Cura/cura/ConvexHullDecorator.py
Arjen Hiemstra 186eca160b Fix containersChanged signal handlers
Fixes CURA-1642
2016-06-02 16:25:13 +02:00

127 lines
4.9 KiB
Python

from UM.Scene.SceneNodeDecorator import SceneNodeDecorator
from UM.Application import Application
## The convex hull decorator is a scene node decorator that adds the convex hull functionality to a scene node.
# If a scene node has a convex hull decorator, it will have a shadow in which other objects can not be printed.
class ConvexHullDecorator(SceneNodeDecorator):
def __init__(self):
super().__init__()
self._convex_hull = None
# In case of printing all at once this is the same as the convex hull.
# For one at the time this is the area without the head.
self._convex_hull_boundary = None
# In case of printing all at once this is the same as the convex hull.
# For one at the time this is area with intersection of mirrored head
self._convex_hull_head = None
# In case of printing all at once this is the same as the convex hull.
# For one at the time this is area with intersection of full head
self._convex_hull_head_full = None
self._convex_hull_node = None
self._convex_hull_job = None
# Keep track of the previous parent so we can clear its convex hull when the object is reparented
self._parent_node = None
self._global_stack = None
Application.getInstance().globalContainerStackChanged.connect(self._onGlobalStackChanged)
self._onGlobalStackChanged()
#Application.getInstance().getMachineManager().activeProfileChanged.connect(self._onActiveProfileChanged)
#Application.getInstance().getMachineManager().activeMachineInstanceChanged.connect(self._onActiveMachineInstanceChanged)
#self._onActiveProfileChanged()
def setNode(self, node):
super().setNode(node)
self._parent_node = node.getParent()
node.parentChanged.connect(self._onParentChanged)
## Force that a new (empty) object is created upon copy.
def __deepcopy__(self, memo):
copy = ConvexHullDecorator()
return copy
## Get the unmodified convex hull of the node
def getConvexHull(self):
return self._convex_hull
## Get the convex hull of the node with the full head size
def getConvexHullHeadFull(self):
if not self._convex_hull_head_full:
return self.getConvexHull()
return self._convex_hull_head_full
## Get convex hull of the object + head size
# In case of printing all at once this is the same as the convex hull.
# For one at the time this is area with intersection of mirrored head
def getConvexHullHead(self):
if not self._convex_hull_head:
return self.getConvexHull()
return self._convex_hull_head
## Get convex hull of the node
# In case of printing all at once this is the same as the convex hull.
# For one at the time this is the area without the head.
def getConvexHullBoundary(self):
if not self._convex_hull_boundary:
return self.getConvexHull()
return self._convex_hull_boundary
def setConvexHullBoundary(self, hull):
self._convex_hull_boundary = hull
def setConvexHullHeadFull(self, hull):
self._convex_hull_head_full = hull
def setConvexHullHead(self, hull):
self._convex_hull_head = hull
def setConvexHull(self, hull):
self._convex_hull = hull
if not hull and self._convex_hull_node:
self._convex_hull_node.setParent(None)
self._convex_hull_node = None
def getConvexHullJob(self):
return self._convex_hull_job
def setConvexHullJob(self, job):
self._convex_hull_job = job
def getConvexHullNode(self):
return self._convex_hull_node
def setConvexHullNode(self, node):
self._convex_hull_node = node
def _onSettingValueChanged(self, key, property_name):
if key == "print_sequence" and property_name == "value":
self._onChanged()
def _onChanged(self, *args):
if self._convex_hull_job:
self._convex_hull_job.cancel()
self.setConvexHull(None)
def _onParentChanged(self, node):
# Force updating the convex hull of the parent group if the object is in a group
if self._parent_node and self._parent_node.callDecoration("isGroup"):
self._parent_node.callDecoration("setConvexHull", None)
self._parent_node = self.getNode().getParent()
def _onGlobalStackChanged(self):
if self._global_stack:
self._global_stack.propertyChanged.disconnect(self._onSettingValueChanged)
self._global_stack.containersChanged.disconnect(self._onChanged)
self._global_stack = Application.getInstance().getGlobalContainerStack()
if self._global_stack:
self._global_stack.propertyChanged.connect(self._onSettingValueChanged)
self._global_stack.containersChanged.connect(self._onChanged)
self._onChanged()