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1 | % | |
2 | % automatically generated by HelpGen from | |
3 | % filesystem.tex at 21/Mar/99 23:00:52 | |
4 | % | |
5 | ||
6 | \section{\class{wxFileSystem}}\label{wxfilesystem} | |
7 | ||
8 | This class provides an interface for opening files on different | |
9 | file systems. It can handle absolute and/or local filenames. | |
10 | It uses a system of \helpref{handlers}{wxfilesystemhandler} to | |
11 | provide access to user-defined virtual file systems. | |
12 | ||
13 | \wxheading{Derived from} | |
14 | ||
15 | \helpref{wxObject}{wxobject} | |
16 | ||
17 | \wxheading{Include files} | |
18 | ||
19 | <wx/filesys.h> | |
20 | ||
21 | \wxheading{See Also} | |
22 | ||
23 | \helpref{wxFileSystemHandler}{wxfilesystemhandler}, | |
24 | \helpref{wxFSFile}{wxfsfile}, | |
25 | \helpref{Overview}{fs} | |
26 | ||
27 | \latexignore{\rtfignore{\wxheading{Members}}} | |
28 | ||
29 | \membersection{wxFileSystem::wxFileSystem}\label{wxfilesystemwxfilesystem} | |
30 | ||
31 | \func{}{wxFileSystem}{\void} | |
32 | ||
33 | Constructor. | |
34 | ||
35 | \membersection{wxFileSystem::AddHandler}\label{wxfilesystemaddhandler} | |
36 | ||
37 | \func{static void}{AddHandler}{\param{wxFileSystemHandler }{*handler}} | |
38 | ||
39 | This static function adds new handler into the list of handlers. | |
40 | The \helpref{handlers}{wxfilesystemhandler} provide access to virtual FS. | |
41 | ||
42 | \wxheading{Note} | |
43 | ||
44 | You can call: | |
45 | ||
46 | \begin{verbatim} | |
47 | wxFileSystem::AddHandler(new My_FS_Handler); | |
48 | \end{verbatim} | |
49 | ||
50 | This is because (a) AddHandler is a static method, and (b) the handlers | |
51 | are deleted in wxFileSystem's destructor so that you don't have to | |
52 | care about it. | |
53 | ||
54 | \membersection{wxFileSystem::ChangePathTo}\label{wxfilesystemchangepathto} | |
55 | ||
56 | \func{void}{ChangePathTo}{\param{const wxString\& }{location}, \param{bool }{is\_dir = FALSE}} | |
57 | ||
58 | Sets the current location. {\it location} parameter passed to | |
59 | \helpref{OpenFile}{wxfilesystemopenfile} is relative to this path. | |
60 | ||
61 | {\bf Caution! } Unless {\it is\_dir} is TRUE the {\it location} parameter | |
62 | is not directory name but the name of the file in this directory!! All these | |
63 | commands change path to "dir/subdir/" : | |
64 | ||
65 | \begin{verbatim} | |
66 | ChangePathTo("dir/subdir/xh.htm"); | |
67 | ChangePathTo("dir/subdir", TRUE); | |
68 | ChangePathTo("dir/subdir/", TRUE); | |
69 | \end{verbatim} | |
70 | ||
71 | \wxheading{Parameters} | |
72 | ||
73 | \docparam{location}{the new location. Its meaning depends on value of {\it is\_dir}} | |
74 | ||
75 | \docparam{is\_dir}{if TRUE {\it location} is new directory. If FALSE (default) | |
76 | {\it location} is {\bf file in} the new directory.} | |
77 | ||
78 | \wxheading{Example} | |
79 | ||
80 | \begin{verbatim} | |
81 | f = fs -> OpenFile("hello.htm"); // opens file 'hello.htm' | |
82 | fs -> ChangePathTo("subdir/folder", TRUE); | |
83 | f = fs -> OpenFile("hello.htm"); // opens file 'subdir/folder/hello.htm' !! | |
84 | \end{verbatim} | |
85 | ||
86 | \membersection{wxFileSystem::GetPath}\label{wxfilesystemgetpath} | |
87 | ||
88 | \func{wxString}{GetPath}{\void} | |
89 | ||
90 | Returns actual path (set by \helpref{ChangePathTo}{wxfilesystemchangepathto}). | |
91 | ||
92 | ||
93 | \membersection{wxFileSystem::FindFirst}\label{wxfilesystemfindfirst} | |
94 | ||
95 | \func{wxString}{FindFirst}{\param{const wxString\& }{wildcard}, \param{int }{flags = 0}} | |
96 | ||
97 | Works like \helpref{wxFindFirstFile}{wxfindfirstfile}. Returns name of the first | |
98 | filename (within filesystem's current path) that matches {\it wildcard}. {\it flags} may be one of | |
99 | wxFILE (only files), wxDIR (only directories) or 0 (both). | |
100 | ||
101 | \membersection{wxFileSystem::FindNext}\label{wxfilesystemfindnext} | |
102 | ||
103 | \func{wxString}{FindNext}{\void} | |
104 | ||
105 | Returns next filename that matches parameters passed to \helpref{FindFirst}{wxfilesystemfindfirst}. | |
106 | ||
107 | ||
108 | \membersection{wxFileSystem::OpenFile}\label{wxfilesystemopenfile} | |
109 | ||
110 | \func{wxFSFile*}{OpenFile}{\param{const wxString\& }{location}} | |
111 | ||
112 | Opens file and returns pointer to \helpref{wxFSFile}{wxfsfile} object | |
113 | or NULL if failed. It first tries to open the file in relative scope | |
114 | (based on value passed to ChangePathTo() method) and then as an | |
115 | absolute path. | |
116 |