trying to fix wrong commit from some time ago, still needs fixing.

pykat/__init__.py

+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 __version__ = "0.6.2"
 
 # This flag is used to switch on the gui features in pkat at import time
 USE_GUI = False
+HAS_OPTIVIS = False
+import imp
+try:
+	imp.find_module('optivis')
+	HAS_OPTIVIS = True
+except ImportError:
+	HAS_OPTIVIS = False
 
 import pykat.exceptions as pkex
 

pykat/components.py

@@ -9,7 +9,7 @@ from __future__ import division
 from __future__ import print_function
 from __future__ import unicode_literals
 
-from pykat import USE_GUI, NoGUIException
+from pykat import USE_GUI, HAS_OPTIVIS, NoGUIException
 
 import pykat.external.six as six
 
@@ -21,15 +21,22 @@ import pykat
 from pykat.node_network import *
 from pykat.exceptions import *
 import abc
+import copy
+from collections import OrderedDict
+
+if HAS_OPTIVIS:
+    import optivis.bench.components as optivis_components
+    from optivis.view.canvas import OptivisCanvasItemDataType
+    from optivis.bench.labels import Label as optivis_label
+    from optivis.geometry import Coordinates as optivis_coord
+    import PyQt4
 
 from pykat.SIfloat import *
 from pykat.param import Param, AttrParam
 import weakref
 import pykat.exceptions as pkex
-from copy import deepcopy
-next_component_id = 1
 
-from pykat import USE_GUI, NoGUIException
+next_component_id = 1
 
 if USE_GUI:
     import pykat.gui.resources
@@ -79,7 +86,15 @@ class NodeGaussSetter(object):
 class Component(object):
     __metaclass__ = abc.ABCMeta
 
-    def __init__(self, name):
+    def __new__(cls, *args, **kwargs):
+        # This creates an instance specific class for the component
+        # this enables us to add properties to instances rather than
+        # all classes
+        return object.__new__(type(cls.__name__, (cls,), {}), *args, **kwargs)
+        
+    def __init__(self, name=None):
+        
+        self._optivis_component = None
         self.__name = name
         self._svgItem = None
         self._requested_node_names = []
@@ -88,17 +103,25 @@ class Component(object):
         self._params = []
         self.__removed = False
         self._default_fsig_param = None
+        self.optivisLabelContent = None
         
         # store a unique ID for this component
         global next_component_id
         self.__id = next_component_id
         next_component_id += 1
         
-        # This creates an instance specific class for the component
-        # this enables us to add properties to instances rather than
-        # all classes
-        cls = type(self)
-        self.__class__ = type(cls.__name__, (cls,), {})
+       
+    def __deepcopy__(self, memo):
+        """
+        When deep copying a kat object we need to take into account
+        the instance specific properties.
+        """
+        result = self.__class__.__new__(self.__class__)
+        result.__dict__ = copy.deepcopy(self.__dict__, memo)
+        
+        result.__update_node_setters             
+        
+        return result
         
     def _register_param(self, param):
         self._params.append(param)
@@ -210,18 +233,36 @@ class Component(object):
 
         self.__removed = True
     
-    def __deepcopy__(self, memo):
-        cls = self.__class__
-        result = cls.__new__(cls)
-        memo[id(self)] = result
+    def getOptivisParameterDict(self):
+        if len(self._params) == 0:
+            return None
             
-        for k, v in self.__dict__.items():
-            setattr(result, k, deepcopy(v, memo))
+        d = OrderedDict()
         
-        for p in result._params:
-            p._updateOwner(result)
+        for p in self._params:
+            d[p.name] = OptivisCanvasItemDataType.TEXTBOX
+        
+        return d
+        
+    def getOptivisTooltip(self):
+        tooltip = "Name: %s" % self.name
+        
+        for p in self._params:
+            if p.value is not None:
+                tooltip += "\n%s = %s" %(p.name, str(p.value))
+        
+        return tooltip
+
+    def setOptivisLabelContent(self):
+        """
+        Sets default Optivis label contents
+        """
+
+        if self.optivisLabelContent is None:
+            self.optivisLabelContent = {}
+
+        self.optivisLabelContent["Name"] = self.name
 
