- whenever a FlatCAM tool is activated, if the notebook side is hidden it will be unhidden

- reactivated the Voronoi classed
- added a new parameter named Offset in the Excellon tool table - work in progress

flatcamTools/ToolTransform.py

@@ -360,6 +360,11 @@ class ToolTransform(FlatCAMTool):
 
         FlatCAMTool.run(self)
         self.set_tool_ui()
+
+        # if the splitter us hidden, display it
+        if self.app.ui.splitter.sizes()[0] == 0:
+            self.app.ui.splitter.setSizes([1, 1])
+
         self.app.ui.notebook.setTabText(2, "Transform Tool")
 
     def install(self, icon=None, separator=None, **kwargs):