Examples of KnuthPenalty

org.apache.fop.layoutmgr.KnuthPenalty
An instance of this class represents information about a feasible breaking point; it does not represent any piece of content. A KnuthPenalty is a feasible breaking point unless its value is infinity; a KnuthPenalty whose value is -infinity represents a forced break. A KnuthPenalty is suppressed, and its width is ignored, if it is not a chosen breaking point; for example, a KnuthPenalty representing a hyphenation point has a width (the "-" width), which must be ignored if that point is not chosen as a breaking point. Besides the inherited methods and attributes, this class has two more attributes and the methods used to get them: the penalty value, which is a kind of "aesthetic cost" (the higher the value, the more unsightly the breaking point), and a boolean that marks KnuthPenalties which should not be chosen as breaking points for consecutive lines.

Examples of org.apache.fop.layoutmgr.KnuthPenalty

            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;
                } else {
                    // add only the element representing the forced break
                    this.add(new KnuthPenalty(lineFiller.opt, -KnuthElement.INFINITE,
                                              false, null, false));
                    ignoreAtEnd = 1;
                }
                return this;
            } else {

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

                    if (!(knuthEl instanceof KnuthPenalty)) {
                        fail("Expected KnuthPenalty "
                                + " at position " + pos 
                                + " but got: " + knuthEl.getClass().getName());
                    }
                    KnuthPenalty pen = (KnuthPenalty)knuthEl;
                    if (domEl.getAttribute("w").length() > 0) {
                        int w = Integer.parseInt(domEl.getAttribute("w"));
                        if (w != knuthEl.getW()) {
                            fail("Expected w=" + w 
                                    + " at position " + pos 
                                    + " but got: " + knuthEl.getW());
                        }
                    }
                    if (domEl.getAttribute("p").length() > 0) {
                        if ("<0".equals(domEl.getAttribute("p"))) {
                            if (knuthEl.getP() >= 0) {
                                fail("Expected p<0" 
                                        + " at position " + pos 
                                        + " but got: " + knuthEl.getP());
                            }
                        } else if (">0".equals(domEl.getAttribute("p"))) {
                            if (knuthEl.getP() <= 0) {
                                fail("Expected p>0" 
                                        + " at position " + pos 
                                        + " but got: " + knuthEl.getP());
                            }
                        } else {
                            int p;
                            if ("INF".equalsIgnoreCase(domEl.getAttribute("p"))) {
                                p = KnuthPenalty.INFINITE;
                            } else if ("INFINITE".equalsIgnoreCase(domEl.getAttribute("p"))) {
                                p = KnuthPenalty.INFINITE;
                            } else if ("-INF".equalsIgnoreCase(domEl.getAttribute("p"))) {
                                p = -KnuthPenalty.INFINITE;
                            } else if ("-INFINITE".equalsIgnoreCase(domEl.getAttribute("p"))) {
                                p = -KnuthPenalty.INFINITE;
                            } else {
                                p = Integer.parseInt(domEl.getAttribute("p"));
                            }
                            if (p != knuthEl.getP()) {
                                fail("Expected p=" + p 
                                        + " at position " + pos 
                                        + " but got: " + knuthEl.getP());
                            }
                        }
                    }
                    if ("true".equals(domEl.getAttribute("flagged"))) {
                        if (!pen.isFlagged()) {
                            fail("Expected flagged penalty"
                                    + " at position " + pos); 
                        }
                    } else if ("false".equals(domEl.getAttribute("flagged"))) {
                        if (pen.isFlagged()) {
                            fail("Expected non-flagged penalty"
                                    + " at position " + pos);
                        }
                    }
                    if ("true".equals(domEl.getAttribute("aux"))) {
                        if (!pen.isAuxiliary()) {
                            fail("Expected auxiliary penalty"
                                    + " at position " + pos); 
                        }
                    } else if ("false".equals(domEl.getAttribute("aux"))) {
                        if (pen.isAuxiliary()) {
                            fail("Expected non-auxiliary penalty"
                                    + " at position " + pos); 
                        }
                    }
                } else if ("glue".equals(domEl.getLocalName())) {

