Entropy Piano Tuner  1.1.3 (documentation not yet complete)
An open-source experimental software for piano tuning by entropy minimization
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volumecontrollevel.h
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1 /*****************************************************************************
2  * Copyright 2015 Haye Hinrichsen, Christoph Wick
3  *
4  * This file is part of Entropy Piano Tuner.
5  *
6  * Entropy Piano Tuner is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by the
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16  * You should have received a copy of the GNU General Public License along with
17  * Entropy Piano Tuner. If not, see http://www.gnu.org/licenses/.
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19 
20 #ifndef VOLUMECONTROLLEVEL_H
21 #define VOLUMECONTROLLEVEL_H
22 
23 #include <QProgressBar>
24 #include <QTimer>
25 #include "../core/adapters/recorderlevel.h"
26 
34 class VolumeControlLevel : public QProgressBar, public RecorderLevel
35 {
36  Q_OBJECT
37 public:
43  explicit VolumeControlLevel(QWidget *parent);
44 
49  virtual ~VolumeControlLevel();
50 
51 protected:
58  void levelChanged(double value) override;
59 
60 private slots:
66  void updateValue();
67 private:
72  QTimer mUpdateTimer;
73 
79  double mValueBuffer;
80 };
81 
82 #endif // VOLUMECONTROLLEVEL_H
QTimer mUpdateTimer
The timer that will handle the update of the QProgressBar.
double mValueBuffer
The buffered value.
VolumeControlLevel(QWidget *parent)
Default constructor.
void levelChanged(double value) override
Function that is called when the level has changed.
void updateValue()
Update the displayed value with the mValueBuffer.
virtual ~VolumeControlLevel()
Empty virtual destructor.
Adapter for displaying the recording level (VU meter)
Definition: recorderlevel.h:38
QProgressBar to display the current input level.