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/**********************************************************************
** 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
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