tools_collection.py

import os
import sys

from PyQt5.QtCore import Qt, QTranslator, QLocale
from PyQt5.QtWidgets import QApplication
from qfluentwidgets import FluentTranslator

from app.common.config import cfg
from app.view.main_window import MainWindow

language_dict = {
    "zh_CN": QLocale(QLocale.Chinese, QLocale.China),
    "en_US": QLocale(QLocale.English),
    "Auto": QLocale(),
}

if __name__ == "__main__":
    # enable dpi scale
    if cfg.get(cfg.dpiScale) == "Auto":
        QApplication.setHighDpiScaleFactorRoundingPolicy(
            Qt.HighDpiScaleFactorRoundingPolicy.PassThrough
        )
        QApplication.setAttribute(Qt.AA_EnableHighDpiScaling)
    else:
        os.environ["QT_ENABLE_HIGHDPI_SCALING"] = "0"
        os.environ["QT_SCALE_FACTOR"] = str(cfg.get(cfg.dpiScale))

    QApplication.setAttribute(Qt.AA_UseHighDpiPixmaps)

    # create application
    app = QApplication(sys.argv)
    app.setAttribute(Qt.AA_DontCreateNativeWidgetSiblings)

    # internationalization
    locale = language_dict[cfg.get(cfg.language)]
    translator = FluentTranslator(locale)
    galleryTranslator = QTranslator()
    galleryTranslator.load(locale, "translation", ".", ":/resource/i18n")

    app.installTranslator(translator)
    app.installTranslator(galleryTranslator)

    # create main window
    w = MainWindow()
    w.show()

    app.exec_()