code_app/app/scanner/dialog_openimageindex.cpp

#include "dialog_openimageindex.h"
#include "ui_dialog_openimageindex.h"

Dialog_OpenImageIndex::Dialog_OpenImageIndex(int total, int currentIndex, QWidget *parent) :
    QDialog(parent)
    , ui(new Ui::Dialog_OpenImageIndex)
{
    ui->setupUi(this);
    setWindowFlags(Qt::Dialog | Qt::WindowCloseButtonHint);

    ui->spinBox->setMinimum(1);
    ui->spinBox->setMaximum(total);
    ui->spinBox->setValue(currentIndex + 1);

    ui->buttonBox->button(QDialogButtonBox::Ok)->setText(tr("ok"));
    ui->buttonBox->button(QDialogButtonBox::Cancel)->setText(tr("cancel"));
}

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

int Dialog_OpenImageIndex::getIndex()
{
    return ui->spinBox->value() - 1;
}

void Dialog_OpenImageIndex::on_spinBox_valueChanged(int arg1)
{
    (void)arg1;
}