[Bug 305377] New: Too easy to add new points in Adjust Curves

[Milan Zamazal]

https://bugs.kde.org/show_bug.cgi?id=305377

            Bug ID: 305377
          Severity: wishlist
           Version: 2.6.0
          Priority: NOR
          Assignee: [hidden email]
           Summary: Too easy to add new points in Adjust Curves
    Classification: Unclassified
                OS: Linux
          Reporter: [hidden email]
          Hardware: Debian testing
            Status: UNCONFIRMED
         Component: Image Editor
           Product: digikam

When adjusting curves in the image editor it's easy (especially with some input
devices) to create new curve points ("red dots") instead of moving existing
ones. It would be nice if a different command, e.g. right clicking the mouse,
was used to create new points.

Reproducible: Always

Steps to Reproduce:
1. Open Adjust Curves tool in image editor.
2. Adjust the curve in some way.
3. Click a bit far from some of the adjustment points.
Actual Results:  
A new curve point is created and I have to wait for redraw. Then I have to move
the mistaken point away (hopefully clicking right this time) and wait again for
another redraw. Then I can continue with my original intentions.

Expected Results:  
Either nothing happens or the closest point is moved. New points should be
created with a different command, e.g. right mouse click.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=305377

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
          Component|Image Editor                |Adjust Curves
            Product|digikam                     |digikamimageplugins

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[Marcel Wiesweg]

https://bugs.kde.org/show_bug.cgi?id=305377

--- Comment #1 from Marcel Wiesweg <[hidden email]> ---
Once again, I object to add barriers which disable unexperienced users. My
suggestion: Extend the "move" region around existing points, and change the
cursor shape to be explicit and give direct feedback about the action at the
current position.

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[Milan Zamazal]

https://bugs.kde.org/show_bug.cgi?id=305377

--- Comment #2 from Milan Zamazal <[hidden email]> ---
Extending the move region wouldn't work here (while it would be useful in the
aspect ratio crop tool) since the curve adjustment widget is too small and this
would prevent adding new points nearby (there is no such problem in aspect
ratio crop).

The cursor shape already changes but it feels inexact and it's too easy to slip
on click and performing the other action than originally indicated by the
cursor.

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[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=305377

[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Product|digikamimageplugins         |digikam
          Component|Adjust Curves               |Tool-Curves

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