-        return result
 
 class AbstractMirrorComponent(Component):
     __metaclass__ = abc.ABCMeta
@@ -258,12 +299,12 @@ class AbstractMirrorComponent(Component):
         self.__rxmech = AttrParam("rxmech", self, rxmech)
         self.__rymech = AttrParam("rymech", self, rymech)
         
-        self.__z = Param("z", self, 0, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="z")
-        self.__rx = Param("rx", self, 0, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="rx")
-        self.__ry = Param("ry", self, 0, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="ry")
-        self.__Fz = Param("Fz", self, 0, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="Fz")
-        self.__Frx = Param("Frx", self, 0, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="Frx")
-        self.__Fry = Param("Fry", self, 0, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="Fry")
+        self.__z = Param("z", self, None, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="z")
+        self.__rx = Param("rx", self, None, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="rx")
+        self.__ry = Param("ry", self, None, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="ry")
+        self.__Fz = Param("Fz", self, None, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="Fz")
+        self.__Frx = Param("Frx", self, None, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="Frx")
+        self.__Fry = Param("Fry", self, None, canFsig=True, isPutable=False, isPutter=False, isTunable=False, fsig_name="Fry")
         
         self._default_fsig_param = self.__phi
         
@@ -450,6 +491,37 @@ class mirror(AbstractMirrorComponent):
                     
         return rtn
     
+    def getOptivisComponent(self):
+        self.setOptivisLabelContent()
+        
+        if self._optivis_component is None:
+            self._optivis_component = optivis_components.CavityMirror(name=self.name, aoi=0, tooltip=self.getOptivisTooltip, paramList=self.getOptivisParameterDict(), pykatObject=weakref.ref(self))
+            
+            lbl = optivis_label(text="", position=optivis_coord(0, -1), item=self._optivis_component)
+            lbl.content["Name"] = self.name
+            self._optivis_component.labels.append(lbl)
+        
+        return self._optivis_component
+    
+    def getOptivisNode(self, mode, kat_node):
+        mode = mode.lower()
+        
+        if mode != "input" and mode.lower() != "output":
+            raise pkex.BasePyKatException("Mode must be either input or output not %s" % mode)
+        
+        if mode == "input":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getInputNode("fr")
+            else:
+                return self._optivis_component.getInputNode("bk")
+                
+        elif mode == "output":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getOutputNode("fr")
+            else:
+                return self._optivis_component.getOutputNode("bk")
+          
+        
     def getQGraphicsItem(self):
         if not USE_GUI:
             raise NoGUIException
@@ -483,6 +555,39 @@ class beamSplitter(AbstractMirrorComponent):
                 else:
                     raise pkex.BasePyKatException("No attribute {0} for mirrors".format(key))
     
+    def getOptivisComponent(self):
+        self.setOptivisLabelContent()
+        
+        if self._optivis_component is None:
+            self._optivis_component = optivis_components.BeamSplitter(name=self.name, aoi=-self.alpha, tooltip=self.getOptivisTooltip, paramList=self.getOptivisParameterDict(), pykatObject=weakref.ref(self))
+        
+        return self._optivis_component
+    
+    def getOptivisNode(self, mode, kat_node):
+        mode = mode.lower()
+        
+        if mode != "input" and mode.lower() != "output":
+            raise pkex.BasePyKatException("Mode must be either input or output")
+        
+        if mode == "input":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getInputNode("frA")
+            elif kat_node is self.nodes[1]:
+                return self._optivis_component.getInputNode("frB")
+            elif kat_node is self.nodes[2]:
+                return self._optivis_component.getInputNode("bkB")
+            elif kat_node is self.nodes[3]:
+                return self._optivis_component.getInputNode("bkA")
+        elif mode == "output":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getOutputNode("frB")
+            elif kat_node is self.nodes[1]:
+                return self._optivis_component.getOutputNode("frA")
+            elif kat_node is self.nodes[2]:
+                return self._optivis_component.getOutputNode("bkA")
+            elif kat_node is self.nodes[3]:
+                return self._optivis_component.getOutputNode("bkB")
+                     
     @staticmethod
     def parseFinesseText(text):
         values = text.split()
@@ -579,6 +684,18 @@ class space(Component):
     @gy.setter
     def gy(self,value): self.__gy.value = SIfloat(value)
     
