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#ifndef QLEGEND_H
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#define QLEGEND_H
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#include "qchartglobal.h"
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#include "qseries.h"
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#include <QGraphicsObject>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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class Domain;
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class LegendMarker;
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class QPieSlice;
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class QXYSeries;
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class QBarSet;
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class QBarSeries;
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class QPieSeries;
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class QTCOMMERCIALCHART_EXPORT QLegend : public QGraphicsObject
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{
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Q_OBJECT
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public:
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enum PreferredLayout {
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PreferredLayoutHorizontal,
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PreferredLayoutVertical
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};
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explicit QLegend(QGraphicsItem *parent = 0);
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
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QRectF boundingRect() const;
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void setBackgroundBrush(const QBrush& brush);
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QBrush backgroundBrush() const;
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void setPreferredLayout(QLegend::PreferredLayout preferred);
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QSizeF minimumSize() const;
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void setMinimumSize(const QSizeF size);
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QSizeF maximumSize() const;
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void setMaximumSize(const QSizeF size);
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signals:
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// for interactions.
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void clicked(QSeries* series, Qt::MouseButton button);
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void clicked(QBarSet* barset, Qt::MouseButton button);
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void clicked(QPieSlice* slice, Qt::MouseButton button);
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public slots:
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void handleSeriesAdded(QSeries* series,Domain* domain);
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void handleSeriesRemoved(QSeries* series);
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void handleGeometryChanged(const QRectF& size);
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private:
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// PIMPL --->
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void createMarkers(QSeries* series);
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void appendMarkers(QXYSeries* series);
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void appendMarkers(QBarSeries* series);
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void appendMarkers(QPieSeries* series);
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void deleteMarkers(QSeries* series);
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void layoutChanged(); // TODO: rename this to layoutChanged and remove original layoutChanged, when ready
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// <--- PIMPL
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QRectF mBoundingRect;
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QList<QSeries*> mSeriesList;
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QList<LegendMarker*> mMarkers;
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QBrush mBackgroundBrush;
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QSizeF mMinimumSize;
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QSizeF mMaximumSize;
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QLegend::PreferredLayout mPreferredLayout;
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};
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QTCOMMERCIALCHART_END_NAMESPACE
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#endif // QLEGEND_H
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