[digikam] [Bug 338276] New: Mouse-over preview mode does not work

[Samuel Gilbert]

https://bugs.kde.org/show_bug.cgi?id=338276

            Bug ID: 338276
           Summary: Mouse-over preview mode does not work
           Product: digikam
           Version: 4.2.0
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Image Editor
          Assignee: [hidden email]
          Reporter: [hidden email]

In the image editor, when performing a modification with a preview, the
mouse-over preview works only once.  When changed to "After" it doesn't go back
to before even when the mouse cursor is placed on top of the image.

Reproducible: Always

Steps to Reproduce:
1. Select an image in an album
2. Press F4 to open the image editor
3. In the menu, select an operation such as Color -> White Balance
4. Use the color picker and click somewhere in the image
5. Move the mouse cursor over the panel on the right side to display the
"After"
6. Move the mouse cursor back over the image
Actual Results:  
The image stays at "After".

Expected Results:  
The image displayed image should be "Before" when the mouse cursor is brought
back over the image.

Clicking in the image will make it change back to "Before"

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=338276

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]

--- Comment #1 from Gilles Caulier <[hidden email]> ---
You need to move over image content, not canvas.

If you zoom over and image do not fill all canvas, region where no image data
is displayed are not sensible to mouse over.

I'm sure, i use this mode all days, and all work as explained before perfectly.

I agree : this behavior is a regression compared to 3.x release and must be
fixed.

Gilles Caulier

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[Samuel Gilbert]

https://bugs.kde.org/show_bug.cgi?id=338276

--- Comment #2 from Samuel Gilbert <[hidden email]> ---
The image was zoomed to "Fit to Window" and took almost all the space available
in the canvas.  I brought the mouse cursor back over the actual image and it
did not change.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=338276

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Mouse-over preview mode     |CANVAS : mouse-over preview
                   |does not work               |mode does not work

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[Jan Wolter-2]

https://bugs.kde.org/show_bug.cgi?id=338276

Jan Wolter <[hidden email]> changed:

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                 CC|                            |[hidden email]

--- Comment #3 from Jan Wolter <[hidden email]> ---
I justed this issue on 4.6.0 and I can confirm the problem exactly in the way
Samuel explained it.

I tested a bit and the problem occures just after clicking with the color
picker. After that, moving the mouse over the picture does not show the
"before" state as expected. But clicking somewhere in the picture brings the
"before" state as long you leave the cursor on the picture canvas.

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[Jan Wolter-2]

https://bugs.kde.org/show_bug.cgi?id=338276

--- Comment #4 from Jan Wolter <[hidden email]> ---
The same problem occures also in the three other tools that use a color picker:
levels adjust, curves adjust, and color negative.

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[Maik Qualmann]

https://bugs.kde.org/show_bug.cgi?id=338276

Maik Qualmann <[hidden email]> changed:

           What    |Removed                     |Added
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                 CC|                            |[hidden email]

--- Comment #5 from Maik Qualmann <[hidden email]> ---
Created attachment 89923
  --> https://bugs.kde.org/attachment.cgi?id=89923&action=edit
colorpicker.patch

This patch fixes problems with the color picker. The mouse tracking is disabled
after selection. Another problem was when one has often pushed the color picker
button, the original preview mode was activated.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=338276

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|CANVAS : mouse-over preview |CANVAS : mouse-over preview
                   |mode does not work          |mode does not work [patch]

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=338276

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Version Fixed In|                            |4.6.0
      Latest Commit|                            |http://commits.kde.org/digi
                   |                            |kam/06483c675c53e09d19e0f31
                   |                            |f30777fdb7d1d38ae
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Gilles Caulier <[hidden email]> ---
Git commit 06483c675c53e09d19e0f31f30777fdb7d1d38ae by Gilles Caulier.
Committed on 11/12/2014 at 22:01.
Pushed by cgilles into branch 'master'.

Apply patch #89923 from Maik Qualmann about to fix mouse over editor tool
preview mode when color picker is used.
FIXED-IN: 4.6.0

M  +2    -1    NEWS
M  +6    -1    utilities/imageeditor/widgets/imageregionwidget.cpp

http://commits.kde.org/digikam/06483c675c53e09d19e0f31f30777fdb7d1d38ae

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[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=338276

[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|ImageEditor                 |ImageEditor-Canvas

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