[Interest] QDatastream, QMap, QImage serialization

[Roland Hughes]

On 05/21/2018 10:53 AM, Thiago Macieira wrote:
> On Sunday, 20 May 2018 21:27:31 -03 Jason H wrote:
>> Why is QImage even a GUI type?
> "Has pixels" is the simplest defintiion of GUI.
Not exactly a definition which should actually be used though. While 
facial recognition may make for impressive displays on cop shows and 
seismic data make look wonderful in certain movies, the reality is that 
it is just data bundles which an algorithm runs over looking for patters 
much like a text search performed via a command line editor.

QColor could even be classified as such. Maybe.

Pen and brush though, they exist for the physical act of painting and 
primarily for that.

Having said all of that though, and given QPixmap can be loaded in a 
worker thread I don't have a major issue with the current split between 
GUI and core.

It does make one wonder about what shortcuts were taken to require 
painting only occur in the GUI. That would be a much more beneficial 
conversation for the Qt community as a whole, especially since we can 
paint off-screen then blit it on. It would seem that off-screen painting 
should be threadable.

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Roland Hughes, President
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