implemented GetBestSize() (TODO: make this available in generic version as well)

[wxWidgets.git] / include / wx / string.h

diff --git a/include/wx/string.h b/include/wx/string.h
index 3b8db06455be50e4ccdc7f81ffc497be37bfe9cb..151ca4037a0b6ef5ff6efe04bc44c8fadba0cd23 100644 (file)
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -18,10 +18,6 @@
 #ifndef _WX_WXSTRINGH__
 #define _WX_WXSTRINGH__
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma interface "string.h"
-#endif
-
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
@@ -163,7 +159,12 @@ inline int Stricmp(const char *psz1, const char *psz2)
 #endif  // OS/compiler
 }
 
-#if wxUSE_STL
+// ----------------------------------------------------------------------------
+// deal with STL/non-STL/non-STL-but-wxUSE_STD_STRING
+// ----------------------------------------------------------------------------
+
+// in both cases we need to define wxStdString
+#if wxUSE_STL || wxUSE_STD_STRING
 
 #include "wx/beforestd.h"
 #include <string>
@@ -171,22 +172,33 @@ inline int Stricmp(const char *psz1, const char *psz2)
 
 #if wxUSE_UNICODE
     #ifdef HAVE_STD_WSTRING
-        typedef std::wstring wxStringBase;
+        typedef std::wstring wxStdString;
     #else
-        typedef std::basic_string<wxChar> wxStringBase;
+        typedef std::basic_string<wxChar> wxStdString;
     #endif
 #else
-    typedef std::string wxStringBase;
+    typedef std::string wxStdString;
 #endif
 
-#if (defined(__GNUG__) && (__GNUG__ < 3)) || \
-    (defined(_MSC_VER) && (_MSC_VER <= 1200))
-    #define wxSTRING_BASE_HASNT_CLEAR
-#endif
+#endif // need <string>
+
+#if wxUSE_STL
+
+    // we don't need an extra ctor from std::string when copy ctor already does
+    // the work
+    #undef wxUSE_STD_STRING
+    #define wxUSE_STD_STRING 0
+
+    #if (defined(__GNUG__) && (__GNUG__ < 3)) || \
+        (defined(_MSC_VER) && (_MSC_VER <= 1200))
+        #define wxSTRING_BASE_HASNT_CLEAR
+    #endif
 
+    typedef wxStdString wxStringBase;
 #else // if !wxUSE_STL
 
-#ifndef HAVE_STD_STRING_COMPARE
+#if !defined(HAVE_STD_STRING_COMPARE) && \
+    (!defined(__WX_SETUP_H__) || wxUSE_STL == 0)
     #define HAVE_STD_STRING_COMPARE
 #endif
 
@@ -502,11 +514,8 @@ public:
     // find a substring
   size_t find(const wxStringBase& str, size_t nStart = 0) const;
 
-  // VC++ 1.5 can't cope with this syntax.
-#if !defined(__VISUALC__) || defined(__WIN32__)
     // find first n characters of sz
   size_t find(const wxChar* sz, size_t nStart = 0, size_t n = npos) const;
-#endif // VC++ 1.5
 
     // find the first occurence of character ch after nStart
   size_t find(wxChar ch, size_t nStart = 0) const;
@@ -516,7 +525,6 @@ public:
     // as find, but from the end
   size_t rfind(const wxStringBase& str, size_t nStart = npos) const;
 
-  // VC++ 1.5 can't cope with this syntax.
     // as find, but from the end
   size_t rfind(const wxChar* sz, size_t nStart = npos,
                size_t n = npos) const;
@@ -645,6 +653,17 @@ public:
   wxString(const wxChar *psz, wxMBConv& WXUNUSED(conv), size_t nLength = npos)
       : wxStringBase(psz, nLength == npos ? wxStrlen(psz) : nLength) { }
 
