Examples of org.apache.fop.layoutmgr.LeafPosition

org.apache.fop.layoutmgr.LeafPosition

        if (letterSpaceIPD.min == letterSpaceIPD.max
            || areaInfo.iLScount == 0) {
            // constant letter space, or no letter space
            returnList.add(new KnuthInlineBox(areaInfo.ipdArea.opt,
                                        areaInfo.alignmentContext,
                                        notifyPos(new LeafPosition(this, 0)), false));
            if (areaInfo.bHyphenated) {
                returnList.add
                    (new KnuthPenalty(hyphIPD, KnuthPenalty.FLAGGED_PENALTY, true,
                                      new LeafPosition(this, -1), false));
            }
        } else {
            // adjustable letter space
            returnList.add
                (new KnuthInlineBox(areaInfo.ipdArea.opt
                              - areaInfo.iLScount * letterSpaceIPD.opt,
                              areaInfo.alignmentContext,
                              notifyPos(new LeafPosition(this, 0)), false));
            returnList.add(new KnuthPenalty(0, KnuthElement.INFINITE, false,
                                            new LeafPosition(this, -1), true));
            returnList.add
                (new KnuthGlue(areaInfo.iLScount * letterSpaceIPD.opt,
                               areaInfo.iLScount * letterSpaceIPD.max - letterSpaceIPD.opt,
                               areaInfo.iLScount * letterSpaceIPD.opt - letterSpaceIPD.min,
                               new LeafPosition(this, -1), true));
            returnList.add(new KnuthInlineBox(0, null,
                                        notifyPos(new LeafPosition(this, -1)), true));
            if (areaInfo.bHyphenated) {
                returnList.add
                    (new KnuthPenalty(hyphIPD, KnuthPenalty.FLAGGED_PENALTY, true,
                                      new LeafPosition(this, -1), false));
            }
        }


        addKnuthElementsForBorderPaddingEnd(returnList);

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                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 */
                Position returnPosition = new LeafPosition(this, p);
                int startIndex = 0;
                for (int i = 0;
                        i < llPoss.getChosenLineCount();
                        i++) {
                    if (!((BlockLevelLayoutManager) parentLM).mustKeepTogether()

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    /**
     * {@inheritDoc} 
     */
    public int negotiateBPDAdjustment(int adj, KnuthElement lastElement) {
        LeafPosition pos = (LeafPosition)lastElement.getPosition();
        int totalAdj = adj;
        //if (lastElement.isPenalty()) {
        //    totalAdj += lastElement.getW();
        //}
        //int lineNumberDifference = (int)((double) totalAdj / constantLineHeight);
        int lineNumberDifference = (int) Math.round((double) totalAdj / constantLineHeight
                                                    + (adj > 0 ? - 0.4 : 0.4));
        //log.debug("   LLM> variazione calcolata = " + ((double) totalAdj / constantLineHeight) + " variazione applicata = " + lineNumberDifference);
        LineLayoutPossibilities llPoss;
        llPoss = (LineLayoutPossibilities) lineLayoutsList.get(pos.getLeafPos());
        lineNumberDifference = llPoss.applyLineCountAdjustment(lineNumberDifference);
        return lineNumberDifference * constantLineHeight;
    }

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                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;
                for (int i = 0;
                        i < llPoss.getChosenLineCount();
                        i++) {
                    if (returnList.size() > 0
                            && i > 0 //if i==0 break generated above already
                            && i >= fobj.getOrphans()
                            && i <= llPoss.getChosenLineCount() - fobj.getWidows()) {
                        // penalty allowing a page break between lines
                        Keep keep = getKeepTogether();
                        returnList.add(new BreakElement(
                                new LeafPosition(this, p, endIndex),
                                    keep.getPenalty(),
                                    keep.getContext(),
                                    context));
                    }
                    endIndex = ((LineBreakPosition) llPoss.getChosenPosition(i)).getLeafPos();

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        return Keep.KEEP_AUTO;
    }


