/*
* Copyright (C) 2009 the original author(s).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.fusesource.jansi;
import org.fusesource.jansi.AnsiOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
/**
* An ANSI string which reports the size of rendered text correctly (ignoring any ANSI escapes).
*
* @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
* @since 1.1
*/
public class AnsiString
implements CharSequence
{
private final CharSequence encoded;
private final CharSequence plain;
public AnsiString(final CharSequence str) {
assert str != null;
this.encoded = str;
this.plain = chew(str);
}
private CharSequence chew(final CharSequence str) {
assert str != null;
ByteArrayOutputStream buff = new ByteArrayOutputStream();
AnsiOutputStream out = new AnsiOutputStream(buff);
try {
out.write(str.toString().getBytes());
out.flush();
out.close();
}
catch (IOException e) {
throw new RuntimeException(e);
}
return new String(buff.toByteArray());
}
public CharSequence getEncoded() {
return encoded;
}
public CharSequence getPlain() {
return plain;
}
// FIXME: charAt() and subSequence() will make things barf, need to call toString() first to get expected results
public char charAt(final int index) {
return getEncoded().charAt(index);
}
public CharSequence subSequence(final int start, final int end) {
return getEncoded().subSequence(start, end);
}
public int length() {
return getPlain().length();
}
@Override
public boolean equals(final Object obj) {
return getEncoded().equals(obj);
}
@Override
public int hashCode() {
return getEncoded().hashCode();
}
@Override
public String toString() {
return getEncoded().toString();
}
}