added checks for more wxUSE_SVG dependencies: wxUSE_IMAGE and wxUSE_LIBPNG

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

diff --git a/include/wx/string.h b/include/wx/string.h
index 0462f4f2e851ef67bd1e67fa4876a0582f75e4fe..2d79486f836222ee9c9e1080d84986d5c5c3666e 100644 (file)
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -59,7 +59,7 @@
 #include "wx/stringops.h"
 #include "wx/unichar.h"
 
 #include "wx/stringops.h"
 #include "wx/unichar.h"
 

-class WXDLLIMPEXP_BASE wxString;
+class WXDLLIMPEXP_FWD_BASE wxString;

 
 // unless this symbol is predefined to disable the compatibility functions, do
 // use them
 
 // unless this symbol is predefined to disable the compatibility functions, do
 // use them


@@ -276,7 +276,7 @@ private:
     size_t m_offset;
     bool m_owned;
 
     size_t m_offset;
     bool m_owned;
 

-    friend class WXDLLIMPEXP_BASE wxString;
+    friend class WXDLLIMPEXP_FWD_BASE wxString;

 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------


@@ -342,14 +342,16 @@ public:
     // We have to implement the version without template arguments manually
     // because of the StringReturnType<> hack, although WX_DEFINE_VARARG_FUNC
     // normally does it itself. It has to be a template so that we can use
     // We have to implement the version without template arguments manually
     // because of the StringReturnType<> hack, although WX_DEFINE_VARARG_FUNC
     // normally does it itself. It has to be a template so that we can use

-    // the hack, even though there's no real template parameter:
-    struct FormatDummyArg {} ;
-
+    // the hack, even though there's no real template parameter. We can't move
+    // it to wxStrig, because it would shadow these versions of Format() then.

     template<typename T>
     inline static typename StringReturnType<T>::type
     template<typename T>
     inline static typename StringReturnType<T>::type

-    Format(const wxFormatString& fmt, FormatDummyArg dummy = FormatDummyArg())
+    Format(const T& fmt)

     {
     {

-        return DoFormatWchar(fmt);
+        // NB: this doesn't compile if T is not (some form of) a string;
+        //     this makes Format's prototype equivalent to
+        //     Format(const wxFormatString& fmt)
+        return DoFormatWchar(wxFormatString(fmt));

     }
 
     // int Printf(const wxString& format, ...);
     }
 
     // int Printf(const wxString& format, ...);


@@ -378,8 +380,9 @@ protected:
 
 #if wxUSE_UNICODE_UTF8
 // see the comment near wxString::iterator for why we need this
 
 #if wxUSE_UNICODE_UTF8
 // see the comment near wxString::iterator for why we need this

-struct WXDLLIMPEXP_BASE wxStringIteratorNode
+class WXDLLIMPEXP_BASE wxStringIteratorNode

 {
 {

+public:

     wxStringIteratorNode()
         : m_str(NULL), m_citer(NULL), m_iter(NULL), m_prev(NULL), m_next(NULL) {}
     wxStringIteratorNode(const wxString *str,
     wxStringIteratorNode()
         : m_str(NULL), m_citer(NULL), m_iter(NULL), m_prev(NULL), m_next(NULL) {}
     wxStringIteratorNode(const wxString *str,


@@ -652,13 +655,13 @@ public:
           /* for internal wxString use only: */                             \
           underlying_iterator impl() const { return m_cur; }                \
                                                                             \
           /* for internal wxString use only: */                             \
           underlying_iterator impl() const { return m_cur; }                \
                                                                             \

-          friend class WXDLLIMPEXP_BASE wxString;                           \
-          friend class WXDLLIMPEXP_BASE wxCStrData;                         \
+          friend class wxString;                                            \
+          friend class wxCStrData;                                          \

                                                                             \
       private:                                                              \
           underlying_iterator m_cur
 
                                                                             \
       private:                                                              \
           underlying_iterator m_cur
 

-  class WXDLLIMPEXP_BASE const_iterator;
+  class WXDLLIMPEXP_FWD_BASE const_iterator;

 
 #if wxUSE_UNICODE_UTF8
   // NB: In UTF-8 build, (non-const) iterator needs to keep reference
 
 #if wxUSE_UNICODE_UTF8
   // NB: In UTF-8 build, (non-const) iterator needs to keep reference


@@ -931,7 +934,7 @@ public:
   wxString(const wxString& stringSrc) : m_impl(stringSrc.m_impl) { }
 
