// Is there a better way?
/// <summary>
/// Helper function for dealing with clicks on the tab labels, or whatever
/// widgets the tab label might control. Tests to see which tab the
/// indicated objects is on. This lets us identify the tabs associated
/// with click events, for example.
/// </summary>
/// <param name="o">The widget that we are seaching for</param>
/// <returns>Page number of the tab, or -1 if not found</returns>
private int GetTabOfWidget(object o, ref Notebook notebook, ref string tabName)
{
tabName = null;
Widget widg = o as Widget;
if (widg == null)
return -1;
notebook = IsControlOnLeft(o) ? notebook1 : notebook2;
for (int i = 0; i < notebook.NPages; i++)
{
// First check the tab labels
Widget testParent = notebook.GetTabLabel(notebook.GetNthPage(i));
if (testParent == widg || widg.IsAncestor(testParent))
{
tabName = notebook.GetTabLabelText(notebook.GetNthPage(i));
return i;
}
// If not found, check the tab contents
testParent = notebook.GetNthPage(i);
if (testParent == widg || widg.IsAncestor(testParent))
{
tabName = notebook.GetTabLabelText(notebook.GetNthPage(i));
return i;
}
}
return -1;
}