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31
32 package org.antlr.xjlib.appkit.menu;
33
34 import javax.swing.*;
35 import javax.swing.event.MenuEvent  ;
36 import javax.swing.event.MenuListener ;
37 import java.util.ArrayList ;
38 import java.util.Iterator ;
39 import java.util.List ;
40
41 public class XJMenu extends XJMenuItem {
42
43 protected JMenu jMenu = new JMenu();
44 protected List <XJMenuItem> items = new ArrayList <XJMenuItem>();
45 protected XJMainMenuBar mainMenuBar;
46
47 public XJMenu() {
48 jMenu.addMenuListener(new XJMenuListener());
49 }
50
51 public void setMainMenuBar(XJMainMenuBar mainMenuBar) {
52 this.mainMenuBar = mainMenuBar;
53 for(int index=0; index<items.size(); index++) {
54 Object item = items.get(index);
55 if(item instanceof XJMenu) {
56 XJMenu menu = (XJMenu)item;
57 menu.setMainMenuBar(mainMenuBar);
58 }
59 }
60 }
61
62 public void setTitle(String title) {
63 jMenu.setText(title);
64 }
65
66 public void addSeparator() {
67 items.add(new XJMenuItemSeparator());
68 jMenu.addSeparator();
69 }
70
71 public void addItem(XJMenuItem item) {
72 item.setMenu(this);
73 items.add(item);
74 jMenu.add(item.getSwingComponent());
75 }
76
77 public void addItem(XJMenu menu) {
78 menu.setMenu(this);
79 items.add(menu);
80 jMenu.add(menu.getSwingComponent());
81 }
82
83 public void insertSeparatorBefore(int menuItemTag) {
84 XJMenuItem menuItem = getItemForTag(menuItemTag);
85 if(menuItem == null)
86 return;
87
88 insertSeparatorAtIndex(items.indexOf(menuItem));
89 }
90
91 public void insertSeparatorAfter(int menuItemTag) {
92 XJMenuItem menuItem = getItemForTag(menuItemTag);
93 if(menuItem == null)
94 return;
95
96 insertSeparatorAtIndex(items.indexOf(menuItem)+1);
97 }
98
99 public void insertSeparatorAtIndex(int index) {
100 items.add(index, new XJMenuItemSeparator());
101 jMenu.insertSeparator(index);
102 }
103
104 public void insertItemBefore(XJMenuItem item, int menuItemTag) {
105 XJMenuItem menuItem = getItemForTag(menuItemTag);
106 if(menuItem == null)
107 return;
108
109 insertItemAtIndex(item, items.indexOf(menuItem));
110 }
111
112 public void insertItemAfter(XJMenuItem item, int menuItemTag) {
113 XJMenuItem menuItem = getItemForTag(menuItemTag);
114 if(menuItem == null)
115 return;
116
117 insertItemAtIndex(item, items.indexOf(menuItem)+1);
118 }
119
120 public void insertItemAtIndex(XJMenuItem item, int index) {
121 items.add(index, item);
122 jMenu.add(item.getSwingComponent(), index);
123 }
124
125 public void removeItem(int index) {
126 jMenu.remove(index);
127 }
128
129 public XJMenuItem getItemForTag(int tag) {
130 Iterator <XJMenuItem> iterator = items.iterator();
131 while(iterator.hasNext()) {
132 XJMenuItem menuItem = iterator.next();
133 if(menuItem.getTag() == tag)
134 return menuItem;
135 }
136 return null;
137 }
138
139 public XJMenuItem getItemAtIndex(int index) {
140 if(index >=0 && index < items.size())
141 return items.get(index);
142 else
143 return null;
144 }
145
146 public int getItemCount() {
147 return jMenu.getItemCount();
148 }
149
150 public Iterator <XJMenuItem> itemIterator() {
151 return items.iterator();
152 }
153
154 public void clear() {
155 items.clear();
156 jMenu.removeAll();
157 }
158
159 public JComponent getSwingComponent() {
160 return jMenu;
161 }
162
163 public class XJMenuListener implements MenuListener {
164
165 public void menuSelected(MenuEvent e) {
166 if(mainMenuBar != null)
167 mainMenuBar.menuSelected(XJMenu.this);
168 }
169
170 public void menuDeselected(MenuEvent e) {
171 }
172
173 public void menuCanceled(MenuEvent e) {
174 }
175 }
176 }
177 |
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