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# (C) Copyright 2004-2023 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 unittest
from traits.has_traits import HasTraits
from traits.trait_types import Bool, Enum, Instance, Str
from traitsui.handler import ModelView
from traitsui.view import View
from traitsui.item import Item
from traitsui.editors.code_editor import CodeEditor
from traitsui.tests._tools import (
BaseTestMixin,
create_ui,
requires_toolkit,
reraise_exceptions,
ToolkitName,
)
class CodeModel(HasTraits):
code = Str("world domination code")
class CodeView(ModelView):
model = Instance(CodeModel)
show_line_numbers = Bool(True)
style = Enum("simple", "readonly")
def default_traits_view(self):
traits_view = View(
Item(
"model.code",
editor=CodeEditor(show_line_numbers=self.show_line_numbers),
style=self.style,
)
)
return traits_view
class TestCodeEditor(BaseTestMixin, unittest.TestCase):
def setUp(self):
BaseTestMixin.setUp(self)
def tearDown(self):
BaseTestMixin.tearDown(self)
@requires_toolkit([ToolkitName.qt])
def test_code_editor_show_line_numbers(self):
"""CodeEditor should honor the `show_line_numbers` setting"""
def is_line_numbers_visible(ui):
from pyface import qt
txt_ctrl = ui.control.findChild(qt.QtGui.QPlainTextEdit)
return txt_ctrl.line_number_widget.isVisible()
def test_line_numbers_visibility(show=True):
code_model = CodeModel()
code_view = CodeView(model=code_model, show_line_numbers=show)
with reraise_exceptions(), create_ui(code_view) as ui:
self.assertEqual(is_line_numbers_visible(ui), show)
ui.control.close()
test_line_numbers_visibility(True)
test_line_numbers_visibility(False)
@requires_toolkit([ToolkitName.qt])
def test_code_editor_readonly(self):
"""Test readonly editor style for CodeEditor"""
from pyface import qt
code_model = CodeModel()
code_view = CodeView(model=code_model, style="readonly")
with reraise_exceptions(), create_ui(code_view) as ui:
txt_ctrl = ui.control.findChild(qt.QtGui.QPlainTextEdit)
self.assertTrue(txt_ctrl.isReadOnly())
# Test changing the object's text
self.assertEqual(txt_ctrl.toPlainText(), code_model.code)
code_model.code += "some more code"
self.assertTrue(txt_ctrl.isReadOnly())
self.assertEqual(txt_ctrl.toPlainText(), code_model.code)
# Test changing the underlying object
code_model2 = CodeModel(code=code_model.code * 2)
code_view.model = code_model2
self.assertTrue(txt_ctrl.isReadOnly())
self.assertEqual(txt_ctrl.toPlainText(), code_model.code)
ui.control.close()
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