tdf#67248 Use localized layer name only for display in UI

The internal management of layers was based on localized layer names.
So it could happen, that a custom layer name was a standard layer
name (which includes special handling) in one local and not in the
other. The patch changes the implementation to use the same real
layer names as in file, and use localized standard layer names only
for display in the UI.
Removes no longer needed RestoreLayerName()
Removes convertToInternalName(), ersatz convertToLocalizedName()
Removes no longer needed convertToExternalName()
Includes fix for tdf#119956 in addition

Change-Id: Iaedb73e4017e728f7ca3b0dc4aa7bb7f0e6ce6da
Reviewed-on: https://gerrit.libreoffice.org/60507
Tested-by: Jenkins
Reviewed-by: Regina Henschel <rb.henschel@t-online.de>

34 files changed, 285 insertions, 310 deletions

diff --git a/include/svtools/tabbar.hxx b/include/svtools/tabbar.hxx
index 0e5b93a5e861..94b3b029062f 100644
--- a/include/svtools/tabbar.hxx
+++ b/include/svtools/tabbar.hxx
@@ -376,6 +376,8 @@ private:
 
 protected:
     virtual void AddTabClick();
+    OUString     GetAuxiliaryText(sal_uInt16 nPageId) const; // needed in derived class LayerTabBar
+    void         SetAuxiliaryText(sal_uInt16 nPageId, const OUString& rText );
 
 public:
     static const sal_uInt16 APPEND;
@@ -405,7 +407,7 @@ public:
     virtual void    EndRenaming();
     virtual void    Mirror();
 
-    void            InsertPage( sal_uInt16 nPageId, const OUString& rText,
+    virtual void    InsertPage( sal_uInt16 nPageId, const OUString& rText,
                                 TabBarPageBits nBits = TabBarPageBits::NONE,
                                 sal_uInt16 nPos = TabBar::APPEND );
     void            RemovePage( sal_uInt16 nPageId );
@@ -474,7 +476,7 @@ public:
     void            SwitchPage( const Point& rPos );
     void            EndSwitchPage();
 
-    void            SetPageText( sal_uInt16 nPageId, const OUString& rText );
+    virtual void    SetPageText( sal_uInt16 nPageId, const OUString& rText );
     OUString        GetPageText( sal_uInt16 nPageId ) const;
     OUString        GetHelpText( sal_uInt16 nPageId ) const;
     OString         GetHelpId( sal_uInt16 nPageId ) const;
diff --git a/sd/source/core/drawdoc.cxx b/sd/source/core/drawdoc.cxx
index 3bb367c4bbd0..fae113555f12 100644
--- a/sd/source/core/drawdoc.cxx
+++ b/sd/source/core/drawdoc.cxx
@@ -100,6 +100,7 @@
 #include <undopage.hxx>
 #include <tools/tenccvt.hxx>
 #include <vcl/settings.hxx>
+#include <unokywds.hxx>
 
 using namespace ::sd;
 using namespace ::com::sun::star;
@@ -313,28 +314,34 @@ SdDrawDocument::SdDrawDocument(DocumentType eType, SfxObjectShell* pDrDocSh)
       *
       * We create the following default layers on all pages and master pages:
       *
-      * STR_LAYOUT    : default layer for drawing objects
+      * sUNO_LayerName_layout; "layout": default layer for drawing objects of normal pages
+      * localized by SdResId(STR_LAYER_LAYOUT)
       *
-      * STR_BCKGRND   : background of the master page
-      *                 (currently unused within normal pages)
+      * sUNO_LayerName_background; "background": background of the master page
+      * localized by SdResId(STR_LAYER_BCKGRND)
+      *           (currently unused within normal pages and not visible to users)
       *
-      * STR_BCKGRNDOBJ: objects on the background of master pages
-      *                 (currently unused within normal pages)
+      * sUNO_LayerName_background_objects; "backgroundobjects": objects on the background of master pages
+      * localized by SdResId(STR_LAYER_BCKGRNDOBJ)
+      *           (currently unused within normal pages)
       *
-      * STR_CONTROLS  : default layer for controls
+      * sUNO_LayerName_controls; "controls": default layer for controls
+      * localized by SdResId(STR_LAYER_CONTROLS)
+      *           (currently special handling in regard to z-order)
+      *
+      * sUNO_LayerName_measurelines; "measurelines" : default layer for measure lines
+      * localized by SdResId(STR_LAYER_MEASURELINES)
       */
 
     {
-        OUString aControlLayerName( SdResId(STR_LAYER_CONTROLS) );
-
         SdrLayerAdmin& rLayerAdmin = GetLayerAdmin();
-        rLayerAdmin.NewLayer( SdResId(STR_LAYER_LAYOUT) );
-        rLayerAdmin.NewLayer( SdResId(STR_LAYER_BCKGRND) );
-        rLayerAdmin.NewLayer( SdResId(STR_LAYER_BCKGRNDOBJ) );
-        rLayerAdmin.NewLayer( aControlLayerName );
-        rLayerAdmin.NewLayer( SdResId(STR_LAYER_MEASURELINES) );
+        rLayerAdmin.NewLayer( sUNO_LayerName_layout );
+        rLayerAdmin.NewLayer( sUNO_LayerName_background );
+        rLayerAdmin.NewLayer( sUNO_LayerName_background_objects );
+        rLayerAdmin.NewLayer( sUNO_LayerName_controls);
+        rLayerAdmin.NewLayer( sUNO_LayerName_measurelines );
 
-        rLayerAdmin.SetControlLayerName(aControlLayerName);
+        rLayerAdmin.SetControlLayerName(sUNO_LayerName_controls);
     }
 
 }
@@ -753,9 +760,6 @@ void SdDrawDocument::NewOrLoadCompleted(DocCreationMode eMode)
                 pPage->SetName( aName );
         }
 
-        // Create names of the default layers in the user's language
-        RestoreLayerNames();
-
         // Create names of the styles in the user's language
         static_cast<SdStyleSheetPool*>(mxStyleSheetPool.get())->UpdateStdNames();
 
diff --git a/sd/source/core/drawdoc2.cxx b/sd/source/core/drawdoc2.cxx
index 9a17fd2a36d0..11f30034c3e4 100644
--- a/sd/source/core/drawdoc2.cxx
+++ b/sd/source/core/drawdoc2.cxx
@@ -68,6 +68,7 @@
 #include "PageListWatcher.hxx"
 #include <vcl/virdev.hxx>
 #include <customshowlist.hxx>
+#include <unokywds.hxx>
 
 using namespace ::sd;
 
@@ -1342,8 +1343,8 @@ sal_uInt16 SdDrawDocument::DuplicatePage (sal_uInt16 nPageNum)
 
     // Get background flags
     SdrLayerAdmin& rLayerAdmin = GetLayerAdmin();
-    SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-    SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+    SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+    SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
     SdrLayerIDSet aVisibleLayers = pActualPage->TRG_GetMasterPageVisibleLayers();
 
     return DuplicatePage (
@@ -1486,8 +1487,8 @@ void SdDrawDocument::SetupNewPage (
     if (pPreviousPage != nullptr)
     {
         SdrLayerAdmin& rLayerAdmin = GetLayerAdmin();
-        SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-        SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+        SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+        SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
         SdrLayerIDSet aVisibleLayers = pPreviousPage->TRG_GetMasterPageVisibleLayers();
         aVisibleLayers.Set(aBckgrnd, bIsPageBack);
         aVisibleLayers.Set(aBckgrndObj, bIsPageObj);
diff --git a/sd/source/core/drawdoc4.cxx b/sd/source/core/drawdoc4.cxx
index d11495bd29bc..d4a56c215b29 100644
--- a/sd/source/core/drawdoc4.cxx
+++ b/sd/source/core/drawdoc4.cxx
@@ -1065,45 +1065,6 @@ void SdDrawDocument::ImpOnlineSpellCallback(SpellCallbackInfo const * pInfo, Sdr
         SfxViewFrame::Current()->GetDispatcher()->Execute( SID_AUTO_CORRECT_DLG, SfxCallMode::ASYNCHRON );
 }
 
