-- Get the input of the selected tool
myMaster = tool
myMasterName = myMaster:GetAttrs().TOOLS_Name

-- some masks don't have the full set of controls. So for now, let's just exclude them:
myOddities={WandMask = true, BitmapMask =true, PaintMask = true}

if not string.find (myMaster:GetAttrs().TOOLS_RegID, "Mask") then
	print("This script should be run on a masks only. Exiting.")
	do return end
end

dlg = comp:AskUser("Connect Upstream Mask Controls", {
	{ "cLevel", "Checkbox", Name = "Level", Default = 0},
	{ "cSoftEdge", "Checkbox", Name = "SoftEdge", Default = 0},
	{ "cBorderWidth", "Checkbox", Name = "Border Width", Default = 0},
	{ "cCenter", "Checkbox", Name = "Center", Default = 0},
	{ "cSize", "Checkbox", Name = "Size", Default = 0},
	{ "cXRot", "Checkbox", Name = "X Rotation", Default = 0},
	{ "cYRot", "Checkbox", Name = "Y Rotation", Default = 0},
	{ "cZRot", "Checkbox", Name = "Z Rotation", Default = 0}
})

if dlg then

comp:StartUndo("SE MaskConnect")

myStackTool = myMaster

while myStackTool.EffectMask:GetConnectedOutput() do
	myTool = myStackTool.EffectMask:GetConnectedOutput():GetTool()

	if not myOddities[myTool:GetAttrs().TOOLS_RegID] then
		if dlg.cLevel == 1 then
			myTool.Level:SetExpression(myMasterName..".Level")
		end
		if dlg.cSoftEdge == 1 then
			myTool.SoftEdge:SetExpression(myMasterName..".SoftEdge")
		end
		if dlg.cBorderWidth == 1 then
			myTool.BorderWidth:SetExpression(myMasterName..".BorderWidth")
		end
		if dlg.cCenter == 1 then
			myTool.Center:SetExpression(myMasterName..".Center")
		end
		if dlg.cSize == 1 then
			myTool.Size:SetExpression(myMasterName..".Size")
		end
		if dlg.cXRot == 1 then
			myTool.XRotation:SetExpression(myMasterName..".XRotation")
		end
		if dlg.cYRot == 1 then
			myTool.YRotation:SetExpression(myMasterName..".YRotation")
		end
		if dlg.cZRot == 1 then
			myTool.ZRotation:SetExpression(myMasterName..".ZRotation")
		end
	else
		print("Skipping Tool: "..myTool:GetAttrs().TOOLS_Name..". Currently unsupported type.")
	end
	
	myStackTool = myTool
end
comp:EndUndo(true)

else

print("You cancelled the execution. Should we talk about it?")

end