How can I make a JTable cell do different things on single-click than on double-click?
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 ex开发者_运维知识库tends 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;
}
}
For the one-click to edit, you could try the 'setClickCountToStart()' method of the celleditor used in your jtable.
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;
}
}
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.
精彩评论