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fObservers.py
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fObservers.py
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#(c) 2019 R. T. LGPL: part of dodo tools w.b. for FreeCAD
__title__="frameTools selection observers"
__author__="oddtopus"
__url__="github.com/oddtopus/dodo"
__license__="LGPL 3"
import FreeCAD, FreeCADGui, fCmd
class frameObserverPrototype(object):
def __init__(self,msg):
self.beam=self.edge=None
FreeCADGui.Selection.clearSelection()
try:
self.av=FreeCADGui.activeDocument().activeView()
self.stop=self.av.addEventCallback("SoKeyboardEvent",self.goOut)
FreeCAD.Console.PrintMessage('\n'+msg+'\n')
FreeCAD.Console.PrintWarning('*** [ESC] to exit. ***\n')
except:
FreeCAD.Console.PrintError('No view available\n')
FreeCADGui.Selection.removeObserver(self)
def goOut(self,info):
down = (info["State"] == "DOWN")
k=info['Key']
if k=="ESCAPE":
FreeCAD.Console.PrintMessage("I'm escaping.\n")
self.av.removeEventCallback("SoKeyboardEvent",self.stop)
FreeCADGui.Selection.removeObserver(self)
class frameItObserver(frameObserverPrototype):
def __init__(self):
super(frameItObserver,self).__init__('Select one beam and one edge')
self.beam=self.edge=None
def addSelection(self,doc,obj,sub,pnt):
selex=FreeCADGui.Selection.getSelectionEx()
if self.beam==None and hasattr(selex[len(selex)-1].Object,'Height'):
self.beam=selex[len(selex)-1].Object
FreeCAD.Console.PrintMessage('Beam selected\n')
elif self.edge==None and selex[len(selex)-1].SubObjects[0].ShapeType=='Edge':
self.edge=selex[len(selex)-1].SubObjects[0]
FreeCAD.Console.PrintMessage('Edge selected\n')
if self.edge!=None and self.beam!=None:
fCmd.placeTheBeam(self.beam,self.edge)
FreeCAD.Console.PrintMessage('Beam placed.\n')
FreeCAD.Console.PrintWarning('Select another beam and another edge.\n[ESC] to exit.\n')
self.beam=self.edge=None
FreeCAD.activeDocument().recompute()
class fillFrameObserver(frameObserverPrototype):
def __init__(self):
super(fillFrameObserver,self).__init__('First select the base beam, then the edges')
self.beam=None
def addSelection(self,doc,obj,sub,pnt):
if self.beam==None and FreeCAD.getDocument(doc).getObject(obj).TypeId=='Part::FeaturePython':
self.beam=FreeCAD.getDocument(doc).getObject(obj)
FreeCAD.Console.PrintMessage('Beam type selected.\n')
else:
subObject=FreeCAD.getDocument(doc).getObject(obj).Shape.getElement(sub)
if subObject.ShapeType=="Edge" and self.beam!=None:
fCmd.placeTheBeam(FreeCAD.activeDocument().copyObject(self.beam,True),subObject)
class levelBeamObserver(frameObserverPrototype):
def __init__(self):
super(levelBeamObserver,self).__init__('First select the target plane, then the faces to align')
self.targetFace=None
def addSelection(self,doc,obj,sub,pnt):
subObject=FreeCAD.getDocument(doc).getObject(obj).Shape.getElement(sub)
if subObject.ShapeType=="Face":
if self.targetFace==None:
self.targetFace=subObject
FreeCAD.Console.PrintMessage('Target face selected.\n')
else:
beam=FreeCAD.getDocument(doc).getObject(obj)
FreeCAD.activeDocument().openTransaction('levelTheBeam')
fCmd.levelTheBeam(beam,[self.targetFace,subObject])
FreeCAD.activeDocument().commitTransaction()
FreeCAD.Console.PrintMessage('Face moved.\n')
FreeCAD.Console.PrintWarning('Select another face or press [ESC].\n')
class alignFlangeObserver(frameObserverPrototype):
def __init__(self):
super(alignFlangeObserver,self).__init__('Select the target face, then the others')
self.faceBase=None
def addSelection(self,doc,obj,sub,pnt):
subObject=FreeCAD.getDocument(doc).getObject(obj).Shape.getElement(sub)
if subObject.ShapeType=="Face":
if self.faceBase==None:
self.faceBase=subObject
FreeCAD.Console.PrintMessage('Target face selected.\n')
else:
FreeCAD.activeDocument().openTransaction('alignFlange')
fCmd.rotTheBeam(FreeCAD.getDocument(doc).getObject(obj),self.faceBase,subObject)
FreeCAD.activeDocument().commitTransaction()
class alignEdgeObserver(frameObserverPrototype):
def __init__(self):
super(alignEdgeObserver,self).__init__('Select two edges to join.')
