Thanks to Devin, Terry and Matt
I tweaked Devin’s code a bit, and went with a global variable as otherwise it
flashes and gives you an epileptic seizure!
But, this works great:
on mouseWithin — seems to work better than mousemove
global PastWhichLine
if pastWhichLine is empty then
put the mouseLine into pastwhichLine
end if
put the mouseline into tThisLine
if tThisLine <> PastWhichLine then
set the backgroundColor of pastwhichline to empty
set the backgroundColor of tThisLine to (220,220,250)
put tThisLine into PastWhichLine
end if
end mouseWithin
Thanks folks!
マーク.. (Apple mail has a bug that automatically changes my name to Japanese and
there is no way to stop it… sigh…)
>
>> On Mar 4, 2016, at 1:08 PM, Mark Mitchell <cowh...@mac.com> wrote:
>>
>> (Sorry Heather! I?m sending this message again from the ?proper? account..)
>>
>> I?m not sure how long it has been around, but I have just discovered the
>> ?mousewhithin? message combined with the mouseline() function? Awesome! So,
>> for those of you who don?t know, the ?mousewithin? message is sent to a
>> field periodically (5 times a second?) whenever the mouse is inside that
>> field.
>>
>> Then, the mouseline function returns whatever line of that field the mouse
>> is currently hovering over. I am currently using this to warn folks if they
>> have too many characters per line. And that works fine.
>>
>> But to make it more intuitive, I want to somehow hilite or indicate the line
>> that the mouse is over in the field, without disturbing the ability to edit
>> that field (copy, paste, type stuff) with ease.
>>
>> I have tried a few different ways of hiliting the line of the field
>> (selecting it, changing the color of the text of it, etc) but any sort of
>> repeat or recursive structure does not work, as the ?mousewithin? message is
>> simply sent far too often for any ?repeat? or recursion to work.
>>
>> Does anyone have any other ideas for highlighting a line in a field that
>> might work under these conditions?
>
> Mark,
>
> Have you tried setting the backgroundColor of the line, something like this:
>
> local sCurrLine
>
> on mouseWithin
> put the mouseline into tThisLine
> if tThisLine <> sCurrLine then
> set the backgroundColor of line 1 to -1 of me to empty
> set the backgroundColor of tThisLine to (220,220,250)
> put tThisLine into sCurrLine
> end if
> end mouseWithin
>
> on mouseLeave
> set the backgroundColor of line 1 to -1 of me to empty
> end mouseLeave
>
> It seemed to work okay here on LC 7.1.2.
>
> Devin
>
> Devin Asay
> Office of Digital Humanities
> Brigham Young University
>
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