I have fixed plot.py and revised fftsink.py so they work with Mac OS X.
To fix plot.py, in PlotCanvas.__init__ I changed this:
if wx.Platform != "__WXMAC__":
self.OnSize(None) # sets the initial size based on client size
To this:
self.OnSize(None) # UNCONDITIONAL, needed to create self._Buffer
Without this fix, fftsink repeatedly fails in PlotCanvas.OnPaint, with
a traceback complaining 'fft_window' object has no attribute '_Buffer'.
_Buffer is assigned (and thus created) in PlotCanvas.OnSize.
Apparently OnSize should be called before OnPaint, but this does not
happen on Mac OS X when the "if ..." is left in place.
In addition to fixing plot.py, I had to revise fftsink.py so wxgui
displays only 1 in nscans traces, to avoid overloading wxgui on the Mac.
The changes were essentially the same as I made in scopesink.py, as
described earlier today in
http://lists.gnu.org/archive/html/discuss-gnuradio/2005-07/msg00197.html
You can set nscans on the command line (from argv[1]). fftsink updates the
display when nscans >= 3.
To bring up the menu of fftsink controls, ctrl-click instead of right
click. The Mac has only one mouse button.
Jon Jacky
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