[Magicmap-commits] SF.net SVN: magicmap: [591] trunk/magicmapclient/src/net/sf/magicmap/client /utils/DocumentAdapter.java

[<Jan...@us...>]

Revision: 591
          http://svn.sourceforge.net/magicmap/?rev=591&view=rev
Author:   Jan_fride
Date:     2007-03-02 13:22:09 -0800 (Fri, 02 Mar 2007)

Log Message:
-----------
Helper class fpr Swing text documents

Added Paths:
-----------
    trunk/magicmapclient/src/net/sf/magicmap/client/utils/DocumentAdapter.java

Added: trunk/magicmapclient/src/net/sf/magicmap/client/utils/DocumentAdapter.java
===================================================================
--- trunk/magicmapclient/src/net/sf/magicmap/client/utils/DocumentAdapter.java	                        (rev 0)
+++ trunk/magicmapclient/src/net/sf/magicmap/client/utils/DocumentAdapter.java	2007-03-02 21:22:09 UTC (rev 591)
@@ -0,0 +1,65 @@
+package net.sf.magicmap.client.utils;
+
+import javax.swing.event.DocumentEvent;
+import javax.swing.event.DocumentListener;
+import javax.swing.text.BadLocationException;
+import javax.swing.text.Document;
+import javax.swing.text.JTextComponent;
+import javax.swing.text.SimpleAttributeSet;
+
+
+/**
+ *
+ * @author Jan Friderici
+ *
+ */
+public abstract class DocumentAdapter implements DocumentListener {
+
+    private final Document document;
+
+    public DocumentAdapter(Document document){
+        this.document = document;
+        document.addDocumentListener(this);
+    }
+
+    public DocumentAdapter(JTextComponent component){
+        this(component.getDocument());
+    }
+
+    public void changedUpdate(DocumentEvent e){
+        handleChange(getDocumentContents());
+    }
+
+    public void insertUpdate(DocumentEvent e){
+        handleChange(getDocumentContents());
+    }
+
+    public void removeUpdate(DocumentEvent e){
+        handleChange(getDocumentContents());
+    }
+    /**
+     * to implement
+     * @param text
+     */
+    public abstract void handleChange(String text);
+
+    public final String getDocumentContents(){
+        try {
+            return document.getText(0, document.getLength());
+        } catch (BadLocationException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    public final synchronized void setDocumentContents(String contents){
+        document.removeDocumentListener(this);
+        try {
+            document.remove(0, document.getLength());
+            document.insertString(0, contents, SimpleAttributeSet.EMPTY);
+        } catch (BadLocationException e) {
+            throw new IllegalStateException(e);
+        }finally{
+            document.addDocumentListener(this);
+        }
+    }
+}


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