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// SPDX-License-Identifier: GPL-2.0
// A pie chart series, which displays percentual information.
#ifndef PIE_SERIES_H
#define PIE_SERIES_H
#include "statshelper.h"
#include "statsseries.h"
#include <memory>
#include <vector>
#include <QString>
struct dive;
struct InformationBox;
struct ChartPieItem;
struct ChartTextItem;
class QRectF;
class PieSeries : public StatsSeries {
public:
// The pie series is initialized with (name, count) pairs.
// If keepOrder is false, bins will be sorted by size, otherwise the sorting
// of the shown bins will be retained. Small bins are omitted for clarity.
PieSeries(StatsView &view, StatsAxis *xAxis, StatsAxis *yAxis, const QString &categoryName,
std::vector<std::pair<QString, std::vector<dive *>>> data, bool keepOrder);
~PieSeries();
void updatePositions() override;
bool hover(QPointF pos) override;
void unhighlight() override;
bool selectItemsUnderMouse(const QPointF &point, SelectionModifier modifier) override;
std::vector<QString> binNames();
private:
// Get item under mouse pointer, or -1 if none
int getItemUnderMouse(const QPointF &f) const;
ChartItemPtr<ChartPieItem> item;
QString categoryName;
std::vector<QString> makeInfo(int idx) const;
struct Item {
ChartItemPtr<ChartTextItem> innerLabel, outerLabel;
QString name;
double angleFrom, angleTo; // In fraction of total
std::vector<dive *> dives;
QPointF innerLabelPos, outerLabelPos; // With respect to a (-1, -1)-(1, 1) rectangle.
bool selected;
Item(StatsView &view, const QString &name, int from, std::vector<dive *> dives, int totalCount,
int bin_nr, int numBins);
void updatePositions(const QPointF ¢er, double radius);
void highlight(ChartPieItem &item, int bin_nr, bool highlight, int numBins);
};
std::vector<Item> items;
int totalCount;
// Entries in the "other" group. If empty, there is no "other" group.
struct OtherItem {
QString name;
int count;
};
std::vector<OtherItem> other;
ChartItemPtr<InformationBox> information;
QPointF center; // center of drawing area
double radius; // radius of pie
int highlighted; // -1: no item highlighted
int lastClicked; // -1: no item clicked
void divesSelected(const QVector<dive *> &) override;
};
#endif
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