Clarify DdeData::GetExternalFormat return type

The implementation (in svl/source/svdde/ddedata.cxx) returns any of:
* {CF_TEXT=1, CF_BITMAP=2, CF_METFILEPICT=3} from the Windows API;
* the return value of Windows API's RegisterClipboardFormatW, which is UINT from
  the Windows API (i.e., 32-bit unsigned int);
* a enum SotClipboardFormatId value, whose underlying type is sal_uInt32.

So the natural choice is sal_uInt32 here.  (Windows API's UINT would also do,
but cannot be used in include/svl/svdde.hxx, which is used on all platforms.)

That in turn shows that DdeService's aFormats and HasCbFormat should also use
sal_uInt32.  (And then, simplify some of the std algorithms use in
svl/source/svdde/ddesvr.cxx.)

Change-Id: I593d0a7df78bfdd08ce2de04c3da2078d973e262
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/106151
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

2 files changed, 12 insertions, 15 deletions

diff --git a/svl/source/svdde/ddedata.cxx b/svl/source/svdde/ddedata.cxx
index 7cf9c0b1daa6..d8e1e1579226 100644
--- a/svl/source/svdde/ddedata.cxx
+++ b/svl/source/svdde/ddedata.cxx
@@ -121,7 +121,7 @@ DdeData& DdeData::operator=(DdeData&& rData) noexcept
     return *this;
 }
 
-sal_uLong DdeData::GetExternalFormat(SotClipboardFormatId nFmt)
+sal_uInt32 DdeData::GetExternalFormat(SotClipboardFormatId nFmt)
 {
     switch( nFmt )
     {
@@ -138,7 +138,7 @@ sal_uLong DdeData::GetExternalFormat(SotClipboardFormatId nFmt)
                 return RegisterClipboardFormatW( o3tl::toW(aName.getStr()) );
         }
     }
-    return static_cast<sal_uLong>(nFmt);
+    return static_cast<sal_uInt32>(nFmt);
 }
 
 SotClipboardFormatId DdeData::GetInternalFormat(sal_uLong nFmt)
diff --git a/svl/source/svdde/ddesvr.cxx b/svl/source/svdde/ddesvr.cxx
index 330e69f2b167..fe0e5c59f41b 100644
--- a/svl/source/svdde/ddesvr.cxx
+++ b/svl/source/svdde/ddesvr.cxx
@@ -491,31 +491,28 @@ void DdeService::RemoveTopic( const DdeTopic& rTopic )
     }
 }
 
-bool DdeService::HasCbFormat( sal_uInt16 nFmt )
+bool DdeService::HasCbFormat( sal_uInt32 nFmt )
 {
-    return std::any_of(aFormats.begin(), aFormats.end(),
-        [nFmt](const long nFormat) { return nFormat == nFmt; });
+    return std::find(aFormats.begin(), aFormats.end(), nFmt) != aFormats.end();
 }
 
 bool DdeService::HasFormat(SotClipboardFormatId nFmt)
 {
-    return HasCbFormat( static_cast<sal_uInt16>(DdeData::GetExternalFormat( nFmt )));
+    return HasCbFormat( DdeData::GetExternalFormat( nFmt ));
 }
 
 void DdeService::AddFormat(SotClipboardFormatId nFmt)
 {
-    sal_uLong nExternalFmt = DdeData::GetExternalFormat( nFmt );
-    if (std::any_of(aFormats.begin(), aFormats.end(),
-            [nExternalFmt](const long nFormat) { return static_cast<sal_uLong>(nFormat) == nExternalFmt; }))
+    sal_uInt32 nExternalFmt = DdeData::GetExternalFormat( nFmt );
+    if (HasCbFormat(nExternalFmt))
         return;
     aFormats.push_back( nExternalFmt );
 }
 
 void DdeService::RemoveFormat(SotClipboardFormatId nFmt)
 {
-    sal_uLong nExternalFmt = DdeData::GetExternalFormat( nFmt );
-    auto it = std::find_if(aFormats.begin(), aFormats.end(),
-        [nExternalFmt](const long nFormat) { return static_cast<sal_uLong>(nFormat) == nExternalFmt; });
+    sal_uInt32 nExternalFmt = DdeData::GetExternalFormat( nFmt );
+    auto it = std::find(aFormats.begin(), aFormats.end(), nExternalFmt);
     if (it != aFormats.end())
         aFormats.erase( it );
 }
@@ -822,11 +819,11 @@ OUString DdeService::Formats()
 
     for (size_t i = 0; i < aFormats.size(); ++i, ++n)
     {
-        long f = aFormats[ i ];
+        sal_uInt32 f = aFormats[ i ];
         if ( n )
             s += "\t";
 
-        switch( static_cast<sal_uInt16>(f) )
+        switch( f )
         {
         case CF_TEXT:
             s += "TEXT";
@@ -837,7 +834,7 @@ OUString DdeService::Formats()
         default:
             {
                 WCHAR buf[128];
-                GetClipboardFormatNameW( static_cast<UINT>(f), buf, SAL_N_ELEMENTS(buf) );
+                GetClipboardFormatNameW( f, buf, SAL_N_ELEMENTS(buf) );
                 s += o3tl::toU(buf);
             }
             break;