org.apache.fop.layoutmgr

## Class BlockStackingLayoutManager

- java.lang.Object
- - org.apache.fop.layoutmgr.AbstractBaseLayoutManager
  - - org.apache.fop.layoutmgr.AbstractLayoutManager
    - - org.apache.fop.layoutmgr.BlockStackingLayoutManager

- All Implemented Interfaces:
    PercentBaseContext, Constants, BlockLevelLayoutManager, LayoutManager
  Direct Known Subclasses:
    FlowLayoutManager, FootnoteBodyLayoutManager, ListItemContentLayoutManager, MultiCaseLayoutManager, MultiSwitchLayoutManager, SpacedBorderedPaddedBlockLayoutManager, StaticContentLayoutManager, TableAndCaptionLayoutManager, TableCaptionLayoutManager, TableCellLayoutManager

      public abstract class BlockStackingLayoutManager
      extends AbstractLayoutManager
      implements BlockLevelLayoutManager

  Base LayoutManager class for all areas which stack their child areas in the block-progression direction, such as Flow, Block, ListBlock.

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `protected static class` | `BlockStackingLayoutManager.MappingPosition` A mapping position.

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected int` | `adjustedSpaceAfter` space-after value adjusted for block-progression-unit handling
    `protected int` | `adjustedSpaceBefore` space-before value adjusted for block-progression-unit handling
    `protected int` | `bpUnit` Value of the block-progression-unit (non-standard property)
    `protected boolean` | `breakBeforeServed` Indicates whether break before has been served or not
    `protected int` | `endIndent` the effective end-indent value
    `protected boolean` | `firstVisibleMarkServed` Indicates whether the first visible mark has been returned by this LM, yet
    `protected MinOptMax` | `foSpaceAfter` see foSpaceBefore
    `protected MinOptMax` | `foSpaceBefore` Holds the (one-time use) fo:block space-before and -after properties.
    `protected BlockParent` | `parentArea` parent area
    `protected int` | `referenceIPD` Reference IPD available
    `protected int` | `startIndent` the effective start-indent value
    `protected java.util.List<KnuthElement>` | `storedList` Only used to store the original list when createUnitElements is called

    - ### Fields inherited from class org.apache.fop.layoutmgr.AbstractLayoutManager

      `childLMiter, childLMs, curChildLM, fobjIter, parentLayoutManager`

    - ### Fields inherited from class org.apache.fop.layoutmgr.AbstractBaseLayoutManager

