Menus
The code listing below shows how menu items can be created. Each StyleVisionCommand object gets a corresponding MenuItem object, with the ActionCommand set to the ID of the command. The actions generated by all menu items are handled by the same function, which can perform specific handlings (like reinterpreting the closing mechanism) or can delegate the execution to the StyleVisionControl object by calling its exec method. The menuMap object that is filled during menu creation is used later (see section UI Update Event Handling).
01
02 // Load the file menu when the button is pressed
03 btnMenu.addActionListener( new ActionListener() {
04 public void actionPerformed(ActionEvent e) {
05 try {
06 // Create the menubar that will be attached to the frame
07 MenuBar mb = new MenuBar();
08 // Load the main menu's first item - the File menu
09 StyleVisionCommand xmlSpyMenu = styleVisionControl.getMainMenu().getSubCommands().getItem( 0 );
10 // Create Java menu items from the Commands objects
11 Menu fileMenu = new Menu();
12 handlerObject.fillMenu( fileMenu, xmlSpyMenu.getSubCommands() );
13 fileMenu.setLabel( xmlSpyMenu.getLabel().replace( "&", "" ) );
14 mb.add( fileMenu );
15 frame.setMenuBar( mb );
16 frame.validate();
17 } catch (AutomationException e1) {
18 e1.printStackTrace();
19 }
20 // Disable the button when the action has been performed
21 ((AbstractButton) e.getSource()).setEnabled( false );
22 }
23 } ) ;
24 /**
25 * Populates a menu with the commands and submenus contained in a StyleVisionCommands object
26 */
27 public void fillMenu(Menu newMenu, StyleVisionCommands styleVisionMenu) throws AutomationException
28 {
29 // For each command/submenu in the xmlSpyMenu
30 for ( int i = 0 ; i < styleVisionMenu.getCount() ; ++i )
31 {
32 StyleVisionCommand styleVisionCommand = styleVisionMenu.getItem( i );
33 if ( styleVisionCommand.getIsSeparator() )
34 newMenu.addSeparator();
35 else
36 {
37 StyleVisionCommands subCommands = styleVisionCommand.getSubCommands();
38 // Is it a command (leaf), or a submenu?
39 if ( subCommands.isNull() || subCommands.getCount() == 0 )
40 {
41 // Command -> add it to the menu, set its ActionCommand to its ID and store it in the menuMap
42 MenuItem mi = new MenuItem( styleVisionCommand.getLabel().replace( "&", "" ) );
43 mi.setActionCommand( "" + styleVisionCommand.getID() );
44 mi.addActionListener( this );
45 newMenu.add( mi );
46 menuMap.put( styleVisionCommand.getID(), mi );
47 }
48 else
49 {
50 // Submenu -> create submenu and repeat recursively
51 Menu newSubMenu = new Menu();
52 fillMenu( newSubMenu, subCommands );
53 newSubMenu.setLabel( styleVisionCommand.getLabel().replace( "&", "" ) );
54 newMenu.add( newSubMenu );
55 }
56 }
57 }
58 }
59 /**
60 * Action handler for the menu items
61 * Called when the user selects a menu item; the item's action command corresponds to the command table for XMLSpy
62 */
63 public void actionPerformed( ActionEvent e )
64 {
65 try
66 {
67 int iCmd = Integer.parseInt( e.getActionCommand() );
68 // Handle explicitly the Close commands
69 switch ( iCmd )
70 {
71 case 57602: // Close
72 case 34050: // Close All
73 StyleVisionContainer.initStyleVisionDocument();
74 break;
75 default:
76 StyleVisionContainer.styleVisionControl.exec( iCmd );
77 break;
78 }
79 }
80 catch ( Exception ex )
81 {
82 ex.printStackTrace();
83 }
84
85 }