Review Request 120277: Fix size hint and positioning of klineedit clear button in high dpi mode

[Hugo Pereira Da Costa]

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https://git.reviewboard.kde.org/r/120277/
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Review request for KDE Frameworks.


Repository: kcompletion


Description
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As mentionned in the title.

Steps to reproduce:
use latest qt-5.4
set QT_DEVICE_PIXEL_RATIO to 2
run oxygen-demo5 --highdpi
(you need latest from oxygen repository to have the option available)

Code applies already to Qt-5.3 (and does nothing) so no ifdef is needed.

Code is inspired from what is done in QCommonStyle: 
                QPixmap pixmap = button->icon.pixmap(button->iconSize, mode, state);

                int pixmapWidth = pixmap.width() / pixmap.devicePixelRatio();
                int pixmapHeight = pixmap.height() / pixmap.devicePixelRatio();
(line 1247 or so)

Note: there is similar fixing to be done in KPageWidget (and possibly elsewhere). I'll post a review next.


Diffs
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  src/klineedit_p.h d2be5ab 

Diff: https://git.reviewboard.kde.org/r/120277/diff/


Testing
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With/withough high dpi enabled
any widget style


File Attachments
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before
  https://git.reviewboard.kde.org/media/uploaded/files/2014/09/19/72d0cc3d-c6d4-4e8d-a337-3e582446c67e__klineedit-old.png
after
  https://git.reviewboard.kde.org/media/uploaded/files/2014/09/19/570163fb-69d3-465f-a78b-9465126d446d__klineedit-new.png


Thanks,

Hugo Pereira Da Costa

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