# (C) Copyright 2007 Riverbank Computing Limited
# (C) Copyright 2005-2023 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
import platform
from traits.api import Any, Callable, List, provides, Tuple
from pyface.qt import QtCore, QtGui
from pyface.i_about_dialog import IAboutDialog, MAboutDialog
from .dialog import Dialog
# The HTML displayed in the QLabel.
_DIALOG_TEXT = """
%s
Python %s
Qt %s
%s
Copyright © 2003-2023 Enthought, Inc.
Copyright © 2007 Riverbank Computing Limited
"""
@provides(IAboutDialog)
class AboutDialog(MAboutDialog, Dialog):
""" The toolkit specific implementation of an AboutDialog. See the
IAboutDialog interface for the API documentation.
"""
# Private interface ---------------------------------------------------#
#: A list of connected Qt signals to be removed before destruction.
#: First item in the tuple is the Qt signal. The second item is the event
#: handler.
_connections_to_remove = List(Tuple(Any, Callable))
# -------------------------------------------------------------------------
# 'IWidget' interface.
# -------------------------------------------------------------------------
def destroy(self):
while self._connections_to_remove:
signal, handler = self._connections_to_remove.pop()
signal.disconnect(handler)
super().destroy()
# ------------------------------------------------------------------------
# Protected 'IDialog' interface.
# ------------------------------------------------------------------------
def _create_contents(self, parent):
label = QtGui.QLabel()
if self.title == "":
if parent.parent() is not None:
title = parent.parent().windowTitle()
else:
title = ""
# Set the title.
self.title = "About %s" % title
# Set the page contents.
label.setText(self._create_html())
# Create the button.
buttons = QtGui.QDialogButtonBox()
if self.ok_label:
buttons.addButton(self.ok_label, QtGui.QDialogButtonBox.ButtonRole.AcceptRole)
else:
buttons.addButton(QtGui.QDialogButtonBox.StandardButton.Ok)
buttons.accepted.connect(parent.accept)
self._connections_to_remove.append((buttons.accepted, parent.accept))
lay = QtGui.QVBoxLayout()
lay.addWidget(label)
lay.addWidget(buttons)
parent.setLayout(lay)
def _create_html(self):
# Load the image to be displayed in the about box.
path = self.image.absolute_path
# The additional strings.
additions = "
".join(self.additions)
# Get the version numbers.
py_version = platform.python_version()
qt_version = QtCore.__version__
# The additional copyright strings.
copyrights = "
".join(
["Copyright © %s" % line for line in self.copyrights]
)
return _DIALOG_TEXT % (
path,
additions,
py_version,
qt_version,
copyrights,
)