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<div class="header">
<div class="subTitle">com.mxgraph.swing.handler</div>
<h2 title="Class mxConnectionHandler" class="title">Class mxConnectionHandler</h2>
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<pre>public class <span class="strong">mxConnectionHandler</span>
extends <a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html" title="class in com.mxgraph.swing.util">mxMouseAdapter</a></pre>
<div class="block">Connection handler creates new connections between cells. This control is used to display the connector
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icon, while the preview is used to draw the line.
mxEvent.CONNECT fires between begin- and endUpdate in mouseReleased. The <code>cell</code>
property contains the inserted edge, the <code>event</code> and <code>target</code>
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properties contain the respective arguments that were passed to mouseReleased.</div>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#active">active</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Rectangle.html?is-external=true" title="class or interface in java.awt">Rectangle</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#bounds">bounds</a></strong></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Cursor.html?is-external=true" title="class or interface in java.awt">Cursor</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#CONNECT_CURSOR">CONNECT_CURSOR</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="http://download.oracle.com/javase/1.5.0/docs/api/javax/swing/ImageIcon.html?is-external=true" title="class or interface in javax.swing">ImageIcon</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#connectIcon">connectIcon</a></strong></code>
<div class="block">Specifies the icon to be used for creating new connections.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../com/mxgraph/swing/handler/mxConnectPreview.html" title="class in com.mxgraph.swing.handler">mxConnectPreview</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#connectPreview">connectPreview</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#createTarget">createTarget</a></strong></code>
<div class="block">Specifies if the source should be cloned and used as a target if no
target was selected.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#enabled">enabled</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#error">error</a></strong></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../com/mxgraph/util/mxEventSource.html" title="class in com.mxgraph.util">mxEventSource</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#eventSource">eventSource</a></strong></code>
<div class="block">Holds the event source.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Point.html?is-external=true" title="class or interface in java.awt">Point</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#first">first</a></strong></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../com/mxgraph/swing/mxGraphComponent.html" title="class in com.mxgraph.swing">mxGraphComponent</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#graphComponent">graphComponent</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#handleEnabled">handleEnabled</a></strong></code>
<div class="block">Specifies if a handle should be used for creating new connections.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#handleSize">handleSize</a></strong></code>
<div class="block">Specifies the size of the handle to be used for creating new
connections.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#keepOnTop">keepOnTop</a></strong></code>
<div class="block">Appearance and event handling order wrt subhandles.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../com/mxgraph/swing/handler/mxCellMarker.html" title="class in com.mxgraph.swing.handler">mxCellMarker</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#marker">marker</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../com/mxgraph/util/mxEventSource.mxIEventListener.html" title="interface in com.mxgraph.util">mxEventSource.mxIEventListener</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#resetHandler">resetHandler</a></strong></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#select">select</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../com/mxgraph/view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#source">source</a></strong></code>&nbsp;</td>
</tr>
</table>
</li>
</ul>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#mxConnectionHandler(com.mxgraph.swing.mxGraphComponent)">mxConnectionHandler</a></strong>(<a href="../../../../com/mxgraph/swing/mxGraphComponent.html" title="class in com.mxgraph.swing">mxGraphComponent</a>&nbsp;graphComponent)</code>&nbsp;</td>
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</table>
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<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#addGraphListeners(com.mxgraph.view.mxGraph)">addGraphListeners</a></strong>(<a href="../../../../com/mxgraph/view/mxGraph.html" title="class in com.mxgraph.view">mxGraph</a>&nbsp;graph)</code>
<div class="block">Installs the listeners to update the handles after any changes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#addListener(java.lang.String, com.mxgraph.util.mxEventSource.mxIEventListener)">addListener</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;eventName,
