bug#13887: 24.3; doc-view will render blurry images when image-magick is available

[E Sabof <esabof@gmail.com>]

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Further evidence suggests that the "t taking precedence" version is wrong.
It's more probable the the precedence is determined by the order of
overlays in some C data-structure.


On Mon, Mar 11, 2013 at 11:41 PM, E Sabof <esabof@gmail.com> wrote:

> The overlay with t value has precedence over other overlays. If the
> problem occurs, I can run the following function, and it will get fixed in
> existing windows. However if I create a new window, it will show only text.
> If I press + in that window, a new overlay will be created. Perhaps the t
> overlay was meant to be the default, and someone misunderstood it's effect.
>
> (defun 13887-fix-helper1 ()
>   (interactive)
>   (let* ((ovs (overlays-at (point)))
>          (ov-t (find-if (lambda (ov) (eq (overlay-get ov 'window) t))
>                         ovs)))
>     (when ov-t (delete-overlay ov-t))))
>
> Here is one more helper function which might be useful.
>
> (defun 13887-own-overlay-present-p ()
>   (interactive)
>   (let* ((ovs (overlays-at (point))))
>     (find-if (lambda (ov) (eq (overlay-get ov 'window)
>                               (selected-window)))
>              ovs)))
>

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