CGTalk - One Issue of Building Panel By Creating Class

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Jausn

08-30-2010, 06:28 AM

Hi, guys. I want to make a Panel to do something.
This is my Test PyPanel created using Class:

import nuke
import nukescripts

class testPyPanelClass(nukescripts.PythonPanel):
def __init__(self):
nukescripts.PythonPanel.__init__(self, 'Test PyPanel', 'testPanel')

self.fileTypeEnu = nuke.Enumeration_Knob('fileType', 'File Type', ['mov', 'jpeg', 'targa'])
self.movCodecTypeEnu = nuke.Enumeration_Knob('movCodecType', 'Mov Codec Type', ['H264', 'Photo - JPEG'])
self.setRawBl = nuke.Boolean_Knob('setRaw', 'Raw Data')

self.addKnob(self.fileTypeEnu)
self.addKnob(self.movCodecTypeEnu)
self.addKnob(self.setRawBl)

def knobChanged(self, knob):
if knob == self.fileTypeEnu:
fileType = self.fileTypeEnu.value()
writeNode = nuke.selectedNode()
writeNode['file_type'].setValue(fileType)

if knob == self.movCodecTypeEnu:
movCodecType = self.movCodecTypeEnu.value()
writeNode = nuke.selectedNode()
if movCodecType == 'H264':
writeNode['codec'].setValue('avc1')
writeNode['quality'].setValue('High')
if movCodecType == 'Photo - JPEG':
writeNode['codec'].setValue('jpeg')
writeNode['quality'].setValue('High')

if knob == self.setRawBl:
writeNode = nuke.selectedNode()
if self.setRawBl.value() == True:
writeNode['raw'].setValue(True)
if self.setRawBl.value() == False:
writeNode['raw'].setValue(False)

# add it on panel
def addPanel():
return testPyPanelClass().addToPane()

menu = nuke.menu('Pane')
menu.addCommand('Test PyPanel', addPanel)

When I changed the write node's file_type property with my Panel, its related Options didn't show up so I can't set the quality of mov or jpeg as you can see the attached picture.

http://www.vfxtalk.com/forum/attachment.php?attachmentid=10359

Where's my problem?

DavidHarter

01-07-2011, 04:04 PM

i have the same problem! have you found any solutions?

Cheers

Jausn

01-10-2011, 03:59 AM

i have the same problem! have you found any solutions?

Cheers

I haven't found any solution.
The only thing I can do is not to wrap the code into a class.

You can try this method.

alkali22

01-11-2011, 05:49 AM

I believe this is a consequence of Nuke's known limitation that callbacks cannot trigger other callbacks. Your Panel's knobChanged callback is running code that would ordinarily trigger a knobChanged callback on the Write if it was done in a standard script block or through the GUI. The second callback would then show the codec- or type-specific knobs, but since callbacks don't chain, the call to expose these knobs never fires.

beaker

01-17-2011, 10:42 PM

Why not just make your own custom write node instead or set defaults for the write node?

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01-17-2011, 10:42 PM

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