diff -r 6f72513bc074 -r e7327ea490b4 LDViewer.py
--- a/LDViewer.py	Wed Mar 30 16:31:18 2011 +0200
+++ b/LDViewer.py	Wed Mar 30 17:52:07 2011 +0200
@@ -448,6 +448,46 @@
                 event.Skip()
 
 #-------------------------------------------------------------------------------
+#                  Model adding functions from Drop Target
+#-------------------------------------------------------------------------------
+
+    def AddVariableBlock(self, x, y, scaling, var_class, var_name, var_type):
+        if var_type == "BOOL":
+            id = self.GetNewId()
+            if var_class == INPUT:
+                contact = LD_Contact(self, CONTACT_NORMAL, var_name, id)
+                width, height = contact.GetMinSize()
+                if scaling is not None:
+                    x = round(float(x) / float(scaling[0])) * scaling[0]
+                    y = round(float(y) / float(scaling[1])) * scaling[1]
+                    width = round(float(width) / float(scaling[0]) + 0.5) * scaling[0]
+                    height = round(float(height) / float(scaling[1]) + 0.5) * scaling[1]
+                contact.SetPosition(x, y)
+                contact.SetSize(width, height)
+                self.AddBlock(contact)
+                self.Controler.AddEditedElementContact(self.GetTagName(), id)
+                self.RefreshContactModel(contact)
+            else:
+                coil = LD_Coil(self, COIL_NORMAL, var_name, id)
+                width, height = coil.GetMinSize()
+                if scaling is not None:
+                    x = round(float(x) / float(scaling[0])) * scaling[0]
+                    y = round(float(y) / float(scaling[1])) * scaling[1]
+                    width = round(float(width) / float(scaling[0]) + 0.5) * scaling[0]
+                    height = round(float(height) / float(scaling[1]) + 0.5) * scaling[1]
+                coil.SetPosition(x, y)
+                coil.SetSize(width, height)
+                self.AddBlock(coil)
+                self.Controler.AddEditedElementCoil(self.GetTagName(), id)
+                self.RefreshCoilModel(coil)
+            self.RefreshBuffer()
+            self.RefreshScrollBars()
+            self.RefreshVisibleElements()
+            self.Refresh(False)
+        else:
+            Viewer.AddVariableBlock(self, x, y, scaling, var_class, var_name, var_type)
+
+#-------------------------------------------------------------------------------
 #                          Adding element functions
 #-------------------------------------------------------------------------------