Editing WoW:XML/Frame (section)

== Summary ==

[[XML/Frame|Frame]] based elements facilitate 'Layout', 'Appearance' and 'Behaviour' mechanisms for the WoW UI at runtime. When used with <[[XML/Scripts|Scripts]]> along with the <[[XML/Anchors|Anchors]]> and the <'''Size'''> element from [[XML/LayoutFrame|LayoutFrame]], allows WoW to 'Layout' all of its visible and make them interactive and responsive, including the 3D views of the world. Frame works by providing a flexible set of layout and scripting constructs. Frames also provide a sophisicated 'Z order' based layering system, both in <[[XML/Layers|Layers]]> element and between the frames themselves.

=== Example ===
 <[[XML/Frame|Frame]] name="MyFrameTemplate" hidden="true" virtual="true"/>
 <[[XML/Frame|Frame]] name="MyFrame" inherits="MyFrameTemplate">
   <[[XML/Dimension|Size]] x="400" y="400"/>
   <[[XML/Frames|Frames]]>
     <[[XML/Frame|Frame]] name="$parentChild" parentKey="child">
       <[[XML/Dimension|Size]] x="200" y="100"/>
       <[[XML/Anchors|Anchors]]>
         <[[XML/Anchor|Anchor]] point="TOP">
           <[[XML/Dimension|Offset]]>
             <[[XML/AbsDimension|AbsDimension]] x="0" y="-22" />
           </Offset>
         </Anchor>
       </Anchors>
     </Frame>
   </Frames>
 </Frame>

This example will align the top of the 'child' frame to the top of 'MyFrame', and then offset that alignment by -22 vertically. Also demonstrates use of Dimension with '''Size''' and [[XML/Anchor|Anchor]], and using '''Abs''' and '''inline''' values, as well as use of '$parent' to specify the name of the child where the child 'name' will be 'MyFrameChild' at runtime. Finally this example shows use of 'inherits' and 'virtual' where 'MyFrameTemplate' is inherited by 'MyFrame' causing 'MyFrame' to inherit 'hidden' from 'MyFrameTemplate' making 'MyFrame' hidden by default. At runtime, you can refer to the child frame as either <tt>MyFrameChild</tt> or <tt>MyFrame.child</tt>.