      `fobj, generatesBlockArea, generatesReferenceArea`

    - ### Fields inherited from interface org.apache.fop.fo.Constants

      `COMPOUND_COUNT, COMPOUND_MASK, COMPOUND_SHIFT, CP_BLOCK_PROGRESSION_DIRECTION, CP_CONDITIONALITY, CP_INLINE_PROGRESSION_DIRECTION, CP_LENGTH, CP_MAXIMUM, CP_MINIMUM, CP_OPTIMUM, CP_PRECEDENCE, CP_WITHIN_COLUMN, CP_WITHIN_LINE, CP_WITHIN_PAGE, EN_100, EN_200, EN_300, EN_400, EN_500, EN_600, EN_700, EN_800, EN_900, EN_ABSOLUTE, EN_ABSOLUTE_COLORMETRIC, EN_AFTER, EN_AFTER_EDGE, EN_ALL, EN_ALPHABETIC, EN_ALTERNATE, EN_ALWAYS, EN_ANY, EN_AUTO, EN_AUTO_EVEN, EN_AUTO_ODD, EN_AVOID, EN_BACKSLANT, EN_BASELINE, EN_BEFORE, EN_BEFORE_EDGE, EN_BIDI_OVERRIDE, EN_BLANK, EN_BLINK, EN_BLOCK, EN_BOLDER, EN_BOTH, EN_BOTTOM, EN_BOUNDED_IN_ONE_DIMENSION, EN_BT, EN_CAPITALIZE, EN_CAPTION, EN_CENTER, EN_CENTRAL, EN_CHARACTER_BY_CHARACTER, EN_COLLAPSE, EN_COLLAPSE_WITH_PRECEDENCE, EN_COLUMN, EN_CONDENSED, EN_CONSIDER_SHIFTS, EN_DASHED, EN_DISCARD, EN_DISREGARD_SHIFTS, EN_DOCUMENT, EN_DOTS, EN_DOTTED, EN_DOUBLE, EN_EMBED, EN_END, EN_END_ON_EVEN, EN_END_ON_ODD, EN_ERROR_IF_OVERFLOW, EN_EVEN, EN_EVEN_PAGE, EN_EXPANDED, EN_EXTRA_CONDENSED, EN_EXTRA_EXPANDED, EN_FALSE, EN_FIC, EN_FIRST, EN_FIRST_INCLUDING_CARRYOVER, EN_FIRST_STARTING, EN_FIXED, EN_FONT_HEIGHT, EN_FORCE, EN_FSWP, EN_GROOVE, EN_HANGING, EN_HIDDEN, EN_HIDE, EN_ICON, EN_IDEOGRAPHIC, EN_IGNORE, EN_IGNORE_IF_AFTER_LINEFEED, EN_IGNORE_IF_BEFORE_LINEFEED, EN_IGNORE_IF_SURROUNDING_LINEFEED, EN_INDEFINITE, EN_INDENT, EN_INHERIT, EN_INSET, EN_INSIDE, EN_INTEGER_PIXELS, EN_ITALIC, EN_JUSTIFY, EN_LARGER, EN_LAST, EN_LAST_ENDING, EN_LAST_STARTING, EN_LEAVE_SEPARATE, EN_LEFT, EN_LEWP, EN_LIGHTER, EN_LINE, EN_LINE_HEIGHT, EN_LINE_THROUGH, EN_LINK, EN_LOWERCASE, EN_LR, EN_LR_TB, EN_LSWP, EN_LTR, EN_MATHEMATICAL, EN_MAX_HEIGHT, EN_MENU, EN_MERGE, EN_MESSAGE_BOX, EN_MIDDLE, EN_NARROWER, EN_NEW, EN_NO_BLINK, EN_NO_CHANGE, EN_NO_FORCE, EN_NO_LIMIT, EN_NO_LINE_THROUGH, EN_NO_LINK, EN_NO_OVERLINE, EN_NO_UNDERLINE, EN_NO_WRAP, EN_NON_UNIFORM, EN_NONE, EN_NOREPEAT, EN_NORMAL, EN_NOT_BLANK, EN_OBLIQUE, EN_ODD, EN_ODD_PAGE, EN_ONLY, EN_OUTSET, EN_OUTSIDE, EN_OVERLINE, EN_PAGE, EN_PAGE_SEQUENCE, EN_PAGINATE, EN_PERCEPTUAL, EN_PRE, EN_PRESERVE, EN_REFERENCE_AREA, EN_RELATIVE, EN_RELATIVE_COLOMETRIC, EN_REPEAT, EN_REPEATX, EN_REPEATY, EN_REPLACE, EN_RESAMPLE_ANY_METHOD, EN_RESET_SIZE, EN_REST, EN_RETAIN, EN_RIDGE, EN_RIGHT, EN_RL, EN_RL_TB, EN_RTL, EN_RULE, EN_SATURATION, EN_SCALE_DOWN_TO_FIT, EN_SCALE_TO_FIT, EN_SCALE_UP_TO_FIT, EN_SCROLL, EN_SELECT_FIRST_FITTING, EN_SEMI_CONDENSED, EN_SEMI_EXPANDED, EN_SEPARATE, EN_SHOW, EN_SMALL_CAPS, EN_SMALL_CAPTION, EN_SMALLER, EN_SOLID, EN_SPACE, EN_START, EN_STATIC, EN_STATUS_BAR, EN_SUB, EN_SUPER, EN_SUPPRESS, EN_TABLE, EN_TABLE_FRAGMENT, EN_TB, EN_TB_LR, EN_TB_RL, EN_TEXT_AFTER_EDGE, EN_TEXT_BEFORE_EDGE, EN_TEXT_BOTTOM, EN_TEXT_TOP, EN_TOP, EN_TRADITIONAL, EN_TREAT_AS_SPACE, EN_TREAT_AS_ZERO_WIDTH_SPACE, EN_TRUE, EN_ULTRA_CONDENSED, EN_ULTRA_EXPANDED, EN_UNBOUNDED, EN_UNDERLINE, EN_UNIFORM, EN_UPPERCASE, EN_USE_FONT_METRICS, EN_USE_SCRIPT, EN_USECONTENT, EN_VISIBLE, EN_WIDER, EN_WRAP, ENUM_COUNT, FO_BASIC_LINK, FO_BIDI_OVERRIDE, FO_BLOCK, FO_BLOCK_CONTAINER, FO_BOOKMARK, FO_BOOKMARK_TITLE, FO_BOOKMARK_TREE, FO_CHANGE_BAR_BEGIN, FO_CHANGE_BAR_END, FO_CHARACTER, FO_COLOR_PROFILE, FO_CONDITIONAL_PAGE_MASTER_REFERENCE, FO_DECLARATIONS, FO_EXTERNAL_GRAPHIC, FO_FLOAT, FO_FLOW, FO_FLOW_ASSIGNMENT, FO_FLOW_MAP, FO_FLOW_NAME_SPECIFIER, FO_FLOW_SOURCE_LIST, FO_FLOW_TARGET_LIST, FO_FOLIO_PREFIX, FO_FOLIO_SUFFIX, FO_FOOTNOTE, FO_FOOTNOTE_BODY, FO_INDEX_KEY_REFERENCE, FO_INDEX_PAGE_CITATION_LIST, FO_INDEX_PAGE_CITATION_LIST_SEPARATOR, FO_INDEX_PAGE_CITATION_RANGE_SEPARATOR, FO_INDEX_PAGE_NUMBER_PREFIX, FO_INDEX_PAGE_NUMBER_SUFFIX, FO_INDEX_RANGE_BEGIN, FO_INDEX_RANGE_END, FO_INITIAL_PROPERTY_SET, FO_INLINE, FO_INLINE_CONTAINER, FO_INSTREAM_FOREIGN_OBJECT, FO_LAYOUT_MASTER_SET, FO_LEADER, FO_LIST_BLOCK, FO_LIST_ITEM, FO_LIST_ITEM_BODY, FO_LIST_ITEM_LABEL, FO_MARKER, FO_MULTI_CASE, FO_MULTI_PROPERTIES, FO_MULTI_PROPERTY_SET, FO_MULTI_SWITCH, FO_MULTI_TOGGLE, FO_PAGE_NUMBER, FO_PAGE_NUMBER_CITATION, FO_PAGE_NUMBER_CITATION_LAST, FO_PAGE_SEQUENCE, FO_PAGE_SEQUENCE_MASTER, FO_PAGE_SEQUENCE_WRAPPER, FO_REGION_AFTER, FO_REGION_BEFORE, FO_REGION_BODY, FO_REGION_END, FO_REGION_NAME_SPECIFIER, FO_REGION_START, FO_REPEATABLE_PAGE_MASTER_ALTERNATIVES, FO_REPEATABLE_PAGE_MASTER_REFERENCE, FO_RETRIEVE_MARKER, FO_RETRIEVE_TABLE_MARKER, FO_ROOT, FO_SCALING_VALUE_CITATION, FO_SIMPLE_PAGE_MASTER, FO_SINGLE_PAGE_MASTER_REFERENCE, FO_STATIC_CONTENT, FO_TABLE, FO_TABLE_AND_CAPTION, FO_TABLE_BODY, FO_TABLE_CAPTION, FO_TABLE_CELL, FO_TABLE_COLUMN, FO_TABLE_FOOTER, FO_TABLE_HEADER, FO_TABLE_ROW, FO_TITLE, FO_UNKNOWN_NODE, FO_WRAPPER, FRM_OBJ_COUNT, NOT_SET, PR_ABSOLUTE_POSITION, PR_ACTIVE_STATE, PR_ALIGNMENT_ADJUST, PR_ALIGNMENT_BASELINE, PR_AUTO_RESTORE, PR_AZIMUTH, PR_BACKGROUND, PR_BACKGROUND_ATTACHMENT, PR_BACKGROUND_COLOR, PR_BACKGROUND_IMAGE, PR_BACKGROUND_POSITION, PR_BACKGROUND_POSITION_HORIZONTAL, PR_BACKGROUND_POSITION_VERTICAL, PR_BACKGROUND_REPEAT, PR_BASELINE_SHIFT, PR_BLANK_OR_NOT_BLANK, PR_BLOCK_PROGRESSION_DIMENSION, PR_BORDER, PR_BORDER_AFTER_COLOR, PR_BORDER_AFTER_PRECEDENCE, PR_BORDER_AFTER_STYLE, PR_BORDER_AFTER_WIDTH, PR_BORDER_BEFORE_COLOR, PR_BORDER_BEFORE_PRECEDENCE, PR_BORDER_BEFORE_STYLE, PR_BORDER_BEFORE_WIDTH, PR_BORDER_BOTTOM, PR_BORDER_BOTTOM_COLOR, PR_BORDER_BOTTOM_STYLE, PR_BORDER_BOTTOM_WIDTH, PR_BORDER_COLLAPSE, PR_BORDER_COLOR, PR_BORDER_END_COLOR, PR_BORDER_END_PRECEDENCE, PR_BORDER_END_STYLE, PR_BORDER_END_WIDTH, PR_BORDER_LEFT, PR_BORDER_LEFT_COLOR, PR_BORDER_LEFT_STYLE, PR_BORDER_LEFT_WIDTH, PR_BORDER_RIGHT, PR_BORDER_RIGHT_COLOR, PR_BORDER_RIGHT_STYLE, PR_BORDER_RIGHT_WIDTH, PR_BORDER_SEPARATION, PR_BORDER_SPACING, PR_BORDER_START_COLOR, PR_BORDER_START_PRECEDENCE, PR_BORDER_START_STYLE, PR_BORDER_START_WIDTH, PR_BORDER