How can i use setFilterName() public function by taking input from user?

[eefesafak]

My goal is to list files with specified extension on my program. For now, I can only list .h and .cpp files. But, If an user wants to show specified file (ie. *.txt and *.c at the same time), user is not able to do this. How can this problem be solved?
My code is here:

#include "mainwindow.h"
#include "qheaderview.h"
#include "qtablewidget.h"
#include "ui_mainwindow.h"
#include "countline.h"
// kullanıcı seçmeli
// ui_
MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Fixed);
    ui->tableWidget->setColumnWidth(0, 482);
    ui->tableWidget->setColumnWidth(1, 150);
    ui->tableWidget->setColumnWidth(2, 150);
}

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

void MainWindow::addItemToList(const QString &file, const int &fileSize, const int &count)
{
    QTableWidgetItem *iFileName = new QTableWidgetItem(file);
    QTableWidgetItem *iFileSize = new QTableWidgetItem(QString::number(fileSize));
    QTableWidgetItem *iFileCount = new QTableWidgetItem(QString::number(count));

    int rowCount = ui->tableWidget->rowCount();

    ui->tableWidget->insertRow(rowCount);

    rowCount = ui->tableWidget->rowCount();

    ui->tableWidget->setItem(rowCount-1, 0, iFileName);
    ui->tableWidget->setItem(rowCount-1, 1, iFileSize);
    ui->tableWidget->setItem(rowCount-1, 2, iFileCount);
}

QFileInfoList MainWindow::getFileListFromDir(const QString &directory)
{
    QDir qdir(directory);

    QFileInfoList fileList = qdir.entryInfoList(QStringList() << "*.h"  << "*.hpp" << "*.c" << "*.cpp", QDir::Files, QDir::Size);
    for(const QFileInfo &subDirectory : qdir.entryInfoList(QDir::AllDirs | QDir::NoDotAndDotDot))
    {
        fileList << getFileListFromDir(subDirectory.absoluteFilePath());
    }
        return fileList;
}

void MainWindow::on_Browse_clicked()
{
    QString path = QFileDialog::getExistingDirectory(this, tr("Open Directory"), "/home", QFileDialog::ShowDirsOnly |
                                                                                          QFileDialog::DontResolveSymlinks);
    if(path.isEmpty())
        return;

    ui->FullPath->setText(path);
}

void MainWindow::on_Ok_clicked()
{
    QString path = ui->FullPath->text();
    if(path.isEmpty())
        return;

    ui->tableWidget->setRowCount(0);
    QFileInfoList fileList = getFileListFromDir(path);
    int count = 0; int sum = 0;

    foreach(const QFileInfo& file, fileList)
    {
        count = m_ig->funcCountLines(file.filePath());
        sum += count;
        addItemToList(file.filePath(), file.size(), count);
    }
    ui->label->setText(QString::number(sum));
}

In the documentation, I realise that I can use QFileDialog::setNameFilter(const QString& filters). However, I can not understand how can I get this single or multiple extensions from "Extension" Label or from the program.

Thanks for your precious time. Best regards!

[jsulm]

@eefesafak You can use https://doc.qt.io/qt-5/qfiledialog.html#setNameFilters
You also did not explain what exactly your "Extension" label contains. So, what exactly is there?

[JonB]

@eefesafak said in How can i use setFilterName() public function by taking input from user?:

But, If an user wants to show specified file (ie. *.txt and *.c at the same time), user is not able to do this. How can this problem be solved?

In the documentation, I realise that I can use QFileDialog::setNameFilter(const QString& filters). However, I can not understand how can I get this single or multiple extensions from "Extension" Label or from the program.

Where do you expect the user to enter the "(ie. *.txt and *.c at the same time)"? To allow arbitrary input like this, you will have to (presumably) have a QLineEdit where the user can type this in, and then you pick it up and transfer it to your QFileDialog or QDir.entryInfoList() code.

[eefesafak]

@JonB If user enters input separated by semi colon into QLineEdit, that's my goal.

[JonB]

@eefesafak

@JonB said in How can i use setFilterName() public function by taking input from user?:

To allow arbitrary input like this, you will have to (presumably) have a QLineEdit where the user can type this in, and then you pick it up and transfer it to your QFileDialog or QDir.entryInfoList() code.