Examples of KnuthElement

org.apache.fop.layoutmgr.KnuthElement
This is the super class for KnuthBox, KnuthGlue and KnuthPenalty. It stores information common to all sub classes, and the methods to get it: the width, a Position and a boolean marking KnuthElements used for some special feature (for example, the additional elements used to represent a space when text alignment is right, left or center).

Examples of org.apache.fop.layoutmgr.KnuthElement


        //log.debug(" LILM.getChanged> body");
        // body
        // "unwrap" the Positions stored in the elements
        ListIterator oldListIterator = oldList.listIterator();
        KnuthElement oldElement = null;
        while (oldListIterator.hasNext()) {
            oldElement = (KnuthElement)oldListIterator.next();
            Position innerPosition = ((NonLeafPosition) 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));
            }
        }


        LinkedList returnedList = body.getChangedKnuthElements(oldList, alignment);
        // "wrap" the Position inside each element
        LinkedList tempList = returnedList;
        KnuthElement tempElement;
        returnedList = new LinkedList();
        ListIterator listIter = tempList.listIterator();
        while (listIter.hasNext()) {
            tempElement = (KnuthElement)listIter.next();
            tempElement.setPosition(new NonLeafPosition(this, tempElement.getPosition()));
            returnedList.add(tempElement);
        }


        return returnedList;
    }

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Examples of org.apache.fop.layoutmgr.KnuthElement

                nextIsBox = ((KnuthElement) iter.next()).isBox();
            }
            int len = 0;
            if (((KnuthElement) iter.previous()).isBox()) {
                while (iter.nextIndex() < endIndex) {
                    KnuthElement el = (KnuthElement) iter.next();
                    if (el.isBox() || el.isGlue()) {
                        len += el.getW();
                    }
                }
                len += ActiveCell.getElementContentLength((KnuthElement) iter.next());
            }
            return len;

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Examples of org.apache.fop.layoutmgr.KnuthElement

                + getMaxRemainingHeight(fullHeights, partialHeights) 
                - totalHeight;
            
            //Additional penalty height from penalties in the source lists
            int additionalPenaltyHeight = 0;
            KnuthElement endEl = (KnuthElement)elementLists[0].get(end[0]);
            if (endEl instanceof KnuthPenalty) {
                additionalPenaltyHeight = ((KnuthPenalty)endEl).getW();
            }
            endEl = (KnuthElement)elementLists[1].get(end[1]);
            if (endEl instanceof KnuthPenalty) {

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Examples of org.apache.fop.layoutmgr.KnuthElement

        // get next possible sequence for label and body
        int seqCount = 0;
        for (int i = 0; i < start.length; i++) {
            while (end[i] + 1 < elementLists[i].size()) {
                end[i]++;
                KnuthElement el = (KnuthElement)elementLists[i].get(end[i]);
                if (el.isPenalty()) {
                    if (el.getP() < KnuthElement.INFINITE) {
                        //First legal break point
                        break;
                    }
                } else if (el.isGlue()) {
                    if (end[i] > 0) {
                        KnuthElement prev = (KnuthElement)elementLists[i].get(end[i] - 1);
                        if (prev.isBox()) {
                            //Second legal break point
                            break;
                        }
                    }
                    partialHeights[i] += el.getW();

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Examples of org.apache.fop.layoutmgr.KnuthElement


        //log.debug(" LILM.getChanged> body");
        // body
        // "unwrap" the Positions stored in the elements
        ListIterator oldListIterator = oldList.listIterator();
        KnuthElement oldElement = null;
        while (oldListIterator.hasNext()) {
            oldElement = (KnuthElement)oldListIterator.next();
            Position innerPosition = ((NonLeafPosition) 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));
            }
        }


        LinkedList returnedList = body.getChangedKnuthElements(oldList, alignment);
        // "wrap" the Position inside each element
        LinkedList tempList = returnedList;
        KnuthElement tempElement;
        returnedList = new LinkedList();
        ListIterator listIter = tempList.listIterator();
        while (listIter.hasNext()) {
            tempElement = (KnuthElement)listIter.next();
            tempElement.setPosition(new NonLeafPosition(this, tempElement.getPosition()));
            returnedList.add(tempElement);
        }


        return returnedList;
    }

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Examples of org.apache.fop.layoutmgr.KnuthElement

    /** {@inheritDoc} */
    public List addALetterSpaceTo(List oldList) {
        // old list contains only a box, or the sequence: box penalty glue box


        ListIterator oldListIterator = oldList.listIterator();
        KnuthElement element = null;
        // "unwrap" the Position stored in each element of oldList
        while (oldListIterator.hasNext()) {
            element = (KnuthElement) oldListIterator.next();
            element.setPosition(((NonLeafPosition)element.getPosition()).getPosition());
        }


        // The last element may not have a layout manager (its position == null);
        // this may happen if it is a padding box; see bug 39571.
        InlineLevelLayoutManager LM = 
            (InlineLevelLayoutManager) element.getLayoutManager();
        if (LM != null) {
            oldList = LM.addALetterSpaceTo(oldList);
        }
        // "wrap" again the Position stored in each element of oldList
        oldListIterator = oldList.listIterator();
        while (oldListIterator.hasNext()) {
            element = (KnuthElement) oldListIterator.next();
            element.setPosition(notifyPos(new NonLeafPosition(this, element.getPosition())));
        }


        return oldList;
    }

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Examples of org.apache.fop.layoutmgr.KnuthElement

     *
     * @param oldList the elements representing the word space
     */
    public void removeWordSpace(List oldList) {
        ListIterator oldListIterator = oldList.listIterator();
        KnuthElement element = null;
        // "unwrap" the Position stored in each element of oldList
        while (oldListIterator.hasNext()) {
            element = (KnuthElement) oldListIterator.next();
            element.setPosition(((NonLeafPosition)element.getPosition()).getPosition());
        }


