How to make a custom CellEditor register changes without loss of focus?

[Rachel Swailes]

Hi there

I have written my own component that is kind of like a checkbox, called a SelectableComponent. I am busy putting this into various tables and I would like to ask a question about the custom cell editor that I'm using to edit
the component in the table.

To give you a quick overview, the SelectableComponent has two boolean values, isSelectable and isSelected.

If the SelectableComponent.isSelectable() then the renderer shows a checkbox in the table. Else it shows a blank label.

If the SelectableComponent.isSelectable(), then the editor is placed on the cell.

Now the problem I am having is that it is working as far as I can click on the cells to get them to change their value and as I click the checkbox selects and unselects. However, I need this clicking to be registered with another table that tally's totals, and this change at the moment registers only when the row that I am clicking on loses focus.

How can I make this change in selection fire the event without having to lose the focus?

Many kind regards,
Rachel

public class SelectableComponentEditor extends JCheckBox implements TableCellEditor{
 
private SelectableComponent selCom;
private boolean originalBoolean;
protected Vector listeners;

public SelectableComponentEditor(){
listeners = new Vector();
}

public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, 

 
int row, int column) {

if(value == null) return this;

if(value.getClass() == SelectableComponent.class){

selCom = (SelectableComponent) value;

setSelected(selCom.isSelected());

originalBoolean = isSelected();

setHorizontalAlignment(JLabel.CENTER);
setForeground(table.getSelectionForeground());
      setBackground(table.getSelectionBackground());      
      
      table.setRowSelectionInterval(row,row);
      
      return this;
}

stopCellEditing();
return this;
}

public void cancelCellEditing(){fireEditingCanceled();}

public boolean stopCellEditing(){
fireEditingStopped();
return true;
}

public Object getCellEditorValue(){

SelectableComponent sc = new SelectableComponent(selCom.isSelectable(), isSelected());
return sc;
}

public boolean isCellEditable(EventObject oe){return true;}

public boolean shouldSelectCell(EventObject ev) { return false;}

public void addCellEditorListener(CellEditorListener cel){
listeners.addElement(cel);
}

public void removeCellEditorListener(CellEditorListener cel){
listeners.removeElement(cel);
}

protected void fireEditingCanceled(){
setSelected(selCom.isSelected());
ChangeEvent ce = new ChangeEvent(this);

for(int i=0; i<listeners.size(); i++){
((CellEditorListener)listeners.elementAt(i)).editingCanceled(ce);
}
}
 
protected void fireEditingStopped(){
ChangeEvent ce = new ChangeEvent(this);
for(int i=0; i<listeners.size(); i++){
((CellEditorListener)listeners.elementAt(i)).editingStopped(ce);
}
}


}

[ September 30, 2004: Message edited by: Rachel Swailes ]

[Don Kiddick]

something like this might work :

 
public SelectableComponentEditor(){
  listeners = new Vector();
  addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
      fireEditingStopped();
    }
  });
}
 

D.

[Rachel Swailes]

The almighty Don returns!

Thanks for the advice, I'll give it a try and let you know how it goes.

Cheers,
Rachel

[Rachel Swailes]

Works like a charm!
Don Rules!

Thanks again,
Rachel

[Don Kiddick]