[digikam] [Bug 344793] New: thumbnail-preview broken for tags and timeline

[Stephan Olbrich]

https://bugs.kde.org/show_bug.cgi?id=344793

            Bug ID: 344793
           Summary: thumbnail-preview broken for tags and timeline
           Product: digikam
           Version: 4.8.0
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Thumbnails
          Assignee: [hidden email]
          Reporter: [hidden email]

If I browse my pictures using tags or the timeline, the thumbnail preview is
often broken.
e.g. not all thumbnails are shown, empty space between thumbnails, thumbnails
change to another picture when hovering with the mouse above them and changing
back when scrolling, album-title bars which should separate images from
different albums are drawn above thumbnails and sometimes disappear when
scrolling.
If I switch to the table view all images are shown correctly.

Reproducible: Always

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=344793

Gilles Caulier <[hidden email]> changed:

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--- Comment #1 from Gilles Caulier <[hidden email]> ---
Can you take some screenshots please ?

Gilles Caulier

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[Stephan Olbrich]

https://bugs.kde.org/show_bug.cgi?id=344793

--- Comment #2 from Stephan Olbrich <[hidden email]> ---
Created attachment 91395
  --> https://bugs.kde.org/attachment.cgi?id=91395&action=edit
empty space where thumbnails should be

I can't capture the more dynamic problems, but here you can see the empty
space, where thumbnails should be.

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[Stephan Olbrich]

https://bugs.kde.org/show_bug.cgi?id=344793

--- Comment #3 from Stephan Olbrich <[hidden email]> ---
Created attachment 91396
  --> https://bugs.kde.org/attachment.cgi?id=91396&action=edit
blue album name bar disappeared

this is mostly the same image, than the one before, just scrolled a bit
different and now the blue bar where the album name and date usually is, is now
missing.
If I move the mouse to where the blue bar should be, it appears. If the mouse
leaves the thumbnail part of the window, then it disappears again.

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[Maik Qualmann]

https://bugs.kde.org/show_bug.cgi?id=344793

Maik Qualmann <[hidden email]> changed:

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--- Comment #4 from Maik Qualmann <[hidden email]> ---
We had in January in Digikam-users a similar report. Does the error like this:
https://www.youtube.com/watch?v=FaIYpzCxYO0&feature=youtu.be
From which camera model the pictures come from?

Maik

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[Stephan Olbrich]

https://bugs.kde.org/show_bug.cgi?id=344793

--- Comment #5 from Stephan Olbrich <[hidden email]> ---
yes it does look similar.
I just checked, when I enable subtree view for albums I get the same effects in
the album view as well.
It seems this happens in all views which show thumbnails from multiple albums.

As in the video, if I switch to "Sort by name" for images everything works as
expected. (I use sort by date as default)

The pictures come from several different cameras/brands even some smartphones,
so I don't think this is related to a camera model.

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[Maik Qualmann]

https://bugs.kde.org/show_bug.cgi?id=344793

--- Comment #6 from Maik Qualmann <[hidden email]> ---
Yes, sort by date is the trigger...

Maik

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[Maik Qualmann]

https://bugs.kde.org/show_bug.cgi?id=344793

--- Comment #7 from Maik Qualmann <[hidden email]> ---
Created attachment 91512
  --> https://bugs.kde.org/attachment.cgi?id=91512&action=edit
imagealbumfiltermodel.patch

The following conditions must be met for this issue:
- Sort images by date
- Group images by album
- Timeline / Dates or album sub-tree enabled
- Albums in the sub-trees with the same date the images with older and newer
date included

It can double album groups are generated that can not be distinguished.
Changes in digikamkcategorizedview.cpp would be no problem.
But I think we do not want a double album groups.

With this patch: If the album date is the same, the album path is used for
sorting.
The group sort order is now used for the albums.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=344793

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Latest Commit|                            |http://commits.kde.org/digi
                   |                            |kam/2eb92f515ebf764f8695acc
                   |                            |acdb2128f12061854
             Status|UNCONFIRMED                 |RESOLVED
   Version Fixed In|                            |4.9.0
         Resolution|---                         |FIXED

--- Comment #8 from Gilles Caulier <[hidden email]> ---
Git commit 2eb92f515ebf764f8695accacdb2128f12061854 by Gilles Caulier.
Committed on 09/03/2015 at 21:32.
Pushed by cgilles into branch 'master'.

apply patch # 91512 from Maik Qualmann to fix album sorting if the album date
is the same : the album path is used.
The group sort order is now used for the albums.
FIXED-IN: 4.9.0

M  +2    -2    NEWS
M  +3    -10   libs/models/imagealbumfiltermodel.cpp

http://commits.kde.org/digikam/2eb92f515ebf764f8695accacdb2128f12061854

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=344793

--- Comment #9 from Gilles Caulier <[hidden email]> ---
Git commit 3cfa54ed3525adacdc1fb640f3d30fe7941dbc8d by Gilles Caulier.
Committed on 09/03/2015 at 21:44.
Pushed by cgilles into branch 'frameworks'.

backport commit #2eb92f515ebf764f8695accacdb2128f12061854 from git/master to
frameworks branch

M  +6    -13   libs/models/imagealbumfiltermodel.cpp

http://commits.kde.org/digikam/3cfa54ed3525adacdc1fb640f3d30fe7941dbc8d

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