[KDE Usability] Review Request: Improve KColorChooser dialog color preset selection implementing a custom ItemDelegate

[Markus Slopianka]

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So far I like the sunken border proposal best.

- Markus


On 2010-03-28 17:10:25, Darío Andrés wrote:
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> (Updated 2010-03-28 17:10:25)
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> 
> Review request for kdelibs and usability.
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> 
> Summary
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> Do not use the QPalette::Highlight color to show the selected color preset in the KColorChooser dialog. 
> 
> Use a custom selection drawing, black or white (depending on the contrast with the original color (KColorUtils::constrastRatio > 3.5))
> This way you get a "this color is selected" hint, but you are still able to see which color it was/is
> 
> My last choice was a centered empty circle. Drawing a rectangle (or dotted rectangle) had too much glitches as the color preset buttons in the tableview are small (~ 13x13 pixels)
> Also, there is a bug (not caused by me) that reduces the color preset buttons height or width (by one) on the top/left borders (seems to be related to the QTableWidget without Headers..)
> 
> I tried to not use color shading as it is still confusing to the user...
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> As a gift, I added a small detail in the empty buttons (no color defined), drawing a cross on it (using the background color)
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> Attached screenshot: can you recognize the selected color in the first one ? (hint: the same color is selected in both screenies..)
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> 
> This addresses bug 230524.
>     https://bugs.kde.org/show_bug.cgi?id=230524
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> 
> Diffs
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>   svn://anonsvn.kde.org/home/kde/trunk/KDE/kdelibs/kdeui/colors/kcolordialog.cpp 1107102 
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> Diff: http://reviewboard.kde.org/r/3410/diff
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> Testing
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> It works Ok and it looks good (ok, it could be prettier, any ideas? may be a gradient?)
> At least it doesn't block the real color.
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> Screenshots
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> Before and After my patch
>   http://reviewboard.kde.org/r/3410/s/340/
> With a radiobutton-like selection
>   http://reviewboard.kde.org/r/3410/s/341/
> Using sunken border on selected item
>   http://reviewboard.kde.org/r/3410/s/345/
> 
> 
> Thanks,
> 
> Darío
> 
>

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