wx.MemoryFSHandler¶This wx.FileSystem handler can store arbitrary data in memory stream and make them accessible via an URL.
It is particularly suitable for storing bitmaps from resources or included XPM files so that they can be used with HTML or wx.html2.WebView.
Filenames are prefixed with "memory:" , e.g. "memory:myfile.html" .
Example:
def OnAbout(self, event):
bcur = wx.BeginBusyCursor()
wx.FileSystem.AddHandler(wx.MemoryFSHandler)
wx.MemoryFSHandler.AddFile("logo.pcx", wx.Bitmap("logo.pcx", wx.BITMAP_TYPE_PCX))
wx.MemoryFSHandler.AddFile("about.htm",
"<html><body>About: "
"<img src=\"memory:logo.pcx\"></body></html>")
dlg = wx.Dialog(self, -1, _("About"))
topsizer = wx.BoxSizer(wx.VERTICAL)
html = wx.html.HtmlWindow(dlg, size=wx.Size(380, 160), style=wx.HW_SCROLLBAR_NEVER)
html.SetBorders(0)
html.LoadPage("memory:about.htm")
html.SetSize(html.GetInternalRepresentation().GetWidth(),
html.GetInternalRepresentation().GetHeight())
topsizer.Add(html, 1, wx.ALL, 10)
topsizer.Add(wx.StaticLine(dlg, -1), 0, wx.EXPAND | wx.LEFT | wx.RIGHT, 10)
topsizer.Add(wx.Button(dlg, wx.ID_OK, "Ok"),
0, wx.ALL | wx.ALIGN_RIGHT, 15)
dlg.SetAutoLayout(True)
dlg.SetSizer(topsizer)
topsizer.Fit(dlg)
dlg.Centre()
dlg.ShowModal()
wx.MemoryFSHandler.RemoveFile("logo.pcx")
wx.MemoryFSHandler.RemoveFile("about.htm")
Methods Summary¶__init__ |
Constructor. |
AddFile |
Adds a file to the list of the files stored in memory. |
AddFileWithMimeType |
Like AddFile , but lets you explicitly specify added file’s MIME type. |
RemoveFile |
Removes a file from memory FS and frees the occupied memory. |
Class API¶
Inheritance diagram for class MemoryFSHandler:
wx.MemoryFSHandler(FileSystemHandler)¶Possible constructors:
MemoryFSHandler()
This FileSystem handler can store arbitrary data in memory stream and make them accessible via an URL.
__init__(self)¶Constructor.
AddFile(*args, **kw)¶
Overloaded Implementations:
AddFile (filename, image, type)
Adds a file to the list of the files stored in memory.
Stored data (bitmap, text or raw data) will be copied into private memory stream and available under name "memory:" + filename.
| Parameters: |
|
|---|
Note
you must use a type value (aka image format) that wxWidgets can save (e.g. JPG, PNG, see wx.Image documentation)!
See also
AddFile (filename, bitmap, type)
Adds a file to the list of the files stored in memory.
Stored data (bitmap, text or raw data) will be copied into private memory stream and available under name "memory:" + filename.
| Parameters: |
|
|---|
Note
you must use a type value (aka image format) that wxWidgets can save (e.g. JPG, PNG, see wx.Image documentation)!
See also
AddFile (filename, textdata)
Adds a file to the list of the files stored in memory.
Stored data (bitmap, text or raw data) will be copied into private memory stream and available under name "memory:" + filename.
| Parameters: |
|
|---|
Note
you must use a type value (aka image format) that wxWidgets can save (e.g. JPG, PNG, see wx.Image documentation)!
See also
AddFile (filename, binarydata)
Add a file from raw data in a python buffer compatible object.
AddFileWithMimeType(*args, **kw)¶ Overloaded Implementations:
AddFileWithMimeType (filename, textdata, mimetype)
Like AddFile , 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.
| Parameters: |
|
|---|
New in version 2.8.5.
See also
AddFileWithMimeType (filename, binarydata, mimetype)
Add a file from raw data in a python buffer compatible object.
RemoveFile(filename)¶Removes a file from memory FS and frees the occupied memory.
| Parameters: | filename (string) – |
|---|