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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
*/
#include "Core/precomp.h"
#ifdef WIN32
#include <direct.h>
#else
#ifndef getcwd
#include <unistd.h>
#endif
#endif
#include <cstring>
#include <API/Core/IOData/inputsource_file.h>
CL_InputSource_File::CL_InputSource_File(const std::string &_filename)
{
filename = _filename;
filehandle = NULL;
open();
}
CL_InputSource_File::CL_InputSource_File(const CL_InputSource_File *source)
{
filename = source->filename;
filehandle = NULL;
open();
fseek(filehandle, ftell(source->filehandle), SEEK_SET);
}
CL_InputSource_File::~CL_InputSource_File()
{
close();
}
std::string CL_InputSource_File::translate_path(const std::string &path)
{
int len = 0;
// try to figure out if path is absolute.
if (path.length() > 0 && (path[0] == '\\' || path[0] == '/' || (path.length() > 1 && path[1] == ':')))
{
// path is absolute
return path;
}
else
{
//note, I moved BigZaphod's mac path hack to Application/MacOS/clanapp.cpp -mrfun may 18 2006
char cwd[1026];
if (getcwd(cwd, 1024) == NULL) throw CL_Error("Working dir is more than 1024 characters!");
len = strlen(cwd);
if (cwd[len-1] != '/' && cwd[len-1] != '\\') strcat(cwd, "/");
return std::string(cwd) + std::string(path);
}
}
int CL_InputSource_File::read(void *data, int size)
{
return fread(data, 1, size, filehandle);
}
void CL_InputSource_File::open()
{
if (filehandle != NULL) return;
#ifndef WIN32 // hate win32 non posix conform
if (filename[0] == '!')
{
filehandle = popen(std::string(filename, 1).c_str(), "rb");
if (filehandle == NULL)
{
throw CL_Error("Could not open pipe: " + std::string(filename,1));
}
filesize = 99999999;
}
else
#endif
{
filename = translate_path(filename);
filehandle = fopen(filename.c_str(), "rb");
if (filehandle == NULL)
{
throw CL_Error("Could not open file: " + filename);
}
fseek(filehandle, 0, SEEK_END);
filesize = ftell(filehandle);
fseek(filehandle, 0, SEEK_SET);
}
// cl_assert(filehandle != NULL);
}
void CL_InputSource_File::close()
{
if (filehandle == NULL) return;
fclose(filehandle);
filehandle = NULL;
}
CL_InputSource *CL_InputSource_File::clone() const
{
return new CL_InputSource_File(this);
}
int CL_InputSource_File::tell() const
{
return ftell(filehandle);
}
void CL_InputSource_File::seek(int pos, SeekEnum seek_type)
{
switch (seek_type)
{
case seek_cur:
fseek(filehandle, pos, SEEK_CUR);
break;
case seek_set:
fseek(filehandle, pos, SEEK_SET);
break;
case seek_end:
fseek(filehandle, pos, SEEK_END);
break;
}
}
int CL_InputSource_File::size() const
{
return filesize;
}
void CL_InputSource_File::push_position()
{
int a = ftell(filehandle);
stack.push(a);
}
void CL_InputSource_File::pop_position()
{
int a = stack.top();
stack.pop();
fseek(filehandle, a, SEEK_SET);
}
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