JList with few imageIcon

I need a few imageIcon in a single JList. I was trying to get help from "The Java Tutorial" but failed.
If someone know please tell me the method.
Thanks in advance.

There is no trick to doing this. You simply add multiple ImageIcons to the ListModel.
If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its original formatting.

Similar Messages

JList with ImageIcon

Hello,
Can I have JList with an ImageIcon beside it?e.g
"imageicon" "sometext"
code snippet would be helpful.
Thanks

Hello,
little improvement-update, custom ListCellRenderer now checks whether object is a String only or a JLabel with an ImageImage. You can use it for both versions of JLists.
import javax.swing.*;
import java.awt.*;
public class ImageTextList extends JFrame
     private static String[]text = new String[10];
     private static JLabel[]labels = new JLabel[text.length];
     private static ImageIcon[] icons = new ImageIcon[labels.length];
     static
          for(int i=0; i<text.length; i++)
               text[i]   = "Images " + (i+1);
               icons[i] = new ImageIcon(     "../testproject/img/" + (i+1) + ".jpg");
               labels[i] = new JLabel(text, icons[i], JLabel.CENTER);
     public static void main(String[] args)
          new ImageTextList();
     public ImageTextList()
          super("Image+Text in a JList");
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          //test with labels and text
          JList list = new JList(labels);
          list.setCellRenderer(new MyCellRenderer());
          getContentPane().add(new JScrollPane(list));
          pack();
          setLocationRelativeTo(null);
          setVisible(true);
     class MyCellRenderer extends JLabel implements ListCellRenderer
          private JLabel label = null;
          // This is the only method defined by ListCellRenderer.
          // We just reconfigure the JLabel each time we're called.
          public Component getListCellRendererComponent(
               JList list,
               Object value,
          // value to display
          int index, // cell index
          boolean isSelected, // is the cell selected
          boolean cellHasFocus) // the list and the cell have the focus
               String s = value.toString();
               ImageIcon icon = null;
               //checks whether the source is a label or another object(String only)
               if(value instanceof JLabel)
               {System.out.println("label");
                    label = (JLabel)value;
                    icon = (ImageIcon)label.getIcon();
                    s = label.getText();
               setText(s);
               setIcon(icon);
               if (isSelected)
                    setBackground(list.getSelectionBackground());
                    setForeground(list.getSelectionForeground());
               } else
                    setBackground(list.getBackground());
                    setForeground(list.getForeground());
               setEnabled(list.isEnabled());
               setFont(list.getFont());
               setOpaque(true);
               return this;
regards
Tim

JList with aligned pictures

What would be the best way to make a JList with a picture for each item?
I have all the pictures loaded as ImageIcons btw.

Write a custom list renderer, see http://java.sun.com/j2se/1.4.1/docs/api/javax/swing/ListCellRenderer.html
Then, to get the text aligned, you'll need to use the setIconTextGap method of JLabel. If the maximum icon width is 16 and your current icon is 13 pixels wide, then just set the icon-text-gab to 3.
Something like this:
import java.awt.*;
import javax.swing.*;
public class Dummy
     public static void main(String [] args)
          JList list = new JList(new Object[]{
               new JLabel("small", new ImageIcon("d:/java/resources/java logo 16x16.png"), JLabel.LEFT),
               new JLabel("large", new ImageIcon("d:/java/resources/java logo 32x32.png"), JLabel.LEFT)
          list.setCellRenderer(new MyCellRenderer());
          JFrame f = new JFrame();
          f.getContentPane().add(list);
          f.setSize(400,400);
          f.setVisible(true);
     static class MyCellRenderer extends JLabel implements ListCellRenderer
          public MyCellRenderer()
               setOpaque(true);
          public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus)
               JLabel label = (JLabel)value;
               setText(label.getText());
               setIconTextGap(4 + 32 - label.getIcon().getIconWidth());
               setIcon(label.getIcon());
               setBackground(isSelected ? Color.red : Color.white);
               setForeground(isSelected ? Color.white : Color.black);
               return this;

