subsurface/qt-ui/profile/ruleritem.h
Tomaz Canabrava 6dec4b0556 Fix a crash on changing dives when the ruler is used.
The ruler is a weird beast - it has two child objects that access the
parent to call another function, that call the child functions.

When I updated the plot_info I didn't take that into consideration, what
happened is that when I set the parent's plot_info, the children's
plot_info are still invalid, but the update method is called anyhow.

This patch updates all plot_info's before calling anything else.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2014-03-07 08:53:14 -08:00

59 lines
No EOL
1.3 KiB
C++

#ifndef RULERITEM_H
#define RULERITEM_H
#include <QObject>
#include <QGraphicsEllipseItem>
#include <QGraphicsObject>
#include "divecartesianaxis.h"
#include "display.h"
struct plot_data;
class RulerItem2;
class RulerNodeItem2 : public QObject, public QGraphicsEllipseItem {
Q_OBJECT
friend class RulerItem2;
public:
explicit RulerNodeItem2();
void setRuler(RulerItem2 *r);
void setPlotInfo(struct plot_info& info);
void recalculate();
protected:
QVariant itemChange(GraphicsItemChange change, const QVariant &value);
private:
struct plot_info pInfo;
struct plot_data *entry;
RulerItem2 *ruler;
DiveCartesianAxis *timeAxis;
DiveCartesianAxis *depthAxis;
};
class RulerItem2 : public QGraphicsObject {
Q_OBJECT
public:
explicit RulerItem2();
void recalculate();
void setPlotInfo(struct plot_info pInfo);
RulerNodeItem2 *sourceNode() const;
RulerNodeItem2 *destNode() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
QRectF boundingRect() const;
QPainterPath shape() const;
void setAxis(DiveCartesianAxis *time, DiveCartesianAxis *depth);
private:
struct plot_info pInfo;
QPointF startPoint, endPoint;
RulerNodeItem2 *source, *dest;
QString text;
int height;
int paint_direction;
DiveCartesianAxis *timeAxis;
DiveCartesianAxis *depthAxis;
QGraphicsSimpleTextItem *textItem;
};
#endif