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Continue merging of scopemanager from Granjow
[kdenlive] / src / scopes / audioscopes / audiosignal.h
1 /***************************************************************************
2  *   Copyright (C) 2010 by Marco Gittler (g.marco@freenet.de)              *
3  *                                                                         *
4  *   This program is free software; you can redistribute it and/or modify  *
5  *   it under the terms of the GNU General Public License as published by  *
6  *   the Free Software Foundation; either version 2 of the License, or     *
7  *   (at your option) any later version.                                   *
8  *                                                                         *
9  *   This program is distributed in the hope that it will be useful,       *
10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
12  *   GNU General Public License for more details.                          *
13  *                                                                         *
14  *   You should have received a copy of the GNU General Public License     *
15  *   along with this program; if not, write to the                         *
16  *   Free Software Foundation, Inc.,                                       *
17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
18  ***************************************************************************/
19
20 #ifndef AUDIOSIGNAL_H
21 #define AUDIOSIGNAL_H
22
23 #include <QByteArray>
24 #include <QList>
25 #include <QColor>
26 #include <QTimer>
27 class QLabel;
28
29 #include  <QWidget>
30
31 #include <stdint.h>
32
33 class AudioSignal : public QWidget
34 {
35     Q_OBJECT
36 public:
37     AudioSignal(QWidget *parent = 0);
38     ~AudioSignal();
39     /** @brief Used for checking whether audio data needs to be delivered */
40     bool monitoringEnabled() const;
41
42 private:
43     double valueToPixel(double in);
44         QTimer m_timer;
45     QLabel* label;
46     QByteArray channels,peeks,peekage;
47         QList<int> dbscale;
48     QAction *m_aMonitoringEnabled;
49
50 protected:
51     void paintEvent(QPaintEvent*);
52
53 public slots:
54     void showAudio(const QByteArray);
55     void slotReceiveAudio(const QVector<int16_t>&,int,int,int);
56 private slots:
57      void slotSwitchAudioMonitoring(bool isOn);
58         void slotNoAudioTimeout();
59
60 signals:
61     void updateAudioMonitoring();
62
63 };
64
65 #endif