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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.pagination.*;
import org.apache.fop.datatypes.*;
import org.apache.fop.fo.properties.*;
import org.apache.fop.layout.*;
import org.apache.fop.apps.FOPException;
import org.apache.fop.layoutmgr.LeafNodeLayoutManager;
import org.apache.fop.area.inline.InlineArea;
import org.apache.fop.area.PageViewport;
import org.apache.fop.util.CharUtilities;
import org.apache.fop.apps.StructureHandler;
import org.apache.fop.layoutmgr.LayoutContext;
import org.apache.fop.layoutmgr.LayoutManager;
import org.apache.fop.layoutmgr.PositionIterator;
import org.apache.fop.area.inline.Word;
import org.apache.fop.area.inline.UnresolvedPageNumber;
import org.apache.fop.area.Resolveable;
import org.apache.fop.area.Trait;
import java.util.List;
import java.util.ArrayList;
/**
* Page number citation.
* This inline fo is replaced with the text for a page number.
* The page number used is the page that contains the start of the
* block referenced with the ref-id attribute.
*/
public class PageNumberCitation extends FObj {
protected FontInfo fontInfo = null;
protected FontState fontState;
float red;
float green;
float blue;
int wrapOption;
int whiteSpaceCollapse;
String pageNumber;
String refId;
TextState ts;
InlineArea inline = null;
boolean unresolved = false;
public PageNumberCitation(FONode parent) {
super(parent);
}
public void setStructHandler(StructureHandler st) {
super.setStructHandler(st);
fontInfo = st.getFontInfo();
}
public void addLayoutManager(List lms) {
setup();
lms.add(new LeafNodeLayoutManager(this) {
public InlineArea get(LayoutContext context) {
return getInlineArea(parentLM);
}
public void addAreas(PositionIterator posIter,
LayoutContext context) {
super.addAreas(posIter, context);
if (unresolved) {
parentLM.addUnresolvedArea(refId,
(Resolveable) inline);
}
}
protected void offsetArea(LayoutContext context) {
curArea.setOffset(context.getBaseline());
}
}
);
}
// if id can be resolved then simply return a word, otherwise
// return a resolveable area
private InlineArea getInlineArea(LayoutManager parentLM) {
if (refId.equals("")) {
getLogger().error("page-number-citation must contain \"ref-id\"");
return null;
}
PageViewport page = parentLM.resolveRefID(refId);
if (page != null) {
String str = page.getPageNumber();
// get page string from parent, build area
Word word = new Word();
inline = word;
int width = getStringWidth(str);
word.setWord(str);
inline.setIPD(width);
inline.setHeight(fontState.getAscender() -
fontState.getDescender());
inline.setOffset(fontState.getAscender());
inline.addTrait(Trait.FONT_NAME, fontState.getFontName());
inline.addTrait(Trait.FONT_SIZE,
new Integer(fontState.getFontSize()));
unresolved = false;
} else {
unresolved = true;
inline = new UnresolvedPageNumber(refId);
String str = "MMM"; // reserve three spaces for page number
int width = getStringWidth(str);
inline.setIPD(width);
inline.setHeight(fontState.getAscender() -
fontState.getDescender());
inline.setOffset(fontState.getAscender());
inline.addTrait(Trait.FONT_NAME, fontState.getFontName());
inline.addTrait(Trait.FONT_SIZE,
new Integer(fontState.getFontSize()));
}
return inline;
}
protected int getStringWidth(String str) {
int width = 0;
for (int count = 0; count < str.length(); count++) {
width += CharUtilities.getCharWidth(str.charAt(count),
fontState);
}
return width;
}
public void setup() {
// 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 Font Properties
this.fontState = propMgr.getFontState(fontInfo);
// Common Margin Properties-Inline
MarginInlineProps mProps = propMgr.getMarginInlineProps();
// Common Relative Position Properties
RelativePositionProps mRelProps =
propMgr.getRelativePositionProps();
// this.properties.get("alignment-adjust");
// this.properties.get("alignment-baseline");
// this.properties.get("baseline-shift");
// this.properties.get("dominant-baseline");
setupID();
// this.properties.get("keep-with-next");
// this.properties.get("keep-with-previous");
// this.properties.get("letter-spacing");
// this.properties.get("line-height");
// this.properties.get("line-height-shift-adjustment");
// this.properties.get("ref-id");
// this.properties.get("score-spaces");
// this.properties.get("text-decoration");
// this.properties.get("text-shadow");
// this.properties.get("text-transform");
// this.properties.get("word-spacing");
ColorType c = this.properties.get("color").getColorType();
this.red = c.red();
this.green = c.green();
this.blue = c.blue();
this.wrapOption = this.properties.get("wrap-option").getEnum();
this.whiteSpaceCollapse =
this.properties.get("white-space-collapse").getEnum();
this.refId = this.properties.get("ref-id").getString();
if (this.refId.equals("")) {
//throw new FOPException("page-number-citation must contain \"ref-id\"");
}
}
}
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