     // string containing nRepeat copies of ch
   wxString(const wxString& stringSrc) : m_impl(stringSrc.m_impl) { }
 
     // string containing nRepeat copies of ch

-  wxString(wxUniChar ch, size_t nRepeat = 1)
+  wxString(wxUniChar ch, size_t nRepeat = 1 )

     { assign(nRepeat, ch); }
   wxString(size_t nRepeat, wxUniChar ch)
     { assign(nRepeat, ch); }
     { assign(nRepeat, ch); }
   wxString(size_t nRepeat, wxUniChar ch)
     { assign(nRepeat, ch); }


@@ -1085,19 +1088,25 @@ public:
 
   void resize(size_t nSize, wxUniChar ch = wxT('\0'))
   {
 
   void resize(size_t nSize, wxUniChar ch = wxT('\0'))
   {

+    const size_t len = length();
+    if ( nSize == len)
+        return;
+

 #if wxUSE_UNICODE_UTF8
 #if wxUSE_UNICODE_UTF8

-    if ( !ch.IsAscii() )
+    if ( nSize < len )

     {
     {

-        size_t len = length();
-        if ( nSize == len)
-            return;
-        else if ( nSize < len )
-            erase(nSize);
-        else
-            append(nSize - len, ch);
+        // we can't use wxStringImpl::resize() for truncating the string as it
+        // counts in bytes, not characters
+        erase(nSize);
+        return;

     }
     }

+
+    // we also can't use (presumably more efficient) resize() if we have to
+    // append characters taking more than one byte
+    if ( !ch.IsAscii() )
+        append(nSize - len, ch);

     else
     else

-#endif
+#endif // wxUSE_UNICODE_UTF8

         m_impl.resize(nSize, (wxStringCharType)ch);
   }
 
         m_impl.resize(nSize, (wxStringCharType)ch);
   }
 


@@ -1202,17 +1211,20 @@ public:
     // implicit conversion to C string
     operator wxCStrData() const { return c_str(); }
 
     // implicit conversion to C string
     operator wxCStrData() const { return c_str(); }
 

-    // these operators conflict with operators for conversion to std::string,
-    // so they must be disabled in STL build:
+    // the first two operators conflict with operators for conversion to
+    // std::string and they must be disabled in STL build; the next one only
+    // makes sense if conversions to char* are also defined and not defining it
+    // in STL build also helps us to get more clear error messages for the code
+    // which relies on implicit conversion to char* in STL build

 #if !wxUSE_STL
     operator const char*() const { return c_str(); }
     operator const wchar_t*() const { return c_str(); }
 #if !wxUSE_STL
     operator const char*() const { return c_str(); }
     operator const wchar_t*() const { return c_str(); }

-#endif

 
     // implicit conversion to untyped pointer for compatibility with previous
     // wxWidgets versions: this is the same as conversion to const char * so it
     // may fail!
     operator const void*() const { return c_str(); }
 
     // implicit conversion to untyped pointer for compatibility with previous
     // wxWidgets versions: this is the same as conversion to const char * so it
     // may fail!
     operator const void*() const { return c_str(); }

+#endif // wxUSE_STL

 
     // identical to c_str(), for MFC compatibility
     const wxCStrData GetData() const { return c_str(); }
 
     // identical to c_str(), for MFC compatibility
     const wxCStrData GetData() const { return c_str(); }


@@ -1235,18 +1247,25 @@ public:
     // the behaviour of these functions with the strings containing anything
     // else than 7 bit ASCII characters is undefined, use at your own risk.
 #if wxUSE_UNICODE
     // the behaviour of these functions with the strings containing anything
     // else than 7 bit ASCII characters is undefined, use at your own risk.
 #if wxUSE_UNICODE

-    static wxString FromAscii(const char *ascii, size_t len);  // string
-    static wxString FromAscii(const char *ascii);  // string
-    static wxString FromAscii(const char ascii);   // char
+    static wxString FromAscii(const char *ascii, size_t len);
+    static wxString FromAscii(const char *ascii);
+    static wxString FromAscii(char ascii);

     const wxCharBuffer ToAscii() const;
 #else // ANSI
     static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
     static wxString FromAscii(const char *ascii, size_t len)
         { return wxString( ascii, len ); }
     const wxCharBuffer ToAscii() const;
 #else // ANSI
     static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
     static wxString FromAscii(const char *ascii, size_t len)
         { return wxString( ascii, len ); }