-// Replace the unambiguous names of the default layers by their names in the
-// native language
-void SdDrawDocument::RestoreLayerNames()
-{
-    SdrLayerAdmin& rLayerAdmin = GetLayerAdmin();
-    sal_uInt16 nLayerCount = rLayerAdmin.GetLayerCount();
-
-    for (sal_uInt16 nLayer = 0; nLayer < nLayerCount; nLayer++)
-    {
-        SdrLayer* pLayer = rLayerAdmin.GetLayer(nLayer);
-
-        if (pLayer)
-        {
-            OUString aLayerName(pLayer->GetName());
-
-            if (aLayerName == "LAYER_LAYOUT")
-            {
-                pLayer->SetName(SdResId(STR_LAYER_LAYOUT));
-            }
-            else if (aLayerName == "LAYER_BCKGRND")
-            {
-                pLayer->SetName(SdResId(STR_LAYER_BCKGRND));
-            }
-            else if (aLayerName == "LAYER_BACKGRNDOBJ")
-            {
-                pLayer->SetName(SdResId(STR_LAYER_BCKGRNDOBJ));
-            }
-            else if (aLayerName == "LAYER_CONTROLS")
-            {
-                pLayer->SetName(SdResId(STR_LAYER_CONTROLS));
-            }
-            else if (aLayerName == "LAYER_MEASURELINES")
-            {
-                pLayer->SetName(SdResId(STR_LAYER_MEASURELINES));
-            }
-        }
-    }
-}
-
 // Return formatted page number (1, I, i, a, etc.)
 OUString SdDrawDocument::CreatePageNumValue(sal_uInt16 nNum) const
 {
diff --git a/sd/source/core/sdpage.cxx b/sd/source/core/sdpage.cxx
index 3901a13c008d..ce76e92a6d78 100644
--- a/sd/source/core/sdpage.cxx
+++ b/sd/source/core/sdpage.cxx
@@ -82,6 +82,7 @@
 #include <svx/sdr/contact/viewcontact.hxx>
 #include <svx/sdr/contact/objectcontact.hxx>
 #include <svx/unoapi.hxx>
+#include <unokywds.hxx>
 
 #include <set>
 
@@ -529,8 +530,7 @@ SdrObject* SdPage::CreatePresObj(PresObjKind eObjKind, bool bVertical, const ::t
             SdrLayerAdmin& rLayerAdmin(getSdrModelFromSdrPage().GetLayerAdmin());
 
             // background objects of the master page
-            pSdrObj->SetLayer( rLayerAdmin.
-                GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ)) );
+            pSdrObj->SetLayer( rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects) );
         }
 
         // Subscribe object at the style sheet
diff --git a/sd/source/filter/ppt/pptin.cxx b/sd/source/filter/ppt/pptin.cxx
index c885ed988ac5..16ed1e845c9a 100644
--- a/sd/source/filter/ppt/pptin.cxx
+++ b/sd/source/filter/ppt/pptin.cxx
@@ -76,6 +76,7 @@
 #include <DrawDocShell.hxx>
 #include <FrameView.hxx>
 #include <optsitem.hxx>
+#include <unokywds.hxx>
 
 #include <unotools/fltrcfg.hxx>
 #include <sfx2/progress.hxx>
@@ -251,8 +252,8 @@ bool ImplSdPPTImport::Import()
     const_cast<EditEngine&>(rOutl.GetEditEngine()).SetControlWord( nControlWord );
 
     SdrLayerAdmin& rAdmin = mpDoc->GetLayerAdmin();
-    mnBackgroundLayerID = rAdmin.GetLayerID( SdResId( STR_LAYER_BCKGRND ) );
-    mnBackgroundObjectsLayerID = rAdmin.GetLayerID( SdResId( STR_LAYER_BCKGRNDOBJ ) );
+    mnBackgroundLayerID = rAdmin.GetLayerID( sUNO_LayerName_background );
+    mnBackgroundObjectsLayerID = rAdmin.GetLayerID( sUNO_LayerName_background_objects );
 
     ::sd::DrawDocShell* pDocShell = mpDoc->GetDocSh();
     if ( pDocShell )
diff --git a/sd/source/ui/accessibility/AccessibleDocumentViewBase.cxx b/sd/source/ui/accessibility/AccessibleDocumentViewBase.cxx
index bf9fd9b89f7a..ccb908089a0e 100644
--- a/sd/source/ui/accessibility/AccessibleDocumentViewBase.cxx
+++ b/sd/source/ui/accessibility/AccessibleDocumentViewBase.cxx
@@ -707,11 +707,12 @@ uno::Any SAL_CALL AccessibleDocumentViewBase::getExtendedAttributes()
         {
             sName = "page-name:";
             sValue = sName;
+            OUString sLayerName(pDrViewSh->GetLayerTabControl()->GetLayerName(pDrViewSh->GetLayerTabControl()->GetCurPageId()) );
             sDisplay = pDrViewSh->GetLayerTabControl()->GetPageText(pDrViewSh->GetLayerTabControl()->GetCurPageId());
             if( pDoc )
             {
                 SdrLayerAdmin& rLayerAdmin = pDoc->GetLayerAdmin();
-                SdrLayer* aSdrLayer = rLayerAdmin.GetLayer(sDisplay);
+                SdrLayer* aSdrLayer = rLayerAdmin.GetLayer(sLayerName);
                 if( aSdrLayer )
                 {
                     OUString layerAltText = aSdrLayer->GetTitle();
diff --git a/sd/source/ui/dlg/LayerTabBar.cxx b/sd/source/ui/dlg/LayerTabBar.cxx
index 56de16045ab8..fdd45ddcee68 100644
--- a/sd/source/ui/dlg/LayerTabBar.cxx
+++ b/sd/source/ui/dlg/LayerTabBar.cxx
@@ -35,6 +35,7 @@
 #include <View.hxx>
 #include <drawdoc.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <DrawDocShell.hxx>
 #include <drawview.hxx>
 #include <undolayer.hxx>
@@ -66,6 +67,71 @@ void LayerTabBar::dispose()
     TabBar::dispose();
 }
 
+OUString LayerTabBar::convertToLocalizedName(const OUString& rName)
+{
+    if ( rName == sUNO_LayerName_background )
+        return SdResId( STR_LAYER_BCKGRND );
+
+    if ( rName == sUNO_LayerName_background_objects )
+        return SdResId( STR_LAYER_BCKGRNDOBJ );
+
+    if ( rName == sUNO_LayerName_layout )
+        return SdResId( STR_LAYER_LAYOUT );
+
+    if ( rName == sUNO_LayerName_controls )
+        return SdResId( STR_LAYER_CONTROLS );
+
+    if ( rName == sUNO_LayerName_measurelines )
+        return SdResId( STR_LAYER_MEASURELINES );
+
+    return rName;
+}
+
+// Use a method name, that is specific to LayerTabBar to make code better readable
+OUString LayerTabBar::GetLayerName(sal_uInt16 nPageId) const
+{
+    return GetAuxiliaryText(nPageId);
+}
+
+void LayerTabBar::SetLayerName( sal_uInt16 nPageId, const OUString& rText )
+{
+    SetAuxiliaryText(nPageId, rText);
+}
+
+// Here "Page" is a tab in the LayerTabBar.
+void LayerTabBar::InsertPage( sal_uInt16 nPageId, const OUString& rText,
+                                TabBarPageBits nBits, sal_uInt16 nPos)
+{
+    OUString sLocalizedName(convertToLocalizedName(rText));
+    TabBar::InsertPage(nPageId, sLocalizedName, nBits, nPos );
+    SetLayerName(nPageId, rText);
+}
+
+void LayerTabBar::SetPageText( sal_uInt16 nPageId, const OUString& rText )
+{
+    OUString sLocalizedName(convertToLocalizedName(rText));
+    SetLayerName(nPageId, rText);
+    TabBar::SetPageText(nPageId, sLocalizedName);
+}
+
+bool LayerTabBar::IsLocalizedNameOfStandardLayer(const OUString& rName)
+{
+    return (   rName == SdResId(STR_LAYER_LAYOUT)
+            || rName == SdResId(STR_LAYER_CONTROLS)
+            || rName == SdResId(STR_LAYER_MEASURELINES)
+            || rName == SdResId(STR_LAYER_BCKGRND)
+            || rName == SdResId(STR_LAYER_BCKGRNDOBJ) );
+}
+
+bool LayerTabBar::IsRealNameOfStandardLayer(const OUString& rName)
+{
+    return (   rName == sUNO_LayerName_layout
+            || rName == sUNO_LayerName_controls
+            || rName == sUNO_LayerName_measurelines
+            || rName == sUNO_LayerName_background
+            || rName == sUNO_LayerName_background_objects );
+}
+
 void LayerTabBar::Select()
 {
     SfxDispatcher* pDispatcher = pDrViewSh->GetViewFrame()->GetDispatcher();
@@ -76,23 +142,32 @@ void LayerTabBar::MouseButtonDown(const MouseEvent& rMEvt)
 {
     bool bSetPageID=false;
 
-    if (rMEvt.IsLeft() && !rMEvt.IsMod2())
+    if (rMEvt.IsLeft())
     {
         Point aPosPixel = rMEvt.GetPosPixel();
-        sal_uInt16 aLayerId = GetPageId( PixelToLogic(aPosPixel) );
-
-        if (aLayerId == 0)
+        sal_uInt16 aTabId = GetPageId( PixelToLogic(aPosPixel) );
+        if (aTabId == 0)
         {
             SfxDispatcher* pDispatcher = pDrViewSh->GetViewFrame()->GetDispatcher();
             pDispatcher->Execute(SID_INSERTLAYER, SfxCallMode::SYNCHRON);
 
             bSetPageID=true;
         }
+        else if (rMEvt.IsMod2())
+        {
+            // direct editing of tab text
+            // make sure the clicked tab is the current tab otherwise Edit() acts on the wrong tab
+            if ( aTabId != GetCurPageId())
+            {
+                MouseEvent aSyntheticEvent (rMEvt.GetPosPixel(), 1, MouseEventModifiers::SYNTHETIC, MOUSE_LEFT, 0);
+                TabBar::MouseButtonDown(aSyntheticEvent);
+            }
+        }
         else if (rMEvt.IsMod1() || rMEvt.IsShift())
         {
             // keyboard Shortcuts to change layer attributes
 
