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<H1><A NAME="SECTION002110000000000000000">
1.11 Borders</A>
</H1>
Some containers allow your views to have borders set.  When the view
is placed inside the container, additional space will be reserved
around the view for the borders; that space will be left intentionally
blank.

<P>
The container will call <TT>-autolayoutDefaultHorizontalBorder</TT> of
the view to get its (default) horizontal border, and
<TT>-autolayoutDefaultVerticalBorder</TT> to get its (default) vertical 
border.

<P>
You can later change the borders manually by calling the appropriate
method of the container, such as
<TT>-setHorizontalBorder:forView:</TT> for boxes.

<P>
Renaissance AutoLayout adds a category to NSView, implementing the
following methods:

<P>

<UL>
<LI><TT>- (float) autolayoutDefaultHorizontalBorder</TT>, which
should return the default border in the horizontal direction for that view.
</LI>
<LI><TT>- (float) autolayoutDefaultVerticalBorder</TT>, which
does the same in the vertical direction.
</LI>
</UL>

<P>
The default implementation of those methods in <TT>NSView</TT> returns
<TT>4</TT> for both of them.  Containers and spaces have implementations
of those methods returning <TT>0</TT> for both of them.

<P>
Unless you are looking for special effects (or for trouble), you
generally don't need to modify borders.
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2008-03-19
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