Re: Comment trapper un evenement MouseEvent issu de javax.swing.plaf.basic.BasicTableUI$Handler
On Sat, 20 Oct 2007 12:51:47 -0700, philippe.bodard@videotron.ca
Here is a translation based on my high school French and Babelfish..
Please take it with a large grain of salt:
Bonjour,
Dans un cas particulier , apres un clic dans une cellule g9r9e par
JTable , j'ai une exception issu du
handler de la table .
J'aimerai pourvoir etre capable de trapper cet evenement avant qu'il
soit pris en compte par le handler de la table
Good day.
In one particular case, after I click in a cell managed by JTable, I
am getting an exception originating in the JTable handler. I would
like to be able to intercept the event before it reaches the JTable
handler.
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at javax.swing.plaf.basic.BasicTableUI$Handler.mousePressed(Unknown
Source)
at java.awt.AWTEventMulticaster.mousePressed(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown
Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown
Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
ci joint le source de la classe JTableModule qui gere la table
J'esperai trapper l'9v8nement via un MouseHandler que je rajoute 0 ma
classe JTableModule .
Je le traite mais cependant malgr9 le dispose() , il est quand meme
pris en compte par le BasicTableUI$Handler
D'ou ma probl9matique .
Trapper cet 9v8nement pour identifier pourquoi la source est invalide
avant qu,il soit pris en compte par BasicTableUI$Handler
Merci
Here is the source for the JTableModule class which control the table.
I hope it will intercept the event via a MouseHandler that I add
with my JTableModule class. I treat? it but however in spite of the
dispose(), it behaves the same way by BasicTableUI$Handler. It is
important to intercept this event to identify why the source is
invalid, before it is processed by BasicTableUI$Handler
Thanks
package terri.gui.table;
/*
@(#)JTableModule.java 1.17 07/10/26
*
*/
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
import javax.swing.plaf.basic.BasicTableUI;
import terri.InvokerUI;
import terri.entities.*;
import terri.gui.MessageWindow;
import terri.managers.file.*;
import terri.utilities.*;
import java.lang.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.awt.event.*;
import java.awt.*;
import java.beans.*;
public class JTableModule extends JTable {
JScrollPane scrollPane;
TableColumn tableColumn0;
final int columnWidth0 = 30;
Logger logger;
JTableModule jTableModule;
TableColumnModel tableColumnModel;
MouseListener[] mls;
class MyTableUI extends BasicTableUI {
public MouseInputListener createMouseInputListener() {
return mouseHandler;
}
}
MyTableUI myTableUI;
class MouseHandler extends MouseInputAdapter {
public void mousePressed(MouseEvent e) {
logger.log(Level.INFO,"source =" + e.getSource().toString());
if (!e.getComponent().isValid()) {
logger.log(Level.INFO,"Component Source invalid, evt
consumed");
e.consume();
}
else
super.mousePressed(e);
logger.log(Level.INFO,"Mouse pressed (# of clicks: "
+ e.getClickCount() + ")");
}
public void mouseReleased(MouseEvent e) {
logger.log(Level.INFO,"source =" + e.getSource().toString());
if (!e.getComponent().isValid()) {
logger.log(Level.INFO,"Component Source invalide, evt
consumed");
e.consume();
}
else
super.mouseReleased(e);
logger.log(Level.INFO,"Mouse released (# of clicks: "
+ e.getClickCount() + ")");
}
}
MouseHandler mouseHandler;
class ListSelectionModelTableModule extends DefaultListSelectionModel
{
public boolean isSelectedIndex(int index) {
boolean result;
result=super.isSelectedIndex(index);
if (listSelectionColumnModel.getAnchorSelectionIndex() != 0) {
result=false;
}
// logger.log(Level.INFO,"isSelected (" + index + ") result = " +
result);
return result;
}
}
ListSelectionModelTableModule listSelectionRowModelTableModule;
ListSelectionModel listSelectionColumnModel;
//Default cell editor
DefaultCellEditor cellEditor = new DefaultCellEditor(new
JTextField()) {
public void cancelCellEditing() {
logger.log(Level.INFO,"cancel editing");
super.cancelCellEditing();
}
public boolean stopCellEditing() {
logger.log(Level.INFO,"stop editing");
return super.stopCellEditing();
}
public Component getTableCellEditorComponent(JTable table, Object
value, boolean isSelected, int row, int column){
logger.log(Level.INFO,"getTableCellEditorComponent with value : " +
value + " row :" + row + " column :" + column);
return super.getTableCellEditorComponent(table, value, isSelected,
row,column);
}
};
// Cell renderer used by column 0 with specifics background and
foreground colors.
DefaultTableCellRenderer col0Renderer =
new DefaultTableCellRenderer() {
Color beige = new Color(245, 245, 220);
public void setValue(Object value) {
setBackground(beige);
setForeground(Color.black);
super.setValue(value);
}
};
public JTableModule(AbstractTableModel dataModel) {
int indexMouseListener;
//logger
logger= Logger.getLogger("terri.gui.table.JTableModule");
//set the common log file handler
logger.addHandler(InvokerUI.getCommonLogFileHandler());
//initialize the list , index of the model
logger.log(Level.INFO,"new JTableModule");
//Affect the tableModel
setModel(dataModel);
logger.log(Level.INFO,"setModel");
//Column0 specifications
specifyColumn0();
logger.log(Level.INFO,"specifyColumn0");
//specific editor
//this.setCellEditor(cellEditor);
putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
logger.log(Level.INFO,"putClientProperty");
//list selection model for excel selection row behavior
jTableModule=this;
tableColumnModel=this.getColumnModel();
listSelectionColumnModel=tableColumnModel.getSelectionModel();
listSelectionRowModelTableModule= new
ListSelectionModelTableModule();
this.setSelectionModel(listSelectionRowModelTableModule);
//selection behavior
this.setRowSelectionAllowed(true);
this.setCellSelectionEnabled(true);
this.setColumnSelectionAllowed(false);
//mouse Handler for TableUI
//mouseHandler=new MouseHandler();
//this.setUI(myTableUI);
//trap mouse events for debugging
/*
mouseHandler=new MouseHandler();
mls = (MouseListener[])
(this.getListeners(MouseListener.class));
for (indexMouseListener=0;indexMouseListener<
mls.length;indexMouseListener++)
this.removeMouseListener(mls[indexMouseListener]);
this.addMouseListener(mouseHandler);
*/
// Affect a scrollPane
scrollPane = new JScrollPane(this);
logger.log(Level.INFO,"fin new JTableModule");
};
public JScrollPane getScrollPane() { return scrollPane; }
//render specifications for column 0
private void specifyColumn0() {
// max size and not resizable with gray color
tableColumn0= this.getColumn(" ");
tableColumn0.setMaxWidth(columnWidth0);
tableColumn0.setResizable(false);
tableColumn0.setCellRenderer(col0Renderer);
}
//special views behaviours to add
public void tableChanged(TableModelEvent e ) {
super.tableChanged(e);
}
}
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