-            OUString aName(GetPageText(aLayerId));
+            OUString aName(GetLayerName(aTabId));
             SdrPageView* pPV = pDrViewSh->GetView()->GetSdrPageView();
 
             // Save old state
@@ -195,8 +270,8 @@ sal_Int8 LayerTabBar::AcceptDrop( const AcceptDropEvent& rEvt )
     if( !pDrViewSh->GetDocSh()->IsReadOnly() )
     {
         Point         aPos( PixelToLogic( rEvt.maPosPixel ) );
-        SdrLayerID    nLayerId = pDrViewSh->GetView()->GetDoc().GetLayerAdmin().GetLayerID(
-            GetPageText( GetPageId( aPos ) ) );
+        OUString      sLayerName( GetLayerName(GetPageId(aPos)) );
+        SdrLayerID    nLayerId = pDrViewSh->GetView()->GetDoc().GetLayerAdmin().GetLayerID(sLayerName);
 
         nRet = pDrViewSh->AcceptDrop( rEvt, *this, nullptr, SDRPAGE_NOTFOUND, nLayerId );
 
@@ -211,8 +286,10 @@ sal_Int8 LayerTabBar::AcceptDrop( const AcceptDropEvent& rEvt )
  */
 sal_Int8 LayerTabBar::ExecuteDrop( const ExecuteDropEvent& rEvt )
 {
-    SdrLayerID      nLayerId = pDrViewSh->GetView()->GetDoc().GetLayerAdmin().GetLayerID(
-        GetPageText( GetPageId( PixelToLogic( rEvt.maPosPixel ) ) ) );
+    Point         aPos( PixelToLogic(rEvt.maPosPixel) );
+    OUString      sLayerName( GetLayerName(GetPageId(aPos)) );
+    SdrLayerID    nLayerId = pDrViewSh->GetView()->GetDoc().GetLayerAdmin().GetLayerID(sLayerName);
+
     sal_Int8        nRet = pDrViewSh->ExecuteDrop( rEvt, *this, nullptr, SDRPAGE_NOTFOUND, nLayerId );
 
     EndSwitchPage();
@@ -233,18 +310,11 @@ void  LayerTabBar::Command(const CommandEvent& rCEvt)
 bool LayerTabBar::StartRenaming()
 {
     bool bOK = true;
-    OUString aLayerName = GetPageText( GetEditPageId() );
-    OUString aLayoutLayer = SdResId(STR_LAYER_LAYOUT);
-    OUString aControlsLayer = SdResId(STR_LAYER_CONTROLS);
-    OUString aMeasureLinesLayer = SdResId(STR_LAYER_MEASURELINES);
-    OUString aBackgroundLayer = SdResId(STR_LAYER_BCKGRND);
-    OUString aBackgroundObjLayer = SdResId(STR_LAYER_BCKGRNDOBJ);
-
-    if ( aLayerName == aLayoutLayer       || aLayerName == aControlsLayer  ||
-         aLayerName == aMeasureLinesLayer ||
-         aLayerName == aBackgroundLayer   || aLayerName == aBackgroundObjLayer )
+    OUString aLayerName = GetLayerName( GetEditPageId() );
+
+    if ( IsRealNameOfStandardLayer(aLayerName))
     {
-        // It is not allowed to change this names
+        // It is not allowed to change these names
         bOK = false;
     }
     else
@@ -274,7 +344,7 @@ TabBarAllowRenamingReturnCode LayerTabBar::AllowRenaming()
     if (aNewName.isEmpty() ||
         (rLayerAdmin.GetLayer( aNewName ) && aLayerName != aNewName) )
     {
-        // Name already exists
+        // Name already exists.
         std::unique_ptr<weld::MessageDialog> xWarn(Application::CreateMessageDialog(pDrViewSh->GetViewFrame()->GetWindow().GetFrameWeld(),
                                                    VclMessageType::Warning, VclButtonsType::Ok,
                                                    SdResId(STR_WARN_NAME_DUPLICATE)));
@@ -284,17 +354,9 @@ TabBarAllowRenamingReturnCode LayerTabBar::AllowRenaming()
 
     if (bOK)
     {
-        OUString aLayoutLayer = SdResId(STR_LAYER_LAYOUT);
-        OUString aControlsLayer = SdResId(STR_LAYER_CONTROLS);
-        OUString aMeasureLinesLayer = SdResId(STR_LAYER_MEASURELINES);
-        OUString aBackgroundLayer = SdResId(STR_LAYER_BCKGRND);
-        OUString aBackgroundObjLayer = SdResId(STR_LAYER_BCKGRNDOBJ);
-
-        if ( aNewName == aLayoutLayer       || aNewName == aControlsLayer  ||
-             aNewName == aMeasureLinesLayer ||
-             aNewName == aBackgroundLayer   || aNewName == aBackgroundObjLayer )
+        if ( IsLocalizedNameOfStandardLayer(aNewName) || IsRealNameOfStandardLayer(aNewName) )
         {
-            // It is not allowed to use his names
+            // Standard layer names may not be changed.
             bOK = false;
         }
     }
diff --git a/sd/source/ui/func/fuconrec.cxx b/sd/source/ui/func/fuconrec.cxx
index bc7c814d562a..4b33fb965830 100644
--- a/sd/source/ui/func/fuconrec.cxx
+++ b/sd/source/ui/func/fuconrec.cxx
@@ -59,6 +59,7 @@
 #include <Window.hxx>
 #include <stlpool.hxx>
 #include <drawdoc.hxx>
+#include <unokywds.hxx>
 
 #include <strings.hrc>
 
@@ -233,8 +234,7 @@ bool FuConstructRectangle::MouseButtonUp(const MouseEvent& rMEvt)
             if(SID_DRAW_MEASURELINE == nSlotId)
             {
                 SdrLayerAdmin& rAdmin = mpDoc->GetLayerAdmin();
-                OUString aStr(SdResId(STR_LAYER_MEASURELINES));
-                pObj->SetLayer(rAdmin.GetLayerID(aStr));
+                pObj->SetLayer(rAdmin.GetLayerID(sUNO_LayerName_measurelines));
             }
 
             // init text position when vertical caption object is created
@@ -493,8 +493,7 @@ void FuConstructRectangle::SetAttributes(SfxItemSet& rAttr, SdrObject* pObj)
         }
 
         SdrLayerAdmin& rAdmin = mpDoc->GetLayerAdmin();
-        OUString aStr(SdResId(STR_LAYER_MEASURELINES));
-        pObj->SetLayer(rAdmin.GetLayerID(aStr));
+        pObj->SetLayer(rAdmin.GetLayerID(sUNO_LayerName_measurelines));
     }
 }
 
diff --git a/sd/source/ui/func/fuconuno.cxx b/sd/source/ui/func/fuconuno.cxx
index ca9f9c8eed80..c940dca65bca 100644
--- a/sd/source/ui/func/fuconuno.cxx
+++ b/sd/source/ui/func/fuconuno.cxx
@@ -37,7 +37,7 @@
 #include <ViewShellBase.hxx>
 #include <ToolBarManager.hxx>
 #include <drawdoc.hxx>
-#include <sdresid.hxx>
+#include <unokywds.hxx>
 
 
 namespace sd {
@@ -122,7 +122,7 @@ void FuConstructUnoControl::Activate()
     mpWindow->SetPointer( aNewPointer );
 
     aOldLayer = mpView->GetActiveLayer();
-    mpView->SetActiveLayer( SdResId(STR_LAYER_CONTROLS) );
+    mpView->SetActiveLayer(sUNO_LayerName_controls);
 
     FuConstruct::Activate();
 }
diff --git a/sd/source/ui/inc/LayerTabBar.hxx b/sd/source/ui/inc/LayerTabBar.hxx
index 496f3e9b7865..ffc9071999f1 100644
--- a/sd/source/ui/inc/LayerTabBar.hxx
+++ b/sd/source/ui/inc/LayerTabBar.hxx
@@ -53,6 +53,27 @@ public:
     */
     void SendDeactivatePageEvent();
 
+    // Expects not-localized, real layer name in rText. Generates a localized layer name
+    // that will be displayed on the tab of the LayerTabBar and writes the real name
+    // to maAuxiliaryText. In case you want no entry in maAuxiliaryText, use method from TabBar.
+    virtual void        InsertPage( sal_uInt16 nPageId, const OUString& rText,
+                                TabBarPageBits nBits = TabBarPageBits::NONE,
+                                sal_uInt16 nPos = TabBar::APPEND ) override;
+    virtual void        SetPageText( sal_uInt16 nPageId, const OUString& rText ) override;
+
+    // Returns the real layer name if exists and empty OUString otherwise.
+    OUString            GetLayerName(sal_uInt16 nPageId) const;
+
+    // Used e.g. in DeleteActualLayer() to test whether deleting is allowed.
+    static bool IsRealNameOfStandardLayer(const OUString& rName);
+
+    // Used e.g. in validity test of user entered names
+    static bool IsLocalizedNameOfStandardLayer(const OUString& rName);
+
+    // In case rName is one of the sUNO_LayerName_*, it generates a localized name,
+    // otherwise it returns value of rName.
+    static OUString convertToLocalizedName(const OUString& rName);
+
 private:
     DrawViewShell* pDrViewSh;
 
