Examples of org.apache.fop.layoutmgr.KnuthGlue

org.apache.fop.layoutmgr.KnuthGlue
An instance of this class represents a piece of content with adjustable width: for example a space between words of justified text. A KnuthGlue is a feasible breaking point only if it immediately follows a KnuthBox. The represented piece of content is suppressed if either the KnuthGlue is a chosen breaking point or there isn't any KnuthBox between the previous breaking point and the KnuthGlue itself. So, an unsuppressible piece of content with adjustable width, for example a leader or a word with adjustable letter space, cannot be represented by a single KnuthGlue; it can be represented using the sequence: KnuthBox(width = 0) KnuthPenalty(width = 0, penalty = infinity) KnuthGlue(...) KnuthBox(width = 0) where the infinity penalty avoids choosing the KnuthGlue as a breaking point and the 0-width KnuthBoxes prevent suppression. Besides the inherited methods and attributes, this class has two attributes used to store the stretchability (difference between max and opt width) and the shrinkability (difference between opt and min width), and the methods to get these values.

                        // which forces a line break
                        lastPar.removeLast();
                        if (!lastPar.containsBox()) {
                            //only a forced linefeed on this line 
                            //-> compensate with an auxiliary glue
                            lastPar.add(new KnuthGlue(iLineWidth, 0, iLineWidth, null, true));
                        }
                        lastPar.endParagraph();
                        ElementListObserver.observe(lastPar, "line", null);
                        lastPar = null;
                        if (log.isTraceEnabled()) {

View Full Code Here

        */


        if (nLastLines != 0
            && (nConditionalOptionalLines > 0 || nConditionalEliminableLines > 0)) {
            breaker.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, elementPosition, false));
            breaker.add(new KnuthGlue(0, -nConditionalOptionalLines * constantLineHeight,
                                        -nConditionalEliminableLines * constantLineHeight,
                                        LINE_NUMBER_ADJUSTMENT, elementPosition, false));
            breaker.add(new KnuthPenalty(nConditionalOptionalLines * constantLineHeight,
                                           0, false, elementPosition, false));
            breaker.add(new KnuthGlue(0, nConditionalOptionalLines * constantLineHeight,
                                        nConditionalEliminableLines * constantLineHeight,
                                        LINE_NUMBER_ADJUSTMENT, elementPosition, false));
        } else if (nLastLines != 0) {
            breaker.add(new KnuthPenalty(0, 0, false, elementPosition, false));
        }


        //log.debug("first=" + nFirstLines + " inner=" + nInnerLines
        //                   + " optional=" + nOptionalLines + " eliminable=" + nEliminableLines
        //                   + " last=" + nLastLines
        //                   + " (condOpt=" + nConditionalOptionalLines + " condEl=" + nConditionalEliminableLines + ")");


        // creation of the elements:
        // first group of lines
        list.add(new KnuthBox(nFirstLines * constantLineHeight, elementPosition,
                              (nLastLines == 0
                               && nConditionalOptionalLines == 0
                               && nConditionalEliminableLines == 0 ? true : false)));
        if (nConditionalOptionalLines > 0
            || nConditionalEliminableLines > 0) {
            list.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, elementPosition, false));
            list.add(new KnuthGlue(0, nConditionalOptionalLines * constantLineHeight,
                                   nConditionalEliminableLines * constantLineHeight,
                                   LINE_NUMBER_ADJUSTMENT, elementPosition, false));
            list.add(new KnuthBox(0, elementPosition,
                                  (nLastLines == 0 ? true : false)));
        }


        // optional lines
        for (int i = 0; i < nOptionalLines; i++) {
            list.addAll(breaker);
            list.add(new KnuthBox(0, elementPosition, false));
            list.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, elementPosition, false));
            list.add(new KnuthGlue(0, 1 * constantLineHeight, 0,
                                   LINE_NUMBER_ADJUSTMENT, elementPosition, false));
            list.add(new KnuthBox(0, elementPosition, false));
        }


        // eliminable lines
        for (int i = 0; i < nEliminableLines; i++) {
            list.addAll(breaker);
            list.add(new KnuthBox(1 * constantLineHeight, elementPosition, false));
            list.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, elementPosition, false));
            list.add(new KnuthGlue(0, 0, 1 * constantLineHeight,
                                   LINE_NUMBER_ADJUSTMENT, elementPosition, false));
            list.add(new KnuthBox(0, elementPosition, false));
        }


