def insert(self, morph):
'''
Insert morph into this group.
If self is a primitive morph, insert new group morph in hierarchy, i.e. branch.
Because, if self is a primitive morph, it has a transform that shapes its glyphs
but we want a distinct transform for the new group [self,morph].
For debugging, return either new branch or self.
'''
if self.is_primitive():
# Standard insert branch into tree.
parent = self.parent
branch = Morph() # new branch, parented soon, on append
# Assert branch.transform is identity, branch.retained_transform is None
# Rearrange parent of self
parent.remove(self) # break self, former child from parent
# !!! But self.parent still points to parent
branch.append(self) # self, former child of parent, now child of branch
# !!! Note the above changed self.parent
branch.append(morph) # new child of new branch
parent.append(branch) # parent has new child, a branch
# !!! Sets branch.parent = parent
branch.retained_transform = transform.copy(parent.retained_transform)
# Assert branch.transform is identity, branch.retained_transform equals parents
# Assert parent.transform and parent.retained_transform are untouched
# print "branch retained", branch.retained_transform
return branch
else:
print "...............Grouping with ", self
self.append(morph)
return self
def insert(self, morph):
'''
Insert morph into this group.
If self is a primitive morph, insert new group morph in hierarchy, i.e. branch.
Because, if self is a primitive morph, it has a transform that shapes its glyphs
but we want a distinct transform for the new group [self,morph].
For debugging, return either new branch or self.
'''
if self.is_primitive():
# Standard insert branch into tree.
parent = self.parent
branch = Morph() # new branch, parented soon, on append
# Assert branch.transform is identity, branch.retained_transform is None
# Rearrange parent of self
parent.remove(self) # break self, former child from parent
# !!! But self.parent still points to parent
branch.append(
self) # self, former child of parent, now child of branch
# !!! Note the above changed self.parent
branch.append(morph) # new child of new branch
parent.append(branch) # parent has new child, a branch
# !!! Sets branch.parent = parent
branch.retained_transform = transform.copy(
parent.retained_transform)
# Assert branch.transform is identity, branch.retained_transform equals parents
# Assert parent.transform and parent.retained_transform are untouched
# print "branch retained", branch.retained_transform
return branch
else:
print "...............Grouping with ", self
self.append(morph)
return self
def picking_func(self, point):
# Fresh context since can be called outside a walk of model hierarchy
context = config.viewport.user_context()
if self.parent: # None if in background ctl
context.set_matrix(transform.copy(self.parent.retained_transform))
# !!! No style put to context, but insure black ink? TODO
self.put_path_to(context) # recursive, with transforms
# Transform point from DCS to UCS since Cairo in_foo() functions want UCS
pointUCS = vector.Vector(*context.device_to_user(point.x, point.y))
# print self, pointUCS
value = func(self, context, pointUCS)
print "picking_func returning", value
return value
def picking_func(self, point):
# Fresh context since can be called outside a walk of model hierarchy
context = config.viewport.user_context()
if self.parent: # None if in background ctl
context.set_matrix(transform.copy(self.parent.retained_transform))
# !!! No style put to context, but insure black ink? TODO
self.put_path_to(context) # recursive, with transforms
# Transform point from DCS to UCS since Cairo in_foo() functions want UCS
pointUCS = vector.Vector(*context.device_to_user(point.x, point.y))
# print self, pointUCS
value = func(self, context, pointUCS)
print "picking_func returning", value
return value
def _prepare_for_picking(self, point):
'''
Prepare a context for picking.
Fresh context since can be called outside a walk of model hierarchy.
Assert parent is ???
'''
#
context = config.viewport.user_context()
if self.parent: # None if in background ctl
context.set_matrix(transform.copy(self.parent.retained_transform))
# !!! No style put to context, but insure black ink? TODO
self.put_path_to(context) # recursive, with transforms
# Transform point from DCS to UCS since Cairo in_foo() functions want UCS
pointUCS = vector.Vector(*context.device_to_user(point.x, point.y))
return context, pointUCS
def _prepare_for_picking(self, point):
'''
Prepare a context for picking.
Fresh context since can be called outside a walk of model hierarchy.
Assert parent is ???
'''
#
context = config.viewport.user_context()
if self.parent: # None if in background ctl
context.set_matrix(transform.copy(self.parent.retained_transform))
# !!! No style put to context, but insure black ink? TODO
self.put_path_to(context) # recursive, with transforms
# Transform point from DCS to UCS since Cairo in_foo() functions want UCS
pointUCS = vector.Vector(*context.device_to_user(point.x, point.y))
return context, pointUCS
