]>
Commit | Line | Data |
---|---|---|
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 the directory name but the name of the file in this directory. All these | |
63 | commands change the 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 the 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 | \membersection{wxFileSystem::FileNameToURL}\label{wxfilesystemfilenametourl} | |
93 | ||
94 | \func{static wxString}{FileNameToURL}{\param{wxFileName }{filename}} | |
95 | ||
96 | Converts filename into URL. | |
97 | ||
98 | \wxheading{See also} | |
99 | ||
100 | \helpref{wxFileSystem::URLToFileName}{wxfilesystemurltofilename}, | |
101 | \helpref{wxFileName}{wxfilename} | |
102 | ||
103 | \membersection{wxFileSystem::FindFirst}\label{wxfilesystemfindfirst} | |
104 | ||
105 | \func{wxString}{FindFirst}{\param{const wxString\& }{wildcard}, \param{int }{flags = 0}} | |
106 | ||
107 | Works like \helpref{wxFindFirstFile}{wxfindfirstfile}. Returns name of the first | |
108 | filename (within filesystem's current path) that matches {\it wildcard}. {\it flags} may be one of | |
109 | wxFILE (only files), wxDIR (only directories) or 0 (both). | |
110 | ||
111 | \membersection{wxFileSystem::FindNext}\label{wxfilesystemfindnext} | |
112 | ||
113 | \func{wxString}{FindNext}{\void} | |
114 | ||
115 | Returns the next filename that matches parameters passed to \helpref{FindFirst}{wxfilesystemfindfirst}. | |
116 | ||
117 | \membersection{wxFileSystem::OpenFile}\label{wxfilesystemopenfile} | |
118 | ||
119 | \func{wxFSFile*}{OpenFile}{\param{const wxString\& }{location}} | |
120 | ||
121 | Opens the file and returns a pointer to a \helpref{wxFSFile}{wxfsfile} object | |
122 | or NULL if failed. It first tries to open the file in relative scope | |
123 | (based on value passed to ChangePathTo() method) and then as an | |
124 | absolute path. Note that the user is responsible for deleting the returned | |
125 | wxFSFile. | |
126 | ||
127 | \membersection{wxFileSystem::URLToFileName}\label{wxfilesystemurltofilename} | |
128 | ||
129 | \func{static wxFileName}{URLToFileName}{\param{const wxString\& }{url}} | |
130 | ||
131 | Converts URL into a well-formed filename. The URL must use the {\tt file} | |
132 | protocol. | |
133 | ||
134 | \wxheading{See also} | |
135 | ||
136 | \helpref{wxFileSystem::FileNameToURL}{wxfilesystemfilenametourl}, | |
137 | \helpref{wxFileName}{wxfilename} | |
138 |