[Bug 181893] New: blur: dragging the preview image removes the target frame and leaves only the source frame

http://bugs.kde.org/show_bug.cgi?id=181893

           Summary: blur: dragging the preview image removes the target
                    frame and leaves only the source frame
           Product: digikam
           Version: 0.10.0-beta8
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           0.10.0-beta8 (using 4.1.96 (KDE 4.1.96 (KDE 4.2 RC1)),
Debian packages)
Compiler:          cc
OS:                Linux (x86_64) release 2.6.26-1-amd64

starting a blur effect, i get the screen divided into target and original
frames
moving the upper-right preview image removes the target frame.

i think they both used to change (slide) together and reflect the place of the
moving selection in the main image.

pressing "try" button places the frame back with the result.

looks like a bug but might be intentional ?


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[Gilles Caulier-4]

http://bugs.kde.org/show_bug.cgi?id=181893


Gilles Caulier caulier gilles gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |Core Plugin
            Product|digikam                     |digikamimageplugins




--- Comment #1 from Gilles Caulier <caulier gilles gmail com>  2009-01-25 18:27:49 ---
It's intentional.

I let's Andi give more info here... I have set this behaviours in code.

Gilles Caulier


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--- Comment #2 from Andi Clemens <andi clemens gmx net>  2009-01-25 20:28:30 ---
We set it this way because blur can be very time consuming (30 seconds and
more, depending on the image size and the zoom level).
Many users were annoyed that moving the slider or the preview image immediately
resulted in the preview calculation.
So we removed the automatic calculation so that the user can select the preview
window and the filter settings and hit "try" to finally see the results.
Since the preview is only calculated for the preview window, moving the frame
"deletes" the target view, since this data is simply not present.

Andi


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Nadav Kavalerchik nadavkav gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID




--- Comment #3 from Nadav Kavalerchik <nadavkav gmail com>  2009-01-25 20:30:15 ---
you are so right !
thanks :-)


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--- Comment #4 from Andi Clemens <andi clemens gmx net>  2009-01-25 20:35:33 ---
If the zoom level is quite big, it is fast (like in Gimp, the preview seems to
be zoomed to 100%). Maybe we will add something similar like in Gimp, where you
have this "Preview" checkbox. We will see. For 0.11 we are planning to
re-implement the editor preview widget.

Andi


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--- Comment #5 from Nadav Kavalerchik <nadavkav gmail com>  2009-01-25 20:41:37 ---
great idea.

thow, you do not want to make too small ;-)


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--- Comment #6 from Andi Clemens <andi clemens gmx net>  2009-01-25 20:45:22 ---
The plan is not to copy Gimp's plugin dialog, I only meant the checkbox feature
:-)
We'll see what will happen, don't know if the others have plans in mind
already.

Andi


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Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|0.10.0-beta8                |0.10.0




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Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
          Component|Core Plugin                 |Blur




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           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Blur                        |Tool-Blur
            Product|digikamimageplugins         |digikam

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           What    |Removed                     |Added
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          Component|ImageEditor-Tool-Blur       |Usability-Drag&Drop

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