        // inner lines

View Full Code Here

                }
                p = -KnuthPenalty.INFINITE; //Overrides any keeps (see 4.8 in XSL 1.0)
            }
            returnList.add(new BreakElement(penaltyPos, effPenaltyLen, p, breakClass, context));
            if (penaltyOrGlueLen < 0) {
                returnList.add(new KnuthGlue(-penaltyOrGlueLen, 0, 0, new Position(null), true));
            }


            if (log.isDebugEnabled()) {
                log.debug("step=" + step + " (+" + increase + ")"
                        + " box=" + boxLen

View Full Code Here

                                            layoutManager.iLineWidth); 
            }


            // add auxiliary elements at the beginning of the paragraph
            if (textAlignment == EN_CENTER && textAlignmentLast != EN_JUSTIFY) {
                this.add(new KnuthGlue(0, 3 * DEFAULT_SPACE_WIDTH, 0,
                                       null, false));
                ignoreAtStart++;
            }


            // add the element representing text indentation

View Full Code Here


        public KnuthSequence endSequence() {
            if (this.size() > ignoreAtStart) {
                if (textAlignment == EN_CENTER
                    && textAlignmentLast != EN_JUSTIFY) {
                    this.add(new KnuthGlue(0, 3 * DEFAULT_SPACE_WIDTH, 0,
                                           null, false));
                    this.add(new KnuthPenalty(lineFiller.opt, -KnuthElement.INFINITE,
                                              false, null, false));
                    ignoreAtEnd = 2;
                } else if (textAlignmentLast != EN_JUSTIFY) {
                    // add the elements representing the space
                    // at the end of the last line
                    // and the forced break
                    this.add(new KnuthPenalty(0, KnuthElement.INFINITE, 
                                              false, null, false));
                    this.add(new KnuthGlue(0, 
                            lineFiller.max - lineFiller.opt, 
                            lineFiller.opt - lineFiller.min, null, false));
                    this.add(new KnuthPenalty(lineFiller.opt, -KnuthElement.INFINITE,
                                              false, null, false));
                    ignoreAtEnd = 3;

View Full Code Here

                    ai = null;
                }
                if (breakAction == LineBreakStatus.EXPLICIT_BREAK) {
                    if (lineEndBAP != 0) {
                        sequence.add
                            (new KnuthGlue(lineEndBAP, 0, 0,
                                           new LeafPosition(this, -1), true));
                    }
                    sequence.endSequence();
                    sequence = new InlineKnuthSequence();
                    returnList.add(sequence);
                }
            }
            
            if ((ch == CharUtilities.SPACE 
                    && foText.getWhitespaceTreatment() == Constants.EN_PRESERVE) 
                    || ch == CharUtilities.NBSPACE) {
                // preserved space or non-breaking space:
                // create the AreaInfo object
                ai = new AreaInfo(iNextStart, (short) (iNextStart + 1),
                        (short) 1, (short) 0,
                        wordSpaceIPD, false, true, breakOpportunity);
                iThisStart = (short) (iNextStart + 1);
            } else if (CharUtilities.isFixedWidthSpace(ch) || CharUtilities.isZeroWidthSpace(ch)) {
                // create the AreaInfo object
                MinOptMax ipd = new MinOptMax(font.getCharWidth(ch));
                ai = new AreaInfo(iNextStart, (short) (iNextStart + 1),
                        (short) 0, (short) 0,
                        ipd, false, true, breakOpportunity); 
                iThisStart = (short) (iNextStart + 1);
            } else if (ch == NEWLINE) {
                // linefeed; this can happen when linefeed-treatment="preserve"
                iThisStart = (short) (iNextStart + 1);
            }
            inWord = !isSpace(ch) && ch != NEWLINE;
            inWhitespace = ch == CharUtilities.SPACE && foText.getWhitespaceTreatment() != Constants.EN_PRESERVE;
            iNextStart++;
        } // end of while
        
