jlist.html

API資料大全

       int index,               // cell index
       boolean isSelected,      // is the cell selected
       boolean cellHasFocus)    // the list and the cell have the focus
     {
         String s = value.toString();
         setText(s);
         setIcon((s.length() > 10) ? longIcon : shortIcon);
   	   if (isSelected) {
             setBackground(list.getSelectionBackground());
	       setForeground(list.getSelectionForeground());
	   }
         else {
	       setBackground(list.getBackground());
	       setForeground(list.getForeground());
	   }
	   setEnabled(list.isEnabled());
	   setFont(list.getFont());
         return this;
     }
 }

 String[] data = {"one", "two", "three", "four"};
 JList dataList = new JList(data);
 dataList.setCellRenderer(new MyCellRenderer());
 </pre>
 <p>
 <code>JList</code> doesn't provide any special support for handling double or
 triple (or N) mouse clicks however it's easy to handle them using
 a <code>MouseListener</code>.  Use the <code>JList</code> method 
 <code>locationToIndex()</code> to
 determine what cell was clicked.  For example:
 <pre>
 final JList list = new JList(dataModel);
 MouseListener mouseListener = new MouseAdapter() {
     public void mouseClicked(MouseEvent e) {
         if (e.getClickCount() == 2) {
             int index = list.locationToIndex(e.getPoint());
             System.out.println("Double clicked on Item " + index);
          }
     }
 };
 list.addMouseListener(mouseListener);
 </pre>
 Note that in this example the <code>dataList</code> is <code>final</code>
 because it's referred to by the anonymous <code>MouseListener</code> class.
 <p>
 For the keyboard keys used by this component in the standard look and
 feel (L&F) renditions, see the
 <a href="doc-files/Key-Index.html#JList">JList</a> key assignments.
 <p>
 <strong>Warning:</strong>
 Serialized objects of this class will not be compatible with
 future Swing releases.  The current serialization support is appropriate
 for short term storage or RMI between applications running the same
 version of Swing.  A future release of Swing will provide support for
 long term persistence.

 <p>
 See <a href="http://java.sun.com/docs/books/tutorial/uiswing/components/list.html">How to Use Lists</a>
 in <a href="http://java.sun.com/Series/Tutorial/index.html"><em>The Java Tutorial</em></a>
 for further documentation.
 Also see the article <a href="http://java.sun.com/products/jfc/tsc/tech_topics/jlist_1/jlist.html">Advanced JList Programming</a>
 in <a href="http://java.sun.com/products/jfc/tsc"><em>The Swing Connection</em></a>.
 <p>
<P>
<DL>
<DT><B>See Also: </B><DD><A HREF="../../javax/swing/ListModel.html"><CODE>ListModel</CODE></A>, 
<A HREF="../../javax/swing/AbstractListModel.html"><CODE>AbstractListModel</CODE></A>, 
<A HREF="../../javax/swing/DefaultListModel.html"><CODE>DefaultListModel</CODE></A>, 
<A HREF="../../javax/swing/ListSelectionModel.html"><CODE>ListSelectionModel</CODE></A>, 
<A HREF="../../javax/swing/DefaultListSelectionModel.html"><CODE>DefaultListSelectionModel</CODE></A>, 
<A HREF="../../javax/swing/ListCellRenderer.html"><CODE>ListCellRenderer</CODE></A>, <A HREF="../../serialized-form.html#javax.swing.JList">Serialized Form</A></DL>
<HR>

<P>
<!-- ======== INNER CLASS SUMMARY ======== -->

<A NAME="inner_class_summary"><!-- --></A>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/swing/JList.AccessibleJList.html">JList.AccessibleJList</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This class implements accessibility support for the 
 <code>JList</code> class.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="inner_classes_inherited_from_class_javax.swing.JComponent"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
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<TD><B>Inner classes inherited from class javax.swing.<A HREF="../../javax/swing/JComponent.html">JComponent</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../javax/swing/JComponent.AccessibleJComponent.html">JComponent.AccessibleJComponent</A></CODE></TD>
</TR>
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<TD><B>Inner classes inherited from class java.awt.<A HREF="../../java/awt/Container.html">Container</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../java/awt/Container.AccessibleAWTContainer.html">Container.AccessibleAWTContainer</A></CODE></TD>
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&nbsp;<A NAME="inner_classes_inherited_from_class_java.awt.Component"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
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<TD><B>Inner classes inherited from class java.awt.<A HREF="../../java/awt/Component.html">Component</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../java/awt/Component.AccessibleAWTComponent.html">Component.AccessibleAWTComponent</A></CODE></TD>
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&nbsp;
<!-- =========== FIELD SUMMARY =========== -->

