Multiline cell table problem

Question

hi all
i found in this forum a class that implements TableCellRenderer and that should allow my table to have multiline cells. i need it because if the content of my cell (retrieved via jdbc from a db) exceeds the cell width is truncated and a "..." appears.
so i searched, i founded and i tried some example but with no results. i don't know where is the mistake, also because the code should work.
i'll post the class code and my table's code and i hope someone could help me!!!
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;
import java.awt.*;
* @version 1.0 11/09/98
public class MultiLineCellRenderer extends JTextArea implements TableCellRenderer {
  public MultiLineCellRenderer() {
    setLineWrap(true);
    setWrapStyleWord(true);
    setOpaque(true);
  public Component getTableCellRendererComponent(JTable table, Object value,
               boolean isSelected, boolean hasFocus, int row, int column) {
    if (isSelected) {
      setForeground(table.getSelectionForeground());
      setBackground(table.getSelectionBackground());
    } else {
      setForeground(table.getForeground());
      setBackground(table.getBackground());
    setFont(table.getFont());
    if (hasFocus) {
      setBorder( UIManager.getBorder("Table.focusCellHighlightBorder") );
      if (table.isCellEditable(row, column)) {
        setForeground( UIManager.getColor("Table.focusCellForeground") );
        setBackground( UIManager.getColor("Table.focusCellBackground") );
    } else {
      setBorder(new EmptyBorder(1, 2, 1, 2));
    setText((value == null) ? "" : value.toString());
    return this;
}i set the new tablecellrenderer in this way:
table.setDefaultRenderer(String.class, new MultiLineCellRenderer() );
        Object[] columns=new Object[]{"Data","Ora","Nome","Referente","Indirizzo","Citt�","Telefono","Motivazione","App. con"};
        JTableHeader k=new JTableHeader();
        table.setTableHeader(k);
        table.setModel(new javax.swing.table.DefaultTableModel (o,columns)
                Class[] types = new Class [] {
                    java.lang.Object.class, java.lang.Object.class, java.lang.Object.class, java.lang.Object.class
         anyone could help me?
thanx a lot

Answer 1

thanx to all my friends, but i still have my problem..
viravan, i'm using the same MultiLineCellRenderer class as the example, the only thing different is my class from where i set the MultiLineCellRenderer the default Renderer for my table
this is the code: (i post it because i didn't found any significant difference between the example class and the one of mine...) i suspect there is some problem in the table setting... but i don't know where...
import java.lang.Thread;
import java.sql.*;
import java.util.Vector;
import java.text.*;
import javax.swing.table.*;
public class AppTablePainter implements Runnable
    Thread t;
    DateFormat date;
    public AppTablePainter()
        t=new Thread(this);
        t.start();
    public void run()
        paint();
    void paint()
        Statement s=null;
        Vector clienti=new Vector();
        Vector appIl=new Vector();
        Vector hours=new Vector();
        Vector referenti=new Vector();
        Vector indirizzi=new Vector();
        Vector telefoni=new Vector();
        Vector citta=new Vector();
        Vector motivazioni=new Vector();
        Vector appCon=new Vector();
        Vector commerciali=new Vector();
        Vector commenti=new Vector();
        Vector ids=new Vector();       
        Vector tempCommerciali= new Vector();
        date=Jtm.date;
        String action="SELECT * FROM CONTATTI WHERE COMMERCIALE='"+Appuntamenti.cCommerciale.getSelectedItem()+"' AND APPUNTAMENTO_IL IS NOT NULL";
        //System.out.println(action);
        try
            s=Jtm.tmc.createStatement();
            ResultSet rs=s.executeQuery(action);           
            java.util.Date appDate;
            DateFormat appHour=new SimpleDateFormat("HH:mm");
            appHour.setLenient(false);
            String get=null;
            Appuntamenti.sp.set("Recupero appuntamenti in corso...");
            int maximum=0;
            while(rs.next())
                 try