@@ -72,6 +93,9 @@ private:
     // DropTargetHelper
     virtual sal_Int8    AcceptDrop( const AcceptDropEvent& rEvt ) override;
     virtual sal_Int8    ExecuteDrop( const ExecuteDropEvent& rEvt ) override;
+
+    // Expects not-localized, real layer name in rText and writes it to maAuxiliaryText.
+    void SetLayerName( sal_uInt16 nPageId, const OUString& rText );
 };
 
 } // end of namespace sd
diff --git a/sd/source/ui/sidebar/LayoutMenu.cxx b/sd/source/ui/sidebar/LayoutMenu.cxx
index c2e597551f86..0f623c705a3f 100644
--- a/sd/source/ui/sidebar/LayoutMenu.cxx
+++ b/sd/source/ui/sidebar/LayoutMenu.cxx
@@ -29,6 +29,7 @@
 
 #include <sdpage.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <bitmaps.hlst>
 #include <tools/SlotStateListener.hxx>
 #include <DrawController.hxx>
@@ -454,10 +455,8 @@ SfxRequest LayoutMenu::CreateRequest (
     do
     {
         SdrLayerAdmin& rLayerAdmin (mrBase.GetDocument()->GetLayerAdmin());
-        SdrLayerID aBackground (rLayerAdmin.GetLayerID(
-            SdResId(STR_LAYER_BCKGRND)));
-        SdrLayerID aBackgroundObject (rLayerAdmin.GetLayerID(
-            SdResId(STR_LAYER_BCKGRNDOBJ)));
+        SdrLayerID aBackground (rLayerAdmin.GetLayerID(sUNO_LayerName_background));
+        SdrLayerID aBackgroundObject (rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects));
         ViewShell* pViewShell = mrBase.GetMainViewShell().get();
         if (pViewShell == nullptr)
             break;
diff --git a/sd/source/ui/slidesorter/controller/SlsSlotManager.cxx b/sd/source/ui/slidesorter/controller/SlsSlotManager.cxx
index b95af6f2b617..11b222d0a0d1 100644
--- a/sd/source/ui/slidesorter/controller/SlsSlotManager.cxx
+++ b/sd/source/ui/slidesorter/controller/SlsSlotManager.cxx
@@ -51,6 +51,7 @@
 #include <app.hrc>
 #include <strings.hrc>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <drawdoc.hxx>
 #include <DrawDocShell.hxx>
 #include <ViewShellBase.hxx>
@@ -940,8 +941,8 @@ bool SlotManager::RenameSlideFromDrawViewShell( sal_uInt16 nPageId, const OUStri
             // Undo
             SdPage* pUndoPage = pPageToRename;
             SdrLayerAdmin &  rLayerAdmin = pDocument->GetLayerAdmin();
-            SdrLayerID nBackground = rLayerAdmin.GetLayerID( SdResId( STR_LAYER_BCKGRND ) );
-            SdrLayerID nBgObj = rLayerAdmin.GetLayerID( SdResId( STR_LAYER_BCKGRNDOBJ ) );
+            SdrLayerID nBackground = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+            SdrLayerID nBgObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
             SdrLayerIDSet aVisibleLayers = pPageToRename->TRG_GetMasterPageVisibleLayers();
 
             // (#67720#)
diff --git a/sd/source/ui/unoidl/unolayer.cxx b/sd/source/ui/unoidl/unolayer.cxx
index 2096f4be704e..0a42ecdad7b3 100644
--- a/sd/source/ui/unoidl/unolayer.cxx
+++ b/sd/source/ui/unoidl/unolayer.cxx
@@ -75,62 +75,6 @@ static const SvxItemPropertySet* ImplGetSdLayerPropertySet()
     return &aSDLayerPropertySet_Impl;
 }
 
-OUString SdLayer::convertToInternalName( const OUString& rName )
-{
-    if ( rName == sUNO_LayerName_background )
-    {
-        return SdResId( STR_LAYER_BCKGRND );
-    }
-    else if ( rName == sUNO_LayerName_background_objects )
-    {
-        return  SdResId( STR_LAYER_BCKGRNDOBJ );
-    }
-    else if ( rName == sUNO_LayerName_layout )
-    {
-        return  SdResId( STR_LAYER_LAYOUT );
-    }
-    else if ( rName == sUNO_LayerName_controls )
-    {
-        return  SdResId( STR_LAYER_CONTROLS );
-    }
-    else if ( rName == sUNO_LayerName_measurelines )
-    {
-        return  SdResId( STR_LAYER_MEASURELINES );
-    }
-    else
-    {
-        return rName;
-    }
-}
-
-OUString SdLayer::convertToExternalName( const OUString& rName )
-{
-    if( rName == SdResId( STR_LAYER_BCKGRND ) )
-    {
-        return OUString( sUNO_LayerName_background );
-    }
-    else if( rName == SdResId( STR_LAYER_BCKGRNDOBJ ) )
-    {
-        return OUString( sUNO_LayerName_background_objects );
-    }
-    else if( rName == SdResId( STR_LAYER_LAYOUT ) )
-    {
-        return OUString( sUNO_LayerName_layout );
-    }
-    else if( rName == SdResId( STR_LAYER_CONTROLS ) )
-    {
-        return OUString( sUNO_LayerName_controls );
-    }
-    else if( rName == SdResId( STR_LAYER_MEASURELINES ) )
-    {
-        return OUString( sUNO_LayerName_measurelines );
-    }
-    else
-    {
-        return rName;
-    }
-}
-
 SdLayer::SdLayer(SdLayerManager* pLayerManager_, SdrLayer* pSdrLayer_)
 : mxLayerManager(pLayerManager_)
 , pLayer(pSdrLayer_)
@@ -208,7 +152,7 @@ void SAL_CALL SdLayer::setPropertyValue( const OUString& aPropertyName, const un
         if(!(aValue >>= aName))
             throw lang::IllegalArgumentException();
 
-        pLayer->SetName(SdLayer::convertToInternalName( aName ) );
+        pLayer->SetName(aName);
         mxLayerManager->UpdateLayerView();
         break;
     }
@@ -265,7 +209,7 @@ uno::Any SAL_CALL SdLayer::getPropertyValue( const OUString& PropertyName )
         break;
     case WID_LAYER_NAME:
     {
-        OUString aRet( SdLayer::convertToExternalName( pLayer->GetName() ) );
+        OUString aRet(pLayer->GetName());
         aValue <<= aRet;
         break;
     }
@@ -614,7 +558,7 @@ uno::Any SAL_CALL SdLayerManager::getByName( const OUString& aName )
         throw lang::DisposedException();
 
     SdrLayerAdmin& rLayerAdmin = mpModel->mpDoc->GetLayerAdmin();
-    SdrLayer* pLayer = rLayerAdmin.GetLayer( SdLayer::convertToInternalName( aName ) );
+    SdrLayer* pLayer = rLayerAdmin.GetLayer(aName);
     if( pLayer == nullptr )
         throw container::NoSuchElementException();
 
@@ -639,7 +583,7 @@ uno::Sequence< OUString > SAL_CALL SdLayerManager::getElementNames()
     {
         SdrLayer* pLayer = rLayerAdmin.GetLayer( nLayer );
         if( pLayer )
-            *pStrings++ = SdLayer::convertToExternalName( pLayer->GetName() );
+            *pStrings++ = pLayer->GetName();
     }
 
     return aSeq;
@@ -654,7 +598,7 @@ sal_Bool SAL_CALL SdLayerManager::hasByName( const OUString& aName )
 
     SdrLayerAdmin& rLayerAdmin = mpModel->mpDoc->GetLayerAdmin();
 
-    return nullptr != rLayerAdmin.GetLayer( SdLayer::convertToInternalName( aName ) );
+    return nullptr != rLayerAdmin.GetLayer(aName);
 }
 
 // XElementAccess
diff --git a/sd/source/ui/unoidl/unolayer.hxx b/sd/source/ui/unoidl/unolayer.hxx
index 4388105c6c4e..a8ea2448f519 100644
--- a/sd/source/ui/unoidl/unolayer.hxx
+++ b/sd/source/ui/unoidl/unolayer.hxx
@@ -55,9 +55,6 @@ public:
     // intern
     SdrLayer* GetSdrLayer() const throw() { return pLayer; }
 
