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

            areaInfo.addToAreaIPD(letterSpaceIPD);
            if (TextLayoutManager.BREAK_CHARS.indexOf(foText.charAt(tempStart - 1)) >= 0) {
                // 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,
                        auxiliaryPosition, false));
                oldListIterator.add(new KnuthGlue(letterSpaceIPD, auxiliaryPosition, false));
            } else if (letterSpaceIPD.isStiff()) {
                // constant letter space: replace the box
                oldListIterator.set(new KnuthInlineBox(areaInfo.areaIPD.getOpt(),

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

        case EN_CENTER:
            // centered text:
            baseList.add(makeZeroWidthPenalty(KnuthElement.INFINITE));
            baseList.add(new KnuthGlue(lineEndBAP, 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                    auxiliaryPosition, true));
            baseList.add(new KnuthPenalty(hyphIPD, unflagged
                    ? TextLayoutManager.SOFT_HYPHEN_PENALTY
                            : KnuthPenalty.FLAGGED_PENALTY, !unflagged, auxiliaryPosition, false));
            baseList.add(new KnuthGlue(-(lineEndBAP + lineStartBAP),
                    -6 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                    auxiliaryPosition, false));
            baseList.add(makeAuxiliaryZeroWidthBox());
            baseList.add(makeZeroWidthPenalty(KnuthElement.INFINITE));
            baseList.add(new KnuthGlue(lineStartBAP, 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH,
                    0, auxiliaryPosition, true));
            break;


        case EN_START: // fall through
        case EN_END:
            // left- or right-aligned text:
            if (lineStartBAP != 0 || lineEndBAP != 0) {
                baseList.add(makeZeroWidthPenalty(KnuthElement.INFINITE));
                baseList.add(new KnuthGlue(lineEndBAP,
                        3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                        auxiliaryPosition, false));
                baseList.add(new KnuthPenalty(widthIfBreakOccurs,
                        unflagged ? TextLayoutManager.SOFT_HYPHEN_PENALTY
                                : KnuthPenalty.FLAGGED_PENALTY, !unflagged,
                                auxiliaryPosition, false));
                baseList.add(new KnuthGlue(widthIfNoBreakOccurs.getOpt()
                        - (lineStartBAP + lineEndBAP),
                        -3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                        auxiliaryPosition, false));
                baseList.add(makeAuxiliaryZeroWidthBox());
                baseList.add(makeZeroWidthPenalty(KnuthElement.INFINITE));
                baseList.add(new KnuthGlue(lineStartBAP, 0, 0, auxiliaryPosition, false));
            } else {
                baseList.add(makeZeroWidthPenalty(KnuthElement.INFINITE));
                baseList.add(new KnuthGlue(0, 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                        auxiliaryPosition, false));
                baseList.add(new KnuthPenalty(widthIfBreakOccurs,
                        unflagged ? TextLayoutManager.SOFT_HYPHEN_PENALTY
                                : KnuthPenalty.FLAGGED_PENALTY, !unflagged,
                                auxiliaryPosition, false));
                baseList.add(new KnuthGlue(widthIfNoBreakOccurs.getOpt(),
                        -3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
                        auxiliaryPosition, false));
            }
            break;


        default:
            // justified text, or last line justified:
            // just a flagged penalty
            if (lineStartBAP != 0 || lineEndBAP != 0) {
                baseList.add(makeZeroWidthPenalty(KnuthElement.INFINITE));
                baseList.add(new KnuthGlue(lineEndBAP, 0, 0, auxiliaryPosition, false));
                baseList.add(new KnuthPenalty(widthIfBreakOccurs,
                        unflagged ? TextLayoutManager.SOFT_HYPHEN_PENALTY
                                : KnuthPenalty.FLAGGED_PENALTY, !unflagged,
                                auxiliaryPosition, false));
                // extra elements representing a letter space that is suppressed
                // if a break occurs
                if (widthIfNoBreakOccurs.isNonZero()) {
                    baseList.add(new KnuthGlue(widthIfNoBreakOccurs.getOpt()
                            - (lineStartBAP + lineEndBAP),
                            widthIfNoBreakOccurs.getStretch(),
                            widthIfNoBreakOccurs.getShrink(),
                            auxiliaryPosition, false));
                } else {
                    baseList.add(new KnuthGlue(-(lineStartBAP + lineEndBAP), 0, 0,
                            auxiliaryPosition, false));
                }
                baseList.add(makeAuxiliaryZeroWidthBox());
                baseList.add(makeZeroWidthPenalty(KnuthElement.INFINITE));
                baseList.add(new KnuthGlue(lineStartBAP, 0, 0,
                        auxiliaryPosition, false));
            } else {
                baseList.add(new KnuthPenalty(widthIfBreakOccurs,
                        unflagged ? TextLayoutManager.SOFT_HYPHEN_PENALTY
                                : KnuthPenalty.FLAGGED_PENALTY, !unflagged,
                                auxiliaryPosition, false));
                // extra elements representing a letter space that is suppressed
                // if a break occurs

