fixed the console errors being generated by the swinginputfield

git-svn-id: http://svn.dmdirc.com/trunk@3565 00569f92-eb28-0410-84fd-f71c24880f

src/com/dmdirc/ui/swing/components/SwingInputField.java

 import java.awt.event.ActionListener;
 import java.awt.event.KeyListener;
 
+import javax.swing.JComponent;
 import javax.swing.JLabel;
 import javax.swing.JTextField;
 import javax.swing.event.DocumentEvent;
 import javax.swing.event.DocumentListener;
 import javax.swing.text.BadLocationException;
-import javax.swing.text.JTextComponent;
 import net.miginfocom.swing.MigLayout;
 
 /** Swing input field. */
-public class SwingInputField extends JTextComponent implements InputField,
+public class SwingInputField extends JComponent implements InputField,
         DocumentListener {
 
     /**
      * 
      * @param clipboard Text to replace selection with
      */
-    @Override
     public void replaceSelection(String clipboard) {
         textField.replaceSelection(clipboard);
     }
      * 
      * @param optionColour Colour for the caret
      */
-    @Override
     public void setCaretColor(Color optionColour) {
         textField.setCaretColor(optionColour);
     }

src/com/dmdirc/ui/swing/components/SwingInputHandler.java

     /** {@inheritDoc} */
     @Override
     protected void addUpHandler() {
-        ((JTextComponent) target).getActionMap().put("upArrow", new AbstractAction() {
+        final JTextComponent localTarget;
+        if (target instanceof JTextComponent) {
+            localTarget = (JTextComponent) target;
+        } else if (target instanceof SwingInputField) {
+            localTarget = ((SwingInputField) target).getTextField();
+        } else {
+            throw new RuntimeException("Unsupported component: " + target.getClass());
+        }
+        localTarget.getActionMap().put("upArrow", new AbstractAction() {
 
             /**
              * A version number for this class. It should be changed whenever the class
                 doBufferUp();
             }
         });
-        ((JTextComponent) target).getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).
+        localTarget.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).
                 put(KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0), "upArrow");
     }
 
     /** {@inheritDoc} */
     @Override
     protected void addDownHandler() {
-        ((JTextComponent) target).getActionMap().put("downArrow", new AbstractAction() {
+        final JTextComponent localTarget;
+        if (target instanceof JTextComponent) {
+            localTarget = (JTextComponent) target;
+        } else if (target instanceof SwingInputField) {
+            localTarget = ((SwingInputField) target).getTextField();
+        } else {
+            throw new RuntimeException("Unsupported component: " + target.getClass());
+        }
+        localTarget.getActionMap().put("downArrow", new AbstractAction() {
 
             /**
              * A version number for this class. It should be changed whenever the class
                 doBufferDown();
             }
         });
-        ((JTextComponent) target).getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).
+        localTarget.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).
                 put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0), "downArrow");
     }
 
     /** {@inheritDoc} */
     @Override
     protected void addTabHandler() {
-        ((JTextComponent) target).getActionMap().put("tabPressed", new AbstractAction() {
+        final JTextComponent localTarget;
+        if (target instanceof JTextComponent) {
+            localTarget = (JTextComponent) target;
+        } else if (target instanceof SwingInputField) {
+            localTarget = ((SwingInputField) target).getTextField();
+        } else {
+            throw new RuntimeException("Unsupported component: " + target.getClass());
+        }
+        localTarget.getActionMap().put("tabPressed", new AbstractAction() {
 
             /**
              * A version number for this class. It should be changed whenever the class
                 doTabCompletion();
             }
         });
-        ((JTextComponent) target).getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).
+        localTarget.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).
                 put(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0), "tabPressed");
     }
 
     /** {@inheritDoc} */
     @Override
     protected void addEnterHandler() {
-        ((JTextComponent) target).getActionMap().put("enterButton", new AbstractAction() {
+        final JTextComponent localTarget;
+        if (target instanceof JTextComponent) {
+            localTarget = (JTextComponent) target;
+        } else if (target instanceof SwingInputField) {
+            localTarget = ((SwingInputField) target).getTextField();
+        } else {
+            throw new RuntimeException("Unsupported component: " + target.getClass());
+        }
+        localTarget.getActionMap().put("enterButton", new AbstractAction() {
 
             /**
              * A version number for this class. It should be changed whenever the class
                 enterPressed(target.getText());
             }
         });
-        ((JTextComponent) target).getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).
+        localTarget.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).
                 put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "enterButton");
     }