Method DoUI

Descent3/newui_core.cpp:878–943

processes a menu

// processes a menu
int newuiMenu::DoUI() {
  int res, i;

  if (m_newoptionid != -1) {
    m_cursheetidx = -1;
    for (i = 0; i < m_nsheets; i++) {
      if (m_sheetbtn[i].GetID() == (int)m_newoptionid) {
        if (m_cursheet) {
          m_cursheet->Unrealize();
          m_cursheet = NULL;
        }

        if (m_hassheet[i]) {
          if (m_activate_sheet_cb) {
            (*m_activate_sheet_cb)(this, m_sheetbtn[i].GetID(), m_newoptionid, m_activate_sheet_cb_data);
          }

          m_cursheet = &m_sheets[i];
          m_cursheet->Realize();
        }

        m_cursheetidx = i;

        SetFocusOnGadget(&m_sheetbtn[i]);

        if (m_option_focus_cb) {
          (*m_option_focus_cb)(this, m_sheetbtn[i].GetID(), m_option_focus_cb_data);
        }

        break;
      }
    }
    if (i == m_nsheets) { // error!
      Int3();
      if (m_cursheet) {
        m_cursheet->Unrealize();
        m_cursheet = NULL;
      }
    }
    m_newoptionid = -1;
  }

  // refreshes gadgets on current sheet.
  if (m_cursheet) {
    m_cursheet->UpdateChanges();
  }

  // do ui and check if a new option was selected
  res = ::DoUI();

  for (i = 0; i < m_nsheets; i++) {
    if (i != m_cursheetidx) {
      if (res == m_sheetbtn[i].GetID() && m_hassheet[i]) {
        m_newoptionid = (int16_t)res;
        break;
      }
    }
  }