Forward all scroll events in editor/viewer areas to their text area widgets (#1425)

novelwriter/gui/docviewer.py

@@ -47,6 +47,7 @@ from novelwriter.enum import nwItemType, nwDocAction, nwDocMode
 from novelwriter.error import logException
 from novelwriter.constants import nwUnicode
 from novelwriter.core.tohtml import ToHtml
+from novelwriter.extensions.wheeleventfilter import WheelEventFilter
 
 if TYPE_CHECKING:  # pragma: no cover
     from novelwriter.guimain import GuiMain
@@ -85,6 +86,10 @@ class GuiDocViewer(QTextBrowser):
         # Signals
         self.anchorClicked.connect(self._linkClicked)
 
+        # Install Event Filter for Mouse Wheel
+        self.wheelEventForwarder = WheelEventFilter(self)
+        self.installEventFilter(self.wheelEventForwarder)
+
         # Context Menu
         self.setContextMenuPolicy(Qt.CustomContextMenu)
         self.customContextMenuRequested.connect(self._openContextMenu)