Field highlited

[Bob Sneidar]

<sigh>
Untested

This in a frontScript: 

on openField
   put long id of the target into pField
   set the selection to the savedChunk of pField — if you want to restore the last selection
   Set the savedChunk of pField to empty
   pass openField
end openField

on exitField
   put the long id of the target into pField
   set the savedChunk of pField to the selectedChunk
   pass exitField
end exitField

Bob S


> On Jul 13, 2023, at 9:50 AM, William Prothero via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Folks,
> A possible strategy is to change the color of a line in a field, when it is selected. There would need to be a script that could simply returns the content of a line of a specified color, changes the color to "unselected", or whatever your need requires. You could have multiple lines selected, and other variations as needed.
> 
> Just thinking.
> Bill
> 
> William A. Prothero, PhD
> Prof Emeritus, Dept of Earth Science
> University of California, Santa Barbara
> 
>> On Jul 13, 2023, at 9:06 AM, Craig Newman via use-livecode <use-livecode at lists.runrev.com> wrote:
>> 
>> Paul.
>> 
>> I think that Bob S. is correct. The change in focus is sort of built into the engine, and a field cannot “remember” such a thing.
>> 
>> A fun kludge would be to create one or more overlays, however you like those to look, and apply them to the field of interest. These overlays can be managed in terms of their rects, depending on the formatted properties of the hilted line or lines. They can be shown and hidden as well.
>> 
>> I am struggling not to do this just for fun. So you do it, because I bet that the team has bigger fish to fry.
>> 
>> Craig
>> 
>>> On Jul 13, 2023, at 11:27 AM, Bob Sneidar via use-livecode <use-livecode at lists.runrev.com> wrote:
>>> 
>>> I do not see how that could work. In Windows, buttons can have the focus, which means a field would always lose it. 
>>> 
>>> What I do when I need something like this is I save the selection (or selectedChunk or some such thing) as a property of the field upon exitField. You could even put that in a frontScript and reference the target. Then in the field script re-select the text upon enterField. 
>>> 
>>> Bob S
>>> 
>>> 
>>>>> On Jul 12, 2023, at 3:21 PM, Paul Dupuis via use-livecode <use-livecode at lists.runrev.com> wrote:
>>>> 
>>>> I have a LC9 field object - just a scrolling field (not a list field) with a lot of text. The user selects some text and then click a button near the field. I want the selection to remain highlighted, but when you click outside the field the highlight goes away.
>>>> 
>>>> Any simple solutions to this. Some property I am just blanking on? In another app, I've used the "selectionChanged" message to (1) set the background color of the selection to a highlight color and store the start and end characters as custom properties of the field. I'm hoping there is an easier way I am just missing.
>>>> 
>>>> OR
>>>> 
>>>> There should be a feature enhancement: set the preserveHighlight of field X to true
>>>> That keeps the highlighted selection unless or until you make a new one in that field
>>> 
>>> 
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