+    def connectingComponents(self):
+        """
+        Returns the two components that this space connects.
+        """
+        a = list(self.nodes[0].components + self.nodes[1].components)
+        a = [value for value in a if value != self]
+        
+        if len(a) != 2:
+            raise pkex.BasePyKatException("Space should only connect 2 components")
+            
+        return a
+        
     def parseAttributes(self, values):
         
         for key in values.keys():
@@ -803,6 +920,32 @@ class isolator(Component):
             
         return rtn
     
+    def getOptivisComponent(self):
+        self.setOptivisLabelContent()
+        
+        if self._optivis_component is None:
+            self._optivis_component = optivis_components.FaradayIsolator(name=self.name, tooltip=self.getOptivisTooltip, paramList=self.getOptivisParameterDict(), pykatObject=weakref.ref(self))
+        
+        return self._optivis_component
+    
+    def getOptivisNode(self, mode, kat_node):
+        mode = mode.lower()
+        
+        if mode != "input" and mode.lower() != "output":
+            raise pkex.BasePyKatException("Mode must be either input or output")
+        
+        if mode == "input":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getInputNode("fr")
+            elif kat_node is self.nodes[1]:
+                return self._optivis_component.getInputNode("bk")
+        elif mode == "output":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getnOutputNode("fr")
+            elif kat_node is self.nodes[1]:
+                return self._optivis_component.getOutputNode("bk")
+     
+     
     def getQGraphicsItem(self):
         if not USE_GUI:
             raise NoGUIException
@@ -848,6 +991,31 @@ class lens(Component):
             
         return rtn
     
+    def getOptivisComponent(self):
+        self.setOptivisLabelContent()
+        
+        if self._optivis_component is None:
+            self._optivis_component = optivis_components.ConvexLens(name=self.name, tooltip=self.getOptivisTooltip, paramList=self.getOptivisParameterDict(), pykatObject=weakref.ref(self))
+        
+        return self._optivis_component
+    
+    def getOptivisNode(self, mode, kat_node):
+        mode = mode.lower()
+        
+        if mode != "input" and mode.lower() != "output":
+            raise pkex.BasePyKatException("Mode must be either input or output")
+        
+        if mode == "input":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getInputNode("fr")
+            elif kat_node is self.nodes[1]:
+                return self._optivis_component.getInputNode("bk")
+        elif mode == "output":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getnOutputNode("fr")
+            elif kat_node is self.nodes[1]:
+                return self._optivis_component.getOutputNode("bk")
+                
     def getQGraphicsItem(self):
         if not USE_GUI:
             raise NoGUIException
@@ -929,6 +1097,31 @@ class modulator(Component):
             
         return rtn
         
+    def getOptivisComponent(self):
+        self.setOptivisLabelContent()
+        
+        if self._optivis_component is None:
+            self._optivis_component = optivis_components.ElectroopticModulator(name=self.name, tooltip=self.getOptivisTooltip, paramList=self.getOptivisParameterDict(), pykatObject=weakref.ref(self))
+            
+        return self._optivis_component
+    
+    def getOptivisNode(self, mode, kat_node):
+        mode = mode.lower()
+        
+        if mode != "input" and mode.lower() != "output":
+            raise pkex.BasePyKatException("Mode must be either input or output")
+        
+        if mode == "input":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getInputNode("fr")
+            elif kat_node is self.nodes[1]:
+                return self._optivis_component.getInputNode("bk")
+        elif mode == "output":
+            if kat_node is self.nodes[0]:
+                return self._optivis_component.getnOutputNode("fr")
+            elif kat_node is self.nodes[1]:
+                return self._optivis_component.getOutputNode("bk")
+                
     def getQGraphicsItem(self):
         if not USE_GUI:
             raise NoGUIException
@@ -999,6 +1192,28 @@ class laser(Component):
         