_STYLE, PR_BORDER_TOP, PR_BORDER_TOP_COLOR, PR_BORDER_TOP_STYLE, PR_BORDER_TOP_WIDTH, PR_BORDER_WIDTH, PR_BOTTOM, PR_BREAK_AFTER, PR_BREAK_BEFORE, PR_CAPTION_SIDE, PR_CASE_NAME, PR_CASE_TITLE, PR_CHANGE_BAR_CLASS, PR_CHANGE_BAR_COLOR, PR_CHANGE_BAR_OFFSET, PR_CHANGE_BAR_PLACEMENT, PR_CHANGE_BAR_STYLE, PR_CHANGE_BAR_WIDTH, PR_CHARACTER, PR_CLEAR, PR_CLIP, PR_COLOR, PR_COLOR_PROFILE_NAME, PR_COLUMN_COUNT, PR_COLUMN_GAP, PR_COLUMN_NUMBER, PR_COLUMN_WIDTH, PR_CONTENT_HEIGHT, PR_CONTENT_TYPE, PR_CONTENT_WIDTH, PR_COUNTRY, PR_CUE, PR_CUE_AFTER, PR_CUE_BEFORE, PR_DESTINATION_PLACEMENT_OFFSET, PR_DIRECTION, PR_DISPLAY_ALIGN, PR_DOMINANT_BASELINE, PR_ELEVATION, PR_EMPTY_CELLS, PR_END_INDENT, PR_ENDS_ROW, PR_EXTENT, PR_EXTERNAL_DESTINATION, PR_FLOAT, PR_FLOW_MAP_NAME, PR_FLOW_MAP_REFERENCE, PR_FLOW_NAME, PR_FLOW_NAME_REFERENCE, PR_FONT, PR_FONT_FAMILY, PR_FONT_SELECTION_STRATEGY, PR_FONT_SIZE, PR_FONT_SIZE_ADJUST, PR_FONT_STRETCH, PR_FONT_STYLE, PR_FONT_VARIANT, PR_FONT_WEIGHT, PR_FORCE_PAGE_COUNT, PR_FORMAT, PR_GLYPH_ORIENTATION_HORIZONTAL, PR_GLYPH_ORIENTATION_VERTICAL, PR_GROUPING_SEPARATOR, PR_GROUPING_SIZE, PR_HEIGHT, PR_HYPHENATE, PR_HYPHENATION_CHARACTER, PR_HYPHENATION_KEEP, PR_HYPHENATION_LADDER_COUNT, PR_HYPHENATION_PUSH_CHARACTER_COUNT, PR_HYPHENATION_REMAIN_CHARACTER_COUNT, PR_ID, PR_INDEX_CLASS, PR_INDEX_KEY, PR_INDICATE_DESTINATION, PR_INITIAL_PAGE_NUMBER, PR_INLINE_PROGRESSION_DIMENSION, PR_INTERNAL_DESTINATION, PR_INTRINSIC_SCALE_VALUE, PR_INTRUSION_DISPLACE, PR_KEEP_TOGETHER, PR_KEEP_WITH_NEXT, PR_KEEP_WITH_PREVIOUS, PR_LANGUAGE, PR_LAST_LINE_END_INDENT, PR_LEADER_ALIGNMENT, PR_LEADER_LENGTH, PR_LEADER_PATTERN, PR_LEADER_PATTERN_WIDTH, PR_LEFT, PR_LETTER_SPACING, PR_LETTER_VALUE, PR_LINE_HEIGHT, PR_LINE_HEIGHT_SHIFT_ADJUSTMENT, PR_LINE_STACKING_STRATEGY, PR_LINEFEED_TREATMENT, PR_MARGIN, PR_MARGIN_BOTTOM, PR_MARGIN_LEFT, PR_MARGIN_RIGHT, PR_MARGIN_TOP, PR_MARKER_CLASS_NAME, PR_MASTER_NAME, PR_MASTER_REFERENCE, PR_MAX_HEIGHT, PR_MAX_WIDTH, PR_MAXIMUM_REPEATS, PR_MEDIA_USAGE, PR_MERGE_PAGES_ACROSS_INDEX_KEY_REFERENCES, PR_MERGE_RANGES_ACROSS_INDEX_KEY_REFERENCES, PR_MERGE_SEQUENTIAL_PAGE_NUMBERS, PR_MIN_HEIGHT, PR_MIN_WIDTH, PR_NUMBER_COLUMNS_REPEATED, PR_NUMBER_COLUMNS_SPANNED, PR_NUMBER_ROWS_SPANNED, PR_ODD_OR_EVEN, PR_ORPHANS, PR_OVERFLOW, PR_PADDING, PR_PADDING_AFTER, PR_PADDING_BEFORE, PR_PADDING_BOTTOM, PR_PADDING_END, PR_PADDING_LEFT, PR_PADDING_RIGHT, PR_PADDING_START, PR_PADDING_TOP, PR_PAGE_BREAK_AFTER, PR_PAGE_BREAK_BEFORE, PR_PAGE_BREAK_INSIDE, PR_PAGE_CITATION_STRATEGY, PR_PAGE_HEIGHT, PR_PAGE_NUMBER_TREATMENT, PR_PAGE_POSITION, PR_PAGE_WIDTH, PR_PAUSE, PR_PAUSE_AFTER, PR_PAUSE_BEFORE, PR_PITCH, PR_PITCH_RANGE, PR_PLAY_DURING, PR_POSITION, PR_PRECEDENCE, PR_PROVISIONAL_DISTANCE_BETWEEN_STARTS, PR_PROVISIONAL_LABEL_SEPARATION, PR_REF_ID, PR_REF_INDEX_KEY, PR_REFERENCE_ORIENTATION, PR_REGION_NAME, PR_REGION_NAME_REFERENCE, PR_RELATIVE_ALIGN, PR_RELATIVE_POSITION, PR_RENDERING_INTENT, PR_RETRIEVE_BOUNDARY, PR_RETRIEVE_BOUNDARY_WITHIN_TABLE, PR_RETRIEVE_CLASS_NAME, PR_RETRIEVE_POSITION, PR_RETRIEVE_POSITION_WITHIN_TABLE, PR_RICHNESS, PR_RIGHT, PR_ROLE, PR_RULE_STYLE, PR_RULE_THICKNESS, PR_SCALING, PR_SCALING_METHOD, PR_SCORE_SPACES, PR_SCRIPT, PR_SHOW_DESTINATION, PR_SIZE, PR_SOURCE_DOCUMENT, PR_SPACE_AFTER, PR_SPACE_BEFORE, PR_SPACE_END, PR_SPACE_START, PR_SPAN, PR_SPEAK, PR_SPEAK_HEADER, PR_SPEAK_NUMERAL, PR_SPEAK_PUNCTUATION, PR_SPEECH_RATE, PR_SRC, PR_START_INDENT, PR_STARTING_STATE, PR_STARTS_ROW, PR_STRESS, PR_SUPPRESS_AT_LINE_BREAK, PR_SWITCH_TO, PR_TABLE_LAYOUT, PR_TABLE_OMIT_FOOTER_AT_BREAK, PR_TABLE_OMIT_HEADER_AT_BREAK, PR_TARGET_PRESENTATION_CONTEXT, PR_TARGET_PROCESSING_CONTEXT, PR_TARGET_STYLESHEET, PR_TEXT_ALIGN, PR_TEXT_ALIGN_LAST, PR_TEXT_ALTITUDE, PR_TEXT_DECORATION, PR_TEXT_DEPTH, PR_TEXT_INDENT, PR_TEXT_SHADOW, PR_TEXT_TRANSFORM, PR_TOP, PR_TREAT_AS_WORD_SPACE, PR_UNICODE_BIDI, PR_VERTICAL_ALIGN, PR_VISIBILITY, PR_VOICE_FAMILY, PR_VOLUME, PR_WHITE_SPACE, PR_WHITE_SPACE_COLLAPSE, PR_WHITE_SPACE_TREATMENT, PR_WIDOWS, PR_WIDTH, PR_WORD_SPACING, PR_WRAP_OPTION, PR_WRITING_MODE, PR_X_ABBREVIATION, PR_X_ALT_TEXT, PR_X_AUTO_TOGGLE, PR_X_BACKGROUND_IMAGE_HEIGHT, PR_X_BACKGROUND_IMAGE_WIDTH, PR_X_BORDER_AFTER_END_RADIUS, PR_X_BORDER_AFTER_RADIUS_END, PR_X_BORDER_AFTER_RADIUS_START, PR_X_BORDER_AFTER_START_RADIUS, PR_X_BORDER_BEFORE_END_RADIUS, PR_X_BORDER_BEFORE_RADIUS_END, PR_X_BORDER_BEFORE_RADIUS_START, PR_X_BORDER_BEFORE_START_RADIUS, PR_X_BORDER_END_RADIUS_AFTER, PR_X_BORDER_END_RADIUS_BEFORE, PR_X_BORDER_RADIUS, PR_X_BORDER_START_RADIUS_AFTER, PR_X_BORDER_START_RADIUS_BEFORE, PR_X_DISABLE_COLUMN_BALANCING, PR_X_HEADER_COLUMN, PR_X_LAYER, PR_X_NUMBER_CONVERSION_FEATURES, PR_X_ORPHAN_CONTENT_LIMIT, PR_X_WIDOW_CONTENT_LIMIT, PR_X_XML_BASE, PR_XML_LANG, PR_Z_INDEX, PROPERTY_COUNT, PROPERTY_MASK`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `BlockStackingLayoutManager(FObj node)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addBlockSpacing(double adjust, MinOptMax minoptmax)` Add a block spacer for space before and space after a block.
    `void` | `addChildArea(Area childArea)` Add the childArea to the current area.
    `protected void` | `addChildToArea(Area childArea, BlockParent parentArea)` Add the childArea to the passed area.
    `protected void` | `addFirstVisibleMarks(java.util.List<ListElement> elements, LayoutContext context, int alignment)` Checks if this LM's first "visible marks" (= borders, padding, spaces) have already been processed, and if necessary, adds corresponding elements to the specified list, and updates the given layout context accordingly.
    `protected void` | `addInBetweenBreak(java.util.List<ListElement> contentList, LayoutContext parentLC, LayoutContext childLC)` Adds a break element to the content list between individual child elements.
    `protected void` | `addKnuthElementsForBorderPaddingAfter(java.util.List returnList, boolean isLast)` Creates Knuth elements for after border padding and adds them to the return list.
