package bmsi.fsp;

import java.awt.*;
import java.awt.peer.MenuBarPeer;
import java.io.IOException;
import java.util.Vector;

class FSMenuBar extends PWin implements MenuBarPeer {
  private MenuBar target;
  private Vector menu = new Vector();
  private Menu helpMenu;
  private Menu sysMenu;

  public void dispose() {
    setVisible(false);
  }

  public void postKey(int k) { }

  FSMenuBar(MenuBar m,FSToolkit toolkit) {
    super(toolkit.wm);
    target = m;
    setBounds(0,0,getScreenCols(),1);
     
  /* Although JDK 1.1 will add the MenuItems to a MenuPeer, it will
    not add Menus to a MenuBarPeer, so we have to do it ourselves.   Wierd. */
    // java.awt in JDK 1.0 will addNotify a parent menu before it's submenus!
    // We have to addNotify() ourselves for the child Menus in this case.
    Menu menu = m.getHelpMenu();
    if (menu != null) {
      //if (menu.getPeer() == null)
      //  menu.addNotify();
      if (menu.getPeer() != null)
	addHelpMenu(menu);
    }
    int n = m.getMenuCount();
    for (int i = 0; i < n; ++i) {
      menu = m.getMenu(i);
      //if (menu.getPeer() == null)
      //  menu.addNotify();
      if (menu.getPeer() != null)
	addMenu(menu);
    }
  }


  private synchronized String[] getNames() {
    int n = menu.size();
    String[] s = new String[n + 2];
    s[0] = "#";
    for (int i = 0; i < n; ++i)
      s[i + 1] = ((Menu)menu.elementAt(i)).getName();
    if (helpMenu != null)
      s[n + 1] = helpMenu.getName();
    return s;
  }

  protected void paint(int x,int y,int w,int h) throws IOException {
    String[] s = getNames();
    // FIXME: check whether more than one line needed
    int end = loc.width;
    char[] c = new char[end];
    int pos = 0;
    int len = 0;
    for (int i = 0; i < s.length - 1; ++i) {
      String name = s[i];
      len = name.length();
      name.getChars(0,len,c,pos);
      pos += len;
      c[pos++] = ' ';
    }
    String name = s[s.length - 1];
    if (name != null) {
      len = name.length();
      end -= len;
      name.getChars(0,len,c,end);
    }
    else
      len = 0;
    setAttr(TI.A_DIM+TI.A_REVERSE);
    write(0,0,c,0,pos);
    fill(0,pos,end - pos,1,' ');
    if (len > 0)
      write(end,0,c,end,len);
  }

  public void addHelpMenu(Menu m) {
    helpMenu = m;
  }

  public void addMenu(Menu m) {
    menu.addElement(m);
  }

  public void delMenu(int pos) {
    menu.removeElementAt(pos);
  }
}