Re: [Scope-dev] Mouse Events in JDK

[Steve M. <sme...@ya...>]

Mouse events are delivered to the application by the OS in an event queue.
The "application" in this case is the JDK, and the event queue is exposed
through the AWT. AWT delivers to heavyweight components, and from there
Swing receives and despatches to lightweight components.

---

Agree with you on the hierarchical models, and in fact scope models are
already hierarchical in the sense that they can contain other models (as
properties). There is support for some of the subtleties that arise from
this in the BasicController's handling of MODEL_CHANGED Controls. I can
explain that handling some more if you like?

SteveM



----- Original Message -----
From: "Christian Heller" <chr...@tu...>
To: <sco...@li...>
Sent: Monday, December 16, 2002 8:36 AM
Subject: [Scope-dev] Mouse Events in JDK


> Hi,
>
> and sorry for using this list for a general Java question, but I know
> there are so many experts reading it :-)
>
> Where and How are mouse events caught by the JDK?
> The mouse event causes an interrupt in the OS but how does Java now
> catch this event? Is it in the JVM? Or the AWT?
> Where does Java find out over which AWT/Swing component the mouse
> pointer was when the mouse was clicked?
> ...same question for keyboard events.
>
> --
> One idea that might be interesting for Scope MVC:
> The classical MVC has a hierarchical View, the HMVC has a hierarchical
> Controller - so why shouldn't the Model be hierarchical as well?
> In fact, it is in the latest domain modelling approaches (Ontologies),
> like the OpenEHR.org/GEHR.org project for medical software.
>
> I've realized that actually not only MVC but ALL items in the real world
> are hierarchical. Nothing new, I guess, but nobody really implemented
> this into software. The key design decision to implement this is to make
> the top-most class a tree node/container so that all inheriting classes
> are tree nodes automatically.
>
> Thank you,
> Christian
>
>
>
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