code_app/modules/twainui/twainui.cpp

#include "twain_user/twainui.h"
#include <QMessageBox>
#include "dialog_device_select.h"
#include "dialog_progress_ui.h"
#include "hg_settingdialog.h"
#include "device_menu.h"
#include "base/HGBase.h"

#ifdef HG_CMP_MSC
#include "qwinwidget.hpp"
extern HINSTANCE g_hInst;
extern bool g_ownApplication;
#endif
extern  hg_settingdialog * hg_setting_ui_;
int choose_scanner(const std::vector<DEVQUEUI> &devs)
{
    QWidget* qParent = nullptr;
#ifdef HG_CMP_MSC
    if (!g_ownApplication)
        g_ownApplication = QMfcApp::pluginInstance(g_hInst);
    QWinWidget win(nullptr);
#else
    qParent = parent;
#endif

    QTranslator translator;
    int cp = lang_get_cur_code_page();
    if (20127 == cp)
        translator.load(":translation/TwainUI_zh_EN.qm");
    else
        translator.load(":translation/TwainUI_zh_CN.qm");
    QCoreApplication::installTranslator(&translator);

    Dialog_device_select dlg(devs);
    dlg.exec();
    QCoreApplication::removeTranslator(&translator);

    return dlg.getDevId();
}

char *apply_current_config(const char *dev_name, SANE_Handle device, LPSANEAPI api)
{
    dev_que devQue;
    gb::scanner_cfg *cur_cfg_ = nullptr;
    gb::sane_config_schm *curScheme = nullptr;

    HGChar cfgpath[512] = {0};
    HGBase_GetConfigPath(cfgpath, _countof(cfgpath) - 1);
    HGBase_CreateDir(cfgpath);
    devQue.set_root_dir(cfgpath);
    QString old = QString::fromStdString(cfgpath) + PATH_SYMBOL + "scanner.schm";
    if(QFile::exists(old))
        dev_que::update_old_cfg(old.toStdString().c_str());

    devQue.add_scanner(dev_name);
    devQue.open_scanner(api, device, dev_name, true);

    std::string n(devQue.opened_scanner_name());
    for(int i = 0; i < devQue.scanners(); ++i)
    {
        SCANNER s = devQue.get_at(i);
        if(s.name == n)
        {
            cur_cfg_ = s.cfg;
            break;
        }
    }
    curScheme = cur_cfg_->get_scheme();
    if(!curScheme)
        curScheme = new gb::sane_config_schm();
    curScheme->begin_setting();

    std::string name = curScheme->get_scheme_name();
    char *str = const_cast<char*>(name.c_str());
    return str;
}

void twain_ui_free(void *buf)
{
    if (buf != nullptr)
    {
        delete buf;
        buf = nullptr;
    }
}

int show_setting_ui(SANE_Handle device, HWND parent, LPSANEAPI api, const char *devName, bool with_scan, std::function<void(ui_result)> callback)
{
    if (nullptr == api || nullptr == device)
        return -1;

    QWidget *qParent = nullptr;
#ifdef HG_CMP_MSC
    if (!g_ownApplication)
        g_ownApplication = QMfcApp::pluginInstance(g_hInst);
    QWinWidget *win = new QWinWidget(parent);
    if (nullptr != parent)
    {
        win->showCentered();
        qParent = win;
    }
#else
    qParent = parent;
#endif

    hg_setting_ui_ = new hg_settingdialog(device, api, with_scan, devName, callback, qParent);
    hg_setting_ui_->setModal(true);
    hg_setting_ui_->show();
    return 0;
}

int show_progress_ui(HWND parent, std::function<void (ui_result)> callback, std::function<void (int, void *, int)> *notify)
{
    QWidget *qParent = nullptr;
#ifdef HG_CMP_MSC
    if (!g_ownApplication)
        g_ownApplication = QMfcApp::pluginInstance(g_hInst);
    QWinWidget *win = new QWinWidget(parent);
    if (nullptr != parent)
    {
        win->showCentered();
        qParent = win;
    }
#else
    qParent = parent;
#endif


    if(nullptr != hg_setting_ui_)
    {
        qParent = hg_setting_ui_;
    }

    Dialog_progress_ui *dlg = new Dialog_progress_ui(callback, notify, qParent);
    dlg->setModal(true);
    dlg->show();

    return 0;
}

int show_messagebox_ui(HWND parent, int event, void *msg, int flag)
{
    QWidget *qParent = nullptr;
#ifdef HG_CMP_MSC
    if (!g_ownApplication)
        g_ownApplication = QMfcApp::pluginInstance(g_hInst);
    QWinWidget *win = new QWinWidget(parent);
    if (nullptr != parent)
    {
        win->showCentered();
        qParent = win;
    }
#else
    qParent = parent;
#endif

    char *str = (char*)msg;
    QMessageBox::critical(qParent, QObject::tr("Prompt"), QString::fromStdString(str));
    return UI_RESULT_OK;
}