void setPeak_R( float fPeak );
float getPeak_R() { return m_fPeakValue_R; }
inline float getMinPeak() const { return m_fMinPeak; }
inline void setMinPeak(float minPeak) { m_fMinPeak = minPeak; }
inline float getMaxPeak() const { return m_fMaxPeak; }
inline void setMaxPeak(float maxPeak) { m_fMaxPeak = maxPeak; }
QColor const & peakGreen() const;
void setPeakGreen( const QColor & c );
QColor const & peakRed() const;
void setPeakRed( const QColor & c );
QColor const & peakYellow() const;
void setPeakYellow( const QColor & c );
inline bool getLevelsDisplayedInDBFS() const { return m_levelsDisplayedInDBFS; }
inline void setLevelsDisplayedInDBFS(bool value = true) { m_levelsDisplayedInDBFS = value; }
void setDisplayConversion( bool b )
{
m_displayConversion = b;
}
inline void setHintText( const QString & _txt_before,
const QString & _txt_after )
{
setDescription( _txt_before );
setUnit( _txt_after );
}
private:
virtual void contextMenuEvent( QContextMenuEvent * _me );
virtual void mousePressEvent( QMouseEvent *ev );
virtual void mouseDoubleClickEvent( QMouseEvent* mouseEvent );
virtual void mouseMoveEvent( QMouseEvent *ev );
virtual void mouseReleaseEvent( QMouseEvent * _me );
virtual void wheelEvent( QWheelEvent *ev );
virtual void paintEvent( QPaintEvent *ev );
inline bool clips(float const & value) const { return value >= 1.0f; }
void paintDBFSLevels(QPaintEvent *ev, QPainter & painter);
void paintLinearLevels(QPaintEvent *ev, QPainter & painter);
int knobPosY() const
{
float fRange = model()->maxValue() - model()->minValue();
float realVal = model()->value() - model()->minValue();
return height() - ( ( height() - m_knob->height() ) * ( realVal / fRange ) );
}
void setPeak( float fPeak, float &targetPeak, float &persistentPeak, QTime &lastPeakTime );
int calculateDisplayPeak( float fPeak );
void updateTextFloat();
// Private members
private:
float m_fPeakValue_L;
float m_fPeakValue_R;
float m_persistentPeak_L;
float m_persistentPeak_R;
float m_fMinPeak;
float m_fMaxPeak;
QTime m_lastPeakTime_L;
QTime m_lastPeakTime_R;
static QPixmap * s_back;
static QPixmap * s_leds;
static QPixmap * s_knob;
QPixmap * m_back;
QPixmap * m_leds;
QPixmap * m_knob;
bool m_displayConversion;
bool m_levelsDisplayedInDBFS;
int m_moveStartPoint;
float m_startValue;
static TextFloat * s_textFloat;
QColor m_peakGreen;
QColor m_peakRed;
QColor m_peakYellow;
} ;
#endif
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