如何使JTable单元在单击时执行与双击不同的操作？

Question

I am using an editable JTable that contains a column named Subject. When the first row is empty and the user clicks on a subject cell to add new task, by default, the user has to click twice to make the cell editable. I want to make it editable on single-click and have it open another form on double-click. I have tried MouseListener but have not been able to solve it. Is there a way to solve this problem? If so, what is it?

My code:

class mouseRenderer extends DefaultTableCellRenderer {
    JLabel lblcell = new JLabel();

    public Component getTableCellRendererComponent(JTable table, Object obj, boolean isSelected, boolean hasFocus, int row,
            int column) {
        ttable.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                selrow = ttable.getSelectedRow();
                selcol = ttable.getSelectedColumn();

                if(e.getClickCount() == 1) {
                    if(selrow == 0) {
                        lblcell.setText("");
                    }
                }
            }
        });
        return lblcell;
    }
}

Answer 1

只需单击即可编辑，您可以尝试使用jtable中使用的celleditor的'setClickCountToStart（）'方法。

Answer 2

You can try to create a custom CellEditor like this one and set it with setCellEditor()

public class MyTableCellEditor extends AbstractCellEditor implements TableCellEditor {

    public boolean isCellEditable(EventObject evt) {
        if (evt instanceof MouseEvent) {
            int clickCount;

            // For single-click activation
            clickCount = 1;

            // For double-click activation
            clickCount = 2;

            // For triple-click activation
            clickCount = 3;

            return ((MouseEvent)evt).getClickCount() >= clickCount;
        }
        return true;
    }
}

Answer 3

The MouseListener is the way to go for capturing double clicks on a row. It should work fine.

As far as one-click to edit, you might want to select rows using a MouseMotionListener and let the JTable take the single-click to edit. Another option might be to use a MouseListener to detect the cell that was clicked, but that is getting a little messy.