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

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

diff --git a/include/wx/encconv.h b/include/wx/encconv.h
index 05dbfeaf409b3134f02d904ab261a7418234f890..4639f486388a2e226d0823378c513cd1449b6041 100644 (file)
--- a/include/wx/encconv.h
+++ b/include/wx/encconv.h
@@ -1,42 +1,47 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        encconv.h
+// Name:        wx/encconv.h

 // Purpose:     wxEncodingConverter class for converting between different
 //              font encodings
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
 // Purpose:     wxEncodingConverter class for converting between different
 //              font encodings
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik

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

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifndef __ENCCONV_H__
-#define __ENCCONV_H__
-
-#ifdef __GNUG__
-#pragma interface "encconv.h"
-#endif
+#ifndef _WX_ENCCONV_H_
+#define _WX_ENCCONV_H_

 
 #include "wx/defs.h"
 
 #include "wx/defs.h"

-#include "wx/font.h"
-#include "wx/dynarray.h"

 
 

+#include "wx/object.h"
+#include "wx/fontenc.h"
+#include "wx/dynarray.h"

 
 

+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------

 
 

-enum {
+enum
+{

     wxCONVERT_STRICT,
     wxCONVERT_SUBSTITUTE
 };
 
 
     wxCONVERT_STRICT,
     wxCONVERT_SUBSTITUTE
 };
 
 

-enum {
+enum
+{

     wxPLATFORM_CURRENT = -1,
     wxPLATFORM_CURRENT = -1,

-    
+

     wxPLATFORM_UNIX = 0,
     wxPLATFORM_WINDOWS,
     wxPLATFORM_OS2,
     wxPLATFORM_UNIX = 0,
     wxPLATFORM_WINDOWS,
     wxPLATFORM_OS2,

-    wxPLATFORM_MAC,
+    wxPLATFORM_MAC

 };
 
 };
 

-WX_DEFINE_ARRAY(wxFontEncoding, wxFontEncodingArray);
+// ----------------------------------------------------------------------------
+// types
+// ----------------------------------------------------------------------------

 
 

+WX_DEFINE_ARRAY_INT(wxFontEncoding, wxFontEncodingArray);

 
 //--------------------------------------------------------------------------------
 // wxEncodingConverter
 
 //--------------------------------------------------------------------------------
 // wxEncodingConverter


@@ -44,54 +49,54 @@ WX_DEFINE_ARRAY(wxFontEncoding, wxFontEncodingArray);
 //                  8bit encodings/charsets. It can also convert from/to Unicode
 //--------------------------------------------------------------------------------
 
 //                  8bit encodings/charsets. It can also convert from/to Unicode
 //--------------------------------------------------------------------------------
 

-class WXDLLEXPORT wxEncodingConverter : public wxObject
+class WXDLLIMPEXP_BASE wxEncodingConverter : public wxObject

 {
     public:
 {
     public:

-    
+

             wxEncodingConverter();
             ~wxEncodingConverter() { if (m_Table) delete[] m_Table; }
             wxEncodingConverter();
             ~wxEncodingConverter() { if (m_Table) delete[] m_Table; }

-    
-            // Initialize convertion. Both output or input encoding may
-            // be wxFONTENCODING_UNICODE, but only if wxUSE_UNICODE is set to 1.
+
+            // Initialize conversion. Both output or input encoding may
+            // be wxFONTENCODING_UNICODE, but only if wxUSE_WCHAR_T is set to 1.

             //
             // All subsequent calls to Convert() will interpret it's argument
             // as a string in input_enc encoding and will output string in
             // output_enc encoding.
             //
             //
             // All subsequent calls to Convert() will interpret it's argument
             // as a string in input_enc encoding and will output string in
             // output_enc encoding.
             //

-            // You must call this method before calling Convert. You may call 
+            // You must call this method before calling Convert. You may call

             // it more than once in order to switch to another conversion
             //
             // Method affects behaviour of Convert() in case input character
             // cannot be converted because it does not exist in output encoding:
             // it more than once in order to switch to another conversion
             //
             // Method affects behaviour of Convert() in case input character
             // cannot be converted because it does not exist in output encoding:

-            //     wxCONVERT_STRICT -- 
-            //              follow behaviour of GNU Recode - just copy unconvertable 
-            //              characters to output and don't change them (it's integer 
+            //     wxCONVERT_STRICT --
+            //              follow behaviour of GNU Recode - just copy unconvertable
+            //              characters to output and don't change them (it's integer

             //              value will stay the same)
             //     wxCONVERT_SUBSTITUTE --
             //              value will stay the same)
             //     wxCONVERT_SUBSTITUTE --

-            //              try some (lossy) substitutions - e.g. replace 
+            //              try some (lossy) substitutions - e.g. replace