        // Process any last elements
        if (inWord) {
            int lastIndex = iNextStart;
            if (textArray[iNextStart - 1] == CharUtilities.SOFT_HYPHEN) {
                lastIndex--;
            }
            int wordLength = lastIndex - iThisStart;
            boolean kerning = font.hasKerning();
            MinOptMax wordIPD = new MinOptMax(0);
            for (int i = iThisStart; i < lastIndex; i++) {
                char c = textArray[i];


                //character width
                int charWidth = font.getCharWidth(c);
                wordIPD.add(charWidth);


                //kerning
                if (kerning) {
                    int kern = 0;
                    if (i > iThisStart) {
                        char previous = textArray[i - 1];
                        kern = font.getKernValue(previous, c) * font.getFontSize() / 1000;
                    } else if (prevAi != null && !prevAi.isSpace) {
                        char previous = textArray[prevAi.iBreakIndex - 1];
                        kern = font.getKernValue(previous, c) * font.getFontSize() / 1000;
                    }
                    if (kern != 0) {
                        //log.info("Kerning between " + previous + " and " + c + ": " + kern);
                        addToLetterAdjust(i, kern);
                        wordIPD.add(kern);
                    }
                }
            }
            int iLetterSpaces = wordLength - 1;
            wordIPD.add(MinOptMax.multiply(letterSpaceIPD, iLetterSpaces));


            // create the AreaInfo object
            ai = new AreaInfo(iThisStart, (short)lastIndex, (short) 0,
                    (short) iLetterSpaces,
                    wordIPD, false, false, false);
            vecAreaInfo.add(ai);
            iTempStart = iNextStart;


            // create the elements
            sequence.addAll(createElementsForAWordFragment(alignment, ai,
                    vecAreaInfo.size() - 1, letterSpaceIPD));
            ai = null;
        } else if (inWhitespace) {
            ai = new AreaInfo(iThisStart, (short) (iNextStart),
                    (short) (iNextStart - iThisStart), (short) 0,
                    MinOptMax.multiply(wordSpaceIPD, iNextStart - iThisStart),
                    false, true, true); 
            vecAreaInfo.add(ai);


            // create the elements
            sequence.addAll
                (createElementsForASpace(alignment, ai, vecAreaInfo.size() - 1));
            ai = null;
        } else if (ai != null) {
            vecAreaInfo.add(ai);
            ai.breakOppAfter = ch == CharUtilities.ZERO_WIDTH_SPACE;
            sequence.addAll
                (createElementsForASpace(alignment, ai, vecAreaInfo.size() - 1));
            ai = null;
        } else if (ch == NEWLINE) {
            if (lineEndBAP != 0) {
                sequence.add
                    (new KnuthGlue(lineEndBAP, 0, 0,
                                   new LeafPosition(this, -1), true));
            }
            sequence.endSequence();
            sequence = new InlineKnuthSequence();
            returnList.add(sequence);

View Full Code Here

            // the last character could be used as a line break
            // append new elements to oldList
            oldListIterator = oldList.listIterator(oldList.size());
            oldListIterator.add(new KnuthPenalty(0, KnuthPenalty.FLAGGED_PENALTY, true,
                                                 new LeafPosition(this, -1), false));
            oldListIterator.add(new KnuthGlue(letterSpaceIPD.opt,
                                       letterSpaceIPD.max - letterSpaceIPD.opt,
                                       letterSpaceIPD.opt - letterSpaceIPD.min,
                                       new LeafPosition(this, -1), false));
        } else if (letterSpaceIPD.min == letterSpaceIPD.max) {
            // constant letter space: replace the box
            oldListIterator.set(new KnuthInlineBox(ai.ipdArea.opt, alignmentContext, pos, false));
        } else {
            // adjustable letter space: replace the glue
            oldListIterator.next(); // this would return the penalty element
            oldListIterator.next(); // this would return the glue element
            oldListIterator.set(new KnuthGlue(ai.iLScount * letterSpaceIPD.opt,
                                              ai.iLScount * (letterSpaceIPD.max - letterSpaceIPD.opt),
                                              ai.iLScount * (letterSpaceIPD.opt - letterSpaceIPD.min),
                                              new LeafPosition(this, -1), true));
        }
        return oldList;

