scummvm/engines/sword25/kernel/filesystemutil.cpp
2010-10-19 21:03:33 +00:00

136 lines
3.7 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
* $URL$
* $Id$
*
*/
/*
* This code is based on Broken Sword 2.5 engine
*
* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
*
* Licensed under GNU GPL v2
*
*/
#include "common/config-manager.h"
#include "common/fs.h"
#include "common/savefile.h"
#include "common/system.h"
#include "sword25/kernel/filesystemutil.h"
#include "sword25/kernel/persistenceservice.h"
namespace Sword25 {
#define BS_LOG_PREFIX "FILESYSTEMUTIL"
Common::String getAbsolutePath(const Common::String &path) {
Common::FSNode node(path);
if (!node.exists()) {
// An error has occurred finding the node
// We can do nothing at this pointer than return an empty string
BS_LOG_ERRORLN("A call to GetAbsolutePath failed.");
return "";
}
// Return the result
return node.getPath();
}
class BS_FileSystemUtilScummVM : public FileSystemUtil {
public:
virtual Common::String getUserdataDirectory() {
Common::String path = ConfMan.get("savepath");
if (path.empty()) {
error("No save path has been defined");
return "";
}
// Return the path
return path;
}
virtual Common::String getPathSeparator() {
return Common::String("/");
}
virtual int32 getFileSize(const Common::String &filename) {
Common::FSNode node(filename);
// If the file does not exist, return -1 as a result
if (!node.exists())
return -1;
// Get the size of the file and return it
Common::File f;
f.open(node);
uint32 size = f.size();
f.close();
return size;
}
virtual TimeDate getFileTime(const Common::String &filename) {
// TODO: There isn't any way in ScummVM to get a file's modified date/time. We will need to check
// what code makes use of it. If it's only the save game code, for example, we may be able to
// encode the date/time inside the savegame files themselves.
TimeDate result;
g_system->getTimeAndDate(result);
return result;
}
virtual bool fileExists(const Common::String &filename) {
Common::File f;
if (f.exists(filename))
return true;
// Check if the file exists in the save folder
Common::FSNode folder(PersistenceService::getSavegameDirectory());
Common::FSNode fileNode = folder.getChild(FileSystemUtil::getInstance().getPathFilename(filename));
return fileNode.exists();
}
virtual bool createDirectory(const Common::String &sirectoryName) {
// ScummVM doesn't support creating folders, so this is only a stub
BS_LOG_ERRORLN("CreateDirectory method called");
return false;
}
virtual Common::String getPathFilename(const Common::String &path) {
for (int i = path.size() - 1; i >= 0; --i) {
if ((path[i] == '/') || (path[i] == '\\')) {
return Common::String(&path.c_str()[i + 1]);
}
}
return path;
}
};
FileSystemUtil &FileSystemUtil::getInstance() {
static BS_FileSystemUtilScummVM instance;
return instance;
}
} // End of namespace Sword25