Last .empty() string source cleaning before 2.5.4.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31705 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/datetime.cpp

@@ -803,7 +803,7 @@ wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(wxDateTime::Month month,
 wxString wxDateTime::GetMonthName(wxDateTime::Month month,
                                   wxDateTime::NameFlags flags)
 {
-    wxCHECK_MSG( month != Inv_Month, _T(""), _T("invalid month") );
+    wxCHECK_MSG( month != Inv_Month, wxEmptyString, _T("invalid month") );
 
     // notice that we must set all the fields to avoid confusing libc (GNU one
     // gets confused to a crash if we don't do this)
@@ -818,7 +818,7 @@ wxString wxDateTime::GetMonthName(wxDateTime::Month month,
 wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday,
                                     wxDateTime::NameFlags flags)
 {
-    wxCHECK_MSG( wday != Inv_WeekDay, _T(""), _T("invalid weekday") );
+    wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, _T("invalid weekday") );
 
     // take some arbitrary Sunday (but notice that the day should be such that
     // after adding wday to it below we still have a valid date, e.g. don't
@@ -2068,7 +2068,7 @@ wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST)
 
 wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
 {
-    wxCHECK_MSG( format, _T(""), _T("NULL format in wxDateTime::Format") );
+    wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxDateTime::Format") );
 
     // we have to use our own implementation if the date is out of range of
     // strftime() or if we use non standard specificators
@@ -3849,7 +3849,7 @@ enum TimeSpanPart
 //  %l          milliseconds (000 - 999)
 wxString wxTimeSpan::Format(const wxChar *format) const
 {
-    wxCHECK_MSG( format, _T(""), _T("NULL format in wxTimeSpan::Format") );
+    wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxTimeSpan::Format") );
 
     wxString str;
     str.Alloc(wxStrlen(format));

src/common/hash.cpp

@@ -288,7 +288,7 @@ void wxStringHashTable::Put(long key, const wxString& value)
 
 wxString wxStringHashTable::Get(long key, bool *wasFound) const
 {
-    wxCHECK_MSG( m_hashSize, _T(""), _T("must call Create() first") );
+    wxCHECK_MSG( m_hashSize, wxEmptyString, _T("must call Create() first") );
 
     size_t slot = (size_t)abs((int)(key % (long)m_hashSize));
 
@@ -311,7 +311,7 @@ wxString wxStringHashTable::Get(long key, bool *wasFound) const
     if ( wasFound )
         *wasFound = false;
 
-    return _T("");
+    return wxEmptyString;
 }
 
 bool wxStringHashTable::Delete(long key) const

src/common/intl.cpp

@@ -1226,7 +1226,7 @@ void wxMsgCatalogFile::FillHash(wxMessagesHash& hash,
 {
 #if wxUSE_WCHAR_T
     wxCSConv *csConv = NULL;
-    if ( !m_charset.IsEmpty() )
+    if ( !m_charset.empty() )
         csConv = new wxCSConv(m_charset);
 
     wxMBConv& inputConv = csConv ? *((wxMBConv*)csConv) : *wxConvCurrent;
@@ -1462,7 +1462,7 @@ bool wxLocale::Init(const wxChar *szName,
 
   // the short name will be used to look for catalog files as well,
   // so we need something here
-  if ( m_strShort.IsEmpty() ) {
+  if ( m_strShort.empty() ) {
     // FIXME I don't know how these 2 letter abbreviations are formed,
     //       this wild guess is surely wrong
     if ( szLocale && szLocale[0] )
@@ -1637,7 +1637,7 @@ bool wxLocale::Init(int language, int flags)
                 if (codepage != 0)
                     locale << wxT(".") << buffer;
             }
-            if (locale.IsEmpty())
+            if (locale.empty())
             {
                 wxLogLastError(wxT("SetThreadLocale"));
                 wxLogError(wxT("Cannot set locale to language %s."), name.c_str());
@@ -2545,14 +2545,14 @@ wxString wxLocale::GetHeaderValue( const wxChar* szHeader,
         if ( pMsgCat == NULL )
             return wxEmptyString;
 
-        pszTrans = pMsgCat->GetString(wxT(""), (size_t)-1);
+        pszTrans = pMsgCat->GetString(wxEmptyString, (size_t)-1);
     }
     else
     {
         // search in all domains
         for ( pMsgCat = m_pMsgCat; pMsgCat != NULL; pMsgCat = pMsgCat->m_pNext )
         {
-            pszTrans = pMsgCat->GetString(wxT(""), (size_t)-1);
+            pszTrans = pMsgCat->GetString(wxEmptyString, (size_t)-1);
             if ( pszTrans != NULL )   // take the first found
                 break;
         }

src/common/menucmn.cpp

@@ -141,7 +141,7 @@ wxAcceleratorEntry *wxGetAccelFromString(const wxString& label)
             }
         }
 
