support for iPhone callbacks

[wxWidgets.git] / interface / wx / strconv.h

diff --git a/interface/wx/strconv.h b/interface/wx/strconv.h
index a234e7e06d310f224468915dabfe442d106ff263..fd0169589c5c43c3da41eaa6b27f7434c1e62b17 100644 (file)
--- a/interface/wx/strconv.h
+++ b/interface/wx/strconv.h
@@ -3,7 +3,7 @@
 // Purpose:     interface of wxMBConvUTF7
 // Author:      wxWidgets team
 // RCS-ID:      $Id$
 // Purpose:     interface of wxMBConvUTF7
 // Author:      wxWidgets team
 // RCS-ID:      $Id$

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /**
 /////////////////////////////////////////////////////////////////////////////
 
 /**


@@ -67,7 +67,7 @@ public:
         This method can be used to allocate the buffer with enough space for the
         trailing @c NUL characters for any encoding.
     */
         This method can be used to allocate the buffer with enough space for the
         trailing @c NUL characters for any encoding.
     */

-    const size_t GetMaxMBNulLen();
+    static size_t GetMaxMBNulLen();

 
     /**
         Convert multibyte string to a wide character one.
 
     /**
         Convert multibyte string to a wide character one.


@@ -125,8 +125,7 @@ public:
             The number of character written (or which would have been written
             if it were non-@NULL) to @a dst or @c wxCONV_FAILED on error.
     */
             The number of character written (or which would have been written
             if it were non-@NULL) to @a dst or @c wxCONV_FAILED on error.
     */

-    virtual size_t ToWChar(wchar_t* dst, size_t dstLen,
-                           const char* src,
+    virtual size_t ToWChar(wchar_t* dst, size_t dstLen, const char* src,

                            size_t srcLen = wxNO_LEN) const;
 
     /**
                            size_t srcLen = wxNO_LEN) const;
 
     /**


@@ -153,8 +152,7 @@ public:
             The number of character written (or which would have been written
             if it were non-@NULL) to @a dst or @c wxCONV_FAILED on error.
     */
             The number of character written (or which would have been written
             if it were non-@NULL) to @a dst or @c wxCONV_FAILED on error.
     */

-    virtual size_t FromWChar(char* dst, size_t dstLen,
-                             const wchar_t* src,
+    virtual size_t FromWChar(char* dst, size_t dstLen, const wchar_t* src,

                              size_t srcLen = wxNO_LEN) const;
 
     /**
                              size_t srcLen = wxNO_LEN) const;
 
     /**


@@ -176,8 +174,25 @@ public:
         compatibility concerns).
     */
     const wxWCharBuffer cMB2WC(const char* in,
         compatibility concerns).
     */
     const wxWCharBuffer cMB2WC(const char* in,

-                               size_t inLen = wxNO_LEN,
-                               size_t *outLen = NULL) const;
+                               size_t inLen,
+                               size_t *outLen) const;
+
+    /**
+        Converts a char buffer to wide char one.
+
+        This is the most convenient and safest conversion function as you
+        don't have to deal with the buffer lengths directly. Use it if the
+        input buffer is known not to be empty or if you are sure that the
+        conversion is going to succeed -- otherwise, use the overload above to
+        be able to distinguish between empty input and conversion failure.
+
+        @return
+            The buffer containing the converted text, empty if the input was
+            empty or if the conversion failed.
+
+        @since 2.9.1
+     */
+    const wxWCharBuffer cMB2WC(const wxCharBuffer& buf) const;

 
     //@{
     /**
 
     //@{
     /**


@@ -203,8 +218,25 @@ public:
         FromWChar(), please see the description of cMB2WC() for more details.
     */
     const wxCharBuffer cWC2MB(const wchar_t* in,
         FromWChar(), please see the description of cMB2WC() for more details.
     */
     const wxCharBuffer cWC2MB(const wchar_t* in,

-                              size_t inLen = wxNO_LEN,
-                              size_t *outLen = NULL) const;
+                              size_t inLen,
+                              size_t *outLen) const;
+
+    /**
+        Converts a wide char buffer to char one.
+
+        This is the most convenient and safest conversion function as you
+        don't have to deal with the buffer lengths directly. Use it if the
+        input buffer is known not to be empty or if you are sure that the
+        conversion is going to succeed -- otherwise, use the overload above to
+        be able to distinguish between empty input and conversion failure.
+
+        @return
+            The buffer containing the converted text, empty if the input was
+            empty or if the conversion failed.
+
+        @since 2.9.1
+     */
+    const wxCharBuffer cWC2MB(const wxWCharBuffer& buf) const;

 
     //@{
     /**
 
     //@{
     /**


@@ -245,7 +277,7 @@ public:
     /**
         @deprecated This function is deprecated, please use ToWChar() instead.
 
     /**
         @deprecated This function is deprecated, please use ToWChar() instead.
 