    `protected void` | `addKnuthElementsForBorderPaddingBefore(java.util.List returnList, boolean isFirst)` Creates Knuth elements for before border padding and adds them to the return list.
    `protected boolean` | `addKnuthElementsForBreakAfter(java.util.List returnList, LayoutContext context)` Creates Knuth elements for break-after and adds them to the return list.
    `protected boolean` | `addKnuthElementsForBreakBefore(java.util.List returnList, LayoutContext context)` Creates Knuth elements for break-before and adds them to the return list.
    `protected void` | `addKnuthElementsForSpaceAfter(java.util.List returnList, int alignment)` Creates Knuth elements for space-after and adds them to the return list.
    `protected void` | `addKnuthElementsForSpaceBefore(java.util.List returnList, int alignment)` Creates Knuth elements for space-before and adds them to the return list.
    `protected void` | `addLastVisibleMarks(java.util.List<ListElement> elements, LayoutContext context, int alignment)` Adds elements the LM's last/closing marks to the specified list, and updates the layout context accordingly.
    `protected void` | `addPendingMarks(LayoutContext context)` Adds the unresolved elements for border and padding to a layout context so break possibilities can be properly constructed.
    `protected boolean` | `breakBeforeServed(LayoutContext context, java.util.List<ListElement> elements)` Check whether there is a break-before condition.
    `void` | `discardSpace(KnuthGlue spaceGlue)` Discard space.
    `protected void` | `flush()` Force current area to be added to parent area.
    `protected Position` | `getAuxiliaryPosition()`
    `int` | `getBreakBefore()` Returns the highest priority break-before value on this layout manager or its relevant descendants.
    `java.util.List` | `getChangedKnuthElements(java.util.List oldList, int alignment)` Get a sequence of KnuthElements representing the content of the node assigned to the LM, after changes have been applied In the context of line breaking, this method is called after hyphenation has been performed, in order to receive the sequence of elements representing the text together with all possible hyphenation points.
    `int` | `getContentAreaBPD()` Returns the BPD of the content area
    `int` | `getContentAreaIPD()` Returns the IPD of the content area
    `protected BlockParent` | `getCurrentArea()`
    `protected int` | `getIPIndents()`
    `Keep` | `getKeepTogether()` Returns the keep-together strength for this element.
    `KeepProperty` | `getKeepTogetherProperty()` Returns the keep-together property specified on the FObj.
    `Keep` | `getKeepWithNext()` Returns the keep-with-next strength for this element.
    `KeepProperty` | `getKeepWithNextProperty()` Returns the keep-with-next property specified on the FObj.
    `Keep` | `getKeepWithPrevious()` Returns the keep-with-previous strength for this element.
    `KeepProperty` | `getKeepWithPreviousProperty()` Returns the keep-with-previous property specified on the FObj.
    `protected java.util.List<ListElement>` | `getNextChildElements(LayoutManager childLM, LayoutContext context, LayoutContext childLC, int alignment, java.util.Stack<LayoutManager> lmStack, Position restartPosition, LayoutManager restartAtLM)` Gets the next set of child elements for the given childLM.
    `java.util.List` | `getNextKnuthElements(LayoutContext context, int alignment)` Get a sequence of KnuthElements representing the content of the node assigned to the LM.
    `java.util.List` | `getNextKnuthElements(LayoutContext context, int alignment, java.util.Stack lmStack, Position restartPosition, LayoutManager restartAtLM)` Returns an updated list of Knuth elements corresponding to this layout manager, after a change of IPD has been detected.
    `protected Keep` | `getParentKeepTogether()` Retrieves and returns the keep-together strength from the parent element.
    `protected SpaceProperty` | `getSpaceAfterProperty()`
    `protected SpaceProperty` | `getSpaceBeforeProperty()`
    `boolean` | `handleOverflow(int milliPoints)` Whether this LM can handle horizontal overflow error messages (only a BlockContainerLayoutManager can).
    `protected LayoutContext` | `makeChildLayoutContext(LayoutContext context)` Creates and initializes a `LayoutContext` to pass to the child LM
    `boolean` | `mustKeepTogether()`
    `boolean` | `mustKeepWithNext()`
    `boolean` | `mustKeepWithPrevious()`
    `protected int` | `neededUnits(int len)`
    `int` | `negotiateBPDAdjustment(int adj, KnuthElement lastElement)` Negotiate BPD adjustment.
    `void` | `reset()` Re-initializes this layout manager in order to re-generate its Knuth elements according to a new IPD value.
    `protected void` | `setContentAreaIPD(int contentAreaIPD)` Sets the IPD of the content area
    `protected void` | `setCurrentArea(BlockParent parentArea)` Set the current area being filled.
    `protected int` | `updateContentAreaIPDwithOverconstrainedAdjust()` Determines and sets the content area IPD based on available reference area IPD, start- and end-indent properties.
    `protected int` | `updateContentAreaIPDwithOverconstrainedAdjust(int contentIPD)` Sets the content area IPD by directly supplying the value.
    `protected void` | `wrapPositionElement(ListElement el, java.util.List targetList, boolean force)` "wrap" the Position inside the given element and add it to the target list.
    `protected void` | `wrapPositionElements(java.util.List sourceList, java.util.List targetList)` "wrap" the Position inside each element moving the elements from SourceList to targetList
    `protected void` | `wrapPositionElements(java.util.List sourceList, java.util.List targetList, boolean force)` "wrap" the Position inside each element moving the elements from SourceList to targetList

