[Bug 635026] Re: Okular Trim margins doesn't work if paper colour is changed

[Lauri Lyly]

I looked at the code and the reason for this is probably obvious (can't
be totally sure since I don't know in which order things are done here).

The imageBoundingBox function is checking whether the pixels to become
cropped from the margins are white. So, if you set your paper color to
something else, it's simply not going to crop them.

Instead of checking for whiteness, I presume it could check whether it's
the page color.

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Title:
  Okular Trim margins doesn't work if paper colour is changed

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