I think this might be a matplotlib issue. I've been having some refresh issues with matplotlib since switching to 2.6. In particular I've noticed that if I put my mouse over the toolbar and let a tooltip pop up the canvas does not get repainted. Up to now I'd been assuming this problem was isolated to me (I use ratpoison as a window manager, which can confuse some apps). I've cc'ed the matplotlib list in case anyone can throw some light on this. John dimitri pater wrote: > Hello, > I upgraded to PyGTK 2.6 from 2.4 . Now, when I switch from page 2 on a > Gtk.Notebook back to page 1, page 1 still shows some elements from > page 2 (it is not refreshed, just some parts). Both pages contain > graphs created with Matplotlib. I never had problems like this with 2.4... > Any clues somebody? If necessary, I will attach the source files. > > Best regards, > Dimitri > >------------------------------------------------------------------------ > >_______________________________________________ >pygtk mailing list py...@da... >http://www.daa.com.au/mailman/listinfo/pygtk >Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/ > >
dimitri pater schrieb: > Yes, this could could very well be a matplotlib issue. I will try to > do some tests, thanks for cc'ing it to the matplotlib list. > > Dimitri > > On 5/31/05, *John Gill* <jn...@eu... > <mailto:jn...@eu...>> wrote: > > I think this might be a matplotlib issue. > > I've been having some refresh issues with matplotlib since > switching to 2.6. In particular I've noticed that if I put my > mouse over the toolbar and let a tooltip pop up the canvas does > not get repainted. > > Up to now I'd been assuming this problem was isolated to me (I use > ratpoison as a window manager, which can confuse some apps). > > I've cc'ed the matplotlib list in case anyone can throw some light > on this. > > John > > dimitri pater wrote: > >> Hello, >> I upgraded to PyGTK 2.6 from 2.4 . Now, when I switch from page 2 >> on a Gtk.Notebook back to page 1, page 1 still shows some >> elements from page 2 (it is not refreshed, just some parts). Both >> pages contain graphs created with Matplotlib. I never had >> problems like this with 2.4... >> Any clues somebody? If necessary, I will attach the source files. >> >> Best regards, >> Dimitri >> >>------------------------------------------------------------------------ >> >>_______________________________________________ >>pygtk mailing list >>py...@da... <mailto:py...@da...> >>http://www.daa.com.au/mailman/listinfo/pygtk >>Read the PyGTK FAQ: >>http://www.async.com.br/faq/pygtk/ >> >> > > > > -- > Please visit dimitri's website: www.serpia.com <http://www.serpia.com> I can confirm this (mis)behaviour with matplotlib 0.80 and gtk+/pygtk 2.6. I had wanted to look into this matter, but didn't yet have time to do it. A simple guess would be that the expose-event is not handled properly by the GTK backend. I noticed the problem when I put a menu-bar over a matplotlib GTK Canvas. When you leave an opened menu, the menu will not disappear. Niklas.
[...] >> On 5/31/05, *John Gill* <jn...@eu... >> <mailto:jn...@eu...>> wrote: >> >> I think this might be a matplotlib issue. >> >> I've been having some refresh issues with matplotlib since >> switching to 2.6. In particular I've noticed that if I put my >> mouse over the toolbar and let a tooltip pop up the canvas does >> not get repainted. >> >> Up to now I'd been assuming this problem was isolated to me (I use >> ratpoison as a window manager, which can confuse some apps). >> >> I've cc'ed the matplotlib list in case anyone can throw some light >> on this. >> >> John >> [...] > I can confirm this (mis)behaviour with matplotlib 0.80 and gtk+/pygtk > 2.6. I had wanted to look into this matter, but didn't yet have time > to do it. A simple guess would be that the expose-event is not > handled properly by the GTK backend. > > I noticed the problem when I put a menu-bar over a matplotlib GTK > Canvas. When you leave an opened menu, the menu will not disappear. > > Niklas. > I have started looking at the code and did not quite understand what I found: backends/backend_gtk.py has a class FigureCanvasGTK. Its method 'expose_event' is responsible for redrawing. In the situation I described, when I leave an opened menu that overlaps the graph, the expose_event is properly called, but the widget is not redrawn. If DBL_BUFFER is set (which it is), the widget is only redrawn, if self._draw_pixmap is set to True. Of course, this variable is not set to True when GTK closes a menu but only when matplotlib requests a redraw. So, in conclusion, no redraw happens. After consulting the PyGTK reference I tried to reactivate double buffering, which is turned of in the backend_gtk.py by the command self.set_double_buffered(False) I wonder why you set this? Do you want to provide your own double buffering? Why? If you set this value to True, everything will be fine. Best regards, Niklas Volbers.
Yes, this could could very well be a matplotlib issue. I will try to do som= e=20 tests, thanks for cc'ing it to the matplotlib list. Dimitri On 5/31/05, John Gill <jn...@eu...> wrote: >=20 > I think this might be a matplotlib issue. >=20 > I've been having some refresh issues with matplotlib since switching to= =20 > 2.6. In particular I've noticed that if I put my mouse over the toolbar= =20 > and let a tooltip pop up the canvas does not get repainted. >=20 > Up to now I'd been assuming this problem was isolated to me (I use=20 > ratpoison as a window manager, which can confuse some apps). >=20 > I've cc'ed the matplotlib list in case anyone can throw some light on=20 > this. >=20 > John >=20 > dimitri pater wrote:=20 >=20 > Hello, > I upgraded to PyGTK 2.6 from 2.4 . Now, when I switch from page 2 on a=20 > Gtk.Notebook back to page 1, page 1 still shows some elements from page 2= =20 > (it is not refreshed, just some parts). Both pages contain graphs created= =20 > with Matplotlib. I never had problems like this with 2.4... > Any clues somebody? If necessary, I will attach the source files. >=20 > Best regards, > Dimitri >=20 > ------------------------------ >=20 > _______________________________________________ > pygtk mailing list py...@da... > http://www.daa.com.au/mailman/listinfo/pygtk > Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/ > =20 > =20 --=20 Please visit dimitri's website: www.serpia.com <http://www.serpia.com>