<a href="../../../../com/mxgraph/util/mxEventSource.mxIEventListener.html" title="interface in com.mxgraph.util">mxEventSource.mxIEventListener</a>&nbsp;listener)</code>
<div class="block">Adds the given event listener.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../com/mxgraph/swing/handler/mxConnectPreview.html" title="class in com.mxgraph.swing.handler">mxConnectPreview</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#createConnectPreview()">createConnectPreview</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#createTargetVertex(java.awt.event.MouseEvent, java.lang.Object)">createTargetVertex</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e,
<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;source)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/javax/swing/ImageIcon.html?is-external=true" title="class or interface in javax.swing">ImageIcon</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#getConnecIcon()">getConnecIcon</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../com/mxgraph/swing/handler/mxConnectPreview.html" title="class in com.mxgraph.swing.handler">mxConnectPreview</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#getConnectPreview()">getConnectPreview</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#getHandleSize()">getHandleSize</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../com/mxgraph/swing/handler/mxCellMarker.html" title="class in com.mxgraph.swing.handler">mxCellMarker</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#getMarker()">getMarker</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isActive()">isActive</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isConnecting()">isConnecting</a></strong>()</code>
<div class="block">Returns true if the source terminal has been clicked and a new
connection is currently being previewed.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isCreateTarget()">isCreateTarget</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isEnabled()">isEnabled</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isHandleEnabled()">isHandleEnabled</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isHighlighting()">isHighlighting</a></strong>()</code>
<div class="block">Returns true if no connectIcon is specified and handleEnabled is false.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isKeepOnTop()">isKeepOnTop</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isSelect()">isSelect</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isValidSource(java.lang.Object)">isValidSource</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;cell)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#isValidTarget(java.lang.Object)">isValidTarget</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;cell)</code>
<div class="block">Returns true.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#mouseDragged(java.awt.event.MouseEvent)">mouseDragged</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#mouseMoved(java.awt.event.MouseEvent)">mouseMoved</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#mousePressed(java.awt.event.MouseEvent)">mousePressed</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#mouseReleased(java.awt.event.MouseEvent)">mouseReleased</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#paint(java.awt.Graphics)">paint</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Graphics.html?is-external=true" title="class or interface in java.awt">Graphics</a>&nbsp;g)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#removeGraphListeners(com.mxgraph.view.mxGraph)">removeGraphListeners</a></strong>(<a href="../../../../com/mxgraph/view/mxGraph.html" title="class in com.mxgraph.view">mxGraph</a>&nbsp;graph)</code>
<div class="block">Removes all installed listeners.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#removeListener(com.mxgraph.util.mxEventSource.mxIEventListener)">removeListener</a></strong>(<a href="../../../../com/mxgraph/util/mxEventSource.mxIEventListener.html" title="interface in com.mxgraph.util">mxEventSource.mxIEventListener</a>&nbsp;listener)</code>
<div class="block">Removes the given event listener.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#removeListener(com.mxgraph.util.mxEventSource.mxIEventListener, java.lang.String)">removeListener</a></strong>(<a href="../../../../com/mxgraph/util/mxEventSource.mxIEventListener.html" title="interface in com.mxgraph.util">mxEventSource.mxIEventListener</a>&nbsp;listener,
<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;eventName)</code>
