jtable in combobox
Hi,
a have a table that works perfect with cell editing, add a new empty row and delete a row when using the table inside a JPanel. But I want to show it in a JCombobox.
With code I found in this forum I was able to add the table to a combobox. Now the problem is that editing cells of the table doesn't work.
I tried various listeners, renderers and editors for the combox and the popup bit no success.
The problem could be that table never gains focus:
getTableCellRendererComponent(...) always gets hasFocus=false
Any help ?
table
publicclass MyTabelle
extends JTable{
staticfinalint DATE = 0;
staticfinalint DOUBLE = 1;
static String defaultText[] =new String[]{
" . ."," , "};
DBListe dBliste =null;
MyTableModel model =new MyTableModel();
int editRow = 0;
int editColumn = 0;
boolean falseEdit =false;
public MyTabelle (){
setModel(model);
setDefaultRenderer(models.Date.class,new MyRenderer(DATE));
setDefaultRenderer(Double.class,new MyRenderer(DOUBLE));
setDefaultEditor(models.Date.class,new MyCellEditor(DATE));
setDefaultEditor(Double.class,new MyCellEditor(DOUBLE));
setListe(getListe());
}
/**
* Die Liste der anzuzeigenden Daten setzen.
*/
publicvoid setListe (DBListe liste){
this.dBliste = liste;
model.setListe(liste);
}
publicvoid addLine (){
model.addLine();
}
publicvoid removeLine(){
model.removeLine(getSelectedRow());
}
/**
* TableModel der Tabelle
*/
class MyTableModel
extends AbstractTableModel{
String[] columnNames;
ArrayList data;
Class[] classNames;
public MyTableModel (){
setTableData();
}
privatevoid setTableData (){
columnNames =new String[0];
data =new ArrayList();
classNames =new Class[0];
}
publicvoid setListe (DBListe liste){
if (liste ==null || liste.size() == 0){
setTableData();
}
else{
data.clear();
DBObject o = (DBObject) liste.get(0);
columnNames = o.getColumnNames();
if (columnNames ==null){
setTableData();
}
else{
int l = liste.size();
for (int i = 0; i < l; i++){
data.add(((DBObject) liste.get(i)).getData());
}
classNames =new Class[(o.getData().size())];
l = o.getData().size();
for (int i = 0; i < l; i++){
classNames[i] = o.getData().get(i).getClass();
}
}
}
fireTableStructureChanged();
}
public String getColumnName (int col){
return columnNames[col];
}
publicint getColumnCount (){
return columnNames ==null ? 0 : columnNames.length;
}
publicint getRowCount (){
return data.size();
}
public Class getColumnClass (int c){
return classNames[c];
}
public Object getValueAt (int aRow,int aColumn){
ArrayList row = (ArrayList) data.get(aRow);
return row.get(aColumn);
}
publicboolean isCellEditable (int rowIndex,int columnIndex){
returntrue;
}
publicvoid addLine (){
int cols = getColumnCount();
ArrayList li =new ArrayList();
for (int i = 0; i < cols; i++){
li.add("");
}
data.add(li);
fireTableStructureChanged();
}
publicvoid removeLine (int row){
data.remove(row);
fireTableStructureChanged();
}
publicvoid updateCell (Object newVal,int r,int c){
ArrayList row = (ArrayList) data.get(r);
row.set(c, newVal);
fireTableStructureChanged();
}
}
/**
* CellEditor der Tabelle
*/
publicclass MyCellEditor
extends DefaultCellEditor{
int type;
public MyCellEditor (int type){
super(type == DATE ? (JTextField)new DatumFeld() :
new DoubleFeld(DoubleFeld.STUNDEN));
this.type = type;
}
public Component getTableCellEditorComponent (
JTable table, Object value,boolean isSelected,int row,int column){
editRow = row;
editColumn = column;
return super.getTableCellEditorComponent(
table, value, isSelected, row, column);
}
publicboolean stopCellEditing (){
Object value =null;
try{
switch (type){
case DATE:
DatumFeld dateF = (DatumFeld) getComponent();
value =new models.Date(dateF.getText());
break;
case DOUBLE:
DoubleFeld doubF = (DoubleFeld) getComponent();
value =new Double(doubF.getValue());
break;
}
model.updateCell(value, editRow, editColumn);
falseEdit =false;
return super.stopCellEditing();
}
catch (Exception ex){
super.stopCellEditing();
falseEdit =true;
returnfalse;
}
}
}
/**
* Renderer der Tabelle
*/
class MyRenderer
extends DefaultTableCellRenderer{
SimpleDateFormat df =new SimpleDateFormat("dd.MM.yyyy");
int type;
public MyRenderer (int type){
this.type = type;
}
public Component getTableCellRendererComponent (
JTable table, Object value,boolean isSelected,boolean hasFocus,
int row,int column){
if (isSelected && hasFocus){
if (falseEdit){
table.editCellAt(editRow, editColumn);
((DefaultCellEditor) table.getCellEditor(editRow, editColumn)).