         return rtn
 
+    def getOptivisComponent(self):
+        self.setOptivisLabelContent()
+        
+        if self._optivis_component is None:
+            self._optivis_component = optivis_components.Laser(name=self.name, tooltip=self.getOptivisTooltip, paramList=self.getOptivisParameterDict(), pykatObject=weakref.ref(self))
+            lbl = optivis_label(text="", position=optivis_coord(0, -1), item=self._optivis_component)
+            lbl.content["Name"] = self.name
+            self._optivis_component.labels.append(lbl)
+            
+        return self._optivis_component
+    
+    def getOptivisNode(self, mode, kat_node):
+        mode = mode.lower()
+        
+        if mode != "input" and mode.lower() != "output":
+            raise pkex.BasePyKatException("Mode must be either input or output")
+        
+        if mode == "input":
+            return None
+        elif mode == "output":
+            return self._optivis_component.getOutputNode("out")
+                
     def getQGraphicsItem(self):
         if not USE_GUI:
             raise NoGUIException

pykat/detectors.py

@@ -15,7 +15,7 @@ if six.PY2:
 
 import abc
 from pykat.node_network import *
-from pykat.param import Param
+from pykat.param import Param, AttrParam
 from pykat.SIfloat import SIfloat
 
 import pykat.external.six as six
@@ -356,7 +356,13 @@ class bp(Detector1):
 
 class pd(Detector1):
 
-    def __init__(self, name, num_demods, node_name, senstype=None, alternate_beam=False, pdtype=None, **kwargs):
+    def __new__(cls, *args, **kwargs):
+        # This creates an instance specific class for the component
+        # this enables us to add properties to instances rather than
+        # all classes
+        return object.__new__(type(cls.__name__, (cls,), {}), *args, **kwargs)
+
+    def __init__(self, name=None, num_demods=1, node_name=None, senstype=None, alternate_beam=False, pdtype=None, **kwargs):
         BaseDetector.__init__(self, name, node_name)
         
         self.__num_demods = num_demods
@@ -402,12 +408,25 @@ class pd(Detector1):
             elif i<num_demods-1:
                 raise pkex.BasePyKatException("Missing demodulation phase {0} (phi{0})".format(i+1))
         
-        # define new class for assigning new attributes
-        cls = type(self)
-        self.__class__ = type(cls.__name__, (cls,), {})
    
         self.__set_demod_attrs()
 
+
+    def __deepcopy__(self, memo):
+        """
+        When deep copying a kat object we need to take into account
+        the instance specific properties.
+        """
+        result = pd(self.name, self.num_demods, self.node.name)
+        memo[id(self)] = result
+        result.__dict__ = copy.deepcopy(self.__dict__, memo)
+        # Find all properties in class we are copying
+        # and deep copy these to the new class instance
+        for x in self.__class__.__dict__.items():
+            if isinstance(x[1], property):
+                setattr(result.__class__, x[0], x[1])
+        return result       
+                
     @property
     def senstype(self): return self.__senstype
     @senstype.setter
@@ -666,7 +685,7 @@ class qnoised(pd):
 class qshot(pd):
     
     def __init__(self, name, num_demods, node_name, alternate_beam=False, **kwargs):
-        super(qnoised, self).__init__(name, num_demods, node_name, alternate_beam=alternate_beam, pdtype=None, senstype=None, **kwargs)
+        super(qshot, self).__init__(name, num_demods, node_name, alternate_beam=alternate_beam, pdtype=None, senstype=None, **kwargs)     
 
     @pd.pdtype.setter
     def pdtype(self, value):

pykat/node_network.py

@@ -23,6 +23,13 @@ from pykat.optics.gaussian_beams import beam_param
 from copy import deepcopy
 
 class NodeNetwork(object):
+
+    def __new__(cls, *args, **kwargs):
+    # This creates an instance specific class for the component
+    # this enables us to add properties to instances rather than
+    # all classes
+        return object.__new__(type(cls.__name__, (cls,), {}), *args, **kwargs)
+
     def __init__(self, kat):
         self.__nodes = {}
         self.__kat = kat
@@ -31,9 +38,6 @@ class NodeNetwork(object):
         self.__componentCallback = {}
         self.__node_id = 1
             
-        cls = type(self)
-        self.__class__ = type(cls.__name__, (cls,), {})
-    
     @property
     def kat(self): return self.__kat