/**
* Called to initialize the outline by setting the top level bookmark.
*
* @param bookmark top level bookmark.
*/
public void setFirstBookmark(final Bookmark bookmark) {
final Vector activeVector = getActiveVector();
synchronized (activeVector) {
final Hashtable parentMap = getParentMap();
parentMap.clear();
final Vector pagenoVector = getPagenoVector();
pagenoVector.setSize(0);
getDepthMap().clear();
mapChildren(bookmark, parentMap, pagenoVector, new Integer(0));
activeVector.setSize(0);
activeVector.addElement(bookmark);
setCheckedItem(0, true);
}
}
/**
* Query the maximum image size allowed.
*
* @return the maximum image size allowed.
*/
public Dimension getMaximumSize() {
final Dimension retval = new Dimension();
final Hashtable depthMap = getDepthMap();
int item = 0;
synchronized (getActiveVector()) {
final Enumeration keys = getDepthMap().keys();
while (keys.hasMoreElements()) {
final Bookmark bookmark = (Bookmark) keys.nextElement();
final Rectangle bounds = getTextBounds(item++, bookmark, depthMap.get(bookmark));
final int width = bounds.x + bounds.width;
if (width > retval.width) {
retval.width = width;
}
retval.height = bounds.y + bounds.height;
}
}
retval.width += (2 * getFontMetrics(getFont()).getMaxAdvance());
retval.height += (2 * getFontHeight());
return retval;
}
/**
* Called to create a map the parent of each bookmark.
*
* @param parent top level bookmark.
* @param parentMap map to add children to.
* @param pagenoVector vector of page numbers.
* @param depth object indicating bookmark depth.
*/
protected void mapChildren(
final Bookmark parent,
final Hashtable parentMap,
final Vector pagenoVector,
final Number depth) {
getDepthMap().put(parent, depth);
final int pageno = parent.getPageno();
if (pageno >= 0) {
while (pageno >= pagenoVector.size()) {
pagenoVector.addElement(null);
}
pagenoVector.setElementAt(parent, pageno);
}
final Enumeration e = parent.elements();
if (e.hasMoreElements()) {
final Number childDepth = new Integer(depth.intValue() + 1);
do {
final Bookmark child = (Bookmark) e.nextElement();
parentMap.put(child, parent);
mapChildren(child, parentMap, pagenoVector, childDepth);
} while (e.hasMoreElements());
}
}