Method previousFile

src/main_window.cpp:437–444

}

void MainWindow::previousFile() {
    QTreeWidgetItem *currentItem = tree_widget_img->currentItem();
    if (!currentItem) return;
    QTreeWidgetItem *previousItem = tree_widget_img->itemAbove(currentItem);
    if (!previousItem) return;
    tree_widget_img->setCurrentItem(previousItem);
    treeWidgetClicked();
}

void MainWindow::saveConfigFile() {
	QString file = QFileDialog::getSaveFileName(this, tr("Save Config File"), QString(), tr("JSon file (*.json)"));