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| public class JTableLink {
public static void main(String[] args) throws MalformedURLException {
String[] col = {"URL"};
Object[][] data = {
{ new URL("https://www.developpez.net/")},
{new URL("https://www.developpez.net/forums/f6/java/")},
{new URL("https://java.developpez.com/faq/")}
};
TableModel model = new DefaultTableModel(data, col) {
public boolean isCellEditable(int row, int column) {return false;}
@Override
public Class<?> getColumnClass(int columnIndex) {
return URL.class;
}
};
JTable table = new JTable(model);
table.setRowHeight(24);
table.setCellSelectionEnabled(false);
new LinkCellRenderer(table);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel(new BorderLayout());
panel.add(table.getTableHeader(),BorderLayout.NORTH);
panel.add(new JScrollPane(table));
frame.add(panel);
frame.setSize(300, 300);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static class LinkCellRenderer extends DefaultTableCellRenderer implements MouseMotionListener, MouseListener {
private JTable table;
private Point hoverCell;
private Color defaultForeground;
public LinkCellRenderer(JTable table) {
this.table=table;
this.table.addMouseListener(this);
this.table.addMouseMotionListener(this);
table.setDefaultRenderer(URL.class, this);
}
@Override
public void setForeground(Color c) {
defaultForeground=c;
super.setForeground(c);
}
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
int row, int column) {
if ( isHover(row,column) ) {
super.setForeground(Color.BLUE);
}
else if ( hasFocus ) { // par exemple, pour simuler que le focus highlight aussi le lien
super.setForeground(Color.BLUE);
}
else {
super.setForeground(defaultForeground);
}
return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
}
private boolean isHover(int row, int column) {
return hoverCell!=null && hoverCell.x==row && hoverCell.y==column;
}
@Override
public void mouseDragged(MouseEvent e) {
}
@Override
public void mouseMoved(MouseEvent e) {
Point p = e.getPoint();
int hitColumnIndex = table.columnAtPoint(p);
int hitRowIndex = table.rowAtPoint(p);
if ( hoverCell==null || hoverCell.x!=hitRowIndex || hoverCell.y!=hitColumnIndex ) {
Point old = hoverCell;
hoverCell = new Point(hitRowIndex,hitColumnIndex);
if (old!=null && old.x!=-1 && old.y!=-1 ) {
table.tableChanged(new TableModelEvent(table.getModel(), old.x, old.x, old.y));
}
table.tableChanged(new TableModelEvent(table.getModel(), hitRowIndex, hitRowIndex, hitColumnIndex));
}
}
@Override
public void mouseClicked(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent e) {
Point old = hoverCell;
hoverCell = new Point(-1,-1);
if (old!=null && old.x!=-1 && old.y!=-1 ) {
table.tableChanged(new TableModelEvent(table.getModel(), old.x, old.x, old.y));
}
}
}
} |
