code_app/app/scantool/mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QMessageBox>
#include <QCloseEvent>

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

    m_scanDlg = new Dialog_Scan(this);
    m_trayIcon = new QSystemTrayIcon(this);
    m_trayIcon->setIcon(QIcon(":images/image_rsc/png/logo.png"));
    m_trayIcon->show();
    m_trayIcon->setToolTip(tr("HuaGao Scan Tool"));

    qRegisterMetaType<QSystemTrayIcon::ActivationReason>("QSystemTrayIcon::ActivationReason");
    connect(m_trayIcon, &QSystemTrayIcon::activated, this, &MainWindow::on_trayActivated);

    m_scanAction = new QAction(tr("Scan Setting"), this);
    connect(m_scanAction, &QAction::triggered, this, &MainWindow::on_showScanSettingDlg);
    m_btnAction = new QAction(tr("Button Setting"), this);
    connect(m_btnAction, &QAction::triggered, this, &MainWindow::on_showMainWindowDlg);
    m_quitAction = new QAction(tr("Exit"), this);
    connect(m_quitAction, &QAction::triggered, this, &QCoreApplication::quit);   //应用程序的退出

    //创建菜单，添加菜单项
    m_trayIconMenu = new QMenu(this);
    m_trayIconMenu->addAction(m_scanAction);
    m_trayIconMenu->addAction(m_btnAction);
    m_trayIconMenu->addSeparator();   //分割线
    m_trayIconMenu->addAction(m_quitAction);
    //给系统托盘添加右键菜单
    m_trayIcon->setContextMenu(m_trayIconMenu);

    ui->tableWidget->setColumnCount(4);
    ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
    ui->tableWidget->setStyleSheet("selection-background-color:rgb(0, 120, 215)");
    ui->tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
    ui->tableWidget->horizontalHeader()->setFixedHeight(40);
    ui->tableWidget->horizontalHeader()->setStretchLastSection(true);
    ui->tableWidget->setHorizontalHeaderItem(0, new QTableWidgetItem("Device Type"));
    ui->tableWidget->setHorizontalHeaderItem(1, new QTableWidgetItem("Button Type"));
    ui->tableWidget->setHorizontalHeaderItem(2, new QTableWidgetItem("Device Config"));
    ui->tableWidget->setHorizontalHeaderItem(3, new QTableWidgetItem("Save Param"));
    ui->tableWidget->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch);
    ui->tableWidget->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);
    ui->tableWidget->horizontalHeader()->setSectionResizeMode(2, QHeaderView::Stretch);
    ui->tableWidget->horizontalHeader()->setSectionResizeMode(3, QHeaderView::Stretch);

    // TODO 读取配置文件，设置m_vScanParams

    ui->tableWidget->setRowCount((int)m_vScanParams.size());

    for (int index = 0; index < (int)m_vScanParams.size(); ++index)
    {
        ui->tableWidget->setRowHeight(index, 30);

        ui->tableWidget->setItem(index, 0, new QTableWidgetItem(QString(m_vScanParams[index].deviceType.c_str())));
        ui->tableWidget->item(index, 0)->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget->item(index, 0)->setFlags(ui->tableWidget->item(index, 0)->flags() & ~Qt::ItemIsEditable);

        const char *btnTypeStr[] = {NULL, "Button 1", "Button 2", "Button 3"};
        ui->tableWidget->setItem(index, 1, new QTableWidgetItem(btnTypeStr[m_vScanParams[index].buttonType]));
        ui->tableWidget->item(index, 1)->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget->item(index, 1)->setFlags(ui->tableWidget->item(index, 1)->flags() & ~Qt::ItemIsEditable);

        ui->tableWidget->setItem(index, 2, new QTableWidgetItem(GetDesc(m_vScanParams[index].deviceConfigs)));
        ui->tableWidget->item(index, 2)->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget->item(index, 2)->setFlags(ui->tableWidget->item(index, 2)->flags() & ~Qt::ItemIsEditable);