<div class="block">Removes the given event listener for the specified event name.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#reset()">reset</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setBounds(java.awt.Rectangle)">setBounds</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Rectangle.html?is-external=true" title="class or interface in java.awt">Rectangle</a>&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setConnectIcon(javax.swing.ImageIcon)">setConnectIcon</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/javax/swing/ImageIcon.html?is-external=true" title="class or interface in javax.swing">ImageIcon</a>&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setConnectPreview(com.mxgraph.swing.handler.mxConnectPreview)">setConnectPreview</a></strong>(<a href="../../../../com/mxgraph/swing/handler/mxConnectPreview.html" title="class in com.mxgraph.swing.handler">mxConnectPreview</a>&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setCreateTarget(boolean)">setCreateTarget</a></strong>(boolean&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setEnabled(boolean)">setEnabled</a></strong>(boolean&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setHandleEnabled(boolean)">setHandleEnabled</a></strong>(boolean&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setHandleSize(int)">setHandleSize</a></strong>(int&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setKeepOnTop(boolean)">setKeepOnTop</a></strong>(boolean&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setMarker(com.mxgraph.swing.handler.mxCellMarker)">setMarker</a></strong>(<a href="../../../../com/mxgraph/swing/handler/mxCellMarker.html" title="class in com.mxgraph.swing.handler">mxCellMarker</a>&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#setSelect(boolean)">setSelect</a></strong>(boolean&nbsp;value)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#start(java.awt.event.MouseEvent, com.mxgraph.view.mxCellState)">start</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e,
<a href="../../../../com/mxgraph/view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/swing/handler/mxConnectionHandler.html#validateConnection(java.lang.Object, java.lang.Object)">validateConnection</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;source,
<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;target)</code>
<div class="block">Returns the error message or an empty string if the connection for the
given source target pair is not valid.</div>
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<code><a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html#mouseClicked(java.awt.event.MouseEvent)">mouseClicked</a>, <a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html#mouseEntered(java.awt.event.MouseEvent)">mouseEntered</a>, <a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html#mouseExited(java.awt.event.MouseEvent)">mouseExited</a></code></li>
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<code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</a></code></li>
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<pre>public static&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Cursor.html?is-external=true" title="class or interface in java.awt">Cursor</a> CONNECT_CURSOR</pre>
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<pre>protected&nbsp;<a href="../../../../com/mxgraph/swing/mxGraphComponent.html" title="class in com.mxgraph.swing">mxGraphComponent</a> graphComponent</pre>
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<pre>protected&nbsp;<a href="../../../../com/mxgraph/util/mxEventSource.html" title="class in com.mxgraph.util">mxEventSource</a> eventSource</pre>
<div class="block">Holds the event source.</div>
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<pre>protected&nbsp;<a href="../../../../com/mxgraph/swing/handler/mxConnectPreview.html" title="class in com.mxgraph.swing.handler">mxConnectPreview</a> connectPreview</pre>
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<pre>protected&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/javax/swing/ImageIcon.html?is-external=true" title="class or interface in javax.swing">ImageIcon</a> connectIcon</pre>
<div class="block">Specifies the icon to be used for creating new connections. If this is
specified then it is used instead of the handle. Default is null.</div>
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<pre>protected&nbsp;int handleSize</pre>
<div class="block">Specifies the size of the handle to be used for creating new
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<pre>protected&nbsp;boolean handleEnabled</pre>
<div class="block">Specifies if a handle should be used for creating new connections. This
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is only used if no connectIcon is specified. If this is false, then the
source cell will be highlighted when the mouse is over the hotspot given
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in the marker. Default is mxConstants.CONNECT_HANDLE_ENABLED.</div>
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<pre>protected&nbsp;boolean select</pre>
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<h4>createTarget</h4>
<pre>protected&nbsp;boolean createTarget</pre>
<div class="block">Specifies if the source should be cloned and used as a target if no
target was selected. Default is false.</div>
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<pre>protected&nbsp;boolean keepOnTop</pre>
<div class="block">Appearance and event handling order wrt subhandles.</div>
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<pre>protected&nbsp;boolean enabled</pre>
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<pre>protected transient&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Point.html?is-external=true" title="class or interface in java.awt">Point</a> first</pre>
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<pre>protected transient&nbsp;boolean active</pre>
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<pre>protected transient&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Rectangle.html?is-external=true" title="class or interface in java.awt">Rectangle</a> bounds</pre>
