[jira] [Commented] (PDFBOX-3799) Problem in TextPosition's hashCode

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-3799?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16018896#comment-16018896 ] 

ASF subversion and git services commented on PDFBOX-3799:
---------------------------------------------------------

Commit 1795710 from [~tilman] in branch 'pdfbox/trunk'
[ https://svn.apache.org/r1795710 ]

PDFBOX-3799: remove mutable fields from hash calculation

> Problem in TextPosition's hashCode
> ----------------------------------
>
>                 Key: PDFBOX-3799
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-3799
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Text extraction
>    Affects Versions: 2.0.6
>            Reporter: Miro Mannino
>
> Just another side effect related to TextPosition's hashCode
> I am using the hashCode because I want to know the color of each letter. To do this, during the processTextPosition, I save the current graphic state in a map, using the current text position as key. Then, on writeString, I iterate all the text positions and I get the color for each of them though this map.
> Of course would be easier if this information could be saved in the text position. But this is just a desired feature.
> I am discovering that from processTextPosition to writeString sometimes happens that the same textPosition has just a different unicode. In processTextPosition is just a "x" (char 120), but then on writeString the same textPosition the unicode is the x, followed by '̄' (char 772). Everything about the textPosition remains the same: same coordinates, same System.identityHashCode; the only thing that changes is the unicode, which causes the computation of a different hashCode.
> That is giving problem. As workaround I am using now System.identityHashCode instead of the current TextPosition's implementation



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