Re: [Interest] Pixmap redraw on OS X Retina display zoomed-in 4x?

[Jason H]

Look for something called DevicePixelRatio... Also QML Screen attached property/element. It might be a shortcoming in Qt, but you should be able to work around it.

 

 

 

Sent: Friday, January 22, 2016 at 8:57 AM
From: "Edward Sutton" <edward.sut...@subsite.com>
To: "Qt Interest" <interest@qt-project.org>
Subject: [Interest] Pixmap redraw on OS X Retina display zoomed-in 4x?

• I have a QTableWidget.  
• In the name column zero I have cell widget consisting of a QCommandLinkButton
• I added a horizontal layout to QCommandLinkButton containing 3 QLabels, 2 with text, and the middle label contains a pixmap.

Problem:

 

1 - When QWidget app runs on external HD display all is good. See screenshot below.

2 - When the same QWidget app is executed on the MacBook’s internal retina display, the pixmaps are zoomed in about 4X.

 

Suggestions are appreciated.

 

( I wish I had been paying attention to the high DPI discussions now. )

 

-Ed

 

Screenshot 1 - HD display all is good.

 

 

 

Screenshot 2 - After redraw on retina  pixmaps are zoomed in about 4X?

 

 

 

 

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