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- /*
- * $Id: LengthBase.java,v 1.9 2003/03/05 20:38:23 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.FObj;
- import org.apache.fop.fo.PropertyList;
-
- public class LengthBase implements PercentBase {
- // Standard kinds of percent-based length
- public static final int CUSTOM_BASE = 0;
- public static final int FONTSIZE = 1;
- public static final int INH_FONTSIZE = 2;
- public static final int CONTAINING_BOX = 3;
- public static final int CONTAINING_REFAREA = 4;
-
- /**
- * FO parent of the FO for which this property is to be calculated.
- */
- protected /* final */ FObj parentFO;
-
- /**
- * PropertyList for the FO where this property is calculated.
- */
- private /* final */ PropertyList propertyList;
-
- /**
- * One of the defined types of LengthBase
- */
- private /* final */ int iBaseType;
-
- public LengthBase(FObj parentFO, PropertyList plist, int iBaseType) {
- this.parentFO = parentFO;
- this.propertyList = plist;
- this.iBaseType = iBaseType;
- }
-
- /**
- * Accessor for parentFO object from subclasses which define
- * custom kinds of LengthBase calculations.
- */
- protected FObj getParentFO() {
- return parentFO;
- }
-
- /**
- * Accessor for propertyList object from subclasses which define
- * custom kinds of LengthBase calculations.
- */
- protected PropertyList getPropertyList() {
- return propertyList;
- }
-
- public int getDimension() {
- return 1;
- }
-
- public double getBaseValue() {
- return 1.0;
- }
-
- public int getBaseLength() {
- switch (iBaseType) {
- case FONTSIZE:
- return propertyList.get("font-size").getLength().getValue();
- case INH_FONTSIZE:
- return propertyList.getInherited("font-size").getLength().getValue();
- //case CONTAINING_BOX:
- // depends on property?? inline-progression vs block-progression
- //return parentFO.getContentWidth();
- case CONTAINING_REFAREA: // example: start-indent, end-indent
- {
- //FONode fo;
- //for (fo = parentFO; fo != null && !fo.generatesReferenceAreas();
- // fo = fo.getParent());
- //return (((fo != null) && (fo instanceof FObj)) ? ((FObj)fo).getContentWidth() : 0);
- return 0;
- }
- case CUSTOM_BASE:
- //log.debug("!!! LengthBase.getBaseLength() called on CUSTOM_BASE type !!!");
- return 0;
- default:
- //log.error("Unknown base type for LengthBase.");
- return 0;
- }
- }
-
- }
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