Review Request 127102: Use fixed width for digital clock applet

[Daniel Faust]

> On Feb. 18, 2016, 1:05 vorm., David Edmundson wrote:
> > applets/digital-clock/package/contents/ui/DigitalClock.qml, line 555
> > <https://git.reviewboard.kde.org/r/127102/diff/1/?file=444552#file444552line555>
> >
> >     rather than looping, can we use FontMetric's maximumCharacterWidth
> >     
> >      * numChars.
> >     
> >     Then we could kill sizeHelper competely (FontMetric's didn't exist when this was written)
> 
> Marco Martin wrote:
>     hoping maximumCharacterWidth is reliable for all fonts, this loop really needs to go

As far as I understand maximumCharacterWidth returns the width of the widest character of the font - which can be ridiculously wide given that the font supports some wild unicode characters.
I did a quick test and maximumCharacterWidth returned about twice the width actually needed.


- Daniel


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On Feb. 17, 2016, 5:23 nachm., Daniel Faust wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/127102/
> -----------------------------------------------------------
> 
> (Updated Feb. 17, 2016, 5:23 nachm.)
> 
> 
> Review request for kde-workspace and Plasma.
> 
> 
> Bugs: 347724
>     https://bugs.kde.org/show_bug.cgi?id=347724
> 
> 
> Repository: plasma-workspace
> 
> 
> Description
> -------
> 
> Currently the width of the date label is not fixed but changes depending on the text. This causes the entire applet to change its width (if the time is the widest displayed item). This in turn can cause all other applets in the same panel to move whenever the displayed time changes.
> 
> This patch uses FontMetrics to iterate over all possible time strings (with different width) and chooses the widest of them as reference for the fixed width of the time label.
> 
> This way the width of the applet stays the same (unless the date is displayed and changes). The text remains centered though, which means that it can still move within the applet when the time changes.
> 
> 
> Diffs
> -----
> 
>   applets/digital-clock/package/contents/ui/DigitalClock.qml 95bb071 
> 
> Diff: https://git.reviewboard.kde.org/r/127102/diff/
> 
> 
> Testing
> -------
> 
> Works with horizontal and vertical panel.
> Also displaying different combinations of "seconds", "date" and "timezone" works.
> 
> 
> Thanks,
> 
> Daniel Faust
> 
>

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