fix bug adding TC from job dialog.

When adding tool controllers from the job dialog, it will now
try to match the toolbit file with the currently selected library
and add use the toolnumber from there.  If no match is found,
it will autoincrement from the existing tool controllers
in the job

src/Mod/Path/PathScripts/PathJob.py

@@ -457,6 +457,11 @@ class ObjectJob:
             self.obj.Operations.Group = group
             op.Path.Center = self.obj.Operations.Path.Center
 
+    def nextToolNumber(self):
+        # returns the next available toolnumber in the job
+        group = self.obj.Tools.Group
+        return sorted([t.ToolNumber for t in group])[-1] + 1
+
     def addToolController(self, tc):
         group = self.obj.Tools.Group
         PathLog.debug("addToolController(%s): %s" % (tc.Label, [t.Label for t in group]))

src/Mod/Path/PathScripts/PathJobGui.py

@@ -27,11 +27,11 @@ import math
 import traceback
 from pivy import coin
 from PySide import QtCore, QtGui
+import json
 
 import FreeCAD
 import FreeCADGui
 
-import PathGui as PGui # ensure Path/Gui/Resources are loaded
 import PathScripts.PathJob as PathJob
 import PathScripts.PathJobCmd as PathJobCmd
 import PathScripts.PathJobDlg as PathJobDlg
@@ -520,7 +520,7 @@ class StockFromExistingEdit(StockEdit):
         stock = self.form.stockExisting.itemData(self.form.stockExisting.currentIndex())
         if not (hasattr(obj.Stock, 'Objects') and len(obj.Stock.Objects) == 1 and obj.Stock.Objects[0] == stock):
             if stock:
-                stock = PathJob.createResourceClone(obj, stock, self.StockLabelPrefix , 'Stock')
+                stock = PathJob.createResourceClone(obj, stock, self.StockLabelPrefix, 'Stock')
                 stock.ViewObject.Visibility = True
                 PathStock.SetupStockObject(stock, PathStock.StockType.Unknown)
                 stock.Proxy.execute(stock)
@@ -546,7 +546,7 @@ class StockFromExistingEdit(StockEdit):
         index = -1
         for i, solid in enumerate(self.candidates(obj)):
             self.form.stockExisting.addItem(solid.Label, solid)
-            label="{}-{}".format(self.StockLabelPrefix, solid.Label)
+            label = "{}-{}".format(self.StockLabelPrefix, solid.Label)
 
             if label == stockName:
                 index = i
@@ -864,13 +864,33 @@ class TaskPanel:
         self.toolControllerSelect()
 
     def toolControllerAdd(self):
+        # adding a TC from a toolbit directly.
+        # Try to find a tool number from the currently selected lib. Otherwise
+        # use next available number
+
         if PathPreferences.toolsUseLegacyTools():
             PathToolLibraryEditor.CommandToolLibraryEdit().edit(self.obj, self.updateToolController)
         else:
             tools = PathToolBitGui.LoadTools()
+
+            curLib = PathPreferences.lastFileToolLibrary()
+
+            library = None
+            if curLib is not None:
+                with open(curLib) as fp:
+                    library = json.load(fp)
+
             for tool in tools:
-                tc = PathToolControllerGui.Create(name=tool.Label, tool=tool)
+                toolNum = self.obj.Proxy.nextToolNumber()
+                if library is not None:
+                    for toolBit in library['tools']:
+
+                        if toolBit['path'] == tool.File:
+                            toolNum = toolBit['nr']
+
+                tc = PathToolControllerGui.Create(name=tool.Label, tool=tool, toolNumber=toolNum)
                 self.obj.Proxy.addToolController(tc)
+
             FreeCAD.ActiveDocument.recompute()
             self.updateToolController()