-    static wxString FromAscii(const char ascii) { return wxString( ascii ); }
+    static wxString FromAscii(char ascii) { return wxString( ascii ); }

     const char *ToAscii() const { return c_str(); }
 #endif // Unicode/!Unicode
 
     const char *ToAscii() const { return c_str(); }
 #endif // Unicode/!Unicode
 

+    // also provide unsigned char overloads as signed/unsigned doesn't matter
+    // for 7 bit ASCII characters
+    static wxString FromAscii(const unsigned char *ascii)
+        { return FromAscii((const char *)ascii); }
+    static wxString FromAscii(const unsigned char *ascii, size_t len)
+        { return FromAscii((const char *)ascii, len); }
+

     // conversion to/from UTF-8:
 #if wxUSE_UNICODE_UTF8
     static wxString FromUTF8(const char *utf8)
     // conversion to/from UTF-8:
 #if wxUSE_UNICODE_UTF8
     static wxString FromUTF8(const char *utf8)


@@ -1353,11 +1372,7 @@ public:
 #if wxUSE_WCHAR_T
     const wxWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const;
 #endif // wxUSE_WCHAR_T
 #if wxUSE_WCHAR_T
     const wxWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const;
 #endif // wxUSE_WCHAR_T

-#ifdef __WXOSX__

     const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); }
     const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); }

-#else
-    const wxChar* fn_str() const { return c_str(); }
-#endif

 #endif // Unicode/ANSI
 
   // overloaded assignment
 #endif // Unicode/ANSI
 
   // overloaded assignment


@@ -2627,13 +2642,13 @@ private:
 
   wxStringIteratorNodeHead m_iterators;
 
 
   wxStringIteratorNodeHead m_iterators;
 

-  friend class WXDLLIMPEXP_BASE wxStringIteratorNode;
-  friend class WXDLLIMPEXP_BASE wxUniCharRef;
+  friend class WXDLLIMPEXP_FWD_BASE wxStringIteratorNode;
+  friend class WXDLLIMPEXP_FWD_BASE wxUniCharRef;

 #endif // wxUSE_UNICODE_UTF8
 
 #endif // wxUSE_UNICODE_UTF8
 

-  friend class WXDLLIMPEXP_BASE wxCStrData;
-  friend class wxImplStringBuffer;
-  friend class wxImplStringBufferLength;
+  friend class WXDLLIMPEXP_FWD_BASE wxCStrData;
+  friend class wxStringInternalBuffer;
+  friend class wxStringInternalBufferLength;

 };
 
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
 };
 
 #ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN


@@ -2686,16 +2701,7 @@ inline wxString operator+(wchar_t ch, const wxString& string)
     { return wxUniChar(ch) + string; }
 
 
     { return wxUniChar(ch) + string; }
 
 

-#if wxUSE_STL_BASED_WXSTRING
-    // return an empty wxString (not very useful with wxUSE_STL == 1)
-    inline const wxString wxGetEmptyString() { return wxString(); }
-#else // !wxUSE_STL_BASED_WXSTRING
-    // return an empty wxString (more efficient than wxString() here)
-    inline const wxString& wxGetEmptyString()
-    {
-        return *(wxString *)&wxEmptyString;
-    }
-#endif // wxUSE_STL_BASED_WXSTRING/!wxUSE_STL_BASED_WXSTRING
+#define wxGetEmptyString() wxString()

 
 // ----------------------------------------------------------------------------
 // wxStringBuffer: a tiny class allowing to get a writable pointer into string
 
 // ----------------------------------------------------------------------------
 // wxStringBuffer: a tiny class allowing to get a writable pointer into string


@@ -2704,16 +2710,16 @@ inline wxString operator+(wchar_t ch, const wxString& string)
 #if !wxUSE_STL_BASED_WXSTRING
 // string buffer for direct access to string data in their native
 // representation:
 #if !wxUSE_STL_BASED_WXSTRING
 // string buffer for direct access to string data in their native
 // representation:

-class wxImplStringBuffer
+class wxStringInternalBuffer

 {
 public:
     typedef wxStringCharType CharType;
 
 {
 public:
     typedef wxStringCharType CharType;
 

-    wxImplStringBuffer(wxString& str, size_t lenWanted = 1024)
+    wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)

