maemo.org - Talk - Is there anything wrong with this? Random Segfaults.

I've implemented a custom QObject based C++ listmodel and i get random segfaults wondering if anyone can spot if I've done anything wrong:

.h file:

Code:

#ifndef KEYVALUELISTITEM_H

#define KEYVALUELISTITEM_H

#include <QtGui/QApplication>

#include <QObject>

#include <ItemFilterType.h>

#include <ItemFilter.h>

#include <QDebug>



using namespace com_ebay_www_marketplace_search_v1_services;



class KeyValueListItem : public QObject

{

    Q_OBJECT

    // NOTIFY - Simply to get rid of the warning message xxxx depends on non-NOTIFYable properties: xxxx

    Q_PROPERTY(QString displayValue READ displayValue NOTIFY displayValueChanged)

    Q_PROPERTY(QString key READ key NOTIFY keyChanged)

    Q_PROPERTY(QString value READ value NOTIFY valueChanged)

    Q_PROPERTY(bool selected READ selected WRITE setSelected NOTIFY selectedChanged)



public:

    KeyValueListItem(const QString &displayValue, const ADBItemFilterTypeEnum &key, const QString &value, const bool &selected, QObject *parent=0);

    QString displayValue() const;

    ADBItemFilterTypeEnum key() const;

    QString value() const;

    bool selected() const;

    void setSelected(const bool &selected);



signals:

    void displayValueChanged();

    void keyChanged();

    void valueChanged();

    void selectedChanged();



private:

    QString m_displayValue;

    ADBItemFilterTypeEnum m_key;

    QString m_value;

    bool m_selected;

};



#endif // KEYVALUELISTITEM_H

.cpp:

Code:

#include "keyvaluelistitem.h"



KeyValueListItem::KeyValueListItem(const QString &displayValue, const ADBItemFilterTypeEnum &key, const QString &value, const bool &selected, QObject *parent)

    : QObject(parent), m_displayValue(displayValue), m_key(key), m_value(value), m_selected(selected)

{

}



QString KeyValueListItem::displayValue() const {

    if (m_displayValue == NULL)

        return QString("NULL");

    else

        return m_displayValue;

}



ADBItemFilterTypeEnum KeyValueListItem::key() const {

    if (m_key == NULL)

        return ItemFilterType_CONDITION;

    else

        return m_key;

}



QString KeyValueListItem::value() const {

    if (m_value == NULL)

        return QString("NULL");

    else

        return m_value;

}



bool KeyValueListItem::selected() const {

    if (m_selected == NULL)

        return false;

    else

        return m_selected;

}



void KeyValueListItem::setSelected(const bool &selected) {

    if (selected != m_selected) {

        m_selected = selected;

        emit selectedChanged();

    }

}

create new items like this, where conditions is QList<QObject*>

Code:

conditions->append(new KeyValueListItem("New other (see details)", ItemFilterType_CONDITION, "1500", false));