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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
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.
*/
#ifndef FADER_H
#define FADER_H
/**
* Horizontal audio fader and meter widget.
* Based on the vertical fader and meter widget from:
*
* Hydrogen
* Copyright(c) 2002-2005 by Alex >Comix< Cominu [comix@users.sourceforge.net]
* http://www.hydrogen-music.org
*/
#include <string>
#include <iostream>
#include <QWidget>
#include <QPixmap>
#include <QMouseEvent>
#include <QWheelEvent>
#include <QPaintEvent>
#include "base/Debug.h"
namespace sv {
class Fader : public QWidget
{
Q_OBJECT
public:
Fader(QWidget *parent, bool withoutKnob = false);
~Fader();
void setValue(float newValue);
float getValue();
void setPeakLeft(float);
float getPeakLeft() { return m_peakLeft; }
void setPeakRight(float);
float getPeakRight() { return m_peakRight; }
signals:
void valueChanged(float); // 0.0 -> 1.0
void mouseEntered();
void mouseLeft();
protected:
void mousePressEvent(QMouseEvent *ev) override;
void mouseDoubleClickEvent(QMouseEvent *ev) override;
void mouseMoveEvent(QMouseEvent *ev) override;
void mouseReleaseEvent(QMouseEvent *ev) override;
void wheelEvent( QWheelEvent *ev ) override;
void paintEvent(QPaintEvent *ev) override;
void enterEvent(QEnterEvent *) override;
void leaveEvent(QEvent *) override;
int getMaxX() const;
bool m_withoutKnob;
float m_value;
float m_peakLeft;
float m_peakRight;
bool m_mousePressed;
int m_mousePressX;
float m_mousePressValue;
QPixmap m_back;
QPixmap m_leds;
QPixmap m_knob;
QPixmap m_clip;
};
}
#endif
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