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# (C) Copyright 2008-2023 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 pyface.font import Font as PyfaceFont
from pyface.util.font_parser import simple_parser
from pyface.qt.QtGui import QFont, QFontInfo, QApplication
from traits.api import HasTraits, TraitError
from ..font_trait import (
PyQtFont, TraitsFont, create_traitsfont, font_families, font_styles,
font_to_str, font_weights
)
class FontExample(HasTraits):
font = PyQtFont()
class TestPyQtFont(unittest.TestCase):
def test_create_traitsfont(self):
expected_outcomes = {}
expected_outcomes[""] = TraitsFont()
for weight, qt_weight in font_weights.items():
expected_outcomes[weight] = TraitsFont()
expected_outcomes[weight].setWeight(qt_weight)
for style, qt_style in font_styles.items():
expected_outcomes[style] = TraitsFont()
expected_outcomes[style].setStyle(qt_style)
expected_outcomes["underline"] = TraitsFont()
expected_outcomes["underline"].setUnderline(True)
expected_outcomes["18"] = TraitsFont()
expected_outcomes["18"].setPointSize(18)
expected_outcomes["18 pt"] = TraitsFont()
expected_outcomes["18 pt"].setPointSize(18)
expected_outcomes["18 point"] = TraitsFont()
expected_outcomes["18 point"].setPointSize(18)
for family, qt_style_hint in font_families.items():
expected_outcomes[family] = TraitsFont()
expected_outcomes[family].setStyleHint(qt_style_hint)
default_size = QApplication.font().pointSize()
expected_outcomes["Courier"] = TraitsFont("Courier", default_size)
expected_outcomes["Comic Sans"] = TraitsFont("Comic Sans", default_size)
expected_outcomes["18 pt Bold Oblique Underline Comic Sans script"] = TraitsFont(
"Comic Sans", 18, QFont.Weight.Bold, False
)
expected_outcomes["18 pt Bold Oblique Underline Comic Sans script"].setStyleHint(QFont.StyleHint.Cursive)
expected_outcomes["18 pt Bold Oblique Underline Comic Sans script"].setStyle(QFont.Style.StyleOblique)
expected_outcomes["18 pt Bold Oblique Underline Comic Sans script"].setUnderline(True)
for name, expected in expected_outcomes.items():
with self.subTest(name=name):
result = create_traitsfont(name)
# test we get expected font
self.assertIsInstance(result, TraitsFont)
self.assert_qfont_equal(result, expected)
# round-trip through font_to_str
result_2 = create_traitsfont(font_to_str(result))
self.assert_qfont_equal(result, result_2)
def test_create_traitsfont_qfont(self):
font = QFont("Comic Sans", 18, QFont.Weight.Bold, False)
traits_font = create_traitsfont(font)
self.assertIsInstance(traits_font, TraitsFont)
self.assert_qfont_equal(traits_font, font)
def test_create_traitsfont_pyface_font(self):
args = simple_parser("18 pt Bold Oblique Underline Courier")
font = PyfaceFont(**args)
traits_font = create_traitsfont(font)
self.assertIsInstance(traits_font, TraitsFont)
self.assert_qfont_equal(traits_font, font.to_toolkit())
def test_font_trait_default(self):
obj = FontExample()
self.assertIsInstance(obj.font, TraitsFont)
self.assert_qfont_equal(obj.font, TraitsFont())
def test_font_trait_str(self):
obj = FontExample(font="18 pt Bold Oblique Underline Comic Sans script")
qfont = TraitsFont(
"Comic Sans", 18, QFont.Weight.Bold, False
)
qfont.setStyleHint(QFont.StyleHint.Cursive)
qfont.setStyle(QFont.Style.StyleOblique)
qfont.setUnderline(True)
self.assertIsInstance(obj.font, TraitsFont)
self.assert_qfont_equal(obj.font, qfont)
def test_font_trait_qfont(self):
qfont = TraitsFont(
"Comic Sans", 18, QFont.Weight.Bold, False
)
qfont.setStyleHint(QFont.StyleHint.Cursive)
qfont.setStyle(QFont.Style.StyleOblique)
qfont.setUnderline(True)
obj = FontExample(font=qfont)
self.assertIsInstance(obj.font, TraitsFont)
self.assert_qfont_equal(obj.font, qfont)
def test_font_trait_pyface_font(self):
args = simple_parser("18 pt Bold Oblique Underline Courier typewriter")
font = PyfaceFont(**args)
obj = FontExample(font=font)
self.assertIsInstance(obj.font, TraitsFont)
self.assert_qfont_equal(obj.font, font.to_toolkit())
def test_font_trait_none(self):
obj = FontExample(font=None)
self.assertIsNone(obj.font)
def test_font_trait_bad(self):
with self.assertRaises(TraitError):
obj = FontExample(font=1)
def test_traits_font_reduce(self):
traits_font = TraitsFont(
"Comic Sans", 18, QFont.Weight.Bold, False
)
traits_font.setStyleHint(QFont.StyleHint.Cursive)
traits_font.setStyle(QFont.Style.StyleOblique)
traits_font.setUnderline(True)
result = traits_font.__reduce_ex__(None)
self.assertEqual(
result,
(
create_traitsfont,
("18 point Comic Sans Oblique Bold underline",),
),
)
def test_traits_font_str(self):
traits_font = TraitsFont(
"Comic Sans", 18, QFont.Weight.Bold, False
)
traits_font.setStyleHint(QFont.StyleHint.Cursive)
traits_font.setStyle(QFont.Style.StyleOblique)
traits_font.setUnderline(True)
result = str(traits_font)
self.assertEqual(
result,
"18 point Comic Sans Oblique Bold underline",
)
def assert_qfont_equal(self, font, other):
self.assertIsInstance(font, QFont)
self.assertIsInstance(other, QFont)
self.assertEqual(font.family(), other.family())
self.assertEqual(font.styleHint(), font.styleHint())
self.assertEqual(font.pointSize(), other.pointSize())
self.assertEqual(font.style(), other.style())
self.assertEqual(font.weight(), other.weight())
self.assertEqual(font.underline(), other.underline())
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