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<pre>protected transient&nbsp;<a href="../../../../com/mxgraph/view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a> source</pre>
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<pre>protected transient&nbsp;<a href="../../../../com/mxgraph/swing/handler/mxCellMarker.html" title="class in com.mxgraph.swing.handler">mxCellMarker</a> marker</pre>
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<pre>protected transient&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> error</pre>
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<pre>protected transient&nbsp;<a href="../../../../com/mxgraph/util/mxEventSource.mxIEventListener.html" title="interface in com.mxgraph.util">mxEventSource.mxIEventListener</a> resetHandler</pre>
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<pre>public&nbsp;mxConnectionHandler(<a href="../../../../com/mxgraph/swing/mxGraphComponent.html" title="class in com.mxgraph.swing">mxGraphComponent</a>&nbsp;graphComponent)</pre>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>graphComponent</code> - </dd></dl>
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<pre>protected&nbsp;void&nbsp;addGraphListeners(<a href="../../../../com/mxgraph/view/mxGraph.html" title="class in com.mxgraph.view">mxGraph</a>&nbsp;graph)</pre>
<div class="block">Installs the listeners to update the handles after any changes.</div>
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<pre>protected&nbsp;void&nbsp;removeGraphListeners(<a href="../../../../com/mxgraph/view/mxGraph.html" title="class in com.mxgraph.view">mxGraph</a>&nbsp;graph)</pre>
<div class="block">Removes all installed listeners.</div>
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<pre>protected&nbsp;<a href="../../../../com/mxgraph/swing/handler/mxConnectPreview.html" title="class in com.mxgraph.swing.handler">mxConnectPreview</a>&nbsp;createConnectPreview()</pre>
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<pre>public&nbsp;<a href="../../../../com/mxgraph/swing/handler/mxConnectPreview.html" title="class in com.mxgraph.swing.handler">mxConnectPreview</a>&nbsp;getConnectPreview()</pre>
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<pre>public&nbsp;void&nbsp;setConnectPreview(<a href="../../../../com/mxgraph/swing/handler/mxConnectPreview.html" title="class in com.mxgraph.swing.handler">mxConnectPreview</a>&nbsp;value)</pre>
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<pre>public&nbsp;boolean&nbsp;isConnecting()</pre>
<div class="block">Returns true if the source terminal has been clicked and a new
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<pre>public&nbsp;boolean&nbsp;isActive()</pre>
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<pre>public&nbsp;boolean&nbsp;isHighlighting()</pre>
<div class="block">Returns true if no connectIcon is specified and handleEnabled is false.</div>
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<pre>public&nbsp;void&nbsp;setEnabled(boolean&nbsp;value)</pre>
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<pre>public&nbsp;boolean&nbsp;isKeepOnTop()</pre>
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<pre>public&nbsp;void&nbsp;setKeepOnTop(boolean&nbsp;value)</pre>
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<pre>public&nbsp;void&nbsp;setConnectIcon(<a href="http://download.oracle.com/javase/1.5.0/docs/api/javax/swing/ImageIcon.html?is-external=true" title="class or interface in javax.swing">ImageIcon</a>&nbsp;value)</pre>
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<pre>public&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/javax/swing/ImageIcon.html?is-external=true" title="class or interface in javax.swing">ImageIcon</a>&nbsp;getConnecIcon()</pre>
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<pre>public&nbsp;<a href="../../../../com/mxgraph/swing/handler/mxCellMarker.html" title="class in com.mxgraph.swing.handler">mxCellMarker</a>&nbsp;getMarker()</pre>
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<pre>public&nbsp;void&nbsp;setSelect(boolean&nbsp;value)</pre>
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<pre>public&nbsp;boolean&nbsp;isSelect()</pre>
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<pre>public&nbsp;void&nbsp;reset()</pre>
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<h4>createTargetVertex</h4>
<pre>public&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;createTargetVertex(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e,
<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;source)</pre>
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<pre>public&nbsp;boolean&nbsp;isValidSource(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;cell)</pre>
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<pre>public&nbsp;boolean&nbsp;isValidTarget(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;cell)</pre>
<div class="block">Returns true. The call to mxGraph.isValidTarget is implicit by calling
Initial version, 1.10.0.5 release
2012-05-21 20:32:26 +00:00
mxGraph.getEdgeValidationError in validateConnection. This is an
2.5.1.0 release
2014-04-01 11:30:48 +00:00
additional hook for disabling certain targets in this specific handler.</div>
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<h4>validateConnection</h4>
