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POHow to make a JButton in a JTable cell click-able?
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  1. POHow to make a JButton in a JTable cell click-able?
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    copied!<p>I have a JTable with a custom cell renderer. The cell is a JPanel that contains a JTextField and a JButton. The JTextField contains an integer, and when the user clicks on the JButton the integer should be increased.</p> <p>The problem is that the JButton can't be clicked when I have it in a JTable cell. How can I make it click-able?</p> <p><img src="https://i.stack.imgur.com/hnvdz.png" alt="enter image description here"></p> <p>Here is my test code:</p> <pre><code>public class ActiveTable extends JFrame { public ActiveTable() { RecordModel model = new RecordModel(); model.addRecord(new Record()); JTable table = new JTable(model); EditorAndRenderer editorAndRenderer = new EditorAndRenderer(); table.setDefaultRenderer(Object.class, editorAndRenderer); table.setDefaultEditor(Object.class, editorAndRenderer); table.setRowHeight(38); add(new JScrollPane(table)); setPreferredSize(new Dimension(600, 400)); pack(); setDefaultCloseOperation(EXIT_ON_CLOSE); setTitle("Active Table"); setVisible(true); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { new ActiveTable(); } }); } class RecordModel extends AbstractTableModel { private final List&lt;Record&gt; records = new ArrayList&lt;Record&gt;(); @Override public int getColumnCount() { return 1; } @Override public int getRowCount() { return records.size(); } @Override public Object getValueAt(int rowIndex, int columnIndex) { return records.get(rowIndex); } public void addRecord(Record r) { records.add(r); fireTableRowsInserted(records.size()-1, records.size()-1); } } class Record { private int count = 1; public int getCount() { return count; } public void increase() { count = count + 1; } } class CellPanel extends JPanel { private Record record; private final JTextField field = new JTextField(8); private final Action increaseAction = new AbstractAction("+") { public void actionPerformed(ActionEvent e) { record.increase(); field.setText(record.getCount()+""); JTable table = (JTable) SwingUtilities.getAncestorOfClass(JTable.class, (Component) e.getSource()); table.getCellEditor().stopCellEditing(); } }; private final JButton button = new JButton(increaseAction); public CellPanel() { add(field); add(button); } public void setRecord(Record r) { record = r; field.setText(record.getCount()+""); } public Record getRecord() { return record; } } class EditorAndRenderer extends AbstractCellEditor implements TableCellEditor, TableCellRenderer { private final CellPanel renderer = new CellPanel(); private final CellPanel editor = new CellPanel(); @Override public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { renderer.setRecord((Record) value); return renderer; } @Override public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) { editor.setRecord((Record) value); return editor; } @Override public Object getCellEditorValue() { return editor.getRecord(); } @Override public boolean isCellEditable(EventObject ev) { return true; } @Override public boolean shouldSelectCell(EventObject ev) { return false; } } } </code></pre>
 

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