java.awt.peer.MenuBarPeer Java Examples

The following examples show how to use java.awt.peer.MenuBarPeer. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: MenuBar.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        menus.addElement(m);
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            peer.addMenu(m);
        }
        return m;
    }
}
Example #2
Source File: MenuBar.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            menus.addElement(m);
            peer.addMenu(m);
        } else {
            menus.addElement(m);
        }
        return m;
    }
}
Example #3
Source File: MenuBar.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Removes the menu located at the specified
 * index from this menu bar.
 * @param        index   the position of the menu to be removed.
 * @see          java.awt.MenuBar#add(java.awt.Menu)
 */
public void remove(final int index) {
    synchronized (getTreeLock()) {
        Menu m = getMenu(index);
        menus.removeElementAt(index);
        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            peer.delMenu(index);
            m.removeNotify();
        }
        m.parent = null;
        if (helpMenu == m) {
            helpMenu = null;
            m.isHelpMenu = false;
        }
    }
}
Example #4
Source File: MenuBar.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(final Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        helpMenu = m;
        if (m != null) {
            if (m.parent != this) {
                add(m);
            }
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #5
Source File: MenuBar.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        menus.addElement(m);
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            peer.addMenu(m);
        }
        return m;
    }
}
Example #6
Source File: MenuBar.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Removes the menu located at the specified
 * index from this menu bar.
 * @param        index   the position of the menu to be removed.
 * @see          java.awt.MenuBar#add(java.awt.Menu)
 */
public void remove(final int index) {
    synchronized (getTreeLock()) {
        Menu m = getMenu(index);
        menus.removeElementAt(index);
        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            m.removeNotify();
            m.parent = null;
            peer.delMenu(index);
        }
        if (helpMenu == m) {
            helpMenu = null;
            m.isHelpMenu = false;
        }
    }
}
Example #7
Source File: MenuBar.java    From Java8CN with Apache License 2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(final Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        helpMenu = m;
        if (m != null) {
            if (m.parent != this) {
                add(m);
            }
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #8
Source File: MenuBar.java    From Java8CN with Apache License 2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        menus.addElement(m);
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            peer.addMenu(m);
        }
        return m;
    }
}
Example #9
Source File: MenuBar.java    From Java8CN with Apache License 2.0 6 votes vote down vote up 
/**
 * Removes the menu located at the specified
 * index from this menu bar.
 * @param        index   the position of the menu to be removed.
 * @see          java.awt.MenuBar#add(java.awt.Menu)
 */
public void remove(final int index) {
    synchronized (getTreeLock()) {
        Menu m = getMenu(index);
        menus.removeElementAt(index);
        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            m.removeNotify();
            m.parent = null;
            peer.delMenu(index);
        }
        if (helpMenu == m) {
            helpMenu = null;
            m.isHelpMenu = false;
        }
    }
}
Example #10
Source File: MenuBar.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(final Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        helpMenu = m;
        if (m != null) {
            if (m.parent != this) {
                add(m);
            }
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #11
Source File: MenuBar.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        menus.addElement(m);
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            peer.addMenu(m);
        }
        return m;
    }
}
Example #12
Source File: MenuBar.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Removes the menu located at the specified
 * index from this menu bar.
 * @param        index   the position of the menu to be removed.
 * @see          java.awt.MenuBar#add(java.awt.Menu)
 */
public void remove(final int index) {
    synchronized (getTreeLock()) {
        Menu m = getMenu(index);
        menus.removeElementAt(index);
        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            m.removeNotify();
            m.parent = null;
            peer.delMenu(index);
        }
        if (helpMenu == m) {
            helpMenu = null;
            m.isHelpMenu = false;
        }
    }
}
Example #13
Source File: MenuBar.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        if (m.parent != this) {
            add(m);
        }
        helpMenu = m;
        if (m != null) {
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #14
Source File: MenuBar.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            menus.addElement(m);
            peer.addMenu(m);
        } else {
            menus.addElement(m);
        }
        return m;
    }
}
Example #15
Source File: MenuBar.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        if (m.parent != this) {
            add(m);
        }
        helpMenu = m;
        if (m != null) {
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #16
Source File: MenuBar.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        menus.addElement(m);
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            peer.addMenu(m);
        }
        return m;
    }
}
Example #17
Source File: MenuBar.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(final Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        helpMenu = m;
        if (m != null) {
            if (m.parent != this) {
                add(m);
            }
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #18
Source File: MenuBar.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            menus.addElement(m);
            peer.addMenu(m);
        } else {
            menus.addElement(m);
        }
        return m;
    }
}
Example #19
Source File: MenuBar.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Removes the menu located at the specified
 * index from this menu bar.