        ((InlineLevelLayoutManager)
                   element.getLayoutManager()).removeWordSpace(oldList);


    }

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Examples of org.apache.fop.layoutmgr.KnuthElement


    /** {@inheritDoc} */
    public boolean applyChanges(List oldList) {
        // "unwrap" the Positions stored in the elements
        ListIterator oldListIterator = oldList.listIterator();
        KnuthElement oldElement;
        while (oldListIterator.hasNext()) {
            oldElement = (KnuthElement) oldListIterator.next();
            oldElement.setPosition
                (((NonLeafPosition) oldElement.getPosition()).getPosition());
        }
        // reset the iterator
        oldListIterator = oldList.listIterator();


        InlineLevelLayoutManager prevLM = null;
        InlineLevelLayoutManager currLM;
        int fromIndex = 0;


        boolean bSomethingChanged = false;
        while (oldListIterator.hasNext()) {
            oldElement = (KnuthElement) oldListIterator.next();
            currLM = (InlineLevelLayoutManager) oldElement.getLayoutManager();
            // initialize prevLM
            if (prevLM == null) {
                prevLM = currLM;
            }


            if (currLM != prevLM || !oldListIterator.hasNext()) {
                if (prevLM == this || currLM == this) {
                    prevLM = currLM;
                } else if (oldListIterator.hasNext()) {
                    bSomethingChanged
                        = prevLM.applyChanges(oldList.subList(fromIndex
                                                              , oldListIterator.previousIndex()))
                        || bSomethingChanged;
                    prevLM = currLM;
                    fromIndex = oldListIterator.previousIndex();
                } else if (currLM == prevLM) {
                    bSomethingChanged
                        = prevLM.applyChanges(oldList.subList(fromIndex, oldList.size()))
                            || bSomethingChanged;
                } else {
                    bSomethingChanged
                        = prevLM.applyChanges(oldList.subList(fromIndex
                                                              , oldListIterator.previousIndex()))
                            || bSomethingChanged;
                    if (currLM != null) {
                        bSomethingChanged
                            = currLM.applyChanges(oldList.subList(oldListIterator.previousIndex()
                                                                  , oldList.size()))
                            || bSomethingChanged;
                    }
                }
            }
        }


        // "wrap" again the Positions stored in the elements
        oldListIterator = oldList.listIterator();
        while (oldListIterator.hasNext()) {
            oldElement = (KnuthElement) oldListIterator.next();
            oldElement.setPosition
                (notifyPos(new NonLeafPosition(this, oldElement.getPosition())));
        }
        return bSomethingChanged;
    }

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Examples of org.apache.fop.layoutmgr.KnuthElement

     * {@inheritDoc} 
     */
    public LinkedList getChangedKnuthElements(List oldList, int alignment) {
        // "unwrap" the Positions stored in the elements
        ListIterator oldListIterator = oldList.listIterator();
        KnuthElement oldElement;
        while (oldListIterator.hasNext()) {
            oldElement = (KnuthElement) oldListIterator.next();
            oldElement.setPosition
                (((NonLeafPosition) oldElement.getPosition()).getPosition());
        }
        // reset the iterator
        oldListIterator = oldList.listIterator();


        KnuthElement returnedElement;
        LinkedList returnedList = new LinkedList();
        LinkedList returnList = new LinkedList();
        InlineLevelLayoutManager prevLM = null;
        InlineLevelLayoutManager currLM;
        int fromIndex = 0;


        while (oldListIterator.hasNext()) {
            oldElement = (KnuthElement) oldListIterator.next();
            currLM = (InlineLevelLayoutManager) oldElement.getLayoutManager();
            if (prevLM == null) {
                prevLM = currLM;
            }


            if (currLM != prevLM || !oldListIterator.hasNext()) {
                if (oldListIterator.hasNext()) {
                    returnedList.addAll
                        (prevLM.getChangedKnuthElements
                         (oldList.subList(fromIndex,
                                          oldListIterator.previousIndex()),
                          /*flaggedPenalty,*/ alignment));
                    prevLM = currLM;
                    fromIndex = oldListIterator.previousIndex();
                } else if (currLM == prevLM) {
                    returnedList.addAll
                        (prevLM.getChangedKnuthElements
                         (oldList.subList(fromIndex, oldList.size()),
                          /*flaggedPenalty,*/ alignment));
                } else {
                    returnedList.addAll
                        (prevLM.getChangedKnuthElements
                         (oldList.subList(fromIndex,
                                          oldListIterator.previousIndex()),
                          /*flaggedPenalty,*/ alignment));
                    if (currLM != null) {
                        returnedList.addAll
                            (currLM.getChangedKnuthElements
                             (oldList.subList(oldListIterator.previousIndex(),
                                              oldList.size()),
                              /*flaggedPenalty,*/ alignment));
                    }
                }
            }
        }


        // "wrap" the Position stored in each element of returnedList
        ListIterator listIter = returnedList.listIterator();
        while (listIter.hasNext()) {
            returnedElement = (KnuthElement) listIter.next();
            returnedElement.setPosition
                (notifyPos(new NonLeafPosition(this, returnedElement.getPosition())));
            returnList.add(returnedElement);
        }
        return returnList;
    }

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Examples of org.apache.fop.layoutmgr.KnuthElement

        /**
         * @return true if the sequence contains a box
         */
        public boolean containsBox() {
            for (int i = 0; i < this.size(); i++) {
                KnuthElement el = (KnuthElement)this.get(i);
                if (el.isBox()) {
                    return true;
                }
            }
            return false;
        }

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