setText in QTreeWidget Crashes?

Hi All,

I am working on Qt 4.2.2 on my MAC.
I have set the text of the QTreeWidgetItem by using setText(QString).

I am getting the following crash report.

Quote:

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PID: 163
Thread: 0

Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000026

Thread 0 Crashed:
0 MyApp 0x00153b18 QTreeModel::index(QTreeWidgetItem const*, int) const + 76
1 MyApp 0x00154524 QTreeModel::parent(QModelIndex const&) const + 112
2 MyApp 0x0046d310 QModelIndex::parent() const + 60
3 MyApp 0x00161604 QTreeViewPrivate::viewIndex(QModelIndex const&) const + 84
4 MyApp 0x001641b0 QTreeView::dataChanged(QModelIndex const&, QModelIndex const&) + 124
5 MyApp 0x00166cc4 QTreeView::qt_metacall(QMetaObject::Call, int, void**) + 292
6 MyApp 0x0015a59c QTreeWidget::qt_metacall(QMetaObject::Call, int, void**) + 40
7 StellarPhoenix 0x0006a3d8 QMetaObject::activate(QObject*, int, int, void**) + 1240
8 MyApp 0x0029eeac QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&) + 64
9 MyApp 0x00154808 QTreeModel::emitDataChanged(QTreeWidgetItem*, int) + 396
10 MyApp 0x00157b4c QTreeWidgetItem::setData(int, int, QVariant const&) + 1096
11 MyApp 0x00443d80 QTreeWidgetItem::setText(int, QString const&) + 72

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If any body knows why it is crashing then plz help me.

Thanks.

Can we see the code?

The pointer is invalid? Could you show some code, please?

Here it is

Code:

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void MyClass::SetFolderTree(QTreeWidgetItem *treeViewItem,const QString& bFileName, const QString& ID,const QString& parentId)
{
    QIcon Folder(":/images/img_Folder.png");
	//QSize size(18,18);//Set the size of the Item in treeWidget
	QSize folderSize(16,16); 
	QFont lucidaFont("Lucida Grande", 12);
 
    if(!TotalFilesAndFoldersInList.isEmpty())
        m_pTotalSizeReadLabel->setText(TotalFilesAndFoldersInList);
 
    if(!bFileName.isEmpty())	
	    treeViewItem->setText(0,bFileName);
	else 
	    treeViewItem->setText(0,ID);
 
	if(!ID.isEmpty())				
	    treeViewItem->setText(1,ID);
 
	if(!parentId.isEmpty())		
	    treeViewItem->setText(2,parentId);
 
 
	treeViewItem->setFont(0,lucidaFont);
 
	treeViewItem->setCheckState (0, Qt::Unchecked );
	treeViewItem->setIcon (0, Folder );
 
	m_pDiskTree->m_pDiscTreeWidget->setIconSize(folderSize);
	//treeViewItem->setSizeHint (0,size );
	treeViewItem->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable );	
 
}

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And where does this "QTreeWidgetItem *treeViewItem" come from?

I am declaring it in the calling function and since I need its value in this function so I emit the signal SetFolderTreeName for which the code I have sent you eariler is Slot.

Code:

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QTreeWidgetItem  *treeViewItem = new QTreeWidgetItem;
treeViewItem->setSizeHint (0,size );
 
emit SetFolderTreeName(treeViewItem,bFileName,qFileId.setNum(MyEntry->dwFileId),QString::number(MyEntry->dwParentId));

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