                    maximum++;
                    get=rs.getString("appuntamento_il");                     
                    appDate=date.parse(get);               
                    String stringDate=date.format(appDate);                                       
                    if(!appDate.before(Jtm.now))
                        String id=rs.getString("id");
                        ids.add(id);  
                        appIl.add(get);                       
                        try
                            hours.add(appHour.format(appHour.parse(rs.getString("ore"))));                       
                        catch(ParseException p)
                            hours.add("23:00");
                        catch (NullPointerException np)
                            hours.add("23:01");
                catch(SQLException sq)
                    //JOptionPane.showMessageDialog(this, sq.getMessage(), "",JOptionPane.ERROR_MESSAGE);
                    sq.printStackTrace();
                catch(NullPointerException n){}
                catch(ParseException p)  //se la data non � parseable � perch� � nulla visto che c'� un controllo all'inserimento
                    //System.out.println("parseException "+get);
                    //JOptionPane.showMessageDialog(this, p.getMessage(), "",JOptionPane.ERROR_MESSAGE);
                    //p.printStackTrace();
            Appuntamenti.sp.progBar.setMaximum(maximum);
        catch(SQLException sq)
            sq.printStackTrace();
        catch(NullPointerException n)
            n.printStackTrace();
        /*System.out.println("prima ordinamento:");
        for(int i=0; i<ids.size();i++)
            System.out.println("id "+ids.get(i).toString()+", data app "+appIl.get(i).toString()+", ore "+hours.get(i).toString());
        for(int i=0; i<ids.size(); i++)
            System.out.println("ids("+i+")= "+ids.get(i).toString());
        for(int i=0; i<appIl.size(); i++)
            System.out.println("appIl("+i+")= "+appIl.get(i).toString());
        for(int i=0; i<hours.size(); i++)
            System.out.println("hours("+i+")= "+hours.get(i).toString());
        myAppArray[] dateArr=new myAppArray[appIl.size()];
        Appuntamenti.sp.set("Inizio ordinamento in corso");
        Appuntamenti.sp.progBar.setMaximum(appIl.size());
        for(int i=0; i<dateArr.length; i++)
            Appuntamenti.sp.progBar.setValue(i);
            dateArr=new myAppArray(ids.get(i).toString(),appIl.get(i).toString(),hours.get(i).toString());
java.util.Arrays.sort(dateArr, new ArrayAppDateComparator());
Vector newIds=new Vector();
for(int i=0; i< dateArr.length; i++)
myAppArray temp=dateArr[i];
//System.out.println("data: "+temp.getDate()+", ora: "+temp.getHour()+" id: "+temp.getId());
newIds.add(temp.getId());
appIl.clear();
hours.clear();
commerciali.clear();
clienti.clear();
commenti.clear();
try
Appuntamenti.sp.set("Recupero informazioni...");
Appuntamenti.sp.progBar.setValue(0);
Statement s1=Jtm.tmc.createStatement();
for(int i=0; i<newIds.size(); i++)
Appuntamenti.sp.progBar.setValue(i);
String tempId=newIds.get(i).toString();
//System.out.println("tempId: "+tempId);
ResultSet rs1=s1.executeQuery("select * from contatti where id="+tempId);
if(rs1.next())
appIl.add(rs1.getString("appuntamento_il"));
hours.add(rs1.getString("ore"));
clienti.add(rs1.getString("nome"));
referenti.add(rs1.getString("referente"));
indirizzi.add(rs1.getString("indirizzo"));
citta.add(rs1.getString("citta"));
telefoni.add(rs1.getString("telefono"));
motivazioni.add(rs1.getString("motivazione"));
appCon.add(rs1.getString("appuntamento_con"));
catch(SQLException sq)
sq.printStackTrace();
Object[][] o=new Object[ids.size()][9];
System.out.println("o.length: "+o.length);
String dataAppuntamento="";
for(int i=0; i<o.length; i++)
try
String tempData=appIl.get(i).toString();
if(tempData.equals(dataAppuntamento))
o[i][0]="";
else
dataAppuntamento=tempData;
o[i][0]=dataAppuntamento;
catch(NullPointerException n){o[i][0]="";}
for(int i=0; i<o.length; i++)
try
o[i][1]=hours.get(i).toString();
catch(NullPointerException n){o[i][1]="";}
for(int i=0; i<o.length; i++)
try
o[i][2]=clienti.get(i).toString();
catch(NullPointerException n){o[i][2]="";}
