def test_find_font_match_italic(self):
font_match = get_fontconfig().find_font('arial', size=12.0, italic=True)
self.assertIsNotNone(font_match)
self.assertEqual(font_match.name.lower(), 'arial')
self.assertIn('arial', font_match.file.lower())
self.assertEqual(font_match.size, 12.0)
self.assertFalse(font_match.bold)
self.assertTrue(font_match.italic)
def test_find_font_no_match(self):
"""Even if the font does not exist we get a default result."""
font_match = get_fontconfig().find_font('unknown')
self.assertIsNotNone(font_match)
self.assertIsNotNone(font_match.name)
self.assertIsNotNone(font_match.file)
self.assertNotEqual(font_match.name.lower(), 'unknown')
self.assertNotIn('unknown', font_match.file.lower())
def test_find_font_match_bold(self):
font_match = get_fontconfig().find_font('arial', size=12.0, bold=True)
self.assertIsNotNone(font_match)
self.assertEqual(font_match.name.lower(), 'arial')
self.assertIn('arial', font_match.file.lower())
self.assertEqual(font_match.size, 12.0)
self.assertTrue(font_match.bold)
self.assertFalse(font_match.italic)
def test_find_font_no_match(self):
"""Even if the font does not exist we get a default result."""
font_match = get_fontconfig().find_font('unknown')
self.assertIsNotNone(font_match)
self.assertIsNotNone(font_match.name)
self.assertIsNotNone(font_match.file)
self.assertNotEqual(font_match.name.lower(), 'unknown')
self.assertNotIn('unknown', font_match.file.lower())
def _get_font_metrics_workaround(self):
# Workaround broken fonts with no metrics. Has been observed with
# courR12-ISO8859-1.pcf.gz: "Courier" "Regular"
#
# None of the metrics fields are filled in, so render a glyph and
# grab its height as the ascent, and make up an arbitrary
# descent.
i = get_fontconfig().char_index(self.face, 'X')
error = FT_Load_Glyph(self.face, i, FT_LOAD_RENDER)
FreeTypeError.check_and_raise_on_error('Could load glyph for "X"', error)
self.ascent = self.face.available_sizes.contents.height
self.descent = -self.ascent // 4 # arbitrary.
def test_face_from_fontconfig(font_name, bold, italic):
"""Test loading a font face from the system using font config."""
match = get_fontconfig().find_font(font_name, 16, bold, italic)
assert match is not None
face = FreeTypeFace.from_fontconfig(match)
assert face.name == font_name
assert face.family_name == font_name
assert face.bold == bold
assert face.italic == italic
del face
def _load_font_face_from_system(self):
match = get_fontconfig().find_font(self.name, self.size, self.bold, self.italic)
if not match:
raise base.FontException('Could not match font "%s"' % self.name)
font_face = match.face
if not font_face:
# Try to load from file directly
if not match.file:
raise base.FontException('No filename for "%s"' % self.name)
font_face = self._load_font_face_from_file(match.file)
return font_face
def _get_font_metrics_workaround(self):
# Workaround broken fonts with no metrics. Has been observed with
# courR12-ISO8859-1.pcf.gz: "Courier" "Regular"
#
# None of the metrics fields are filled in, so render a glyph and
# grab its height as the ascent, and make up an arbitrary
# descent.
i = get_fontconfig().char_index(self.face, 'X')
error = FT_Load_Glyph(self.face, i, FT_LOAD_RENDER)
FreeTypeError.check_and_raise_on_error('Could load glyph for "X"',
error)
self.ascent = self.face.available_sizes.contents.height
self.descent = -self.ascent // 4 # arbitrary.
def _load_font_face_from_system(self):
match = get_fontconfig().find_font(self.name, self.size, self.bold,
self.italic)
if not match:
raise base.FontException('Could not match font "%s"' % self.name)
font_face = match.face
if not font_face:
# Try to load from file directly
if not match.file:
raise base.FontException('No filename for "%s"' % self.name)
font_face = self._load_font_face_from_file(match.file)
return font_face
def have_font(cls, name):
# Check memory cache first
name = name.lower()
for font in list(cls._memory_fonts.values()):
if font.name.lower() == name:
return True
# Check system
match = get_fontconfig().find_font(name, 12, False, False)
if match:
# Check the name matches, fontconfig can return a default
if name and match.name and match.name.lower() != name.lower():
return False
return True
else:
return False
def have_font(cls, name):
# Check memory cache first
name = name.lower()
for font in cls._memory_fonts.values():
if font.name.lower() == name:
return True
# Check system
match = get_fontconfig().find_font(name, 12, False, False)
if match:
# Check the name matches, fontconfig can return a default
if name and match.name and match.name.lower() != name.lower():
return False
return True
else:
return False
def test_find_font_match_name(self):
font_match = get_fontconfig().find_font('arial')
self.assertIsNotNone(font_match)
self.assertEqual(font_match.name.lower(), 'arial')
self.assertIn('arial', font_match.file.lower())
def test_find_font_existing(self):
font_match = get_fontconfig().find_font('arial')
self.assertIsNotNone(font_match)
self.assertIsNotNone(font_match.name)
self.assertIsNotNone(font_match.file)
def test_find_font_default(self):
font_match = get_fontconfig().find_font(None)
self.assertIsNotNone(font_match)
self.assertIsNotNone(font_match.name)
self.assertIsNotNone(font_match.file)
def get_character_index(self, character):
assert self.face
return get_fontconfig().char_index(self.face, character)
def get_character_index(self, character):
assert self.face
return get_fontconfig().char_index(self.face, character)
def test_find_font_match_name(self):
font_match = get_fontconfig().find_font('arial')
self.assertIsNotNone(font_match)
self.assertEqual(font_match.name.lower(), 'arial')
self.assertIn('arial', font_match.file.lower())
def have_font(cls, name):
if cls._memory_faces.contains(name):
return True
else:
return get_fontconfig().have_font(name)
def test_find_font_default(self):
font_match = get_fontconfig().find_font(None)
self.assertIsNotNone(font_match)
self.assertIsNotNone(font_match.name)
self.assertIsNotNone(font_match.file)
def _load_font_face_from_system(self):
match = get_fontconfig().find_font(self.name, self.size, self.bold, self.italic)
if not match:
raise base.FontException('Could not match font "%s"' % self.name)
self.face = FreeTypeFace.from_fontconfig(match)
def have_font(cls, name):
if cls._memory_faces.contains(name):
return True
else:
return get_fontconfig().have_font(name)
def _load_font_face_from_system(self):
match = get_fontconfig().find_font(self.name, self.size, self.bold,
self.italic)
if not match:
raise base.FontException('Could not match font "%s"' % self.name)
self.face = FreeTypeFace.from_fontconfig(match)
def get_character_index(self, character):
return get_fontconfig().char_index(self.ft_face, character)
def get_character_index(self, character):
return get_fontconfig().char_index(self.ft_face, character)
def test_find_font_existing(self):
font_match = get_fontconfig().find_font('arial')
self.assertIsNotNone(font_match)
self.assertIsNotNone(font_match.name)
self.assertIsNotNone(font_match.file)