def ExtendBlend(self, start, end, steps):
idx = self.objects.index(start)
if idx == 0:
inter = BlendInterpolation(steps, end, start)
return CreateMultiUndo(self.insert(inter, 0), self.insert(end, 0))
elif idx == len(self.objects) - 1:
inter = BlendInterpolation(steps, start, end)
return CreateMultiUndo(self.insert(inter, None),
self.insert(end, None))
def do_remove_child(self, idx):
undo = []
try:
if idx % 2 == 0:
# a control object
if self.document is not None:
undo.append(self.document.AddClearRect(self.bounding_rect))
if len(self.objects) > 3:
if idx == 0:
undo.append(self.remove(1))
undo.append(self.remove(0))
elif idx == len(self.objects) - 1:
undo.append(self.remove(idx))
undo.append(self.remove(idx - 1))
else:
steps = self.objects[idx + 1].Steps() \
+ self.objects[idx - 1].Steps()
u = (UndoAfter,
CreateMultiUndo(self.remove(idx + 1),
self.remove(idx)),
self.objects[idx - 1].SetParameters(steps))
undo.append(u)
else:
# remove one of only two control objects -> Remove self
undo.append(self.parent.Remove(self))
return CreateListUndo(undo)
else:
# XXX implement this case
raise ValueError, 'BlendGroup: cannot remove non control child'
except:
Undo(CreateListUndo(undo))
raise
def RemoveTransformation(self): if self.trafo.matrix() != IdentityMatrix: trafo = self.trafo try: undostyle = Primitive.Transform(self, trafo.inverse()) except SingularMatrix: undostyle = None undotrafo = self.set_transformation(Translation(trafo.offset())) return CreateMultiUndo(undostyle, undotrafo) return NullUndo
def RemoveTransformation(self):
if self.trafo.matrix() != IdentityMatrix:
a = self.properties
trafo = self.trafo
llx, lly, urx, ury = a.font.TextCoordBox(self.text, a.font_size, a)
try:
undostyle = Primitive.Transform(self, trafo.inverse())
except SingularMatrix:
undostyle = None
undotrafo = self.set_transformation(Translation(trafo.offset()))
return CreateMultiUndo(undostyle, undotrafo)
return NullUndo
def Transform(self, trafo, transform_properties = 1): undostyle = undo = NullUndo try: rect = self.bounding_rect undo = RectangularObject.Transform(self, trafo) if transform_properties: rects = (rect, self.bounding_rect) undostyle = Primitive.Transform(self, trafo, rects = rects) return CreateMultiUndo(undostyle, undo) except: Undo(undo) Undo(undostyle) raise
def ButtonUp(self, p, button, state):
p = self.apply_constraint(p, state)
Editor.DragStop(self, p)
start_angle, end_angle, arc_type = self.angles()
return CreateMultiUndo(self.object.SetAngles(start_angle, end_angle),
self.object.SetArcType(arc_type))