geopunt4QgisAbout.py

import os.path
from qgis.PyQt.QtCore import Qt, QSettings, QTranslator, QCoreApplication
from qgis.PyQt.QtWidgets import QPushButton, QDialog, QDialogButtonBox
from .ui_geopunt4QgisAbout import Ui_aboutDlg

class geopunt4QgisAboutDialog(QDialog):
    def __init__(self):
        QDialog.__init__(self, None)
        self.setWindowFlags( self.windowFlags() & ~Qt.WindowContextHelpButtonHint )
        self.setWindowFlags( self.windowFlags() | Qt.WindowStaysOnTopHint)

        # initialize locale
        locale = QSettings().value("locale/userLocale", "en")
        if not locale: locale == 'en' 
        else: locale = locale[0:2]
        localePath = os.path.join(os.path.dirname(__file__), 'i18n', 
                  'geopunt4qgis_{}.qm'.format(locale))
        if os.path.exists(localePath):
            self.translator = QTranslator()
            self.translator.load(localePath)
            QCoreApplication.installTranslator(self.translator)
            
        if locale == 'en': 
            self.htmlFile = os.path.join(os.path.dirname(__file__), 'i18n', 'about-en.html')
        else:
            #dutch is default
            self.htmlFile = os.path.join(os.path.dirname(__file__), 'i18n', 'about-nl.html') 
        self.initGui()
    
    
    def initGui(self):
        """Set up the user interface from Designer."""
        self.ui = Ui_aboutDlg() 
        self.ui.setupUi(self)
        self.ui.buttonBox.addButton( QPushButton("Sluiten"), QDialogButtonBox.RejectRole  )
        with open(self.htmlFile,'r', encoding="utf-8") as html:
            self.ui.aboutText.setHtml( html.read() )