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14 package wingset;
15
16 import org.wings.*;
17 import org.wings.plaf.MenuBarCG;
18 import org.wings.plaf.MenuCG;
19 import org.wings.plaf.MenuItemCG;
20
21 import javax.swing.*;
22 import javax.swing.tree.TreeNode  ;
23
24 import java.awt.event.ActionEvent ;
25 import java.awt.event.ActionListener ;
26
27
28
32 public class MenuExample extends WingSetPane {
33
34 private SLabel selectionLabel;
35 private SMenuBar menuBar;
36
37 private final ActionListener menuItemListener = new ActionListener () {
38 public void actionPerformed(ActionEvent e) {
39 selectionLabel.setText(((SMenuItem) e.getSource()).getText());
40 }
41 };
42
43 SMenuItem createMenuItem(TreeNode node) {
44 SMenuItem item = new SMenuItem(node.toString());
45 item.setToolTipText(node.toString());
46 item.addActionListener(menuItemListener);
47 return item;
48 }
49
50 SMenu createMenu(TreeNode root) {
51 SMenu menu = new SMenu(root.toString());
52 menu.addActionListener(menuItemListener);
53
54 for (int i = 0; i < root.getChildCount(); i++) {
55 TreeNode node = root.getChildAt(i);
56 if (node.isLeaf()) {
57 menu.add(createMenuItem(node));
58 } else {
59 menu.add(createMenu(node));
60 }
61 }
62
63 return menu;
64 }
65
66 SMenuBar createMenuBar(TreeNode root) {
67 SMenuBar menuBar = new SMenuBar();
68
69 for (int i = 0; i < root.getChildCount(); i++) {
70 TreeNode node = root.getChildAt(i);
71 if (node.isLeaf()) {
72 menuBar.add(createMenuItem(node));
73 } else {
74 menuBar.add(createMenu(node));
75 }
76 }
77
78 return menuBar;
79 }
80
81 public SComponent createExample() {
82 ComponentControls controls = new ComponentControls();
83 SForm panel = new SForm();
84 panel.setLayout(new SBoxLayout(SConstants.VERTICAL));
85 panel.setPreferredSize(new SDimension("100%", null));
86
87
88 selectionLabel = new SLabel("nothing selected");
89 menuBar = createMenuBar(HugeTreeModel.ROOT_NODE);
90 controls.addSizable(menuBar);
91 panel.add(controls);
92 panel.add(menuBar, "MenuBar");
93 panel.add(new SLabel("<html><br>Form components are overlayed or hidden (in IE). Selected Menu: "), "Intro");
94 panel.add(selectionLabel, "SelectionLabel");
95 panel.add(new SLabel("<html><hr><br>combobox :"));
96 panel.add(new SComboBox(new DefaultComboBoxModel(ListExample.createElements())), "ComboBox");
97 panel.add(new SLabel("<html><br>list:"));
98 SList list = new SList(ListExample.createListModel());
99 list.setVisibleRowCount(3);
100 panel.add(list, "List");
101 panel.add(new SLabel("<html><br>textfield(stay visible):"));
102 panel.add(new STextField("wingS is great"), "TextField");
103 panel.add(new SLabel("<html><br>textarea(stay visible):"));
104 panel.add(new STextArea("wingS is a great framework for implementing complex web applications"), "TextArea");
105
106 final SCheckBox switchEnable = new SCheckBox("disable some menuitems");
108 controls.add(switchEnable);
109
110 switchEnable.addActionListener(new ActionListener () {
111 public void actionPerformed(ActionEvent e) {
112 setMenuItemsEnabled(!switchEnable.isSelected());
113 }
114 });
115
116 return panel;
117 }
118
119 protected void setMenuItemsEnabled(boolean enabled) {
120 if (menuBar.getComponentCount() > 1) {
121 SMenuItem first = (SMenuItem)menuBar.getComponent(0);
122 SMenuItem last = (SMenuItem)menuBar.getComponent(menuBar.getComponentCount() - 1);
123 recursiveMenuItemSwitch(first, last, enabled);
124 } else if (menuBar.getComponentCount() == 1) {
125 ((SMenuItem)menuBar.getComponent(0)).setEnabled(enabled);
126 }
127 }
128
129 private void recursiveMenuItemSwitch(SMenuItem first, SMenuItem last, boolean enabled) {
130 last.setEnabled(enabled);
131 if (first instanceof SMenu) {
132 if (((SMenu)first).getChildrenCount() > 1) {
133 SMenu parent = (SMenu) first;
134 SMenuItem firstChild = (SMenuItem)parent.getChild(0);
135 SMenuItem lastChild = (SMenuItem)parent.getChild(parent.getChildrenCount() - 1);
136 recursiveMenuItemSwitch(firstChild, lastChild, enabled);
137 } else if (((SMenu)first).getChildrenCount() == 1) {
138 ((SMenuItem)((SMenu)first).getChild(0)).setEnabled(enabled);
139 }
140 }
141 }
142 }
143
144
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