+  // even we're not build with wxUSE_STL == 1 it is very convenient to allow
+  // implicit conversions from std::string to wxString as this allows to use
+  // the same strings in non-GUI and GUI code, however we don't want to
+  // unconditionally add this ctor as it would make wx lib dependent on
+  // libstdc++ on some Linux versions which is bad, so instead we ask the
+  // client code to define this wxUSE_STD_STRING symbol if they need it
+#if wxUSE_STD_STRING
+  wxString(const wxStdString& s)
+      : wxStringBase(s.c_str()) { }
+#endif // wxUSE_STD_STRING
+
 #if wxUSE_UNICODE
     // from multibyte string
   wxString(const char *psz, wxMBConv& conv, size_t nLength = npos);
@@ -679,7 +698,7 @@ public:
   {
     Truncate(0);
 
-    wxASSERT_MSG( IsEmpty(), _T("string not empty after call to Empty()?") );
+    wxASSERT_MSG( empty(), _T("string not empty after call to Empty()?") );
   }
     // empty the string and free memory
   void Clear()
@@ -710,7 +729,7 @@ public:
     // get last character
     wxChar  Last() const
       {
-          wxASSERT_MSG( !IsEmpty(), _T("wxString: index out of bounds") );
+          wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
 
           return at(length() - 1);
       }
@@ -718,7 +737,7 @@ public:
     // get writable last character
     wxChar& Last()
       {
-          wxASSERT_MSG( !IsEmpty(), _T("wxString: index out of bounds") );
+          wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
           return at(length() - 1);
       }
 
@@ -826,9 +845,16 @@ public:
     // from a character
   wxString& operator=(wxChar ch)
     { return (wxString&)wxStringBase::operator=(ch); }
-    // from a C string
+    // from a C string - STL probably will crash on NULL,
+    // so we need to compensate in that case
+#if wxUSE_STL
+  wxString& operator=(const wxChar *psz)
+    { if(psz) wxStringBase::operator=(psz); else Clear(); return *this; }
+#else
   wxString& operator=(const wxChar *psz)
     { return (wxString&)wxStringBase::operator=(psz); }
+#endif
+
 #if wxUSE_UNICODE
     // from wxWCharBuffer
   wxString& operator=(const wxWCharBuffer& psz)
@@ -885,8 +911,8 @@ public:
     // string += C string
   wxString& Append(const wxString& s)
     {
-        // test for IsEmpty() to share the string if possible
-        if ( IsEmpty() )
+        // test for empty() to share the string if possible
+        if ( empty() )
             *this = s;
         else
             append(s);
@@ -1106,8 +1132,8 @@ public:
   int Last( const wxChar ch ) const { return Find(ch, true); }
   bool Contains(const wxString& str) const { return Find(str) != wxNOT_FOUND; }
 
-    // use IsEmpty()
-  bool IsNull() const { return IsEmpty(); }
+    // use empty()
+  bool IsNull() const { return empty(); }
 
   // std::string compatibility functions
 
@@ -1160,7 +1186,7 @@ public:
     { return (wxString&)wxStringBase::assign(first, last); }
 
     // string comparison
-#ifndef HAVE_STD_STRING_COMPARE
+#if !defined(HAVE_STD_STRING_COMPARE)
   int compare(const wxStringBase& str) const;
     // comparison with a substring
   int compare(size_t nStart, size_t nLen, const wxStringBase& str) const;
@@ -1249,6 +1275,17 @@ public:
     { return (wxString&)wxStringBase::operator+=(ch); }
 };
 
+// IBM xlC compiler needs these operators to be declared in global scope,
+// although this shouldn't be a problem for the other compilers we prefer to
+// only do it for it in stable 2.6 branch
+#ifdef __IBMCPP__
+wxString WXDLLIMPEXP_BASE operator+(const wxString& string1,  const wxString& string2);
+wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
+wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
+wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz);
+wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string);
+#endif // __IBMCPP__
+
 // define wxArrayString, for compatibility
 #if WXWIN_COMPATIBILITY_2_4 && !wxUSE_STL
     #include "wx/arrstr.h"
@@ -1438,12 +1475,6 @@ inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
     { return (s2.Cmp((const char *)s1) != 0); }
 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 
-wxString WXDLLIMPEXP_BASE operator+(const wxString& string1,  const wxString& string2);
-wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
-wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
-wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz);
-wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string);
-
 #if wxUSE_UNICODE
 inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
     { return string + (const wchar_t *)buf; }