FreeCAD workbench to create assembly handbooks
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import FreeCAD as App
import FreeCADGui as Gui
class DocObserver:
changed_object_by_type = {}
selection_by_type = {}
was_selected = []
def __init__(self):
Gui.Selection.addObserver(self)
def slotChangedObject(self, obj, prop):
#print("object changed: " + str(obj).replace('<', '').replace(' object>', '') + " " + obj.Name + " : " + str(prop))
callbacks = self.changed_object_by_type.get(obj.TypeId, None)
if callbacks is not None:
for callback in callbacks.values():
callback(obj, prop)
def addSelection(self, doc, obj_name, sub, pnt):
self.was_selected = Gui.Selection.getSelection()
obj = App.getDocument(doc).getObject(obj_name)
callbacks = self.selection_by_type.get(obj.TypeId, None)
if callbacks is not None:
for callback in callbacks.values():
callback('added', obj, sub, pnt)
def removeSelection(self, doc, obj_name, sub):
self.was_selected = Gui.Selection.getSelection()
obj = App.getDocument(doc).getObject(obj_name)
callbacks = self.selection_by_type.get(obj.TypeId, None)
if callbacks is not None:
for callback in callbacks.values():
callback('removed', obj, sub, None)
def clearSelection(self, p):
was_selected = self.was_selected
self.was_selected = []
for obj in was_selected:
callbacks = self.selection_by_type.get(obj.TypeId, None)
if callbacks is not None:
for callback in callbacks.values():
callback('removed', obj, None, None)
def onObjectTypeChanged(self, callback_id: str, type_id: str, callback):
callbacks = self.changed_object_by_type.get(type_id, None)
if callbacks is None:
callbacks = {}
self.changed_object_by_type[type_id] = callbacks
callbacks[callback_id] = callback
def onObjectTypeSelected(self, callback_id: str, type_id: str, callback):
callbacks = self.selection_by_type.get(type_id, None)
if callbacks is None:
callbacks = {}
self.selection_by_type[type_id] = callbacks
callbacks[callback_id] = callback