/*******************************************************************************
* Copyright 2010 Simon Mieth
*
* 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.kabeja.dxf.parser.entities;
import org.kabeja.dxf.parser.DXFValue;
import org.kabeja.entities.Entity;
import org.kabeja.entities.Region;
import org.kabeja.util.Constants;
/**
* @author <a href="mailto:simon.mieth@gmx.de">Simon Mieth</a>
*
*/
public class DXFRegionHandler extends AbstractEntityHandler {
protected static final int DATA = 1;
protected static final int APPEND_DATA = 3;
protected Region region;
protected StringBuffer data = new StringBuffer();
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.AbstractEntityHandler#getDXFEntityName()
*/
public String getDXFEntityType() {
// TODO Auto-generated method stub
return Constants.ENTITY_TYPE_REGION;
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#startDXFEntity()
*/
public void startDXFEntity() {
region = new Region();
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#parseGroup(int,
* de.miethxml.kabeja.parser.DXFValue)
*/
public void parseGroup(int groupCode, DXFValue value) {
switch (groupCode) {
case DATA:
//first cleanup
checkBuffer();
data.append(value.getValue());
break;
case APPEND_DATA:
data.append(value.getValue());
break;
}
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#getDXFEntity()
*/
public Entity getDXFEntity() {
return region;
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#endDXFEntity()
*/
public void endDXFEntity() {
checkBuffer();
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#isFollowSequence()
*/
public boolean isFollowSequence() {
return false;
}
protected String decodeDATA(String s) {
char[] c = s.toCharArray();
StringBuffer buf = new StringBuffer();
for (int i = 0; i < c.length; i++) {
if (Character.isWhitespace(c[i])) {
buf.append(' ');
} else {
int code = Math.abs(((int) c[i]) - 159);
buf.append((char) code);
}
}
return buf.toString();
}
protected void checkBuffer() {
if (data.length() > 0) {
region.appendACISDATA(decodeDATA(data.toString()));
data.delete(0, data.length());
}
}
}