--- a/graphics/FBD_Objects.py	Thu Feb 01 18:09:34 2007 +0100
+++ b/graphics/FBD_Objects.py	Wed Feb 07 18:43:32 2007 +0100
@@ -42,21 +42,12 @@
     # Create a new block
     def __init__(self, parent, type, name, id = None, extension = 0, inputs = [], outputs = []):
         Graphic_Element.__init__(self, parent)
-        self.Type = type
         self.Name = name
         self.Id = id
-        # Find the block definition from type given and create the corresponding
-        # inputs and outputs
-        blocktype = GetBlockType(type)
-        if blocktype:
-            inputs = [input for input in blocktype["inputs"]]
-            outputs = [output for output in blocktype["outputs"]]
-            if blocktype["extensible"]:
-                start = int(inputs[-1][0].replace("IN", ""))
-                for i in xrange(extension - len(blocktype["inputs"])):
-                    start += 1
-                    inputs.append(("IN%d"%start, inputs[-1][1], input[-1][2]))
-        self.SetConnectors(inputs, outputs)
+        self.Extension = extension
+        self.Inputs = []
+        self.Outputs = []
+        self.SetType(type)
     
     # Destructor
     def __del__(self):
@@ -70,9 +61,9 @@
     # Unconnect all inputs and outputs
     def Clean(self):
         for input in self.Inputs:
-            input.UnConnect()
-        for output in self.Outputs:
-            output.UnConnect()
+            input.UnConnect(delete = True)
+        for output in self.Outputs:
+            output.UnConnect(delete = True)
     
     # Refresh the block bounding box
     def RefreshBoundingBox(self):
@@ -144,6 +135,22 @@
                 return output
         return None
     
+    # Changes the block type
+    def SetType(self, type):
+        self.Type = type
+        # Find the block definition from type given and create the corresponding
+        # inputs and outputs
+        blocktype = GetBlockType(type)
+        if blocktype:
+            inputs = [input for input in blocktype["inputs"]]
+            outputs = [output for output in blocktype["outputs"]]
+            if blocktype["extensible"]:
+                start = int(inputs[-1][0].replace("IN", ""))
+                for i in xrange(self.Extension - len(blocktype["inputs"])):
+                    start += 1
+                    inputs.append(("IN%d"%start, inputs[-1][1], input[-1][2]))
+        self.SetConnectors(inputs, outputs)
+    
     # Returns the block type
     def GetType(self):
         return self.Type
@@ -156,6 +163,14 @@
     def GetName(self):
         return self.Name
     
+    # Changes the extension name
+    def SetExtension(self, extension):
+        self.Extension = extension
+    
+    # Returs the extension name
+    def GetExtension(self):
+        return self.Extension
+    
     # Returns the block minimum size
     def GetMinSize(self):
         dc = wxClientDC(self.Parent)
@@ -176,6 +191,7 @@
     
     # Changes the block connectors
     def SetConnectors(self, inputs, outputs):
+        self.Clean()
         # Extract the inputs properties and create the corresponding connector
         self.Inputs = []
         for input_name, input_type, input_modifier in inputs:
@@ -194,6 +210,7 @@
             elif output_modifier != "none":
                 connector.SetEdge(output_modifier)
             self.Outputs.append(connector)
+        self.RefreshConnectors()
         self.RefreshBoundingBox()
     
     # Changes the negated property of the connector handled
@@ -210,6 +227,11 @@
             handle.SetEdge(edge)
             self.RefreshModel(False)
     
+    # Method called when a LeftDClick event have been generated
+    def OnLeftDClick(self, event, scaling):
+        # Edit the step properties
+        self.Parent.EditBlockContent(self)
+    
     # Method called when a RightUp event have been generated
     def OnRightUp(self, event, scaling):
         pos = GetScaledEventPosition(event, scaling)