Also make tree and options properties of the project

novelwriter/dialogs/docsplit.py

@@ -50,7 +50,6 @@ class GuiDocSplit(QDialog):
         self.mainConf   = novelwriter.CONFIG
         self.theParent  = theParent
         self.theProject = theParent.theProject
-        self.optState   = theParent.theProject.optState
 
         self.sourceItem = None
         self.sourceText = []
@@ -75,7 +74,7 @@ class GuiDocSplit(QDialog):
         self.splitLevel.addItem(self.tr("Split up to Header Level 3 (Scene)"),   3)
         self.splitLevel.addItem(self.tr("Split up to Header Level 4 (Section)"), 4)
         spIndex = self.splitLevel.findData(
-            self.optState.getInt("GuiDocSplit", "spLevel", 3)
+            self.theProject.options.getInt("GuiDocSplit", "spLevel", 3)
         )
         if spIndex != -1:
             self.splitLevel.setCurrentIndex(spIndex)
@@ -121,7 +120,7 @@ class GuiDocSplit(QDialog):
             ), nwAlert.ERROR)
             return False
 
-        srcItem = self.theProject.projTree[self.sourceItem]
+        srcItem = self.theProject.tree[self.sourceItem]
         if srcItem is None:
             self.theParent.makeAlert(self.tr(
                 "Could not parse source document."
@@ -184,7 +183,7 @@ class GuiDocSplit(QDialog):
 
             wTitle = wTitle.lstrip("#").strip()
             nHandle = self.theProject.newFile(wTitle, fHandle)
-            newItem = self.theProject.projTree[nHandle]
+            newItem = self.theProject.tree[nHandle]
             newItem.setStatus(srcItem.itemStatus)
             newItem.setImport(srcItem.itemImport)
             logger.verbose(
@@ -211,7 +210,7 @@ class GuiDocSplit(QDialog):
     def _doClose(self):
         """Close the dialog window without doing anything.
         """
-        self.optState.saveSettings()
+        self.theProject.options.saveSettings()
         self.close()
         return
 
@@ -232,7 +231,7 @@ class GuiDocSplit(QDialog):
         if self.sourceItem is None:
             return False
 
-        nwItem = self.theProject.projTree[self.sourceItem]
+        nwItem = self.theProject.tree[self.sourceItem]
         if nwItem is None:
             return False
 
@@ -249,7 +248,7 @@ class GuiDocSplit(QDialog):
             return False
 
         spLevel = self.splitLevel.currentData()
-        self.optState.setValue("GuiDocSplit", "spLevel", spLevel)
+        self.theProject.options.setValue("GuiDocSplit", "spLevel", spLevel)
         logger.debug(
             "Scanning document '%s' for headings level <= %d",
             self.sourceItem, spLevel