protected boolean performPagination(final LayoutPagebreakHandler layoutPagebreakHandler,
final boolean performOutput)
throws ContentProcessingException
{
final OutputProcessor outputProcessor = getOutputProcessor();
// next: perform pagination.
final LogicalPageBox pageBox = getPageBox();
// final long sizeBeforePagination = pageBox.getHeight();
//final LogicalPageBox clone = (LogicalPageBox) pageBox.deriveForAdvance(true);
final PaginationResult pageBreak = paginationStep.performPagebreak(pageBox);
if (pageBreak.isOverflow() || pageBox.isOpen() == false)
{
setLastStateKey(pageBreak.getLastVisibleState());
// final long sizeAfterPagination = pageBox.getHeight();
setPagebreaks(getPagebreaks() + 1);
pageBox.setAllVerticalBreaks(pageBreak.getAllBreaks());
flowCount += 1;
debugPrint(pageBox);
// A new page has been started. Recover the page-grid, then restart
// everything from scratch. (We have to recompute, as the pages may
// be different now, due to changed margins or page definitions)
final long nextOffset = pageBox.computePageEnd();
pageBox.setPageEnd(nextOffset);
final long pageOffset = pageBox.getPageOffset();
if (performOutput)
{
if (outputProcessor.isNeedAlignedPage())
{
final LogicalPageBox box = fillPhysicalPagesStep.compute(pageBox, pageOffset, nextOffset);
// DebugLog.log("Processing contents for Page " + flowCount + " Page-Offset: " + pageOffset + " -> " + nextOffset);
outputProcessor.processContent(box);
}
else
{
// DebugLog.log("Processing fast contents for Page " + flowCount + " Page-Offset: " + pageOffset + " -> " + nextOffset);
outputProcessor.processContent(pageBox);
}
}
else
{
// DebugLog.log("Recomputing contents for Page " + flowCount + " Page-Offset: " + pageOffset + " -> " + nextOffset);
outputProcessor.processRecomputedContent(pageBox);
}
// Now fire the pagebreak. This goes through all layers and informs all
// components, that a pagebreak has been encountered and possibly a
// new page has been set. It does not save the state or perform other
// expensive operations. However, it updates the 'isPagebreakEncountered'
// flag, which will be active until the input-feed received a new event.
// Log.debug("PageTime " + (currentPageAge - lastPageAge));
lastPageAge = System.currentTimeMillis();
final boolean repeat = pageBox.isOpen() || pageBreak.isOverflow();
if (repeat)
{
// pageBox.setAllVerticalBreaks(pageBreak.getAllBreaks());
// First clean all boxes that have been marked as finished. This reduces the overall complexity of the
// pagebox and improves performance on huge reports.
cleanFlowBoxesStep.compute(pageBox);
final long l = cleanPaginatedBoxesStep.compute(pageBox);
if (l > 0)
{
// Log.debug ("Apply shift afterwards " + l);
final InstanceID shiftNode = cleanPaginatedBoxesStep.getShiftNode();
applyPageShiftValuesStep.compute(pageBox, l, shiftNode);
debugPrint(pageBox);
}
pageBox.setPageOffset(nextOffset);
if (pageBreak.isNextPageContainsContent())
{
if (layoutPagebreakHandler != null)
{
layoutPagebreakHandler.pageStarted();
}
return true;
}
// No need to try again, we know that the result will not change, as the next page is
// empty. (We already tested it.)
pageStartPending = true;
return false;
}
else
{
outputProcessor.processingFinished();
pageBox.setPageOffset(nextOffset);
return false;
}
}
else if (outputProcessor instanceof IterativeOutputProcessor &&
outputProcessor.getMetaData().isFeatureSupported(OutputProcessorFeature.ITERATIVE_RENDERING))
{
processIncrementalUpdate(performOutput);
// final IterativeOutputProcessor io = (IterativeOutputProcessor) outputProcessor;
// io.processIterativeContent(pageBox, performOutput);
// cleanFlowBoxesStep.compute(pageBox);