-enum MnemonicsFlag
-{
- MNEMONICS_REMOVE,
- MNEMONICS_CONVERT,
- MNEMONICS_CONVERT_MARKUP
-};
-
-static wxString GTKProcessMnemonics(const wxString& label, MnemonicsFlag flag)
-{
- wxString labelGTK;
- labelGTK.reserve(label.length());
- for ( wxString::const_iterator i = label.begin(); i != label.end(); ++i )
- {
- wxChar ch = *i;
-
- switch ( ch )
- {
- case wxT('&'):
- if ( i + 1 == label.end() )
- {
- // "&" at the end of string is an error
- wxLogDebug(wxT("Invalid label \"%s\"."), label);
- break;
- }
-
- if ( flag == MNEMONICS_CONVERT_MARKUP )
- {
- bool isMnemonic = true;
- size_t distanceFromEnd = label.end() - i;
-
- // is this ampersand introducing a mnemonic or rather an entity?
- for (size_t j=0; j < wxMARKUP_ENTITY_MAX; j++)
- {
- const wxChar *entity = wxMarkupEntities[wxMARKUP_ELEMENT_NAME][j];
- size_t entityLen = wxStrlen(entity);
-
- if (distanceFromEnd >= entityLen &&
- wxString(i, i + entityLen) == entity)
- {
- labelGTK << entity;
- i += entityLen - 1; // the -1 is because main for()
- // loop already increments i
- isMnemonic = false;
-
- break;
- }
- }
-
- if (!isMnemonic)
- continue;
- }
-
- ch = *(++i); // skip '&' itself
- switch ( ch )
- {
- case wxT('&'):
- // special case: "&&" is not a mnemonic at all but just
- // an escaped "&"
- if ( flag == MNEMONICS_CONVERT_MARKUP )
- labelGTK += wxT("&");
- else
- labelGTK += wxT('&');
- break;
-
- case wxT('_'):
- if ( flag != MNEMONICS_REMOVE )
- {
- // '_' can't be a GTK mnemonic apparently so
- // replace it with something similar
- labelGTK += wxT("_-");
- break;
- }
- //else: fall through
-
- default:
- if ( flag != MNEMONICS_REMOVE )
- labelGTK += wxT('_');
- labelGTK += ch;
- }
- break;
-
- case wxT('_'):
- if ( flag != MNEMONICS_REMOVE )
- {
- // escape any existing underlines in the string so that
- // they don't become mnemonics accidentally
- labelGTK += wxT("__");
- break;
- }
- //else: fall through
-
- default:
- labelGTK += ch;
- }
- }
-
- return labelGTK;
-}
-