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From "Sandro Martini (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIVOT-838) TextArea - removed text event, unable to retrieve removed text
Date Mon, 20 Feb 2012 14:24:31 GMT

    [ https://issues.apache.org/jira/browse/PIVOT-838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13211863#comment-13211863
] 

Sandro Martini commented on PIVOT-838:
--------------------------------------

some discussion here: 
http://apache-pivot-users.399431.n3.nabble.com/2-0-1-TextArea-ParagraphListener-textInserted-method-question-td3753868.html

                
> TextArea - removed text event, unable to retrieve removed text
> --------------------------------------------------------------
>
>                 Key: PIVOT-838
>                 URL: https://issues.apache.org/jira/browse/PIVOT-838
>             Project: Pivot
>          Issue Type: Bug
>          Components: wtk
>    Affects Versions: 2.0.1
>            Reporter: Imbue Lab
>            Assignee: Noel Grandin
>            Priority: Minor
>             Fix For: 2.0.2
>
>
> There is no possibility to get information about text removed from TextArea component.
In the ParagraphListener there are two methods:
> - void textInserted(Paragraph paragraph, int index, int count) - this one is OK, information
about inserted text can be retrieved from the paragraph's CharSequence (using getCharacters()
method), there is everything what is needed: index and count
> - void textRemoved(Paragraph paragraph, int index, int count) - here the problem begins,
paragraph received as parameter has no text that was removed because it has been already removed.
> Of course one can make a deep copy of paragraph's characters (every time it changed)
and search for removed text using previously created copy, but is it really too expensive.
> I checked the source and in the TextArea.Paragraph class in the method void removeText(int
index, int count) there is a line where real text removal operation takes place: characters.delete(index,
index + count), but removed text is not stored or passed to any of the listeners. 

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