Oscilloscope.h

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/*
 * Oscilloscope.h
 *
 * Copyright (c) 2005-2008 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.
 *
 */
 
#ifndef LMMS_GUI_OSCILLOSCOPE_H
#define LMMS_GUI_OSCILLOSCOPE_H
 
#include <QWidget>
#include <QPixmap>
 
#include "LmmsTypes.h"
 
namespace lmms
{
 
class SampleFrame;
 
}
 
namespace lmms::gui
{
 
 
class Oscilloscope : public QWidget
{
    Q_OBJECT
public:
    Q_PROPERTY( QColor leftChannelColor READ leftChannelColor WRITE setLeftChannelColor )
    Q_PROPERTY( QColor rightChannelColor READ rightChannelColor WRITE setRightChannelColor )
    Q_PROPERTY( QColor otherChannelsColor READ otherChannelsColor WRITE setOtherChannelsColor )
    Q_PROPERTY( QColor clippingColor READ clippingColor WRITE setClippingColor )
 
    Oscilloscope( QWidget * _parent );
    ~Oscilloscope() override;
 
    void setActive( bool _active );
 
    QColor const & leftChannelColor() const;
    void setLeftChannelColor(QColor const & leftChannelColor);
 
    QColor const & rightChannelColor() const;
    void setRightChannelColor(QColor const & rightChannelColor);
 
    QColor const & otherChannelsColor() const;
    void setOtherChannelsColor(QColor const & otherChannelsColor);
 
    QColor const & clippingColor() const;
    void setClippingColor(QColor const & clippingColor);
 
 
protected:
    void paintEvent( QPaintEvent * _pe ) override;
    void mousePressEvent( QMouseEvent * _me ) override;
 
 
protected slots:
    void updateAudioBuffer(const lmms::SampleFrame* buffer);
 
private:
    bool clips(float level) const;
 
private:
    QPixmap m_background;
    QPointF * m_points;
 
    SampleFrame* m_buffer;
    bool m_active;
 
    QColor m_leftChannelColor;
    QColor m_rightChannelColor;
    QColor m_otherChannelsColor;
    QColor m_clippingColor;
} ;
 
 
} // namespace lmms::gui
 
#endif // LMMS_GUI_OSCILLOSCOPE_H