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![](https://secure.gravatar.com/avatar/e81491093d5916411bcadfadabe61852?d=identicon&s=48 "K. \\"pestophagous\\" Heller"){kind=small}
2778470b97
Tank icons were shown at incorrect spots on the profile when the DiveEventItem object held a pointer to a struct event even after the struct event at that address had been freed. When internalEvent is a pointer to freed memory, internalEvent->time.seconds could have all kinds of crazy values, which get used in member function DiveEventItem::recalculatePos to place the tank at bad x coordinates. The DiveEventItem(s) no longer store a pointer to memory that they do not own. This way, no matter how the path of execution arrives into slot recalculatePos, we never need fear that the DiveEventItem will dereference a garbage pointer to a struct event. Fixes #968 Signed-off-by: K. Heller <pestophagous@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
35 lines
828 B
C++
35 lines
828 B
C++
#ifndef DIVEEVENTITEM_H
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#define DIVEEVENTITEM_H
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#include "divepixmapitem.h"
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class DiveCartesianAxis;
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class DivePlotDataModel;
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struct event;
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class DiveEventItem : public DivePixmapItem {
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Q_OBJECT
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public:
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DiveEventItem(QObject *parent = 0);
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virtual ~DiveEventItem();
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void setEvent(struct event *ev);
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struct event *getEvent();
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void eventVisibilityChanged(const QString &eventName, bool visible);
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void setVerticalAxis(DiveCartesianAxis *axis);
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void setHorizontalAxis(DiveCartesianAxis *axis);
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void setModel(DivePlotDataModel *model);
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bool shouldBeHidden();
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public
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slots:
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void recalculatePos(bool instant = false);
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private:
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void setupToolTipString();
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void setupPixmap();
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DiveCartesianAxis *vAxis;
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DiveCartesianAxis *hAxis;
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DivePlotDataModel *dataModel;
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struct event *internalEvent;
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};
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#endif // DIVEEVENTITEM_H
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