<pre>public&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;validateConnection(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;source,
<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;target)</pre>
<div class="block">Returns the error message or an empty string if the connection for the
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<pre>public&nbsp;void&nbsp;mousePressed(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e)</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseListener.html?is-external=true#mousePressed(java.awt.event.MouseEvent)" title="class or interface in java.awt.event">mousePressed</a></code>&nbsp;in interface&nbsp;<code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseListener.html?is-external=true" title="class or interface in java.awt.event">MouseListener</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html#mousePressed(java.awt.event.MouseEvent)">mousePressed</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html" title="class in com.mxgraph.swing.util">mxMouseAdapter</a></code></dd>
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<pre>public&nbsp;void&nbsp;start(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e,
<a href="../../../../com/mxgraph/view/mxCellState.html" title="class in com.mxgraph.view">mxCellState</a>&nbsp;state)</pre>
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<pre>public&nbsp;void&nbsp;mouseMoved(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e)</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseMotionListener.html?is-external=true#mouseMoved(java.awt.event.MouseEvent)" title="class or interface in java.awt.event">mouseMoved</a></code>&nbsp;in interface&nbsp;<code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseMotionListener.html?is-external=true" title="class or interface in java.awt.event">MouseMotionListener</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html#mouseMoved(java.awt.event.MouseEvent)">mouseMoved</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html" title="class in com.mxgraph.swing.util">mxMouseAdapter</a></code></dd>
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<pre>public&nbsp;void&nbsp;mouseDragged(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e)</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseMotionListener.html?is-external=true#mouseDragged(java.awt.event.MouseEvent)" title="class or interface in java.awt.event">mouseDragged</a></code>&nbsp;in interface&nbsp;<code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseMotionListener.html?is-external=true" title="class or interface in java.awt.event">MouseMotionListener</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html#mouseDragged(java.awt.event.MouseEvent)">mouseDragged</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html" title="class in com.mxgraph.swing.util">mxMouseAdapter</a></code></dd>
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<pre>public&nbsp;void&nbsp;mouseReleased(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseEvent.html?is-external=true" title="class or interface in java.awt.event">MouseEvent</a>&nbsp;e)</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseListener.html?is-external=true#mouseReleased(java.awt.event.MouseEvent)" title="class or interface in java.awt.event">mouseReleased</a></code>&nbsp;in interface&nbsp;<code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseListener.html?is-external=true" title="class or interface in java.awt.event">MouseListener</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html#mouseReleased(java.awt.event.MouseEvent)">mouseReleased</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/swing/util/mxMouseAdapter.html" title="class in com.mxgraph.swing.util">mxMouseAdapter</a></code></dd>
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<pre>public&nbsp;void&nbsp;setBounds(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Rectangle.html?is-external=true" title="class or interface in java.awt">Rectangle</a>&nbsp;value)</pre>
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<pre>public&nbsp;void&nbsp;addListener(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;eventName,
<a href="../../../../com/mxgraph/util/mxEventSource.mxIEventListener.html" title="interface in com.mxgraph.util">mxEventSource.mxIEventListener</a>&nbsp;listener)</pre>
<div class="block">Adds the given event listener.</div>
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<pre>public&nbsp;void&nbsp;removeListener(<a href="../../../../com/mxgraph/util/mxEventSource.mxIEventListener.html" title="interface in com.mxgraph.util">mxEventSource.mxIEventListener</a>&nbsp;listener)</pre>
<div class="block">Removes the given event listener.</div>
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<pre>public&nbsp;void&nbsp;removeListener(<a href="../../../../com/mxgraph/util/mxEventSource.mxIEventListener.html" title="interface in com.mxgraph.util">mxEventSource.mxIEventListener</a>&nbsp;listener,
<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;eventName)</pre>
<div class="block">Removes the given event listener for the specified event name.</div>
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<h4>paint</h4>
<pre>public&nbsp;void&nbsp;paint(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Graphics.html?is-external=true" title="class or interface in java.awt">Graphics</a>&nbsp;g)</pre>
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