    - ### Methods inherited from class org.apache.fop.layoutmgr.AbstractLayoutManager

      `addAreas, addChildLM, addChildLMs, addId, checkEndOfLayout, createChildLMs, createNextChildLMs, getBaselineOffset, getChildLM, getChildLMs, getCurrentPage, getCurrentPV, getParent, getParentArea, getPSLM, handlingFloat, hasLineAreaDescendant, hasNextChildLM, initialize, isFinished, isFirst, isLast, newNoLineAreaDescendantException, notifyEndOfLayout, notifyPos, possiblyRegisterMarkersForTables, preserveChildrenAtEndOfLayout, recreateChildrenLMs, registerMarkers, setCurrentChildLM, setFinished, setParent, toString, transferExtensionAttachments, transferExtensions, transferForeignAttributes`

    - ### Methods inherited from class org.apache.fop.layoutmgr.AbstractBaseLayoutManager

      `getAncestorBlockAreaBPD, getAncestorBlockAreaIPD, getBaseLength, getFObj, getGeneratesBlockArea, getGeneratesLineArea, getGeneratesReferenceArea, getParentAreaBPD, getParentAreaIPD, getReferenceAreaBPD, getReferenceAreaIPD, isRestartable, setGeneratesBlockArea, setGeneratesReferenceArea`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

    - ### Methods inherited from interface org.apache.fop.layoutmgr.LayoutManager

      `addAreas, addChildLM, addChildLMs, createNextChildLMs, getBaselineOffset, getChildLMs, getFObj, getGeneratesBlockArea, getGeneratesLineArea, getGeneratesReferenceArea, getParent, getParentArea, getPSLM, hasLineAreaDescendant, initialize, isFinished, isRestartable, notifyPos, setFinished, setParent`

