Package org.apache.fop.layoutmgr

Examples of org.apache.fop.layoutmgr.Position

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         * "unwrap" the positions and put the child positions in a new list.
         * The positionList must contain one area-generating position,
         * which creates one line area.
         */
        List positionList = new ArrayList(1);
        Position innerPosition;
        innerPosition = ((NonLeafPosition) pos).getPosition();
        positionList.add(innerPosition);

        // do we have the last LM?
        LayoutManager lastLM = null;
        if (isLastPosition) {
            lastLM = innerPosition.getLM();
        }
       
        LineArea lineArea = new LineArea();
        setCurrentArea(lineArea);
        LayoutContext lc = new LayoutContext(0);
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        RowPainter painter = new RowPainter(this, layoutContext);

        List tablePositions = new ArrayList();
        List headerElements = null;
        List footerElements = null;
        Position firstPos = null;
        Position lastPos = null;
        Position lastCheckPos = null;
        while (parentIter.hasNext()) {
            Position pos = (Position)parentIter.next();
            if (pos instanceof SpaceHandlingBreakPosition) {
                //This position has only been needed before addAreas was called, now we need the
                //original one created by the layout manager.
                pos = ((SpaceHandlingBreakPosition)pos).getOriginalBreakPosition();
            }
            if (pos == null) {
                continue;
            }
            if (firstPos == null) {
                firstPos = pos;
            }
            lastPos = pos;
            if (pos.getIndex() >= 0) {
                lastCheckPos = pos;
            }
            if (pos instanceof TableHeaderFooterPosition) {
                TableHeaderFooterPosition thfpos = (TableHeaderFooterPosition)pos;
                //these positions need to be unpacked
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    private void addHeaderFooterAreas(List elements, TableBody part, RowPainter painter,
            boolean lastOnPage) {
        List lst = new ArrayList(elements.size());
        for (Iterator iter = new KnuthPossPosIter(elements); iter.hasNext();) {
            Position pos = (Position) iter.next();
            /*
             * Unlike for the body the Positions associated to the glues generated by
             * TableStepper haven't been removed yet.
             */
            if (pos instanceof TableContentPosition) {
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        LayoutManager childLM = null;
        LayoutContext lc = new LayoutContext(0);
        LayoutManager firstLM = null;
        LayoutManager lastLM = null;
        Position firstPos = null;
        Position lastPos = null;

        // "unwrap" the NonLeafPositions stored in parentIter
        // and put them in a new list;
        LinkedList positionList = new LinkedList();
        Position pos;
        while (parentIter.hasNext()) {
            pos = (Position)parentIter.next();
            if (pos == null) {
                continue;
            }
            if (pos.getIndex() >= 0) {
                if (firstPos == null) {
                    firstPos = pos;
                }
                lastPos = pos;
            }
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        LayoutManager childLM;
        LayoutContext lc = new LayoutContext(0);
        LayoutManager firstLM = null;
        LayoutManager lastLM = null;
        Position firstPos = null;
        Position lastPos = null;

        // "unwrap" the NonLeafPositions stored in parentIter
        // and put them in a new list;
        LinkedList positionList = new LinkedList();
        Position pos;
        while (parentIter.hasNext()) {
            pos = (Position)parentIter.next();
            if (pos.getIndex() >= 0) {
                if (firstPos == null) {
                    firstPos = pos;
                }
                lastPos = pos;
            }
            if (pos instanceof NonLeafPosition
                    && (pos.getPosition() != null)
                    && pos.getPosition().getLM() != this) {
                // pos was created by a child of this ListBlockLM
                positionList.add(pos.getPosition());
                lastLM = pos.getPosition().getLM();
                if (firstLM == null) {
                    firstLM = lastLM;
                }
            }
        }
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        // "unwrap" the Positions stored in the elements
        ListIterator oldListIterator = oldList.listIterator();
        KnuthElement oldElement;
        while (oldListIterator.hasNext()) {
            oldElement = (KnuthElement)oldListIterator.next();
            Position innerPosition = oldElement.getPosition().getPosition();
            //log.debug(" BLM> unwrapping: " + (oldElement.isBox()
            //  ? "box    " : (oldElement.isGlue() ? "glue   " : "penalty"))
            //  + " creato da " + oldElement.getLayoutManager().getClass().getName());
            //log.debug(" BLM> unwrapping:         "
            //  + oldElement.getPosition().getClass().getName());
            if (innerPosition != null) {
                // oldElement was created by a descendant of this BlockLM
                oldElement.setPosition(innerPosition);
            } else {
                // thisElement was created by this BlockLM
                // modify its position in order to recognize it was not created
                // by a child
                oldElement.setPosition(new Position(this));
            }
        }

