This is a continuation of the "JTable and ToolTips per Cell" thread from
January 4, 2001.
To summarize, to add tooltips to a JTable, extend the CellRenderer, eg:
jtable = new JTable();
jtable.setDefaultRenderer(Object.class, new MyTableCellRenderer() );
ToolTipManager.sharedInstance().registerComponent(jtable);
private class MyTableCellRenderer extends
javax.swing.table.DefaultTableCellRenderer {
public Component getTableCellRendererComponent( JTable table,
Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
Component c = super.getTableCellRendererComponent( table, value,
isSelected,
hasFocus, row, column);
if (value instanceof NamedObject) {
((JComponent)c).setToolTipText(((NamedObject)value).getDescription());
}
// LOOK!! should turn tip off if there is none !!
return c;
}
}
So this works fine except that the placement of the tooltip is wrong
when the JTable is on the left edge of the screen, in which case long
tooltips get their left part chopped off. For some reason the
ToolTipManager doesnt do its normal job of placing tooltips correctly
near the window edge.
Now if I add a getToolTipLocation() method to MyTableCellRenderer, it
never gets called. When I add getToolTipLocation() method to the JTree,
the tooltip blinks like crazy like its in some loop, then sometimes
finally displays the tooltip, but in the same location as before.
// add tooltips
private class MyJTable extends javax.swing.JTable {
public Point getToolTipLocation(MouseEvent e) {
return e.getPoint();
}
}
If getToolTipLocation() returns null, then I get the previous behavior
of chopping off the edge of the screen.
This is all in JDK 1.3. Anyone have any ideas on why the tooltip
location is unusual?
thanks,
John Caron
_______________________________________________
Advanced-swing mailing list
[EMAIL PROTECTED]
http://eos.dk/mailman/listinfo/advanced-swing
