Turn ScStyleSheet::Usage into scoped enum

...to avoid -Werror,-Wshadow from Clang trunk with
<https://reviews.llvm.org/D52400> "Improve -Wshadow warnings with enumerators",
warning about shadowing of USAGE in e.g. enum ESCHER_BlibType in
include/filter/msfilter/escherex.hxx

Change-Id: If492c5086402e46158d3de5d4d6b00b61412c655
Reviewed-on: https://gerrit.libreoffice.org/61985
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

4 files changed, 11 insertions, 11 deletions

diff --git a/sc/inc/stlsheet.hxx b/sc/inc/stlsheet.hxx
index b1b4ad68e7c7..bd5aa843d8b4 100644
--- a/sc/inc/stlsheet.hxx
+++ b/sc/inc/stlsheet.hxx
@@ -32,7 +32,7 @@ friend class ScStyleSheetPool;
 
 public:
 
-    enum    Usage
+    enum class Usage
     {
         UNKNOWN,
         USED,
diff --git a/sc/source/core/data/attarray.cxx b/sc/source/core/data/attarray.cxx
index 5c3d5a7153ab..e5c3f3534e55 100644
--- a/sc/source/core/data/attarray.cxx
+++ b/sc/source/core/data/attarray.cxx
@@ -1850,7 +1850,7 @@ bool ScAttrArray::IsStyleSheetUsed( const ScStyleSheet& rStyle ) const
         const ScStyleSheet* pStyle = pDocument->GetDefPattern()->GetStyleSheet();
         if ( pStyle )
         {
-            pStyle->SetUsage( ScStyleSheet::USED );
+            pStyle->SetUsage( ScStyleSheet::Usage::USED );
             if ( pStyle == &rStyle )
                 return true;
         }
@@ -1865,7 +1865,7 @@ bool ScAttrArray::IsStyleSheetUsed( const ScStyleSheet& rStyle ) const
         const ScStyleSheet* pStyle = mvData[nPos].pPattern->GetStyleSheet();
         if ( pStyle )
         {
-            pStyle->SetUsage( ScStyleSheet::USED );
+            pStyle->SetUsage( ScStyleSheet::Usage::USED );
             if ( pStyle == &rStyle )
             {
                 bIsUsed = true;
diff --git a/sc/source/core/data/document.cxx b/sc/source/core/data/document.cxx
index 490cb93e59a4..4a9b7fb93c3e 100644
--- a/sc/source/core/data/document.cxx
+++ b/sc/source/core/data/document.cxx
@@ -4967,7 +4967,7 @@ void ScDocument::StyleSheetChanged( const SfxStyleSheetBase* pStyleSheet, bool b
 
 bool ScDocument::IsStyleSheetUsed( const ScStyleSheet& rStyle ) const
 {
-    if ( bStyleSheetUsageInvalid || rStyle.GetUsage() == ScStyleSheet::UNKNOWN )
+    if ( bStyleSheetUsageInvalid || rStyle.GetUsage() == ScStyleSheet::Usage::UNKNOWN )
     {
         SfxStyleSheetIterator aIter( mxPoolHelper->GetStylePool(),
                     SfxStyleFamily::Para );
@@ -4977,7 +4977,7 @@ bool ScDocument::IsStyleSheetUsed( const ScStyleSheet& rStyle ) const
             if (pStyle->isScStyleSheet())
             {
                 const ScStyleSheet* pScStyle = static_cast<const ScStyleSheet*>( pStyle  );
-                pScStyle->SetUsage( ScStyleSheet::NOTUSED );
+                pScStyle->SetUsage( ScStyleSheet::Usage::NOTUSED );
             }
         }
 
@@ -4999,7 +4999,7 @@ bool ScDocument::IsStyleSheetUsed( const ScStyleSheet& rStyle ) const
         return bIsUsed;
     }
 
-    return rStyle.GetUsage() == ScStyleSheet::USED;
+    return rStyle.GetUsage() == ScStyleSheet::Usage::USED;
 }
 
 bool ScDocument::ApplyFlagsTab( SCCOL nStartCol, SCROW nStartRow,
diff --git a/sc/source/core/data/stlsheet.cxx b/sc/source/core/data/stlsheet.cxx
index 21c24e4ec913..3597205aa829 100644
--- a/sc/source/core/data/stlsheet.cxx
+++ b/sc/source/core/data/stlsheet.cxx
@@ -54,13 +54,13 @@ ScStyleSheet::ScStyleSheet( const OUString&     rName,
                             SfxStyleSearchBits  nMaskP )
 
     : SfxStyleSheet   ( rName, rPoolP, eFamily, nMaskP )
-    , eUsage( UNKNOWN )
+    , eUsage( Usage::UNKNOWN )
 {
 }
 
 ScStyleSheet::ScStyleSheet( const ScStyleSheet& rStyle )
     : SfxStyleSheet ( rStyle )
-    , eUsage( UNKNOWN )
+    , eUsage( Usage::UNKNOWN )
 {
 }
 
@@ -261,10 +261,10 @@ bool ScStyleSheet::IsUsed() const
         // and store the state.
         ScDocument* pDoc = static_cast<ScStyleSheetPool*>(m_pPool)->GetDocument();
         if ( pDoc && pDoc->IsStyleSheetUsed( *this ) )
-            eUsage = USED;
+            eUsage = Usage::USED;
         else
-            eUsage = NOTUSED;
-        return eUsage == USED;
+            eUsage = Usage::NOTUSED;
+        return eUsage == Usage::USED;
     }
     else
         return true;