Package org.apache.fop.layoutmgr

Examples of org.apache.fop.layoutmgr.KnuthPenalty

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        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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     */
    @Test
    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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     */
    @Test
    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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            // at the moment the character is supposed to have no letter spaces,
            // but returning this sequence allows us to change only one element
            // if addALetterSpaceTo() is called
            seq.add(new KnuthInlineBox(areaInfo.ipdArea.getOpt(), areaInfo.alignmentContext,
                                        notifyPos(new LeafPosition(this, 0)), false));
            seq.add(new KnuthPenalty(0, KnuthElement.INFINITE, false,
                                            new LeafPosition(this, -1), true));
            seq.add(new KnuthGlue(0, 0, 0,
                                         new LeafPosition(this, -1), true));
            seq.add(new KnuthInlineBox(0, null,
                                        notifyPos(new LeafPosition(this, -1)), true));
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            // constant letter space, or no letter space
            returnList.add(new KnuthInlineBox(areaInfo.ipdArea.getOpt(),
                                        areaInfo.alignmentContext,
                                        notifyPos(new LeafPosition(this, 0)), false));
            if (areaInfo.isHyphenated) {
                returnList.add(new KnuthPenalty(hyphIPD, KnuthPenalty.FLAGGED_PENALTY, true,
                        new LeafPosition(this, -1), false));
            }
        } else {
            // adjustable letter space
            returnList.add(new KnuthInlineBox(areaInfo.ipdArea.getOpt()
                    - areaInfo.letterSpaces * letterSpaceIPD.getOpt(), 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(letterSpaceIPD.mult(areaInfo.letterSpaces),
                    new LeafPosition(this, -1), true));
            returnList.add (
                    new KnuthInlineBox(0, null, notifyPos(new LeafPosition(this, -1)), true));
            if (areaInfo.isHyphenated) {
                returnList.add(new KnuthPenalty(hyphIPD, KnuthPenalty.FLAGGED_PENALTY, true,
                        new LeafPosition(this, -1), false));
            }
        }

        addKnuthElementsForBorderPaddingEnd(returnList);
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        if (commonBorderPaddingBackground != null) {
            int ipStart = commonBorderPaddingBackground.getBorderStartWidth(false)
                         + commonBorderPaddingBackground.getPaddingStart(false, this);
            if (ipStart > 0) {
                // Add a non breakable glue
                returnList.add(new KnuthPenalty(0, KnuthPenalty.INFINITE,
                                                false, new LeafPosition(this, -1), true));
                returnList.add(new KnuthGlue(ipStart, 0, 0, new LeafPosition(this, -1), true));
            }
        }
    }
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        if (commonBorderPaddingBackground != null) {
            int ipEnd = commonBorderPaddingBackground.getBorderEndWidth(false)
                        + commonBorderPaddingBackground.getPaddingEnd(false, this);
            if (ipEnd > 0) {
                // Add a non breakable glue
                returnList.add(new KnuthPenalty(0, KnuthPenalty.INFINITE,
                                                false, new LeafPosition(this, -1), true));
                returnList.add(new KnuthGlue(ipEnd, 0, 0, new LeafPosition(this, -1), true));
            }
        }
    }
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        letterSpaceAdjustArray = 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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            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
                // give it the unwrapped position of the replaced element
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        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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Related Classes of org.apache.fop.layoutmgr.KnuthPenalty

  • org.apache.fop.KnuthAlgorithmTestCase
  • org.apache.fop.layoutengine.ElementListCheck
  • org.apache.fop.layoutmgr.inline.CharacterLayoutManager
  • org.apache.fop.layoutmgr.inline.InlineLayoutManager
  • 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.ActiveCell
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