mahara-contributors team mailing list archive

[Robert Lyon <robertl@xxxxxxxxxxxxxxx>]

Thinking about this some more we could do the following:

1) Alter the artefact_file_image table and add a column 'orientation'
where we record one of the 4 possible values, 0 (the default), 90, 180,
270

2) On saving/choosing image rotation state, eg 90 deg clockwise we could
record in the artefact_file_image table 'orientation' column as the
preferred orientation of the image

So next time the image is rendered on a page (or wherever) it is shown
in that rotation from original either by:

3a) applying the rotation via css or
3b) running image through a php function to generate a new resized image with that orientation before displaying it.

The advantage of this are:
- Will only deal with images in relating to rotation
- Never touch the original so easier to change orientation choice multiple times
- No need to have 'cancelling' as it will be easy to choose any of the 4 possible rotation choices

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https://bugs.launchpad.net/bugs/1272122

Title:
  Rotate images

Status in Mahara:
  Triaged

Bug description:
  A teacher on MyPortfolio.school.nz said it would be great to be able
  to rotate images once uploaded to Mahara because when kids upload
  photos from mobile devices, they may not have the correct orientation.

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