[solved]Get filepath and filename from qtreewidget

**kamlmish** · 20th December 2010, 05:27

Hi
I have a strange issue where I need to get filepath and filename on a single click of the item in the qtreewidget

Qt Code:

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class browserwindow: public QTreeWidget
{
    Q_OBJECT
public:
    browserwindow(QWidget* parent = 0);
   ~browserwindow();
   //functions
   void populate();
 
public slots:
 
   QModelIndex getDetails(const QModelIndex& index);
 
public:
   QDirModel* model;
   QTreeView* tree;
   QModelIndex index;
 
};

class browserwindow: public QTreeWidget
{
    Q_OBJECT
public:
    browserwindow(QWidget* parent = 0);
   ~browserwindow();
   //functions
   void populate();

public slots:

   QModelIndex getDetails(const QModelIndex& index);

public:
   QDirModel* model;
   QTreeView* tree;
   QModelIndex index;

};

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Qt Code:

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#include "browsemodel.h"
 
browserwindow::browserwindow(QWidget* parent)
    :QTreeWidget(parent)
{
    model = new QDirModel(this);
    tree = new QTreeView(this);
    populate();
 
}
 
browserwindow::~browserwindow()
{
    delete tree;
    delete model;
}
 
void browserwindow::populate()
{
    tree->setModel(model);
    tree->setRootIndex(model->index(QDir::homePath()));
    tree->setWindowTitle("Browse for folder");
    tree->resize(820, 7200);
    connect(this,SIGNAL(clicked(QModelIndex)),SLOT(getDetails(QModelIndex)),Qt::DirectConnection);
 
}
 
QModelIndex browserwindow::getDetails(const QModelIndex &index) // to get details on the index on single click
{
    QString filename = model->fileName(index);
    return model->index(0);
 
}

#include "browsemodel.h"

browserwindow::browserwindow(QWidget* parent)
    :QTreeWidget(parent)
{
    model = new QDirModel(this);
    tree = new QTreeView(this);
    populate();

}

browserwindow::~browserwindow()
{
    delete tree;
    delete model;
}

void browserwindow::populate()
{
    tree->setModel(model);
    tree->setRootIndex(model->index(QDir::homePath()));
    tree->setWindowTitle("Browse for folder");
    tree->resize(820, 7200);
    connect(this,SIGNAL(clicked(QModelIndex)),SLOT(getDetails(QModelIndex)),Qt::DirectConnection);

}

QModelIndex browserwindow::getDetails(const QModelIndex &index) // to get details on the index on single click
{
    QString filename = model->fileName(index);
    return model->index(0);

}

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Issue is that I get a SIGSERV segmentation fault when I run the above code
my main objective is that , when a user clicks on the "browse" button(add_link_folder.png), the browser should open(browser.png)
when the user single clicks on any file in the browser, it should go back to the (add_link_folder.png) and the location and name shud display the filepath and filename respectivly

**Lykurg** · 20th December 2010, 08:22

You don't need to delete tree and model. They get deleted by Qt. Further what is the purpose of subclassing QTreeWidget and create a QTreeView inside? Also do you have seen QFileDialog?

And where exactly crashes the program?

**kamlmish** · 20th December 2010, 08:57

1) I needed to display the filesystem , and therefore I used a QDirModel and QTreeView to display the filesystem
The filesystem gets displayed in a new window(browser.png)
2) QFileDialog would provide me a dialog box where I can select specific files and directories , but my objective is to display the filesystem in a tree view , select a specific file from the treeview , the selected file name and path would be displayed in a text browser

The crash happens at
connect(this,SIGNAL(clicked(QModelIndex)),SLOT(get Details(QModelIndex)),Qt:

irectConnection);