subsurface/stats/statsseries.h
Berthold Stoeger 64b82b16a2 statistics: make selection keyboard modifiers more general
Up to now, we passed a "shiftPressed" flag to the individual
selection functions. To be more general replace by a struct
with "shift" and "ctrl" flags.

While doing this:
1) Move the struct into a new statsselection file for better
   encapsulation.
2) Change shift to control in the scatter series, since individual
   selection of items is usually done with control, not shift.
   Shift usually means "select range".

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2021-02-13 13:02:54 -08:00

37 lines
1.3 KiB
C++

// SPDX-License-Identifier: GPL-2.0
// Base class for all series. Defines a small virtual interface
// concerning highlighting of series items.
#ifndef STATS_SERIES_H
#define STATS_SERIES_H
#include "statsselection.h"
#include <vector>
#include <QPointF>
class StatsAxis;
class StatsView;
struct dive;
class QRectF;
class StatsSeries {
public:
StatsSeries(StatsView &view, StatsAxis *xAxis, StatsAxis *yAxis);
virtual ~StatsSeries();
virtual void updatePositions() = 0; // Called if chart geometry changes.
virtual bool hover(QPointF pos) = 0; // Called on mouse movement. Return true if an item of this series is highlighted.
virtual void unhighlight() = 0; // Unhighlight any highlighted item.
// Returns true if an item was under the mouse.
virtual bool selectItemsUnderMouse(const QPointF &pos, SelectionModifier modifier) = 0;
virtual bool supportsLassoSelection() const;
// Needs only be defined if supportsLassoSelection() returns true.
virtual void selectItemsInRect(const QRectF &rect, SelectionModifier modifier, const std::vector<dive *> &oldSelection);
virtual void divesSelected(const QVector<dive *> &dives) = 0;
protected:
StatsView &view;
StatsAxis *xAxis, *yAxis; // May be zero for charts without axes (pie charts).
QPointF toScreen(QPointF p);
};
#endif