View Full Code Here

                // when starting a line
                spaceElements.add(new KnuthInlineBox(0, null,
                        notifyPos(new LeafPosition(this, -1)), true));
                spaceElements.add(new KnuthPenalty(0, KnuthElement.INFINITE,
                        false, new LeafPosition(this, -1), false));
                spaceElements.add(new KnuthGlue(ai.ipdArea.opt, ai.ipdArea.max - ai.ipdArea.opt, 
                        ai.ipdArea.opt - ai.ipdArea.min, mainPosition, false));
            } else {
                // the space does not need to stretch or shrink, and must be
                // preserved when starting a line
                spaceElements.add(new KnuthInlineBox(ai.ipdArea.opt, null,
                        mainPosition, true));
            }
        } else {
            if (textArray[ai.iStartIndex] != CharUtilities.SPACE
                    || foText.getWhitespaceTreatment() == Constants.EN_PRESERVE) {
                // a breaking space that needs to be preserved
                switch (alignment) {
                case EN_CENTER:
                    // centered text:
                    // if the second element is chosen as a line break these elements 
                    // add a constant amount of stretch at the end of a line and at the
                    // beginning of the next one, otherwise they don't add any stretch
                    spaceElements.add(new KnuthGlue(lineEndBAP,
                            3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            new LeafPosition(this, -1), false));
                    spaceElements
                            .add(new KnuthPenalty(
                                    0,
                                    0, false,
                                    new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthGlue(
                            - (lineStartBAP + lineEndBAP), -6
                            * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthInlineBox(0, null,
                            notifyPos(new LeafPosition(this, -1)), false));
                    spaceElements.add(new KnuthPenalty(0, KnuthElement.INFINITE,
                            false, new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthGlue(ai.ipdArea.opt + lineStartBAP,
                            3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            mainPosition, false));
                    break;


                case EN_START: // fall through
                case EN_END:
                    // left- or right-aligned text:
                    // if the second element is chosen as a line break these elements 
                    // add a constant amount of stretch at the end of a line, otherwise
                    // they don't add any stretch
                    spaceElements.add(new KnuthGlue(lineEndBAP,
                            3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthPenalty(0, 0, false,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthGlue(
                            - (lineStartBAP + lineEndBAP), -3
                            * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthInlineBox(0, null,
                            notifyPos(new LeafPosition(this, -1)), false));
                    spaceElements.add(new KnuthPenalty(0,
                            KnuthElement.INFINITE, false, new LeafPosition(
                                    this, -1), false));
                    spaceElements.add(new KnuthGlue(ai.ipdArea.opt + lineStartBAP, 0, 0,
                            mainPosition, false));
                    break;


                case EN_JUSTIFY:
                    // justified text:
                    // the stretch and shrink depends on the space width
                    spaceElements.add(new KnuthGlue(lineEndBAP, 0, 0,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthPenalty(0, 0, false,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthGlue(
                            - (lineStartBAP + lineEndBAP), ai.ipdArea.max
                            - ai.ipdArea.opt, ai.ipdArea.opt - ai.ipdArea.min,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthInlineBox(0, null,
                            notifyPos(new LeafPosition(this, -1)), false));
                    spaceElements.add(new KnuthPenalty(0,
                            KnuthElement.INFINITE, false, new LeafPosition(
                                    this, -1), false));
                    spaceElements.add(new KnuthGlue(lineStartBAP + ai.ipdArea.opt, 0, 0,
                            mainPosition, false));
                    break;


                default:
                    // last line justified, the other lines unjustified:
                    // use only the space stretch
                    spaceElements.add(new KnuthGlue(lineEndBAP, 0, 0,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthPenalty(0, 0, false,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthGlue(
                            - (lineStartBAP + lineEndBAP), ai.ipdArea.max
                            - ai.ipdArea.opt, 0,
                            new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthInlineBox(0, null,
                            notifyPos(new LeafPosition(this, -1)), false));
                    spaceElements.add(new KnuthPenalty(0,
                            KnuthElement.INFINITE, false, new LeafPosition(
                                    this, -1), false));
                    spaceElements.add(new KnuthGlue(lineStartBAP + ai.ipdArea.opt, 0, 0,
                            mainPosition, false));
                } 
            } else {
                // a (possible block) of breaking spaces
                switch (alignment) {
                case EN_CENTER:
                    // centered text:
                    // if the second element is chosen as a line break these elements 
                    // add a constant amount of stretch at the end of a line and at the
                    // beginning of the next one, otherwise they don't add any stretch
                    spaceElements.add(new KnuthGlue(lineEndBAP,
                            3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            new LeafPosition(this, -1), false));
                    spaceElements
                            .add(new KnuthPenalty(
                                    0, 0, false,
                                    new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthGlue(ai.ipdArea.opt
                            - (lineStartBAP + lineEndBAP), -6
                            * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            mainPosition, false));
                    spaceElements.add(new KnuthInlineBox(0, null,
                            notifyPos(new LeafPosition(this, -1)), false));
                    spaceElements.add(new KnuthPenalty(0, KnuthElement.INFINITE,
                            false, new LeafPosition(this, -1), false));
                    spaceElements.add(new KnuthGlue(lineStartBAP,
                            3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            new LeafPosition(this, -1), false));
                    break;


