[Okular-devel] Review Request 109632: Annotation eraser

Peter Grasch me at bedahr.org
Thu Mar 21 01:26:45 UTC 2013


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http://git.reviewboard.kde.org/r/109632/
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(Updated March 21, 2013, 1:26 a.m.)


Review request for Okular.


Description (updated)
-------

Prerequisites: Please read till the end!

This introduces a new annotation tool: "Eraser".

The eraser primarily erases other annotations that it comes into contact with (shapes, lines, highlights, etc.).

However, ink annotations are treated more like a real eraser: Existing paths are split and unaffected parts are preserved.
This is what it looks like: http://bedahr.org/eraser.ogv


Example tool configuration for your tools.xml (not included in patch):

<tool id="15" name="Eraser" pixmap="tool-eraser-okular">
   <tooltip>Eraser</tooltip>
   <engine type="Eraser" />
   <shortcut>7</shortcut>
</tool>

The eraser builds on the work for the outline selection proposed in review request #109627. Please apply that patch before this one.


Diffs
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  ui/pageviewannotator.cpp 7bd7496 

Diff: http://git.reviewboard.kde.org/r/109632/diff/


Testing
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While it worked fine for the few PDFs I threw at it on this relatively powerful machine, it was pointed out to me in #okular, that calls to modifyPageAnnotation are very expensive as poppler has to re-draw the pdf (with the annotations) for every change.
I hope we can resume the discussion about possible improvements here.


Thanks,

Peter Grasch

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