             //              unconvertable latin capitals with acute by ordinary
             //              capitals, replace en-dash or em-dash by '-' etc.
             //     both modes gurantee that output string will have same length
             //     as input string
             //
             //              unconvertable latin capitals with acute by ordinary
             //              capitals, replace en-dash or em-dash by '-' etc.
             //     both modes gurantee that output string will have same length
             //     as input string
             //

-            // Returns FALSE if given conversion is impossible, TRUE otherwise
+            // Returns false if given conversion is impossible, true otherwise

             // (conversion may be impossible either if you try to convert
             // (conversion may be impossible either if you try to convert

-            // to Unicode with non-Unicode build of wxWindows or if input
+            // to Unicode with non-Unicode build of wxWidgets or if input

             // or output encoding is not supported.)
             bool Init(wxFontEncoding input_enc, wxFontEncoding output_enc, int method = wxCONVERT_STRICT);
             // or output encoding is not supported.)
             bool Init(wxFontEncoding input_enc, wxFontEncoding output_enc, int method = wxCONVERT_STRICT);

-            
+

             // Convert input string according to settings passed to Init.
             // Note that you must call Init before using Convert!
             // Convert input string according to settings passed to Init.
             // Note that you must call Init before using Convert!

-            void Convert(const wxChar* input, wxChar* output);
-            void Convert(wxChar* str) { Convert(str, str); }
-            wxString Convert(const wxString& input);
-
-#if wxUSE_UNICODE // otherwise wxChar === char
-            void Convert(const char* input, wxChar* output);
-            void Convert(const wxChar* input, char* output);
-            void Convert(const char* input, char* output);
-            void Convert(char* str) { Convert(str, str); }
-#endif        
+            bool Convert(const char* input, char* output) const;
+            bool Convert(char* str) const { return Convert(str, str); }
+            wxString Convert(const wxString& input) const;
+
+#if wxUSE_WCHAR_T
+            bool Convert(const char* input, wchar_t* output) const;
+            bool Convert(const wchar_t* input, char* output) const;
+            bool Convert(const wchar_t* input, wchar_t* output) const;
+            bool Convert(wchar_t* str) const { return Convert(str, str); }
+#endif

             // Return equivalent(s) for given font that are used
             // under given platform. wxPLATFORM_CURRENT means the plaform
             // this binary was compiled for
             // Return equivalent(s) for given font that are used
             // under given platform. wxPLATFORM_CURRENT means the plaform
             // this binary was compiled for


@@ -109,8 +114,8 @@ class WXDLLEXPORT wxEncodingConverter : public wxObject
             // that you loose special chars like quotation marks or em-dashes
             // but you shouldn't loose any diacritics and language-specific
             // characters when converting between equivalent encodings).
             // that you loose special chars like quotation marks or em-dashes
             // but you shouldn't loose any diacritics and language-specific
             // characters when converting between equivalent encodings).

-            // 
-            // Convert() method is not limited to converting between 
+            //
+            // Convert() method is not limited to converting between

             // equivalent encodings, it can convert between arbitrary
             // two encodings!
             //
             // equivalent encodings, it can convert between arbitrary
             // two encodings!
             //


@@ -123,34 +128,32 @@ class WXDLLEXPORT wxEncodingConverter : public wxObject
             // encoding is native for this platform or not)
             static wxFontEncodingArray GetPlatformEquivalents(wxFontEncoding enc, int platform = wxPLATFORM_CURRENT);
 
             // encoding is native for this platform or not)
             static wxFontEncodingArray GetPlatformEquivalents(wxFontEncoding enc, int platform = wxPLATFORM_CURRENT);
 

-            // Similar to GetPlatformEquivalent, but this one will return ALL 
+            // Similar to GetPlatformEquivalent, but this one will return ALL

             // equivalent encodings, regardless the platform, including itself.
             static wxFontEncodingArray GetAllEquivalents(wxFontEncoding enc);
 
             // equivalent encodings, regardless the platform, including itself.
             static wxFontEncodingArray GetAllEquivalents(wxFontEncoding enc);
 

+            // Return true if [any text in] one multibyte encoding can be
+            // converted to another one losslessly.
+            //
+            // Do not call this with wxFONTENCODING_UNICODE, it doesn't make
+            // sense (always works in one sense and always depends on the text
+            // to convert in the other)
+            static bool CanConvert(wxFontEncoding encIn, wxFontEncoding encOut)
+            {
+                return GetAllEquivalents(encIn).Index(encOut) != wxNOT_FOUND;
+            }
+

     private:
     private:

-    
-            wxChar *m_Table;
+
+#if wxUSE_WCHAR_T
+            wchar_t *m_Table;
+#else
+            char *m_Table;
+#endif

             bool m_UnicodeInput, m_UnicodeOutput;
             bool m_JustCopy;
             bool m_UnicodeInput, m_UnicodeOutput;
             bool m_JustCopy;

-            
-};
-
-
-#endif  // __ENCCONV_H__
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

 
 

+    DECLARE_NO_COPY_CLASS(wxEncodingConverter)
+};

 
 

+#endif  // _WX_ENCCONV_H_