Cookie Wong

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since Apr 22, 2011

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Recent posts by Cookie Wong

Cannot click the JButton in Jtable

Hi all,

I cannot click the connect button in JTable. Anyone can tell me why? Many thanks.

import java.awt.*;
import java.awt.event.*;
import java.util.EventObject;
import javax.swing.*;
import javax.swing.table.*;
public class TableButton implements ActionListener {
public JFrame GUIMainFrame = new JFrame("");
JTable table;
public void actionPerformed(ActionEvent e) {
JButton editorButton = (JButton)e.getSource();
String ac = editorButton.getActionCommand();
System.out.println("ac = " + ac);
}
private JScrollPane getContent() {
table = new JTable(getModel());
table.setCellSelectionEnabled(true);
int height = (new JButton(" ")).getPreferredSize().height;
table.setRowHeight(height);
TableColumnModel colModel = table.getColumnModel();
colModel.getColumn(0).setCellRenderer(new ButtonRenderer());
colModel.getColumn(0).setCellEditor(new ButtonEditor(this));
return new JScrollPane(table);
}
private AbstractTableModel getModel() {
return new AbstractTableModel() {
private String[] columnNames = {"Action","I/O","Device"};
private Object[][] data = {
{"Connect", "Input", "1"},
{"Connect", "Input", "2"}};
public int getColumnCount() {
return columnNames.length;
}
public int getRowCount() {
return data.length;
}
public boolean isCellEditable(int row, int col) {
if (col < 2) {
return false;
} else {
return true;
}
}
public void setValueAt(Object value, int row, int col) {
data[row][col] = value;
fireTableCellUpdated(row, col);
}
public String getColumnName(int col) {
return columnNames[col];
}
public Object getValueAt(int row, int col) {
return data[row][col];
}
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
}
};
}
private JPanel getLastPanel() {
JToggleButton toggle = new JToggleButton("Disable Buttons");
toggle.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JToggleButton tb = (JToggleButton)e.getSource();
TableColumn col= table.getColumnModel().getColumn(0);
ButtonRenderer renderer = (ButtonRenderer)col.getCellRenderer();
ButtonEditor editor = (ButtonEditor)col.getCellEditor();
boolean enable;
if(tb.isSelected()) {
enable = false;
tb.setText("Enable Buttons");
} else {
enable = true;
tb.setText("Disable Buttons");
}
renderer.setEnabled(enable);
editor.setEnabled(enable);
table.repaint();
}
});
JPanel panel = new JPanel();
panel.add(toggle);
return panel;
}
public static void main(String[] args) {
TableButton GUI = new TableButton();
JFrame GUIMainFrame = new JFrame();
GUIMainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
GUIMainFrame.getContentPane().add(GUI.getContent());
GUIMainFrame.getContentPane().add(GUI.getLastPanel(), "Last");
GUIMainFrame.setSize(600, 550);
GUIMainFrame.setLocation(300,100);
GUIMainFrame.setVisible(true);
}
class ButtonRenderer implements TableCellRenderer {
JButton button;
boolean enabled = true;
public ButtonRenderer() {
button = new JButton();
}
public Component getTableCellRendererComponent(JTable table,
Object value,
boolean isSelected,
boolean hasFocus,
int row, int column) {
String text = (String)value;
button.setText(text);
button.setEnabled(enabled);
return button;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
}
class ButtonEditor extends AbstractCellEditor implements TableCellEditor,
ActionListener {
JButton button;
boolean enabled = true;
int clickCountToStart = 1;
public ButtonEditor(ActionListener al) {
button = new JButton();
button.addActionListener(this);
button.addActionListener(al);
}
public Component getTableCellEditorComponent(JTable table,
Object value,
boolean isSelected,
int row, int column) {
String text = (String)value;
button.setText(text);
button.setActionCommand(text);
button.setEnabled(enabled);
return button;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
public Object getCellEditorValue() {
return button.getText();
}
public boolean isCellEditable(EventObject anEvent) {
if (anEvent instanceof MouseEvent) {
return ((MouseEvent)anEvent).getClickCount() >= clickCountToStart;
}
return true;
}
public void actionPerformed(ActionEvent e) {
super.stopCellEditing();
}
}
}

11 years ago

Swing / AWT / SWT