    - ### Methods inherited from interface org.apache.fop.datatypes.PercentBaseContext

      `getBaseLength`

- - ### Field Detail

    - #### parentArea

          protected BlockParent parentArea

      parent area

    - #### bpUnit

          protected int bpUnit

      Value of the block-progression-unit (non-standard property)

    - #### adjustedSpaceBefore

          protected int adjustedSpaceBefore

      space-before value adjusted for block-progression-unit handling

    - #### adjustedSpaceAfter

          protected int adjustedSpaceAfter

      space-after value adjusted for block-progression-unit handling

    - #### storedList

          protected java.util.List<KnuthElement> storedList

      Only used to store the original list when createUnitElements is called

    - #### breakBeforeServed

          protected boolean breakBeforeServed

      Indicates whether break before has been served or not

    - #### firstVisibleMarkServed

          protected boolean firstVisibleMarkServed

      Indicates whether the first visible mark has been returned by this LM, yet

    - #### referenceIPD

          protected int referenceIPD

      Reference IPD available

    - #### startIndent

          protected int startIndent

      the effective start-indent value

    - #### endIndent

          protected int endIndent

      the effective end-indent value

    - #### foSpaceBefore

          protected MinOptMax foSpaceBefore

      Holds the (one-time use) fo:block space-before and -after properties. Large fo:blocks are split into multiple Area. Blocks to accomodate the subsequent regions (pages) they are placed on. space-before is applied at the beginning of the first Block and space-after at the end of the last Block used in rendering the fo:block.

    - #### foSpaceAfter

          protected MinOptMax foSpaceAfter

      see foSpaceBefore

  - ### Constructor Detail

    - #### BlockStackingLayoutManager

          public BlockStackingLayoutManager(FObj node)

      Parameters:
        `node` - the fo this LM deals with

  - ### Method Detail

    - #### getCurrentArea

          protected BlockParent getCurrentArea()

      Returns:
        current area being filled

    - #### setCurrentArea

          protected void setCurrentArea(BlockParent parentArea)

      Set the current area being filled.
      Parameters:
        `parentArea` - the current area to be filled

    - #### addBlockSpacing

          public void addBlockSpacing(double adjust,
                                      MinOptMax minoptmax)

      Add a block spacer for space before and space after a block. This adds an empty Block area that acts as a block space.
      Parameters:
        `adjust` - the adjustment value
        `minoptmax` - the min/opt/max value of the spacing

    - #### addChildToArea

          protected void addChildToArea(Area childArea,
                                        BlockParent parentArea)

      Add the childArea to the passed area. Called by child LayoutManager when it has filled one of its areas. The LM should already have an Area in which to put the child. See if the area will fit in the current area. If so, add it. Otherwise initiate breaking.
      Parameters:
        `childArea` - the area to add: will be some block-stacked Area.
        `parentArea` - the area in which to add the childArea

    - #### addChildArea

          public void addChildArea(Area childArea)

      Add the childArea to the current area. Called by child LayoutManager when it has filled one of its areas. The LM should already have an Area in which to put the child. See if the area will fit in the current area. If so, add it. Otherwise initiate breaking.
      Specified by:
        `addChildArea` in interface `LayoutManager`
      Overrides:
        `addChildArea` in class `AbstractLayoutManager`
      Parameters:
        `childArea` - the area to add: will be some block-stacked Area.

    - #### flush

          protected void flush()

      Force current area to be added to parent area.

    - #### getAuxiliaryPosition

          protected Position getAuxiliaryPosition()

      Returns:
        a cached auxiliary Position instance used for things like spaces.

    - #### neededUnits

          protected int neededUnits(int len)

      Parameters:
        `len` - length in millipoints to span with bp units
      Returns:
        the minimum integer n such that n * bpUnit >= len

    - #### updateContentAreaIPDwithOverconstrainedAdjust

          protected int updateContentAreaIPDwithOverconstrainedAdjust()

      Determines and sets the content area IPD based on available reference area IPD, start- and end-indent properties. end-indent is adjusted based on overconstrained geometry rules, if necessary.
      Returns:
        the resulting content area IPD

    - #### updateContentAreaIPDwithOverconstrainedAdjust

          protected int updateContentAreaIPDwithOverconstrainedAdjust(int contentIPD)

      Sets the content area IPD by directly supplying the value. end-indent is adjusted based on overconstrained geometry rules, if necessary.
      Parameters:
        `contentIPD` - the IPD of the content
      Returns:
        the resulting content area IPD

    - #### getNextKnuthElements

          public java.util.List getNextKnuthElements(LayoutContext context,
                                                     int alignment)

      Get a sequence of KnuthElements representing the content of the node assigned to the LM.
      Specified by:
        `getNextKnuthElements` in interface `LayoutManager`
      Overrides:
        `getNextKnuthElements` in class `AbstractLayoutManager`
      Parameters:
        `context` - the LayoutContext used to store layout information
        `alignment` - the desired text alignment
      Returns:
        the list of KnuthElements

    - #### getNextKnuthElements

          public java.util.List getNextKnuthElements(LayoutContext context,
                                                     int alignment,
                                                     java.util.Stack lmStack,
                                                     Position restartPosition,
                                                     LayoutManager restartAtLM)

      Returns an updated list of Knuth elements corresponding to this layout manager, after a change of IPD has been detected.
      Specified by:
        `getNextKnuthElements` in interface `LayoutManager`
      Overrides:
        `getNextKnuthElements` in class `AbstractBaseLayoutManager`
      Parameters:
        `context` - the layout context
        `alignment` - the alignment
        `lmStack` - the stack of LMs that are active at the IPD change
        `restartPosition` - the position corresponding to the element finishing the page before the IPD change
        `restartAtLM` - if not null, the layout manager from which to restart. That is, the IPD change occurs between two block elements and not inside a paragraph
      Returns:
        an updated list of elements, taking the new IPD into account

    - #### makeChildLayoutContext

          protected LayoutContext makeChildLayoutContext(LayoutContext context)

      Creates and initializes a `LayoutContext` to pass to the child LM
      Parameters:
        `context` - the parent `LayoutContext`
      Returns:
        a new child layout context

