[wxWidgets.git] / docs / latex / wx / fs_mem.tex

%
% automatically generated by HelpGen from
% /home/vasek/fs\_mem.h at 27/Feb/00 19:23:10
%

\section{\class{wxMemoryFSHandler}}\label{wxmemoryfshandler}

This \helpref{wxFileSystem}{wxfilesystem} handler can store arbitrary 
data in memory stream and make them accessible via URL. It is particularly
suitable for storing bitmaps from resources or included XPM files so that
they can be used with wxHTML.

Filenames are prefixed with "memory:", e.g. "memory:myfile.html".

Example:

\begin{verbatim}
#ifndef __WXMSW__
#include "logo.xpm"
#endif

void MyFrame::OnAbout(wxCommandEvent&)
{
    wxBusyCursor bcur;
    wxFileSystem::AddHandler(new wxMemoryFSHandler);
    wxMemoryFSHandler::AddFile("logo.pcx", wxBITMAP(logo), wxBITMAP_TYPE_PCX);
    wxMemoryFSHandler::AddFile("about.htm", 
                               "<html><body>About: "
                               "<img src=\"memory:logo.pcx\"></body></html>");

    wxDialog dlg(this, -1, wxString(_("About")));
    wxBoxSizer *topsizer;
    wxHtmlWindow *html;
    topsizer = new wxBoxSizer(wxVERTICAL);
    html = new wxHtmlWindow(&dlg, -1, wxDefaultPosition, 
                            wxSize(380, 160), wxHW_SCROLLBAR_NEVER);
    html->SetBorders(0);
    html->LoadPage("memory:about.htm");
    html->SetSize(html->GetInternalRepresentation()->GetWidth(), 
                  html->GetInternalRepresentation()->GetHeight());
    topsizer->Add(html, 1, wxALL, 10);
    topsizer->Add(new wxStaticLine(&dlg, -1), 0, wxEXPAND | wxLEFT | wxRIGHT, 10);
    topsizer->Add(new wxButton(&dlg, wxID_OK, "Ok"), 
                  0, wxALL | wxALIGN_RIGHT, 15);
    dlg.SetAutoLayout(true);
    dlg.SetSizer(topsizer);
    topsizer->Fit(&dlg);
    dlg.Centre();
    dlg.ShowModal();
    
    wxMemoryFSHandler::RemoveFile("logo.pcx");
    wxMemoryFSHandler::RemoveFile("about.htm");
}
\end{verbatim}


\wxheading{Derived from}

\helpref{wxFileSystemHandler}{wxfilesystemhandler}

\wxheading{Include files}

<wx/fs\_mem.h>


\latexignore{\rtfignore{\wxheading{Members}}}


\membersection{wxMemoryFSHandler::wxMemoryFSHandler}\label{wxmemoryfshandlerwxmemoryfshandler}

\func{}{wxMemoryFSHandler}{\void}

Constructor.

\membersection{wxMemoryFSHandler::AddFile}\label{wxmemoryfshandleraddfile}

\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{wxImage\& }{image}, \param{long }{type}}

\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{const wxBitmap\& }{bitmap}, \param{long }{type}}

Add file to list of files stored in memory. Stored 
data (bitmap, text or raw data)
will be copied into private memory stream and available under 
name "memory:" + \arg{filename}.

The \arg{type} argument is one of {\tt wxBITMAP\_TYPE\_XXX} constants.
Note that you must use a \arg{type} value (aka image format)
that wxWidgets can save (e.g. JPG, PNG, see \helpref{wxImage
documentation}{wximage})!

\wxheading{See also}

\helpref{AddFileWithMimeType}{wxmemoryfshandleraddfilewithmimetype}


\membersection{wxMemoryFSHandler::AddFileWithMimeType}\label{wxmemoryfshandleraddfilewithmimetype}

\func{static void}{AddFileWithMimeType}{\param{const wxString\& }{filename}, \param{const wxString\& }{textdata}, \param{const wxString\& }{mimetype}}

\func{static void}{AddFileWithMimeType}{\param{const wxString\& }{filename}, \param{const void* }{binarydata}, \param{size\_t }{size}, \param{const wxString\& }{mimetype}}

Like \helpref{AddFile}{wxmemoryfshandleraddfile}, but lets you explicitly
specify added file's MIME type. This version should be used whenever you know
the MIME type, because it makes accessing the files faster.

