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To enable rudimentary theming, collect all colors in a new theme class. The class has to be passed down to the various items. In general the items save a reference to the them in the constructor. Alternatively, they might also just query the StatsView everytime they need to access a color. For now, it's hard the say what is preferred: a reference per item or a function call per invokation? Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
39 lines
1.4 KiB
C++
39 lines
1.4 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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// Base class for all series. Defines a small virtual interface
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// concerning highlighting of series items.
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#ifndef STATS_SERIES_H
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#define STATS_SERIES_H
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#include "statsselection.h"
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#include <vector>
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#include <QPointF>
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class StatsAxis;
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class StatsTheme;
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class StatsView;
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struct dive;
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class QRectF;
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class StatsSeries {
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public:
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StatsSeries(StatsView &view, StatsAxis *xAxis, StatsAxis *yAxis);
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virtual ~StatsSeries();
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virtual void updatePositions() = 0; // Called if chart geometry changes.
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virtual bool hover(QPointF pos) = 0; // Called on mouse movement. Return true if an item of this series is highlighted.
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virtual void unhighlight() = 0; // Unhighlight any highlighted item.
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// Returns true if an item was under the mouse.
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virtual bool selectItemsUnderMouse(const QPointF &pos, SelectionModifier modifier) = 0;
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virtual bool supportsLassoSelection() const;
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// Needs only be defined if supportsLassoSelection() returns true.
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virtual void selectItemsInRect(const QRectF &rect, SelectionModifier modifier, const std::vector<dive *> &oldSelection);
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virtual void divesSelected(const QVector<dive *> &dives) = 0;
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protected:
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StatsView &view;
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const StatsTheme &theme; // Theme is only set once in the constructor
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StatsAxis *xAxis, *yAxis; // May be zero for charts without axes (pie charts).
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QPointF toScreen(QPointF p);
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};
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#endif
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