Bug in undo or?

[Mads Juul]

I have made this script to break exposures on all layers that is not locked

Code: Select all

PARAM none
tv_LayerCurrentID
curLayer = result
tv_layerGetImage
curImage = result
tv_UpdateUndo
tv_undoOpenStack
run = 1
pos = 0
WHILE run
	tv_LayerGetID pos
	id = result
	IF CMP(id,"none")
		run =0
		tv_layerSet curLayer
	ELSE
		tv_layerlock id
		IF CMP("On",result)!=1
			tv_layerSet id
			tv_exposurebreak curImage
		END
	END
	pos =pos+1
END
tv_undoCloseStack  "exposuresBreakLayers"

It works as expected unless the current layers is an locked layer or the current frame is after or before the start/end of the current layer. then when I press undo I go back to where I was before the script runs but I suddenly change layer??
It also did this before i put tv_updateundo into the script. Can i do something to prevent this undesired behaviour?
I guess it's because changind layers is not part of undo? But still I would like to go back to the same layer Before the Script was run even though I'm not on a locked layer.
_mads

[Hervé]

Congratulation, you find a bug in the cmd tv_exposurebreak if the position is not in the layer.