[Panel-devel] CardLayout and PositionLayout

[Ivan Čukić]

Is there a need for these layouts (to port them to libplasma from Lancelot 
like the BoxLayout in the past)

CardLayout:
Holds multiple elements. It can hold LayoutItems and Widgets. Only one Widget 
can be shown at a time. LayoutItems are always shown since there are no 
hide/show methods for them. Every Widget has an id, so that you can call 
layout->show(id) to show that Widget. Every Widget and LayoutItem occupies 
the whole available space given to the layout. (Except margins) No transition 
animation ATM.

PositionLayout:
Holds multiple elements. The coordinates for an element can be set absolute or 
relative, going from any corner of the layout.
Simple mapping of the values - x coordinates:
[0, 1.0]   - this coord is relative to left border. 0.25 is located at one
             quarter of the width of the layout's geometry.
(1.0, +oo) - coordinate in pixels from the left edge
[-1.0, -0] - this coord is relative to left border. -0.25 is located at three
             quarters of the width of the layout's geometry (calculating from
             the left edge).
(-oo, 1.0) - coordinate in pixels from the right edge

The code (a bit dirty ATM) is located in
    trunk/extragear/plasma/applets/lancelot/app/

Cheers

-- 
Those people who think they know everything are a great annoyance to those of 
us who do.
   -- Isaac Asimov
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