mouseEnter-Leave conundrum

[Devin Asay]

On May 14, 2007, at 3:01 PM, J. Landman Gay wrote:

> J. Landman Gay wrote:
<snip>
>
> I just tried it with multiple fields and graphics. You need this  
> version:
>
> local sObj
>
> on mouseEnter
>   if the name of the target contains "graphic" then
>     if sObj <> "" then
>       put last char of of the short name of sObj into tNum
>       hide fld ("field"&tNum)
>     end if
>     put the name of the target into sObj
>   end if
> end mouseEnter
>
> on mouseMove x,y
>   if sObj = "" then pass mouseMove
>   put last char of of the short name of sObj into tNum
>   if x,y is not within the rect of sObj then
>     hide fld ("field"&tNum)
>     put "" into sObj
>   else
>     show fld ("field"&tNum)
>   end if
> end mouseMove
>
> I'm afraid you do lose the fine distinction between "the rect" of  
> the graphic and its actual outline, but the behavior comes close to  
> what you want I think.

In turns out all you have to do is use the within() function. That  
looks at the actual outline of the graphic instead of the rect. I  
didn't realize until today that the 'is within' operator and the  
'within()' function have this subtle difference. Very cool.

Devin

Devin Asay
Humanities Technology and Research Support Center
Brigham Young University