        List returnedList = body.getChangedKnuthElements(oldList, alignment);
        // "wrap" the Position inside each element
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        getParentArea(null);

        addId();

        LayoutContext lc = new LayoutContext(0);
        Position firstPos = null;
        Position lastPos = null;

        // "unwrap" the NonLeafPositions stored in parentIter
        LinkedList positionList = new LinkedList();
        Position pos;
        while (parentIter.hasNext()) {
            pos = (Position) parentIter.next();
            if (pos.getIndex() >= 0) {
                if (firstPos == null) {
                    firstPos = pos;
                }
                lastPos = pos;
            }
            if (pos instanceof NonLeafPosition && pos.getPosition() != null) {
                // pos contains a ListItemPosition created by this ListBlockLM
                positionList.add(pos.getPosition());
            }
        }

        addMarkersToPage(true, isFirst(firstPos), isLast(lastPos));
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        for (int p = 0; p < knuthParagraphs.size(); p++) {
            // penalty between paragraphs
            if (p > 0) {
                Keep keep = getKeepTogether();
                returnList.add(new BreakElement(
                            new Position(this),
                            keep.getPenalty(),
                            keep.getContext(),
                            context));
            }

            LineLayoutPossibilities llPoss = lineLayoutsList[p];
            KnuthSequence seq = (KnuthSequence) knuthParagraphs.get(p);

            if (!seq.isInlineSequence()) {
                List targetList = new LinkedList();
                ListIterator listIter = seq.listIterator();
                while (listIter.hasNext()) {
                    ListElement tempElement;
                    tempElement = (ListElement) listIter.next();
                    if (tempElement.getLayoutManager() != this) {
                        tempElement.setPosition(notifyPos(new NonLeafPosition(this,
                                tempElement.getPosition())));
                    }
                    targetList.add(tempElement);
                }
                returnList.addAll(targetList);
            } else if (seq.isInlineSequence() && alignment == EN_JUSTIFY) {
                /* justified vertical alignment (not in the XSL FO recommendation):
                   create a multi-layout sequence whose elements will contain
                   a conventional Position */
                Position returnPosition = new LeafPosition(this, p);
                createElements(returnList, llPoss, returnPosition);
            } else {
                /* "normal" vertical alignment: create a sequence whose boxes
                   represent effective lines, and contain LineBreakPositions */
                int startIndex = 0;
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            for (int i = 0; i < llPoss.getChosenLineCount(); i++) {
                if (!((BlockLevelLayoutManager) parentLayoutManager).mustKeepTogether()
                    && i >= fobj.getOrphans()
                    && i <= llPoss.getChosenLineCount() - fobj.getWidows()) {
                    // null penalty allowing a page break between lines
                    returnList.add(new KnuthPenalty(0, 0, false, new Position(this), false));
                }
                LineBreakPosition lbp = (LineBreakPosition) llPoss.getChosenPosition(i);
                //log.debug("LLM.getChangedKnuthElements> lineWidth= " + lbp.lineWidth + " difference= " + lbp.difference);
                //log.debug("                             shrink= " + lbp.availableShrink + " stretch= " + lbp.availableStretch);
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     * @param context the context for adding areas
     */
    public void addAreas(PositionIterator parentIter,
                         LayoutContext context) {
        while (parentIter.hasNext()) {
            Position pos = (Position) parentIter.next();
            boolean isLastPosition = !parentIter.hasNext();
            if (pos instanceof LineBreakPosition) {
                addInlineArea(context, (LineBreakPosition) pos, isLastPosition);
            } else if ((pos instanceof NonLeafPosition) && pos.generatesAreas()) {
                addBlockArea(context, pos, isLastPosition);
            } else {
                /*
                 * pos was the Position inside a penalty item, nothing to do;
                 * or Pos does not generate an area,
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Related Classes of org.apache.fop.layoutmgr.Position

  • org.apache.fop.layoutmgr.inline.FootnoteLayoutManager
  • org.apache.fop.layoutmgr.inline.InlineLayoutManager
  • org.apache.fop.layoutmgr.inline.InlineStackingLayoutManager
  • org.apache.fop.layoutmgr.inline.LineLayoutManager
  • org.apache.fop.layoutmgr.inline.TextLayoutManager
  • org.apache.fop.layoutmgr.list.ListBlockLayoutManager
  • org.apache.fop.layoutmgr.list.ListItemContentLayoutManager
  • org.apache.fop.layoutmgr.list.ListItemLayoutManager
  • org.apache.fop.layoutmgr.table.TableCellLayoutManager
  • org.apache.fop.layoutmgr.table.TableContentLayoutManager
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