NSLevelIndicator: How can I change the color (Warning/critical value)?

Scripting Forums AppleScript Studio & Xcode
#1

Hi!
in an ASS application i have a level indicator.
In Interface Builder I can set a warning value and a critical value, which changes the color of the indicator from green to orange to red, if the value is lower.

How can I change the warning value and critical vale during runtime?
Or can I otherwise change the color of a level indicator?

thanks in advance, Spock

#2

Hi Spock,

to set critical and warning values during runtime there is no AppleScript access - you have to use 'call method’s for this. Without having tried I’d say something like this should work:

call method “setWarningValue:” of your Level Indicator with parameter value you want to set
call method “setCriticalValue:” of your Level Indicator with parameter value you want to set

an ‘update’ might be necessary to show the changes.

Unfortunately the class has no method for changing/setting it’s colors. If you want this you’d have to this in a custom subclass of NSLevelIndicator.

D.

#3

Thank you for your reply, but I can´t get it to work.

the AppleSkript name of my Level indicator is “speedRuler”, so I have tried

call method "setWarningValue:" of "speedRuler" with parameter 80

does not work

set temp to control "speedRuler" of window "main"
call method "setWarningValue:" of temp with parameter 80

does not work

I did change the content value of the control. Or did you mean something different, by “an ‘update’ might be necessary to show the changes.”

Do I have to add something to my project?

#4

Hi spock,

I just tried it - updating the view isn’t necessary to have the changes displayed. Here’s what I tried - it works regardlessly here:

	tell control "speedRuler" of window "main"
		set contents to 89
		delay 1
		call method "setWarningValue:" of it with parameter 80
		delay 1
		call method "setCriticalValue:" of it with parameter 85
		delay 1
		set contents to 84
		delay 1
		set contents to 73
	end tell

Hope that helps,

Dominik

#5

Thank you Dominik.
It works fine, as well as my first try

set temp to control "speedRuler" of window "main"
call method "setWarningValue:" of temp with parameter 80

works.
My problem was, that I duplicated a TestButton in InterfaceBuilder, and just gave it a name. I did not notice, that duplicating an object DOES NOT duplicate its EventHandlers and ScriptConnections. (Boy, i consider this to be a severe bug). So my TestButton2 did just nothing at all.

Thanks again for help!