code_app/modules/twainui/Manager.cpp

#include "Manager.h"
#include <QApplication>
#include <qwinwidget.hpp>
#include "lang/app_language.h"

Manager::Manager()
    : QObject(nullptr)
{
    HGBase_CreateEvent(HGFALSE, HGFALSE, &m_event);

    connect(this, SIGNAL(init()), this, SLOT(on_init()));
    connect(this, SIGNAL(createDeviceSelect()), this, SLOT(on_createDeviceSelect()));
    connect(this, SIGNAL(createSettingUi()), this, SLOT(on_createSettingUi()));
    connect(this, SIGNAL(createProgressUi()), this, SLOT(on_createProgressUi()));
    connect(this, SIGNAL(createMessageBoxUi()), this, SLOT(on_createMessageBoxUi()));

    emit init();
}

Manager::~Manager()
{
    QCoreApplication::removeTranslator(&m_translator);
    if (20127 != m_langCode)
        QCoreApplication::removeTranslator(&m_translator_qt);

        HGBase_DestroyEvent(m_event);
}

int Manager::showDeviceSelect(const std::vector<DEVQUEUI>& devs)
{
    m_DeviceSelectDevs = devs;
    m_DeviceSelectThreadId = GetCurrentThreadId();
    emit createDeviceSelect();

    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return m_DeviceSelectResult;
}

int Manager::showSettingUi(SANE_Handle device, HWND parent, LPSANEAPI api, const char *devName, bool with_scan, std::function<void (ui_result)> callback)
{
    m_device = device;
    m_settingUiParent = parent;
    memcpy(&m_api, api, sizeof(m_api));
    m_devName = devName;
    m_with_scan = with_scan;
    m_settingUiCallback = callback;

    m_SettingUiThreadId = GetCurrentThreadId();

    emit createSettingUi();

    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return 0;
}

int Manager::showProgressUi(HWND parent, std::function<void (ui_result)> callback, std::function<void (int, void *, int)> *notify)
{
    m_progressUiparent = parent;
    m_progressUiCallback = callback;
    m_notify = notify;

    m_ProgressUiThreadId = GetCurrentThreadId();
    emit createProgressUi();

    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return 0;
}

int Manager::showMessageBoxUi(HWND parent, int event, void *msg, int flag)
{
    m_messageBoxUiParent = parent;
    m_notifyEvent = event;
    m_message = (char*)msg;
    m_flag = flag;

    m_MessageBoxUiThreadId = GetCurrentThreadId();

    emit createMessageBoxUi();

    MSG msg2;
    while (GetMessage(&msg2, NULL, 0, 0))
    {
        TranslateMessage(&msg2);
        DispatchMessage(&msg2);
    }
    return 0;
}

void Manager::on_init()
{
    m_langCode = lang_get_cur_code_page();
    if (20127 == m_langCode)
    {
        m_translator.load(":translation/TwainUI_zh_EN.qm");
    }
    else
    {
        m_translator.load(":translation/TwainUI_zh_CN.qm");
        m_translator_qt.load(":translation/qt_zh_CN.qm");
    }

    QCoreApplication::installTranslator(&m_translator);
    if (20127 != m_langCode)
        QCoreApplication::installTranslator(&m_translator_qt);
}

void Manager::on_createDeviceSelect()
{
    Dialog_device_select dlg(m_DeviceSelectDevs);
    dlg.exec();
    m_DeviceSelectResult = dlg.getDevId();
    ::PostThreadMessage(m_DeviceSelectThreadId, WM_QUIT, 0, 0);
}

void Manager::on_createSettingUi()
{
    QWidget *qParent = nullptr;
#ifdef HG_CMP_MSC
    if (nullptr != m_settingUiParent)
    {
        QWinWidget *win = new QWinWidget(m_settingUiParent);
        win->showCentered();
        qParent = win;
    }
#else
    qParent = m_settingUiParent;
#endif

    hg_settingdialog *dlg = new hg_settingdialog(m_device, &m_api, m_with_scan, m_devName.c_str(), m_settingUiCallback, qParent);
    dlg->setModal(true);
    dlg->show();
    ::PostThreadMessage(m_SettingUiThreadId, WM_QUIT, 0, 0);
}

void Manager::on_createProgressUi()
{
    QWidget *qParent = nullptr;
#ifdef HG_CMP_MSC
    if (nullptr != m_progressUiparent)
    {
        QWinWidget *win = new QWinWidget(m_progressUiparent);
        win->showCentered();
        qParent = win;
    }
#else
    qParent = m_progressUiparent;
#endif

    Dialog_progress_ui *dlg = new Dialog_progress_ui(m_progressUiCallback, m_notify, qParent);
    dlg->setModal(true);
    dlg->show();
    ::PostThreadMessage(m_ProgressUiThreadId, WM_QUIT, 0, 0);
}

void Manager::on_createMessageBoxUi()
{
    QWidget *qParent = nullptr;
#ifdef HG_CMP_MSC
    if (nullptr != m_messageBoxUiParent)
    {
        QWinWidget *win = new QWinWidget(m_messageBoxUiParent);
        win->showCentered();
        qParent = win;
    }
#else
    qParent = m_messageBoxUiParent;
#endif

    QMessageBox *msg = new QMessageBox(QMessageBox::Critical, tr("Prompt"), QString::fromStdString(m_message), QMessageBox::Ok, qParent);
    msg->setModal(true);
    msg->show();
    ::PostThreadMessage(m_MessageBoxUiThreadId, WM_QUIT, 0, 0);
}