Populating JList with a single database column

Hi all,
I have the following code and i'm trying to popluate the JList with a particular colum from my MySQL Database..
how do i go about doing it??
Can some one please help
import java.awt.*; import java.awt.event.*; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import javax.swing.*; public class RemoveD extends JDialog { private JList list; private JButton removeButton; private JScrollPane scrollPane; private Connection conn = null; private Statement stat = null; public RemoveD(Frame parent, boolean modal) { super(parent, modal); initComponents(); } private void initComponents() { scrollPane = new JScrollPane(); list = new JList(); removeButton = new JButton(); setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); getContentPane().setLayout(new GridLayout(2, 0)); scrollPane.setViewportView(list); getContentPane().add(scrollPane); removeButton.setText("Remove"); removeButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent evt) { removeButtonActionPerformed(evt); } }); getContentPane().add(removeButton); pack(); try { Class.forName("com.mysql.jdbc.Driver"); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } try { String userID = ""; String psw = ""; String url; url = "jdbc:mysql://localhost:3306/names"; conn = DriverManager.getConnection(url, userID, psw); stat = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); stat.close(); conn.close(); } catch (SQLException ex) { ex.printStackTrace(); } } private void removeButtonActionPerformed(ActionEvent evt) { } public static void main(String args[]) { EventQueue.invokeLater(new Runnable() { public void run() { RemoveD dialog = new RemoveD(new JFrame(), true); dialog.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); dialog.setVisible(true); } }); } }

I figured out how to do it

JTable/jlist with word wrapping cells?

Hello all,
I got a simple looking problem but i can't seem to find any working solution for it:
A jtable or jlist with cells that wordwrap text (cells differ in height).
I found many examples on groups.google and this forum but they all seem to suffer a 100% processor load when 2 or more cells differ in height.
Can anyone point me to a working example?
Kind regards,
Twan

Thanks! That's a real live saver.
I had been looking for a solution for several days, strange google did not yet found the mentioned page, cause it contains usefull information.
I've just implemented the multiline table and it works without any problems and most important without 100% cpu usage.
The bucks are comming your way ;-)

Help with updating imageIcon in JTable

Hi All
Please I am hoping that some out there will know what is going on with this
I am setting a Cell with a ImageIcon with this code
        Object[] data = {
            rSet.getString(1),
            new ImageIcon("imagesTest/" + "check" + rSet.getString(2) + ".png"),
            rSet.getString(2),
            "yes",
            rSet.getString(3)};
        model.addRow(data);and this work fine as I have this set to the table
      public Class getColumnClass(int c) {
        return getValueAt(1, c).getClass();
      }Now I want to update the ImageIcon with a new image that I create
and I am trying to set the new ImageIcon to the cell with this code
      model.setValueAt(new ImageIcon("imagesTest/" + "check" +table.getValueAt
(table.getSelectedRow(), 2) +".png"), table.getSelectedRow(), 1);but it does not want to paint it
I have tried
repaint();
super.repaint();
revalidate();I have also tried reloading the data by removing all the rows in the model with this
    model.setRowCount(0);
   then reloading the data.
It seams like it holds ImageIcom in memory or something .
Has anyone got an idea on how I can get this to work
p.s I don't have the full code to show as it is hard to pull it apart.
I hope I have given enough code to so you what is going on.
Thanks for any insight into this
Craig

You should write an appropriate cell renderer.
If the cell is defined editable, you'd also need cell editor.

