b07a7fe5f1
The original plan to reuse the ChartPixmapItem for the scatteritems was dumped, because it is unclear if the textures are shared if generated for each item. Instead, a new ChartScatterItem was created, where all items share the same textures (one for highlighted, one for non-highlighted). This means that the rendering of the scatter items is now done in the chartitem.cpp file, which feels like a layering violation. Not good, but the easiest for now. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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// A small custom scatter series, where every item represents a dive
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// The original QScatterSeries was buggy and distinctly slower
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#ifndef SCATTER_SERIES_H
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#define SCATTER_SERIES_H
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#include "statsseries.h"
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#include <memory>
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#include <vector>
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class QGraphicsScene;
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class ChartScatterItem;
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struct InformationBox;
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struct StatsVariable;
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struct dive;
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class ScatterSeries : public StatsSeries {
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public:
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ScatterSeries(QGraphicsScene *scene, StatsView &view, StatsAxis *xAxis, StatsAxis *yAxis,
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const StatsVariable &varX, const StatsVariable &varY);
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~ScatterSeries();
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void updatePositions() override;
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bool hover(QPointF pos) override;
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void unhighlight() override;
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// Note: this expects that all items are added with increasing pos!
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void append(dive *d, double pos, double value);
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private:
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// Get items under mouse.
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std::vector<int> getItemsUnderMouse(const QPointF &f) const;
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struct Item {
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std::unique_ptr<ChartScatterItem> item;
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dive *d;
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double pos, value;
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Item(StatsView &view, ScatterSeries *series, dive *d, double pos, double value);
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void updatePosition(ScatterSeries *series);
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void highlight(bool highlight);
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};
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std::unique_ptr<InformationBox> information;
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std::vector<Item> items;
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std::vector<int> highlighted;
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const StatsVariable &varX;
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const StatsVariable &varY;
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};
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#endif
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