Add files from zip

examples/polarspectrogram/PlotWindow.h

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+/*****************************************************************************
+ * Qwt Polar Examples - Copyright (C) 2008   Uwe Rathmann
+ * This file may be used under the terms of the 3-clause BSD License
+ *****************************************************************************/
+
+#pragma once
+
+#include <QWidget>
+
+class Plot;
+class QwtScaleWidget;
+
+class PlotWindow : public QWidget
+{
+  public:
+    PlotWindow( QWidget* = NULL );
+
+    Plot* plot() { return m_plot; }
+
+  private:
+    Plot* m_plot;
+    QwtScaleWidget* m_colorScale;
+};