mpd/src/fs/NarrowPath.hxx

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/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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 MPD_FS_NARROW_PATH_HXX
#define MPD_FS_NARROW_PATH_HXX
#include "check.h"
#include "Path.hxx"
#include "util/Macros.hxx"
#ifdef _UNICODE
#include "lib/icu/Win32.hxx"
#include "util/AllocatedString.hxx"
#include <windows.h>
#else
#include "util/StringPointer.hxx"
#endif
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/**
* A path name that uses the regular (narrow) "char". This is used to
* pass a #Path (which may be represented by wchar_t) to a library
* that accepts only "const char *".
*/
class NarrowPath {
#ifdef _UNICODE
typedef AllocatedString<> Value;
#else
typedef StringPointer<> Value;
#endif
typedef typename Value::const_pointer const_pointer;
Value value;
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public:
#ifdef _UNICODE
explicit NarrowPath(Path _path)
:value(WideCharToMultiByte(CP_ACP, _path.c_str())) {
if (value.IsNull())
/* fall back to empty string */
value = Value::Empty();
}
#else
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explicit NarrowPath(Path _path):value(_path.c_str()) {}
#endif
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operator const_pointer() const {
return c_str();
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}
const_pointer c_str() const {
return value.c_str();
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}
};
#endif