[Digikam-devel] [Bug 150674] New: turn of live update of preview when moving points in curves dialog or in histogram

[Mikolaj Machowski]

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http://bugs.kde.org/show_bug.cgi?id=150674         
           Summary: turn of live update of preview when moving points in
                    curves dialog or in histogram
           Product: digikamimageplugins
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: mikmach wp pl


Version:            (using KDE Devel)
Installed from:    Compiled sources
OS:                Linux

It applies to all plugins with histogram or curves manipulation.

When moving points of histogram/curves digiKam tries to make live update of preview. It takes much of resources and computer neither really succeeds in updates of preview nor reacts smoothly for mouse movements preventing precise settings.

Maybe my machine isn't up to date (Sempron 2200, 756M RAM) but I believe it may affect also many newer computers.

I am leaving this as a bug, not wish, because IMO it makes comfortable usage of program very hard. GIMP - dedicated graphics operation program - doesn't make live update, Pixel also doesn't do this.