Indefinite page-height

[Walter Bauer]

Andreas, Matthias,
I've digged a little more into the code and would like to share what  
I've done and tested and so far.

I've added at the end of  
PageSequenceLayoutManager.PageBreaker.finishPart:
if (getCurrentPage().getSimplePageMaster().getPageHeight().getEnum()  
== Constants.EN_INDEFINITE) {
                Rectangle2D rect = getCurrentPV().getViewArea();
		getCurrentPV().getViewArea().setRect(rect.getX(), rect.getY(),  
rect.getWidth(), rect.getHeight() - pbp.difference);
}

After some experiments to set the height/width in the Constructor of  
PageViewport, I think it's better to defer it and resolve it in  
EnumLength.getValue:

public int getValue() {
        if (enumProperty.getEnum() == Constants.EN_INDEFINITE)
                Integer.MAX_VALUE;
        else
                return 0;
}

getValue is called in RegionBody.getViewportRectangle for example and  
changing getValue covers these calls as well.

Problems:

Actually it doesn't work that way. Returning Integer.MAX_VALUE in  
EnumLength.getValue fails, resulting in a ridiculous long PDF page.  
The length is off by 10000000. Returning some "huge" number instead  
like 10000000 but not Integer.MAX_VALUE  works however. Don't know  
why, but I suspect that there is some Integer overflow somewhere.

I'm not sure if PageSequenceLayoutManager.PageBreaker.finishPart is  
the right place to change the page size so tried a different approach  
leaving PageSequenceLayoutManager.PageBreaker.finishPart unchanged.

Putting this code into PageSequenceLayoutManager.finishPage:
if (curPage.getSimplePageMaster().getPageHeight().getEnum() ==  
Constants.EN_INDEFINITE) {
		int height = (int) curPage.getPageViewport().getBodyRegion 
().getRegionViewport().getViewArea().getY();
		List spanList = curPage.getPageViewport().getBodyRegion 
().getMainReference().getSpans();
                ListIterator spanListIter = spanList.listIterator();
                while (spanListIter.hasNext()) {
                                Span span = (Span) spanListIter.next();
                                height += span.getHeight();
                }
                Rectangle2D rect = curPage.getPageViewport().getViewArea();
		curPage.getPageViewport().getViewArea().setRect(rect.getX(),  
rect.getY(), rect.getWidth(), height);
}

works neatly, even with Integer.MAX_VALUE. However I don't like this  
"manual" height recalculation too much.

Additional to dos / questions:

fo:region-body margin-bottom="1in" doesn't work yet
The after region has to be adjusted, otherwise it doesn't appear. How  
to do that?
Support of page-width="indefinite"

Best regards,
Walter