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last year i was able to populate a JList with data from a database
however this year something doesnt work
this is last year
public String[] getOnderwerpen()
System.out.println(theConnection==null?" connection null ":" connection niet null ");
String []locaties = new String[30];
ArrayList returnLijst;
returnLijst = new ArrayList();
ArrayList arraylist;
arraylist = new ArrayList();
          String[] deLocaties = null;
try{
String onderwerpQuery = "SELECT OnderwerpID FROM Onderwerp order by OnderwerpID";
Statement statement = theConnection.createStatement();
System.out.println(statement==null?" statement null ":" statement niet null ");
statement.execute(onderwerpQuery);
ResultSet result = statement.getResultSet();
System.out.println(result==null?" ResultSet null ":" ResultSet niet null ");
int i = 0;
               while(result.next())
          //          locaties[i] = result.getString("OnderwerpID");
locaties[i] = result.getString("OnderwerpID");
                                        i++;
deLocaties = new String;
          for (int j=0;j<deLocaties.length;j++)
               deLocaties[j] = locaties[j];
          sorteerStringArray(deLocaties);
}//end-try
catch (Exception e) {
e.printStackTrace();
return deLocaties;
& this is what i did this year
public String[] getbedrijfNaam()
          String[] bedrijfsNamen = new String[Constanten.aantalBedrijven];
          String[] deBedrijfsNamen = null;
     System.out.println(theConnection==null?" connection null ":" connection niet null ");
     System.out.println("test this");
     try{
     String onderwerpQuery = "SELECT naam FROM organisatie";
     Statement statement = theConnection.createStatement();
     System.out.println(statement==null?" statement null ":" statement niet null ");
     statement.execute(onderwerpQuery);
     ResultSet result = statement.getResultSet();
     int i = 0;
                    while(result.next())
                         bedrijfsNamen[i] = result.getString();
                                             i++;
                    deBedrijfsNamen = new String[i];
               for (int j=0;j<deBedrijfsNamen.length;j++)
                    deBedrijfsNamen[j] = bedrijfsNamen[j];
               sorteerStringArray(deBedrijfsNamen);
               statement.close();
               //theConnection.close();
     }//end-try
     catch (Exception e) {
     e.printStackTrace();
     return deBedrijfsNamen;
is there something here thats not right
or does this no longer work because of the changes made in 1.5

last year i was able to populate a JList with data from a database
however this year something doesnt work
this is last year
public String[] getOnderwerpen()
System.out.println(theConnection==null?" connection null ":" connection niet null ");
String []locaties = new String[30];
ArrayList returnLijst;
returnLijst = new ArrayList();
ArrayList arraylist;
arraylist = new ArrayList();
          String[] deLocaties = null;
try{
String onderwerpQuery = "SELECT OnderwerpID FROM Onderwerp order by OnderwerpID";
Statement statement = theConnection.createStatement();
System.out.println(statement==null?" statement null ":" statement niet null ");
statement.execute(onderwerpQuery);
ResultSet result = statement.getResultSet();
System.out.println(result==null?" ResultSet null ":" ResultSet niet null ");
int i = 0;
               while(result.next())
          //          locaties[i] = result.getString("OnderwerpID");
locaties[i] = result.getString("OnderwerpID");
                                        i++;
deLocaties = new String;
          for (int j=0;j<deLocaties.length;j++)
               deLocaties[j] = locaties[j];
          sorteerStringArray(deLocaties);
}//end-try
catch (Exception e) {
e.printStackTrace();
return deLocaties;
& this is what i did this year
public String[] getbedrijfNaam()
          String[] bedrijfsNamen = new String[Constanten.aantalBedrijven];
          String[] deBedrijfsNamen = null;
     System.out.println(theConnection==null?" connection null ":" connection niet null ");
     System.out.println("test this");
     try{
     String onderwerpQuery = "SELECT naam FROM organisatie";
     Statement statement = theConnection.createStatement();
     System.out.println(statement==null?" statement null ":" statement niet null ");
     statement.execute(onderwerpQuery);
     ResultSet result = statement.getResultSet();
     int i = 0;
                    while(result.next())
                         bedrijfsNamen[i] = result.getString();
                                             i++;
                    deBedrijfsNamen = new String[i];
               for (int j=0;j<deBedrijfsNamen.length;j++)
                    deBedrijfsNamen[j] = bedrijfsNamen[j];
               sorteerStringArray(deBedrijfsNamen);
               statement.close();
               //theConnection.close();
     }//end-try
     catch (Exception e) {
     e.printStackTrace();
     return deBedrijfsNamen;
is there something here thats not right
or does this no longer work because of the changes made in 1.5

Resizing a JList with variable row heights, not updating the "picture"

