Selection event for double-clicking an item in the list : JList « Swing « Java Tutorial






  1. Java Tutorial
  2. Swing
  3. JList

public int locationToIndex(Point location) in JList: map screen coordinates to list elements

Selection event for double-clicking an item in the list
import java.awt.BorderLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;

public class JListLocationToIndexSample {
  public static void main(String args[]) {
    String labels[] = { "A", "B", "C", "D", "E", "F", "G", "H" };
    JFrame frame = new JFrame("Selecting JList");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JList jlist = new JList(labels);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1, BorderLayout.CENTER);

    MouseListener mouseListener = new MouseAdapter() {
      public void mouseClicked(MouseEvent mouseEvent) {
        JList theList = (JList) mouseEvent.getSource();
        if (mouseEvent.getClickCount() == 2) {
          int index = theList.locationToIndex(mouseEvent.getPoint());
          if (index >= 0) {
            Object o = theList.getModel().getElementAt(index);
            System.out.println("Double-clicked on: " + o.toString());
          }
        }
      }
    };
    jlist.addMouseListener(mouseListener);

    frame.setSize(350, 200);
    frame.setVisible(true);
  }
}








14.40.JList
14.40.1.JList
14.40.2.Creating JList Components
14.40.3.Using JListUsing JList
14.40.4.A container for pseud codeA container for pseud code
14.40.5.Storing value in Vector and adding them into JListStoring value in Vector and adding them into JList
14.40.6.Set selected indexSet selected index
14.40.7.Modifying the Data ModelModifying the Data Model
14.40.8.Using DefaultListModel to control the Data in a JListUsing DefaultListModel to control the Data in a JList
14.40.9.Sharing the Data Model for a JComboBox and JListSharing the Data Model for a JComboBox and JList
14.40.10.Using a Custom Data ModelUsing a Custom Data Model
14.40.11.Listening to JList Events with a ListSelectionListenerListening to JList Events with a ListSelectionListener
14.40.12.Using ListDataListener to listen to ListModel EventsUsing ListDataListener to listen to ListModel Events
14.40.13.Selection event for double-clicking an item in the listSelection event for double-clicking an item in the list
14.40.14.public Point indexToLocation(int index): returning a Point as the origin of the provided indexpublic Point indexToLocation(int index): returning a Point as the origin of the provided index
14.40.15.Setting the number of visible rows with setVisibleRowCount()Setting the number of visible rows with setVisibleRowCount()
14.40.16.To programmatically move the list to the topTo programmatically move the list to the top
14.40.17.ListSelectionModel ModesListSelectionModel Modes
14.40.18.Selection MethodsSelection Methods
14.40.19.To make multiple list selections, you can use the anchor and lead indices of the selection items.To make multiple list selections, you can use the anchor and lead indices of the selection items.
14.40.20.Adding Element-Level Tooltips to List ItemsAdding Element-Level Tooltips to List Items
14.40.21.Bench mark for JListBench mark for JList
14.40.22.Customizing a JList Look and Feel
14.40.23.Get index of first visible item
14.40.24.Get index of last visible item
14.40.25.Arranging Items in a JList Component
14.40.26.Setting a Tool Tip for an Item in a JList Component
14.40.27.Detecting Double and Triple Clicks on an Item in a JList Component
14.40.28.Methods are used to find an item
14.40.29.Use drag and drop to reorder a list
14.40.30.These methods can be used to find the range of visible items