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<html><head><TITLE>Description of IndexedGsMixin</TITLE><BASE TARGET="_parent" ></head>
<body BGCOLOR=#FFFFFF>
<FONT FACE=Helvetica>
<DL><DT>
<FONT SIZE=4>
class
</FONT>
<FONT SIZE=5><B>IndexedGsMixin</B></FONT>
<A HREF="index.html">(Return to index)</A>
<br><br>
<DD><FONT FACE=Times SIZE=4>
mixin for graphic-state indexing mechanism used by <A HREF="OverlayIdrawComp.html" >OverlayIdrawComp</A>, etc..<br><br>
<B>Type:</B><br>
<UL>
Instantiable
</UL>
<br>
<A HREF=derivedclasses.html#IndexedGsMixin><B>Derived Classes</B></A>
<p>
<B>Include file:</B><br>
<UL><FONT FACE=Helvetica SIZE=3>
OverlayUnidraw/indexmixins.h
</FONT></UL>
<br>
<B>Description:</B><P> When a tree of graphical components is saved to disk (translated to ASCII), the
graphic states are output first as 'gs' records, to allow for replicated graphic
states to appear only once in a file. When reading these documents back in,
the istream constructor of <A HREF="OverlayIdrawComp.html" >OverlayIdrawComp</A> (and other top-level components) uses
this mixin to manage a table of graphic states, building it up as each 'gs'
record is read, and accessing entries for each ":gs id" field found in subsequent
records.
<br><br>
</DL></FONT>
<FONT FACE=Times SIZE=4><B>Public:</B></FONT><br><br><UL>
<DT><FONT FACE=Helvetica>
<A NAME="IndexedGsMixin()">
<B>IndexedGsMixin</B> () </FONT>
<DD><FONT FACE=Times SIZE=3><UL>
<br>
</UL></FONT><br>
<DT><FONT FACE=Helvetica><A HREF="Graphic.html" >Graphic</A>*
<A NAME="get_indexed_gs(intid)">
<B>get_indexed_gs</B> (int id) </FONT>
<DD><FONT FACE=Times SIZE=3><UL>
retrieve graphic state by 'id'.
<br>
<br>
</UL></FONT><br>
<DT><FONT FACE=Helvetica>void
<A NAME="grow_indexed_gs(Graphic*)">
<B>grow_indexed_gs</B> (<A HREF="Graphic.html" >Graphic</A>*) </FONT>
<DD><FONT FACE=Times SIZE=3><UL>
add graphic state to table.
<br>
<br>
</UL></FONT><br>
<DT><FONT FACE=Helvetica>void
<A NAME="reset_indexed_gs()">
<B>reset_indexed_gs</B> () </FONT>
<DD><FONT FACE=Times SIZE=3><UL>
reset graphic state table.
<br>
<br>
</UL></FONT><br>
</UL><br><br>
<FONT FACE=Times SIZE=4><B>Protected:</B></FONT><br><br><UL>
<DT><FONT FACE=Helvetica><A HREF="Picture.html" >Picture</A>*
<A NAME="_gslist">
<B>_gslist</B>
<DD><FONT FACE=Times SIZE=3><UL>
<br>
</UL></FONT><br>
</UL><br><br>
<A HREF="../index.html">(more documentation)</A>
<br><br>
</FONT>
</body>
</html>
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