I played around with something similar to dump the viewer's GL texture to a
file. The ugliest part is grabbing the widget you want, as the hierarchy of
widgets in the UI will be completely different depending on the the Nuke
layout. I haven't tried all the tricks in the book, but at this point, I
think the only way to grab to the one you want is to recurse through the
object hierarchy until you find the one you want:
from PySide import QtGui
def findDagWidget():
stack = QtGui.qApp.topLevelWidgets()
while stack:
widget = stack.pop()
if widget.windowTitle() == 'Node Graph':
# You should probably be a little safer with this return, but
the actual DAG widget
# seems to be here consistently... if not, it should be the only
child of 'widget'
# that's a QWidget instance.
return widget.children()[-1]
stack.extend(c for c in widget.children() if c.isWidgetType())
Also, in the case of Viewer widgets, any layout changes destroy the
underlying C++ object. This may not be the case with the DAG, since I think
there can only be one per group, but I would definitely play with that.
Also, if you're just installing an event handler, that shouldn't be much of
an issue.
I've tested simple keypress and PaintEvent handlers, and both seem to work
fine. I can send along the basic code if you're interested, but I imagine
you're probably familiar with what you want to do at that point.
Anyway, hope this helps some.
-Nathan
-----Original Message-----
From: Ben Dickson
Sent: Thursday, March 14, 2013 2:07 AM
To: Nuke Python discussion
Subject: [Nuke-python] PySide painting over nodegraph?
Almost certain the answer is "nope", but:
Is it possible to do custom drawing on the node graph? In the same way
you can have a PySide knob in a node or Panel, and implement a custom
'paint' method for that knob
I'm looking for some hacky method of doing this (since there's no
supported way), maybe along the lines of an eventFilter to intercept the
paint event from the nodegraph widget. Any ideas?
--
ben dickson
2D TD | ben.dick...@rsp.com.au
rising sun pictures | www.rsp.com.au
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