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Diffstat (limited to 'include/stringmgr.h')
-rw-r--r-- | include/stringmgr.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/include/stringmgr.h b/include/stringmgr.h new file mode 100644 index 0000000..fe2eb5e --- /dev/null +++ b/include/stringmgr.h @@ -0,0 +1,120 @@ +/****************************************************************************** + * stringmgr.h - A class which provides string handling functions which can + * be reimplemented by frontends + * + * $Id: stringmgr.h 2098 2007-10-07 18:57:07Z scribe $ + * + * Copyright 2005 CrossWire Bible Society (http://www.crosswire.org) + * CrossWire Bible Society + * P. O. Box 2528 + * Tempe, AZ 85280-2528 + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation version 2. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + */ + + +#ifndef STRINGMGR_H +#define STRINGMGR_H + +#include <defs.h> +#include <swbuf.h> +#include <utilstr.h> + +SWORD_NAMESPACE_START + +/** StringMgr is a way to provide UTf8 handling by the Sword frontend + * Each platform, if it's up-to-date, should provide functions to handle unicode and utf8. This class makes it possible to implement Unicode support on the user-side and not in Sword itself. + */ +class SWDLLEXPORT StringMgr { +public: + + /** Sets the global StringMgr handle + * @param newStringMgr The new global StringMgr. This pointer will be deleted by this StringMgr + */ + static void setSystemStringMgr(StringMgr *newStringMgr); + + /** Returns the global StringMgr handle + * @return The global string handle + */ + static StringMgr *getSystemStringMgr(); + + /** Checks whether Utf8 support is available. + * Override the function supportsUnicode() to tell whether your implementation has utf8 support. + * @return True if this implementation provides support for Utf8 handling or false if just latin1 handling is available + */ + static inline bool hasUTF8Support() { + return getSystemStringMgr()->supportsUnicode(); + }; + + /** Converts the param to an upper case Utf8 string + * @param text The text encoded in utf8 which should be turned into an upper case string + * @param max Max buffer size + * @return text buffer (only for convenience) + */ + virtual char *upperUTF8(char *text, unsigned int max = 0) const; + + /** Converts the param to an uppercase latin1 string + * @param text The text encoded in latin1 which should be turned into an upper case string + * @param max Max buffer size + * @return text buffer (only for convenience) + */ + virtual char *upperLatin1(char *text, unsigned int max = 0) const; + + +protected: + friend class __staticsystemStringMgr; + + /** Default constructor. Protected to make instances on user side impossible, because this is a Singleton + */ + StringMgr(); + + /** Copy constructor + */ + StringMgr(const StringMgr &); + + /** Destructor + */ + virtual ~StringMgr(); + + virtual bool supportsUnicode() const; + +private: + static StringMgr *systemStringMgr; +}; + +inline char *toupperstr(char *t, unsigned int max = 0) { + return StringMgr::getSystemStringMgr()->upperUTF8(t, max); +} + +inline char *toupperstr_utf8(char *t, unsigned int max = 0) { + return StringMgr::getSystemStringMgr()->upperUTF8(t, max); +} + +/** + * Converts an SWBuf filled with UTF-8 to upper case + * + * @param b SWBuf to change to upper case + * + * @return b for convenience + */ +inline SWBuf &toupperstr(SWBuf &b) { + char *utf8 = 0; + stdstr(&utf8, b.c_str(), 2); + toupperstr(utf8, strlen(utf8)*2); + b = utf8; + delete [] utf8; + return b; +} + +SWORD_NAMESPACE_END + + +#endif //STRINGMGR_H |