         : m_str(str), m_buf(NULL)
         { m_buf = m_str.DoGetWriteBuf(lenWanted); }
 
         : m_str(str), m_buf(NULL)
         { m_buf = m_str.DoGetWriteBuf(lenWanted); }
 

-    ~wxImplStringBuffer() { m_str.DoUngetWriteBuf(); }
+    ~wxStringInternalBuffer() { m_str.DoUngetWriteBuf(); }

 
     operator wxStringCharType*() const { return m_buf; }
 
 
     operator wxStringCharType*() const { return m_buf; }
 


@@ -2721,22 +2727,22 @@ private:
     wxString&         m_str;
     wxStringCharType *m_buf;
 
     wxString&         m_str;
     wxStringCharType *m_buf;
 

-    DECLARE_NO_COPY_CLASS(wxImplStringBuffer)
+    DECLARE_NO_COPY_CLASS(wxStringInternalBuffer)

 };
 
 };
 

-class wxImplStringBufferLength
+class wxStringInternalBufferLength

 {
 public:
     typedef wxStringCharType CharType;
 
 {
 public:
     typedef wxStringCharType CharType;
 

-    wxImplStringBufferLength(wxString& str, size_t lenWanted = 1024)
+    wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024)

         : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
     {
         m_buf = m_str.DoGetWriteBuf(lenWanted);
         wxASSERT(m_buf != NULL);
     }
 
         : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
     {
         m_buf = m_str.DoGetWriteBuf(lenWanted);
         wxASSERT(m_buf != NULL);
     }
 

-    ~wxImplStringBufferLength()
+    ~wxStringInternalBufferLength()

     {
         wxASSERT(m_lenSet);
         m_str.DoUngetWriteBuf(m_len);
     {
         wxASSERT(m_lenSet);
         m_str.DoUngetWriteBuf(m_len);


@@ -2751,13 +2757,13 @@ private:
     size_t            m_len;
     bool              m_lenSet;
 
     size_t            m_len;
     bool              m_lenSet;
 

-    DECLARE_NO_COPY_CLASS(wxImplStringBufferLength)
+    DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength)

 };
 
 #endif // !wxUSE_STL_BASED_WXSTRING
 
 template<typename T>
 };
 
 #endif // !wxUSE_STL_BASED_WXSTRING
 
 template<typename T>

-class wxStringTypeBufferBase
+class WXDLLIMPEXP_BASE wxStringTypeBufferBase

 {
 public:
     typedef T CharType;
 {
 public:
     typedef T CharType;


@@ -2775,7 +2781,7 @@ protected:
 };
 
 template<typename T>
 };
 
 template<typename T>

-class wxStringTypeBufferLengthBase
+class WXDLLIMPEXP_BASE wxStringTypeBufferLengthBase

 {
 public:
     typedef T CharType;
 {
 public:
     typedef T CharType;


@@ -2784,12 +2790,6 @@ public:
         : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
         { }
 
         : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
         { }
 

-    ~wxStringTypeBufferLengthBase()
-    {
-        wxASSERT(m_lenSet);
-        m_str.assign(m_buf.data(), m_len);
-    }
-

     operator CharType*() { return m_buf.data(); }
     void SetLength(size_t length) { m_len = length; m_lenSet = true; }
 
     operator CharType*() { return m_buf.data(); }
     void SetLength(size_t length) { m_len = length; m_lenSet = true; }
 


@@ -2831,30 +2831,37 @@ public:
 };
 
 #if wxUSE_STL_BASED_WXSTRING
 };
 
 #if wxUSE_STL_BASED_WXSTRING

-class wxImplStringBuffer : public wxStringTypeBufferBase<wxStringCharType>
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase<wxStringCharType> )
+
+class wxStringInternalBuffer : public wxStringTypeBufferBase<wxStringCharType>

 {
 public:
 {
 public:

-    wxImplStringBuffer(wxString& str, size_t lenWanted = 1024)
+    wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)

         : wxStringTypeBufferBase<wxStringCharType>(str, lenWanted) {}
         : wxStringTypeBufferBase<wxStringCharType>(str, lenWanted) {}

-    ~wxImplStringBuffer()
+    ~wxStringInternalBuffer()

         { m_str.m_impl.assign(m_buf.data()); }
 
         { m_str.m_impl.assign(m_buf.data()); }
 

-    DECLARE_NO_COPY_CLASS(wxImplStringBuffer)
+    DECLARE_NO_COPY_CLASS(wxStringInternalBuffer)

 };
 
 };
 

-class wxImplStringBufferLength : public wxStringTypeBufferLengthBase<wxStringCharType>
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE(
+    wxStringTypeBufferLengthBase<wxStringCharType> )
+
+class wxStringInternalBufferLength
+    : public wxStringTypeBufferLengthBase<wxStringCharType>