self.edges=[]
def addSelection(self,doc,obj,sub,pnt):
subObject=FreeCAD.getDocument(doc).getObject(obj).Shape.getElement(sub)
if subObject.ShapeType=="Edge":
self.edges.append(subObject)
FreeCAD.Console.PrintMessage("Edge"+str(len(self.edges))+" OK\n")
if len(self.edges)>1:
sel=FreeCADGui.Selection.getSelection()
beam=sel[len(sel)-1]
FreeCAD.activeDocument().openTransaction('joinTheBeamsEdges')
fCmd.joinTheBeamsEdges(beam,self.edges[0],self.edges[1])
FreeCAD.activeDocument().commitTransaction()
FreeCAD.Console.PrintMessage('Done.\n')
self.edges=[]
FreeCAD.Console.PrintWarning('Select other edges or [ESC] to exit\n')
class stretchBeamObserver(frameObserverPrototype): #OBSOLETE: replaced with dialog
def __init__(self):
super(stretchBeamObserver,self).__init__('Select the beam and input the length')
self.beam=None
def addSelection(self,doc,obj,sub,pnt):
Obj=FreeCAD.getDocument(doc).getObject(obj)
if self.beam==None and Obj.TypeId=='Part::FeaturePython' and hasattr(Obj,'Height'):
self.beam=Obj
FreeCAD.Console.PrintMessage('Beam type selected.\n')
from PySide.QtGui import QInputDialog as qid
dist=float(qid.getText(None,"stretch a beam","old length = "+str(self.beam.Height)+"\nnew length?")[0])
fCmd.stretchTheBeam(self.beam,dist)
FreeCAD.activeDocument().recompute()
self.av.removeEventCallback("SoKeyboardEvent",self.stop)
FreeCADGui.Selection.removeObserver(self)
FreeCAD.Console.PrintMessage("I quit.")
class extendObserver(frameObserverPrototype): #OBSOLETE: replaced with dialog
def __init__(self):
super(extendObserver,self).__init__('First Select the target shape, then the beams to extend.')
self.target=None
def addSelection(self,doc,obj,sub,pnt):
lastSel=FreeCAD.getDocument(doc).getObject(obj)
subLastSel=lastSel.Shape.getElement(sub)
if lastSel.TypeId=='Part::FeaturePython' and hasattr(lastSel,"Height") and self.target!=None:
fCmd.extendTheBeam(lastSel,self.target)
if self.target==None and subLastSel.ShapeType in ["Edge","Face","Vertex"]:
self.target=subLastSel
FreeCAD.Console.PrintMessage('Target selected.\n')
class adjustAngleObserver(frameObserverPrototype):
def __init__(self):
super(adjustAngleObserver,self).__init__('Select 2 edges')
self.edges=[]
self.beams=[]
def addSelection(self,doc,obj,sub,pnt):
lastSel=FreeCAD.getDocument(doc).getObject(obj)
subLastSel=lastSel.Shape.getElement(sub)
if lastSel.TypeId=='Part::FeaturePython' and hasattr(lastSel,"Height") and subLastSel.ShapeType=="Edge":
self.edges.append(subLastSel)
self.beams.append(lastSel)
FreeCAD.Console.PrintMessage('Edge/beam pair nr.'+str(len(self.edges))+' selected.\n')
if (len(self.edges)==len(self.beams)==2):
if fCmd.isOrtho(*self.edges):
self.beams.reverse()
FreeCAD.ActiveDocument.openTransaction('Adjust angle')
for i in range(len(self.edges)):
fCmd.extendTheBeam(self.beams[i],self.edges[i])
FreeCAD.ActiveDocument.commitTransaction()
FreeCAD.Console.PrintWarning("Adjustment executed.\n")
else:
FreeCAD.Console.PrintError("Edges must be orthogonal.\n")
self.edges=[]
self.beams=[]
FreeCADGui.Selection.clearSelection()
FreeCAD.activeDocument().recompute()
FreeCAD.Console.PrintWarning("Repeat selection or press [ESC]\n")
class rotjoinObserver(frameObserverPrototype): # OBSOLETE
def __init__(self):
super(rotjoinObserver,self).__init__('Select 2 edges =>[Ctrl]+select')
self.edges=[]
def addSelection(self,doc,obj,sub,pnt):
lastSel=FreeCAD.getDocument(doc).getObject(obj)
subLastSel=lastSel.Shape.getElement(sub)
if subLastSel.ShapeType=="Edge":
self.edges.append(subLastSel)
FreeCAD.Console.PrintMessage('Edge'+str(len(self.edges))+' OK.\n')
if len(self.edges)==2:
try:
FreeCAD.activeDocument().openTransaction('rotJoin')
fCmd.rotjoinTheBeam()
FreeCAD.activeDocument().commitTransaction()
FreeCAD.activeDocument().recompute()
FreeCAD.Console.PrintWarning("Edges aligned.\n")
except:
FreeCAD.Console.PrintError("Edges must be selected holding [Ctrl] down for the correct execution. \nRetry.\n")
self.edges=[]
FreeCADGui.Selection.clearSelection()
FreeCAD.Console.PrintWarning("Repeat selection or press [ESC]\n")