def pre_update(self, context):
cr = context.cairo
text = self.subject.name
if text:
width, height = text_extents(cr, text)
self.min_width, self.min_height = width + 10, height + 20
super(UseCaseItem, self).pre_update(context)
def pre_update(self, context):
"""
Pre update, determine width and height of the compartment.
"""
self.width = self.height = 0
cr = context.cairo
for item in self:
item.pre_update(context)
if self:
# self (=list) contains items
sizes = [(0, 0)] # to not throw exceptions by max and sum
if self.title:
w, h = text_extents(cr, self.title)
self.title_height = h
sizes.append((w, h))
sizes.extend(f.get_size(True) for f in self)
self.width = max(size[0] for size in sizes)
self.height = sum(size[1] for size in sizes)
vspacing = self.owner.style.compartment_vspacing
self.height += vspacing * (len(sizes) - 1)
padding = self.owner.style.compartment_padding
self.width += padding[1] + padding[3]
self.height += padding[0] + padding[2]
def pre_update(self, context):
cr = context.cairo
text = self.subject.name
if text:
width, height = text_extents(cr, text)
self.min_width, self.min_height = width + 10, height + 20
super(UseCaseItem, self).pre_update(context)
def pre_update(self, context):
"""
Pre update, determine width and height of the compartment.
"""
self.width = self.height = 0
cr = context.cairo
for item in self:
item.pre_update(context)
if self:
# self (=list) contains items
sizes = [(0, 0)] # to not throw exceptions by max and sum
if self.title:
w, h = text_extents(cr, self.title)
self.title_height = h
sizes.append((w, h))
sizes.extend(f.get_size(True) for f in self)
self.width = max(size[0] for size in sizes)
self.height = sum(size[1] for size in sizes)
vspacing = self.owner.style.compartment_vspacing
self.height += vspacing * (len(sizes) - 1)
padding = self.owner.style.compartment_padding
self.width += padding[1] + padding[3]
self.height += padding[0] + padding[2]
def pre_update(self, context):
if not self.subject:
return
cr = context.cairo
e = self.EAR
o = self.OFFSET
w, h = text_extents(
cr, self.subject.body, self.style.font, width=self.width - e
)
self.min_width = w + e + o * 2
self.min_height = h + o * 2
ElementItem.pre_update(self, context)
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])
name_w, name_h = list(
map(max, text_extents(cr, self._name, self.font), (10, 10))
)
mult_w, mult_h = list(
map(max, text_extents(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 and not r) or (r and not h)
align_bottom = (v and not r) or (r and not v)
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 update_size(self, text, context):
if text:
cr = context.cairo
self.width, self.height = text_extents(cr, text)
else:
self.width, self.height = 0, 0
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])
name_w, name_h = map(max, text_extents(cr, self._name, self.font),
(10, 10))
mult_w, mult_h = map(max, text_extents(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 and not r) or (r and not h)
align_bottom = (v and not r) or (r and not v)
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 update_size(self, text, context):
if text:
cr = context.cairo
self.width, self.height = text_extents(cr, text)
else:
self.width, self.height = 0, 0
