3c4f71cc3d
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52634 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
119 lines
3.9 KiB
Objective-C
119 lines
3.9 KiB
Objective-C
/////////////////////////////////////////////////////////////////////////////
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// Name: fs_mem.h
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// Purpose: interface of wxMemoryFSHandler
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// Author: wxWidgets team
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// RCS-ID: $Id$
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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/**
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@class wxMemoryFSHandler
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@wxheader{fs_mem.h}
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This wxFileSystem handler can store arbitrary
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data in memory stream and make them accessible via URL. It is particularly
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suitable for storing bitmaps from resources or included XPM files so that
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they can be used with wxHTML.
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Filenames are prefixed with "memory:", e.g. "memory:myfile.html".
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Example:
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@code
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#ifndef __WXMSW__
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#include "logo.xpm"
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#endif
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void MyFrame::OnAbout(wxCommandEvent&)
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{
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wxBusyCursor bcur;
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wxFileSystem::AddHandler(new wxMemoryFSHandler);
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wxMemoryFSHandler::AddFile("logo.pcx", wxBITMAP(logo), wxBITMAP_TYPE_PCX);
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wxMemoryFSHandler::AddFile("about.htm",
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"htmlbodyAbout: "
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"img src=\"memory:logo.pcx\"/body/html");
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wxDialog dlg(this, -1, wxString(_("About")));
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wxBoxSizer *topsizer;
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wxHtmlWindow *html;
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topsizer = new wxBoxSizer(wxVERTICAL);
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html = new wxHtmlWindow(, -1, wxDefaultPosition,
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wxSize(380, 160), wxHW_SCROLLBAR_NEVER);
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html-SetBorders(0);
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html-LoadPage("memory:about.htm");
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html-SetSize(html-GetInternalRepresentation()-GetWidth(),
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html-GetInternalRepresentation()-GetHeight());
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topsizer-Add(html, 1, wxALL, 10);
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topsizer-Add(new wxStaticLine(, -1), 0, wxEXPAND | wxLEFT | wxRIGHT, 10);
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topsizer-Add(new wxButton(, wxID_OK, "Ok"),
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0, wxALL | wxALIGN_RIGHT, 15);
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dlg.SetAutoLayout(@true);
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dlg.SetSizer(topsizer);
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topsizer-Fit();
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dlg.Centre();
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dlg.ShowModal();
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wxMemoryFSHandler::RemoveFile("logo.pcx");
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wxMemoryFSHandler::RemoveFile("about.htm");
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}
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@endcode
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@library{wxbase}
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@category{FIXME}
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@see wxMemoryFSHandler::AddFileWithMimeType
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*/
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class wxMemoryFSHandler : public wxFileSystemHandler
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{
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public:
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/**
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Constructor.
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*/
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wxMemoryFSHandler();
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//@{
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/**
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Add file to list of files stored in memory. Stored
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data (bitmap, text or raw data)
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will be copied into private memory stream and available under
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name "memory:" + @e filename.
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The @a type argument is one of @c wxBITMAP_TYPE_XXX constants.
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Note that you must use a @a type value (aka image format)
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that wxWidgets can save (e.g. JPG, PNG, see wxImage
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documentation())!
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@see AddFileWithMimeType()
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*/
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static void AddFile(const wxString& filename, wxImage& image,
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long type);
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static void AddFile(const wxString& filename,
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const wxBitmap& bitmap,
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long type);
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//@}
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//@{
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/**
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Like AddFile(), but lets you explicitly
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specify added file's MIME type. This version should be used whenever you know
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the MIME type, because it makes accessing the files faster.
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@wxsince{2.8.5}
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@see AddFile()
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*/
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static void AddFileWithMimeType(const wxString& filename,
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const wxString& textdata,
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const wxString& mimetype);
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static void AddFileWithMimeType(const wxString& filename,
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const void* binarydata,
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size_t size,
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const wxString& mimetype);
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//@}
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/**
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Remove file from memory FS and free occupied memory.
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*/
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static void RemoveFile(const wxString& filename);
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};
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