-        if ( current.IsEmpty() ) {
+        if ( current.empty() ) {
             wxLogDebug(wxT("No accel key found, accel string ignored."));
         }
         else {
@@ -706,7 +706,7 @@ wxString wxMenuBase::GetLabel( int id ) const
 {
     wxMenuItem *item = FindItem(id);
 
-    wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetLabel: no such item") );
+    wxCHECK_MSG( item, wxEmptyString, wxT("wxMenu::GetLabel: no such item") );
 
     return item->GetText();
 }
@@ -724,7 +724,7 @@ wxString wxMenuBase::GetHelpString( int id ) const
 {
     wxMenuItem *item = FindItem(id);
 
-    wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetHelpString: no such item") );
+    wxCHECK_MSG( item, wxEmptyString, wxT("wxMenu::GetHelpString: no such item") );
 
     return item->GetHelp();
 }

src/common/mimecmn.cpp

@@ -196,7 +196,7 @@ wxString wxFileType::ExpandCommand(const wxString& command,
     // know of the correct solution, try to guess what we have to do.
 
     // test now carried out on reading file so test should never get here
-    if ( !hasFilename && !str.IsEmpty()
+    if ( !hasFilename && !str.empty()
 #ifdef __UNIX__
                       && !str.StartsWith(_T("test "))
 #endif // Unix
@@ -428,7 +428,7 @@ bool wxFileType::SetDefaultIcon(const wxString& cmd, int index)
     // VZ: should we do this?
     // chris elliott : only makes sense in MS windows
     if ( sTmp.empty() )
-        GetOpenCommand(&sTmp, wxFileType::MessageParameters(wxT(""), wxT("")));
+        GetOpenCommand(&sTmp, wxFileType::MessageParameters(wxEmptyString, wxEmptyString));
 #endif
     wxCHECK_MSG( !sTmp.empty(), false, _T("need the icon file") );
 

src/common/object.cpp

@@ -56,7 +56,7 @@ const wxClassInfo* wxObject::ms_classParents[] = { NULL } ;
 { return &data.wxTEMPLATED_MEMBER_CALL(Get , wxObject) ; }
  wxxVariant wxObjectToVariantConverterwxObject ( wxObject *data )
  { return wxxVariant( dynamic_cast<wxObject*> (data)  ) ; }
- wxClassInfo wxObject::ms_classInfo(ms_classParents , wxT("") , wxT("wxObject"),
+ wxClassInfo wxObject::ms_classInfo(ms_classParents , wxEmptyString , wxT("wxObject"),
             (int) sizeof(wxObject),                              \
             (wxObjectConstructorFn) 0   ,
             (wxPropertyInfo*) NULL,(wxHandlerInfo*) NULL,0 , 0 ,

src/common/paper.cpp

@@ -59,7 +59,7 @@ wxPrintPaperType::wxPrintPaperType()
 {
     m_paperId = wxPAPER_NONE;
     m_platformId = 0;
-    m_paperName = wxT("");
+    m_paperName = wxEmptyString;
     m_width = 0;
     m_height = 0;
 }

src/common/sckaddr.cpp

@@ -141,7 +141,7 @@ wxIPV4address::~wxIPV4address()
 bool wxIPV4address::Hostname(const wxString& name)
 {
   // Some people are sometimes fool.
-  if (name == wxT(""))
+  if (name.empty())
   {
     wxLogWarning( _("Trying to solve a NULL hostname: giving up") );
     return false;
@@ -245,7 +245,7 @@ wxIPV6address::~wxIPV6address()
 
 bool wxIPV6address::Hostname(const wxString& name)
 {
-  if (name == wxT(""))
+  if (name.empty())
   {
     wxLogWarning( _("Trying to solve a NULL hostname: giving up") );
     return false;

src/common/sckipc.cpp

@@ -86,7 +86,7 @@ enum
 
 // get the address object for the given server name, the caller must delete it
 static wxSockAddress *
-GetAddressFromName(const wxString& serverName, const wxString& host = _T(""))
+GetAddressFromName(const wxString& serverName, const wxString& host = wxEmptyString)
 {
     // we always use INET sockets under non-Unix systems
 #if defined(__UNIX__) && !defined(__WXMAC__) && !defined(__WINE__)

src/common/tbarbase.cpp

@@ -563,7 +563,7 @@ bool wxToolBarBase::GetToolEnabled(int id) const
 wxString wxToolBarBase::GetToolShortHelp(int id) const
 {
     wxToolBarToolBase *tool = FindById(id);
-    wxCHECK_MSG( tool, _T(""), _T("no such tool") );
+    wxCHECK_MSG( tool, wxEmptyString, _T("no such tool") );
 
     return tool->GetShortHelp();
 }
@@ -571,7 +571,7 @@ wxString wxToolBarBase::GetToolShortHelp(int id) const
 wxString wxToolBarBase::GetToolLongHelp(int id) const
 {
     wxToolBarToolBase *tool = FindById(id);
-    wxCHECK_MSG( tool, _T(""), _T("no such tool") );
+    wxCHECK_MSG( tool, wxEmptyString, _T("no such tool") );
 
     return tool->GetLongHelp();
 }

src/common/textbuf.cpp

@@ -63,7 +63,7 @@ const wxChar *wxTextBuffer::GetEOL(wxTextFileType type)
             wxFAIL_MSG(wxT("bad buffer type in wxTextBuffer::GetEOL."));
             // fall through nevertheless - we must return something...
 
