text: # The Open BSV license.
  #
  # Copyright © 2020 Bitcoin Association
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the “Software”), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  #   1. The above copyright notice and this permission notice shall be included
  #      in all copies or substantial portions of the Software.
  #   2. The Software, and any software that is derived from the Software or parts
  #      thereof, can only be used on the Bitcoin SV blockchains. The Bitcoin SV
  #      blockchains are defined, for purposes of this license, as the Bitcoin
  #      blockchain containing block height #556767 with the hash
  #      “000000000000000001d956714215d96ffc00e0afda4cd0a96c96f8d802b1662b” and
  #      the test blockchains that are supported by the unmodified Software.
  #
  # THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  
  
  from PyQt5.QtWidgets import QTextBrowser, QVBoxLayout, QWidget
  
  from electrumsv.i18n import _
  from electrumsv.util import read_resource_text
  
  from .util import Buttons, OkButton, WindowModalDialog
  
  
  class HelpDialog(WindowModalDialog):
      def __init__(self, parent: QWidget, title: str, help_dirname: str, help_file_name: str) -> None:
          super().__init__(parent)
  
          self.setWindowTitle(_("ElectrumSV - Help for {}").format(title))
          self.setMinimumSize(450, 400)
  
          release_html = read_resource_text(help_dirname, f"{help_file_name}.html")
  
          widget = QTextBrowser()
          widget.document().setDocumentMargin(15)
          widget.setOpenExternalLinks(True)
          widget.setAcceptRichText(True)
          widget.setHtml(release_html)
  
          vbox = QVBoxLayout(self)
          vbox.addWidget(widget)
          vbox.addLayout(Buttons(OkButton(self)))
  
      def run(self):
          return self.exec_()
  