CL_Component *CL_GUIManager_Generic::tab_previous()
{
// First try to find component by tab id:
CL_Component *tab_component = owner->find_tab_id(--current_tab_id);
if (current_tab_id == -1) // reached beginning, start from end
{
current_tab_id = find_highest_tab_id(owner);
tab_component = owner->find_tab_id(current_tab_id);
}
if (tab_component)
{
set_focus(tab_component);
return comp_focus;
}
if(comp_focus == 0)
return 0;
// No tab ids - fall back to tree walking:
CL_Component *cur = comp_focus;
while (true)
{
CL_Component *parent = cur->get_parent();
if (parent == 0) break;
// Search siblings:
std::list<CL_Component *>::const_iterator it;
for (it = parent->get_children().begin(); it != parent->get_children().end(); it++)
{
if (*it == cur)
{
// no more siblings
if (it == parent->get_children().begin()) break;
it--;
// give sibling focus
set_focus(*it);
return comp_focus;
}
}
// Was last sibling, continue search in parent (uncles)
cur = parent;
}
// walked through all components. Restart at end component:
cur = owner;
while (!cur->get_children().empty()) cur = cur->get_children().back();
set_focus(cur);
return comp_focus;
}
CL_Component *CL_GUIManager_Generic::tab_next()
{
// First try to find component by tab id:
CL_Component *tab_component = owner->find_tab_id(++current_tab_id);
if (tab_component == 0) // reached end, start from beginning
{
current_tab_id = 0;
tab_component = owner->find_tab_id(current_tab_id);
}
if (tab_component)
{
set_focus(tab_component);
return comp_focus;
}
if(comp_focus == 0)
return 0;
// No tab ids - fall back to tree walking:
if (comp_focus->get_children().empty()) // tab to sibling or uncle
{
CL_Component *cur = comp_focus;
while (true)
{
CL_Component *parent = cur->get_parent();
if (parent == 0) break;
// Search siblings:
std::list<CL_Component *>::const_iterator it;
for (it = parent->get_children().begin(); it != parent->get_children().end(); it++)
{
if (*it == cur)
{
it++;
// no more siblings
if (it == parent->get_children().end()) break;
// give sibling focus
set_focus(*it);
return comp_focus;
}
}
// Was last sibling, continue search in parent (uncles)
cur = parent;
}
// if we are top node (no siblings), and got no children:
if (cur == comp_focus) return comp_focus;
// walked through all components. Restart at first component:
set_focus(owner);
return comp_focus;
}
else // tab to children
{
// give first child focus
set_focus(comp_focus->get_children().front());
return comp_focus;
}
}
