comparison view/Pane.cpp @ 256:c492902dba40

* Make shift+mousewheel scroll vertically (where applicable) and alt+mousewheel
  zoom vertically (where applicable).  Closes #1734844

 	    setCentreFrame(getModelsEndFrame());
 	} else {
 	    setCentreFrame(m_centreFrame - delta);
 	}
 
+    } else if (e->modifiers() & Qt::ShiftModifier) {
+
+        // Zoom vertically
+
+        if (m_vpan) {
+            m_vpan->scroll(e->delta() > 0);
+        }
+
+    } else if (e->modifiers() & Qt::AltModifier) {
+
+        // Zoom vertically
+
+        if (m_vthumb) {
+            m_vthumb->scroll(e->delta() > 0);
+        }
+
     } else {
 
 	// Zoom in or out
 
 	int newZoomLevel = m_zoomLevel;