÷÷÷÷÷÷＝闹完了，向大家请教一个和JList有关的问题＝÷÷÷÷÷÷

Question

能给我也发份么？谢谢
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Answer 1

不错，我也沾点光吧。
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Answer 2

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.event.ListSelectionListener;
import java.util.EventListener;
import javax.swing.event.ListSelectionEvent;public class NewList extends JList implements ListSelectionListener
{
int sel[];
boolean manualset;
public void setSelectedIndices(int a[])
{
manualset=true;
System.out.println("NewList.setSelectedIndices");
if(a!=null)
super.setSelectedIndices(a);
else
this.clearSelection();
sel = a;
}
public NewList()
{
addMouseListener(new MouseAdapter()
{
public void mousePressed(MouseEvent me)
{
if(me.getClickCount()<2)
return;
               JList list = (JList) me.getSource();
               int index = list.locationToIndex(me.getPoint());
               int oldsel[]=list.getSelectedIndices();
               int newsel[];
               if(list.isSelectedIndex(index))
               {
                //list.setSelectedIndices(int[] indices)
                newsel=new int[oldsel.length-1];
                int j=0;
                for(int i=0;i<oldsel.length;i++)
                {
                if(oldsel[i]!=index)
                {
                newsel[j]=oldsel[i];
                j++;
                }
                }
               }
               else
               {
                newsel=new int[oldsel.length+1];
                if(oldsel.length>0)
                System.arraycopy(oldsel,0,newsel,0,oldsel.length);
                newsel[oldsel.length]=index;              
               }
list.setSelectedIndices(newsel);
               Rectangle rect = list.getCellBounds(index, index);
               list.repaint(rect);

}
});
addListSelectionListener(this);
}
public static void main(String args[])
{
JFrame frame=new JFrame("new list test");
NewList newlist=new NewList();
String[] listdata={"item1","item2","item3"};

newlist.setListData(listdata); frame.getContentPane().add(newlist);
frame.setSize(400,400);
frame.setVisible(true);
frame.show();
}
boolean reset=false;
public void valueChanged(ListSelectionEvent e) 
{
if(reset==true)
{
return;
}
reset=true;
if(!manualset)
{
if(sel!=null) super.setSelectedIndices(sel);
else
clearSelection();
}
manualset=false;
reset=false;
//System.out.println("valueChanged");
}
}

Answer 3

高手在前，不容我放肆，哈哈。
masterz的搞法很好，但迂回曲折（right？）。
我想从javax.swing.plaf.basic.basiclistui入手，但是没实现，masterz能再想想办法吗？

Answer 4

等弄好了一定给俺一份啊~~~俺也给分
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