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#ifndef PIESERIES_H
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#define PIESERIES_H
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#include "qchartseries.h"
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#include <QObject>
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#include <QRectF>
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#include <QColor>
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#include <QPen>
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#include <QBrush>
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class QGraphicsObject;
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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class PiePresenter;
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class PieSlice;
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typedef quint64 QPieSliceId;
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class QPieSlice
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{
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public:
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QPieSlice()
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:m_id(-1), m_value(0), m_isLabelVisible(true), m_isExploded(false), m_percentage(0) {}
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QPieSlice(qreal value, QString label = QString(), bool labelVisible = true, bool exploded = false, QPen pen = QPen(), QBrush brush = QBrush())
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:m_id(-1), m_value(value), m_label(label), m_isLabelVisible(labelVisible), m_isExploded(exploded), m_pen(pen), m_brush(brush), m_percentage(0) {}
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QPieSliceId id() const { return m_id; }
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void setValue(qreal value) { m_value = value; }
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qreal value() const { return m_value; }
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void setLabel(QString label) { m_label = label; }
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QString label() const { return m_label; }
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void setLabelVisible(bool visible) { m_isLabelVisible = visible; }
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bool isLabelVisible() const { return m_isLabelVisible; }
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void setExploded(bool exploded) { m_isExploded = exploded; }
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bool isExploded() const { return m_isExploded; }
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void setPen(QPen pen) { m_pen = pen; }
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QPen pen() const { return m_pen; }
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void setBrush(QBrush brush) { m_brush = brush; }
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QBrush brush() const { return m_brush; }
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qreal percentage() const { return m_percentage; }
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private:
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// TODO: use private class
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friend class QPieSeries;
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QPieSliceId m_id;
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qreal m_value;
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QString m_label;
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bool m_isLabelVisible;
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bool m_isExploded;
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QPen m_pen;
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QBrush m_brush;
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qreal m_percentage; // generated content
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};
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class QTCOMMERCIALCHART_EXPORT QPieSeries : public QChartSeries
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{
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Q_OBJECT
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public:
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enum PiePosition {
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PiePositionMaximized = 0,
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PiePositionTopLeft,
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PiePositionTopRight,
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PiePositionBottomLeft,
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PiePositionBottomRight
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};
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class ChangeSet
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{
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public:
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QList<QPieSliceId> m_added;
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QList<QPieSliceId> m_removed;
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QList<QPieSliceId> m_changed;
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};
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public:
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QPieSeries(QObject *parent = 0);
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~QPieSeries();
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public: // from QChartSeries
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QChartSeriesType type() const { return QChartSeries::SeriesTypePie; }
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virtual bool setData(QList<qreal> data); // TODO: remove this
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public:
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// TODO: should we return id/bool or what?
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// TODO: should we prefer passing a modifiable reference?
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bool set(const QList<QPieSlice>& slices);
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bool add(const QList<QPieSlice>& slices);
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bool add(const QPieSlice& slice);
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bool update(const QPieSlice& slice);
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bool remove(QPieSliceId id);
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int count() const { return m_slices.count(); }
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QList<QPieSlice> slices() const { return m_slices.values(); }
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QList<QPieSliceId> ids() const { return m_slices.keys(); }
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QPieSlice slice(QPieSliceId id) const;
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// TODO: sorting?
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// TODO: convenience functions
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//void updateValue(int sliceIndex, qreal value);
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//void updateLabel(int sliceIndex, QString label);
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//void updateColor(int sliceIndex, QColor color);
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//void updateExploded(int slizeIndex, bool exploded);
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// TODO: customization
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// set/get pen/brush
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// - for label
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// - for whole pie/slice
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void setSizeFactor(qreal sizeFactor);
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qreal sizeFactor() const { return m_sizeFactor; }
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void setPosition(PiePosition position);
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PiePosition position() const { return m_position; }
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Q_SIGNALS:
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void changed(const QPieSeries::ChangeSet& changeSet);
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void sizeFactorChanged();
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void positionChanged();
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//void sliceClicked(QPieSliceId id);
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//void sliceHoverEnter(QPieSliceId id);
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//void sliceHoverLeave(QPieSliceId id);
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private:
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QPieSliceId generateSliceId();
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void updateDerivativeData();
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private:
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Q_DISABLE_COPY(QPieSeries)
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// TODO: use PIML
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friend class PiePresenter;
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friend class PieSlice;
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QHash<QPieSliceId, QPieSlice> m_slices;
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qreal m_sizeFactor;
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PiePosition m_position;
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qreal m_total;
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QPieSliceId m_sliceIdSeed;
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};
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QTCOMMERCIALCHART_END_NAMESPACE
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#endif // PIESERIES_H
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