QuickKeys.py

# --------------------------------------------------------------
#  QuickKeys.py
#  Version: 2.0.0
#  Last Updated: October 18th, 2018
# --------------------------------------------------------------


# --------------------------------------------------------------
#  USAGE:
#
#  Press 'Ctrl+,' to set an 'on keyframe' (current frame on, previous frame off).
#  Press 'Ctrl+.' to set an 'off keyframe' (current frame on, next frame off).
#  Press 'Ctrl+/' to set an 'on/off range', with control to fade over a number of frames
# --------------------------------------------------------------


import nuke

def qk(type):

    n = nuke.selectedNode()
    knob = "mix"
    curFrame = nuke.frame()

    dict = {'Switch':'which','Dissolve':'which','Roto':'opacity','RotoPaint':'opacity'}

    for x in dict:
        if n.Class() == x:
            knob = dict[x]


    if type == "range":

        p = nuke.Panel( 'Quick Keys' )
        p.addSingleLineInput('First Frame', '1001')
        p.addSingleLineInput('Last Frame', '1099')
        p.addSingleLineInput('Fade', '0')

        if not p.show():
            return

        inFrame = float(p.value('First Frame'))
        outFrame = float(p.value('Last Frame'))
        fadeValue = float(p.value('Fade'))

        n[knob].setAnimated(0)
        animKnob = n[knob].animations()[0]
        animKnob.setKey(inFrame,1)
        animKnob.setKey((inFrame-1-fadeValue),0)
        animKnob.setKey(outFrame,1)
        animKnob.setKey((outFrame+1+fadeValue),0)


    elif type == "on":

        n[knob].setAnimated(0)
        animKnob = n[knob].animations()[0]
        animKnob.setKey(curFrame, 1)
        animKnob.setKey((curFrame-1),0)


    elif type == "off":

        n[knob].setAnimated(0)
        animKnob = n[knob].animations()[0]
        animKnob.setKey(curFrame, 1)
        animKnob.setKey((curFrame+1),0)

    else:
        return


nuke.menu('Nuke').addCommand('Edit/Quick Keys/On', 'quickKeys.qk("on")', "meta+,")
nuke.menu('Nuke').addCommand('Edit/Quick Keys/Off', 'quickKeys.qk("off")', "meta+.")
nuke.menu('Nuke').addCommand('Edit/Quick Keys/Range', 'quickKeys.qk("range")', "meta+/")