// font encodings
// Author: Vaclav Slavik
// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWindows Licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_ENCCONV_H_
#define _WX_ENCCONV_H_
-#if defined(__GNUG__) && !defined(__APPLE__)
-#pragma interface "encconv.h"
-#endif
-
#include "wx/defs.h"
-#if wxUSE_FONTMAP
-
#include "wx/object.h"
#include "wx/fontenc.h"
#include "wx/dynarray.h"
// 8bit encodings/charsets. It can also convert from/to Unicode
//--------------------------------------------------------------------------------
-class WXDLLEXPORT wxEncodingConverter : public wxObject
+class WXDLLIMPEXP_BASE wxEncodingConverter : public wxObject
{
public:
wxEncodingConverter();
- ~wxEncodingConverter() { if (m_Table) delete[] m_Table; }
+ virtual ~wxEncodingConverter() { if (m_Table) delete[] m_Table; }
// Initialize conversion. Both output or input encoding may
- // be wxFONTENCODING_UNICODE, but only if wxUSE_WCHAR_T is set to 1.
+ // be wxFONTENCODING_UNICODE.
//
// All subsequent calls to Convert() will interpret it's argument
// as a string in input_enc encoding and will output string in
// 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
+ // both modes guarantee 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
- // 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);
// Convert input string according to settings passed to Init.
// Note that you must call Init before using Convert!
- void Convert(const char* input, char* output);
- void Convert(char* str) { Convert(str, str); }
- wxString Convert(const wxString& input);
-
-#if wxUSE_WCHAR_T
- void Convert(const char* input, wchar_t* output);
- void Convert(const wchar_t* input, char* output);
- void Convert(const wchar_t* input, wchar_t* output);
- void Convert(wchar_t* 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;
+
+ 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); }
+
// Return equivalent(s) for given font that are used
// under given platform. wxPLATFORM_CURRENT means the plaform
// this binary was compiled for
//
// Equivalence is defined in terms of convertibility:
// 2 encodings are equivalent if you can convert text between
- // then without loosing information (it may - and will - happen
- // that you loose special chars like quotation marks or em-dashes
- // but you shouldn't loose any diacritics and language-specific
+ // then without losing information (it may - and will - happen
+ // that you lose special chars like quotation marks or em-dashes
+ // but you shouldn't lose any diacritics and language-specific
// characters when converting between equivalent encodings).
//
// Convert() method is not limited to converting between
// equivalent encodings, regardless the platform, including itself.
static wxFontEncodingArray GetAllEquivalents(wxFontEncoding enc);
- private:
+ // 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;
+ }
-#if wxUSE_WCHAR_T
+ private:
wchar_t *m_Table;
-#else
- char *m_Table;
-#endif
bool m_UnicodeInput, m_UnicodeOutput;
bool m_JustCopy;
+ wxDECLARE_NO_COPY_CLASS(wxEncodingConverter);
};
-#endif // wxUSE_FONTMAP
-
#endif // _WX_ENCCONV_H_