-    static OUString convertToInternalName( const OUString& rName );
-    static OUString convertToExternalName( const OUString& rName );
-
     // uno helper
     UNO3_GETIMPLEMENTATION_DECL( SdLayer )
 
diff --git a/sd/source/ui/unoidl/unomodel.cxx b/sd/source/ui/unoidl/unomodel.cxx
index 2ba00268001c..bc9553287cec 100644
--- a/sd/source/ui/unoidl/unomodel.cxx
+++ b/sd/source/ui/unoidl/unomodel.cxx
@@ -471,8 +471,8 @@ SdPage* SdXImpressDocument::InsertSdPage( sal_uInt16 nPage, bool bDuplicate )
 {
     sal_uInt16 nPageCount = mpDoc->GetSdPageCount( PageKind::Standard );
     SdrLayerAdmin& rLayerAdmin = mpDoc->GetLayerAdmin();
-    SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-    SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+    SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+    SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
 
     SdPage* pStandardPage = nullptr;
 
@@ -531,8 +531,8 @@ SdPage* SdXImpressDocument::InsertSdPage( sal_uInt16 nPage, bool bDuplicate )
             pStandardPage->SetAutoLayout(AUTOLAYOUT_NONE, true );
         }
 
-        aBckgrnd = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-        aBckgrndObj = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+        aBckgrnd = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+        aBckgrndObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
         aVisibleLayers.Set(aBckgrnd, bIsPageBack);
         aVisibleLayers.Set(aBckgrndObj, bIsPageObj);
         pStandardPage->TRG_SetMasterPageVisibleLayers(aVisibleLayers);
diff --git a/sd/source/ui/unoidl/unoobj.cxx b/sd/source/ui/unoidl/unoobj.cxx
index b24a6e5fd4df..18439a352df0 100644
--- a/sd/source/ui/unoidl/unoobj.cxx
+++ b/sd/source/ui/unoidl/unoobj.cxx
@@ -387,16 +387,6 @@ uno::Any SAL_CALL SdXShape::getPropertyDefault( const OUString& aPropertyName )
     else
     {
         uno::Any aRet( mpShape->_getPropertyDefault(aPropertyName) );
-
-        if ( aPropertyName == sUNO_shape_layername )
-        {
-            OUString aName;
-            if( aRet >>= aName )
-            {
-                aName = SdLayer::convertToExternalName( aName );
-                aRet <<= aName;
-            }
-        }
         return aRet;
     }
 }
@@ -660,17 +650,6 @@ void SAL_CALL SdXShape::setPropertyValue( const OUString& aPropertyName, const c
     else
     {
         uno::Any aAny( aValue );
-
-        if ( aPropertyName == sUNO_shape_layername )
-        {
-            OUString aName;
-            if( aAny >>= aName )
-            {
-                aName = SdLayer::convertToInternalName( aName );
-                aAny <<= aName;
-            }
-        }
-
         mpShape->_setPropertyValue(aPropertyName, aAny);
     }
 
@@ -815,16 +794,6 @@ css::uno::Any SAL_CALL SdXShape::getPropertyValue( const OUString& PropertyName
     else
     {
         aRet = mpShape->_getPropertyValue(PropertyName);
-
-        if ( PropertyName == sUNO_shape_layername )
-        {
-            OUString aName;
-            if( aRet >>= aName )
-            {
-                aName = SdLayer::convertToExternalName( aName );
-                aRet <<= aName;
-            }
-        }
     }
 
     return aRet;
diff --git a/sd/source/ui/unoidl/unopage.cxx b/sd/source/ui/unoidl/unopage.cxx
index 95aec6b9b17e..fd703a97b9ce 100644
--- a/sd/source/ui/unoidl/unopage.cxx
+++ b/sd/source/ui/unoidl/unopage.cxx
@@ -764,7 +764,7 @@ void SAL_CALL SdGenericDrawPage::setPropertyValue( const OUString& aPropertyName
                 {
                     SdrLayerAdmin& rLayerAdmin = rDoc.GetLayerAdmin();
                     SdrLayerIDSet aVisibleLayers = pPage->TRG_GetMasterPageVisibleLayers();
-                    aVisibleLayers.Set(rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND)), bVisible);
+                    aVisibleLayers.Set(rLayerAdmin.GetLayerID(sUNO_LayerName_background), bVisible);
                     pPage->TRG_SetMasterPageVisibleLayers(aVisibleLayers);
                 }
             }
@@ -784,7 +784,7 @@ void SAL_CALL SdGenericDrawPage::setPropertyValue( const OUString& aPropertyName
                 {
                     SdrLayerAdmin& rLayerAdmin = rDoc.GetLayerAdmin();
                     SdrLayerIDSet aVisibleLayers = pPage->TRG_GetMasterPageVisibleLayers();
-                    aVisibleLayers.Set(rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ)), bVisible);
+                    aVisibleLayers.Set(rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects), bVisible);
                     pPage->TRG_SetMasterPageVisibleLayers(aVisibleLayers);
                 }
             }
@@ -1183,7 +1183,7 @@ Any SAL_CALL SdGenericDrawPage::getPropertyValue( const OUString& PropertyName )
             {
                 SdrLayerAdmin& rLayerAdmin = rDoc.GetLayerAdmin();
                 SdrLayerIDSet aVisibleLayers = pPage->TRG_GetMasterPageVisibleLayers();
-                aAny <<= aVisibleLayers.IsSet(rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND)));
+                aAny <<= aVisibleLayers.IsSet(rLayerAdmin.GetLayerID(sUNO_LayerName_background));
             }
             else
             {
@@ -1202,7 +1202,7 @@ Any SAL_CALL SdGenericDrawPage::getPropertyValue( const OUString& PropertyName )
             {
                 SdrLayerAdmin& rLayerAdmin = rDoc.GetLayerAdmin();
                 SdrLayerIDSet aVisibleLayers = pPage->TRG_GetMasterPageVisibleLayers();
-                aAny <<= aVisibleLayers.IsSet(rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ)));
+                aAny <<= aVisibleLayers.IsSet(rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects));
             }
             else
             {
diff --git a/sd/source/ui/view/ViewShellImplementation.cxx b/sd/source/ui/view/ViewShellImplementation.cxx
index b93db139d119..df2fbaeaeda8 100644
--- a/sd/source/ui/view/ViewShellImplementation.cxx
+++ b/sd/source/ui/view/ViewShellImplementation.cxx
@@ -24,6 +24,7 @@
 #include <sdpage.hxx>
 #include <drawdoc.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <strings.hrc>
 #include <app.hrc>
 #include <sdattr.hxx>
@@ -194,8 +195,8 @@ void ViewShell::Implementation::ProcessModifyPageSlot (
 
                 pCurrentPage->SetAutoLayout(aNewAutoLayout, true);
 
-                SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-                SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+                SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+                SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
                 aVisibleLayers.Set(aBckgrnd, bBVisible);
                 aVisibleLayers.Set(aBckgrndObj, bBObjsVisible);
                 pCurrentPage->TRG_SetMasterPageVisibleLayers(aVisibleLayers);
@@ -255,8 +256,8 @@ void ViewShell::Implementation::AssignLayout ( SfxRequest const & rRequest, Page
         // Transform the given request into the four argument form that is
         // understood by ProcessModifyPageSlot().
         SdrLayerAdmin& rLayerAdmin (mrViewShell.GetViewShellBase().GetDocument()->GetLayerAdmin());
-        SdrLayerID aBackground (rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND)));
-        SdrLayerID aBackgroundObject (rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ)));
+        SdrLayerID aBackground (rLayerAdmin.GetLayerID(sUNO_LayerName_background));
+        SdrLayerID aBackgroundObject (rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects));
 
         SdrLayerIDSet aVisibleLayers;
 
diff --git a/sd/source/ui/view/drviews1.cxx b/sd/source/ui/view/drviews1.cxx
index 98a39465d8e5..d6272c24ff29 100644
--- a/sd/source/ui/view/drviews1.cxx
+++ b/sd/source/ui/view/drviews1.cxx
@@ -53,6 +53,7 @@
 #include <sdmod.hxx>
 #include <fupoor.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <fusel.hxx>
 #include <sdpage.hxx>
 #include <FrameView.hxx>
@@ -1141,24 +1142,19 @@ void DrawViewShell::ResetActualLayer()
     LayerTabBar* pLayerBar = GetLayerTabControl();
     if (pLayerBar != nullptr)
     {
-        // remember old layer count and current layer id
+        // remember old tab count and current tab id
         // this is needed when one layer is renamed to
-        // restore current layer
-        sal_uInt16 nOldLayerCnt = pLayerBar->GetPageCount();
-        sal_uInt16 nOldLayerPos = pLayerBar->GetCurPageId();
+        // restore current tab
+        sal_uInt16 nOldLayerCnt = pLayerBar->GetPageCount(); // actually it is tab count
+        sal_uInt16 nOldLayerPos = pLayerBar->GetCurPageId(); // actually it is a tab nId
 
         /**
          * Update for LayerTab
          */
         pLayerBar->Clear();
 