                case EN_START: // fall through
                case EN_END:
                    // left- or right-aligned text:
                    // if the second element is chosen as a line break these elements 
                    // add a constant amount of stretch at the end of a line, otherwise
                    // they don't add any stretch
                    if (lineStartBAP != 0 || lineEndBAP != 0) {
                        spaceElements.add(new KnuthGlue(lineEndBAP,
                                3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                                new LeafPosition(this, -1), false));
                        spaceElements.add(new KnuthPenalty(0, 0, false,
                                new LeafPosition(this, -1), false));
                        spaceElements.add(new KnuthGlue(ai.ipdArea.opt
                                - (lineStartBAP + lineEndBAP), -3
                                * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                                mainPosition, false));
                        spaceElements.add(new KnuthInlineBox(0, null,
                                notifyPos(new LeafPosition(this, -1)), false));
                        spaceElements.add(new KnuthPenalty(0,
                                KnuthElement.INFINITE, false, new LeafPosition(
                                        this, -1), false));
                        spaceElements.add(new KnuthGlue(lineStartBAP, 0, 0,
                                new LeafPosition(this, -1), false));
                    } else {
                        spaceElements.add(new KnuthGlue(0,
                                3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                                new LeafPosition(this, -1), false));
                        spaceElements.add(new KnuthPenalty(0, 0, false,
                                new LeafPosition(this, -1), false));
                        spaceElements.add(new KnuthGlue(ai.ipdArea.opt, -3
                                * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                                mainPosition, false));
                    }
                    break;


                case EN_JUSTIFY:
                    // justified text:
                    // the stretch and shrink depends on the space width
                    if (lineStartBAP != 0 || lineEndBAP != 0) {
                        spaceElements.add(new KnuthGlue(lineEndBAP, 0, 0,
                                new LeafPosition(this, -1), false));
                        spaceElements.add(new KnuthPenalty(0, 0, false,
                                new LeafPosition(this, -1), false));
                        spaceElements.add(new KnuthGlue(
                                ai.ipdArea.opt - (lineStartBAP + lineEndBAP),
                                ai.ipdArea.max - ai.ipdArea.opt,
                                ai.ipdArea.opt - ai.ipdArea.min,
                                mainPosition, false));
                        spaceElements.add(new KnuthInlineBox(0, null,
                                notifyPos(new LeafPosition(this, -1)), false));
                        spaceElements.add(new KnuthPenalty(0,
                                KnuthElement.INFINITE, false, new LeafPosition(
                                        this, -1), false));
                        spaceElements.add(new KnuthGlue(lineStartBAP, 0, 0,
                                new LeafPosition(this, -1), false));
                    } else {
                        spaceElements.add(new KnuthGlue(ai.ipdArea.opt,
                                ai.ipdArea.max - ai.ipdArea.opt,
                                ai.ipdArea.opt - ai.ipdArea.min,
                                mainPosition, false));
                    }
                    break;