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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.getWidth()) {
                            fail("Expected w=" + w
                                    + " at position " + pos
                                    + " but got: " + knuthEl.getWidth());
                        }
                    }
                    if (domEl.getAttribute("p").length() > 0) {
                        if ("<0".equals(domEl.getAttribute("p"))) {
                            if (knuthEl.getPenalty() >= 0) {
                                fail("Expected p<0"
                                        + " at position " + pos
                                        + " but got: " + knuthEl.getPenalty());
                            }
                        } else if (">0".equals(domEl.getAttribute("p"))) {
                            if (knuthEl.getPenalty() <= 0) {
                                fail("Expected p>0"
                                        + " at position " + pos
                                        + " but got: " + knuthEl.getPenalty());
                            }
                        } 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.getPenalty()) {
                                fail("Expected p=" + p
                                        + " at position " + pos
                                        + " but got: " + knuthEl.getPenalty());
                            }
                        }
                    }
                    if ("true".equals(domEl.getAttribute("flagged"))) {
                        if (!pen.isPenaltyFlagged()) {
                            fail("Expected flagged penalty"
                                    + " at position " + pos);
                        }
                    } else if ("false".equals(domEl.getAttribute("flagged"))) {
                        if (pen.isPenaltyFlagged()) {
                            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

     * @throws Exception if the test fails
     */
    public void testRemoveElementPenalty1() throws Exception {
        LinkedList lst = new LinkedList();
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 0, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 200, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 0, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, null, false));
        lst.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false));
        lst.add(new KnuthPenalty(0, -KnuthElement.INFINITE, false, null, false));


        boolean res = ElementListUtils.removeLegalBreaks(lst, 9000);


        assertFalse(res);

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthGlue(0, 0, 0, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthGlue(0, 0, 0, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, null, false));
        lst.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false));
        lst.add(new KnuthPenalty(0, -KnuthElement.INFINITE, false, null, false));


        boolean res = ElementListUtils.removeLegalBreaks(lst, 9000);


        assertFalse(res);

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

     * @throws Exception if the test fails
     */
    public void testRemoveElementFromEndPenalty1() throws Exception {
        LinkedList lst = new LinkedList();
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 0, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 200, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 0, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, null, false));
        lst.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false));
        lst.add(new KnuthPenalty(0, -KnuthElement.INFINITE, false, null, false));


        boolean res = ElementListUtils.removeLegalBreaksFromEnd(lst, 9000);


        assertFalse(res);

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Examples of org.apache.fop.layoutmgr.KnuthPenalty

     * @throws Exception if the test fails
     */
    public void testRemoveElementFromEndPenalty2() throws Exception {
        LinkedList lst = new LinkedList();
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 0, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 200, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthGlue(0, 0, 0, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, null, false));
        lst.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false));
        lst.add(new KnuthPenalty(0, -KnuthElement.INFINITE, false, null, false));


        boolean res = ElementListUtils.removeLegalBreaksFromEnd(lst, 9000);


        assertFalse(res);

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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

     */
    @Test
    public void testRemoveElementPenalty1() throws Exception {
        LinkedList lst = new LinkedList();
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 0, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 200, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, 0, false, null, false));
        lst.add(new KnuthBox(4000, null, false));
        lst.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, null, false));
        lst.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false));
        lst.add(new KnuthPenalty(0, -KnuthElement.INFINITE, false, null, false));


        boolean res = ElementListUtils.removeLegalBreaks(lst, 9000);


        assertFalse(res);

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