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examples/polardemo/Plot.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 <QwtPolarPlot>
+
+class QwtPolarGrid;
+class QwtPolarCurve;
+
+class PlotSettings
+{
+  public:
+    enum Curve
+    {
+        Spiral,
+        Rose,
+
+        NumCurves
+    };
+
+    enum Flag
+    {
+        MajorGridBegin,
+        MinorGridBegin = MajorGridBegin + QwtPolar::ScaleCount,
+        AxisBegin = MinorGridBegin + QwtPolar::ScaleCount,
+
+        AutoScaling = AxisBegin + QwtPolar::AxesCount,
+        Inverted,
+        Logarithmic,
+
+        Antialiasing,
+
+        CurveBegin,
+
+        NumFlags = CurveBegin + NumCurves
+    };
+
+    bool flags[NumFlags];
+};
+
+class Plot : public QwtPolarPlot
+{
+    Q_OBJECT
+
+  public:
+    Plot( QWidget* = NULL );
+    PlotSettings settings() const;
+
+  public Q_SLOTS:
+    void applySettings( const PlotSettings& );
+
+  private:
+    QwtPolarCurve* createCurve( int id ) const;
+
+    QwtPolarGrid* m_grid;
+    QwtPolarCurve* m_curve[PlotSettings::NumCurves];
+};