def test_context_properties(self):
context = Context()
desc = FontDescription()
desc.set_family('sans-serif')
context.set_font_description(desc)
assert context.get_font_description().get_family() == 'sans-serif'
context.set_base_gravity(Gravity.EAST)
assert context.get_base_gravity() == Gravity.EAST
assert context.get_gravity() == Gravity.EAST
context.set_gravity_hint(GravityHint.STRONG)
assert context.get_gravity_hint() == GravityHint.STRONG
def test_from_font_desc(self):
font_desc = FontDescription()
a = Attribute.from_font_desc(font_desc, 1, 10)
b = Attribute.from_font_desc(font_desc, 1, 10)
assert a.start_index == 1
assert a.end_index == 10
assert a == b
def get_text_height(pctx: pangocffi.Context, style: TextStyle,
resolution_scale: float):
font = FontDescription()
font.set_family(style.font)
font.set_absolute_size(to_pango_units(style.size))
ret = pangocffi.pango.pango_context_get_metrics(pctx.get_pointer(),
font.get_pointer(),
pangocffi.ffi.NULL)
descent = from_pango_units(
pangocffi.pango.pango_font_metrics_get_descent(ret))
ascent = from_pango_units(
pangocffi.pango.pango_font_metrics_get_ascent(ret))
return (ascent + descent) * resolution_scale
def test_layout_setting_font_description():
context = Context()
layout = Layout(context)
# Assert that the font description is not set
assert layout.get_font_description() is None
# Creating the font description
desc = FontDescription()
desc.set_family('sans-serif')
layout.set_font_description(desc)
# Verifying the font description was set
same_desc = layout.get_font_description()
assert same_desc.get_family() == desc.get_family()
# Changing the font description
desc.set_family('serif')
assert same_desc.get_family() != desc.get_family()
# Resetting the font description
layout.set_font_description(None)
assert layout.get_font_description() is None
def test_font_description_init_identical(self):
desc = FontDescription()
identical_desc = desc.from_pointer(desc.get_pointer())
assert identical_desc == desc
def test_setting_properties(self):
desc = FontDescription()
assert desc.get_family() is None
desc.set_family('sans-serif')
assert desc.get_family() == 'sans-serif'
desc.set_style(Style.NORMAL)
assert desc.get_style() == Style.NORMAL
desc.set_variant(Variant.NORMAL)
assert desc.get_variant() == Variant.NORMAL
desc.set_weight(700)
assert desc.get_weight() == 700
desc.set_weight(Weight.BOOK)
assert desc.get_weight() == Weight.BOOK.value
desc.set_stretch(Stretch.NORMAL)
assert desc.get_stretch() == Stretch.NORMAL
desc.set_size(123)
assert desc.get_size() == 123
assert not desc.get_size_is_absolute()
desc.set_absolute_size(1.23)
assert desc.get_size() != 123
assert desc.get_size_is_absolute()
desc.set_gravity(Gravity.EAST)
assert desc.get_gravity() == Gravity.EAST
def test_font_description_returns_null_from_null_pointer(self):
with self.assertRaises(ValueError):
FontDescription.from_pointer(ffi.NULL)
def test_font_description_not_implemented_equality(self):
desc = FontDescription()
assert ('not an object' != desc)