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From "Imbue Lab (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PIVOT-838) TextArea - removed text event, unable to retrieve removed text
Date Wed, 01 Feb 2012 15:26:58 GMT
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


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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