Implementing UNDO
Klaus major-k
klaus at major-k.de
Fri May 21 09:19:12 EDT 2021
Hi Craig,
> Am 21.05.2021 um 15:12 schrieb Craig Newman via use-livecode <use-livecode at lists.runrev.com>:
>
> Klaus.
>
> What are you doing here on the dark side??
Oh, come on!
> Do you mean something like this, with a field and a button? in the card script:
>
> on textChanged
> set the currentText of this cd to fld 1
> end textChanged
>
> on undoText
> get the currentText of this cd
> delete the last word of it
> set the text of fld 1 to it
> set the currentText of this cd to it
> end undoText
>
> and in the button:
> on mouseUp
> undoText
> end mouseUp
OK, something like this, but for graphics, images etc., too. 8-)
Some general hints will be OK.
Except for TEXT I don't have a clue yet.
Maybe store "the properties of xyz" and re-apply them when the user hits CMD-Z?
> Craig
>
>> On May 21, 2021, at 7:48 AM, Klaus major-k via use-livecode <use-livecode at lists.runrev.com> wrote:
>>
>> Hi friends,
>>
>> any hints on how to implement some UNDO mechanism into a LC standalone?
>> The stack(s) in question will not only handle TEXT...
Best
Klaus
--
Klaus Major
https://www.major-k.de
https://www.major-k.de/bass
klaus at major-k.de
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