RefactoringRope/HelpDialog.py

# -*- coding: utf-8 -*-

# Copyright (c) 2010 - 2022 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing a dialog to show help about rope.
"""

from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QDialog

from .Ui_HelpDialog import Ui_HelpDialog

import Globals


class HelpDialog(QDialog, Ui_HelpDialog):
    """
    Class implementing a dialog to show help about rope.
    """
    def __init__(self, title, helpfile, parent=None):
        """
        Constructor
        
        @param title window title
        @type str
        @param helpfile filename of the helpfile
        @type str
        @param parent reference to the parent widget
        @type QWidget
        """
        QDialog.__init__(self, parent)
        self.setupUi(self)
        self.setWindowFlags(Qt.WindowType.Window)
        
        if Globals.isWindowsPlatform():
            self.helpEdit.setFontFamily("Lucida Console")
        else:
            self.helpEdit.setFontFamily("Monospace")
        
        try:
            with open(helpfile, "r", encoding="utf-8") as f:
                txt = f.read()
            self.helpEdit.setPlainText(txt)
        except OSError as err:
            self.helpEdit.setPlainText(
                self.tr("Could not read file {0}.\nReason: {1}")
                    .format(helpfile, str(err)))
        
        self.searchWidget.attachTextEdit(self.helpEdit)