\newsince{2.8.5}

\wxheading{See also}

\helpref{AddFile}{wxmemoryfshandleraddfile}

\membersection{wxMemoryFSHandler::RemoveFile}\label{wxmemoryfshandlerremovefile}

\func{static void}{RemoveFile}{\param{const wxString\& }{filename}}

Remove file from memory FS and free occupied memory.
Commit	Line	Data
dbddf573 VS	1	%
	2	% automatically generated by HelpGen from
	3	% /home/vasek/fs\_mem.h at 27/Feb/00 19:23:10
	4	%
	5
	6	\section{\class{wxMemoryFSHandler}}\label{wxmemoryfshandler}
	7
	8	This \helpref{wxFileSystem}{wxfilesystem} handler can store arbitrary
	9	data in memory stream and make them accessible via URL. It is particularly
	10	suitable for storing bitmaps from resources or included XPM files so that
	11	they can be used with wxHTML.
	12
	13	Filenames are prefixed with "memory:", e.g. "memory:myfile.html".
	14
	15	Example:
	16
	17	\begin{verbatim}
	18	#ifndef __WXMSW__
	19	#include "logo.xpm"
	20	#endif
	21
	22	void MyFrame::OnAbout(wxCommandEvent&)
	23	{
	24	wxBusyCursor bcur;
2b5f62a0	25	wxFileSystem::AddHandler(new wxMemoryFSHandler);
dbddf573 VS	26	wxMemoryFSHandler::AddFile("logo.pcx", wxBITMAP(logo), wxBITMAP_TYPE_PCX);
	27	wxMemoryFSHandler::AddFile("about.htm",
	28	"<html><body>About: "
	29	"<img src=\"memory:logo.pcx\"></body></html>");
	30
	31	wxDialog dlg(this, -1, wxString(_("About")));
	32	wxBoxSizer *topsizer;
	33	wxHtmlWindow *html;
	34	topsizer = new wxBoxSizer(wxVERTICAL);
	35	html = new wxHtmlWindow(&dlg, -1, wxDefaultPosition,
	36	wxSize(380, 160), wxHW_SCROLLBAR_NEVER);
	37	html->SetBorders(0);
	38	html->LoadPage("memory:about.htm");
	39	html->SetSize(html->GetInternalRepresentation()->GetWidth(),
	40	html->GetInternalRepresentation()->GetHeight());
	41	topsizer->Add(html, 1, wxALL, 10);
	42	topsizer->Add(new wxStaticLine(&dlg, -1), 0, wxEXPAND \| wxLEFT \| wxRIGHT, 10);
	43	topsizer->Add(new wxButton(&dlg, wxID_OK, "Ok"),
	44	0, wxALL \| wxALIGN_RIGHT, 15);
	45	dlg.SetAutoLayout(true);
	46	dlg.SetSizer(topsizer);
	47	topsizer->Fit(&dlg);
	48	dlg.Centre();
	49	dlg.ShowModal();
	50
	51	wxMemoryFSHandler::RemoveFile("logo.pcx");
	52	wxMemoryFSHandler::RemoveFile("about.htm");
	53	}
	54	\end{verbatim}
	55
	56
	57	\wxheading{Derived from}
	58
	59	\helpref{wxFileSystemHandler}{wxfilesystemhandler}
	60
	61	\wxheading{Include files}
	62
e7240349	63	<wx/fs\_mem.h>
dbddf573 VS	64
	65
	66	\latexignore{\rtfignore{\wxheading{Members}}}
	67
	68
	69	\membersection{wxMemoryFSHandler::wxMemoryFSHandler}\label{wxmemoryfshandlerwxmemoryfshandler}
	70
	71	\func{}{wxMemoryFSHandler}{\void}
	72
	73	Constructor.
	74
	75	\membersection{wxMemoryFSHandler::AddFile}\label{wxmemoryfshandleraddfile}
	76
	77	\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{wxImage\& }{image}, \param{long }{type}}
	78
	79	\func{static void}{AddFile}{\param{const wxString\& }{filename}, \param{const wxBitmap\& }{bitmap}, \param{long }{type}}
	80
dbddf573 VS	81	Add file to list of files stored in memory. Stored
	82	data (bitmap, text or raw data)
	83	will be copied into private memory stream and available under
54ab3bb8	84	name "memory:" + \arg{filename}.
dbddf573	85
54ab3bb8 VS	86	The \arg{type} argument is one of {\tt wxBITMAP\_TYPE\_XXX} constants.
	87	Note that you must use a \arg{type} value (aka image format)
	88	that wxWidgets can save (e.g. JPG, PNG, see \helpref{wxImage
	89	documentation}{wximage})!
dbddf573	90
35fc0be7 VS	91	\wxheading{See also}
	92
	93	\helpref{AddFileWithMimeType}{wxmemoryfshandleraddfilewithmimetype}
	94
	95
	96	\membersection{wxMemoryFSHandler::AddFileWithMimeType}\label{wxmemoryfshandleraddfilewithmimetype}
	97
	98	\func{static void}{AddFileWithMimeType}{\param{const wxString\& }{filename}, \param{const wxString\& }{textdata}, \param{const wxString\& }{mimetype}}
	99
	100	\func{static void}{AddFileWithMimeType}{\param{const wxString\& }{filename}, \param{const void* }{binarydata}, \param{size\_t }{size}, \param{const wxString\& }{mimetype}}
	101
	102	Like \helpref{AddFile}{wxmemoryfshandleraddfile}, but lets you explicitly
	103	specify added file's MIME type. This version should be used whenever you know
	104	the MIME type, because it makes accessing the files faster.
	105
	106	\newsince{2.8.5}
	107
	108	\wxheading{See also}
	109
	110	\helpref{AddFile}{wxmemoryfshandleraddfile}
dbddf573 VS	111
	112	\membersection{wxMemoryFSHandler::RemoveFile}\label{wxmemoryfshandlerremovefile}
	113
	114	\func{static void}{RemoveFile}{\param{const wxString\& }{filename}}
	115
	116	Remove file from memory FS and free occupied memory.
	117