                default:
                    // last line justified, the other lines unjustified:
                    // use only the space stretch
                    if (lineStartBAP != 0 || lineEndBAP != 0) {
                        spaceElements.add(new KnuthGlue(lineEndBAP, 0, 0,
                                new LeafPosition(this, -1), false));
                        spaceElements.add(new KnuthPenalty(0, 0, false,
                                new LeafPosition(this, -1), false));
                        spaceElements.add(new KnuthGlue(
                                ai.ipdArea.opt - (lineStartBAP + lineEndBAP),
                                ai.ipdArea.max - ai.ipdArea.opt,
                                0, mainPosition, false));
                        spaceElements.add(new KnuthInlineBox(0, null,
                                notifyPos(new LeafPosition(this, -1)), false));
                        spaceElements.add(new KnuthPenalty(0,
                                KnuthElement.INFINITE, false, new LeafPosition(
                                        this, -1), false));
                        spaceElements.add(new KnuthGlue(lineStartBAP, 0, 0,
                                new LeafPosition(this, -1), false));
                    } else {
                        spaceElements.add(new KnuthGlue(ai.ipdArea.opt,
                                ai.ipdArea.max - ai.ipdArea.opt, 0,
                                mainPosition, false));
                    }
                }
            }

View Full Code Here

                        notifyPos(mainPosition), false));
            wordElements.add
                (new KnuthPenalty(0, KnuthElement.INFINITE, false,
                        new LeafPosition(this, -1), true));
            wordElements.add
                (new KnuthGlue(unsuppressibleLetterSpaces * letterSpaceWidth.opt,
                        unsuppressibleLetterSpaces * (letterSpaceWidth.max - letterSpaceWidth.opt),
                        unsuppressibleLetterSpaces * (letterSpaceWidth.opt - letterSpaceWidth.min),
                        new LeafPosition(this, -1), true));
            wordElements.add
                (new KnuthInlineBox(0, null,

View Full Code Here

            */
            hyphenElements.add
                (new KnuthPenalty(0, KnuthElement.INFINITE, false,
                        new LeafPosition(this, -1), true));
            hyphenElements.add
                (new KnuthGlue(lineEndBAP, 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                               new LeafPosition(this, -1), true));
            hyphenElements.add
                (new KnuthPenalty(hyphIPD,
                        unflagged ? SOFT_HYPHEN_PENALTY : KnuthPenalty.FLAGGED_PENALTY, !unflagged,
                        new LeafPosition(this, -1), false));
            hyphenElements.add
                (new KnuthGlue(-(lineEndBAP + lineStartBAP),
                        -6 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                        new LeafPosition(this, -1), false));
            hyphenElements.add
                (new KnuthInlineBox(0, null,
                                    notifyPos(new LeafPosition(this, -1)), true));
            hyphenElements.add
               (new KnuthPenalty(0, KnuthElement.INFINITE, false,
                                 new LeafPosition(this, -1), true));
            hyphenElements.add
                (new KnuthGlue(lineStartBAP, 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                               new LeafPosition(this, -1), true));
            break;
            
        case EN_START  : // fall through
        case EN_END    :
            // left- or right-aligned text:
            /*
            hyphenElements.add
                (new KnuthGlue(0, 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                        new LeafPosition(this, -1), false));
            hyphenElements.add
                (new KnuthPenalty(widthIfBreakOccurs,
                        KnuthPenalty.FLAGGED_PENALTY, true,
                        new LeafPosition(this, -1), false));
             hyphenElements.add
                (new KnuthGlue(widthIfNoBreakOccurs.opt,
                        - 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                        new LeafPosition(this, -1), false));
            */
            if (lineStartBAP != 0 || lineEndBAP != 0) {
                hyphenElements.add
                    (new KnuthPenalty(0, KnuthElement.INFINITE, false,
                            new LeafPosition(this, -1), true));
                hyphenElements.add
                    (new KnuthGlue(lineEndBAP, 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                                   new LeafPosition(this, -1), false));
                hyphenElements.add
                    (new KnuthPenalty(widthIfBreakOccurs,
                            unflagged ? SOFT_HYPHEN_PENALTY : KnuthPenalty.FLAGGED_PENALTY, !unflagged,
                            new LeafPosition(this, -1), false));
                hyphenElements.add
                    (new KnuthGlue(widthIfNoBreakOccurs.opt - (lineStartBAP + lineEndBAP),
                                   -3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                                   new LeafPosition(this, -1), false));
                hyphenElements.add
                    (new KnuthInlineBox(0, null,
                                        notifyPos(new LeafPosition(this, -1)), false));
                hyphenElements.add
                   (new KnuthPenalty(0, KnuthElement.INFINITE, false,
                                     new LeafPosition(this, -1), false));
                hyphenElements.add
                    (new KnuthGlue(lineStartBAP, 0, 0,
                                   new LeafPosition(this, -1), false));
            } else {
                hyphenElements.add
                    (new KnuthPenalty(0, KnuthElement.INFINITE, false,
                            new LeafPosition(this, -1), true));
                hyphenElements.add
                    (new KnuthGlue(0, 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            new LeafPosition(this, -1), false));
                hyphenElements.add
                    (new KnuthPenalty(widthIfBreakOccurs,
                            unflagged ? SOFT_HYPHEN_PENALTY : KnuthPenalty.FLAGGED_PENALTY, !unflagged,
                            new LeafPosition(this, -1), false));
                hyphenElements.add
                    (new KnuthGlue(widthIfNoBreakOccurs.opt,
                            -3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                            new LeafPosition(this, -1), false));
            }
            break;
            
