/*
* $Id: MixedLength.java,v 1.4.2.3 2003/02/25 10:48:28 jeremias Exp $
* ============================================================================
* The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modifica-
* tion, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by the Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "FOP" and "Apache Software Foundation" must not be used to
* endorse or promote products derived from this software without prior
* written permission. For written permission, please contact
* apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache", nor may
* "Apache" appear in their name, without prior written permission of the
* Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
* DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ============================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of the Apache Software Foundation and was originally created by
* James Tauber <jtauber@jtauber.com>. For more information on the Apache
* Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.fop.datatypes;
import java.util.ArrayList;
import org.apache.fop.fo.expr.Numeric;
import org.apache.fop.fo.expr.PropertyException;
/**
* A length quantity in XSL which is specified with a mixture
* of absolute and relative and/or percent components.
* The actual value may not be computable before layout is done.
*/
public class MixedLength extends Length {
private ArrayList lengths ;
public MixedLength(ArrayList lengths) {
this.lengths = lengths;
}
protected void computeValue() {
int computedValue =0;
boolean bAllComputed = true;
for (int i = 0; i < lengths.size(); i++) {
Length l = (Length)lengths.get(i);
computedValue += l.mvalue();
if (! l.isComputed()) {
bAllComputed = false;
}
}
setComputedValue(computedValue, bAllComputed);
}
public double getTableUnits() {
double tableUnits = 0.0;
for (int i = 0; i < lengths.size(); i++) {
tableUnits += ((Length)lengths.get(i)).getTableUnits();
}
return tableUnits;
}
public void resolveTableUnit(double dTableUnit) {
for (int i = 0; i < lengths.size(); i++) {
((Length)lengths.get(i)).resolveTableUnit(dTableUnit);
}
}
public String toString() {
StringBuffer sbuf = new StringBuffer();
for (int i = 0; i < lengths.size(); i++) {
if (sbuf.length()>0) {
sbuf.append('+');
}
sbuf.append(lengths.get(i).toString());
}
return sbuf.toString();
}
public Numeric asNumeric() {
Numeric numeric = null;
for (int i = 0; i < lengths.size(); i++) {
Length l = (Length)lengths.get(i);
if (numeric == null) {
numeric = l.asNumeric();
} else {
try {
Numeric sum = numeric.add(l.asNumeric());
numeric = sum;
} catch (PropertyException pe) {
System.err.println("Can't convert MixedLength to Numeric: " +
pe);
}
}
}
return numeric;
}
}