Diffstat (limited to 'noncore/multimedia/opierec/waveform.h') (more/less context) (ignore whitespace changes)
-rw-r--r-- | noncore/multimedia/opierec/waveform.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/noncore/multimedia/opierec/waveform.h b/noncore/multimedia/opierec/waveform.h new file mode 100644 index 0000000..b9a4c70 --- a/dev/null +++ b/noncore/multimedia/opierec/waveform.h @@ -0,0 +1,63 @@ +/********************************************************************** +** Copyright (C) 2000-2002 Trolltech AS. All rights reserved. +** +** This file is part of the Qtopia Environment. +** +** This file may be distributed and/or modified under the terms of the +** GNU General Public License version 2 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. +** +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +** See http://www.trolltech.com/gpl/ for GPL licensing information. +** +** Contact info@trolltech.com if any conditions of this licensing are +** not clear to you. +** +**********************************************************************/ +#ifndef WAVEFORM_H +#define WAVEFORM_H + +#include <qwidget.h> +#include <qpixmap.h> + + +class QLabel; + + +class Waveform : public QWidget +{ +public: + Waveform( QWidget *parent=0, const char *name=0, WFlags fl=0 ); + ~Waveform(); + +public: + void changeSettings( int frequency, int channels ); + void reset(); + void newSamples( const short *buf, int len ); + +private: + + void makePixmap(); + void draw(); + +protected: + + void paintEvent( QPaintEvent *event ); + +private: + int samplesPerPixel; + int currentValue; + int numSamples; + short *window; + int windowPosn; + int windowSize; + QPixmap *pixmap; + +}; + + +#endif + |