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/* -*- c++ -*- */
/* + + + This Software is released under the "Simplified BSD License" + + +
* Copyright 2010 Moe Wheatley. All rights reserved.
* Copyright 2011-2013 Alexandru Csete OZ9AEC.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY Moe Wheatley ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Moe Wheatley OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of Moe Wheatley.
*/
#ifndef METER_H
#define METER_H
#include <QtGui>
#include <QFrame>
#include <QImage>
class CMeter : public QFrame
{
Q_OBJECT
public:
explicit CMeter(QWidget *parent = 0);
explicit CMeter(float min_level = -100.0, float max_level = 10.0, QWidget *parent = 0);
~CMeter();
QSize minimumSizeHint() const;
QSize sizeHint() const;
void setMin(float min_level);
void setMax(float max_level);
void setRange(float min_level, float max_level);
void draw();
void UpdateOverlay(){DrawOverlay();}
signals:
public slots:
void setLevel(float dbfs);
protected:
//re-implemented widget event handlers
void paintEvent(QPaintEvent *event);
void resizeEvent(QResizeEvent* event);
private:
void DrawOverlay();
QPixmap m_2DPixmap;
QPixmap m_OverlayPixmap;
QSize m_Size;
QString m_Str;
int m_Slevel;
int m_dBm;
float d_alpha_decay;
float d_alpha_rise;
};
#endif // METER_H
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