[Qt-qml] Why can't I stylesheet a font?

[Gregory Schlomoff]

I don't want to toot my own horn, but we were discussing that with
another developer a while ago on the chat, and it would definitely be
very helpful to have a simple and flexible way to assign properties in
batches.

The "subclassing" method (making a separate component) is not flexible
enough when you have multiple combinations of styles, and can quickly
lead to a nightmare of files.

> This approach has the advantage of being linked to the type. This means that
> you only use the properties relevant for that type

When you create a PropertyChanges element, you also lose type
information, so it doesn't seem to be that much of an issue.

So yes, this is probably not something that is going to be introduced
in 4.7, but my guess is that as the usage of QML increases, the need
for something like property groups will really become obvious.

Cheers,

greg

On Tue, Jul 13, 2010 at 11:37 AM, Jason H <scorp1us at yahoo.com> wrote:
> Actually I like Gregory's better still. While I'd likely put the "style sheet"
> stuff in a separate file, your implementation implies that I'd have to have a
> file for every item of every style. HTML CSS's files can be one per site, and
> that's a huge feature.
>
> And the fact that I can specify font and color (which isn't a part of font!?)
> at the same time is really handy.
>
>
> Still, good to know...
>
>
> ----- Original Message ----
> From: Alan Alpert <alan.alpert at nokia.com>
> To: qt-qml at trolltech.com
> Sent: Tue, July 13, 2010 12:30:37 AM
> Subject: Re: [Qt-qml] Why can't I stylesheet a font?
>
> On Tue, 13 Jul 2010 10:48:46 ext Gregory Schlomoff wrote:
>> I second that. Would be very useful to be able to create a predefined
>> group of properties, and then assign the group as a whole to any
>> object.
>>
>> Something like this:
>>
>> PropertyGroup {
>>   id:bigText
>>   font.face = "Arial"
>>   font.pointSize: 30
>>   color: "red"
>> }
>>
>> Text {
>>   text:"Hello"
>>   properties: [bigText, anotherSetOfProperties]
>> }
>
> Something also like that, but that you can do in QML today, is:
>
> MyText.qml
> Text{
>    font.face: "Arial"
>    font.pointSize: 20
>    color: "red"
> }
> main.qml
>
> MyText{
>    text: "Hello"
> }
>
> This approach has the advantage of being linked to the type. This means that
> you only use the properties relevant for that type. Also the precedence is
> clear, so if you want to set a different color but keep the other properties,
> that's easy and should be unambiguous.
>
> The downside of this approach is that you need an extra file, but presumably if
> these properties are worthwhile separating out you may want to use them in
> multiple files anyways.
>
> --
> Alan Alpert
> Software Engineer
> Nokia, Qt Development Frameworks
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