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--- geodisplay.h ---

#include "geodisplayarea.h"

class GeoDisplay : public QWidget
{
public:
    GeoDisplay();
private:
    GeoDisplayArea *disp;
};



--- geodisplayarea.h ---

//#include "geodisplay.h"

class GeoDisplayArea : public QWidget
{
Q_OBJECT
public:
    GeoDisplayArea();

protected:
    void paintEvent(QPaintEvent *event);
};