2 Copyright (C) 2001-2006, William Joseph.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #if !defined( INCLUDED_IFILESYSTEM_H )
23 #define INCLUDED_IFILESYSTEM_H
26 #include "generic/constant.h"
27 #include "generic/callback.h"
29 typedef Callback<void(const char*)> ArchiveNameCallback;
30 typedef Callback<void(const char*)> FileNameCallback;
33 class ArchiveTextFile;
38 typedef struct _GSList GSList;
40 /// The Virtual File System.
41 class VirtualFileSystem
44 INTEGER_CONSTANT( Version, 1 );
45 STRING_CONSTANT( Name, "VFS" );
47 /// \brief Adds a root search \p path.
48 /// Called before \c initialise.
49 virtual void initDirectory( const char *path ) = 0;
50 /// \brief Initialises the filesystem.
51 /// Called after all root search paths have been added.
52 virtual void initialise() = 0;
53 /// \brief Clear the filesystem if supported
54 virtual void clear() = 0;
55 /// \brief Reload the filesystem if supported
56 virtual void refresh() = 0;
57 /// \brief Shuts down the filesystem.
58 virtual void shutdown() = 0;
60 /// \brief Returns the file identified by \p filename opened in binary mode, or 0 if not found.
61 /// The caller must \c release() the file returned if it is not 0.
62 virtual ArchiveFile* openFile( const char* filename ) = 0;
63 /// \brief Returns the file identified by \p filename opened in text mode, or 0 if not found.
64 /// The caller must \c release() the file returned if it is not 0.
65 virtual ArchiveTextFile* openTextFile( const char* filename ) = 0;
67 /// \brief Opens the file identified by \p filename and reads it into \p buffer, or sets *\p buffer to 0 if not found.
68 /// Returns the size of the buffer allocated, or undefined value if *\p buffer is 0;
69 /// The caller must free the allocated buffer by calling \c freeFile
70 /// \deprecated Deprecated - use \c openFile.
71 virtual std::size_t loadFile( const char *filename, void **buffer ) = 0;
72 /// \brief Frees the buffer returned by \c loadFile.
73 /// \deprecated Deprecated.
74 virtual void freeFile( void *p ) = 0;
76 /// \brief Calls \p callback for each directory under \p basedir.
77 virtual void forEachDirectory( const char* basedir, const FileNameCallback& callback, std::size_t depth = 1 ) = 0;
78 /// \brief Calls \p callback for each file under \p basedir matching \p extension.
79 /// Use "*" as \p extension to match all file extensions.
80 virtual void forEachFile( const char* basedir, const char* extension, const FileNameCallback& callback, std::size_t depth = 1 ) = 0;
82 /// \brief Returns a list containing the relative names of all the directories under \p basedir.
83 /// The caller must free the returned list by calling \c clearFileDirList;
84 /// \deprecated Deprecated - use \c forEachDirectory.
85 virtual GSList* getDirList( const char *basedir ) = 0;
86 /// \brief Returns a list containing the relative names of the files under \p basedir (\p extension can be "*" for all files).
87 /// The caller must free the returned list by calling \c clearFileDirList.
88 /// \deprecated Deprecated - use \c forEachFile.
89 virtual GSList* getFileList( const char *basedir, const char *extension ) = 0;
90 /// \brief Frees the \p list returned from \c getDirList or \c getFileList.
91 /// \deprecated Deprecated.
92 virtual void clearFileDirList( GSList **list ) = 0;
94 /// \brief Returns the absolute filename for a relative \p name, or "" if not found.
95 virtual const char* findFile( const char* name ) = 0;
96 /// \brief Returns the filesystem root for an absolute \p name, or "" if not found.
97 /// This can be used to convert an absolute name to a relative name.
98 virtual const char* findRoot( const char* name ) = 0;
100 /// \brief Attach an \p observer whose realise() and unrealise() methods will be called when the filesystem is initialised or shut down.
101 virtual void attach( ModuleObserver& observer ) = 0;
102 /// \brief Detach an \p observer previously-attached by calling \c attach.
103 virtual void detach( ModuleObserver& observer ) = 0;
105 virtual Archive* getArchive( const char* archiveName, bool pakonly = true ) = 0;
106 virtual void forEachArchive( const ArchiveNameCallback& callback, bool pakonly = true, bool reverse = false ) = 0;
109 #include "modulesystem.h"
111 template<typename Type>
113 typedef GlobalModule<VirtualFileSystem> GlobalFileSystemModule;
115 template<typename Type>
116 class GlobalModuleRef;
117 typedef GlobalModuleRef<VirtualFileSystem> GlobalFileSystemModuleRef;
119 inline VirtualFileSystem& GlobalFileSystem(){
120 return GlobalFileSystemModule::getTable();
124 /// \deprecated Use \c openFile.
125 inline int vfsLoadFile( const char* filename, void** buffer, int index = 0 ){
126 return static_cast<int>( GlobalFileSystem().loadFile( filename, buffer ) );
129 /// \deprecated Deprecated.
130 inline void vfsFreeFile( void* p ){
131 GlobalFileSystem().freeFile( p );