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Commit	Line	Data
	1	%
	2	% automatically generated by HelpGen from
	3	% fsfile.tex at 21/Mar/99 23:00:52
	4	%
	5
	6	\section{\class{wxFSFile}}\label{wxfsfile}
	7
	8	This class represents a single file opened by \helpref{wxFileSystem}{wxfilesystem}.
	9	It provides more information than wxWindow's input stream
	10	(stream, filename, mime type, anchor).
	11
	12	{\bf Note:} Any pointer returned by a method of wxFSFile is valid
	13	only as long as the wxFSFile object exists. For example a call to GetStream()
	14	doesn't {\it create} the stream but only returns the pointer to it. In
	15	other words after 10 calls to GetStream() you will have obtained ten identical
	16	pointers.
	17
	18	\wxheading{Derived from}
	19
	20	\helpref{wxObject}{wxobject}
	21
	22	\wxheading{Include files}
	23
	24	<wx/filesys.h>
	25
	26	\wxheading{See Also}
	27
	28	\helpref{wxFileSystemHandler}{wxfilesystemhandler},
	29	\helpref{wxFileSystem}{wxfilesystem},
	30	\helpref{Overview}{fs}
	31
	32	\latexignore{\rtfignore{\wxheading{Members}}}
	33
	34	\membersection{wxFSFile::wxFSFile}\label{wxfsfilewxfsfile}
	35
	36	\func{}{wxFSFile}{\param{wxInputStream }{*stream}, \param{const wxString\& }{loc}, \param{const wxString\& }{mimetype}, \param{const wxString\& }{anchor}, \param{wxDateTime }{modif}}
	37
	38	Constructor. You probably won't use it. See Notes for details.
	39
	40	\wxheading{Parameters}
	41
	42	\docparam{stream}{The input stream that will be used to access data}
	43
	44	\docparam{location}{The full location (aka filename) of the file}
	45
	46	\docparam{mimetype}{MIME type of this file. Mime type is either extension-based or HTTP Content-Type}
	47
	48	\docparam{anchor}{Anchor. See \helpref{GetAnchor()}{wxfsfilegetanchor} for details.}
	49
	50	If you are not sure of the meaning of these params, see the description of the GetXXXX()
	51	functions.
	52
	53	\wxheading{Notes}
	54
	55	It is seldom used by the application programmer but you will need it if
	56	you are writing your own virtual FS. For example you may need something
	57	similar to wxMemoryInputStream, but because wxMemoryInputStream
	58	doesn't free the memory when destroyed and thus passing a memory stream
	59	pointer into wxFSFile constructor would lead to memory leaks, you
	60	can write your own class derived from wxFSFile:
	61
	62	\begin{verbatim}
	63	class wxMyFSFile : public wxFSFile
	64	{
	65	private:
	66	void *m_Mem;
	67	public:
	68	wxMyFSFile(.....)
	69	~wxMyFSFile() {free(m_Mem);}
	70	// of course dtor is virtual ;-)
	71	};
	72	\end{verbatim}
	73
	74	\membersection{wxFSFile::DetachStream}\label{wxfsfiledetachstream}
	75
	76	\func{void}{DetachStream}{\void}
	77
	78	Detaches the stream from the wxFSFile object. That is, the
	79	stream obtained with {\tt GetStream()} will continue its existance
	80	after the wxFSFile object is deleted. You will have to delete
	81	the stream yourself.
	82
	83	\membersection{wxFSFile::GetAnchor}\label{wxfsfilegetanchor}
	84
	85	\constfunc{const wxString\&}{GetAnchor}{\void}
	86
	87	Returns anchor (if present). The term of {\bf anchor} can be easily
	88	explained using few examples:
	89
	90	\begin{verbatim}
	91	index.htm#anchor /* 'anchor' is anchor */
	92	index/wx001.htm /* NO anchor here! */
	93	archive/main.zip#zip:index.htm#global /* 'global' */
	94	archive/main.zip#zip:index.htm /* NO anchor here! */
	95	\end{verbatim}
	96
	97	Usually an anchor is presented only if the MIME type is 'text/html'.
	98	But it may have some meaning with other files;
	99	for example myanim.avi\#200 may refer to position in animation
	100	or reality.wrl\#MyView may refer to a predefined view in VRML.
	101
	102	\membersection{wxFSFile::GetLocation}\label{wxfsfilegetlocation}
	103
	104	\constfunc{const wxString\&}{GetLocation}{\void}
	105
	106	Returns full location of the file, including path and protocol.
	107	Examples :
	108
	109	\begin{verbatim}
	110	http://www.wxwidgets.org
	111	http://www.ms.mff.cuni.cz/~vsla8348/wxhtml/archive.zip#zip:info.txt
	112	file:/home/vasek/index.htm
	113	relative-file.htm
	114	\end{verbatim}
	115
	116	\membersection{wxFSFile::GetMimeType}\label{wxfsfilegetmimetype}
	117
	118	\constfunc{const wxString\&}{GetMimeType}{\void}
	119
	120	Returns the MIME type of the content of this file. It is either
	121	extension-based (see wxMimeTypesManager) or extracted from
	122	HTTP protocol Content-Type header.
	123
	124	\membersection{wxFSFile::GetModificationTime}\label{wxfsfilegetmodificationtime}
	125
	126	\constfunc{wxDateTime}{GetModificationTime}{\void}
	127
	128	Returns time when this file was modified.
	129
	130	\membersection{wxFSFile::GetStream}\label{wxfsfilegetstream}
	131
	132	\constfunc{wxInputStream*}{GetStream}{\void}
	133
	134	Returns pointer to the stream. You can use the returned
	135	stream to directly access data. You may suppose
	136	that the stream provide Seek and GetSize functionality
	137	(even in the case of the HTTP protocol which doesn't provide
	138	this by default. wxHtml uses local cache to work around
	139	this and to speed up the connection).
	140