Cleaner fix.

[wxWidgets.git] / src / common / strconv.cpp

diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp
index ffd70ff003486f58d92bc24f32c0aae231bfd19f..ea5e74110f648a6aed805f74228087d5744c9cc2 100644 (file)
--- a/src/common/strconv.cpp
+++ b/src/common/strconv.cpp
@@ -69,6 +69,13 @@
 #include "wx/encconv.h"
 #include "wx/fontmap.h"
 
+#ifdef __WXMAC__
+#include "ATSUnicode.h"
+#include "TextCommon.h"
+#include "TextEncodingConverter.h"
+
+#include  "wx/mac/private.h"  // includes mac headers
+#endif
 // ----------------------------------------------------------------------------
 // macros
 // ----------------------------------------------------------------------------
@@ -1171,6 +1178,122 @@ public:
 
 #endif // wxHAVE_WIN32_MB2WC
 
+// ============================================================================
+// Mac conversion classes
+// ============================================================================
+
+#if defined(__WXMAC__) && defined(TARGET_CARBON)
+
+class wxMBConv_mac : public wxMBConv
+{
+public:
+    wxMBConv_mac()
+    {
+        Init(CFStringGetSystemEncoding()) ;
+    }
+
+    wxMBConv_mac(const wxChar* name)
+    {
+       Init( wxMacGetSystemEncFromFontEnc(wxFontMapper::Get()->CharsetToEncoding(name, FALSE) ) ) ;
+    }
+
+    wxMBConv_mac(wxFontEncoding encoding)
+    {
+       Init( wxMacGetSystemEncFromFontEnc(encoding) );
+    }
+    
+       ~wxMBConv_mac()
+       {
+           OSStatus status = noErr ;
+           status = TECDisposeConverter(m_MB2WC_converter);
+           status = TECDisposeConverter(m_WC2MB_converter);            
+       }
+       
+    
+       void Init( TextEncodingBase encoding)
+       {
+           OSStatus status = noErr ;
+               m_char_encoding = encoding ;
+#if SIZEOF_WCHAR_T == 4
+               m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode32BitFormat) ;
+#else
+               m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ;
+#endif         
+           status = TECCreateConverter(&m_MB2WC_converter,
+                                       m_char_encoding,
+                                       m_unicode_encoding);
+           status = TECCreateConverter(&m_WC2MB_converter,
+                                       m_unicode_encoding,
+                                       m_char_encoding);
+       }
+       
+    size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const
+    {
+           OSStatus status = noErr ;
+           ByteCount byteOutLen ;
+           ByteCount byteInLen = strlen(psz) ;
+           ByteCount byteBufferLen = n ; 
+               wchar_t *tbuf = NULL ;
+               
+               if (buf == NULL)
+               {
+                       n = byteInLen * SIZEOF_WCHAR_T ;
+                       tbuf = (wchar_t*) malloc( n ) ;
+               }
+       
+           status = TECConvertText(m_MB2WC_converter, (ConstTextPtr) psz , byteInLen, &byteInLen,
+             (TextPtr) (buf ? buf : tbuf) , byteBufferLen, &byteOutLen);
+
+               if ( buf == NULL )
+                       free(tbuf) ;
+
+               size_t res = byteOutLen / SIZEOF_WCHAR_T ;
+        if ( buf  && res < n)
+            buf[res] = 0;
+
+               return res ;
+    }
+
+    size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const
+    {          
+           OSStatus status = noErr ;
+           ByteCount byteOutLen ;
+           ByteCount byteInLen = wxWcslen(psz) * SIZEOF_WCHAR_T ;
+           ByteCount byteBufferLen = n ;
+
+               char *tbuf = NULL ;
+               
+               if (buf == NULL)
+               {
+                       n = byteInLen ;
+                       tbuf = (char*) malloc( n ) ;
+               }
+
+           status = TECConvertText(m_WC2MB_converter, (ConstTextPtr) psz , byteInLen, &byteInLen,
+              (TextPtr) ( buf ? buf : tbuf ) , byteBufferLen, &byteOutLen);
+
+               if ( buf == NULL )
+                       free(tbuf) ;
+
+               size_t res = byteOutLen ;
+        if ( buf  && res < n)
+            buf[res] = 0;
+
+               return res ;
+    }
+
+    bool IsOk() const
+        { return m_MB2WC_converter !=  NULL && m_WC2MB_converter != NULL  ; }
+
+private:
+       TECObjectRef m_MB2WC_converter ;
+       TECObjectRef m_WC2MB_converter ;
+       
+       TextEncodingBase m_char_encoding ;
+       TextEncodingBase m_unicode_encoding ;
+};
+
+#endif // defined(__WXMAC__) && defined(TARGET_CARBON)
 
 // ============================================================================
 // wxEncodingConverter based conversion classes
@@ -1367,7 +1490,20 @@ wxMBConv *wxCSConv::DoCreate() const
         delete conv;
     }
 #endif // wxHAVE_WIN32_MB2WC
-
+#if defined(__WXMAC__) 
+    {
+       if ( m_name || ( m_encoding < wxFONTENCODING_UTF16BE ) )
+       {
+                       
+               wxMBConv_mac *conv = m_name ? new wxMBConv_mac(m_name)
+                                           : new wxMBConv_mac(m_encoding);
+               if ( conv->IsOk() )
+                   return conv;
+
+               delete conv;
+       }
+    }
+#endif
     // step (2)
     wxFontEncoding enc = m_encoding;
 #if wxUSE_FONTMAP
@@ -1417,8 +1553,19 @@ wxMBConv *wxCSConv::DoCreate() const
     }
 #endif // wxUSE_FONTMAP
 
-    wxLogError(_("Cannot convert from the charset '%s'!"),
-               m_name ? m_name
+    // NB: This is a hack to prevent deadlock. What could otherwise happen
+    //     in Unicode build: wxConvLocal creation ends up being here
+    //     because of some failure and logs the error. But wxLog will try to
+    //     attach timestamp, for which it will need wxConvLocal (to convert
+    //     time to char* and then wchar_t*), but that fails, tries to log
+    //     error, but wxLog has a (already locked) critical section that
+    //     guards static buffer.
+    static bool alreadyLoggingError = false;
+    if (!alreadyLoggingError)
+    {
+        alreadyLoggingError = true;
+        wxLogError(_("Cannot convert from the charset '%s'!"),
+                   m_name ? m_name
                       :
 #if wxUSE_FONTMAP
                          wxFontMapper::GetEncodingDescription(m_encoding).c_str()
@@ -1426,6 +1573,8 @@ wxMBConv *wxCSConv::DoCreate() const
                          wxString::Format(_("encoding %s"), m_encoding).c_str()
 #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
               );
+        alreadyLoggingError = false;
+    }
 
     return NULL;
 }
@@ -1441,7 +1590,7 @@ void wxCSConv::CreateConvIfNeeded() const
         // encoding for this system
         if ( !m_name && m_encoding == wxFONTENCODING_SYSTEM )
         {
-            self->m_encoding = wxLocale::GetSystemEncoding();
+            self->m_name = wxStrdup(wxLocale::GetSystemEncodingName());
         }
 #endif // wxUSE_INTL