Fwd: Approval request for feature idea

[Sven Brauch]

Hi,

On 5/30/22 20:37, samuel ammonius wrote:
> I've worked with regular CSS and I'm sure that stylesheets offer just as 
> many customization options as things like QtCurve or QStylePlugins. The 
> reason that it may not seem this way is because Qt didn't document 
> regular CSS syntax in the documentation for stylesheets.

No, the reason is that Qt's CSS has absolutely nothing to do with the 
regular CSS known from browsers. It's a proxy style which tweaks how a 
base style (e.g. Fusion or Breeze) draws elements on the screen, by e.g. 
modifying the palette and then forwarding the draw call to the base 
style. It implements maybe 1% of the CSS stuff a modern browser can do, 
and that's a favourable estimate. And not even all of that will work as 
expected in all cases. For details, see [1].

That this proxy style's behaviour can be configured using a CSS-like 
syntax is coincidental, or, well, intentionally made that way for ease 
of use. But: this is not the CSS you know or expect.

> I can't verify that stylesheets can do everything that a style plugin 
> can do

They can't. Regular CSS 3 in Firefox is probably pretty close, 
practically speaking, but Qt's CSS, not so much.

> but I know for sure that Breeze can be made using a qstylesheet 

Where did you get this information? This is certainly not the case. Just 
try to make e.g. the animated fades in Breeze using Qt's CSS and Fusion 
as the base style and you will immediately discover that it's not possible.

Greetings,
Sven

_____________
[1] 
https://code.woboq.org/qt5/qtbase/src/widgets/styles/qstylesheetstyle.cpp.html
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