[Development] Bringing Qt's high-dpi support to more platforms

md at rpzdesign.com md at rpzdesign.com
Mon May 26 15:04:28 CEST 2014


Hopefully you are going to developer days in Berlin this summer.

And Hopefully you are giving a presentation that will be available on
youtube titled, "Qt Quick Developer Quick Start to developing QML Opengl
Core Graphics Code for Android and IOS on 5.3+"

I think you guys who are veterans of the foundation code could give us a
quick start instead of having to feel my way through the classes and code.

For example, I did not know how to build Qt static until I watched:


That video saved me HOURS of trial and error trying to understand the

I would love to see what tips and tricks the experienced developers have
when arranging their build and debug environments in Windows and OSX
that you have found works back in Finland.

It would be nice to be able to start contributing code at some point
when I have a new device like the SUPER HDPI Android 8.9....



On 5/26/2014 8:51 AM, Sorvig Morten wrote:
> On 26 May 2014, at 07:59, Ziller Eike <Eike.Ziller at digia.com> wrote:
>> On May 23, 2014, at 6:03 PM, md at rpzdesign.com wrote:
>>> Sorvig:
>>>> From the latest new front:
>>> http://bgr.com/2014/03/18/nexus-9-specs-details/
>>> Digitimes on Tuesday cited its own research arm in reporting that Google
>>> will launch two new Nexus tablets in 2014. In addition to an updated
>>> Nexus 7, Google is reportedly prepping a new 8.9-inch Nexus tablet that
>>> will feature a Retina-busting screen with better-than-2K resolution.
>>> So will your HIGH DPI modification support the coming high res Android
>>> stuff too?
>> The retina support that currently is in Qt/Mac (which would be extended to the other platforms) supports any float scale factor for HiDPI.
> .. with the qualification that Mac always uses an integer scale factor (2x) and that you might get painting artifacts with a non integer factor. WinRT is are using float scale factors so this will see testing there. High scale factors should not be a problem in itself, what I see from testing on desktop is that the style breaks at some point going beyond 2X.
> Android support itself is still on the TODO list.
> Morten
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