PieChartView.h++

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#ifndef __libquark_chart_PieChartView_hxx
#define __libquark_chart_PieChartView_hxx

#include <QVarLengthArray>

#include <quark/ChartView.h++>

namespace quark {
namespace chart {

class LIBQUARK_API PieChartView : public ChartView
{
  public:

  PieChartView(QWidget *parent = NULL);
  virtual ~PieChartView();

  void setPieDepth(int pieDepth);
  int pieDepth() const
  { return(_pieDepth); }

  void setPieWidth(int pieWidth);
  int pieWidth() const
  { return(_pieWidth); }

  void setPieHeight(int pieHeight);
  int pieHeight() const
  { return(_pieHeight); }

  void setDrawsLabels(bool drawsLabels);
  bool drawsLabels() const
  { return(_drawsLabels); }

  protected:

  virtual void paintEvent(QPaintEvent *event);

  virtual bool hasScale() const
  { return(false); }

  virtual void dataChanged();

  private:

  void recalculateValues();

  qreal _aspectRatio;
  int _pieDepth;
  int _pieWidth;
  int _pieHeight;
  int _centerX;
  int _centerY;
  int _radiusX;
  int _radiusY;
  bool _drawsLabels;
  QVarLengthArray<qreal> _slices;
  qreal _total;

  Q_DISABLE_COPY(PieChartView);
};

} // namespace chart
} // namespace quark

#endif // __libquark_chart_PieChartView_hxx