fop 1.0

org.apache.fop.layoutmgr
Class BlockLayoutManager

java.lang.Object
  extended byorg.apache.fop.layoutmgr.AbstractBaseLayoutManager
      extended byorg.apache.fop.layoutmgr.AbstractLayoutManager
          extended byorg.apache.fop.layoutmgr.BlockStackingLayoutManager
              extended byorg.apache.fop.layoutmgr.BlockLayoutManager
All Implemented Interfaces:
BlockLevelLayoutManager, ConditionalElementListener, Constants, LayoutManager, PercentBaseContext

public class BlockLayoutManager
extends BlockStackingLayoutManager
implements ConditionalElementListener

LayoutManager for a block FO.


Nested Class Summary
protected  class BlockLayoutManager.ProxyLMiter
          Proxy iterator for Block LM.
 
Nested classes inherited from class org.apache.fop.layoutmgr.BlockStackingLayoutManager
BlockStackingLayoutManager.MappingPosition, BlockStackingLayoutManager.StackingIter
 
Field Summary
protected  java.util.ListIterator proxyLMiter
          Iterator over the child layout managers.
 
Fields inherited from class org.apache.fop.layoutmgr.BlockStackingLayoutManager
adjustedSpaceAfter, adjustedSpaceBefore, bpUnit, breakBeforeServed, endIndent, firstVisibleMarkServed, foSpaceAfter, foSpaceBefore, parentArea, referenceIPD, startIndent, storedList
 
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_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_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_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_TB, EN_RTL, EN_RULE, EN_SATURATION, EN_SCALE_DOWN_TO_FIT, EN_SCALE_TO_FIT, EN_SCALE_UP_TO_FIT, EN_SCROLL, 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_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, EN_X_DISTRIBUTE, EN_X_FILL, 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_ALT_TEXT, PR_X_BLOCK_PROGRESSION_UNIT, PR_X_DISABLE_COLUMN_BALANCING, PR_X_ORPHAN_CONTENT_LIMIT, PR_X_PTR, PR_X_WIDOW_CONTENT_LIMIT, PR_XML_LANG, PR_Z_INDEX, PROPERTY_COUNT, PROPERTY_MASK
 
Constructor Summary
BlockLayoutManager(Block inBlock)
          Creates a new BlockLayoutManager.
 
Method Summary
 void addAreas(PositionIterator parentIter, LayoutContext layoutContext)
          Tell the layout manager to add all the child areas implied by Position objects which will be returned by the Iterator.
 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.
 boolean createNextChildLMs(int pos)
          Create more child LMs of the parent, up to child LM index pos
protected  void flush()
          Force current area to be added to parent area.
protected  Block getBlockFO()
          convenience method that returns the Block node
 int getContentAreaBPD()
          Returns the BPD of the content area
 int getContentAreaIPD()
          Returns the IPD of the content area
 boolean getGeneratesBlockArea()
          Returns an indication if the layout manager generates a block area.
 KeepProperty getKeepTogetherProperty()
          Returns the keep-together property specified on the FObj. Default implementation throws a IllegalStateException. Must be implemented by the subclass, if applicable.
 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.
 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.
 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.
 Area getParentArea(Area childArea)
          Return an Area which can contain the passed childArea.
 void initialize()
          initialize the layout manager. Allows each layout manager to calculate often used values.
 boolean isRestartable()
          Returns if this layout manager is able to re-generate its Knuth elements after an IPD change.
 void notifyBorder(RelSide side, MinOptMax effectiveLength)
          Notifies the layout manager about the effective length/width of its border.
 void notifyPadding(RelSide side, MinOptMax effectiveLength)
          Notifies the layout manager about the effective length/width of its padding.
 void notifySpace(RelSide side, MinOptMax effectiveLength)
          Notifies the layout manager about the effective length of its space.
 
