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  HREF="node14.html">2. The GNUstep Markup</A>  </B>
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  HREF="node22.html">2.8 Connector tag reference</A> </B>
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<H1><A NAME="SECTION00390000000000000000">
2.9 Example</A>
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<P>
FIXME: this example should be replaced with a better one.

<P>
FIXME: add examples of advanced outlets.

<P>
<PRE>
&lt;?xml version="1.0"?&gt;
&lt;!DOCTYPE gsmarkup&gt;
&lt;gsmarkup&gt;

&lt;objects&gt;
 &lt;!-- the main window --&gt;
 &lt;window title="Calculator" resizable="no" closable="no"&gt;

   &lt;vbox&gt;

     &lt;textfield editable="no" id="TextField" /&gt;

     &lt;hbox&gt;
      &lt;button title="1" target="#Controller" action="digit:" /&gt;
      &lt;button title="2" target="#Controller" action="digit:" /&gt;
      &lt;button title="3" target="#Controller" action="digit:" /&gt;
     &lt;/hbox&gt;

     &lt;hbox&gt;
      &lt;button title="4" target="#Controller" action="digit:" /&gt;
      &lt;button title="5" target="#Controller" action="digit:" /&gt;
      &lt;button title="6" target="#Controller" action="digit:" /&gt;
     &lt;/hbox&gt;

     &lt;hbox&gt;
      &lt;button title="7" target="#Controller" action="digit:" /&gt;
      &lt;button title="8" target="#Controller" action="digit:" /&gt;
      &lt;button title="9" target="#Controller" action="digit:" /&gt;
     &lt;/hbox&gt;

     &lt;hbox&gt;
      &lt;button title="+" target="#Controller" action="add:" /&gt;
      &lt;button title="0" target="#Controller" action="digit:" /&gt;
      &lt;button title="=" target="#Controller" action="total:" /&gt;
     &lt;/hbox&gt;

   &lt;/vbox&gt;

 &lt;/window&gt;

 &lt;!-- an object of a custom class, which is instantiated when the nib
      is loaded.  Key-value coding is used to set textField to #TextField.
      In other words, the textField attribute is equivalent to having a
      NSNibOutletConnector with source #Controller, target #TextField, 
      and key textField --&gt;
 &lt;instance instanceOf="CalculatorController" id="Controller" 
           textField="#TextField" /&gt;

&lt;/objects&gt;


&lt;!-- in this example, connectors are not actually needed (or better
     all connectors are embedded in the objects section) - but we add
     the connectors section as an example.  --&gt;
&lt;connectors&gt;

 &lt;!-- an example of a standalone connector, needed to connect the Controller
      to the controller ivar (or setController: method) of the NSOwner (the
      object which loaded the nib).  This connector must be standalone
      because #NSOwner is not inside the nib.  (you can reference objects
      totally outside the nib in a connector, which are provided by the
      nameTable dictionary when the nib is loaded) --&gt;
 &lt;outlet source="#NSOwner" target="#Controller" key="controller" /&gt;

&lt;/connectors&gt;

&lt;/gsmarkup&gt;
</PRE>
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2008-03-19
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