/*
* $Id: FixedLength.java,v 1.1.2.1 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 org.apache.fop.fo.expr.Numeric;
import org.apache.fop.messaging.MessageHandler;
/**
* a length quantity in XSL
*/
public class FixedLength extends Length {
/**
* Set the length given a number of relative units and the current
* font size in base units.
*/
public FixedLength(double numRelUnits, int iCurFontSize) {
setComputedValue((int)(numRelUnits * (double)iCurFontSize));
}
/**
* Set the length given a number of units and a unit name.
*/
public FixedLength(double numUnits, String units) {
convert(numUnits, units);
}
/**
* set the length as a number of base units
*/
public FixedLength(int baseUnits) {
setComputedValue(baseUnits);
}
/**
* Convert the given length to a dimensionless integer representing
* a whole number of base units (milli-points).
*/
protected void convert(double dvalue, String unit) {
int assumed_resolution = 1; // points/pixel
if (unit.equals("in"))
dvalue = dvalue * 72;
else if (unit.equals("cm"))
dvalue = dvalue * 28.3464567;
else if (unit.equals("mm"))
dvalue = dvalue * 2.83464567;
else if (unit.equals("pt"))
dvalue = dvalue;
else if (unit.equals("pc"))
dvalue = dvalue * 12;
/*
* else if (unit.equals("em"))
* dvalue = dvalue * fontsize;
*/
else if (unit.equals("px"))
dvalue = dvalue * assumed_resolution;
else {
dvalue = 0;
MessageHandler.errorln("unknown length unit '" + unit
+ "'");
}
setComputedValue((int)(dvalue * 1000));
}
public Numeric asNumeric() {
return new Numeric(this);
}
}