-        OUString aName;
+        OUString aName; // a real layer name
         OUString aActiveLayer = mpDrawView->GetActiveLayer();
-        OUString aBackgroundLayer = SdResId(STR_LAYER_BCKGRND);
-        OUString aBackgroundObjLayer = SdResId(STR_LAYER_BCKGRNDOBJ);
-        OUString aLayoutLayer = SdResId(STR_LAYER_LAYOUT);
-        OUString aControlsLayer = SdResId(STR_LAYER_CONTROLS);
-        OUString aMeasureLinesLayer = SdResId(STR_LAYER_MEASURELINES);
         sal_uInt16 nActiveLayerPos = SDRLAYERPOS_NOTFOUND;
         SdrLayerAdmin& rLayerAdmin = GetDoc()->GetLayerAdmin();
         sal_uInt16 nLayerCnt = rLayerAdmin.GetLayerCount();
@@ -1172,22 +1168,17 @@ void DrawViewShell::ResetActualLayer()
                 nActiveLayerPos = nLayerPos;
             }
 
-            if ( aName != aBackgroundLayer )
+            if ( aName != sUNO_LayerName_background ) // layer "background" has never a tab
             {
                 if (meEditMode == EditMode::MasterPage)
                 {
                     // don't show page layer onto the masterpage
-                    if (aName != aLayoutLayer   &&
-                        aName != aControlsLayer &&
-                        aName != aMeasureLinesLayer)
+                    if (aName != sUNO_LayerName_layout   &&
+                        aName != sUNO_LayerName_controls &&
+                        aName != sUNO_LayerName_measurelines)
                     {
-                        pLayerBar->InsertPage(nLayerPos+1, aName);
-
-                        // Set page bits for modified tab name display
-
                         TabBarPageBits nBits = TabBarPageBits::NONE;
                         SdrPageView* pPV = mpDrawView->GetSdrPageView();
-
                         if (pPV)
                         {
                             if (!pPV->IsLayerVisible(aName))
@@ -1204,22 +1195,15 @@ void DrawViewShell::ResetActualLayer()
                             }
                         }
 
-                        // Save the bits
-
-                        pLayerBar->SetPageBits(nLayerPos+1, nBits);
+                        pLayerBar->InsertPage(nLayerPos+1, aName, nBits); // why +1? It is a nId, not a position. Position is APPEND.
                     }
                 }
                 else
                 {
                     // don't show masterpage layer onto the page
-                    if (aName != aBackgroundObjLayer)
+                    if (aName != sUNO_LayerName_background_objects)
                     {
-                        pLayerBar->InsertPage(nLayerPos+1, aName);
-
-                        // Set page bits for modified tab name display
-
                         TabBarPageBits nBits = TabBarPageBits::NONE;
-
                         if (!mpDrawView->GetSdrPageView()->IsLayerVisible(aName))
                         {
                             nBits = TabBarPageBits::Blue;
@@ -1233,9 +1217,7 @@ void DrawViewShell::ResetActualLayer()
                             nBits |= TabBarPageBits::Underline;
                         }
 
-                        // Save the bits
-
-                        pLayerBar->SetPageBits(nLayerPos+1, nBits);
+                        pLayerBar->InsertPage(nLayerPos+1, aName, nBits);// why +1?
                     }
                 }
             }
@@ -1252,7 +1234,7 @@ void DrawViewShell::ResetActualLayer()
                 nActiveLayerPos = ( meEditMode == EditMode::MasterPage ) ? 2 : 0;
             }
 
-            mpDrawView->SetActiveLayer( pLayerBar->GetPageText(nActiveLayerPos + 1) );
+            mpDrawView->SetActiveLayer( pLayerBar->GetLayerName(nActiveLayerPos + 1) );// why +1?
         }
 
         pLayerBar->SetCurPageId(nActiveLayerPos + 1);
diff --git a/sd/source/ui/view/drviews2.cxx b/sd/source/ui/view/drviews2.cxx
index 7a8433da90f0..7ccdb99ea046 100644
--- a/sd/source/ui/view/drviews2.cxx
+++ b/sd/source/ui/view/drviews2.cxx
@@ -175,6 +175,7 @@
 #include <sdgrffilter.hxx>
 #include <sdpage.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <slideshow.hxx>
 #include <stlpool.hxx>
 #include <undolayer.hxx>
@@ -1810,7 +1811,8 @@ void DrawViewShell::FuTemporary(SfxRequest& rReq)
                     aLayerName   = static_cast<const SfxStringItem &>( aNewAttr.Get (ATTR_LAYER_NAME)).GetValue ();
 
                     if( rLayerAdmin.GetLayer( aLayerName )
-                        || aLayerName.isEmpty() )
+                        || aLayerName.isEmpty()
+                        || LayerTabBar::IsLocalizedNameOfStandardLayer( aLayerName) )
                     {
                         // name already exists
                         std::unique_ptr<weld::MessageDialog> xWarn(Application::CreateMessageDialog(GetFrameWeld(),
@@ -1918,7 +1920,7 @@ void DrawViewShell::FuTemporary(SfxRequest& rReq)
 
             SdrLayerAdmin& rLayerAdmin = GetDoc()->GetLayerAdmin();
             sal_uInt16 nCurPage = GetLayerTabControl()->GetCurPageId();
-            OUString aLayerName = GetLayerTabControl()->GetPageText(nCurPage);
+            OUString aLayerName = GetLayerTabControl()->GetLayerName(nCurPage);
             SdrLayer* pLayer = rLayerAdmin.GetLayer(aLayerName);
 
             OUString aLayerTitle = pLayer->GetTitle();
@@ -1935,20 +1937,7 @@ void DrawViewShell::FuTemporary(SfxRequest& rReq)
 
             const SfxItemSet* pArgs = rReq.GetArgs();
             // is it allowed to delete the layer?
-            bool bDelete = true;
-
-            OUString aLayoutLayer = SdResId(STR_LAYER_LAYOUT);
-            OUString aControlsLayer = SdResId(STR_LAYER_CONTROLS);
-            OUString aMeasureLinesLayer = SdResId(STR_LAYER_MEASURELINES);
-            OUString aBackgroundLayer = SdResId(STR_LAYER_BCKGRND);
-            OUString aBackgroundObjLayer = SdResId(STR_LAYER_BCKGRNDOBJ);
-
-            if( aLayerName == aLayoutLayer       || aLayerName == aControlsLayer ||
-                aLayerName == aMeasureLinesLayer ||
-                aLayerName == aBackgroundLayer   || aLayerName == aBackgroundObjLayer )
-            {
-                bDelete = false;
-            }
+            bool bDelete = !( LayerTabBar::IsRealNameOfStandardLayer(aLayerName) );
 
             if (! pArgs)
             {
@@ -1974,18 +1963,24 @@ void DrawViewShell::FuTemporary(SfxRequest& rReq)
                 {
                     pDlg->GetAttr( aNewAttr );
                     aLayerName   = static_cast<const SfxStringItem &>( aNewAttr.Get (ATTR_LAYER_NAME)).GetValue ();
-
-                    if( (rLayerAdmin.GetLayer( aLayerName ) &&
-                         aLayerName != aOldLayerName) || aLayerName.isEmpty() )
+                    if (bDelete)
                     {
-                        // name already exists
-                        std::unique_ptr<weld::MessageDialog> xWarn(Application::CreateMessageDialog(GetFrameWeld(),
+                        if( (rLayerAdmin.GetLayer( aLayerName ) && aLayerName != aOldLayerName)
+                            || LayerTabBar::IsRealNameOfStandardLayer(aLayerName)
+                            || LayerTabBar::IsLocalizedNameOfStandardLayer(aLayerName)
+                            || aLayerName.isEmpty() )
+                        {
+                            // name already exists
+                            std::unique_ptr<weld::MessageDialog> xWarn(Application::CreateMessageDialog(GetFrameWeld(),
                                                                    VclMessageType::Warning, VclButtonsType::Ok,
                                                                    SdResId(STR_WARN_NAME_DUPLICATE)));
-                        xWarn->run();
+                             xWarn->run();
+                        }
+                        else
+                            bLoop = false;
                     }
                     else
-                        bLoop = false;
+                        bLoop = false; // altering name is already disabled in the dialog itself
                 }
                 switch (nRet)
                 {
@@ -3279,6 +3274,9 @@ void DrawViewShell::FuTemporary(SfxRequest& rReq)
         {
             // Determine current page and toggle visibility of layers
             // associated with master page background or master page shapes.
+            // FIXME: This solution is wrong, because shapes of master pages need
+            // not be on layer "background" or "backgroundobjects".
+            // See tdf#118613
             SdPage* pPage = GetActualPage();
             if (pPage != nullptr
                 && GetDoc() != nullptr)
@@ -3287,9 +3285,9 @@ void DrawViewShell::FuTemporary(SfxRequest& rReq)
                 SdrLayerAdmin& rLayerAdmin = GetDoc()->GetLayerAdmin();
                 SdrLayerID aLayerId;
                 if (nSId == SID_DISPLAY_MASTER_BACKGROUND)
-                    aLayerId = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
+                    aLayerId = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
                 else
-                    aLayerId = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+                    aLayerId = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
                 aVisibleLayers.Set(aLayerId, !aVisibleLayers.IsSet(aLayerId));
                 pPage->TRG_SetMasterPageVisibleLayers(aVisibleLayers);
             }
diff --git a/sd/source/ui/view/drviews3.cxx b/sd/source/ui/view/drviews3.cxx
index aa433c0d84c7..de0d97335ec0 100644
--- a/sd/source/ui/view/drviews3.cxx
+++ b/sd/source/ui/view/drviews3.cxx
@@ -65,6 +65,7 @@
 #include <sdpage.hxx>
 #include <Window.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <drawview.hxx>
 #include <drawdoc.hxx>
 #include <Ruler.hxx>
@@ -224,7 +225,11 @@ void  DrawViewShell::ExecCtrl(SfxRequest& rReq)
 
             if(bCurPageValid)
             {
-                mpDrawView->SetActiveLayer( GetLayerTabControl()->GetPageText(nCurPage) );
+                OUString aLayerName( GetLayerTabControl()->GetLayerName(nCurPage));
+                if (!aLayerName.isEmpty())
+                {
+                    mpDrawView->SetActiveLayer(aLayerName);
+                }
                 Invalidate();
             }
 
