Looking for more info on hScroll

[Wouter]

Re: Looking for more info on hScroll
	• 	From: Trevor DeVore
	• 	 Subject: Re: Looking for more info on hScroll
	• 	 Date: Sat, 31 Jul 2004 12:18:08 -0700


--snip


>  I did some more tests and I think the design of my slider is what is 
> causing the problem. I added a call which prints out the value of 
> formattedWidth - width - margins - borderWidth and as my custom group 
> slider got to the end of the group the value increased. My custom 
> slider which is part of the group itself was extending past the 
> previous extreme right side of the group and adding a couple of more 
> pixels to the group. Though the formattedHeight increases the highest 
> value of hScroll for the group doesn't seem to be updated. I will keep 
> fiddling around and see if I can pinpoint exactly what is going on 
> though.
>
>
> Thanks,

Aha you used a custom slider in the group. I thought you used the 
horizontal scrollbar of the group itself.
I bugzilla'ed an extra problem with sliders (bug #1912). May be this 
applies also in your case.
Be careful with the value of the thumbpos if the numberformat is not 
used.
You *see* ints but internally it still remain decimals which are 
trunc-rounded in a weird way when needed in for example a repeat loop.

Test with 2 sliders endvalue 10

on mouseUp
   put the thumbpos of sb 1 into t1
   put the thumbpos of sb 2 into t2
   put the thumbpos of sb 1 + the thumbpos of sb 2 into t3
   put  t1 + t2 into t4
   repeat with i = 1 to t1
     add 1 to x
   end repeat
   repeat with i = 1 to t2
     add 1 to x
   end repeat
   repeat with i = 1 to t4
     add 1 to y
   end repeat
   put t1 &cr& t2 &cr& t3 &cr& t4 &cr& x &cr& y
end mouseUp

And see the values produced with the sliders in different positions 
(without changing the visible thumpos value)

Greetings,
WA