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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.0 (2010/01/01)
#include "Wm5CorePCH.h"
#include "Wm5Environment.h"
#include "Wm5Memory.h"
using namespace Wm5;
WM5_IMPLEMENT_INITIALIZE(Environment);
WM5_IMPLEMENT_TERMINATE(Environment);
std::vector<std::string>* Environment::msDirectories = 0;
//----------------------------------------------------------------------------
// Initialization/termination support.
//----------------------------------------------------------------------------
void Environment::Initialize ()
{
if (!msDirectories)
{
msDirectories = new0 std::vector<std::string>();
return;
}
assertion(false, "Directory list already allocated.\n");
}
//----------------------------------------------------------------------------
void Environment::Terminate ()
{
if (msDirectories)
{
delete0(msDirectories);
return;
}
assertion(false, "No directory list to deallocate.\n");
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
std::string Environment::GetVariable (const std::string& varName)
{
const char* variable = getenv(varName.c_str());
return variable ? std::string(variable) : std::string("");
}
//----------------------------------------------------------------------------
int Environment::GetNumDirectories ()
{
if (!msDirectories)
{
Initialize();
}
return (int)msDirectories->size();
}
//----------------------------------------------------------------------------
std::string Environment::GetDirectory (int i)
{
if (!msDirectories)
{
Initialize();
}
if (0 <= i && i < (int)msDirectories->size())
{
return (*msDirectories)[i];
}
return std::string("");
}
//----------------------------------------------------------------------------
bool Environment::InsertDirectory (const std::string& directory)
{
if (!msDirectories)
{
Initialize();
}
std::vector<std::string>::iterator iter = msDirectories->begin();
std::vector<std::string>::iterator end = msDirectories->end();
for (/**/; iter != end; ++iter)
{
if (directory == *iter)
{
return false;
}
}
msDirectories->push_back(directory);
return true;
}
//----------------------------------------------------------------------------
bool Environment::RemoveDirectory (const std::string& directory)
{
if (!msDirectories)
{
Initialize();
}
std::vector<std::string>::iterator iter = msDirectories->begin();
std::vector<std::string>::iterator end = msDirectories->end();
for (/**/; iter != end; ++iter)
{
if (directory == *iter)
{
msDirectories->erase(iter);
return true;
}
}
return false;
}
//----------------------------------------------------------------------------
void Environment::RemoveAllDirectories ()
{
if (!msDirectories)
{
Initialize();
}
msDirectories->clear();
}
//----------------------------------------------------------------------------
std::string Environment::GetPathR (const std::string& fileName)
{
return GetPath(fileName, "r");
}
//----------------------------------------------------------------------------
std::string Environment::GetPathW (const std::string& fileName)
{
return GetPath(fileName, "w");
}
//----------------------------------------------------------------------------
std::string Environment::GetPathRW (const std::string& fileName)
{
return GetPath(fileName, "r+");
}
//----------------------------------------------------------------------------
std::string Environment::GetPath (const std::string& fileName,
const char* attributes)
{
if (!msDirectories)
{
Initialize();
}
std::vector<std::string>::iterator iter = msDirectories->begin();
std::vector<std::string>::iterator end = msDirectories->end();
for (/**/; iter != end; ++iter)
{
std::string decorated = *iter + fileName;
FILE* testFile = fopen(decorated.c_str(), attributes);
if (testFile)
{
fclose(testFile);
return decorated;
}
}
return std::string("");
}
//----------------------------------------------------------------------------
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