QTreeWidgetItem - segmentation fault

[szczav]

Hi!

I'm trying to send QTreeWidgetItem* using itemClicked(QTreeWidgetItem*, int) signal but when I'm using in my slot item->text(column_nr) I always get segmentation fault in moment when I click on some item in QTreeWidget tree.
Compilation runs without errors or warnings. Here are some fragments of my program:


base class with connect

DirView *dirView = new DirView;
TagView *tagView = new TagView;
 
connect(dirView, SIGNAL(itemClicked(QTreeWidgetItem*, int)), tagView, SLOT(setTags(QTreeWidgetItem*, int)));

DirView *dirView = new DirView;
TagView *tagView = new TagView;

connect(dirView, SIGNAL(itemClicked(QTreeWidgetItem*, int)), tagView, SLOT(setTags(QTreeWidgetItem*, int)));

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my slot in tagView

void TagView::setTags(QTreeWidgetItem* item, int)
{
	if(item != 0)
		item->text(0);
}

void TagView::setTags(QTreeWidgetItem* item, int)
{
	if(item != 0)
		item->text(0);
}

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dirView constructor (interhits from QTreeWidget)

DirView::DirView(QWidget *parent) : QTreeWidget(parent)
{
	model = new QDirModel;	
 
	QStringList nameFilters;
	nameFilters << "*.mp3" << "*.ogg" << "*.flac" << "*.mpc" << "*.wav" << "*.aac" << "*.wma" << "*.ape" << "*.mpp" << "*.mp4";
	model->setNameFilters(nameFilters);
 
	QTreeView::setModel(model);
 
	QTreeView::header()->setSectionHidden(1, true);
 
	QTreeView::header()->resizeSection(0, 280);
	QTreeView::header()->resizeSection(2, 100);
	QTreeView::header()->resizeSection(3, 100);
 
	this->setRootIndex(model->index(QDir::rootPath()));
}

DirView::DirView(QWidget *parent) : QTreeWidget(parent)
{
	model = new QDirModel;	

	QStringList nameFilters;
	nameFilters << "*.mp3" << "*.ogg" << "*.flac" << "*.mpc" << "*.wav" << "*.aac" << "*.wma" << "*.ape" << "*.mpp" << "*.mp4";
	model->setNameFilters(nameFilters);

	QTreeView::setModel(model);

	QTreeView::header()->setSectionHidden(1, true);

	QTreeView::header()->resizeSection(0, 280);
	QTreeView::header()->resizeSection(2, 100);
	QTreeView::header()->resizeSection(3, 100);

	this->setRootIndex(model->index(QDir::rootPath()));
}

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If it's not enough I can show all code. I have no idea why I can't use item->text(). Signal is generated in appropriate moment but when I'm using text() in slot program crashes.

Anyone can help?

[wysota]

You can't set a new model on a tree widget! Use QTreeView instead.