[Digikam-devel] [digikam] [Bug 296651] digiKam takes very long to display the embedded JPEG in a raw file

[Gerry Patterson]

https://bugs.kde.org/show_bug.cgi?id=296651

--- Comment #8 from Gerry Patterson <thedeepvoice1 at yahoo.co.uk> ---
Hello,

I did some digging, and found that the hueristics were using the entire desktop
when determining the size as a opposed to screen size.  When running a dual
headed system, this pretty much ensures that you will always be forced to use
the half-sized preview with raw images that don't have quite large previews. 
In this case the raw image preview was 1536x1024 on 1680x1050 monitors.  That
seems a pretty good fit on one screen, but when dual headed, now it is
3360x1050.  There is a hardlimit of 2560 (WQXGA), but you have to be within 80%
of that--2048--otherwise, you are forced into a half size preview.

I am pretty certain the intent was to use a single screen size and not the sum
of all of the screen widths together.  As it is, even through the embedded
preview is almost the same size as the screen (within a 100 pixels) it always
forcing to the half size raw preview.

Attached is a patch to the current trunk which queries the default screen size
instead of the entire desktop.

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