(forwarding to pd-dev :)
> in Pd it's everything the drag-rectangle touches. This might not be
> an issue for other people.
That's what QGraphicsScene does by default! I just double checked with
my level editor. Don't underestimate modern UI frameworks ;-)
-------- Forwarded Message --------
Subject: Re: [PD-dev] Re: Fwd: Re: gtk front end for Pd?
Date: Mon, 30 Sep 2024 21:55:54 +0200
From: Miller Puckette <mpuckette(a)cloud.ucsd.edu>
To: Christof Ressi <info(a)christofressi.com>
The specific thing I hate is that only things entirely inside the
drag-rectangle get selected - in Pd it's everything the drag-rectangle
touches. This might not be an issue for other people.
cheers
M
On 9/30/24 9:45 PM, Christof Ressi wrote:
>
>>> I also hate the way every canvas I've seen does
>>> rectangle-selection. Maybe you know of one I won't hate :)
>>>
>>> And... every widget set I've seen thinks widgets live in
>>> rectangles. The second most important graphical item in Pd is the
>>> patch line. Giving it a widget-style selection method? Disaster. I
>>> don't think patch lines can be TK or GTK r QT or anyone's widgets -
>>> imagine how those bounding rectangles would fill th screen :)
>
> Qt only uses bounding rectangles for the broad phase hit detection.
> The actual hit detection can then be further customized for each
> widget. The collision shape can be anything from a circle to an
> arbitrary polygon or even a bitmap. For example, a line item only
> receives a mouse event if you click on the actual line.
>
> In case you're talkinga about the actual graphical representation of
> the selection: that's totally up to you. By default, QGraphicsScene
> only notifies the selected items; you can then decide to how to
> present the selection to the user. In the case of Pd, you would only
> change the appearance of the selected objects (i.e. make them blue),
> but not draw a bounding rectangle.
>
> Another nice feature about Qt's selection mechanism is that you can
> use arbitrary selection shapes. For example, you can select items by
> drawing an arbitary path, similar to "free selection" mode in painting
> programs. That's actually a feature I've always wanted in Pd :)
>
>>>>
>>>> Thanks to Antoine for mentioning pdlua! I will need to check it
>>>> out. I have already seen people doing some very cool stuff with it.
>>>> Maybe they already have the perfect solution :)
>>>>
>>> I'm also looking at pdlua, which might want to become the official
>>> way to make graphical externs AND to add scripting in a fundamental
>>> way to Pd :)
>
> +1 for an official scripting language! :) (I love Lua, BTW.) And yes,
> it would make lots of sense to leverage the scripting language to
> implement custom UIs!
>
> Christof
>
>
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