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qpieseries.h
133 lines | 3.1 KiB | text/x-c | CLexer
Jani Honkonen
Pie chart refactoring
r142 #ifndef PIESERIES_H
#define PIESERIES_H
#include "qchartseries.h"
#include <QObject>
#include <QRectF>
#include <QColor>
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r174 #include <QPen>
#include <QBrush>
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r203 #include <QSignalMapper>
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r142
class QGraphicsObject;
QTCOMMERCIALCHART_BEGIN_NAMESPACE
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r146 class PiePresenter;
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r142 class PieSlice;
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r203 class QPieSlice;
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r157
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r142 class QTCOMMERCIALCHART_EXPORT QPieSeries : public QChartSeries
{
Q_OBJECT
public:
enum PiePosition {
PiePositionMaximized = 0,
PiePositionTopLeft,
PiePositionTopRight,
PiePositionBottomLeft,
PiePositionBottomRight
};
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r174 class ChangeSet
{
public:
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r314
// TODO: these should not really be exposed to the public API
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r203 void appendAdded(QPieSlice* slice);
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r289 void appendAdded(QList<QPieSlice*> slices);
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r203 void appendChanged(QPieSlice* slice);
void appendRemoved(QPieSlice* slice);
QList<QPieSlice*> added() const;
QList<QPieSlice*> changed() const;
QList<QPieSlice*> removed() const;
bool isEmpty() const;
private:
QList<QPieSlice*> m_added;
QList<QPieSlice*> m_changed;
QList<QPieSlice*> m_removed;
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r174 };
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r142 public:
QPieSeries(QObject *parent = 0);
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r203 virtual ~QPieSeries();
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Pie chart refactoring
r142
public: // from QChartSeries
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r314 QChartSeriesType type() const;
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Refactoring piechart API (and internals)
r174 virtual bool setData(QList<qreal> data); // TODO: remove this
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r142
public:
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
r203 void set(QList<QPieSlice*> slices);
void add(QList<QPieSlice*> slices);
void add(QPieSlice* slice);
QPieSlice* add(qreal value, QString name);
void remove(QPieSlice* slice);
void clear();
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Pie chart refactoring
r142
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r314 int count() const;
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r142
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r314 QList<QPieSlice*> slices() const;
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Refactoring piechart API (and internals)
r174
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Pie chart refactoring
r142 void setSizeFactor(qreal sizeFactor);
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r314 qreal sizeFactor() const;
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r142
void setPosition(PiePosition position);
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r314 PiePosition position() const;
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r142
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r314 void setSpan(qreal startAngle, qreal angleSpan);
Jani Honkonen
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r203
void setLabelsVisible(bool visible);
void enableClickExplodes(bool enable);
void enableHoverHighlight(bool enable);
Jani Honkonen
Make pie fit better inside its given rectangle. Label texts still go outside. Needs a bit more work...
r289 // TODO: find slices?
// QList<QPieSlice*> findByValue(qreal value);
// ...
// TODO: sorting slices?
// void sort(QPieSeries::SortByValue|label|??)
// TODO: general graphics customization
// setDrawStyle(2d|3d)
// setDropShadows(bool)
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r157 Q_SIGNALS:
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r174 void changed(const QPieSeries::ChangeSet& changeSet);
Jani Honkonen
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r203 void clicked(QPieSlice* slice);
void hoverEnter(QPieSlice* slice);
void hoverLeave(QPieSlice* slice);
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r157 void sizeFactorChanged();
void positionChanged();
Jani Honkonen
Implementing slice label
r181
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r289 private Q_SLOTS: // TODO: should be private and not visible in the interface at all
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r203 void sliceChanged();
void sliceClicked();
void sliceHoverEnter();
void sliceHoverLeave();
void toggleExploded(QPieSlice* slice);
void highlightOn(QPieSlice* slice);
void highlightOff(QPieSlice* slice);
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Refactoring piechart API (and internals)
r174
private:
void updateDerivativeData();
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r157
Jani Honkonen
Pie chart refactoring
r142 private:
Q_DISABLE_COPY(QPieSeries)
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r174
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r142 // TODO: use PIML
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r174 friend class PiePresenter;
friend class PieSlice;
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r203 QList<QPieSlice*> m_slices;
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r142 qreal m_sizeFactor;
PiePosition m_position;
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r174 qreal m_total;
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r203 qreal m_pieStartAngle;
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r314 qreal m_pieAngleSpan;
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r142 };
QTCOMMERCIALCHART_END_NAMESPACE
#endif // PIESERIES_H