mirror of https://github.com/stella-emu/stella.git
96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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//
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// Copyright (c) 1995-2014 by Bradford W. Mott, Stephen Anthony
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// and the Stella Team
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//
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// See the file "License.txt" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//
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// $Id$
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//============================================================================
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#ifndef FS_NODE_ZIP_HXX
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#define FS_NODE_ZIP_HXX
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#include "StringList.hxx"
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#include "FSNode.hxx"
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/*
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* Implementation of the Stella file system API based on ZIP archives.
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* ZIP archives are treated as directories if the contain more than one ROM
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* file, as a file if they contain a single ROM file, and as neither if the
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* archive is empty. Hence, if a ZIP archive isn't a directory *or* a file,
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* it is invalid.
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*
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* Parts of this class are documented in the base interface class, AbstractFSNode.
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*/
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class FilesystemNodeZIP : public AbstractFSNode
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{
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public:
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/**
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* Creates a FilesystemNodeZIP with the root node as path.
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*/
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FilesystemNodeZIP();
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/**
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* Creates a FilesystemNodeZIP for a given path.
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*
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* @param path String with the path the new node should point to.
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* @param node Raw pointer to use for the internal FSNode
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*/
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FilesystemNodeZIP(const string& path);
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bool exists() const { return _realNode && _realNode->exists(); }
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const string& getName() const { return _virtualFile; }
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const string& getPath() const { return _path; }
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string getShortPath() const { return _shortPath; }
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bool isDirectory() const { return _numFiles > 1; }
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bool isFile() const { return _numFiles == 1; }
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bool isReadable() const { return _realNode && _realNode->isReadable(); }
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bool isWritable() const { return false; }
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//////////////////////////////////////////////////////////
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// For now, ZIP files cannot be modified in any way
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bool makeDir() { return false; }
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bool rename(const string& newfile) { return false; }
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//////////////////////////////////////////////////////////
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bool getChildren(AbstractFSList& list, ListMode mode, bool hidden) const;
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AbstractFSNode* getParent() const;
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uInt32 read(uInt8*& image) const;
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private:
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FilesystemNodeZIP(const string& zipfile, const string& virtualfile,
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shared_ptr<AbstractFSNode> realnode);
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void setFlags(const string& zipfile, const string& virtualfile,
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shared_ptr<AbstractFSNode> realnode);
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private:
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/* Error types */
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enum zip_error
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{
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ZIPERR_NONE = 0,
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ZIPERR_NOT_A_FILE,
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ZIPERR_NOT_READABLE,
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ZIPERR_NO_ROMS
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};
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shared_ptr<AbstractFSNode> _realNode;
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string _zipFile, _virtualFile;
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string _path, _shortPath;
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zip_error _error;
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uInt32 _numFiles;
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};
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#endif
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