first re-commit.

swspectrumwidget.h

@@ -0,0 +1,56 @@
+/***************************************************************************
+
+    source::worx raDIYo
+    Copyright © 2020-2022 c.holzheuer
+    chris@sourceworx.org
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+***************************************************************************/
+
+
+#ifndef SWSPECTRUMWIDGET_H
+#define SWSPECTRUMWIDGET_H
+
+#include <QTimer>
+#include <swbarwidget.h>
+
+
+/**
+ * @brief Stellt das per FFT erzeugte Spektrum dar
+ */
+
+class SWSpectrumWidget : public SWBarWidget
+{
+    Q_OBJECT
+
+public:
+
+    explicit SWSpectrumWidget( QWidget* parent = nullptr );
+    virtual ~SWSpectrumWidget();
+
+    void paintEvent( QPaintEvent* event ) override;
+    void clearValueList();
+
+public slots:
+
+    void onValueListChanged( const SWValVec& freshdata );
+
+signals:
+
+protected:
+
+
+    // Brainfuck!
+    double  _minValue   = 0.0;
+    double  _maxValue   = 1.0;
+
+    SWValVec _valueList;
+
+};
+
+
+#endif // SWSPECTRUMWIDGET_H