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/*
* Copyright 1999-2005 The Apache Software Foundation.
*
* Licensed 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;
// Java
import java.util.Iterator;
import java.util.List;
import org.xml.sax.Locator;
import org.apache.fop.apps.FOPException;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.FObj;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.StaticPropertyList;
import org.apache.fop.fo.ValidationException;
import org.apache.fop.fo.properties.CommonAccessibility;
import org.apache.fop.fo.properties.CommonAural;
import org.apache.fop.fo.properties.CommonBorderPaddingBackground;
import org.apache.fop.fo.properties.CommonRelativePosition;
/**
* Class modelling the fo:table-body object.
*/
public class TableBody extends FObj {
// The value of properties relevant for fo:table-body.
private CommonAccessibility commonAccessibility;
private CommonAural commonAural;
private CommonBorderPaddingBackground commonBorderPaddingBackground;
private CommonRelativePosition commonRelativePosition;
// private ToBeImplementedProperty borderAfterPrecedence;
// private ToBeImplementedProperty borderBeforePrecedence;
// private ToBeImplementedProperty borderEndPrecedence;
// private ToBeImplementedProperty borderStartPrecedence;
private int visibility;
// End of property values
private PropertyList savedPropertyList;
protected boolean tableRowsFound = false;
protected boolean tableCellsFound = false;
/**
* @param parent FONode that is the parent of the object
*/
public TableBody(FONode parent) {
super(parent);
}
/**
* @see FObj#bind(PropertyList)
*/
public void bind(PropertyList pList) throws FOPException {
commonAccessibility = pList.getAccessibilityProps();
commonAural = pList.getAuralProps();
commonBorderPaddingBackground = pList.getBorderPaddingBackgroundProps();
commonRelativePosition = pList.getRelativePositionProps();
// borderAfterPrecedence = pList.get(PR_BORDER_AFTER_PRECEDENCE);
// borderBeforePrecedence = pList.get(PR_BORDER_BEFORE_PRECEDENCE);
// borderEndPrecedence = pList.get(PR_BORDER_END_PRECEDENCE);
// borderStartPrecedence = pList.get(PR_BORDER_START_PRECEDENCE);
visibility = pList.get(PR_VISIBILITY).getEnum();
//Used by convertCellsToRows()
savedPropertyList = pList;
}
/**
* @see org.apache.fop.fo.FONode#startOfNode
*/
protected void startOfNode() throws FOPException {
getFOEventHandler().startBody(this);
}
/**
* @see org.apache.fop.fo.FONode#endOfNode
*/
protected void endOfNode() throws FOPException {
getFOEventHandler().endBody(this);
if (!(tableRowsFound || tableCellsFound)) {
if (getUserAgent().validateStrictly()) {
missingChildElementError("marker* (table-row+|table-cell+)");
} else {
getLogger().error("fo:table-body must not be empty. "
+ "Expected: marker* (table-row+|table-cell+)");
getParent().removeChild(this);
}
}
if (tableCellsFound) {
convertCellsToRows();
}
savedPropertyList = null; //Release reference
}
/**
* @see org.apache.fop.fo.FONode#validateChildNode(Locator, String, String)
* XSL Content Model: marker* (table-row+|table-cell+)
*/
protected void validateChildNode(Locator loc, String nsURI, String localName)
throws ValidationException {
if (nsURI == FO_URI) {
if (localName.equals("marker")) {
if (tableRowsFound || tableCellsFound) {
nodesOutOfOrderError(loc, "fo:marker", "(table-row+|table-cell+)");
}
} else if (localName.equals("table-row")) {
tableRowsFound = true;
if (tableCellsFound) {
invalidChildError(loc, nsURI, localName, "Either fo:table-rows" +
" or fo:table-cells may be children of an " + getName() +
" but not both");
}
} else if (localName.equals("table-cell")) {
tableCellsFound = true;
if (tableRowsFound) {
invalidChildError(loc, nsURI, localName, "Either fo:table-rows" +
" or fo:table-cells may be children of an " + getName() +
" but not both");
}
} else {
invalidChildError(loc, nsURI, localName);
}
} else {
invalidChildError(loc, nsURI, localName);
}
}
/**
* If table-cells are used as direct children of a table-body|header|footer
* they are replaced in this method by proper table-rows.
* @throws FOPException if there's a problem binding the TableRows properties.
*/
private void convertCellsToRows() throws FOPException {
//getLogger().debug("Converting cells to rows...");
List cells = (List)childNodes.clone();
childNodes.clear();
Iterator i = cells.iterator();
TableRow row = null;
while (i.hasNext()) {
TableCell cell = (TableCell)i.next();
if (cell.startsRow() && (row != null)) {
childNodes.add(row);
row = null;
}
if (row == null) {
row = new TableRow(this);
PropertyList pList = new StaticPropertyList(row, savedPropertyList);
pList.setWritingMode();
row.bind(pList);
}
row.addReplacedCell(cell);
if (cell.endsRow()) {
childNodes.add(row);
row = null;
}
}
if (row != null) {
childNodes.add(row);
}
}
/**
* @return the Common Border, Padding, and Background Properties.
*/
public CommonBorderPaddingBackground getCommonBorderPaddingBackground() {
return commonBorderPaddingBackground;
}
/**
* @see org.apache.fop.fo.FObj#getName()
*/
public String getName() {
return "fo:table-body";
}
/**
* @see org.apache.fop.fo.FObj#getNameId()
*/
public int getNameId() {
return FO_TABLE_BODY;
}
/**
* @param obj table row in question
* @return true if the given table row is the first row of this body.
*/
public boolean isFirst(TableRow obj) {
return (childNodes.size() > 0)
&& (childNodes.get(0) == obj);
}
/**
* @param obj table row in question
* @return true if the given table row is the first row of this body.
*/
public boolean isLast(TableRow obj) {
return (childNodes.size() > 0)
&& (childNodes.get(childNodes.size() - 1) == obj);
}
}
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