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Examples of org.apache.fop.layoutmgr.KnuthPenalty


    private KnuthSequence getKnuthSequence1() {
        KnuthSequence seq = new BlockKnuthSequence();
        for (int i = 0; i < 5; i++) {
            seq.add(new KnuthBox(0, null, true));
            seq.add(new KnuthPenalty(0, KnuthPenalty.INFINITE, false, null, true));
            seq.add(new KnuthGlue(5000, 0, 0, null, true));
            seq.add(new KnuthBox(10000, null, false));
            if (i < 4) {
                seq.add(new KnuthPenalty(0, 0, false, null, false));
                seq.add(new KnuthGlue(-5000, 0, 0, null, true));
            }
        }
        
        seq.add(new KnuthPenalty(0, KnuthPenalty.INFINITE, false, null, false));
        seq.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false));
        seq.add(new KnuthPenalty(0, -KnuthPenalty.INFINITE, false, null, false));
        ElementListObserver.observe(seq, "test", null);
        return seq;
    }

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

        nLastLines = 3;
        */


        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));
        }

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

            for (int i = 0; i < llPoss.getChosenLineCount(); i++) {
                if (!((BlockLevelLayoutManager) parentLM).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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Examples of org.apache.fop.layoutmgr.KnuthPenalty

                prevIsBox = false;
                if (el.getP() < KnuthElement.INFINITE) {
                    // First legal break point
                    breakFound = true;
                    afterNextStep.penaltyLength = el.getW();
                    KnuthPenalty p = (KnuthPenalty) el;
                    if (p.isForcedBreak()) {
                        afterNextStep.breakClass = p.getBreakClass();
                    }
                }
            } else if (el.isGlue()) {
                if (prevIsBox) {
                    // Second legal break point

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

        lastLines = 3;
        */


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


        //log.debug("first=" + firstLines + " inner=" + innerLines
        //                   + " optional=" + optionalLines + " eliminable=" + eliminableLines
        //                   + " last=" + lastLines
        //                   + " (condOpt=" + conditionalOptionalLines + " condEl=" + conditionalEliminableLines + ")");


        // creation of the elements:
        // first group of lines
        list.add(new KnuthBox(firstLines * constantLineHeight, elementPosition,
                              (lastLines == 0
                               && conditionalOptionalLines == 0
                               && conditionalEliminableLines == 0)));
        if (conditionalOptionalLines > 0
            || conditionalEliminableLines > 0) {
            list.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, elementPosition, false));
            list.add(new KnuthGlue(0, conditionalOptionalLines * constantLineHeight,
                                   conditionalEliminableLines * constantLineHeight,
                                   Adjustment.LINE_NUMBER_ADJUSTMENT, elementPosition, false));
            list.add(new KnuthBox(0, elementPosition, (lastLines == 0)));
        }


        // optional lines
        for (int i = 0; i < optionalLines; 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, constantLineHeight, 0,
                                   Adjustment.LINE_NUMBER_ADJUSTMENT, elementPosition, false));
            list.add(new KnuthBox(0, elementPosition, false));
        }


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

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

            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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Examples of org.apache.fop.layoutmgr.KnuthPenalty

            assert !returnList.isEmpty();
        }
        final KnuthElement lastItem = (KnuthElement) ListUtil
                .getLast(returnList);
        if (lastItem.isForcedBreak()) {
            KnuthPenalty p = (KnuthPenalty) lastItem;
            primaryGridUnit.setBreakAfter(p.getBreakClass());
            p.setPenalty(0);
        }


        setFinished(true);
        return returnList;
    }

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

        letterAdjustArray = new MinOptMax[node.length() + 1];
        areaInfos = new ArrayList();
    }


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

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