Hi Pascal,
I expect Sjors will offer an obvious API call that can solve the whole
problem in a minute, but here would be my non-WebKit approach to starting
to tackle the problem... :P
To transitioning existing skins, I think it easiest to avoid fluid layouts,
since these would be very hard to do while maintaining what the original
skin author intended in terms of aspect (there would also be problems with
what to do for the scene background too).
Instead, as an initial step in the evolution, I would offer restricting
resizing to a 1:1 aspect ratio changes and do sizing / positioning widgets
based on where they are located at percentage wise in the original skin
size...
i.e.
When a widget is created calculate these values:
widget.start_x% = widget.x / form.width
widget.start_y% = widget.y / form.height
widget.width% = widget.width / form.width
widget.height% = widget.height / form.height
// If QSS supports percentages for x,y,width, height, one could generate a
QSS stylesheet from the values
// Otherwise, set-up widget like this:
move(
start_x% * form.width, // convert to int
start_y% * form.height // convert to int
);
resize(
widget.width% * form.width, // convert to int
widget.height% * form.height // convert to int
);
// ^- This is overly simplifying the other stuff around form aspect resize
restrictions and triggering resizing of everything...
The obvious limitations of this approach are:
* Artwork is not vector based (.SVG), so as stretching occurs controls might
start to look crappy
* truncating/rounding of positions and sizing might result in some slight
imprecision in placement (probably worse the smaller things get)
Drag and drop reorganizing of widgets would be cool for editing skins (i.e.
an "edit" mode), but I would want stuff locked down (accept for the ability
to open overlays) while playing.
Cheers,
-G
__
--- == __/ t.O ==--
http://stacktrace.org/
On Sat, Jan 23, 2010 at 4:34 AM, Pascal Huerst <pascal.hue...@bluewin.ch>wrote:
> Hi RJ,
>
> You are right we should keep that possibilities everything should be as
> flexible as now.
>
> What I'M thinking about is, that if the UI is resizable, the "things" on
> the mainwindow have to align. Thats what we mean by "resolution
> independent", right? But i don't know how to define these things. Is it
> really a skin designer? Maybe we should distinguish between "Interface" and
> "Skin". I think a skin should define how things look like and an Interface
> how they behave on resizing or so. ? Maybe there should be a mode, where you
> can build a Deck, like setup a Mixer as you like and a player as you like
> and then apply a skin to it ?!
>
> Thanks for the answer. Maybe I will be confusing, till I get a clear image
> about the solution ;-)
>
> Pascal
>
>
>
> Am 22.01.2010 um 18:42 schrieb Russell Ryan:
>
> > Hey Pascal,
> >
> > First off, thanks a lot for joining this discussion. It's really
> beneficial to get as many people as possible in on this discussion so that
> we can really understand all the perspectives and use cases involved.
> Whatever we decide on for a new skinning system will hopefully last Mixxx
> for a long time -- so we need to talk about it a lot to make sure we cover
> all the bases.
> >
> > I read your post to the Mixxx forums and this email and I have one
> question. If you group all the widgets into a grouping that is identified as
> a Mixer or a Player, then what happens when someone comes along and wants to
> make a skin where the EQ section of the mixer is separate from the
> crossfader section?
> >
> > In all the current Mixxx skins, none of them have a clear boundary
> between the widgets that you could draw a box around and say 'Here is the
> Mixer'. The parallel waveform display concept, for example, is something
> that we believe is a major aid to DJ'ing. The waveform displays are front
> and center in the outline skins, while the rest of the player widgets are on
> the left or right. In terms of commercially available software, Virtual DJ
> and Torq agree with us in this respect, while Traktor does not. In my
> opinion, a skinning system shouldn't constrain the organization of widgets
> on the screen -- rather it should facilitate it.
> >
> > I'm for a more general approach that doesn't involve grouping widgets at
> all along functional boundaries. Why not allow the skin to specify groupings
> which have layouts, but are not necessarily tied to the grouping's
> functional purpose? That seems a lot more flexible to me.
> >
> > Cheers,
> > RJ
> >
> > pascal.hue...@bluewin.ch wrote:
> >> Hello,
> >>
> >> i need some feedback on that topic. I thought a lot and reviewed the
> code. And I was thinking about how to make a "soft" transition to a new
> interface.
> >>
> >> To change the skinning engine, i think there has to be some
> modifications to the interface itself. Now all the widgets are placed by
> absolute coordinates and like that its not possible to get a fluid layout.
> So I'd like to keep the current xml files, but change the positioning in the
> wwidget.cpp:
> >>
> >>
> >>
> >> void WWidget::setup(QDomNode node)
> >>
> >> {
> >>
> >> // Set position
> >>
> >> QString pos = selectNodeQString(node, "Pos");
> >>
> >> int x = pos.left(pos.indexOf(",")).toInt();
> >>
> >> int y = pos.mid(pos.indexOf(",")+1).toInt();
> >>
> >> //move(x,y); <- remove that to realize a fluid layout
> >>
> >>
> >>
> >> // Get tooltip
> >>
> >> m_Tooltip = selectNodeQString(node, "Tooltip");
> >>
> >>
> >>
> >> .....
> >>
> >>
> >>
> >> Then I think I will write a container class (a QWidget with layout
> abilities), which holds some widgets and allows to arrange them by drag and
> drop. But then I will have to store the positioning somewhere. WHERE???
> >>
> >>
> >>
> >> The container class will align on the mainwindow.
> >>
> >>
> >>
> >> Second thing: Somehow i have to know, which controls i have to put
> together into a container class. This means: I'll have to put all the Mixer
> controls into one container class and all the Player controls into one and
> so forth... Any ideas how i can find out which control elements belong
> together?
> >>
> >>
> >>
> >> I'll try to catch some of you on irc later....
> >>
> >>
> >>
> >>
> >>
> >> Thanks!
> >>
> >> Pascal
> >>
> >>
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> >> Mixxx-devel@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/mixxx-devel
> >>
> >
>
>
>
> ------------------------------------------------------------------------------
> Throughout its 18-year history, RSA Conference consistently attracts the
> world's best and brightest in the field, creating opportunities for
> Conference
> attendees to learn about information security's most important issues
> through
> interactions with peers, luminaries and emerging and established companies.
> http://p.sf.net/sfu/rsaconf-dev2dev
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> https://lists.sourceforge.net/lists/listinfo/mixxx-devel
>
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attendees to learn about information security's most important issues through
interactions with peers, luminaries and emerging and established companies.
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