Clementine-audio-player-Mac.../3rdparty/taglib/toolkit/tiostream.cpp

151 lines
4.2 KiB
C++

/***************************************************************************
copyright : (C) 2011 by Lukas Lalinsky
email : lalinsky@gmail.com
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* This library 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA *
* 02110-1301 USA *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#include "tiostream.h"
using namespace TagLib;
#ifdef _WIN32
# include "tstring.h"
# include "tdebug.h"
# include <windows.h>
namespace
{
// Check if the running system has CreateFileW() function.
// Windows9x systems don't have CreateFileW() or can't accept Unicode file names.
bool supportsUnicode()
{
const FARPROC p = GetProcAddress(GetModuleHandleA("kernel32"), "CreateFileW");
return (p != NULL);
}
// Indicates whether the system supports Unicode file names.
const bool SystemSupportsUnicode = supportsUnicode();
// Converts a UTF-16 string into a local encoding.
// This function should only be used in Windows9x systems which don't support
// Unicode file names.
std::string unicodeToAnsi(const wchar_t *wstr)
{
if(SystemSupportsUnicode) {
debug("unicodeToAnsi() - Should not be used on WinNT systems.");
}
const int len = WideCharToMultiByte(CP_ACP, 0, wstr, -1, NULL, 0, NULL, NULL);
if(len == 0)
return std::string();
std::string str(len, '\0');
WideCharToMultiByte(CP_ACP, 0, wstr, -1, &str[0], len, NULL, NULL);
return str;
}
}
// If WinNT, stores a Unicode string into m_wname directly.
// If Win9x, converts and stores it into m_name to avoid calling Unicode version functions.
FileName::FileName(const wchar_t *name)
: m_name (SystemSupportsUnicode ? "" : unicodeToAnsi(name))
, m_wname(SystemSupportsUnicode ? name : L"")
{
}
FileName::FileName(const char *name)
: m_name(name)
{
}
FileName::FileName(const FileName &name)
: m_name (name.m_name)
, m_wname(name.m_wname)
{
}
FileName::operator const wchar_t *() const
{
return m_wname.c_str();
}
FileName::operator const char *() const
{
return m_name.c_str();
}
const std::wstring &FileName::wstr() const
{
return m_wname;
}
const std::string &FileName::str() const
{
return m_name;
}
String FileName::toString() const
{
if(!m_wname.empty()) {
return String(m_wname);
}
else if(!m_name.empty()) {
const int len = MultiByteToWideChar(CP_ACP, 0, m_name.c_str(), -1, NULL, 0);
if(len == 0)
return String::null;
std::vector<wchar_t> buf(len);
MultiByteToWideChar(CP_ACP, 0, m_name.c_str(), -1, &buf[0], len);
return String(&buf[0]);
}
else {
return String::null;
}
}
#endif // _WIN32
////////////////////////////////////////////////////////////////////////////////
// public members
////////////////////////////////////////////////////////////////////////////////
IOStream::IOStream()
{
}
IOStream::~IOStream()
{
}
void IOStream::clear()
{
}