for(int i=0; i<o.length; i++)
try
o[i][3]=referenti.get(i).toString();
catch(NullPointerException n){o[i][3]="";}
for(int i=0; i<o.length; i++)
try
o[i][4]=indirizzi.get(i).toString();
catch(NullPointerException n){o[i][4]="";}
for(int i=0; i<o.length; i++)
try
o[i][5]=citta.get(i).toString();
catch(NullPointerException n){o[i][5]="";}
for(int i=0; i<o.length; i++)
try
o[i][6]=telefoni.get(i).toString();
catch(NullPointerException n){o[i][6]="";}
for(int i=0; i<o.length; i++)
try
o[i][7]=motivazioni.get(i).toString();
catch(NullPointerException n){o[i][7]="";}
for(int i=0; i<o.length; i++)
try
o[i][8]=appCon.get(i).toString();
catch(NullPointerException n){o[i][8]="";}
System.out.println("height: "+Appuntamenti.table.getRowHeight());
System.out.println("olenght: "+o.length);
System.out.println("risultato: "+ (Appuntamenti.table.getRowHeight() * o.length));
Appuntamenti.table.setRowHeight( Appuntamenti.table.getRowHeight());
//Appuntamenti.table.setRowHeight(16);
Appuntamenti.table.setDefaultRenderer(String.class, new MultiLineCellRenderer() );
Object[] columns=new Object[]{"Data","Ora","Nome","Referente","Indirizzo","Citt�","Telefono","Motivazione","App. con"};
JTableHeader k=new JTableHeader();
Appuntamenti.table.setTableHeader(k);
Appuntamenti.table.setModel(new javax.swing.table.DefaultTableModel (o,columns)
Class[] types = new Class [] {
java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class
TableColumnModel tcm = Appuntamenti.table.getColumnModel();
TableColumn data = tcm.getColumn(0);
TableColumn ora = tcm.getColumn(1);
TableColumn cliente = tcm.getColumn(2);
TableColumn referente = tcm.getColumn(3);
TableColumn indirizzo = tcm.getColumn(4);
TableColumn citt = tcm.getColumn(5);
TableColumn telefono = tcm.getColumn(6);
TableColumn motivazione = tcm.getColumn(7);
TableColumn appcon = tcm.getColumn(8);
System.out.println("data "+data.getPreferredWidth());
System.out.println("ora "+ora.getPreferredWidth());
System.out.println("cliente "+cliente.getPreferredWidth());
System.out.println("referente "+referente.getPreferredWidth());
System.out.println("indirizzo "+indirizzo.getPreferredWidth());
System.out.println("citt "+citt.getPreferredWidth());
System.out.println("telefono "+telefono.getPreferredWidth());
System.out.println("motivazione "+motivazione.getPreferredWidth());
System.out.println("appcon "+appcon.getPreferredWidth());
data.setPreferredWidth(700);
ora.setPreferredWidth(350);
cliente.setPreferredWidth(1000);
referente.setPreferredWidth(1000);
indirizzo.setPreferredWidth(1300);
citt.setPreferredWidth(1000);
telefono.setPreferredWidth(1000);
motivazione.setPreferredWidth(1500);
appcon.setPreferredWidth(1000);
//data.setCellRenderer(new MultiLineTableCellRenderer());
//cliente.setCellRenderer(new MultiLineTableCellRenderer().getTableCellRendererComponent());
Appuntamenti.lTotale.setText(Integer.toString(o.length));
Appuntamenti.ids=newIds;
Appuntamenti.sp.mostra();
Appuntamenti.sp.dispose();
//Integer[] integerIds=Integer.ids.toArray();
for(int i=0; i<dateArr.length; i++)
System.out.println("dateArr["+i+"]= "+date.format(dateArr[i]));
java.util.Arrays.sort(dateArr);
for(int i=0; i<dateArr.length; i++)
System.out.println("ordinato dateArr["+i+"]= "+date.format(dateArr[i]));
class myAppArray
private String id;
private String date;
private String hour;
public myAppArray(String id, String date, String hour)
this.id=id;
this.date=date;
this.hour=hour;
public String getDate()
return date;
public String getHour()
return hour;
public String getId()
return id;
class ArrayAppDateComparator implements java.util.Comparator
private DateFormat date=Jtm.date;
private DateFormat hour=new SimpleDateFormat("HH:mm");
public int compare(Object o1, Object o2)
hour.setLenient(false);
myAppArray s1 = (myAppArray)o1;
myAppArray s2 = (myAppArray)o2;
java.util.Date d1=null;
java.util.Date d2=null;
java.util.Date h1=null;
java.util.Date h2=null;
try
d1 = date.parse(s1.getDate());
d2 = date.parse(s2.getDate());
catch(ParseException pe)
pe.printStackTrace();
if(!d1.equals(d2))
return d1.compareTo(d2);
else
try
h1 = hour.parse(s1.getHour());
h2 = hour.parse(s2.getHour());
catch(ParseException pe)
pe.printStackTrace();
return h1.compareTo(h2);