/*
  Copyright (c) 1996, 1997, 1998, 1999 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. */

package gnu.classpath.tools.rmi.rmic;

import java.io.FilterWriter;
import java.io.Writer;
import java.io.IOException;

public class TabbedWriter
	extends FilterWriter {

private static final String defaultTabstring = "    ";
private char[] tabstring; 
private int tabs;

public TabbedWriter(Writer o) {
	this(o, defaultTabstring);
}

public TabbedWriter(Writer o, String str) {
	super(o);
	tabs = 0;
	tabstring = str.toCharArray();
}

public void write(int c) throws IOException {
	out.write(c);
	if (c == '\n') {
		for (int i = 0; i < tabs; i++) {
			out.write(tabstring, 0, tabstring.length);
		}
	}
}

public void write(char cbuf[], int off, int len) throws IOException {
	for (int i = 0; i < len; i++) {
		write((int)cbuf[i+off]);
	}
}

public void write(String str, int off, int len) throws IOException {
	write(str.toCharArray(), off, len);
}

public void unindent() throws IOException {
	unindent(1);
}

public void unindent(int nr) throws IOException {
	indent(-nr);
}

public void indent() throws IOException {
	indent(1);
}

public void indent(int nr) throws IOException {
	tabs += nr;
	if (tabs < 0) {
		tabs = 0;
	}
	write((int)'\n');
}

}