 {
 public:
 {
 public:

-    wxImplStringBufferLength(wxString& str, size_t lenWanted = 1024)
+    wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024)

         : wxStringTypeBufferLengthBase<wxStringCharType>(str, lenWanted) {}
 
         : wxStringTypeBufferLengthBase<wxStringCharType>(str, lenWanted) {}
 

-    ~wxImplStringBufferLength()
+    ~wxStringInternalBufferLength()

     {
         wxASSERT(m_lenSet);
         m_str.m_impl.assign(m_buf.data(), m_len);
     }
 
     {
         wxASSERT(m_lenSet);
         m_str.m_impl.assign(m_buf.data(), m_len);
     }
 

-    DECLARE_NO_COPY_CLASS(wxImplStringBufferLength)
+    DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength)

 };
 #endif // wxUSE_STL_BASED_WXSTRING
 
 };
 #endif // wxUSE_STL_BASED_WXSTRING
 


@@ -2863,10 +2870,42 @@ public:
 typedef wxStringTypeBuffer<wxChar>        wxStringBuffer;
 typedef wxStringTypeBufferLength<wxChar>  wxStringBufferLength;
 #else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
 typedef wxStringTypeBuffer<wxChar>        wxStringBuffer;
 typedef wxStringTypeBufferLength<wxChar>  wxStringBufferLength;
 #else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8

-typedef wxImplStringBuffer                wxStringBuffer;
-typedef wxImplStringBufferLength          wxStringBufferLength;
+typedef wxStringInternalBuffer                wxStringBuffer;
+typedef wxStringInternalBufferLength          wxStringBufferLength;

 #endif // !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
 
 #endif // !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
 

+#if wxUSE_UNICODE_UTF8
+typedef wxStringInternalBuffer                wxUTF8StringBuffer;
+typedef wxStringInternalBufferLength          wxUTF8StringBufferLength;
+#elif wxUSE_UNICODE_WCHAR
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase<char> )
+
+class WXDLLIMPEXP_BASE wxUTF8StringBuffer : public wxStringTypeBufferBase<char>
+{
+public:
+    wxUTF8StringBuffer(wxString& str, size_t lenWanted = 1024)
+        : wxStringTypeBufferBase<char>(str, lenWanted) {}
+    ~wxUTF8StringBuffer();
+
+    DECLARE_NO_COPY_CLASS(wxUTF8StringBuffer)
+};
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferLengthBase<char> )
+
+class WXDLLIMPEXP_BASE wxUTF8StringBufferLength
+    : public wxStringTypeBufferLengthBase<char>
+{
+public:
+    wxUTF8StringBufferLength(wxString& str, size_t lenWanted = 1024)
+        : wxStringTypeBufferLengthBase<char>(str, lenWanted) {}
+    ~wxUTF8StringBufferLength();
+
+    DECLARE_NO_COPY_CLASS(wxUTF8StringBufferLength)
+};
+#endif // wxUSE_UNICODE_UTF8/wxUSE_UNICODE_WCHAR
+
+

 // ---------------------------------------------------------------------------
 // wxString comparison functions: operator versions are always case sensitive
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // wxString comparison functions: operator versions are always case sensitive
 // ---------------------------------------------------------------------------


@@ -2989,7 +3028,15 @@ WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxCharBuffer&);
 WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxWCharBuffer&);
 #endif
 
 WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxWCharBuffer&);
 #endif
 

-#endif  // wxSTD_STRING_COMPATIBILITY
+#if wxUSE_UNICODE && defined(HAVE_WOSTREAM)
+
+WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxString&);
+WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxCStrData&);
+WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxWCharBuffer&);
+
+#endif  // wxUSE_UNICODE && defined(HAVE_WOSTREAM)
+
+#endif  // wxUSE_STD_IOSTREAM

 
 // ---------------------------------------------------------------------------
 // wxCStrData implementation
 
 // ---------------------------------------------------------------------------
 // wxCStrData implementation


@@ -3010,7 +3057,7 @@ inline wxCStrData::wxCStrData(const wxCStrData& data)
 inline wxCStrData::~wxCStrData()
 {
     if ( m_owned )
 inline wxCStrData::~wxCStrData()
 {
     if ( m_owned )

-        delete m_str;
+        delete wx_const_cast(wxString*, m_str); // cast to silence warnings

 }
 
 // simple cases for AsChar() and AsWChar(), the complicated ones are
 }
 
 // simple cases for AsChar() and AsWChar(), the complicated ones are