Improve doc changed checking and some code cleanup

nw/gui/doceditor.py

@@ -903,12 +903,13 @@ class GuiDocEditor(QTextEdit):
     ##
 
     @pyqtSlot(int, int, int)
-    def _docChange(self, thePos, charsRemoved, charsAdded):
+    def _docChange(self, thePos, chrRem, chrAdd):
         """Triggered by QTextDocument->contentsChanged. This also
         triggers the syntax highlighter.
         """
         self.lastEdit = time()
         self.lastFind = None
+
         if self.qDocument.characterCount() > nwConst.MAX_DOCSIZE:
             self.theParent.makeAlert((
                 "The document has grown too big and you cannot add more text to it. "
@@ -916,12 +917,16 @@ class GuiDocEditor(QTextEdit):
             ) % (nwConst.MAX_DOCSIZE/1.0e6), nwAlert.ERROR)
             self.undo()
             return
+
         if not self.docChanged:
-            self.setDocumentChanged(True)
+            self.setDocumentChanged(chrRem != 0 or chrAdd != 0)
+
         if not self.wcTimer.isActive():
             self.wcTimer.start()
-        if self.doReplace and charsAdded == 1:
+
+        if self.doReplace and chrAdd == 1:
             self._docAutoReplace(self.qDocument.findBlock(thePos))
+
         return
 
     @pyqtSlot("QPoint")

nw/gui/statusbar.py

@@ -179,13 +179,8 @@ class GuiMainStatus(QStatusBar):
     def setStats(self, pWC, sWC):
         """Set the current project statistics.
         """
-        self.statsText.setToolTip(
-            "Project word count (session change)"
-        )
-        self.statsText.setText(
-            f"Words: {pWC:n} ({sWC:+n})"
-        )
-
+        self.statsText.setText(f"Words: {pWC:n} ({sWC:+n})")
+        self.statsText.setToolTip("Project word count (session change)")
         return
 
     ##