Setting hidden of lines very slow

Tom Glod tom at makeshyft.com
Sat Dec 1 21:16:49 EST 2018


So the first form populates the field only once....since its a single
command so no other states of the field will exist.

Makes perfect sense.

Thanks

On Sat, Dec 1, 2018 at 7:45 PM Richard Gaskin via use-livecode <
use-livecode at lists.runrev.com> wrote:

> Tom Glod wrote:
>
>  > Can someone explain the seemingly extraordinary performance
>  > improvement in using apparently its "split second" vs "over a minute"
>  >
>  > set the hidden of line 1 to - 1 of field 1 to false
>  >
>  > vs.
>  >
>  > repeat with i = 1 the number of lines of fld 1
>  >       set the hidden of line i of fld 1 to false
>  > end repeat
>  >
>  > it doesn't seem like the loop would be the bottleneck here, but rather
>  > the work on the field itself....but obviously, I know nothing about
>  > this engine
>
> Think about all the steps a computer needs to take to render text in a
> field.
>
> Multiply that by the number of lines...
>
> --
>   Richard Gaskin
>   Fourth World Systems
>   Software Design and Development for the Desktop, Mobile, and the Web
>   ____________________________________________________________________
>   Ambassador at FourthWorld.com                http://www.FourthWorld.com
>
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