getComponent().requestFocus();
}
else{
table.editCellAt(row, column);
((DefaultCellEditor) table.getCellEditor(row, column)).
getComponent().requestFocus();
}
}
else{
this.setValue(value, row, column);
}
returnthis;
}
protectedvoid setValue (Object value,int row,int column){
if (value ==null || value.toString().equals("")){
setText(defaultText[type]);
}
else{
switch (type){
case DATE:
try{
setText(df.format(df.parse(value.toString())));
}
catch (ParseException ex){
}
break;
case DOUBLE:
setText(APSFormate.doubleFormat(((Double) value).doubleValue()));
break;
}
}
}
}
private DBListe getListe(){
DBListe liste =new DBListe();
try{
Wiedereingliederung w =new Wiedereingliederung();
w.setBeginn(new models.Date("01.08.2007"));
w.setEnde(new models.Date("31.08.2007"));
w.setStunden(6.0);
liste.add(w);
w =new Wiedereingliederung();
w.setBeginn(new models.Date("01.09.2007"));
w.setEnde(new models.Date("30.08.2007"));
w.setStunden(12.2);
liste.add(w);
w =new Wiedereingliederung();
w.setBeginn(new models.Date("01.10.2007"));
w.setEnde(new models.Date("31.10.2007"));
w.setStunden(18.5);
liste.add(w);
}
catch (Exception ex){
}
return liste;
}
}
Frame with combobox
publicclass ComboWithTableextends JComboBox
implements ActionListener, ListSelectionListener{
ButtonPanel buttonPanel =new ButtonPanel();
MyTabelle table =new MyTabelle();
MyPopup myPopup =null;
int rowSelected = -1;
int columnSelected = -1;
public ComboWithTable(){
this.setUI(new MyComboBoxUI(this));
addItem("Wiedereingliederung");
buttonPanel.addActionListener(this);
table.getSelectionModel().addListSelectionListener(this);
}
publicvoid valueChanged (ListSelectionEvent e){
rowSelected = table.getSelectedRow() ;
columnSelected = table.getSelectedColumn();
// ... ?
}
publicvoid actionPerformed(ActionEvent e){
if (e.getActionCommand().equals("Neu")){
table.addLine();
}
if (e.getActionCommand().equals("Lschen")){
table.removeLine();
}
if (e.getActionCommand().equals("Schlieen")){
myPopup.hide();
}
}
class MyComboBoxUIextends BasicComboBoxUI{
JComboBox comboBox;
public MyComboBoxUI (JComboBox combo){
this.comboBox = combo;
}
protected ComboPopup createPopup(){
myPopup =new MyPopup (comboBox);
return myPopup;
}
}
class MyPopupextends BasicComboPopup{
JComboBox comboBox;
public MyPopup (JComboBox combo){
super(combo);
this.comboBox = combo;
removeAll();
add(buildUI());
}
private JPanel buildUI(){
JPanel panel =new JPanel(new BorderLayout());
JScrollPane pane =new JScrollPane(table);
panel.add(pane, BorderLayout.CENTER);
panel.add(buttonPanel, BorderLayout.SOUTH);
return panel;
}
}
publicstaticvoid main (String[] args){
JFrame f =new JFrame();
JPanel panel =new JPanel(new BorderLayout());
panel.add(new ComboWithTable());
f.getContentPane().add(panel, BorderLayout.CENTER);
f.pack();
f.setLocation(300, 300);
f.show();
}
}