        default:
            // justified text, or last line justified:
            // just a flagged penalty
            /*
            hyphenElements.add
                (new KnuthPenalty(widthIfBreakOccurs,
                        KnuthPenalty.FLAGGED_PENALTY, true,
                        new LeafPosition(this, -1), false));
            */
            if (lineStartBAP != 0 || lineEndBAP != 0) {
                hyphenElements.add
                    (new KnuthPenalty(0, KnuthElement.INFINITE, false,
                            new LeafPosition(this, -1), true));


                hyphenElements.add
                    (new KnuthGlue(lineEndBAP, 0, 0,
                                   new LeafPosition(this, -1), false));
                hyphenElements.add
                    (new KnuthPenalty(widthIfBreakOccurs,
                            unflagged ? SOFT_HYPHEN_PENALTY : KnuthPenalty.FLAGGED_PENALTY, !unflagged,
                            new LeafPosition(this, -1), false));
                // extra elements representing a letter space that is suppressed
                // if a break occurs
                if (widthIfNoBreakOccurs.min != 0
                    || widthIfNoBreakOccurs.max != 0) {
                    hyphenElements.add
                        (new KnuthGlue(widthIfNoBreakOccurs.opt - (lineStartBAP + lineEndBAP),
                                widthIfNoBreakOccurs.max - widthIfNoBreakOccurs.opt,
                                widthIfNoBreakOccurs.opt - widthIfNoBreakOccurs.min,
                                new LeafPosition(this, -1), false));
                } else {
                    hyphenElements.add
                        (new KnuthGlue(-(lineStartBAP + lineEndBAP), 0, 0,
                                       new LeafPosition(this, -1), false));
                }
                hyphenElements.add
                    (new KnuthInlineBox(0, null,
                                        notifyPos(new LeafPosition(this, -1)), false));
                hyphenElements.add
                    (new KnuthPenalty(0, KnuthElement.INFINITE, false,
                                      new LeafPosition(this, -1), false));
                hyphenElements.add
                    (new KnuthGlue(lineStartBAP, 0, 0,
                                   new LeafPosition(this, -1), false));
            } else {
                hyphenElements.add
                    (new KnuthPenalty(widthIfBreakOccurs,
                            unflagged ? SOFT_HYPHEN_PENALTY : KnuthPenalty.FLAGGED_PENALTY, !unflagged,
                            new LeafPosition(this, -1), false));
                // extra elements representing a letter space that is suppressed
                // if a break occurs
                if (widthIfNoBreakOccurs.min != 0
                    || widthIfNoBreakOccurs.max != 0) {
                    hyphenElements.add
                        (new KnuthGlue(widthIfNoBreakOccurs.opt,
                                widthIfNoBreakOccurs.max - widthIfNoBreakOccurs.opt,
                                widthIfNoBreakOccurs.opt - widthIfNoBreakOccurs.min,
                                new LeafPosition(this, -1), false));
                }
            }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

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

org.apache.fop.KnuthAlgorithmTestCase

org.apache.fop.layoutengine.ElementListCheck

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.LineLayoutManager$Paragraph

org.apache.fop.layoutmgr.inline.TextLayoutManager

org.apache.fop.layoutmgr.table.TableStepper

org.apache.fop.util.ElementListUtilsTestCase

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.