package gui;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.util.EventObject;
import java.util.LinkedList;
import javax.swing.JCheckBox;
import javax.swing.JTable;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
import javax.swing.table.TableCellEditor;
/**
*
* @author Gasuco
*/
/**
* Constructor por defecto.
*/
public TableEditor()
{
// Se le ponen las opciones al JCheckBox
super.
setSelected(new Boolean(false));
// Nos apuntamos a cuando se seleccione algo, para avisar a la tabla
// de que hemos cambiado el dato.
{
editado(true);
}
});
// Nos apuntamos a la pérdida de foco, que quiere decir que se ha
// dejado de editar la celda, sin aceptar ninguna opción. Avisamos
// a la tabla de la cancelación de la edición.
{
editado (false);
}
});
}
/** Adds a listener to the list that's notified when the editor
* stops, or cancels editing.
*
* @param l the CellEditorListener
*
*/
// Se añade el suscriptor a la lista.
suscriptores.add (l);
}
/** Tells the editor to cancel editing and not accept any partially
* edited value.
*
*/
public void cancelCellEditing() {
// No hay que hacer nada especial.
}
/** Returns the value contained in the editor.
* @return the value contained in the editor
*
*/
public Object getCellEditorValue
() { // Se obtiene la opción del JCheckBox elegida y se devuelve un
// Booleano adecuado.
if (this.isSelected())
{
aux=true;
}
else{
aux=false;
}
return aux;
}
/** Sets an initial <code>value</code> for the editor. This will cause
* the editor to <code>stopEditing</code> and lose any partially
* edited value if the editor is editing when this method is called. <p>
*
* Returns the component that should be added to the client's
* <code>Component</code> hierarchy. Once installed in the client's
* hierarchy this component will then be able to draw and receive
* user input.
*
* @param table the <code>JTable</code> that is asking the
* editor to edit; can be <code>null</code>
* @param value the value of the cell to be edited; it is
* up to the specific editor to interpret
* and draw the value. For example, if value is
* the string "true", it could be rendered as a
* string or it could be rendered as a check
* box that is checked. <code>null</code>
* is a valid value
* @param isSelected true if the cell is to be rendered with
* highlighting
* @param row the row of the cell being edited
* @param column the column of the cell being edited
* @return the component for editing
*
*/
boolean isSelected, int row, int column) {
// Devolvemos el JCheckBox del que heredamos.
return this;
}
/** Asks the editor if it can start editing using <code>anEvent</code>.
* <code>anEvent</code> is in the invoking component coordinate system.
* The editor can not assume the Component returned by
* <code>getCellEditorComponent</code> is installed. This method
* is intended for the use of client to avoid the cost of setting up
* and installing the editor component if editing is not possible.
* If editing can be started this method returns true.
*
* @param anEvent the event the editor should use to consider
* whether to begin editing or not
* @return true if editing can be started
* @see #shouldSelectCell
*
*/
// La celda es editable ante cualquier evento.
return true;
}
/** Removes a listener from the list that's notified
*
* @param l the CellEditorListener
*
*/
// Se elimina el suscriptor.
suscriptores.remove(l);
}
/** Returns true if the editing cell should be selected, false otherwise.
* Typically, the return value is true, because is most cases the editing
* cell should be selected. However, it is useful to return false to
* keep the selection from changing for some types of edits.
* eg. A table that contains a column of check boxes, the user might
* want to be able to change those checkboxes without altering the
* selection. (See Netscape Communicator for just such an example)
* Of course, it is up to the client of the editor to use the return
* value, but it doesn't need to if it doesn't want to.
*
* @param anEvent the event the editor should use to start
* editing
* @return true if the editor would like the editing cell to be selected;
* otherwise returns false
* @see #isCellEditable
*
*/
// Indica si al editar la celda, debemos seleccionar la fila que la
// contiene.
return true;
}
/** Tells the editor to stop editing and accept any partially edited
* value as the value of the editor. The editor returns false if
* editing was not stopped; this is useful for editors that validate
* and can not accept invalid entries.
*
* @return true if editing was stopped; false otherwise
*
*/
public boolean stopCellEditing() {
// Indica si se puede detener la edición.
return true;
}
/**
* Si cambiado es true, se avisa a los suscriptores de que se ha terminado
* la edición. Si es false, se avisa de que se ha cancelado la edición.
*/
protected void editado(boolean cambiado)
{
int i;
for (i=0; i<suscriptores.size(); i++)
{
if (cambiado)
aux.editingStopped(evento);
else
aux.editingCanceled(evento);
}
}
/** Lista de suscriptores */
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