<A NAME="fields_inherited_from_class_javax.swing.JComponent"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
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<TD><B>Fields inherited from class javax.swing.<A HREF="../../javax/swing/JComponent.html">JComponent</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../javax/swing/JComponent.html#accessibleContext">accessibleContext</A>, <A HREF="../../javax/swing/JComponent.html#listenerList">listenerList</A>, <A HREF="../../javax/swing/JComponent.html#TOOL_TIP_TEXT_KEY">TOOL_TIP_TEXT_KEY</A>, <A HREF="../../javax/swing/JComponent.html#ui">ui</A>, <A HREF="../../javax/swing/JComponent.html#UNDEFINED_CONDITION">UNDEFINED_CONDITION</A>, <A HREF="../../javax/swing/JComponent.html#WHEN_ANCESTOR_OF_FOCUSED_COMPONENT">WHEN_ANCESTOR_OF_FOCUSED_COMPONENT</A>, <A HREF="../../javax/swing/JComponent.html#WHEN_FOCUSED">WHEN_FOCUSED</A>, <A HREF="../../javax/swing/JComponent.html#WHEN_IN_FOCUSED_WINDOW">WHEN_IN_FOCUSED_WINDOW</A></CODE></TD>
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<TD><B>Fields inherited from class java.awt.<A HREF="../../java/awt/Component.html">Component</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../java/awt/Component.html#BOTTOM_ALIGNMENT">BOTTOM_ALIGNMENT</A>, <A HREF="../../java/awt/Component.html#CENTER_ALIGNMENT">CENTER_ALIGNMENT</A>, <A HREF="../../java/awt/Component.html#LEFT_ALIGNMENT">LEFT_ALIGNMENT</A>, <A HREF="../../java/awt/Component.html#RIGHT_ALIGNMENT">RIGHT_ALIGNMENT</A>, <A HREF="../../java/awt/Component.html#TOP_ALIGNMENT">TOP_ALIGNMENT</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="fields_inherited_from_class_java.awt.image.ImageObserver"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Fields inherited from interface java.awt.image.<A HREF="../../java/awt/image/ImageObserver.html">ImageObserver</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../java/awt/image/ImageObserver.html#ABORT">ABORT</A>, <A HREF="../../java/awt/image/ImageObserver.html#ALLBITS">ALLBITS</A>, <A HREF="../../java/awt/image/ImageObserver.html#ERROR">ERROR</A>, <A HREF="../../java/awt/image/ImageObserver.html#FRAMEBITS">FRAMEBITS</A>, <A HREF="../../java/awt/image/ImageObserver.html#HEIGHT">HEIGHT</A>, <A HREF="../../java/awt/image/ImageObserver.html#PROPERTIES">PROPERTIES</A>, <A HREF="../../java/awt/image/ImageObserver.html#SOMEBITS">SOMEBITS</A>, <A HREF="../../java/awt/image/ImageObserver.html#WIDTH">WIDTH</A></CODE></TD>
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&nbsp;
<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<TD><CODE><B><A HREF="../../javax/swing/JList.html#JList()">JList</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a <code>JList</code> with an empty model.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../javax/swing/JList.html#JList(javax.swing.ListModel)">JList</A></B>(<A HREF="../../javax/swing/ListModel.html">ListModel</A>&nbsp;dataModel)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a <code>JList</code> that displays the elements in the
 specified, non-null model.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../javax/swing/JList.html#JList(java.lang.Object[])">JList</A></B>(<A HREF="../../java/lang/Object.html">Object</A>[]&nbsp;listData)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a <code>JList</code> that displays the elements in the specified
 array.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../javax/swing/JList.html#JList(java.util.Vector)">JList</A></B>(<A HREF="../../java/util/Vector.html">Vector</A>&nbsp;listData)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a <code>JList</code> that displays the elements in the specified
 <code>Vector</code>.</TD>
</TR>
</TABLE>
&nbsp;
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