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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/* $Id$ */
package org.apache.fop.fo.properties;
import org.apache.fop.datatypes.CompoundDatatype;
import org.apache.fop.fo.FObj;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.expr.PropertyException;
/**
* Superclass for properties wrapping a LengthPair value
*/
public class LengthPairProperty extends Property implements CompoundDatatype {
private Property ipd;
private Property bpd;
/**
* Inner class for creating instances of LengthPairProperty
*/
public static class Maker extends CompoundPropertyMaker {
/**
* @param propId name of property for which this Maker should be created
*/
public Maker(int propId) {
super(propId);
}
/**
* Create a new empty instance of LengthPairProperty.
* @return the new instance.
*/
public Property makeNewProperty() {
return new LengthPairProperty();
}
/**
* {@inheritDoc}
*/
public Property convertProperty(Property p, PropertyList propertyList, FObj fo)
throws PropertyException {
if (p instanceof LengthPairProperty) {
return p;
}
return super.convertProperty(p, propertyList, fo);
}
}
/**
* Creates a new LengthPairProperty with empty values.
*/
public LengthPairProperty() {
super();
}
/**
* Creates a new LengthPairProperty.
* @param ipd inline-progression-dimension
* @param bpd block-progression-dimension
*/
public LengthPairProperty(Property ipd, Property bpd) {
this();
this.ipd = ipd;
this.bpd = bpd;
}
/**
* Creates a new LengthPairProperty which sets both bpd and ipd to the
* same value.
* @param len length for both dimensions
*/
public LengthPairProperty(Property len) {
this(len, len);
}
/**
* {@inheritDoc}
*/
public void setComponent(int cmpId, Property cmpnValue,
boolean bIsDefault) {
if (cmpId == CP_BLOCK_PROGRESSION_DIRECTION) {
bpd = cmpnValue;
} else if (cmpId == CP_INLINE_PROGRESSION_DIRECTION) {
ipd = cmpnValue;
}
}
/**
* {@inheritDoc}
*/
public Property getComponent(int cmpId) {
if (cmpId == CP_BLOCK_PROGRESSION_DIRECTION) {
return getBPD();
} else if (cmpId == CP_INLINE_PROGRESSION_DIRECTION) {
return getIPD();
} else {
return null; // SHOULDN'T HAPPEN
}
}
/**
* @return Property holding the ipd length
*/
public Property getIPD() {
return this.ipd;
}
/**
* @return Property holding the bpd length
*/
public Property getBPD() {
return this.bpd;
}
/** {@inheritDoc} */
public String toString() {
return "LengthPair["
+ "ipd:" + getIPD().getObject()
+ ", bpd:" + getBPD().getObject() + "]";
}
/**
* @return this.lengthPair
*/
public LengthPairProperty getLengthPair() {
return this;
}
/**
* @return this.lengthPair cast as an Object
*/
public Object getObject() {
return this;
}
}
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