@@ -252,7 +257,7 @@ void  DrawViewShell::ExecCtrl(SfxRequest& rReq)
             }
 
             // turn on default layer of page
-            mpDrawView->SetActiveLayer(SdResId(STR_LAYER_LAYOUT));
+            mpDrawView->SetActiveLayer(sUNO_LayerName_layout);
 
             ChangeEditMode(EditMode::Page, mbIsLayerModeActive);
 
diff --git a/sd/source/ui/view/drviews4.cxx b/sd/source/ui/view/drviews4.cxx
index 32f9fcf96c0f..97d832c1f5ad 100644
--- a/sd/source/ui/view/drviews4.cxx
+++ b/sd/source/ui/view/drviews4.cxx
@@ -99,11 +99,18 @@ void DrawViewShell::DeleteActualLayer()
     }
 
     SdrLayerAdmin& rAdmin = GetDoc()->GetLayerAdmin();
-    const OUString& rName = GetLayerTabControl()->GetPageText(GetLayerTabControl()->GetCurPageId());
+    sal_uInt16 nId = GetLayerTabControl()->GetCurPageId();
+    const OUString& rName = GetLayerTabControl()->GetLayerName(nId);
+    if(LayerTabBar::IsRealNameOfStandardLayer(rName))
+    {
+        assert(false && "Standard layer may not be deleted.");
+        return;
+    }
+    const OUString& rDisplayName(GetLayerTabControl()->GetPageText(nId));
     OUString aString(SdResId(STR_ASK_DELETE_LAYER));
 
     // replace placeholder
-    aString = aString.replaceFirst("$", rName);
+    aString = aString.replaceFirst("$", rDisplayName);
 
     std::unique_ptr<weld::MessageDialog> xQueryBox(Application::CreateMessageDialog(GetFrameWeld(),
                                                    VclMessageType::Question, VclButtonsType::YesNo,
diff --git a/sd/source/ui/view/drviews5.cxx b/sd/source/ui/view/drviews5.cxx
index bd9e9f849bb1..2266c7981d06 100644
--- a/sd/source/ui/view/drviews5.cxx
+++ b/sd/source/ui/view/drviews5.cxx
@@ -600,7 +600,7 @@ void DrawViewShell::SetActiveTabLayerIndex (int nIndex)
         if (nIndex>=0 && nIndex<pBar->GetPageCount())
         {
             // Tell the draw view and the tab control of the new active layer.
-            mpDrawView->SetActiveLayer (pBar->GetPageText (pBar->GetPageId (static_cast<sal_uInt16>(nIndex))));
+            mpDrawView->SetActiveLayer (pBar->GetLayerName (pBar->GetPageId (static_cast<sal_uInt16>(nIndex))));
             pBar->SetCurPageId (pBar->GetPageId (static_cast<sal_uInt16>(nIndex)));
             rtl::Reference<SdUnoDrawView> pUnoDrawView(new SdUnoDrawView (
                 *this,
diff --git a/sd/source/ui/view/drviews7.cxx b/sd/source/ui/view/drviews7.cxx
index 22bc8d5955a8..129f7904a949 100644
--- a/sd/source/ui/view/drviews7.cxx
+++ b/sd/source/ui/view/drviews7.cxx
@@ -81,7 +81,7 @@
 #include <drawdoc.hxx>
 #include <DrawViewShell.hxx>
 #include <sdmod.hxx>
-#include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <sdpage.hxx>
 #include <Client.hxx>
 #include <DrawDocShell.hxx>
@@ -863,16 +863,9 @@ void DrawViewShell::GetMenuState( SfxItemSet &rSet )
         if(GetLayerTabControl()) // #i87182#
         {
             sal_uInt16 nCurrentLayer = GetLayerTabControl()->GetCurPageId();
-            const OUString& rName = GetLayerTabControl()->GetPageText(nCurrentLayer);
+            const OUString& rName = GetLayerTabControl()->GetLayerName(nCurrentLayer);
 
-            bool bDisableIt = !IsLayerModeActive();
-            bDisableIt |= (rName == SdResId(STR_LAYER_LAYOUT));
-            bDisableIt |= (rName == SdResId(STR_LAYER_BCKGRND));
-            bDisableIt |= (rName == SdResId(STR_LAYER_BCKGRNDOBJ));
-            bDisableIt |= (rName == SdResId(STR_LAYER_CONTROLS));
-            bDisableIt |= (rName == SdResId(STR_LAYER_MEASURELINES));
-
-            if (bDisableIt)
+            if (!IsLayerModeActive() || LayerTabBar::IsRealNameOfStandardLayer(rName))
             {
                 rSet.DisableItem(SID_DELETE_LAYER);
                 rSet.DisableItem(SID_RENAMELAYER);
@@ -1570,8 +1563,8 @@ void DrawViewShell::GetMenuState( SfxItemSet &rSet )
         {
             SdrLayerIDSet aVisibleLayers = pPage->TRG_GetMasterPageVisibleLayers();
             SdrLayerAdmin& rLayerAdmin = GetDoc()->GetLayerAdmin();
-            SdrLayerID aBackgroundId = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-            SdrLayerID aObjectId = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+            SdrLayerID aBackgroundId = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+            SdrLayerID aObjectId = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
             rSet.Put(SfxBoolItem(SID_DISPLAY_MASTER_BACKGROUND,
                     aVisibleLayers.IsSet(aBackgroundId)));
             rSet.Put(SfxBoolItem(SID_DISPLAY_MASTER_OBJECTS,
diff --git a/sd/source/ui/view/drviewsa.cxx b/sd/source/ui/view/drviewsa.cxx
index 31ada8f087e0..6fc9e12def03 100644
--- a/sd/source/ui/view/drviewsa.cxx
+++ b/sd/source/ui/view/drviewsa.cxx
@@ -70,6 +70,7 @@
 #include <annotationmanager.hxx>
 #include <DrawController.hxx>
 #include <tools/diagnose_ex.h>
+#include <LayerTabBar.hxx>
 
 #include <memory>
 
@@ -701,7 +702,7 @@ void DrawViewShell::GetStatusBarState(SfxItemSet& rSet)
                 if( pLayer )
                 {
                     aOUString += " (" ;
-                    aOUString += pLayer->GetName();
+                    aOUString += LayerTabBar::convertToLocalizedName(pLayer->GetName());
                     aOUString += ")";
                 }
             }
diff --git a/sd/source/ui/view/drviewsb.cxx b/sd/source/ui/view/drviewsb.cxx
index 9fd8f21f5cd7..540cc6e006fb 100644
--- a/sd/source/ui/view/drviewsb.cxx
+++ b/sd/source/ui/view/drviewsb.cxx
@@ -46,7 +46,7 @@
 #include <sdattr.hxx>
 #include <drawdoc.hxx>
 #include <DrawDocShell.hxx>
-#include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <sdpage.hxx>
 #include <DrawViewShell.hxx>
 #include <drawview.hxx>
@@ -78,8 +78,8 @@ bool DrawViewShell::RenameSlide( sal_uInt16 nPageId, const OUString & rName  )
         // Undo
         SdPage* pUndoPage = pPageToRename;
         SdrLayerAdmin &  rLayerAdmin = GetDoc()->GetLayerAdmin();
-        SdrLayerID nBackground = rLayerAdmin.GetLayerID( SdResId(STR_LAYER_BCKGRND) );
-        SdrLayerID nBgObj = rLayerAdmin.GetLayerID( SdResId(STR_LAYER_BCKGRNDOBJ) );
+        SdrLayerID nBackground = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+        SdrLayerID nBgObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
         SdrLayerIDSet aVisibleLayers = mpActualPage->TRG_GetMasterPageVisibleLayers();
 
