MiG InfoCom MiG Calendar AShape Developer Manual - Manual (Page 13)

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depend on each other in any way, only on its parent.
CutEdgeAShapeLayout
Layout the sub shapes according to the following algorithm:
1. The bounds of the parent is offered to the shape in turn to
get laid out.
2. The actual abounds that that shape will use (depending on
its PlaceRect normally) is cut of from the parents
bounds and the bounds left are offered to the next sub
shape. This then repeats until all sub shapes has gotten
laid out.
What this means is that no sub shape will overlap. This works
much like a DockingLayout (sometimes called EdgeLayout)
and is normally used as one. The sub shapes to be “docked”
should have their
PlaceRect cut of the correct piece. There
is an optimized constructor for this in AbsRect (which
implements PlaceRect ).
RowAShapeLayout
A layout not unlike
BoxLayout in Swing, but much more
flexible. It lays out the sub shapes in one row, with the size
in the non laid out dimension set to match that of the parent.
The size in the laid out dimension can be absolute or relative
and have min/preferred/max sizes set. This makes it very
flexible, especially since it asks the sub shapes what is their
min/preferred/max size, if that information isn't set directly
for the
RowAShapeLayout .
It will not make the sum of the sub shapes larger that its
own size.
This layout can be used for creating a list of icons for
instance.
Rolling Your Own
It is very easy to make your own
ShapeLayout . You either
implement ShapeLayout directly and write the two methods
it specifies or if the the AbstractAShapeLayout 's size
estimation is adequate you just extend it to implement the
actual layout algorithm.
Interactions
AShape Developer Manual Page 13 / 24