Edit/add/delete a sequence link

diff --git a/src/jalview/jbgui/GSequenceLink.java b/src/jalview/jbgui/GSequenceLink.java
new file mode 100755 (executable)
index 0000000..8c69a95
--- /dev/null
+++ b/src/jalview/jbgui/GSequenceLink.java
@@ -0,0 +1,132 @@
+package jalview.jbgui;\r
+\r
+import java.awt.*;\r
+import javax.swing.JTextField;\r
+import javax.swing.JLabel;\r
+import javax.swing.*;\r
+import java.awt.event.ActionListener;\r
+import java.awt.event.ActionEvent;\r
+import java.awt.event.KeyAdapter;\r
+import java.awt.event.KeyEvent;\r
+\r
+public class GSequenceLink\r
+    extends Panel\r
+{\r
+  public GSequenceLink()\r
+  {\r
+    try\r
+    {\r
+      jbInit();\r
+    }\r
+    catch (Exception ex)\r
+    {\r
+      ex.printStackTrace();\r
+    }\r
+  }\r
+\r
+  private void jbInit()\r
+      throws Exception\r
+  {\r
+    this.setLayout(gridBagLayout1);\r
+    nameTB.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));\r
+    nameTB.setBounds(new Rectangle(77, 10, 310, 23));\r
+    nameTB.addKeyListener(new KeyAdapter()\r
+    {\r
+      public void keyTyped(KeyEvent e)\r
+      {\r
+        nameTB_keyTyped(e);\r
+      }\r
+    });\r
+    urlTB.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));\r
+    urlTB.setText("http://www.");\r
+    urlTB.setBounds(new Rectangle(78, 40, 309, 23));\r
+    urlTB.addKeyListener(new KeyAdapter()\r
+    {\r
+      public void keyTyped(KeyEvent e)\r
+      {\r
+        urlTB_keyTyped(e);\r
+      }\r
+    });\r
+    jLabel1.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));\r
+    jLabel1.setHorizontalAlignment(SwingConstants.TRAILING);\r
+    jLabel1.setText("Link Name");\r
+    jLabel1.setBounds(new Rectangle(4, 10, 71, 24));\r
+    jLabel2.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));\r
+    jLabel2.setHorizontalAlignment(SwingConstants.TRAILING);\r
+    jLabel2.setText("URL");\r
+    jLabel2.setBounds(new Rectangle(17, 37, 54, 27));\r
+    jLabel3.setFont(new java.awt.Font("Verdana", Font.ITALIC, 11));\r
+    jLabel3.setText("Use $SEQUENCE_ID$ to specify where sequence id is in URL");\r
+    jLabel3.setBounds(new Rectangle(21, 72, 351, 15));\r
+    jPanel1.setBorder(BorderFactory.createEtchedBorder());\r
+    jPanel1.setLayout(null);\r
+    jPanel1.add(jLabel1);\r
+    jPanel1.add(nameTB);\r
+    jPanel1.add(urlTB);\r
+    jPanel1.add(jLabel2);\r
+    jPanel1.add(jLabel3);\r
+    this.add(jPanel1, new GridBagConstraints(0, 0, 1, 1, 1.0, 1.0\r
+                                             , GridBagConstraints.CENTER,\r
+                                             GridBagConstraints.BOTH,\r
+                                             new Insets(5, 4, 6, 5), 390, 100));\r
+  }\r
+\r
+  public void setName(String name)\r
+  {\r
+    nameTB.setText(name);\r
+  }\r
+\r
+  public void setURL(String url)\r
+  {\r
+    urlTB.setText(url);\r
+  }\r
+\r
+  public String getName()\r
+  {\r
+    return nameTB.getText();\r
+  }\r
+\r
+  public String getURL()\r
+  {\r
+    return urlTB.getText();\r
+  }\r
+\r
+  public boolean checkValid()\r
+  {\r
+    if(urlTB.getText().indexOf("$SEQUENCE_ID$")==-1)\r
+    {\r
+      JOptionPane.showInternalMessageDialog(jalview.gui.Desktop.desktop,\r
+                                            "Sequence URL must contain $SEQUENCE_ID$",\r
+           "URL not valid", JOptionPane.WARNING_MESSAGE);\r
+      return false;\r
+    }\r
+    return true;\r
+  }\r
+\r
+\r
+\r
+  JTextField nameTB = new JTextField();\r
+  JTextField urlTB = new JTextField();\r
+  JLabel jLabel1 = new JLabel();\r
+  JLabel jLabel2 = new JLabel();\r
+  JLabel jLabel3 = new JLabel();\r
+  JPanel jPanel1 = new JPanel();\r
+  GridBagLayout gridBagLayout1 = new GridBagLayout();\r
+  public void nameTB_keyTyped(KeyEvent e)\r
+  {\r
+    if(e.getKeyChar()=='|')\r
+     {\r
+       e.consume();\r
+     }\r
+  }\r
+\r
+  public void urlTB_keyTyped(KeyEvent e)\r
+  {\r
+    if (e.getKeyChar() == '|' || e.getKeyChar()==' ')\r
+    {\r
+      e.consume();\r
+    }\r
+\r
+  }\r
+}\r
+\r