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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- /* $Id$ */
-
- package org.apache.fop.fo.flow;
-
- import org.xml.sax.Locator;
-
- import org.apache.fop.apps.FOPException;
- import org.apache.fop.fo.FONode;
- import org.apache.fop.fo.FObjMixed;
- import org.apache.fop.fo.PropertyList;
- import org.apache.fop.fo.ValidationException;
- import org.apache.fop.fo.properties.SpaceProperty;
-
- /**
- * Class modelling the fo:bidi-override object.
- */
- public class BidiOverride extends FObjMixed {
-
- // used for FO validation
- private boolean blockOrInlineItemFound = false;
- private boolean canHaveBlockLevelChildren = true;
- // The value of properties relevant for fo:bidi-override.
- // private ToBeImplementedProperty prDirection;
- // private ToBeImplementedProperty prLetterSpacing;
- private SpaceProperty lineHeight;
- // private ToBeImplementedProperty prScoreSpaces;
- // private ToBeImplementedProperty prUnicodeBidi;
-
- // Unused but valid items, commented out for performance:
- // private CommonAural commonAural;
- // private CommonFont commonFont;
- // private CommonRelativePosition commonRelativePosition;
- // private Color prColor;
- // private SpaceProperty prWordSpacing;
- // End of property values
-
- /**
- * @param parent FONode that is the parent of this object
- */
- public BidiOverride(FONode parent) {
- super(parent);
-
- /* Check to see if this node can have block-level children.
- * See validateChildNode() below.
- */
- int lvlLeader = findAncestor(FO_LEADER);
- int lvlInCntr = findAncestor(FO_INLINE_CONTAINER);
- int lvlInline = findAncestor(FO_INLINE);
- int lvlFootnote = findAncestor(FO_FOOTNOTE);
-
- if (lvlLeader > 0) {
- if (lvlInCntr < 0 || (lvlInCntr > 0 && lvlInCntr > lvlLeader)) {
- canHaveBlockLevelChildren = false;
- }
- } else if (lvlInline > 0 && lvlFootnote == (lvlInline + 1)) {
- if (lvlInCntr < 0 || (lvlInCntr > 0 && lvlInCntr > lvlInline)) {
- canHaveBlockLevelChildren = false;
- }
- }
-
- }
-
- /**
- * {@inheritDoc}
- */
- public void bind(PropertyList pList) throws FOPException {
- // prDirection = pList.get(PR_DIRECTION);
- // prLetterSpacing = pList.get(PR_LETTER_SPACING);
- lineHeight = pList.get(PR_LINE_HEIGHT).getSpace();
- // prScoreSpaces = pList.get(PR_SCORE_SPACES);
- // prUnicodeBidi = pList.get(PR_UNICODE_BIDI);
- }
-
- /**
- * {@inheritDoc}
- * XSL Content Model: marker* (#PCDATA|%inline;|%block;)*
- * Additionally: "An fo:bidi-override that is a descendant of an fo:leader
- * or of the fo:inline child of an fo:footnote may not have block-level
- * children, unless it has a nearer ancestor that is an
- * fo:inline-container."
- */
- protected void validateChildNode(Locator loc, String nsURI, String localName)
- throws ValidationException {
- if (FO_URI.equals(nsURI)) {
- if (localName.equals("marker")) {
- if (blockOrInlineItemFound) {
- nodesOutOfOrderError(loc, "fo:marker",
- "(#PCDATA|%inline;|%block;)");
- }
- } else if (!isBlockOrInlineItem(nsURI, localName)) {
- invalidChildError(loc, nsURI, localName);
- } else if (!canHaveBlockLevelChildren && isBlockItem(nsURI, localName)) {
- invalidChildError(loc, getParent().getName(), nsURI, getName(),
- "rule.bidiOverrideContent");
- } else {
- blockOrInlineItemFound = true;
- }
- }
- }
-
- /**
- * @return the "line-height" property.
- */
- public SpaceProperty getLineHeight() {
- return lineHeight;
- }
-
- /** {@inheritDoc} */
- public String getLocalName() {
- return "bidi-override";
- }
-
- /**
- * {@inheritDoc}
- */
- public int getNameId() {
- return FO_BIDI_OVERRIDE;
- }
- }
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