Java Swing Tutorial - Java AbstractListModel .fireIntervalRemoved (Object source, int index0, int index1)

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Syntax

AbstractListModel.fireIntervalRemoved(Object source, int index0, int index1) has the following syntax.

protected void fireIntervalRemoved(Object source,   int index0,   int index1)

Example

In the following code shows how to use AbstractListModel.fireIntervalRemoved(Object source, int index0, int index1) method.

/*  w w w. j ava2 s. com*/
import java.awt.Point;
import java.awt.event.MouseEvent;
import java.util.Arrays;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Properties;
import java.util.SortedSet;
import java.util.TreeSet;

import javax.swing.AbstractListModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.ToolTipManager;
import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;

public class Main extends JList {

  SortedListModel model;

  Properties tipProps;

  public Main(Properties props) {
    model = new SortedListModel();
    setModel(model);
    ToolTipManager.sharedInstance().registerComponent(this);

    tipProps = props;
    addProperties(props);
  }

  private void addProperties(Properties props) {
    Enumeration names = props.propertyNames();
    while (names.hasMoreElements()) {
      model.add(names.nextElement());
    }
  }

  public String getToolTipText(MouseEvent event) {
    Point p = event.getPoint();
    int location = locationToIndex(p);
    String key = (String) model.getElementAt(location);
    String tip = tipProps.getProperty(key);
    return tip;
  }

  public static void main(String args[]) {
    JFrame frame = new JFrame("Custom Tip Demo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Properties props = System.getProperties();
    Main list = new Main(props);
    JScrollPane scrollPane = new JScrollPane(list);
    frame.add(scrollPane);
    frame.setSize(300, 300);
    frame.setVisible(true);
  }
}

class SortedListModel extends AbstractListModel {

  SortedSet<Object> model;

  public SortedListModel() {
    model = new TreeSet<Object>();
  }

  public int getSize() {
    return model.size();
  }

  public Object getElementAt(int index) {
    return model.toArray()[index];
  }

  public void add(Object element) {
    if (model.add(element)) {
      fireContentsChanged(this, 0, getSize());
    }
   
  }

  public void addAll(Object elements[]) {
    Collection<Object> c = Arrays.asList(elements);
    model.addAll(c);
    fireContentsChanged(this, 0, getSize());
  }

  public void clear() {
    model.clear();
    fireContentsChanged(this, 0, getSize());
  }

  public boolean contains(Object element) {
    return model.contains(element);
  }

  public Object firstElement() {
    return model.first();
  }

  public Iterator iterator() {
    return model.iterator();
  }

  public Object lastElement() {
    return model.last();
  }

  public boolean removeElement(Object element) {
    boolean removed = model.remove(element);
    if (removed) {
      fireContentsChanged(this, 0, getSize());
    }
    fireIntervalRemoved(element,  0,  getSize()   );    
    return removed;
  }
}

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