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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.table;
import org.xml.sax.Locator;
import org.apache.fop.apps.FOPException;
import org.apache.fop.datatypes.Length;
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;
import org.apache.fop.fo.properties.LengthRangeProperty;
/**
* Class modelling the <a href="http://www.w3.org/TR/xsl/#fo_table-cell">
* <code>fo:table-cell</code></a> object.
*/
public class TableCell extends TableFObj {
// The value of properties relevant for fo:table-cell.
private CommonBorderPaddingBackground commonBorderPaddingBackground;
private LengthRangeProperty blockProgressionDimension;
private int columnNumber;
private int displayAlign;
private int emptyCells;
private int endsRow;
private int numberColumnsSpanned;
private int numberRowsSpanned;
private int startsRow;
private Length width;
// Unused but valid items, commented out for performance:
// private CommonAccessibility commonAccessibility;
// private CommonAural commonAural;
// private CommonRelativePosition commonRelativePosition;
// private int relativeAlign;
// private Length height;
// private LengthRangeProperty inlineProgressionDimension;
// private KeepProperty keepTogether;
// private KeepProperty keepWithNext;
// private KeepProperty keepWithPrevious;
// End of property values
/** used for FO validation */
private boolean blockItemFound = false;
/**
* Create a TableCell instance with the given {@link FONode}
* as parent.
* @param parent {@link FONode} that is the parent of this object
*/
public TableCell(FONode parent) {
super(parent);
}
/**
* {@inheritDoc}
*/
public void bind(PropertyList pList) throws FOPException {
super.bind(pList);
commonBorderPaddingBackground = pList.getBorderPaddingBackgroundProps();
blockProgressionDimension = pList.get(PR_BLOCK_PROGRESSION_DIMENSION).getLengthRange();
displayAlign = pList.get(PR_DISPLAY_ALIGN).getEnum();
emptyCells = pList.get(PR_EMPTY_CELLS).getEnum();
startsRow = pList.get(PR_STARTS_ROW).getEnum();
// For properly computing columnNumber
if (startsRow() && getParent().getNameId() != FO_TABLE_ROW) {
((TableBody) getParent()).signalNewRow();
}
endsRow = pList.get(PR_ENDS_ROW).getEnum();
columnNumber = pList.get(PR_COLUMN_NUMBER).getNumeric().getValue();
numberColumnsSpanned = pList.get(PR_NUMBER_COLUMNS_SPANNED).getNumeric().getValue();
numberRowsSpanned = pList.get(PR_NUMBER_ROWS_SPANNED).getNumeric().getValue();
width = pList.get(PR_WIDTH).getLength();
}
/** {@inheritDoc} */
public void startOfNode() throws FOPException {
super.startOfNode();
getFOEventHandler().startCell(this);
}
/**
* Make sure content model satisfied, if so then tell the
* FOEventHandler that we are at the end of the flow.
* {@inheritDoc}
*/
public void endOfNode() throws FOPException {
if (!blockItemFound) {
missingChildElementError("marker* (%block;)+", true);
}
if ((startsRow() || endsRow())
&& getParent().getNameId() == FO_TABLE_ROW ) {
TableEventProducer eventProducer = TableEventProducer.Provider.get(
getUserAgent().getEventBroadcaster());
eventProducer.startEndRowUnderTableRowWarning(this, getLocator());
}
getFOEventHandler().endCell(this);
}
/**
* {@inheritDoc}
* <br>XSL Content Model: marker* (%block;)+
*/
protected void validateChildNode(Locator loc, String nsURI, String localName)
throws ValidationException {
if (FO_URI.equals(nsURI)) {
if (localName.equals("marker")) {
if (blockItemFound) {
nodesOutOfOrderError(loc, "fo:marker", "(%block;)");
}
} else if (!isBlockItem(nsURI, localName)) {
invalidChildError(loc, nsURI, localName);
} else {
blockItemFound = true;
}
}
}
/** {@inheritDoc} */
public boolean generatesReferenceAreas() {
return true;
}
/**
* Get the {@link CommonBorderPaddingBackground} instance
* attached to this TableCell.
* @return the {@link CommonBorderPaddingBackground} instance
*/
public CommonBorderPaddingBackground getCommonBorderPaddingBackground() {
return this.commonBorderPaddingBackground;
}
/**
* Get the value for the <code>column-number</code> property.
* @return the "column-number" property.
*/
public int getColumnNumber() {
return columnNumber;
}
/**
* Get the value for the <code>empty-cells</code> property.
* @return true if "empty-cells" is "show"
*/
public boolean showEmptyCells() {
return (this.emptyCells == EN_SHOW);
}
/**
* Get the value for the <code>number-columns-spanned</code> property
* @return the "number-columns-spanned" property.
*/
public int getNumberColumnsSpanned() {
return Math.max(numberColumnsSpanned, 1);
}
/**
* Get the value for the <code>number-rows-spanned</code> property
* @return the "number-rows-spanned" property.
*/
public int getNumberRowsSpanned() {
return Math.max(numberRowsSpanned, 1);
}
/**
* Get the value for the <code>block-progression-dimension</code> property
* @return the "block-progression-dimension" property.
*/
public LengthRangeProperty getBlockProgressionDimension() {
return blockProgressionDimension;
}
/**
* Get the value for the <code>display-align</code> property
* @return the display-align property.
*/
public int getDisplayAlign() {
return displayAlign;
}
/**
* Get the value for the <code>width</code> property
* @return the "width" property.
*/
public Length getWidth() {
return width;
}
/**
* Get the value for the <code>starts-row</code> property
* @return true if the cell starts a row.
*/
public boolean startsRow() {
return (startsRow == EN_TRUE);
}
/**
* Get the value for the <code>ends-row</code> property
* @return true if the cell ends a row.
*/
public boolean endsRow() {
return (endsRow == EN_TRUE);
}
/** {@inheritDoc} */
public String getLocalName() {
return "table-cell";
}
/**
* {@inheritDoc}
* @return {@link org.apache.fop.fo.Constants#FO_TABLE_CELL}
*/
public final int getNameId() {
return FO_TABLE_CELL;
}
}
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