Hm, this is not easy..
https://gist.github.com/dbr/7131354 is as far as I could get,
..but two problems:
If you close the widget, you are left with an empty panel with no
widgets. I couldn't find a way to access the PythonPanel in order to
close it (closest I found was nuke.thisPane() or nuke.thisNode(), but nope)
Second problem is you need to set _testwidget_instance=None when the
panel is closed, but as discussed in the the "pyqt inside a python panel
doesn't get close signal" thread above, hideEvent works but closeEvent
is never called
Writing your tool as a nukescripts.PythonPanel subclass might give
enough flexibility, your PySide UI would be added as a PyCustom_Knob (as
done in the panels.py code)
On 24/10/13 14:14, Frank Rueter wrote:
hm, every time I call a registered panel the first time, I find two
objects with the respective ID e.g.:
<PySide.QtGui.QWidget object at 0x31c95f0> <type 'PySide.QtGui.QWidget'>
<__main__.TestWidget object at 0x31c9128> <class '__main__.TestWidget'>
If other instances are open, I am getting more QWidgets listed, e.g.:
<__main__.TestWidget object at 0x2338128> <class '__main__.TestWidget'>
<PySide.QtGui.QWidget object at 0x233ec20> <type 'PySide.QtGui.QWidget'>
<PySide.QtGui.QWidget object at 0x2341f80> <type 'PySide.QtGui.QWidget'>
How can I now check which ones to close, because two of these belong to
the panel I need to keep?!
Here is my test code which might be flawed:
http://pastebin.com/bp7w1BnP
I might not be seeing the trees for the woods here...
On 24/10/13 15:12, Frank Rueter wrote:
Cool, thanks Johan. That looks much simpler. Will give it a go as well...
On 24/10/13 15:10, Johan Aberg wrote:
If you make sure your widgets are using setObjectName(), you could
possibly look up the widgets by name like so to make sure only on
instance is running:
for widget in QtGui.QApplication.allWidgets()
name = widget.objectName()
if 'myWidgetName' in name:
print name, type(widget)
I think the registered panel will be of class<class
'PyQt4.QtGui.QDialog'>
and the widget the PyCustom_Knob is pointing to<class
'PyQt4.QtGui.QWidget'>
As far as I can see, the panel and widget object will be destroyed
when the panel is closed.
Johan
On 24/10/13 13:40, Frank Rueter wrote:
Hi all,
has anybody had success with enforcing only one instance of a PySide
widget when it's registered as a panel?
My app writes data to disk upon certain events and loads that data
again through the widget's constructor. So I need to make sure that
only one instance is open at any given time, otherwise I'm running
the risk of losing/corrupting that data.
Any ideas?
Cheers,
frank
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--
ben dickson
2D TD | ben.dick...@rsp.com.au
rising sun pictures | www.rsp.com.au
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