This is added to my Groups class public methods declarations in Groups.h
* void set_tab_order(int nwidgets, int nfocus, Widget* o_1, ...);
*
This is added at the bottom of my Groups.cxx file.
*// rs-> tab reordering. Changes tab ordering by removing and
// reinserting child widgets under their original parents in the
// new order and sets the focus widget explicitly.
void Group::set_tab_order(int nwidgets, int nfocus, Widget* o_1, ...)
{
// both the number of widgets and the number of the widget
// to focus are indexed base 1. Null widgets will be skipped.
if(nfocus <= 0) return; // error, focus too low
if(nfocus > nwidgets) return; // error, focus too high.
if(nwidgets < 2) return; // nothing to do
// remove them all and reinsert to set
// new tab order.
Widget** stk = & o_1;
int focus_index = nfocus -1;
Group* parents[256]; // this sets the limit on how many we can do at a
time.
for(int i = 0; i < nwidgets; i++)
{
// ignore null widgets
if(stk[i])
{
Group* super = stk[i]->parent();
parents[i] = super;
super->remove(stk[i]);
}
}
for(int i = 0; i < nwidgets; i++)
{
// ignore null widgets
if(stk[i])
{
parents[i]->add(stk[i]);
if(i == focus_index)
parents[i]->set_focus(stk[i]);
}
}
}
*
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