Comments on: Writing a Custom Widget Using PyGTK

By: Stuart Jansen

Stuart Jansen — Tue, 03 Nov 2009 18:42:30 +0000

To get the code to work with pygtk 2.14, I had to add
self.allocation = allocation
to do_size_allocate().

By: Philip Stark

Philip Stark — Sun, 02 Aug 2009 14:35:19 +0000

I fixed your example. the problem was that “self.allocation” was gtk.gdk.Rectangle(-1,-1,1,1) which made the do_expose_event only repaint a very small area outside the actual widget. I will send you the updated code as soon as I get home.
or just a diff, whatever you’d prefer
It was my first contact with pyGTK and i liked it a lot. your tutorial was very helpful (although i mainly just read the comments in the code )

(additionally, i changed the code to load the picture from a file. but that was a very small change)

By: selsine

selsine — Mon, 19 Jan 2009 21:05:33 +0000

Great work Pietro, thanks for the information. I’ll keep my eye on that bug and update the code once it is resolved. IF I find the time I’ll try to find a suitable work around.

By: Pietro Battiston

Pietro Battiston — Tue, 23 Dec 2008 00:46:17 +0000

I filed a bug: http://bugzilla.gnome.org/show_bug.cgi?id=565405

By: Pietro Battiston

Pietro Battiston — Mon, 22 Dec 2008 22:43:14 +0000

I tested this in OpenSolaris too, same behaviour: no “motion” event is catched and no star is drawn until the window is not resized.

By: Pietro Battiston

Pietro Battiston — Mon, 22 Dec 2008 09:50:45 +0000

I can confirm what Karl wrote: I tested the source on both Hardy and Intrepid, on two different computers, and until the widget is resized one can move the mouse over the window and/or click, but “motion_notify_event” will never be called.

Once the widget is resized, _every_ mouse motion (not only mouse first entering the allocation area!) triggers motion_notify_event, and notice that every event is a hint (the “else” clause in “motion_notify_event” is never called at all).

I had problems with anoter app (I’m writing) which doesn’t catch motion hints properly.

By: Python and Gtk: PyGTK | lonerunners.net

Python and Gtk: PyGTK | lonerunners.net — Sun, 26 Oct 2008 11:31:21 +0000

[...] Writing a custom widget using pygtk [...]

By: Karl

Karl — Wed, 10 Sep 2008 19:20:15 +0000

Hmm doesn’t seem to be working for me. I followed the tutorial through and I just got a blank window so I downloaded the source and it’s exactly the same. When I resize the window 5 stars appear but I cannot interact with them at all. I’m running Ubuntu Hardy.

By: openfish

openfish — Tue, 20 May 2008 19:10:50 +0000

all ur tuts rule this site is brill if a littel small so keep up the brilliant work!!
lol

i know this is slighly off topic but its not that far off

is there a maxemum number of times u can
.connect(”a_event”,self.aeventhandle)

self.DrawArea = gtk.DrawingArea()
self.DrawArea.connect(”expose_event”, self.expose) # this works well
self.DrawArea.connect(”configure_event”,self.conf) # and this one
self.DrawArea.connect(”button_release_event”,self.moton) # but this dosnt do a thing
self.DrawArea.connect(”motion_notify_event”,self.moton) # nor this one

p.s they will eventually point to different places!! and are in side a class mydisplay(gtk.VBox ): in side a vbox in a window most of the program works v well but i want to add a bit of polish and hit this wall when i added the connect’s
thank u very much
any ideas

By: shikhar

shikhar — Thu, 06 Mar 2008 03:51:24 +0000

thanks, i am new to pygtk, this was a great tutorial