ut_Win32LocaleString.h

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/* AbiWord
 * Copyright (C) 1998 AbiSource, Inc.
 *
 * 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; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#ifndef UT_WIN32LOCALESTRING_H
#define UT_WIN32LOCALESTRING_H

#include "ut_string_class.h"
#include <windows.h>
#include <wchar.h>



class UT_UCS2Stringbuf
{
public:
    typedef UT_UCS2Char char_type;

    UT_UCS2Stringbuf();
    UT_UCS2Stringbuf(const UT_UCS2Stringbuf& rhs);
    UT_UCS2Stringbuf(const char_type* sz, size_t n);
    ~UT_UCS2Stringbuf();

    void        operator=(const UT_UCS2Stringbuf& rhs);

    void        assign(const char_type* sz, size_t n);
    void        append(const char_type* sz, size_t n);
    void        append(const UT_UCS2Stringbuf& rhs);

    void        clear();

    bool                empty()     const { return m_psz == m_pEnd; }
    size_t              size()      const { return m_pEnd - m_psz; }
    size_t              capacity()  const { return m_size; }
    const char_type*    data()      const { return m_psz; }
    char_type*          data()            { return m_psz; }

private:
    void    grow_nocopy(size_t n);
    void    grow_copy(size_t n);
    void    grow_common(size_t n, bool bCopy);

    static void copy(char_type* pDest, const char_type* pSrc, size_t n);

    char_type*  m_psz;
    char_type*  m_pEnd;
    size_t      m_size;
};


class ABI_EXPORT UT_UCS2String
{
public:
    UT_UCS2String();
    UT_UCS2String(const UT_UCS2Char * sz, size_t n = 0 /* 0 == zero-terminate */);
    UT_UCS2String(const UT_UCS2String& rhs);
    ~UT_UCS2String();

    size_t      size() const;
    bool        empty() const;
    void        clear() const;
    size_t      length() { return size(); }

    UT_UCS2String   substr(size_t iStart, size_t nChars) const;

    UT_UCS2String&  operator=(const UT_UCS2String&  rhs);
    UT_UCS2String&  operator=(const UT_UCS2Char *    rhs);

    // The returned pointer is valid until the next non-const
    // operation. You will _always_ get a legal pointer back,
    // even if to an empty (0) string.
    const UT_UCS2Char* ucs2_str() const;

protected:
    class UT_UCS2Stringbuf* pimpl;
};


class ABI_EXPORT UT_Win32LocaleString : public UT_UCS2String
{
public:

    UT_Win32LocaleString ();

    void fromUCS2 (const UT_UCS2Char * szIn);
    void fromUCS4 (const UT_UCS4Char * szIn);
    void fromUTF8 (const char* szUTF8);
    void fromASCII (const char* szASCII, size_t size = -1);
    void fromLocale (const wchar_t* szLocale);

    void appendASCII (const char* szASCII);
    void appendLocale (const wchar_t* szLocale);
    const wchar_t * c_str() const;
    UT_UTF8String utf8_str() const;
    UT_UCS4String ucs4_str() const;
    UT_Win32LocaleString substr(size_t iStart, size_t nChars) const;

    wchar_t operator[](size_t iPos) const
    {
        UT_ASSERT(iPos <= size());
        if (iPos == size())
            return L'\0';
        return (wchar_t) pimpl->data()[iPos];
    }

    wchar_t& operator[](size_t iPos)
    {
        UT_ASSERT(iPos <= size());
        return (wchar_t &) pimpl->data()[iPos];
    }
};

bool operator==(const UT_Win32LocaleString& s1, const wchar_t* s2);

#endif /* UT_WIN32LOCALESTRING_H */