    /** {@inheritDoc} */
    public int negotiateBPDAdjustment(int adj, KnuthElement lastElement) {
        LeafPosition pos = (LeafPosition)lastElement.getPosition();
        //if (lastElement.isPenalty()) {
        //    totalAdj += lastElement.getWidth();
        //}
        //int lineNumberDifference = (int)((double) totalAdj / constantLineHeight);
        int lineNumberDifference = (int) Math.round((double) adj / constantLineHeight
                                                    + (adj > 0 ? - 0.4 : 0.4));
        //log.debug("   LLM> variazione calcolata = " + ((double) totalAdj / constantLineHeight) + " variazione applicata = " + lineNumberDifference);
        LineLayoutPossibilities llPoss;
        llPoss = lineLayoutsList[pos.getLeafPos()];
        lineNumberDifference = llPoss.applyLineCountAdjustment(lineNumberDifference);
        return lineNumberDifference * constantLineHeight;
    }

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         * SpaceResolver.SpaceHandlingBreakPosition constructors unwraps all
         * NonLeafPositions, which can lead to a NPE when a break in a table occurs at a
         * page with different ipd.
         */
        if (auxiliaryPosition == null) {
            auxiliaryPosition = new LeafPosition(this, 0);
        }
        return auxiliaryPosition;
    }

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    private KnuthPenalty makeZeroWidthPenalty(int penaltyValue) {
        return new KnuthPenalty(0, penaltyValue, false, auxiliaryPosition, true);
    }


    private KnuthBox makeAuxiliaryZeroWidthBox() {
        return new KnuthInlineBox(0, null, notifyPos(new LeafPosition(this, -1)), true);
    }

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        /* On first area created, add any leading space.
         * Calculate word-space stretch value.
         */
        AreaInfo lastAreaInfo = null;
        while (posIter.hasNext()) {
            final LeafPosition tbpNext = (LeafPosition) posIter.next();
            if (tbpNext == null) {
                continue; //Ignore elements without Positions
            }
            if (tbpNext.getLeafPos() != -1) {
                areaInfo = (AreaInfo) areaInfos.get(tbpNext.getLeafPos());
                if (lastAreaInfo == null || areaInfo.font != lastAreaInfo.font) {
                    if (lastAreaInfo != null) {
                        addAreaInfoAreas(lastAreaInfo, wordSpaceCount,
                                letterSpaceCount, firstAreaInfoIndex,
                                lastAreaInfoIndex, realWidth, context);
                    }
                    firstAreaInfoIndex = tbpNext.getLeafPos();
                    wordSpaceCount = 0;
                    letterSpaceCount = 0;
                    realWidth = MinOptMax.ZERO;
                }
                wordSpaceCount += areaInfo.wordSpaceCount;
                letterSpaceCount += areaInfo.letterSpaceCount;
                realWidth = realWidth.plus(areaInfo.areaIPD);
                lastAreaInfoIndex = tbpNext.getLeafPos();
                lastAreaInfo = areaInfo;
            }
        }
        if (lastAreaInfo != null) {
            addAreaInfoAreas(lastAreaInfo, wordSpaceCount, letterSpaceCount, firstAreaInfoIndex,

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        // old list contains only a box, or the sequence: box penalty glue box;
        // look at the Position stored in the first element in oldList
        // which is always a box
        ListIterator oldListIterator = oldList.listIterator();
        KnuthElement knuthElement = (KnuthElement) oldListIterator.next();
        LeafPosition pos = (LeafPosition) ((KnuthBox) knuthElement).getPosition();
        int index = pos.getLeafPos();
        //element could refer to '-1' position, for non-collapsed spaces (?)
        if (index > -1) {
            AreaInfo areaInfo = getAreaInfo(index);
            areaInfo.letterSpaceCount++;
            areaInfo.addToAreaIPD(letterSpaceIPD);

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        }
    }


    private void addElementsForASpace(List baseList, int alignment, AreaInfo areaInfo,
                                      int leafValue) {
        LeafPosition mainPosition = new LeafPosition(this, leafValue);


        if (!areaInfo.breakOppAfter) {
            // a non-breaking space
            if (alignment == Constants.EN_JUSTIFY) {
                // the space can stretch and shrink, and must be preserved

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Related Classes of org.apache.fop.layoutmgr.LeafPosition

org.apache.fop.layoutmgr.inline.CharacterLayoutManager

org.apache.fop.layoutmgr.inline.LeaderLayoutManager

org.apache.fop.layoutmgr.inline.LeafNodeLayoutManager

org.apache.fop.layoutmgr.inline.LineLayoutManager

org.apache.fop.layoutmgr.inline.TextLayoutManager

org.apache.fop.layoutmgr.table.TableLayoutManager

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