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128 lines
4.6 KiB
C++
128 lines
4.6 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt/ Thomas Alten
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#pragma once
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#include "IReadFile.h"
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#include "IFileList.h"
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namespace irr
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{
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namespace io
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{
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//! FileSystemType: which filesystem should be used for e.g. browsing
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enum EFileSystemType
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{
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FILESYSTEM_NATIVE = 0, // Native OS FileSystem
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FILESYSTEM_VIRTUAL // Virtual FileSystem
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};
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//! Contains the different types of archives
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enum E_FILE_ARCHIVE_TYPE
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{
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//! A PKZIP archive
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EFAT_ZIP = MAKE_IRR_ID('Z', 'I', 'P', 0),
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//! A gzip archive
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EFAT_GZIP = MAKE_IRR_ID('g', 'z', 'i', 'p'),
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//! An Android asset file archive
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EFAT_ANDROID_ASSET = MAKE_IRR_ID('A', 'S', 'S', 'E'),
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//! The type of this archive is unknown
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EFAT_UNKNOWN = MAKE_IRR_ID('u', 'n', 'k', 'n')
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};
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//! The FileArchive manages archives and provides access to files inside them.
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class IFileArchive : public virtual IReferenceCounted
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{
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public:
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//! Opens a file based on its name
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/** Creates and returns a new IReadFile for a file in the archive.
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\param filename The file to open
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\return Returns A pointer to the created file on success,
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or 0 on failure. */
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virtual IReadFile *createAndOpenFile(const path &filename) = 0;
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//! Opens a file based on its position in the file list.
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/** Creates and returns
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\param index The zero based index of the file.
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\return Returns a pointer to the created file on success, or 0 on failure. */
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virtual IReadFile *createAndOpenFile(u32 index) = 0;
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//! Returns the complete file tree
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/** \return Returns the complete directory tree for the archive,
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including all files and folders */
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virtual const IFileList *getFileList() const = 0;
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//! get the archive type
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virtual E_FILE_ARCHIVE_TYPE getType() const { return EFAT_UNKNOWN; }
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//! return the name (id) of the file Archive
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virtual const io::path &getArchiveName() const = 0;
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//! Add a directory in the archive and all it's files to the FileList
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/** Only needed for file-archives which have no information about their own
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directory structure. In that case the user must add directories manually.
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Currently this is necessary for archives of type EFAT_ANDROID_ASSET.
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The root-path itself is already set by the engine.
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If directories are not added manually opening files might still work,
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but checks if file exists will fail.
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*/
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virtual void addDirectoryToFileList(const io::path &filename) {}
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//! An optionally used password string
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/** This variable is publicly accessible from the interface in order to
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avoid single access patterns to this place, and hence allow some more
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obscurity.
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*/
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core::stringc Password;
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};
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//! Class which is able to create an archive from a file.
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/** If you want the Irrlicht Engine be able to load archives of
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currently unsupported file formats (e.g .wad), then implement
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this and add your new Archive loader with
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IFileSystem::addArchiveLoader() to the engine. */
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class IArchiveLoader : public virtual IReferenceCounted
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{
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public:
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//! Check if the file might be loaded by this class
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/** Check based on the file extension (e.g. ".zip")
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\param filename Name of file to check.
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\return True if file seems to be loadable. */
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virtual bool isALoadableFileFormat(const path &filename) const = 0;
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//! Check if the file might be loaded by this class
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/** This check may look into the file.
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\param file File handle to check.
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\return True if file seems to be loadable. */
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virtual bool isALoadableFileFormat(io::IReadFile *file) const = 0;
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//! Check to see if the loader can create archives of this type.
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/** Check based on the archive type.
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\param fileType The archive type to check.
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\return True if the archive loader supports this type, false if not */
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virtual bool isALoadableFileFormat(E_FILE_ARCHIVE_TYPE fileType) const = 0;
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//! Creates an archive from the filename
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/** \param filename File to use.
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\param ignoreCase Searching is performed without regarding the case
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\param ignorePaths Files are searched for without checking for the directories
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\return Pointer to newly created archive, or 0 upon error. */
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virtual IFileArchive *createArchive(const path &filename, bool ignoreCase, bool ignorePaths) const = 0;
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//! Creates an archive from the file
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/** \param file File handle to use.
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\param ignoreCase Searching is performed without regarding the case
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\param ignorePaths Files are searched for without checking for the directories
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\return Pointer to newly created archive, or 0 upon error. */
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virtual IFileArchive *createArchive(io::IReadFile *file, bool ignoreCase, bool ignorePaths) const = 0;
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};
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} // end namespace io
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} // end namespace irr
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