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/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.fo.flow;
// FOP
import org.apache.fop.fo.*;
import org.apache.fop.fo.properties.*;
import org.apache.fop.layout.*;
import org.apache.fop.layout.BlockArea;
import org.apache.fop.layout.FontState;
import org.apache.fop.apps.FOPException;
// Java
import java.util.Enumeration;
public class ListItem extends FObj {
public static class Maker extends FObj.Maker {
public FObj make(FObj parent,
PropertyList propertyList) throws FOPException {
return new ListItem(parent, propertyList);
}
}
public static FObj.Maker maker() {
return new ListItem.Maker();
}
int align;
int alignLast;
int breakBefore;
int breakAfter;
int lineHeight;
int startIndent;
int endIndent;
int spaceBefore;
int spaceAfter;
String id;
BlockArea blockArea;
public ListItem(FObj parent, PropertyList propertyList) {
super(parent, propertyList);
this.name = "fo:list-item";
}
public Status layout(Area area) throws FOPException {
if (this.marker == START) {
// Common Accessibility Properties
AccessibilityProps mAccProps = propMgr.getAccessibilityProps();
// Common Aural Properties
AuralProps mAurProps = propMgr.getAuralProps();
// Common Border, Padding, and Background Properties
BorderAndPadding bap = propMgr.getBorderAndPadding();
BackgroundProps bProps = propMgr.getBackgroundProps();
// Common Margin Properties-Block
MarginProps mProps = propMgr.getMarginProps();
// Common Relative Position Properties
RelativePositionProps mRelProps = propMgr.getRelativePositionProps();
// this.properties.get("break-after");
// this.properties.get("break-before");
// this.properties.get("id");
// this.properties.get("keep-together");
// this.properties.get("keep-with-next");
// this.properties.get("keep-with-previous");
// this.properties.get("relative-align");
this.align = this.properties.get("text-align").getEnum();
this.alignLast = this.properties.get("text-align-last").getEnum();
this.lineHeight =
this.properties.get("line-height").getLength().mvalue();
this.spaceBefore =
this.properties.get("space-before.optimum").getLength().mvalue();
this.spaceAfter =
this.properties.get("space-after.optimum").getLength().mvalue();
this.id = this.properties.get("id").getString();
area.getIDReferences().createID(id);
this.marker = 0;
}
/* not sure this is needed given we know area is from list block */
if (area instanceof BlockArea) {
area.end();
}
if (spaceBefore != 0) {
area.addDisplaySpace(spaceBefore);
}
this.blockArea =
new BlockArea(propMgr.getFontState(area.getFontInfo()),
area.getAllocationWidth(), area.spaceLeft(), 0, 0,
0, align, alignLast, lineHeight);
this.blockArea.setGeneratedBy(this);
this.areasGenerated++;
if (this.areasGenerated == 1)
this.blockArea.isFirst(true);
// for normal areas this should be the only pair
this.blockArea.addLineagePair(this, this.areasGenerated);
// markers
if (this.hasMarkers())
this.blockArea.addMarkers(this.getMarkers());
blockArea.setPage(area.getPage());
blockArea.start();
blockArea.setAbsoluteHeight(area.getAbsoluteHeight());
blockArea.setIDReferences(area.getIDReferences());
int numChildren = this.children.size();
if (numChildren != 2) {
throw new FOPException("list-item must have exactly two children");
}
ListItemLabel label = (ListItemLabel)children.elementAt(0);
ListItemBody body = (ListItemBody)children.elementAt(1);
Status status;
// what follows doesn't yet take into account whether the
// body failed completely or only got some text in
if (this.marker == 0) {
// configure id
area.getIDReferences().configureID(id, area);
status = label.layout(blockArea);
if (status.isIncomplete()) {
return status;
}
}
status = body.layout(blockArea);
if (status.isIncomplete()) {
blockArea.end();
area.addChild(blockArea);
area.increaseHeight(blockArea.getHeight());
area.setAbsoluteHeight(blockArea.getAbsoluteHeight());
this.marker = 1;
return status;
}
blockArea.end();
area.addChild(blockArea);
area.increaseHeight(blockArea.getHeight());
area.setAbsoluteHeight(blockArea.getAbsoluteHeight());
if (spaceAfter != 0) {
area.addDisplaySpace(spaceAfter);
}
/* not sure this is needed given we know area is from list block */
if (area instanceof BlockArea) {
area.start();
}
this.blockArea.isLast(true);
return new Status(Status.OK);
}
/**
* Return the content width of the boxes generated by this FO.
*/
public int getContentWidth() {
if (blockArea != null)
return blockArea.getContentWidth(); // getAllocationWidth()??
else
return 0; // not laid out yet
}
}
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