Declarative UI integration v0.2

[Chani]

On October 2, 2009 01:21:01 Marco Martin wrote:
> On Friday 02 October 2009, Alan Alpert wrote:
> > On Fri, 2 Oct 2009 03:06:50 ext Marco Martin wrote:
> > > On Thursday 01 October 2009, Chani wrote:
> > > > > Once the file is loaded we need to provide ways for it to access
> > > > > plasma specific functionality. The plasma functionality which I
> > > > > believe needs to be exposed is:
> > > > > -Plasma Widgets
> > > > > -Plasma Theme (SVGs/colors)
> > > > > -Plasma data sources (through data engines)
> > > >
> > > > and services
> > > >
> > > > > -Centrally managed configuration data storage
> > > > > -Config dialog requested
> > > > > Please correct me if anything is missing from this list or is
> > > > > incorrect.
> > > >
> > > > constraints events?
> > >
> > > that means being aware at least of the location and formfactor
> >
> > Is this just size/sizeHints? Because if so we might be able to implement
> > those by just setting the PlasmaQmlView size - this could propagate to
> > the root item and you can design your applet with bindings to this size.
> 
> the constraintevent is a virtual that in applets can be reimplemented to
> manage a bunch of events at once, out of my mind are:
> -size
> -formfactor: is it planar (desktop) vertical or horizontal?(panels)
> -location: in desktop, top, bottom, left...
> -immutability: desktop locked/unlocked
> those are the most important, i'm forgetting something?
> 

enum Constraint {
    NoConstraint = 0,
    /** The FormFactor for an object */
    FormFactorConstraint = 1,·
    /** The Location of an object */
    LocationConstraint = 2,
    /** Which screen an object is on */·
    ScreenConstraint = 4,
    /** the size of the applet was changed */
    SizeConstraint = 8,
    /** the immutability (locked) nature of the applet changed  */
    ImmutableConstraint = 16,·
    /** application startup has completed */
    StartupCompletedConstraint = 32,·
    /** the desktop context has changed */
    ContextConstraint = 64,
    /** the position of the popup needs to be recalculated*/
    PopupConstraint = 128,
    AllConstraints = FormFactorConstraint | LocationConstraint | 
ScreenConstraint |
    SizeConstraint | ImmutableConstraint | ContextConstraint | PopupConstraint
};



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