[Digikam-devel] Experimental : image preview on main interface

Mikolaj Machowski mikmach at wp.pl
Thu Jun 15 21:37:43 BST 2006

Dnia czwartek, 15 czerwca 2006 00:19, Caulier Gilles napisaƂ:
> The patch is here :
> http://digikam3rdparty.free.fr/misc.tarballs/preview.patch


> - don't use the embedded preview from JPEG/TIFF/PNG files available in
> Makernote metadata. Canon, Nikon, Minolta, etc, record a small preview
> image in Camera Settings. This is must be used instead to load the whole
> image. In fact, Exiv2 need to be improved for that. i'm currently
> working with Andreas about this subject.

Rather not. Preview for JPEG is very small image, useless for purpose of
this functionality (cannot say about other formats).

This functionality already speeds up loading of single
image comparing to ImageEditor, and moving between images (JPEGs) is
slightly faster than in image editor. However quality of zooming(?) is
lower in this preview, for me this is acceptable.

> Please don't ask me to create a very advanced new feature for 0.9.0. I
> have not commited this code in svn because i'm not sure if this is the
> right way to implement an image previewing. Also to finalize properlly
> this code, we need more time, and i would delay this implementation
> later 0.9.0.

Few comments:

- images smaller than preview area are forcibly scaled up to fill it
- some kind of context menu would be useful, proposed actions:

  - Album view (F3)
  - Edit       (F4)
  - Open in    >
  - Assign tag >
  - Remove tag >
  - Rating     >
  - Change name...

- some kind of background (important especially for horizontal images)?
- with this functionality navigation in main window is more important,
  please make navigation panel with bigger icons (file name can be moved
  to new line) and/or allow for key navigation through images in main


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