-        case wxTextFileType_None: return wxT("");
+        case wxTextFileType_None: return wxEmptyString;
         case wxTextFileType_Unix: return wxT("\n");
         case wxTextFileType_Dos:  return wxT("\r\n");
         case wxTextFileType_Mac:  return wxT("\r");

src/common/uri.cpp

@@ -79,7 +79,7 @@ wxURI::~wxURI()
 void wxURI::Clear()
 {
     m_scheme = m_user = m_server = m_port = m_path =
-    m_query = m_fragment = wxT("");
+    m_query = m_fragment = wxEmptyString;
 
     m_hostType = wxURI_REGNAME;
 
@@ -401,7 +401,7 @@ const wxChar* wxURI::ParseScheme(const wxChar* uri)
         }
         else
             //relative uri with relative path reference
-            m_scheme = wxT("");
+            m_scheme = wxEmptyString;
     }
 //    else
         //relative uri with _possible_ relative path reference
@@ -450,7 +450,7 @@ const wxChar* wxURI::ParseUser(const wxChar* uri)
         uricopy = ++uri;
     }
     else
-        m_user = wxT("");
+        m_user = wxEmptyString;
 
     return uricopy;
 }

src/common/utilscmn.cpp

@@ -119,7 +119,7 @@
 wxChar *
 copystring (const wxChar *s)
 {
-  if (s == NULL) s = wxT("");
+  if (s == NULL) s = wxEmptyString;
   size_t len = wxStrlen (s) + 1;
 
   wxChar *news = new wxChar[len];
@@ -281,7 +281,7 @@ const wxChar *wxGetInstallPrefix()
 #ifdef wxINSTALL_PREFIX
     return wxT(wxINSTALL_PREFIX);
 #else
-    return wxT("");
+    return wxEmptyString;
 #endif
 }
 

src/common/variant.cpp

@@ -164,7 +164,7 @@ bool wxVariantDataList::Write(wxSTD ostream& str) const
 
 bool wxVariantDataList::Write(wxString& str) const
 {
-    str = wxT("");
+    str = wxEmptyString;
     wxList::compatibility_iterator node = m_value.GetFirst();
     while (node)
     {
@@ -1769,7 +1769,7 @@ wxString wxVariant::MakeString() const
         if (GetData()->Write(str))
             return str;
     }
-    return wxString(wxT(""));
+    return wxEmptyString;
 }
 
 // Accessors

src/common/wincmn.cpp

@@ -1376,7 +1376,7 @@ wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent)
 wxWindow *
 wxWindowBase::FindWindowById( long id, const wxWindow* parent )
 {
-    return wxFindWindowHelper(parent, _T(""), id, wxFindWindowCmpIds);
+    return wxFindWindowHelper(parent, wxEmptyString, id, wxFindWindowCmpIds);
 }
 
 // ----------------------------------------------------------------------------
@@ -2232,7 +2232,7 @@ void wxWindowBase::OnMiddleClick( wxMouseEvent& event )
 #ifdef __WXDEBUG__
                                       _T(" Debug build"),
 #else
-                                      _T(""),
+                                      wxEmptyString,
 #endif
                                       __TDATE__,
                                       __TTIME__

src/common/wxchar.cpp

@@ -501,7 +501,7 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
                             }
                             else
                             {
-                                val = wxT("");
+                                val = wxEmptyString;
                                 len = 0;
                             }
 

src/common/xti.cpp

@@ -88,7 +88,7 @@ const wxChar *wxEnumData::GetEnumMemberName(int value) const
         if (value == m_members[i].m_value)
             return m_members[i].m_name;
 
-    return wxT("") ;
+    return wxEmptyString ;
 }
 
 int wxEnumData::GetEnumMemberValueByIndex( int idx ) const
@@ -318,13 +318,13 @@ void wxTypeInfo::Register()
     if ( ms_typeTable == NULL )
         ms_typeTable = new wxTypeInfoMap() ;
 
-    if( !m_name.IsEmpty() )
+    if( !m_name.empty() )
         (*ms_typeTable)[m_name] = this ;
 }
 
 void wxTypeInfo::Unregister()
 {
-    if( !m_name.IsEmpty() )
+    if( !m_name.empty() )
         ms_typeTable->erase(m_name);
 }