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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.layout;
// Java
import java.util.Vector;
import java.util.Enumeration;
import java.awt.Rectangle;
import org.apache.fop.layout.inline.InlineArea;
import org.apache.fop.fo.properties.WrapOption; // for enumerated
// values
// import org.apache.fop.fo.properties.WhiteSpaceCollapse; // for
// enumerated values
import org.apache.fop.fo.properties.TextAlign; // for enumerated
// values
import org.apache.fop.fo.properties.TextAlignLast; // for enumerated
// values
/**
* a set of rectangles on a page that are linked to a common
* destination
*/
public class LinkSet {
/**
* the destination of the links
*/
String destination;
/**
* the set of rectangles
*/
Vector rects = new Vector();
private int xoffset = 0;
private int yoffset = 0;
/* the maximum Y offset value encountered for this LinkSet */
private int maxY = 0;
protected int startIndent;
protected int endIndent;
private int linkType;
private Area area;
public final static int INTERNAL = 0, // represents internal link
EXTERNAL = 1; // represents external link
// property required for alignment adjustments
int contentRectangleWidth = 0;
public LinkSet(String destination, Area area, int linkType) {
this.destination = destination;
this.area = area;
this.linkType = linkType;
}
public void addRect(Rectangle r, LineArea lineArea,
InlineArea inlineArea) {
LinkedRectangle linkedRectangle = new LinkedRectangle(r, lineArea,
inlineArea);
linkedRectangle.setY(this.yoffset);
if (this.yoffset > maxY) {
maxY = this.yoffset;
}
rects.addElement(linkedRectangle);
}
public void setYOffset(int y) {
this.yoffset = y;
}
public void setXOffset(int x) {
this.xoffset = x;
}
public void setContentRectangleWidth(int contentRectangleWidth) {
this.contentRectangleWidth = contentRectangleWidth;
}
public void applyAreaContainerOffsets(AreaContainer ac, Area area) {
int height = area.getAbsoluteHeight();
BlockArea ba = (BlockArea)area;
Enumeration re = rects.elements();
while (re.hasMoreElements()) {
LinkedRectangle r = (LinkedRectangle)re.nextElement();
r.setX(r.getX() + ac.getXPosition() + area.getTableCellXOffset());
r.setY(ac.getYPosition() - height + (maxY - r.getY())
- ba.getHalfLeading());
}
}
// intermediate implementation for joining all sublinks on same line
public void mergeLinks() {
int numRects = rects.size();
if (numRects == 1)
return;
LinkedRectangle curRect =
new LinkedRectangle((LinkedRectangle)rects.elementAt(0));
Vector nv = new Vector();
for (int ri = 1; ri < numRects; ri++) {
LinkedRectangle r = (LinkedRectangle)rects.elementAt(ri);
// yes, I'm really happy with comparing refs...
if (r.getLineArea() == curRect.getLineArea()) {
curRect.setWidth(r.getX() + r.getWidth() - curRect.getX());
} else {
nv.addElement(curRect);
curRect = new LinkedRectangle(r);
}
if (ri == numRects - 1)
nv.addElement(curRect);
}
rects = nv;
}
public void align() {
Enumeration re = rects.elements();
while (re.hasMoreElements()) {
LinkedRectangle r = (LinkedRectangle)re.nextElement();
r.setX(r.getX() + r.getLineArea().getStartIndent()
+ r.getInlineArea().getXOffset());
}
}
public String getDest() {
return this.destination;
}
public Vector getRects() {
return this.rects;
}
public int getEndIndent() {
return endIndent;
}
public int getStartIndent() {
return startIndent;
}
public Area getArea() {
return area;
}
public int getLinkType() {
return linkType;
}
}
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