Click hyperlink in jtable?
How can I enable hyperlink for every record in the JTable?
What I want to do is such that a user can click on the hyperlink which will then display the information they can edit/update.
Alternatively how can I enable in place editing of th开发者_JAVA技巧e table data?
Another question is i am currently using the following way to display different screen. But this is not an elegant way i understand we should use cardlayout but how exactly to go about it?
mainPanel.setVisible(false);
createBlogEntryPanel.setVisible(true);
setComponent(createBlogEntryPanel);
To address the problem with JTable consuming the events, you can add your own MouseListener (or a MouseAdapter) to the JTable and do your manipulation inside this listener. Here is an example of what you can achieve:
public class Main extends JFrame {
public Main() {
super();
DefaultTableModel dt = new DefaultTableModel(
new String[][] { { "http://google.com" }, { "http://gmail.com" } }, new String[] { "Url" });
final JTable t = new JTable(dt);
t.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
int row = t.rowAtPoint(new Point(e.getX(), e.getY()));
int col = t.columnAtPoint(new Point(e.getX(), e.getY()));
System.out.println(row + " " + col);
String url = (String) t.getModel().getValueAt(row, col);
System.out.println(url + " was clicked");
// DO here what you want to do with your url
}
@Override
public void mouseEntered(MouseEvent e) {
int col = t.columnAtPoint(new Point(e.getX(), e.getY()));
if (col == 0) {
t.setCursor(new Cursor(Cursor.HAND_CURSOR));
}
}
@Override
public void mouseExited(MouseEvent e) {
int col = t.columnAtPoint(new Point(e.getX(), e.getY()));
if (col != 0) {
t.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
}
}
});
add(new JScrollPane(t));
t.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() {
@Override
public Component getTableCellRendererComponent(JTable table, final Object value, boolean arg2,
boolean arg3, int arg4, int arg5) {
final JLabel lab = new JLabel("<html><a href=\"" + value + "\">" + value + "</a>");
return lab;
}
});
setSize(700, 500);
setLocationRelativeTo(null);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
new Main();
}
}
(The question is way too vague to answer it concisely/completely - this answer assume the main part to be the hyperlink in JTable)
Consider using a framework that fully supports hyperlinks in collection components (table, list, tree ..) - like f.i. SwingX
For a code example in SwingX, see a recent answer
Edit
But what if only part of the cell is a hyperlink, or worse, if there are 2 different links in a cell?
As mentioned in my comment: that's not supported in SwingX (it's cell-based).
So it's back to square one with several options
The ol' style: (mis-)use a cellEditor
- have a editingComponent which is/contains a hyperlink
- have a mouseListener which starts editing on rollover the cell
- from now on the live-component takes care of mouseEvents and can trigger the appropriate actions on presses/clicks at the hyperlink/s
Extending SwingX style: enrich the rollover interface (the incubator may have examples, but that wasn't added to core SwingX for the reason of not yet being ready :-) The basic idea is to
- add "hot-spots" the rollover interface
- enhance (or replace) the rolloverProducer to produce finer-grained notifications once rollover-aware cell is detected
- translate the mousePosition to the cell (rendering component) coordinates and query the cell if or not that corresponds to a hot-spot, if (and only if) so, arm and on click trigger the action
The second can be implemented independently of SwingX, of course: a plain ol' custom mouseListener and the mapping logic should do the trick (sorry, no code handy)
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