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GPXSee/src/GUI/graphitem.h

69 lines
1.4 KiB
C++

#ifndef GRAPHITEM_H
#define GRAPHITEM_H
#include <QGraphicsObject>
#include <QPen>
#include "data/graph.h"
#include "units.h"
class GraphItem : public QGraphicsObject
{
Q_OBJECT
public:
GraphItem(const Graph &graph, GraphType type, QGraphicsItem *parent = 0);
virtual ~GraphItem() {}
QPainterPath shape() const {return _shape;}
QRectF boundingRect() const {return _shape.boundingRect();}
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
QWidget *widget);
const QRectF &bounds() const {return _bounds;}
void setScale(qreal sx, qreal sy);
void setGraphType(GraphType type);
int id() const {return _id;}
void setId(int id) {_id = id;}
void setColor(const QColor &color);
void setWidth(int width);
virtual void setUnits(Units units) {Q_UNUSED(units);}
qreal yAtX(qreal x);
qreal distanceAtTime(qreal time);
void redraw();
signals:
void sliderPositionChanged(qreal);
void selected(bool);
public slots:
void emitSliderPositionChanged(qreal);
void hover(bool hover);
private:
void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
void updatePath();
void updateShape();
void updateBounds();
int _id;
QPen _pen;
int _width;
Graph _graph;
GraphType _type;
QPainterPath _path;
QPainterPath _shape;
QRectF _bounds;
qreal _sx, _sy;
bool _time;
};
#endif // GRAPHITEM_H