HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · src/piechart/piechartitem_p.h

Adaptive layout to legend. Tries to fit all items inside given maximum size

Jani Honkonen - - Load All Authors

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             piechartitem_p.h
        
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      #ifndef PIECHARTITEM_H

      #define PIECHARTITEM_H

      #include "qpieseries.h"

      #include "chartitem_p.h"

      #include "pieslice_p.h"

      class QGraphicsItem;

      QTCOMMERCIALCHART_BEGIN_NAMESPACE

      class QPieSlice;

      class PieChartItem : public QObject, public ChartItem

      {

          Q_OBJECT

      public:

          // TODO: use a generic data class instead of x and y

          PieChartItem(QGraphicsItem *parent, QPieSeries *series);

          ~PieChartItem();

      public: // from QGraphicsItem

          QRectF boundingRect() const { return m_rect; }

          void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);

      public Q_SLOTS:

          void initialize();

          void handleSlicesAdded(QList<QPieSlice*> slices);

          void handleSlicesRemoved(QList<QPieSlice*> slices);

          void handlePieLayoutChanged();

          void handleSliceChanged();

          void handleDomainChanged(qreal, qreal, qreal, qreal);

          void handleGeometryChanged(const QRectF& rect);

      public:

          void calculatePieLayout();

          PieSliceLayout calculateSliceLayout(QPieSlice *slice);

          QVector<PieSliceLayout> calculateLayout();

          void applyLayout(QVector<PieSliceLayout> &layout);

          void updateLayout(PieSliceLayout &layout);

          void setLayout(QVector<PieSliceLayout> &layout);

          void setLayout(PieSliceLayout &layout);

          void destroySlice(QPieSlice *slice);

      private:

          friend class PieSlice;

          QHash<QPieSlice*, PieSlice*> m_slices;

          QPieSeries *m_series;

          QRectF m_rect;

          QPointF m_pieCenter;

          qreal m_pieRadius;

          QRectF m_debugRect;

      };

      QTCOMMERCIALCHART_END_NAMESPACE

      #endif // PIECHARTITEM_H

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				#ifndef PIECHARTITEM_H
				#define PIECHARTITEM_H

				#include "qpieseries.h"
				#include "chartitem_p.h"
				#include "pieslice_p.h"

				class QGraphicsItem;
				QTCOMMERCIALCHART_BEGIN_NAMESPACE
				class QPieSlice;

				class PieChartItem : public QObject, public ChartItem
				{
				Q_OBJECT

				public:
				// TODO: use a generic data class instead of x and y
				PieChartItem(QGraphicsItem parent, QPieSeries series);
				~PieChartItem();

				public: // from QGraphicsItem
				QRectF boundingRect() const { return m_rect; }
				void paint(QPainter , const QStyleOptionGraphicsItem , QWidget *);

				public Q_SLOTS:
				void initialize();
				void handleSlicesAdded(QList<QPieSlice*> slices);
				void handleSlicesRemoved(QList<QPieSlice*> slices);
				void handlePieLayoutChanged();
				void handleSliceChanged();
				void handleDomainChanged(qreal, qreal, qreal, qreal);
				void handleGeometryChanged(const QRectF& rect);

				public:
				void calculatePieLayout();
				PieSliceLayout calculateSliceLayout(QPieSlice *slice);
				QVector<PieSliceLayout> calculateLayout();
				void applyLayout(QVector<PieSliceLayout> &layout);
				void updateLayout(PieSliceLayout &layout);
				void setLayout(QVector<PieSliceLayout> &layout);
				void setLayout(PieSliceLayout &layout);
				void destroySlice(QPieSlice *slice);

				private:
				friend class PieSlice;
				QHash<QPieSlice, PieSlice> m_slices;
				QPieSeries *m_series;
				QRectF m_rect;
				QPointF m_pieCenter;
				qreal m_pieRadius;
				QRectF m_debugRect;
				};

				QTCOMMERCIALCHART_END_NAMESPACE

				#endif // PIECHARTITEM_H