AWT/Swing merge from GNU Classpath.

From-SVN: r56147

libjava/javax/swing/text/GapContent.java

@@ -0,0 +1,104 @@
+/* GapContent.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.swing.text; 
+
+// too lazy to make a real gapcontent.
+// lets just use a stringbuffer instead.
+
+import javax.swing.undo.*;
+
+
+public class GapContent implements AbstractDocument.Content
+{
+    StringBuffer buf = new StringBuffer();
+
+    public GapContent()
+    {
+	this(10);
+    }
+    
+    public GapContent(int size)
+    {
+    }
+
+    public Position createPosition(final int offset) throws BadLocationException
+    {
+	return new Position()
+	    {
+		int off = offset;
+		public int getOffset()
+		{
+		    return off;
+		}
+	    };
+    }
+
+    public int length()
+    {
+	return buf.length();
+    }
+
+    public UndoableEdit insertString(int where, String str) throws BadLocationException
+    {
+	buf.insert(where, str);
+	return null;
+    }
+
+    public UndoableEdit remove(int where, int nitems) throws BadLocationException
+    {
+	buf.delete(where, where + nitems);
+	return null;
+    }
+
+    public String getString(int where, int len) throws BadLocationException
+    {
+	return buf.toString();
+    }
+
+    public void getChars(int where, int len, Segment txt) throws BadLocationException
+    {
+	txt.array = new char[len];
+		
+	System.arraycopy(buf.toString().toCharArray(), where, 
+			 txt.array, 0,
+			 len);
+	
+	txt.count  = len;
+	txt.offset = 0;
+    }
+}