    - #### addFirstVisibleMarks

          protected void addFirstVisibleMarks(java.util.List<ListElement> elements,
                                              LayoutContext context,
                                              int alignment)

      Checks if this LM's first "visible marks" (= borders, padding, spaces) have already been processed, and if necessary, adds corresponding elements to the specified list, and updates the given layout context accordingly.
      Parameters:
        `elements` - the element list
        `context` - the layout context
        `alignment` - the vertical alignment

    - #### addLastVisibleMarks

          protected void addLastVisibleMarks(java.util.List<ListElement> elements,
                                             LayoutContext context,
                                             int alignment)

      Adds elements the LM's last/closing marks to the specified list, and updates the layout context accordingly.
      Parameters:
        `elements` - the element list
        `context` - the layout context
        `alignment` - the vertical alignment

    - #### breakBeforeServed

          protected boolean breakBeforeServed(LayoutContext context,
                                              java.util.List<ListElement> elements)

      Check whether there is a break-before condition. If so, and the specified `context` allows it, add the necessary elements to the given `elements` list.
      Parameters:
        `context` - the layout context
        `elements` - the element list
      Returns:
        `false` if there is a break-before condition, and it has not been served; `true` otherwise

    - #### getNextChildElements

          protected java.util.List<ListElement> getNextChildElements(LayoutManager childLM,
                                                                     LayoutContext context,
                                                                     LayoutContext childLC,
                                                                     int alignment,
                                                                     java.util.Stack<LayoutManager> lmStack,
                                                                     Position restartPosition,
                                                                     LayoutManager restartAtLM)

      Gets the next set of child elements for the given childLM. The default implementation basically copies the pending marks to the child layout context, and subsequently calls the appropriate variant of `childLM.getNextKnuthElements()`, passing it all relevant parameters.
      Parameters:
        `childLM` - the current child LM
        `context` - the layout context
        `childLC` - the child layout context
        `alignment` - the vertical alignment
        `lmStack` - the stack of currently active LMs (if any)
        `restartPosition` - the position to restart from (if any)
        `restartAtLM` - the LM to restart from (if any)
      Returns:
        list of elements corresponding to the content generated by childLM

    - #### addInBetweenBreak

          protected void addInBetweenBreak(java.util.List<ListElement> contentList,
                                           LayoutContext parentLC,
                                           LayoutContext childLC)

      Adds a break element to the content list between individual child elements.
      Parameters:
        `contentList` - the content list
        `parentLC` - the parent layout context
        `childLC` - the currently active child layout context

    - #### negotiateBPDAdjustment

          public int negotiateBPDAdjustment(int adj,
                                            KnuthElement lastElement)

      Negotiate BPD adjustment.
      Specified by:
        `negotiateBPDAdjustment` in interface `BlockLevelLayoutManager`
      Parameters:
        `adj` - amount to adjust
        `lastElement` - the last knuth element
      Returns:
        the resulting adjusted BPD

    - #### discardSpace

          public void discardSpace(KnuthGlue spaceGlue)

      Discard space.
      Specified by:
        `discardSpace` in interface `BlockLevelLayoutManager`
      Parameters:
        `spaceGlue` - the space

    - #### getChangedKnuthElements

          public java.util.List getChangedKnuthElements(java.util.List oldList,
                                                        int alignment)

      Get a sequence of KnuthElements representing the content of the node assigned to the LM, after changes have been applied In the context of line breaking, this method is called after hyphenation has been performed, in order to receive the sequence of elements representing the text together with all possible hyphenation points. For example, if the text "representation" originates a single box element when getNextKnuthElements() is called, it will be now split in syllables (rep-re-sen-ta-tion) each one originating a box and divided by additional elements allowing a line break. In the context of page breaking, this method is called only if the pages need to be "vertically justified" modifying (also) the quantity of lines created by the paragraphs, and after a first page breaking has been performed. According to the result of the first page breaking, each paragraph now knows how many lines it must create (among the existing layout possibilities) and has to create a sequence of elements representing this layout; in particular, each box, representing a line, will contain a LineBreakPositions that will be used in the addAreas() phase. LMs having children look at the old list of elements in order to know which ones they must get the new elements from, as break conditions of preserved linefeeds can divide children into smaller groups (page sequences or paragraphs). LMs having no children can simply return the old elements if they have nothing to change. Inline LMs need to know the text alignment because it affects the elements representing feasible breaks between syllables.
      Specified by:
        `getChangedKnuthElements` in interface `LayoutManager`
      Overrides:
        `getChangedKnuthElements` in class `AbstractLayoutManager`
      Parameters:
        `oldList` - the elements to replace
        `alignment` - the desired text alignment
      Returns:
        the updated list of KnuthElements

    - #### getParentKeepTogether

          protected Keep getParentKeepTogether()

      Retrieves and returns the keep-together strength from the parent element.
      Returns:
        the keep-together strength

    - #### mustKeepTogether

          public boolean mustKeepTogether()

      Specified by:
        `mustKeepTogether` in interface `BlockLevelLayoutManager`
      Returns:
        true if this element must be kept together

    - #### mustKeepWithPrevious

          public boolean mustKeepWithPrevious()

      Specified by:
        `mustKeepWithPrevious` in interface `BlockLevelLayoutManager`
      Returns:
        true if this element must be kept with the previous element.

    - #### mustKeepWithNext

          public boolean mustKeepWithNext()

      Specified by:
        `mustKeepWithNext` in interface `BlockLevelLayoutManager`
      Returns:
        true if this element must be kept with the next element.

