I need to have a JToggleButton (that has custom background) that contains a JPanel with several JLabels within itself. That part works.
This button is placed afterwards in a JTable cell and is meant to be pressed by users. The problem is that i can only press the button on the second click. Apperenty on the first click the focus first jumps to the panel with JLabels and only afterwards to the actual button.
I tried several things to try solving this issue, but the same issue persists. A) placing the JPanel with labels directly onto the JToggleButton#add(). B) using JLayeredPane to place Button and JPanel onto different Layers where JToggleButton takes constraint Integer(-) so that the JPanel with JLabels stays visible on top
Do you have any tips? Thanks
Below is a sample code that illustrates the problem. Clicking on the button only works second time.
public class ClickableCustomButtonInTable extends JToggleButton {
public ClickableCustomButtonInTable() {
Dimension d = new Dimension(100, 100);
JLabel lFirst = new JLabel("1st label");
lFirst.setPreferredSize(d);
JLabel lSecond = new JLabel("2nd label");
lSecond.setPreferredSize(d);
JPanel panel = new JPanel();
panel.setOpaque(true);
panel.setLayout(new BorderLayout());
panel.add(lFirst, BorderLayout.NORTH);
panel.add(lSecond, BorderLayout.SOUTH);
add(panel);
addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println("Button clicked");
}
});
}
private static class CustomButtonRenderer implements TableCellRenderer {
private final ClickableCustomButtonInTable button = new ClickableCustomButtonInTable();
@Override
public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus, int row,
int column) {
return button;
}
}
private static class CustomButtonEditor extends AbstractCellEditor
implements TableCellEditor {
private final ClickableCustomButtonInTable button = new ClickableCustomButtonInTable();
@Override
public Object getCellEditorValue() {
return button.getText();
}
@Override
public Component getTableCellEditorComponent(JTable table,
Object value, boolean isSelected, int row, int column) {
return button;
}
}
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setSize(new Dimension(200, 200));
Container content = frame.getContentPane();
TableModel model = new AbstractTableModel() {
@Override
public Object getValueAt(int rowIndex, int columnIndex) {
return null;
}
@Override
public int getRowCount() {
return 1;
}
@Override
public int getColumnCount() {
return 1;
}
@Override
public boolean isCellEditable(int rowIndex, int columnIndex) {
return true;
}
@Override
public Class<?> getColumnClass(int columnIndex) {
return ClickableCustomButtonInTable.class;
}
};
JTable table = new JTable(model);
// table.setBounds(new Rectangle(0, 0, content.getWidth(), content
// .getHeight()));
table.setRowHeight(frame.getHeight());
table.setDefaultRenderer(ClickableCustomButtonInTable.class,
new CustomButtonRenderer());
table.setDefaultEditor(ClickableCustomButtonInTable.class,
new CustomButtonEditor());
content.add(table);
content.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}