[question] how to copy a file from folder and paste it to other folder using buttons and treeview

SGaist

Hi and welcome to devnet,

Take a look at QFileSystemModel + QTreeView. You have a good starting point from there to do what you want.

? Offline

@SGaist Hi,
Please see and help,I already have made two buttons and there action i.e; make dir and delete dir .But I don't know how this copy paste will work.
ALso I already saw QFileSystemModel but didn't get much.

#include "treeviewdirmodeldialog.h"
#include "ui_treeviewdirmodeldialog.h"

TreeViewDirModelDialog::TreeViewDirModelDialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::TreeViewDirModelDialog)
{
ui->setupUi(this);

// Create and populate our model
model = new QDirModel(this);

// Enable modifying file system
model->setReadOnly(false);

// Setup sort criteria
// directory first, ignore case,
// and sort by name
model->setSorting(QDir::DirsFirst |
                  QDir::IgnoreCase |
                  QDir::Name);

// QTreeView::setModel(QAbstractItemModel * model)
// Reimplemented from QAbstractItemView::setModel().
ui->treeView->setModel(model);

// Set initial selection
QModelIndex index = model->index("C:/");

// Set initial view of directory
// for the selected drive as expanded
ui->treeView->expand(index);

// Make it scroll to the selected
ui->treeView->scrollTo(index);

// Highlight the selected
ui->treeView->setCurrentIndex(index);

// Resizing the column - first column
ui->treeView->resizeColumnToContents(0);

}

TreeViewDirModelDialog::~TreeViewDirModelDialog()
{
delete ui;
}

void TreeViewDirModelDialog::on_pushButton_clicked()
{
// Make directory
QModelIndex index = ui->treeView->currentIndex();
if(!index.isValid()) return;

QString name  = QInputDialog::getText(this, "Name", "Enter a name");

if(name.isEmpty()) return;

model->mkdir(index, name);

}

void TreeViewDirModelDialog::on_pushButton_2_clicked()
{
// Delete directory

// Get the current selection
QModelIndex index = ui->treeView->currentIndex();
if(!index.isValid()) return;

if(model->fileInfo(index).isDir())
{
    // directory
    model->rmdir(index);
}
else
{
    // file
    model->remove(index);
}

}

void TreeViewDirModelDialog::on_pushButton_3_clicked()
{

}

void TreeViewDirModelDialog::on_pushButton_4_clicked()
{

}

SGaist

QFile::copy for that part.

But again, use QFileSystemModel, QDirModel has been obsoleted.

? Offline

@SGaist I already tried QFile::copy but It also didn't help as I'm new to it.Will you please it make for me,or tell me the way to do as I'm struggling from two days.Please do a favor.

SGaist

What did you write using QFile ?

? Offline

void TreeViewDirModelDialog::on_pushButton_3_clicked()
{
QFile::copy("path_file", "copy");
}

Sir if it is wrong,please guide me.

SGaist

How do you determine the source and the target ?

? Offline

I'm bit confused though,"index" is the source but don't know how to select "target".
Please code here :http://pastebin.com/1WnGkc5V

SGaist

You can use e.g. a QFileDialog for that

? Offline

Already tried,It just gave the pop up window just like the file upload.

SGaist

You should use QFileDialog::getExistingDirectory when you want to copy something somewhere.

But when doing such a design with buttons you would usually have two views like TotalCommander so the user can select the source and target there.