-        Converts from a string @a in in multibyte encoding to Unicode putting up to
+        Converts from a string @a in multibyte encoding to Unicode putting up to

         @a outLen characters into the buffer @e out.
 
         If @a out is @NULL, only the length of the string which would result
         @a outLen characters into the buffer @e out.
 
         If @a out is @NULL, only the length of the string which would result


@@ -255,6 +287,20 @@ public:
         out buffer, the @a outLen parameter should be one more to allow to
         properly @c NUL-terminate the string.
 
         out buffer, the @a outLen parameter should be one more to allow to
         properly @c NUL-terminate the string.
 

+        So to properly use this function you need to write:
+        @code
+            size_t lenConv = conv.MB2WC(NULL, in, 0);
+            if ( lenConv == wxCONV_FAILED )
+                ... handle error ...
+            // allocate 1 more character for the trailing NUL and also pass
+            // the size of the buffer to the function now
+            wchar_t *out = new wchar_t[lenConv + 1];
+            if ( conv.MB2WC(out, in, lenConv + 1) == wxCONV_FAILED )
+                ... handle error ...
+        @endcode
+        For this and other reasons, ToWChar() is strongly recommended as a
+        replacement.
+

         @param out
             The output buffer, may be @NULL if the caller is only
             interested in the length of the resulting string
         @param out
             The output buffer, may be @NULL if the caller is only
             interested in the length of the resulting string


@@ -277,7 +323,7 @@ public:
         called with a non-@NULL buffer, the @a n parameter should be the size
         of the buffer and so it should take into account the trailing @c NUL,
         which might take two or four bytes for some encodings (UTF-16 and
         called with a non-@NULL buffer, the @a n parameter should be the size
         of the buffer and so it should take into account the trailing @c NUL,
         which might take two or four bytes for some encodings (UTF-16 and

-        UTF-32) and not one.
+        UTF-32) and not one, i.e. GetMBNulLen().

     */
     virtual size_t WC2MB(char* buf, const wchar_t* psz, size_t n) const;
 };
     */
     virtual size_t WC2MB(char* buf, const wchar_t* psz, size_t n) const;
 };


@@ -436,33 +482,30 @@ public:
 
 
 /**
 
 
 /**

-    @class wxMBConvFile
-
-    This class used to define the class instance @b wxConvFileName, but
-    nowadays @b wxConvFileName is either of type wxConvLibc (on most platforms)
-    or wxConvUTF8 (on MacOS X).
+    Conversion object used for converting file names from their external
+    representation to the one used inside the program.

 
     @b wxConvFileName converts filenames between filesystem multibyte encoding
     and Unicode. @b wxConvFileName can also be set to a something else at
 
     @b wxConvFileName converts filenames between filesystem multibyte encoding
     and Unicode. @b wxConvFileName can also be set to a something else at

-    run-time which is used e.g. by wxGTK to use a class which checks the
+    run-time which is used e.g. by wxGTK to use an object which checks the

     environment variable @b G_FILESYSTEM_ENCODING indicating that filenames
     should not be interpreted as UTF8 and also for converting invalid UTF8
     characters (e.g. if there is a filename in iso8859_1) to strings with octal
     values.
 
     Since some platforms (such as Win32) use Unicode in the filenames,
     environment variable @b G_FILESYSTEM_ENCODING indicating that filenames
     should not be interpreted as UTF8 and also for converting invalid UTF8
     characters (e.g. if there is a filename in iso8859_1) to strings with octal
     values.
 
     Since some platforms (such as Win32) use Unicode in the filenames,

-    and others (such as Unix) use multibyte encodings, this class should only
+    and others (such as Unix) use multibyte encodings, this object should only

     be used directly if wxMBFILES is defined to 1. A convenience macro,
     @c wxFNCONV, is defined to @c wxConvFileName->cWX2MB in this case. You
     could use it like this:
 
     @code
     be used directly if wxMBFILES is defined to 1. A convenience macro,
     @c wxFNCONV, is defined to @c wxConvFileName->cWX2MB in this case. You
     could use it like this:
 
     @code

-    wxChar *name = wxT("rawfile.doc");
+    wxChar *name = "rawfile.doc";

     FILE *fil = fopen(wxFNCONV(name), "r");
     @endcode
 
     (although it would be better to just use wxFopen(name, "r") in this
     FILE *fil = fopen(wxFNCONV(name), "r");
     @endcode
 
     (although it would be better to just use wxFopen(name, "r") in this

-    particular case, you only need to use this class for functions taking file
+    particular case, you only need to use this object for functions taking file

     names not wrapped by wxWidgets.)
 
     @library{wxbase}
     names not wrapped by wxWidgets.)
 
     @library{wxbase}


@@ -470,7 +513,4 @@ public:
 
     @see @ref overview_mbconv
 */
 
     @see @ref overview_mbconv
 */

-class wxMBConvFile : public wxMBConv
-{
-public:
-};
+extern wxMBConv* wxConvFileName;