#include "dialog_device_select.hpp"
#include "ui_dialog_device_select.h"
#include <QMessageBox>

Dialog_Device_Select::Dialog_Device_Select(const SANEAPI* saneApi, QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Dialog_Device_Select)
{
    ui->setupUi(this);

    memcpy(&m_saneAPI, saneApi, sizeof(SANEAPI));
    m_devHandle = nullptr;
    m_devName.clear();
    m_vDevName.clear();

    setWindowFlags(Qt::Dialog | Qt::WindowCloseButtonHint);

    const SANE_Device** device_list;
    if (SANE_STATUS_GOOD == saneApi->sane_get_devices_api(&device_list, SANE_TRUE))
    {
        const SANE_Device** p;
        for (p = device_list; *p != nullptr; ++p)
        {
            m_vDevName.push_back((*p)->name);
            ui->listWidget->addItem((*p)->name);
        }
    }

    if (!m_vDevName.empty())
    {
        ui->listWidget->setCurrentRow(0);
    }
}

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

SANE_Handle Dialog_Device_Select::GetDevHandle()
{
    return m_devHandle;
}

std::string Dialog_Device_Select::GetDevName()
{
    return m_devName;
}

void Dialog_Device_Select::on_pushButton_OK_clicked()
{
    int index = ui->listWidget->currentRow();
    if (index < 0)
    {
        return;
    }

    SANE_Handle dev = nullptr;
    SANE_Status ret = m_saneAPI.sane_open_api(m_vDevName[index].c_str(), &dev);
    if (SANE_STATUS_GOOD != ret)
    {
        QMessageBox::information(this, tr("tips"), tr(m_saneAPI.sane_strstatus_api(ret)));
        return;
    }

    m_devHandle = dev;
    m_devName = m_vDevName[index];
    accept();
}

void Dialog_Device_Select::on_pushButton_Cancel_clicked()
{
    reject();
}