sw lok: fix width of the notes sidebar

The map mode is in general disabled during tiled rendering, so mouse
positions can be sent in using twips, but here we have to temporarily
enable it, otherwise the width will be returned always in pixels.

With this, the gray background of the sidebar has the proper width, not
e.g. fifteenth of the expected value (using default zoom).

Change-Id: I4380ee0ba6bcda97cf71735161dbdc826e7a2532
(cherry picked from commit 6c3dbdbc)

sw/source/uibase/docvw/PostItMgr.cxx

@@ -74,6 +74,7 @@
 
 #include <i18nlangtag/mslangid.hxx>
 #include <i18nlangtag/lang.h>
+#include <comphelper/lok.hxx>
 
 #include "annotsh.hxx"
 #include "swabstdlg.hxx"
@@ -1813,7 +1814,15 @@ unsigned long SwPostItMgr::GetSidebarWidth(bool bPx) const
     if (bPx)
         return aWidth;
     else
-        return mpEditWin->PixelToLogic(Size( aWidth ,0)).Width();
+    {
+        bool bEnableMapMode = comphelper::LibreOfficeKit::isActive() && !mpEditWin->IsMapModeEnabled();
+        if (bEnableMapMode)
+            mpEditWin->EnableMapMode();
+        long nRet = mpEditWin->PixelToLogic(Size(aWidth, 0)).Width();
+        if (bEnableMapMode)
+            mpEditWin->EnableMapMode(false);
+        return nRet;
+    }
 }
 
 unsigned long SwPostItMgr::GetSidebarBorderWidth(bool bPx) const