code_app/modules/twainui/Manager.cpp

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

extern Manager* g_manager;

Manager::Manager()
    : QObject(nullptr)
    , m_progressUiCallback(std::function<void(ui_result)>())
    , m_notify(nullptr)
    , m_settingUiCallback(std::function<void(ui_result)>())
    , m_settingUi(nullptr)
    , m_progressUi(nullptr)
    , m_msgBoxUi(nullptr)
{
    HGBase_CreateEvent(HGFALSE, HGFALSE, &m_event);

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

    connect(this, SIGNAL(deleteDeviceSelectUi()), this, SLOT(on_deleteDeviceSelectUi()));
    connect(this, SIGNAL(deleteSettingUi()), this, SLOT(on_deleteSettingUi()));
    connect(this, SIGNAL(deleteProgressUi()), this, SLOT(on_deleteProgressUi()));
    connect(this, SIGNAL(deleteMessageBoxUi()), this, SLOT(on_deleteMessageBoxUi()));
    connect(this, SIGNAL(deleteManager()), this, SLOT(on_deleteManager()));

    emit init();
}

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

    HGBase_DestroyEvent(m_event);
}

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

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

    return m_DeviceSelectResult;
}

int Manager::showSettingUi(bool qt, 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(qt);

    return 0;
}

int Manager::showProgressUi(bool qt, HWND parent, std::function<void (ui_result)> callback, std::function<void (int, void *, int)> *notify)
{
    m_progressUiparent = parent;
    if (nullptr != m_settingUi)
        m_progressUiparent = (HWND)m_settingUi->winId();
    m_progressUiCallback = callback;
    m_notify = notify;

    m_ProgressUiThreadId = GetCurrentThreadId();
    emit createProgressUi(qt);

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

    return 0;
}

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

    m_MessageBoxUiThreadId = GetCurrentThreadId();

    emit createMessageBoxUi(qt);

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

    return 0;
}

int Manager::showTwainSrcUi(bool qt, const TW_IDENTITY *vds, HGUInt count, const char* defDevName, HGWindow parent, TW_IDENTITY *ds)
{
    m_twainSrcUiThreadId = GetCurrentThreadId();
    m_TwainSrcUiparent = parent;

    m_vds.clear();
    for (int i = 0; i < count; ++i)
    {
        m_vds.push_back(vds[i]);
    }
    m_defDsName = defDevName;
    memset(&m_ds, 0, sizeof(TW_IDENTITY));

    emit createTwainSrcUi(qt);

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

    memcpy(ds, &m_ds, sizeof(TW_IDENTITY));
    return 0;
}

void Manager::closeSettingUi()
{
    emit deleteSettingUi();
}

void Manager::closeProgressUi()
{
    emit deleteProgressUi();
}

void Manager::closeMessageBoxUi()
{
    emit deleteMessageBoxUi();
}

void Manager::closeManager()
{
    emit deleteManager();
}

void Manager::clear_functions(void)
{
    m_settingUiCallback = std::function<void(ui_result)>();
    m_progressUiCallback = std::function<void(ui_result)>();
    m_notify = nullptr;
    if (m_progressUi)
        m_progressUi->clear_callback();
    if (m_settingUi)
        m_settingUi->clear_callback();
}

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(bool qt)
{
    Dialog_device_select *dlg = new Dialog_device_select(m_DeviceSelectDevs);
    dlg->exec();
    m_DeviceSelectResult = dlg->getDevId();

    if (!qt)
    {
        ::PostThreadMessage(m_DeviceSelectThreadId, WM_QUIT, 0, 0);
    }
}

void Manager::on_createSettingUi(bool qt)
{
    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

    auto close_prog = [this](ui_result r) ->void
    {
        if(r != UI_RESULT_START_SCAN)
            m_settingUi = nullptr;
        m_settingUiCallback(r);
    };

    if (m_settingUi == nullptr)
        m_settingUi = new hg_settingdialog(this, m_device, &m_api, m_with_scan, m_devName.c_str(), close_prog, qParent);
    m_settingUi->setModal(true);
    m_settingUi->show();
}

void Manager::on_createProgressUi(bool qt)
{
    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

    auto close_prog = [&](ui_result r) ->void
    {
        //m_progressUi = nullptr;
        if(m_progressUiCallback)
            m_progressUiCallback(r);

        if(r == UI_RESULT_CLOSE_NORMAL)
            m_progressUiCallback = std::function<void(ui_result)>();
    };
    if (m_progressUi == nullptr)
        m_progressUi = new Dialog_progress_ui(this, close_prog, m_notify, qParent);
    m_progressUi->setModal(true);
    m_progressUi->show();

    if (!qt)
    {
        ::PostThreadMessage(m_ProgressUiThreadId, WM_QUIT, 0, 0);
    }
}

void Manager::on_createMessageBoxUi(bool qt)
{
    if (m_msgBoxUi != nullptr)
    {
        delete m_msgBoxUi;
        m_msgBoxUi = nullptr;
    }

    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

    assert(m_msgBoxUi == nullptr);
    m_msgBoxUi = new QMessageBox(QMessageBox::Critical, tr("Prompt"), QString::fromStdString(m_message), QMessageBox::Ok, qParent);
    m_msgBoxUi->setWindowFlags(Qt::SubWindow | Qt::Popup | Qt::WindowStaysOnTopHint);
    //m_msgBoxUi->setModal(true);
    m_msgBoxUi->exec();
    delete m_msgBoxUi;
    m_msgBoxUi = nullptr;

    if (!qt)
    {
        ::PostThreadMessage(m_MessageBoxUiThreadId, WM_QUIT, 0, 0);
    }
}

void Manager::on_createTwainSrcUi(bool qt)
{
    QWidget *qParent = nullptr;
#ifdef HG_CMP_MSC
    QWinWidget win(m_TwainSrcUiparent);
    if (nullptr != m_TwainSrcUiparent)
    {
        win.showCentered();
        qParent = &win;
    }
#else
    qParent = m_TwainSrcUiparent;
#endif

    Dialog_Twain_Source_Select *dlg = new Dialog_Twain_Source_Select (m_vds, m_defDsName, qParent);
    if (dlg->exec())
    {
        dlg->GetIdentify(&m_ds);
    }

    if (!qt)
    {
        ::PostThreadMessage(m_twainSrcUiThreadId, WM_QUIT, 0, 0);
    }
}

void Manager::on_deleteSettingUi()
{
    if (m_settingUi != nullptr)
    {
        m_settingUi->clear_callback();
        delete m_settingUi;
        m_settingUi = nullptr;
    }
}

void Manager::on_deleteProgressUi()
{
    if (m_progressUi != nullptr)
    {
        m_progressUi->clear_callback();
        delete m_progressUi;
        m_progressUi = nullptr;
    }
}

void Manager::on_deleteMessageBoxUi()
{
    if (m_msgBoxUi != nullptr)
    {
        delete m_msgBoxUi;
        m_msgBoxUi = nullptr;
    }
}

void Manager::on_deleteManager()
{
    if (NULL != g_manager)
    {
        delete g_manager;
        g_manager = nullptr;
    }
    QApplication::exit();
}