nestopia/source/win32/NstApplicationLanguage.cpp

130 lines
3.2 KiB
C++

////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia 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.
//
// Nestopia 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 Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#include "NstApplicationException.hpp"
#include "NstApplicationLanguage.hpp"
namespace Nestopia
{
namespace Application
{
bool Instance::Language::Resource::Load(wcstring const p)
{
if (!Dll::Load( p ))
return false;
path = p;
return true;
}
void Instance::Language::Load(const Configuration& cfg)
{
if (!resource)
Load( cfg["language"]["file"].Str().Ptr() );
}
void Instance::Language::Save(Configuration& cfg) const
{
if (resource.path.Length())
cfg["language"]["file"].Str() = resource.path;
}
void Instance::Language::Load(wcstring const path)
{
if (!path || !*path)
{
Paths paths;
EnumerateResources( paths );
if (paths.empty())
throw Exception( L"language\\english.nlg file not found!" );
Paths::const_iterator it( paths.begin() );
for (Paths::const_iterator end(paths.end()); it != end; ++it)
{
if (it->File() == L"english.nlg")
break;
}
if (it == paths.end())
it = paths.begin();
if (!resource.Load( it->Ptr() ))
throw Exception( L"Failed to load language plugin file!" );
}
else if (!resource.Load( path ))
{
Load( NULL );
}
}
void Instance::Language::UpdateResource(wcstring const update)
{
NST_ASSERT( update );
resource.path = update;
}
void Instance::Language::EnumerateResources(Paths& paths) const
{
for (uint i=0; i < 2 && paths.empty(); ++i)
{
struct FileFinder
{
WIN32_FIND_DATA data;
HANDLE const handle;
FileFinder(wcstring const path)
: handle(::FindFirstFile( path, &data )) {}
~FileFinder()
{
if (handle != INVALID_HANDLE_VALUE)
::FindClose( handle );
}
};
Path path( Instance::GetExePath(i ? L"*.*" : L"language\\*.*") );
FileFinder findFile( path.Ptr() );
if (findFile.handle != INVALID_HANDLE_VALUE)
{
do
{
if (!(findFile.data.dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM|FILE_ATTRIBUTE_DIRECTORY)))
{
path.File() = findFile.data.cFileName;
if (path.Extension() == L"nlg")
paths.push_back( path );
}
}
while (::FindNextFile( findFile.handle, &findFile.data ));
}
}
}
}
}