It is a Java component, done by JGoodies.com and that
distributes the graphical components by the screen, adapting to the
changes of size.
The advantage of this component is that it is very easy to
handle and to understand and that practicamente covers all the
necessities with applications of windows with many fields and
One is based, in defining a grid, (of rows and columns), where
the components are located. This allows that it is very easy to
align the components. By each row or column we can specify its
size, either fixed, or by which they say the components to us that
contain it. Conditions can even be put, pej. "min(100,
pref)" means the minimum between which they occupy the 100 components
and pixels. In addition if we added ":grow" to a column (or row)
we cause that this one changes of size adapting to the window.
The components can occupy but of of a row or column, which is
essential for great components like tables or trees.