[Python-3000] PyGUI in Py3K stdlib, more details

[Bill Janssen]

>    Does it support printing? wxPython/wxWidgets support cross-platform
> low-level (pixel by pixel) printing, preview with zoom...

It's currently got the low-level idea of an offscreen Pixmap into
which the app can draw by calling "with_canvas".  The Pixmap captures
an image of the drawing, and you can then use it to draw on other
surfaces.  I think one way to go would be to add PDFCanvas (a subclass
of Canvas which draws into a PDF stream), and then PDF, which would be
similar to Pixmap, in that it would have a "with_canvas" method which
would capture the drawing in PDF form.  The PDF class would also have
a method to save it to a file.

Actually, creating these two classes could be done right now; they're
independent of the platform.  Or I suppose you could do Print and
PrintCanvas classes, which would be bound to platform-specific
printing streams.  But that seems overkill to me.

Or Postscript, or SVG.  Whatever's good.  SVG would be an interesting
choice.

Hmmm, lots of ideas here...

Bill