[Development] Rotating JPEG images by default

[Gunnar Sletta]

I think we should strive to not introduce regressions on purpose. Hence:
 - Revert the behavioral change in 5.4 which adds rotation to JPEGs
 - Have opt-in rotation in QImageReader.
 - Keep TIFF rotation as it is (and change it to the Qt-wide default for Qt 6)

Anything else will cause us a lot of pain down the line.

cheers,
Gunnar

> On 23 Apr 2015, at 12:03, Allan Sandfeld Jensen <kde at carewolf.com> wrote:
> 
> On Thursday 23 April 2015, Alberto Mardegan wrote:
>> On 04/23/2015 04:53 AM, Konstantin Ritt wrote:
>>> We already have a complete solution -
>>> https://codereview.qt-project.org/110685
>> 
>> That looks good.
>> 
>>> All we need now is to fix the behavioral regression introduced in 5.4.
>> 
>> But if I understand the code correctly, the fix above gives developers
>> an option to opt *out* of the automatic rotation, so it will still
>> behave differently than Qt < 5.4, unless the developer updates his app
>> to use the new API.
>> 
>> Which to me is all very good, but I think it's not what you have been
>> suggesting in this thread.
>> 
> It has gone through several iterations, and this is where it is currently at. 
> If there is a consensus to change the defaults the patch can easily be amended 
> again.
> 
> Right now I don't see a consensus though, and personally lean both ways.
> 
> `Allan
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