        ui->tableWidget->setItem(index, 3, new QTableWidgetItem(GetDesc(m_vScanParams[index].saveParam)));
        ui->tableWidget->item(index, 3)->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget->item(index, 3)->setFlags(ui->tableWidget->item(index, 3)->flags() & ~Qt::ItemIsEditable);
    }

    ui->tableWidget->selectRow(0);
}

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

bool MainWindow::GetScanParam(const std::string &deviceType, ButtonType buttonType, ScanParam &scanParam)
{
    for (int i = 0; i < (int)m_vScanParams.size(); ++i)
    {
        if (deviceType == m_vScanParams[i].deviceType && buttonType == m_vScanParams[i].buttonType)
        {
            scanParam = m_vScanParams[i];
            return true;
        }
    }

    return false;
}

bool MainWindow::FindScanParam(const std::string &deviceType, ButtonType buttonType, int ignoreIndex)
{
    for (int i = 0; i < (int)m_vScanParams.size(); ++i)
    {
        if (deviceType == m_vScanParams[i].deviceType && buttonType == m_vScanParams[i].buttonType)
        {
            if (-1 == ignoreIndex) // 表示均不忽略
            {
                return true;
            }
            else if (i != ignoreIndex)
            {
                return true;
            }
        }
    }

    return false;
}

QString MainWindow::GetDesc(const std::vector<DeviceConfig> &deviceConfigs)
{
    QString desc;

    return desc;
}

QString MainWindow::GetDesc(const SaveParam &saveParam)
{
    QString desc;

    desc += "[";
    desc += tr("Save path:");
    desc += saveParam.m_savePath;
    desc += "]";
    desc += " ";
    desc += "[";
    desc += tr("Image format:");
    desc += saveParam.m_fileNameExt;
    desc += "]";

    return desc;
}

void MainWindow::closeEvent(QCloseEvent *e)
{
    if (m_trayIcon->isVisible())   //托盘是显示的
    {
        hide(); // 隐藏主窗口
        e->ignore(); //忽略关闭事件，这样才不会关闭程序
    }
}

void MainWindow::on_trayActivated(QSystemTrayIcon::ActivationReason reason)
{
    if (QSystemTrayIcon::Trigger == reason)
    {

    }
    else if (QSystemTrayIcon::DoubleClick == reason)
    {
        show();
        raise();
    }
    else if (QSystemTrayIcon::MiddleClick == reason)
    {

    }
}

void MainWindow::on_showScanSettingDlg()
{
    m_scanDlg->show();
    m_scanDlg->raise();
}

void MainWindow::on_showMainWindowDlg()
{
    show();
    raise();
}

void MainWindow::on_pushButtonAdd_clicked()
{
    if (NULL == m_scanDlg->m_devHandle)
    {
        QMessageBox::information(this, tr("Tips"), tr("Device is offline"));
        return;
    }

    // TODO 获取m_scanDlg->m_devHandle是否支持按键扫描
    if (0)
    {
        QMessageBox::information(this, tr("Tips"), tr("The device does not support key scanning"));
        return;
    }

    std::string deviceType = m_scanDlg->m_devName.toStdString(); // TODO 获取m_scanDlg->m_devHandle设备类型
    char v[256] = {0};
    SANE_Status status = sane_control_option(m_scanDlg->m_devHandle, (SANE_Int)0x886D, SANE_ACTION_GET_VALUE, v, NULL);
    if (SANE_STATUS_GOOD == status)
    {
        deviceType = v;
    }