    - #### getKeepTogether

          public Keep getKeepTogether()

      Returns the keep-together strength for this element.
      Specified by:
        `getKeepTogether` in interface `BlockLevelLayoutManager`
      Returns:
        the keep-together strength

    - #### getKeepWithPrevious

          public Keep getKeepWithPrevious()

      Returns the keep-with-previous strength for this element.
      Specified by:
        `getKeepWithPrevious` in interface `BlockLevelLayoutManager`
      Returns:
        the keep-with-previous strength

    - #### getKeepWithNext

          public Keep getKeepWithNext()

      Returns the keep-with-next strength for this element.
      Specified by:
        `getKeepWithNext` in interface `BlockLevelLayoutManager`
      Returns:
        the keep-with-next strength

    - #### getKeepTogetherProperty

          public KeepProperty getKeepTogetherProperty()

      Returns the keep-together property specified on the FObj. Default implementation throws a `IllegalStateException`. Must be implemented by the subclass, if applicable.
      Specified by:
        `getKeepTogetherProperty` in interface `BlockLevelLayoutManager`
      Returns:
        the keep-together property

    - #### getKeepWithPreviousProperty

          public KeepProperty getKeepWithPreviousProperty()

      Returns the keep-with-previous property specified on the FObj. Default implementation throws a `IllegalStateException`. Must be implemented by the subclass, if applicable.
      Specified by:
        `getKeepWithPreviousProperty` in interface `BlockLevelLayoutManager`
      Returns:
        the keep-together property

    - #### getKeepWithNextProperty

          public KeepProperty getKeepWithNextProperty()

      Returns the keep-with-next property specified on the FObj. Default implementation throws a `IllegalStateException`. Must be implemented by the subclass, if applicable.
      Specified by:
        `getKeepWithNextProperty` in interface `BlockLevelLayoutManager`
      Returns:
        the keep-together property

    - #### addPendingMarks

          protected void addPendingMarks(LayoutContext context)

      Adds the unresolved elements for border and padding to a layout context so break possibilities can be properly constructed.
      Parameters:
        `context` - the layout context

    - #### getSpaceBeforeProperty

          protected SpaceProperty getSpaceBeforeProperty()

      Returns:
        the space-before property

    - #### getSpaceAfterProperty

          protected SpaceProperty getSpaceAfterProperty()

      Returns:
        the space-after property

    - #### addKnuthElementsForBorderPaddingBefore

          protected void addKnuthElementsForBorderPaddingBefore(java.util.List returnList,
                                                                boolean isFirst)

      Creates Knuth elements for before border padding and adds them to the return list.
      Parameters:
        `returnList` - return list to add the additional elements to
        `isFirst` - true if this is the first time a layout manager instance needs to generate border and padding

    - #### addKnuthElementsForBorderPaddingAfter

          protected void addKnuthElementsForBorderPaddingAfter(java.util.List returnList,
                                                               boolean isLast)

      Creates Knuth elements for after border padding and adds them to the return list.
      Parameters:
        `returnList` - return list to add the additional elements to
        `isLast` - true if this is the last time a layout manager instance needs to generate border and padding

    - #### addKnuthElementsForBreakBefore

          protected boolean addKnuthElementsForBreakBefore(java.util.List returnList,
                                                           LayoutContext context)

      Creates Knuth elements for break-before and adds them to the return list.
      Parameters:
        `returnList` - return list to add the additional elements to
        `context` - the layout context
      Returns:
        true if an element has been added due to a break-before.

    - #### getBreakBefore

          public int getBreakBefore()

      Returns the highest priority break-before value on this layout manager or its relevant descendants.
      Returns:
        the break-before value (Constants.EN_*)
      See Also:
        `BreakOpportunity.getBreakBefore()`

    - #### addKnuthElementsForBreakAfter

          protected boolean addKnuthElementsForBreakAfter(java.util.List returnList,
                                                          LayoutContext context)

      Creates Knuth elements for break-after and adds them to the return list.
      Parameters:
        `returnList` - return list to add the additional elements to
        `context` - the layout context
      Returns:
        true if an element has been added due to a break-after.

    - #### addKnuthElementsForSpaceBefore

          protected void addKnuthElementsForSpaceBefore(java.util.List returnList,
                                                        int alignment)

      Creates Knuth elements for space-before and adds them to the return list.
      Parameters:
        `returnList` - return list to add the additional elements to
        `alignment` - vertical alignment

    - #### addKnuthElementsForSpaceAfter

          protected void addKnuthElementsForSpaceAfter(java.util.List returnList,
                                                       int alignment)

      Creates Knuth elements for space-after and adds them to the return list.
      Parameters:
        `returnList` - return list to add the additional elements to
        `alignment` - vertical alignment

    - #### wrapPositionElements

          protected void wrapPositionElements(java.util.List sourceList,
                                              java.util.List targetList)

      "wrap" the Position inside each element moving the elements from SourceList to targetList
      Parameters:
        `sourceList` - source list
        `targetList` - target list receiving the wrapped position elements

    - #### wrapPositionElements

          protected void wrapPositionElements(java.util.List sourceList,
                                              java.util.List targetList,
                                              boolean force)

      "wrap" the Position inside each element moving the elements from SourceList to targetList
      Parameters:
        `sourceList` - source list
        `targetList` - target list receiving the wrapped position elements
        `force` - if true, every Position is wrapped regardless of its LM of origin

    - #### wrapPositionElement

          protected void wrapPositionElement(ListElement el,
                                             java.util.List targetList,
                                             boolean force)

      "wrap" the Position inside the given element and add it to the target list.
      Parameters:
        `el` - the list element
        `targetList` - target list receiving the wrapped position elements
        `force` - if true, every Position is wrapped regardless of its LM of origin

    - #### getIPIndents

          protected int getIPIndents()

      Returns:
        the sum of start-indent and end-indent

    - #### getContentAreaIPD

          public int getContentAreaIPD()

      Returns the IPD of the content area
      Specified by:
        `getContentAreaIPD` in interface `LayoutManager`
      Overrides:
        `getContentAreaIPD` in class `AbstractBaseLayoutManager`
      Returns:
        the IPD of the content area

    - #### setContentAreaIPD

          protected void setContentAreaIPD(int contentAreaIPD)

      Sets the IPD of the content area
      Parameters:
        `contentAreaIPD` - the IPD of the content area

    - #### getContentAreaBPD

          public int getContentAreaBPD()

      Returns the BPD of the content area
      Specified by:
        `getContentAreaBPD` in interface `LayoutManager`
      Overrides:
        `getContentAreaBPD` in class `AbstractBaseLayoutManager`
      Returns:
        the BPD of the content area

    - #### reset

          public void reset()

      Re-initializes this layout manager in order to re-generate its Knuth elements according to a new IPD value.
      Specified by:
        `reset` in interface `LayoutManager`
      Overrides:
        `reset` in class `AbstractLayoutManager`

    - #### handleOverflow

          public boolean handleOverflow(int milliPoints)

      Whether this LM can handle horizontal overflow error messages (only a BlockContainerLayoutManager can).
      Parameters:
        `milliPoints` - horizontal overflow
      Returns:
        true if handled by a BlockContainerLayoutManager

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