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1 package com.sshtools.ui.swing;
2
3 import java.awt.Component  ;
4 import java.awt.Graphics ;
5 import java.awt.Rectangle ;
6 import java.awt.event.MouseEvent ;
7 import java.awt.event.MouseListener ;
8 import java.util.Enumeration ;
9 import java.util.Vector ;
10
11 import javax.swing.Action ;
12 import javax.swing.Icon ;
13 import javax.swing.JPopupMenu ;
14 import javax.swing.JTabbedPane ;
15
16
22 public class ClosableTabbedPane extends JTabbedPane implements MouseListener {
23 private Vector actions;
24 private JPopupMenu popup;
25
26 public ClosableTabbedPane() {
27 this(TOP);
28 }
29
30 public ClosableTabbedPane(int tabPlacement) {
31 super(tabPlacement);
32 init();
33 }
34
35 public void setIconAt(int index, Icon icon) {
36 super.setIconAt(index, new CloseTabIcon(icon));
37 }
38
39 private void init() {
40 actions = new Vector ();
41 addMouseListener(this);
42 }
43
44 public void removeAllActions() {
45 actions.removeAllElements();
46 }
47
48 public void addAction(Action action) {
49 if (!actions.contains(action)) {
50 actions.add(action);
51 }
52 }
53
54 public void removeAction(Action action) {
55 actions.remove(action);
56 }
57
58 public void addTab(String title, Component component) {
59 this.addTab(title, component, null);
60 }
61
62 public void addTab(String title, Component component, Icon extraIcon) {
63 super.addTab(title, extraIcon == null ? null : new CloseTabIcon(extraIcon), component);
64 }
65
66 public void addTab(String title, Icon extraIcon, Component component, String toolTip) {
67 super.addTab(title, extraIcon == null ? null : new CloseTabIcon(extraIcon), component, toolTip);
68 }
69
70 public void insertTab(String title, Component component, int idx) {
71 this.insertTab(title, component, null, idx);
72 }
73
74 public void insertTab(String title, Component component, Icon extraIcon, int idx) {
75 super.insertTab(title, extraIcon == null ? null : new CloseTabIcon(extraIcon), component, null, idx);
76 }
77
78 public void mouseClicked(MouseEvent e) {
79 int tabNumber = getUI().tabForCoordinate(this, e.getX(), e.getY());
80 if (tabNumber < 0) {
81 return;
82 }
83 CloseTabIcon cti = ((CloseTabIcon) getIconAt(tabNumber));
84 if (cti != null) {
85 Rectangle rect = cti.getBounds();
86 if (rect.contains(e.getPoint())) {
87 Component c = (Component ) getSelectedComponent();
88 if (c != null) {
89 if (popup == null) {
90 popup = new JPopupMenu (""); }
92 popup.setLabel(getTitleAt(getSelectedIndex()));
93 popup.invalidate();
94 popup.removeAll();
95 Action action;
96 for (Enumeration en = actions.elements(); en.hasMoreElements();) {
97 action = (Action ) en.nextElement();
98 if (action != null)
99 popup.add(action);
100 }
101 popup.validate();
102 Rectangle r = getUI().getTabBounds(this, tabNumber);
103 popup.show(ClosableTabbedPane.this, r.x, r.y + r.height);
104 }
105 }
106 }
107 }
108
109 public void mouseEntered(MouseEvent e) {
110 }
111
112 public void mouseExited(MouseEvent e) {
113 }
114
115 public void mousePressed(MouseEvent e) {
116 }
117
118 public void mouseReleased(MouseEvent e) {
119 }
120
121 class CloseTabIcon implements Icon {
122 private int x_pos;
123
124 private int y_pos;
125
126 private int width;
127
128 private int height;
129
130 private Icon fileIcon;
131
132 public CloseTabIcon(Icon fileIcon) {
133 this.fileIcon = fileIcon;
134 width = fileIcon == null ? 16 : fileIcon.getIconWidth();
135 height = fileIcon == null ? 16 : fileIcon.getIconHeight();
136 }
137
138 public void paintIcon(Component c, Graphics g, int x, int y) {
139 this.x_pos = x;
140 this.y_pos = y;
141 if (fileIcon != null) {
142 fileIcon.paintIcon(c, g, x, y);
143 }
144 }
145
146 public int getIconWidth() {
147 return width;
148 }
149
150 public int getIconHeight() {
151 return height;
152 }
153
154 public Rectangle getBounds() {
155 return new Rectangle (x_pos, y_pos, width, height);
156 }
157 }
158 } |
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