[Development] The place of QML

Thiago Macieira thiago.macieira at intel.com
Wed May 16 19:49:26 CEST 2012

On quarta-feira, 16 de maio de 2012 13.24.25, Atlant Schmidt wrote:
>   The FOSS developers HOPE that their interests are congruent
>   with those of the mere customers and at least in QT's world,
>   there's some evidence that this is true for some customers
>   but there is also mounting evidence that this is decidedly
>   NOT TRUE for other customers, hence our current debate
>   about QML Qt versus QWidget Qt.

That's not exactly true. The debate isn't about QML vs QWidget. The core of 
the debate, as far as I can see, is whether there should be a C++ interface 
for making UIs with the new technology.

I haven't seen anyone support QWidget itself in this thread. Moreover, I doubt 
most people know the challenges with enhancing QWidget further. Consider this: 
the QWidget & QPainter imperative painting technology is Done. It's not a 
matter of taste, it's fact: graphical technology has moved on.

Sure, there will still be some uses for QPainter, just as QWidget will remain 
there for a few years to come. That's not the point.

But the point is that we need something new to take Qt forward and be the 
basis for the next 5-10 years. The suggestion so far is QML & scene graph and 
with a few tweaks it could be made to suit most people's requests.

No one has suggested an alternative.

So I suggest we spend our energy discussing those tweaks I mention, what's 
necessary to make the technology more attractive to current developers, what 
the impact on maintenance will be, etc.

Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
     Intel Sweden AB - Registration Number: 556189-6027
     Knarrarnäsgatan 15, 164 40 Kista, Stockholm, Sweden
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