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- /*-- $Id$ --
-
- ============================================================================
- The Apache Software License, Version 1.1
- ============================================================================
-
- Copyright (C) 1999 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.fo.expr;
-
- import org.apache.fop.datatypes.*;
- import org.apache.fop.fo.Property;
- import org.apache.fop.fo.LengthProperty;
- import org.apache.fop.fo.FObj;
- import org.apache.fop.fo.flow.ListItem;
-
- public class LabelEndFunction extends FunctionBase {
-
- public int nbArgs() { return 0; }
-
- public Property eval(Property[] args, PropertyInfo pInfo)
- throws PropertyException {
-
- Length distance
- = pInfo.getPropertyList()
- .get("provisional-distance-between-starts").getLength();
- Length separation
- = pInfo.getPropertyList()
- .getNearestSpecified("provisional-label-separation").getLength();
-
- FObj item = pInfo.getFO();
- while(item != null && !(item instanceof ListItem)) {
- item = item.getParent();
- }
- if(item == null) {
- throw new PropertyException("label-end() called from outside an fo:list-item");
- }
- Length startIndent = item.properties.get("start-indent").getLength();
-
- LinearCombinationLength labelEnd = new LinearCombinationLength();
-
- // Should be CONTAINING_REFAREA but that doesn't work
- LengthBase base = new LengthBase(item, pInfo.getPropertyList(),
- LengthBase.CONTAINING_BOX);
- PercentLength refWidth = new PercentLength(1.0, base);
-
- labelEnd.addTerm(1.0, refWidth);
- labelEnd.addTerm(-1.0, distance);
- labelEnd.addTerm(-1.0, startIndent);
- labelEnd.addTerm(1.0, separation);
-
- return new LengthProperty(labelEnd);
- }
- }
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