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<HTML><HEAD><TITLE>LinkItem</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.53"><LINKREL="HOME"TITLE="Documentation Set for Swarm 2.1.1"HREF="set.html"><LINKREL="UP"TITLE="Gui Library"HREF="swarm.gui.sgml.reference.html"><LINKREL="PREVIOUS"TITLE="Line"HREF="swarm.gui.line.protocol.html"><LINKREL="NEXT"TITLE="MessageProbeEntry"HREF="swarm.gui.messageprobeentry.protocol.html"></HEAD><BODYCLASS="REFENTRY"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><DIVCLASS="NAVHEADER"><TABLEWIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">Documentation Set for Swarm 2.1.1</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="swarm.gui.line.protocol.html">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Reference VIII. Gui Library</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="swarm.gui.messageprobeentry.protocol.html">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SWARM.GUI.LINKITEM.PROTOCOL">LinkItem</A></H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN19694"></A><H2>Name</H2>LinkItem -- A canvas item for displaying a link between two nodes.</DIV><DIVCLASS="REFSECT1"><ANAME="AEN19697"></A><H2>Description</H2><P> A CompositeCanvasItem for displaying a link between two NodeItems.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN19700"></A><H2>Protocols adopted by LinkItem</H2><P> <AHREF="swarm.gui.compositeitem.protocol.html">CompositeItem</A> <AHREF="swarm.defobj.creatable.protocol.html">CREATABLE</A></P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN19705"></A><H2>Methods</H2><DIVCLASS="REFSECT2"><ANAME="AEN19707"></A><H3>Phase: Creating</H3><P></P><UL><LI><DIVCLASS="FUNCSYNOPSIS"><ANAME="SWARM.GUI.LINKITEM.METHOD.PC.M762"></A><P></P>- <BCLASS="FUNCPROTOTYPE">setFrom:</B> <VARCLASS="PDPARAM">from</VAR> <BR> Designate the node that will be the source of the link.<P></P></DIV></LI><LI><DIVCLASS="FUNCSYNOPSIS"><ANAME="SWARM.GUI.LINKITEM.METHOD.PC.M884"></A><P></P>- <BCLASS="FUNCPROTOTYPE">setTo:</B> <VARCLASS="PDPARAM">to</VAR> <BR> Designate the node that will be the destination of the link.<P></P></DIV></LI><LI><DIVCLASS="FUNCSYNOPSIS"><ANAME="SWARM.GUI.LINKITEM.METHOD.PC.M233"></A><P></P>- <BCLASS="FUNCPROTOTYPE">createItem</B><BR> Create a the lines that make up the link item.<P></P></DIV></LI><LI><DIVCLASS="FUNCSYNOPSIS"><ANAME="SWARM.GUI.LINKITEM.METHOD.PC.M223"></A><P></P>- <BCLASS="FUNCPROTOTYPE">createBindings</B><BR> A LinkItem is passive; disable the mouse bindings.<P></P></DIV></LI></UL></DIV><DIVCLASS="REFSECT2"><ANAME="AEN19744"></A><H3>Phase: Using</H3><P></P><UL><LI><DIVCLASS="FUNCSYNOPSIS"><ANAME="SWARM.GUI.LINKITEM.METHOD.PU.M705"></A><P></P>- <BCLASS="FUNCPROTOTYPE">setColor:</B> (const char *)<VARCLASS="PDPARAM">aColor</VAR> <BR> Set the color of the link.<P></P></DIV></LI><LI><DIVCLASS="FUNCSYNOPSIS"><ANAME="SWARM.GUI.LINKITEM.METHOD.PU.M935"></A><P></P>- <BCLASS="FUNCPROTOTYPE">update</B><BR> Redraw the link (especially due to the motion of nodes).<P></P></DIV></LI><LI><DIVCLASS="FUNCSYNOPSIS"><ANAME="SWARM.GUI.LINKITEM.METHOD.PU.M264"></A><P></P>- (void)<BCLASS="FUNCPROTOTYPE">drop</B><BR> Delete the lines that make up a LinkItem.<P></P></DIV></LI></UL></DIV></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLEWIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="swarm.gui.line.protocol.html">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="set.html">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="swarm.gui.messageprobeentry.protocol.html">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Line</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="swarm.gui.sgml.reference.html">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">MessageProbeEntry</TD></TR></TABLE></DIV></BODY></HTML>⌨️ 快捷键说明
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