org.apache.fop.fo.flow.ListItem Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of fop Show documentation
Show all versions of fop Show documentation
Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF.
/*
* 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: ListItem.java 1805173 2017-08-16 10:50:04Z ssteiner $ */
package org.apache.fop.fo.flow;
import java.util.Stack;
import org.xml.sax.Locator;
import org.apache.fop.apps.FOPException;
import org.apache.fop.complexscripts.bidi.DelimitedTextRange;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.FObj;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.ValidationException;
import org.apache.fop.fo.properties.BreakPropertySet;
import org.apache.fop.fo.properties.CommonAccessibility;
import org.apache.fop.fo.properties.CommonAccessibilityHolder;
import org.apache.fop.fo.properties.CommonBorderPaddingBackground;
import org.apache.fop.fo.properties.CommonMarginBlock;
import org.apache.fop.fo.properties.KeepProperty;
/**
* Class modelling the list item
* fo:list-item
object.
*/
public class ListItem extends FObj implements BreakPropertySet, CommonAccessibilityHolder {
// The value of properties relevant for fo:list-item.
private CommonAccessibility commonAccessibility;
private CommonBorderPaddingBackground commonBorderPaddingBackground;
private CommonMarginBlock commonMarginBlock;
private int breakAfter;
private int breakBefore;
private KeepProperty keepTogether;
private KeepProperty keepWithNext;
private KeepProperty keepWithPrevious;
// Unused but valid items, commented out for performance:
// private CommonAural commonAural;
// private CommonRelativePosition commonRelativePosition;
// private int intrusionDisplace;
// private int relativeAlign;
// End of property values
private ListItemLabel label;
private ListItemBody body;
/**
* Base constructor
*
* @param parent {@link FONode} that is the parent of this object
*/
public ListItem(FONode parent) {
super(parent);
}
/** {@inheritDoc} */
public void bind(PropertyList pList) throws FOPException {
super.bind(pList);
commonAccessibility = CommonAccessibility.getInstance(pList);
commonBorderPaddingBackground = pList.getBorderPaddingBackgroundProps();
commonMarginBlock = pList.getMarginBlockProps();
breakAfter = pList.get(PR_BREAK_AFTER).getEnum();
breakBefore = pList.get(PR_BREAK_BEFORE).getEnum();
keepTogether = pList.get(PR_KEEP_TOGETHER).getKeep();
keepWithNext = pList.get(PR_KEEP_WITH_NEXT).getKeep();
keepWithPrevious = pList.get(PR_KEEP_WITH_PREVIOUS).getKeep();
}
/** {@inheritDoc} */
public void startOfNode() throws FOPException {
super.startOfNode();
getFOEventHandler().startListItem(this);
}
/** {@inheritDoc} */
public void endOfNode() throws FOPException {
if (label == null || body == null) {
missingChildElementError("marker* (list-item-label,list-item-body)");
}
getFOEventHandler().endListItem(this);
}
/**
* {@inheritDoc}
*
XSL Content Model: marker* (list-item-label,list-item-body)
*/
protected void validateChildNode(Locator loc, String nsURI, String localName)
throws ValidationException {
if (FO_URI.equals(nsURI)) {
if (localName.equals("marker")) {
if (label != null) {
nodesOutOfOrderError(loc, "fo:marker", "fo:list-item-label");
}
} else if (localName.equals("list-item-label")) {
if (label != null) {
tooManyNodesError(loc, "fo:list-item-label");
}
} else if (localName.equals("list-item-body")) {
if (label == null) {
nodesOutOfOrderError(loc, "fo:list-item-label", "fo:list-item-body");
} else if (body != null) {
tooManyNodesError(loc, "fo:list-item-body");
}
} else {
invalidChildError(loc, nsURI, localName);
}
}
}
/**
* {@inheritDoc}
* TODO see if can/should rely on base class for this
* (i.e., add to childNodes instead)
*/
public void addChildNode(FONode child) {
int nameId = child.getNameId();
if (nameId == FO_LIST_ITEM_LABEL) {
label = (ListItemLabel) child;
} else if (nameId == FO_LIST_ITEM_BODY) {
body = (ListItemBody) child;
} else if (nameId == FO_MARKER) {
addMarker((Marker) child);
}
}
/** {@inheritDoc} */
public CommonAccessibility getCommonAccessibility() {
return commonAccessibility;
}
/** @return the {@link CommonMarginBlock} */
public CommonMarginBlock getCommonMarginBlock() {
return commonMarginBlock;
}
/** @return the {@link CommonBorderPaddingBackground} */
public CommonBorderPaddingBackground getCommonBorderPaddingBackground() {
return commonBorderPaddingBackground;
}
/** @return the "break-after" property */
public int getBreakAfter() {
return breakAfter;
}
/** @return the "break-before" property */
public int getBreakBefore() {
return breakBefore;
}
/** @return the "keep-with-next" property */
public KeepProperty getKeepWithNext() {
return keepWithNext;
}
/** @return the "keep-with-previous" property */
public KeepProperty getKeepWithPrevious() {
return keepWithPrevious;
}
/** @return the "keep-together" property */
public KeepProperty getKeepTogether() {
return keepTogether;
}
/** @return the label of the list item */
public ListItemLabel getLabel() {
return label;
}
/**
* @return the body of the list item
*/
public ListItemBody getBody() {
return body;
}
/** {@inheritDoc} */
public String getLocalName() {
return "list-item";
}
/**
* {@inheritDoc}
* @return {@link org.apache.fop.fo.Constants#FO_LIST_ITEM}
*/
public int getNameId() {
return FO_LIST_ITEM;
}
@Override
protected Stack collectDelimitedTextRanges(Stack ranges,
DelimitedTextRange currentRange) {
ListItemLabel label = getLabel();
if (label != null) {
ranges = label.collectDelimitedTextRanges(ranges);
}
ListItemBody body = getBody();
if (body != null) {
ranges = body.collectDelimitedTextRanges(ranges);
}
return ranges;
}
}