Method RemoveGadget

ui/UIWindow.cpp:247–283

removes a UIObject from the draw list.

// removes a UIObject from the draw list.
void UIWindow::RemoveGadget(UIGadget *gadget) {
  if (!gadget)
    return;

  ASSERT(IsCreated());
  ASSERT(gadget->IsCreated());
  ASSERT(gadget->m_Wnd == this);

  gadget->OnDetachFromWindow();

  //	remove object from list.
  if (gadget->m_Prev)
    gadget->m_Prev->m_Next = gadget->m_Next;
  if (gadget->m_Next)
    gadget->m_Next->m_Prev = gadget->m_Prev;

  if (gadget == m_GadgetTail)
    m_GadgetTail = gadget->m_Prev;

  if (gadget == m_GadgetHead)
    m_GadgetHead = gadget->m_Next;

  if (gadget == m_GadgetCur) {
    m_GadgetCur->LostFocus();
    m_GadgetCur = NULL;
    m_ResetCurGadget = true;
    m_CurGadgetInGroup = false;
  }

  if (gadget == m_LockedGadget)
    m_LockedGadget = NULL;

  //	break link.
  gadget->m_Prev = NULL;
  gadget->m_Next = NULL;
  gadget->m_Wnd = NULL;
}

// forces a particular gadget into focus, always until unlocked.
void UIWindow::LockFocusOnGadget(UIGadget *gadget) { m_LockedGadget = gadget; }