[Development] Rotating JPEG images by default

André Somers andre at familiesomers.nl
Thu Apr 23 13:34:43 CEST 2015


Alberto Mardegan schreef op 23-4-2015 om 13:20:
> On 04/23/2015 01:36 PM, Gunnar Sletta wrote:
>> 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.
> Also the above causes some pain. Whether we go for opt-in or opt-out of
> the automatic rotation, please have a static method to globally specify
> whether automatic rotation is desired or not.
>
> We should have QML Image show the JPEGs with the correct rotation
> without requiring special flags or custom image readers.
>

What is the problem with using

Image {
    source:  "someImage.jpg"
    autorotate: true
}

Again: note that QImage != QML Image

I don't like globals if they can be avoided. In this case, I think they can.

André



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