 * @param        index   the position of the menu to be removed.
 * @see          java.awt.MenuBar#add(java.awt.Menu)
 */
public void remove(final int index) {
    synchronized (getTreeLock()) {
        Menu m = getMenu(index);
        menus.removeElementAt(index);
        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            peer.delMenu(index);
            m.removeNotify();
            m.parent = null;
        }
        if (helpMenu == m) {
            helpMenu = null;
            m.isHelpMenu = false;
        }
    }
}
Example #20
Source File: MenuBar.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        if (m.parent != this) {
            add(m);
        }
        helpMenu = m;
        if (m != null) {
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #21
Source File: MenuBar.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        menus.addElement(m);
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            peer.addMenu(m);
        }
        return m;
    }
}
Example #22
Source File: MenuBar.java    From jdk-1.7-annotated with Apache License 2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        if (m.parent != this) {
            add(m);
        }
        helpMenu = m;
        if (m != null) {
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #23
Source File: MenuBar.java    From jdk-1.7-annotated with Apache License 2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        menus.addElement(m);
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            peer.addMenu(m);
        }
        return m;
    }
}
Example #24
Source File: MenuBar.java    From jdk8u-dev-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        if (m.parent != this) {
            add(m);
        }
        helpMenu = m;
        if (m != null) {
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #25
Source File: MenuBar.java    From jdk8u-dev-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        menus.addElement(m);
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            peer.addMenu(m);
        }
        return m;
    }
}
Example #26
Source File: MenuBar.java    From Bytecoder with Apache License 2.0 6 votes vote down vote up 
/**
 * Removes the menu located at the specified
 * index from this menu bar.
 * @param        index   the position of the menu to be removed.
 * @see          java.awt.MenuBar#add(java.awt.Menu)
 */
public void remove(final int index) {
    synchronized (getTreeLock()) {
        Menu m = getMenu(index);
        menus.removeElementAt(index);
        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            peer.delMenu(index);
            m.removeNotify();
        }
        m.parent = null;
        if (helpMenu == m) {
            helpMenu = null;
            m.isHelpMenu = false;
        }
    }
}
Example #27
Source File: MenuBar.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(final Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        helpMenu = m;
        if (m != null) {
            if (m.parent != this) {
                add(m);
            }
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #28
Source File: MenuBar.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
/**
 * Removes the menu located at the specified
 * index from this menu bar.
 * @param        index   the position of the menu to be removed.
 * @see          java.awt.MenuBar#add(java.awt.Menu)
 */
public void remove(final int index) {
    synchronized (getTreeLock()) {
        Menu m = getMenu(index);
        menus.removeElementAt(index);
        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            peer.delMenu(index);
            m.removeNotify();
            m.parent = null;
        }
        if (helpMenu == m) {
            helpMenu = null;
            m.isHelpMenu = false;
        }
    }
}
Example #29
Source File: MenuBar.java    From dragonwell8_jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Sets the specified menu to be this menu bar's help menu.
 * If this menu bar has an existing help menu, the old help menu is
 * removed from the menu bar, and replaced with the specified menu.
 * @param m    the menu to be set as the help menu
 */
public void setHelpMenu(final Menu m) {
    synchronized (getTreeLock()) {
        if (helpMenu == m) {
            return;
        }
        if (helpMenu != null) {
            remove(helpMenu);
        }
        helpMenu = m;
        if (m != null) {
            if (m.parent != this) {
                add(m);
            }
            m.isHelpMenu = true;
            m.parent = this;
            MenuBarPeer peer = (MenuBarPeer)this.peer;
            if (peer != null) {
                if (m.peer == null) {
                    m.addNotify();
                }
                peer.addHelpMenu(m);
            }
        }
    }
}
Example #30
Source File: MenuBar.java    From dragonwell8_jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Adds the specified menu to the menu bar.
 * If the menu has been part of another menu bar,
 * removes it from that menu bar.
 *
 * @param        m   the menu to be added
 * @return       the menu added
 * @see          java.awt.MenuBar#remove(int)
 * @see          java.awt.MenuBar#remove(java.awt.MenuComponent)
 */
public Menu add(Menu m) {
    synchronized (getTreeLock()) {
        if (m.parent != null) {
            m.parent.remove(m);
        }
        m.parent = this;

        MenuBarPeer peer = (MenuBarPeer)this.peer;
        if (peer != null) {
            if (m.peer == null) {
                m.addNotify();
            }
            menus.addElement(m);
            peer.addMenu(m);
        } else {
            menus.addElement(m);
        }
        return m;
    }
}