    Dialog_Add dlg(m_scanDlg->m_devHandle, this, deviceType);
    if (dlg.exec())
    {
        ScanParam scanParam = dlg.GetScanParam();
        m_vScanParams.push_back(scanParam);
        // TODO 保存m_vScanParams

        ui->tableWidget->setRowCount((int)m_vScanParams.size());
        int index = (int)m_vScanParams.size() - 1;

        ui->tableWidget->setRowHeight(index, 30);

        ui->tableWidget->setItem(index, 0, new QTableWidgetItem(QString(m_vScanParams[index].deviceType.c_str())));
        ui->tableWidget->item(index, 0)->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget->item(index, 0)->setFlags(ui->tableWidget->item(index, 0)->flags() & ~Qt::ItemIsEditable);

        const char *btnTypeStr[] = {NULL, "Button 1", "Button 2", "Button 3"};
        ui->tableWidget->setItem(index, 1, new QTableWidgetItem(btnTypeStr[m_vScanParams[index].buttonType]));
        ui->tableWidget->item(index, 1)->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget->item(index, 1)->setFlags(ui->tableWidget->item(index, 1)->flags() & ~Qt::ItemIsEditable);

        ui->tableWidget->setItem(index, 2, new QTableWidgetItem(GetDesc(m_vScanParams[index].deviceConfigs)));
        ui->tableWidget->item(index, 2)->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget->item(index, 2)->setFlags(ui->tableWidget->item(index, 2)->flags() & ~Qt::ItemIsEditable);

        ui->tableWidget->setItem(index, 3, new QTableWidgetItem(GetDesc(m_vScanParams[index].saveParam)));
        ui->tableWidget->item(index, 3)->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget->item(index, 3)->setFlags(ui->tableWidget->item(index, 3)->flags() & ~Qt::ItemIsEditable);

        ui->tableWidget->selectRow(index);
    }
}

void MainWindow::on_pushButtonModify_clicked()
{
    int index = ui->tableWidget->currentRow();
    if (-1 == index)
    {
        QMessageBox::information(this, tr("Tips"), tr("No item selected"));
        return;
    }

    if (NULL == m_scanDlg->m_devHandle)
    {
        QMessageBox::information(this, tr("Tips"), tr("Device is offline"));
        return;
    }

    std::string deviceType = m_scanDlg->m_devName.toStdString(); // TODO 获取m_scanDlg->m_devHandle设备类型
    char v[256] = {0};
    SANE_Status status = sane_control_option(m_scanDlg->m_devHandle, (SANE_Int)0x886D, SANE_ACTION_GET_VALUE, v, NULL);
    if (SANE_STATUS_GOOD == status)
    {
        deviceType = v;
    }

    if (deviceType != m_vScanParams[index].deviceType)
    {
        QMessageBox::information(this, tr("Tips"), tr("Device type mismatch"));
        return;
    }

    Dialog_Add dlg(m_scanDlg->m_devHandle, this, m_vScanParams[index], index);
    if (dlg.exec())
    {
        ScanParam scanParam = dlg.GetScanParam();
        m_vScanParams[index] = scanParam;
        // TODO 保存m_vScanParams

        ui->tableWidget->item(index, 0)->setText(QString::fromStdString(m_vScanParams[index].deviceType));

        const char *btnTypeStr[] = {NULL, "Button 1", "Button 2", "Button 3"};
        ui->tableWidget->item(index, 1)->setText(QString::fromStdString(btnTypeStr[m_vScanParams[index].buttonType]));

        ui->tableWidget->item(index, 2)->setText(GetDesc(m_vScanParams[index].deviceConfigs));
        ui->tableWidget->item(index, 3)->setText(GetDesc(m_vScanParams[index].saveParam));
    }
}

void MainWindow::on_pushButtonRemove_clicked()
{
    int index = ui->tableWidget->currentRow();
    if (-1 == index)
    {
        QMessageBox::information(this, tr("Tips"), tr("No item selected"));
        return;
    }

    QMessageBox msg(QMessageBox::Question, tr("Question"),
                            tr("Are you sure you want to remove the item?"),
                            QMessageBox::Yes | QMessageBox::No, this);
    msg.exec();
    if (msg.clickedButton() != msg.button(QMessageBox::Yes))
    {
        return;
    }

    m_vScanParams.erase(m_vScanParams.begin() + index);
    // TODO 保存m_vScanParams
    ui->tableWidget->removeRow(index);
}