def size(self, cr):
min_w = self.style("min-width")
min_h = self.style("min-height")
padding = self.style("padding")
width, height = text_size(cr, self.text(), self.font(), self.width())
return (
max(min_w, width + padding[Padding.RIGHT] + padding[Padding.LEFT]),
max(min_h, height + padding[Padding.TOP] + padding[Padding.BOTTOM]),
)
def size(self, context: SizeContext):
style = combined_style(context.style, self._inline_style)
min_w = style["min-width"]
min_h = style["min-height"]
padding = style["padding"]
width, height = text_size(context.cairo, self.text(), style, self.width()) # type: ignore[type-var]
return (
max(min_w, width + padding[Padding.RIGHT] + padding[Padding.LEFT]),
max(min_h, height + padding[Padding.TOP] + padding[Padding.BOTTOM]),
)
def test_text_with_font_as_dict(cr):
w, h = text_size(
cr,
"Example",
{
"font": "sans 10",
"font-style": FontStyle.ITALIC,
"font-weight": FontWeight.BOLD,
"text-decoration": TextDecoration.UNDERLINE,
},
)
assert w
assert h
def test_text_with_font_as_dict_with_values_set_to_none(cr):
w, h = text_size(
cr,
"Example",
{
"font": "sans bold 10",
"font-style": None,
"font-weight": None,
"text-decoration": TextDecoration.NONE,
},
)
assert w
assert h
def test_text_with_font_as_dict_with_values_set_to_none(cr):
w, h = text_size(
cr,
"Example",
{
"font-family": "sans",
"font-size": 9.5,
"font-style": None,
"font-weight": FontWeight.BOLD,
"text-decoration": TextDecoration.NONE,
},
)
assert w
assert h
def post_update(self, context, p1, p2):
"""
Update label placement for association's name and
multiplicity label. p1 is the line end and p2 is the last
but one point of the line.
"""
cr = context.cairo
ofs = 5
name_dx = 0.0
name_dy = 0.0
mult_dx = 0.0
mult_dy = 0.0
dx = float(p2[0]) - float(p1[0])
dy = float(p2[1]) - float(p1[1])
def max_text_size(size1, size2):
w1, h1 = size1
w2, h2 = size2
return (max(w1, w2), max(h1, h2))
name_w, name_h = max_text_size(text_size(cr, self._name, self.font),
(10, 10))
mult_w, mult_h = max_text_size(text_size(cr, self._mult, self.font),
(10, 10))
if dy == 0:
rc = 1000.0 # quite a lot...
else:
rc = dx / dy
abs_rc = abs(rc)
h = dx > 0 # right side of the box
v = dy > 0 # bottom side
if abs_rc > 6:
# horizontal line
if h:
name_dx = ofs
name_dy = -ofs - name_h
mult_dx = ofs
mult_dy = ofs
else:
name_dx = -ofs - name_w
name_dy = -ofs - name_h
mult_dx = -ofs - mult_w
mult_dy = ofs
elif 0 <= abs_rc <= 0.2:
# vertical line
if v:
name_dx = -ofs - name_w
name_dy = ofs
mult_dx = ofs
mult_dy = ofs
else:
name_dx = -ofs - name_w
name_dy = -ofs - name_h
mult_dx = ofs
mult_dy = -ofs - mult_h
else:
# Should both items be placed on the same side of the line?
r = abs_rc < 1.0
# Find out alignment of text (depends on the direction of the line)
align_left = h ^ r
align_bottom = v ^ r
if align_left:
name_dx = ofs
mult_dx = ofs
else:
name_dx = -ofs - name_w
mult_dx = -ofs - mult_w
if align_bottom:
name_dy = -ofs - name_h
mult_dy = -ofs - name_h - mult_h
else:
name_dy = ofs
mult_dy = ofs + mult_h
self._name_bounds = Rectangle(p1[0] + name_dx,
p1[1] + name_dy,
width=name_w,
height=name_h)
self._mult_bounds = Rectangle(p1[0] + mult_dx,
p1[1] + mult_dy,
width=mult_w,
height=mult_h)
def test_text_with_font_as_string(cr):
w, h = text_size(cr, "Example", "sans 10")
assert w
assert h
def test_text_with_just_font_as_dict(cr):
w, h = text_size(cr, "Example", {"font": "sans 10"})
assert w
assert h
def test_text_with_just_font_as_dict(cr):
w, h = text_size(cr, "Example", {"font-family": "sans", "font-size": 10})
assert w
assert h