         SfxUndoManager* pManager = GetDoc()->GetDocSh()->GetUndoManager();
@@ -168,7 +168,7 @@ void DrawViewShell::ModifyLayer (
         for( nPos = 0; nPos < nPageCount; nPos++ )
         {
             sal_uInt16 nId = GetLayerTabControl()->GetPageId( nPos );
-            if (GetLayerTabControl()->GetPageText(nId) == pLayer->GetName())
+            if (GetLayerTabControl()->GetLayerName(nId) == pLayer->GetName())
             {
                 nCurPage = nId;
                 break;
diff --git a/sd/source/ui/view/drviewse.cxx b/sd/source/ui/view/drviewse.cxx
index fbd489a74c98..61e8572cbaa5 100644
--- a/sd/source/ui/view/drviewse.cxx
+++ b/sd/source/ui/view/drviewse.cxx
@@ -80,6 +80,7 @@
 #include <fuconarc.hxx>
 #include <fucon3d.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <Outliner.hxx>
 #include <PresentationViewShell.hxx>
 #include <sdpage.hxx>
@@ -1019,7 +1020,7 @@ void DrawViewShell::FuSupport(SfxRequest& rReq)
                 ViewShellHint(ViewShellHint::HINT_CHANGE_EDIT_MODE_START));
 
             // turn on default layer of MasterPage
-            mpDrawView->SetActiveLayer( SdResId(STR_LAYER_BCKGRNDOBJ) );
+            mpDrawView->SetActiveLayer(sUNO_LayerName_background_objects);
 
             ChangeEditMode(EditMode::MasterPage, mbIsLayerModeActive);
 
diff --git a/sd/source/ui/view/frmview.cxx b/sd/source/ui/view/frmview.cxx
index aa4f7af1a51e..d6a8cabb1aec 100644
--- a/sd/source/ui/view/frmview.cxx
+++ b/sd/source/ui/view/frmview.cxx
@@ -35,7 +35,7 @@
 #include <DrawViewShell.hxx>
 #include <OutlineViewShell.hxx>
 #include <sdmod.hxx>
-#include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <pres.hxx>
 #include <strings.hrc>
 #include <sdiocmpt.hxx>
@@ -207,7 +207,7 @@ FrameView::FrameView(SdDrawDocument* pDrawDoc, FrameView* pFrameView /* = NULL *
         rLayerAdmin.getLockedLayersODF(maLockedLayers);
         SetGridCoarse( Size( 1000, 1000 ) );
         SetSnapGridWidth(Fraction(1000, 1), Fraction(1000, 1));
-        SetActiveLayer( SdResId(STR_LAYER_LAYOUT) );
+        SetActiveLayer(sUNO_LayerName_layout);
         mbNoColors = true;
         mbNoAttribs = false;
         maVisArea = ::tools::Rectangle( Point(), Size(0, 0) );
diff --git a/sd/source/ui/view/sdview.cxx b/sd/source/ui/view/sdview.cxx
index 30ea493b2732..c0659cc7bf07 100644
--- a/sd/source/ui/view/sdview.cxx
+++ b/sd/source/ui/view/sdview.cxx
@@ -64,6 +64,7 @@
 #include <sdmod.hxx>
 #include <sdpage.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <DrawViewShell.hxx>
 #include <futext.hxx>
 #include <fuinsfil.hxx>
@@ -136,7 +137,7 @@ View::View(
 
     SetMinMoveDistancePixel(2);
     SetHitTolerancePixel(2);
-    SetMeasureLayer(SdResId(STR_LAYER_MEASURELINES));
+    SetMeasureLayer(sUNO_LayerName_measurelines);
 
     // Timer for delayed drop (has to be for MAC)
     maDropErrorIdle.SetInvokeHandler( LINK(this, View, DropErrorHdl) );
diff --git a/sd/source/ui/view/unmodpg.cxx b/sd/source/ui/view/unmodpg.cxx
index f5d3268ac361..b82e3413f717 100644
--- a/sd/source/ui/view/unmodpg.cxx
+++ b/sd/source/ui/view/unmodpg.cxx
@@ -31,6 +31,7 @@
 #include <unmodpg.hxx>
 #include <sdpage.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <drawdoc.hxx>
 
 
@@ -57,8 +58,8 @@ ModifyPageUndoAction::ModifyPageUndoAction(
     {
         maOldName = mpPage->GetName();
         SdrLayerAdmin& rLayerAdmin = mpDoc->GetLayerAdmin();
-        SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-        SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+        SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+        SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
         SdrLayerIDSet aVisibleLayers = mpPage->TRG_GetMasterPageVisibleLayers();
 
         mbOldBckgrndVisible = aVisibleLayers.IsSet(aBckgrnd);
@@ -103,8 +104,8 @@ void ModifyPageUndoAction::Undo()
         }
 
         SdrLayerAdmin& rLayerAdmin = mpDoc->GetLayerAdmin();
-        SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-        SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+        SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+        SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
         SdrLayerIDSet aVisibleLayers;
         aVisibleLayers.Set(aBckgrnd, mbOldBckgrndVisible);
         aVisibleLayers.Set(aBckgrndObj, mbOldBckgrndObjsVisible);
@@ -146,8 +147,8 @@ void ModifyPageUndoAction::Redo()
         }
 
         SdrLayerAdmin& rLayerAdmin = mpDoc->GetLayerAdmin();
-        SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-        SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+        SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+        SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
         SdrLayerIDSet aVisibleLayers;
         aVisibleLayers.Set(aBckgrnd, mbNewBckgrndVisible);
         aVisibleLayers.Set(aBckgrndObj, mbNewBckgrndObjsVisible);
diff --git a/sd/source/ui/view/viewshe3.cxx b/sd/source/ui/view/viewshe3.cxx
index 9da2781e63b4..53b3d3ce4052 100644
--- a/sd/source/ui/view/viewshe3.cxx
+++ b/sd/source/ui/view/viewshe3.cxx
@@ -69,6 +69,7 @@
 #include <framework/FrameworkHelper.hxx>
 #include <optsitem.hxx>
 #include <sdresid.hxx>
+#include <unokywds.hxx>
 #include <undo/undomanager.hxx>
 
 #include <svx/svxids.hrc>
@@ -194,8 +195,8 @@ SdPage* ViewShell::CreateOrDuplicatePage (
     sal_uInt16 nSId = rRequest.GetSlot();
     SdDrawDocument* pDocument = GetDoc();
     SdrLayerAdmin& rLayerAdmin = pDocument->GetLayerAdmin();
-    SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRND));
-    SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(SdResId(STR_LAYER_BCKGRNDOBJ));
+    SdrLayerID aBckgrnd = rLayerAdmin.GetLayerID(sUNO_LayerName_background);
+    SdrLayerID aBckgrndObj = rLayerAdmin.GetLayerID(sUNO_LayerName_background_objects);
     SdrLayerIDSet aVisibleLayers;
     // Determine the page from which to copy some values, such as layers,
     // size, master page, to the new page.  This is usually the given page.
diff --git a/svtools/source/control/tabbar.cxx b/svtools/source/control/tabbar.cxx
index ccad39c6253a..0d617312658d 100644
--- a/svtools/source/control/tabbar.cxx
+++ b/svtools/source/control/tabbar.cxx
@@ -202,6 +202,7 @@ struct ImplTabBarItem
     TabBarPageBits mnBits;
     OUString maText;
     OUString maHelpText;
+    OUString maAuxiliaryText; // used in LayerTabBar for real layer name
     tools::Rectangle maRect;
     long mnWidth;
     OString maHelpId;
@@ -2234,6 +2235,24 @@ OUString TabBar::GetPageText(sal_uInt16 nPageId) const
     return OUString();
 }
 
+OUString TabBar::GetAuxiliaryText(sal_uInt16 nPageId) const
+{
+    sal_uInt16 nPos = GetPagePos(nPageId);
+    if (nPos != PAGE_NOT_FOUND)
+        return mpImpl->mpItemList[nPos]->maAuxiliaryText;
+    return OUString();
+}
+
+void TabBar::SetAuxiliaryText(sal_uInt16 nPageId, const OUString& rText )
+{
+    sal_uInt16 nPos = GetPagePos(nPageId);
+    if (nPos != PAGE_NOT_FOUND)
+    {
+        mpImpl->mpItemList[nPos]->maAuxiliaryText = rText;
+        // no redraw bar, no CallEventListener, internal use in LayerTabBar
+    }
+}
+
 OUString TabBar::GetHelpText(sal_uInt16 nPageId) const
 {
     sal_uInt16 nPos = GetPagePos(nPageId);
diff --git a/svx/source/svdraw/svdlayer.cxx b/svx/source/svdraw/svdlayer.cxx
index b40f3fa0dc90..1d87fb830f42 100644
--- a/svx/source/svdraw/svdlayer.cxx
+++ b/svx/source/svdraw/svdlayer.cxx
@@ -114,7 +114,7 @@ SdrLayerAdmin::SdrLayerAdmin(SdrLayerAdmin* pNewParent):
     aLayer(),
     pParent(pNewParent),
     pModel(nullptr),
-    maControlLayerName("Controls")
+    maControlLayerName("controls")
 {
 }
 
@@ -122,7 +122,7 @@ SdrLayerAdmin::SdrLayerAdmin(const SdrLayerAdmin& rSrcLayerAdmin):
     aLayer(),
     pParent(nullptr),
     pModel(nullptr),
-    maControlLayerName("Controls")
+    maControlLayerName("controls")
 {
     *this = rSrcLayerAdmin;
 }