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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: TableBody.java 655614 2008-05-12 19:37:39Z vhennebert $ */
package org.apache.fop.fo.flow.table;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import org.xml.sax.Attributes;
import org.xml.sax.Locator;
import org.apache.fop.apps.FOPException;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.ValidationException;
import org.apache.fop.fo.properties.CommonBorderPaddingBackground;
/**
* An abstract base class modelling a TablePart
* (i.e. fo:table-header, fo:table-footer and fo:table-body).
*/
public abstract class TablePart extends TableCellContainer {
// The value of properties relevant for fo:table-body.
private CommonBorderPaddingBackground commonBorderPaddingBackground;
// Unused but valid items, commented out for performance:
// private CommonAccessibility commonAccessibility;
// private CommonAural commonAural;
// private CommonRelativePosition commonRelativePosition;
// private int visibility;
// End of property values
/**
* used for validation
*/
protected boolean tableRowsFound = false;
protected boolean tableCellsFound = false;
private boolean firstRow = true;
private boolean rowsStarted = false;
private boolean lastCellEndsRow = true;
private List rowGroups = new LinkedList();
/**
* Create a TablePart instance with the given {@link FONode}
* as parent.
* @param parent FONode that is the parent of the object
*/
public TablePart(FONode parent) {
super(parent);
}
/** {@inheritDoc} */
public void bind(PropertyList pList) throws FOPException {
commonBorderPaddingBackground = pList.getBorderPaddingBackgroundProps();
super.bind(pList);
}
/** {@inheritDoc} */
public void processNode(String elementName, Locator locator,
Attributes attlist, PropertyList pList)
throws FOPException {
super.processNode(elementName, locator, attlist, pList);
if (!inMarker()) {
Table t = getTable();
if (t.hasExplicitColumns()) {
int size = t.getNumberOfColumns();
pendingSpans = new ArrayList(size);
for (int i = 0; i < size; i++) {
pendingSpans.add(null);
}
} else {
pendingSpans = new ArrayList();
}
columnNumberManager = new ColumnNumberManager();
}
}
/** {@inheritDoc} */
public void finalizeNode() throws FOPException {
if (!inMarker()) {
pendingSpans = null;
columnNumberManager = null;
}
if (!(tableRowsFound || tableCellsFound)) {
missingChildElementError("marker* (table-row+|table-cell+)", true);
getParent().removeChild(this);
} else {
finishLastRowGroup();
}
}
/** {@inheritDoc} */
TablePart getTablePart() {
return this;
}
protected void finishLastRowGroup() throws ValidationException {
if (!inMarker()) {
RowGroupBuilder rowGroupBuilder = getTable().getRowGroupBuilder();
if (tableRowsFound) {
rowGroupBuilder.endTableRow();
} else if (!lastCellEndsRow) {
rowGroupBuilder.endRow(this);
}
try {
rowGroupBuilder.endTablePart();
} catch (ValidationException e) {
e.setLocator(locator);
throw e;
}
}
}
/**
* {@inheritDoc}
* <br>XSL Content Model: marker* (table-row+|table-cell+)
*/
protected void validateChildNode(Locator loc, String nsURI, String localName)
throws ValidationException {
if (FO_URI.equals(nsURI)) {
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) {
TableEventProducer eventProducer = TableEventProducer.Provider.get(
getUserAgent().getEventBroadcaster());
eventProducer.noMixRowsAndCells(this, getName(), getLocator());
}
} else if (localName.equals("table-cell")) {
tableCellsFound = true;
if (tableRowsFound) {
TableEventProducer eventProducer = TableEventProducer.Provider.get(
getUserAgent().getEventBroadcaster());
eventProducer.noMixRowsAndCells(this, getName(), getLocator());
}
} else {
invalidChildError(loc, nsURI, localName);
}
}
}
/** {@inheritDoc} */
protected void addChildNode(FONode child) throws FOPException {
if (!inMarker()) {
switch (child.getNameId()) {
case FO_TABLE_ROW:
if (!rowsStarted) {
getTable().getRowGroupBuilder().startTablePart(this);
} else {
columnNumberManager.prepareForNextRow(pendingSpans);
getTable().getRowGroupBuilder().endTableRow();
}
rowsStarted = true;
getTable().getRowGroupBuilder().startTableRow((TableRow)child);
break;
case FO_TABLE_CELL:
if (!rowsStarted) {
getTable().getRowGroupBuilder().startTablePart(this);
}
rowsStarted = true;
TableCell cell = (TableCell) child;
addTableCellChild(cell, firstRow);
lastCellEndsRow = cell.endsRow();
if (lastCellEndsRow) {
firstRow = false;
columnNumberManager.prepareForNextRow(pendingSpans);
getTable().getRowGroupBuilder().endRow(this);
}
break;
default:
//nop
}
}
super.addChildNode(child);
}
void addRowGroup(List rowGroup) {
rowGroups.add(rowGroup);
}
public List getRowGroups() {
return rowGroups;
}
/**
* Get the {@link CommonBorderPaddingBackground} instance attached
* to this TableBody.
* @return the {@link CommonBorderPaddingBackground} instance.
*/
public CommonBorderPaddingBackground getCommonBorderPaddingBackground() {
return commonBorderPaddingBackground;
}
/**
* @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 (firstChild == null
|| firstChild == obj);
}
void signalNewRow() {
if (rowsStarted) {
firstRow = false;
if (!lastCellEndsRow) {
columnNumberManager.prepareForNextRow(pendingSpans);
getTable().getRowGroupBuilder().endRow(this);
}
}
}
}
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