Firstly I would like to apologize for posting this Swing question here, but I was unable to find the Swing category, if someone could direct me to that I would be most grateful.
Ok, so in abstract what I am trying to do is have a JList with resizable rows to act as a row header for a JTable (exactly like the row headers in OO Calc or MS Excel).
What I have is a RowHeaderRenderer:
public class RowHeaderRenderer extends JLabel implements ListCellRendererand it has a private member:
private Vector<Integer>        _rowHeights            = new Vector<Integer>();which contains a list of all the variable row heights.
Then there is my getListCellRendererComponent method:
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                                                      Object        value,
                                                      int           index,
                                                      boolean       isSelected,
                                                      boolean       cellHasFocus)
        // Make sure the value is not null
        if(value == null)
            this.setText("");
        else
            this.setText(value.toString());
        // This is where height of the row is actually changed
        // This method is fed values from the _rowHeights vector
        this.setPreferredSize(new Dimension(this.getPreferredSize().width, _rowHeights.elementAt(index)));
        return this;
    }And then I have a row header:
public class RowHeader extends JList implements TableModelListener, MouseListener, MouseMotionListenerand you may be interested in its constructor:
    public RowHeader(JTable table)
        _table = table;
        _rowHeaderRenderer = new RowHeaderRenderer(_table);
        this.setFixedCellWidth                        (50);
        this.setCellRenderer                        (_rowHeaderRenderer);
        // TODO: grab this value from the parent view table
        JScrollPane panel = new JScrollPane();
        this.setBackground(panel.getBackground());
        this.addMouseMotionListener                    (this);
        this.addMouseListener                        (this);
        this.setModel                                (new DefaultListModel());
        table.getModel().addTableModelListener        (this);
        this.tableChanged                            (new TableModelEvent(_table.getModel()));
    }and as you can see from my mouse dragged event:
    public void mouseDragged(MouseEvent e)
        if(_resizing == true)
            int resizingRowHeight = _rowHeaderRenderer.getRowHeight(_resizingRow);
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            _cursorPreviousY = e.getPoint().y;
    }all I am doing is passing the rowHeaderRenderer the values the currently resizing row should be, which works fine. The values are being changed and are accurate.
The issue I am having is that while this dragging is going on the row does not appear to be resizing. In other words the "picture" of the row remains unchanged even though I change the values in the renderer. I tried calling:
this.validate();and
this.repaint();at the end of that mousedDragged method, but to no avail, neither of them worked.
Again, I verified that I am passing the correct data in the RowHeaderRenderer.
So, anyone have any ideas how I should get the image of the RowHeader (JList) to update after calling my MouseDragged event?
Thank you for your time,
Brandon

I was able to fix this some time ago. Here is the solution:
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          if(_resizing == true)
               int newHeight = _previousHeight + (e.getPoint().y - _cursorPreviousY);
               if(newHeight < _minRowHeight)
                    newHeight = _minRowHeight;
               _rowHeaderRenderer.setRowHeight(_resizingRow, newHeight);
               _table.setRowHeight(_resizingRow, newHeight);
          this.updateUI();
     }

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In APO 7.0 the CFSTKE* Queues with few entries executing for long durations (10 hrs)
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Hi Aravind,
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If yes then ask your Basis team to run ST04 and see what index it is using,
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Builiding stat may help if a read on table is taking long time and index which is being picked up is correct.
Your basis team should be able to help you.
I hope it helps.
Thanks,
Anupam
Edited by: Anupam Sengar on Aug 11, 2011 12:06 AM

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hi all,
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thanks!
mykro

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i am writing a look and feel .
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here is an example
(please select the third item 'ccccccccccccccc')
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.border.LineBorder;
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    pack();
public static void main(String[] args){
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}

ok, thanks now this works on the demo also for me.
but when settings my UI ,i get same result
i want this border no mater what Render the user will put
this is what i do
import java.awt.Color;
import java.awt.Component;
import java.awt.ComponentOrientation;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JComponent;
import javax.swing.JList;
import javax.swing.ListCellRenderer;
import javax.swing.ListModel;
import javax.swing.ListSelectionModel;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicListUI;
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import org.jtpc.gui.defaultTheme.FocusBorderHandler;
import org.jtpc.utils.JTPCThemeManager;
public class JTPCListUI extends BasicListUI{
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EmptyBorder m_borderDeselected = new EmptyBorder(new Insets(3, 3, 3, 3));
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        cx += (cw - w);
      cw = w;
    rendererPane.paintComponent(g, rendererComponent, list, cx, cy, cw, ch, true);
class JTPCListCellRenderer extends DefaultListCellRenderer {
    public Component   getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
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}Edited by: shay_te on 17:34 15/05/2010

JList with few imageIcon

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