Logo Search packages:      
Sourcecode: scummvm version File versions  Download package

symbian-fs.cpp

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2003-2005 Andreas 'Sprawl' Karlsson - Original EPOC port, ESDL
 * Copyright (C) 2003-2005 Lars 'AnotherGuest' Persson - Original EPOC port, Audio System
 * Copyright (C) 2005 Jurgen 'SumthinWicked' Braam - EPOC/CVS maintainer
 * Copyright (C) 2005 The ScummVM project
 *
 * 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.
 *
 * $Header: /cvsroot/scummvm/scummvm/backends/fs/symbian/symbian-fs.cpp,v 1.4.2.1 2005/10/18 02:11:16 sev Exp $
 */

#if defined (__SYMBIAN32__) 
#include "common/stdafx.h"
#include "../fs.h"

#include <dirent.h>
#include <eikenv.h>
#include <f32file.h>

/*
 * Implementation of the ScummVM file system API based on POSIX.
 */

class SymbianFilesystemNode : public AbstractFilesystemNode {
protected:
      String _displayName;
      bool _isDirectory;
      bool _isValid;
      String _path;
      bool _isPseudoRoot;

public:
      SymbianFilesystemNode(bool aIsRoot);
      SymbianFilesystemNode(const String &path);
      SymbianFilesystemNode(const SymbianFilesystemNode *node);
      virtual String displayName() const { return _displayName; }
      virtual bool isValid() const { return _isValid; }
      virtual bool isDirectory() const { return _isDirectory; }
      virtual String path() const { return _path; }

      virtual FSList listDir(ListMode mode = kListDirectoriesOnly) const;
      virtual AbstractFilesystemNode *parent() const;
};


static const char *lastPathComponent(const Common::String &str) {
      const char *start = str.c_str();
      const char *cur = start + str.size() - 2;
      
      while (cur > start && *cur != '\\') {
            --cur;
      }
      
      return cur+1;
}

AbstractFilesystemNode *FilesystemNode::getRoot() {
      return new SymbianFilesystemNode(true);
}

AbstractFilesystemNode *FilesystemNode::getNodeForPath(const String &path) {
      return new SymbianFilesystemNode(path);
}

SymbianFilesystemNode::SymbianFilesystemNode(bool aIsRoot) {
      _path = "";
      _isValid = true;
      _isDirectory = true;
      _isPseudoRoot = aIsRoot;
      _displayName = "Root";

}

// SumthinWicked says: added next function myself, since it was not in 0.7.1.
// might still be a little buggy, or simply the reason ScummVM can't run any 
// games on the phone yet :P
SymbianFilesystemNode::SymbianFilesystemNode(const String &path) {
      if (path.size() == 0)
            _isPseudoRoot = true;
      _path = path;
      const char *dsplName = NULL, *pos = path.c_str();
      while (*pos)
            if (*pos++ == '/')
                  dsplName = pos;
      _displayName = String(dsplName);
      _isValid = true;
      _isDirectory = true;
}

SymbianFilesystemNode::SymbianFilesystemNode(const SymbianFilesystemNode *node) {
      _displayName = node->_displayName;
      _isValid = node->_isValid;
      _isDirectory = node->_isDirectory;
      _path = node->_path;
      _isPseudoRoot = node->_isPseudoRoot;
}

FSList SymbianFilesystemNode::listDir(ListMode mode) const {
      assert(_isDirectory);
      FSList myList;

      if (_isPseudoRoot) {
            // Drives enumeration
            TDriveList drivelist;
            CEikonEnv::Static()->FsSession().DriveList(drivelist);
            for (int loop=0;loop<KMaxDrives;loop++) {
                  if(drivelist[loop]>0) {
                        SymbianFilesystemNode entry(false);       
                        char drive_name[2];
                        drive_name[0] = loop+'A';
                        drive_name[1] = '\0';
                        entry._displayName = drive_name;
                        entry._isDirectory = true;
                        entry._isValid = true;
                        entry._isPseudoRoot = false;
                        char path[10];
                        sprintf(path,"%c:\\",loop+'A');
                        entry._path=path;
                        myList.push_back(wrap(new SymbianFilesystemNode(&entry)));
                  }
            }
      } else {
            TPtrC8 ptr((const unsigned char*)_path.c_str(),_path.size());
            TFileName fname;
            fname.Copy(ptr);
            TBuf8<256>nameBuf;
            CDir* dirPtr;
            if(CEikonEnv::Static()->FsSession().GetDir(fname,KEntryAttNormal|KEntryAttDir,0,dirPtr)==KErrNone) {
                  CleanupStack::PushL(dirPtr);
                  TInt cnt=dirPtr->Count();
                  for(TInt loop=0;loop<cnt;loop++) {
                        TEntry fileentry=(*dirPtr)[loop];
                        nameBuf.Copy(fileentry.iName);
                        SymbianFilesystemNode entry(false);
                        entry._isPseudoRoot = false;
                        
                        entry._displayName =(char*)nameBuf.PtrZ();
                        entry._path = _path;
                        entry._path +=(char*)nameBuf.PtrZ();
                        entry._isDirectory = fileentry.IsDir();
                        
                        // Honor the chosen mode
                        if ((mode == kListFilesOnly && entry._isDirectory) ||
                              (mode == kListDirectoriesOnly && !entry._isDirectory))
                              continue;
                        
                        if (entry._isDirectory)
                              entry._path += "\\";
                        myList.push_back(wrap(new SymbianFilesystemNode(&entry)));
                  }
                  CleanupStack::PopAndDestroy(dirPtr);
            }

      }
      return myList;
}

AbstractFilesystemNode *SymbianFilesystemNode::parent() const {
      SymbianFilesystemNode *p =NULL;

      // Root node is its own parent. Still we can't just return this
      // as the GUI code will call delete on the old node.
      if (!_isPseudoRoot && _path.size() > 3) {
            p=new SymbianFilesystemNode(false);
            const char *start = _path.c_str();
            const char *end = lastPathComponent(_path);

            p->_path = String(start, end - start);
            p->_isValid = true;
            p->_isDirectory = true;
            p->_displayName = lastPathComponent(p->_path);
      }
      else
      {
            p=new SymbianFilesystemNode(true);
      }
      return p;
}

#endif // defined(__SYMBIAN32__)

Generated by  Doxygen 1.6.0   Back to index