001 /* 002 * Copyright 2007 - 2007 JEuclid, http://jeuclid.sf.net 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017 /* $Id: AbstractSubSuper.java,v bc1d5fde7b73 2009/06/01 14:40:54 maxberger $ */ 018 019 package net.sourceforge.jeuclid.elements.presentation.script; 020 021 import net.sourceforge.jeuclid.LayoutContext; 022 import net.sourceforge.jeuclid.elements.JEuclidElement; 023 import net.sourceforge.jeuclid.layout.LayoutInfo; 024 import net.sourceforge.jeuclid.layout.LayoutStage; 025 import net.sourceforge.jeuclid.layout.LayoutView; 026 027 import org.apache.batik.dom.AbstractDocument; 028 import org.w3c.dom.mathml.MathMLScriptElement; 029 030 /** 031 * Generic support for all elements that have a subscript or a superscript 032 * attribute. 033 * <p> 034 * Supported elements: msub, msup, msubsup. 035 * 036 * @version $Revision: bc1d5fde7b73 $ 037 */ 038 public abstract class AbstractSubSuper extends AbstractScriptElement implements 039 MathMLScriptElement { 040 041 /** 042 * Default constructor. Sets MathML Namespace. 043 * 044 * @param qname 045 * Qualified name. 046 * @param odoc 047 * Owner Document. 048 */ 049 public AbstractSubSuper(final String qname, final AbstractDocument odoc) { 050 super(qname, odoc); 051 } 052 053 /** {@inheritDoc} */ 054 public abstract JEuclidElement getBase(); 055 056 /** {@inheritDoc} */ 057 public abstract JEuclidElement getSuperscript(); 058 059 /** {@inheritDoc} */ 060 public abstract JEuclidElement getSubscript(); 061 062 /** {@inheritDoc} */ 063 @Override 064 public boolean hasChildPostscripts(final JEuclidElement child, 065 final LayoutContext context) { 066 return child.isSameNode(this.getBase()); 067 } 068 069 /** {@inheritDoc} */ 070 @Override 071 protected void layoutStageInvariant(final LayoutView view, 072 final LayoutInfo info, final LayoutStage stage, 073 final LayoutContext context) { 074 ScriptSupport.layout(view, info, stage, this 075 .applyLocalAttributesToContext(context), this, this.getBase(), 076 this.getSubscript(), this.getSuperscript(), this 077 .getSubscriptshift(), this.getSuperscriptshift()); 078 } 079 }