added waveform

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
+