Methods inherited from class org.apache.fop.layoutmgr.BlockStackingLayoutManager
addBlockSpacing, addChildToArea, addInBetweenBreak, addKnuthElementsForBorderPaddingAfter, addKnuthElementsForBorderPaddingBefore, addKnuthElementsForBreakAfter, addKnuthElementsForBreakBefore, addKnuthElementsForSpaceAfter, addKnuthElementsForSpaceBefore, addPendingMarks, createUnitElements, discardSpace, getAuxiliaryPosition, getChangedKnuthElements, getCurrentArea, getIPIndents, getKeepTogether, getKeepWithNext, getKeepWithPrevious, getParentKeepTogether, mustKeepTogether, mustKeepWithNext, mustKeepWithPrevious, neededUnits, negotiateBPDAdjustment, notifyEndOfLayout, reset, setContentAreaIPD, setCurrentArea, updateContentAreaIPDwithOverconstrainedAdjust, updateContentAreaIPDwithOverconstrainedAdjust, wrapPositionElement, wrapPositionElements, wrapPositionElements
 
Methods inherited from class org.apache.fop.layoutmgr.AbstractLayoutManager
addChildLM, addChildLMs, addId, addMarkersToPage, checkEndOfLayout, createChildLMs, getChildLM, getChildLMs, getCurrentPage, getCurrentPV, getParent, getPSLM, hasNextChildLM, isFinished, isFirst, isLast, notifyPos, setCurrentChildLM, setFinished, setParent, toString, transferExtensionAttachments, transferExtensions, transferForeignAttributes
 
Methods inherited from class org.apache.fop.layoutmgr.AbstractBaseLayoutManager
getAncestorBlockAreaBPD, getAncestorBlockAreaIPD, getBaseLength, getFObj, getGeneratesLineArea, getGeneratesReferenceArea, getParentAreaBPD, getParentAreaIPD, getReferenceAreaBPD, getReferenceAreaIPD, 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
addChildLM, addChildLMs, getChildLMs, getFObj, getGeneratesLineArea, getGeneratesReferenceArea, getParent, getPSLM, isFinished, notifyPos, setFinished, setParent
 
Methods inherited from interface org.apache.fop.datatypes.PercentBaseContext
getBaseLength
 

Field Detail

proxyLMiter

protected java.util.ListIterator proxyLMiter
Iterator over the child layout managers.

Constructor Detail

BlockLayoutManager

public BlockLayoutManager(Block inBlock)
Creates a new BlockLayoutManager.

Parameters:
inBlock - the block FO object to create the layout manager for.
Method Detail

initialize

public void initialize()
initialize the layout manager. Allows each layout manager to calculate often used values.

Specified by:
initialize in interface LayoutManager
Overrides:
initialize in class AbstractLayoutManager

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 BlockStackingLayoutManager

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 BlockStackingLayoutManager

createNextChildLMs

public boolean createNextChildLMs(int pos)
Create more child LMs of the parent, up to child LM index pos

Specified by:
createNextChildLMs in interface LayoutManager
Overrides:
createNextChildLMs in class AbstractLayoutManager

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
Overrides:
getKeepTogetherProperty in class BlockStackingLayoutManager

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
Overrides:
getKeepWithPreviousProperty in class BlockStackingLayoutManager

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
Overrides:
getKeepWithNextProperty in class BlockStackingLayoutManager

addAreas

public void addAreas(PositionIterator parentIter,
                     LayoutContext layoutContext)
Tell the layout manager to add all the child areas implied by Position objects which will be returned by the Iterator.

Specified by:
addAreas in interface LayoutManager
Overrides:
addAreas in class AbstractLayoutManager

getParentArea

public Area getParentArea(Area childArea)
Return an Area which can contain the passed childArea. The childArea may not yet have any content, but it has essential traits set. In general, if the LayoutManager already has an Area it simply returns it. Otherwise, it makes a new Area of the appropriate class. It gets a parent area for its area by calling its parent LM. Finally, based on the dimensions of the parent area, it initializes its own area. This includes setting the content IPD and the maximum BPD.

Specified by:
getParentArea in interface LayoutManager
Overrides:
getParentArea in class AbstractLayoutManager
Parameters:
childArea - area to get the parent area for
Returns:
the parent area

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 BlockStackingLayoutManager
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. Force current area to be added to parent area.

Overrides:
flush in class BlockStackingLayoutManager

getBlockFO

protected Block getBlockFO()
convenience method that returns the Block node

Returns:
the block node

getContentAreaIPD

public int getContentAreaIPD()
Returns the IPD of the content area

Specified by:
getContentAreaIPD in interface LayoutManager
Overrides:
getContentAreaIPD in class BlockStackingLayoutManager
Returns:
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 BlockStackingLayoutManager
Returns:
the BPD of the content area

getGeneratesBlockArea

public boolean getGeneratesBlockArea()
Returns an indication if the layout manager generates a block area.

Specified by:
getGeneratesBlockArea in interface LayoutManager
Overrides:
getGeneratesBlockArea in class AbstractBaseLayoutManager

notifySpace

public void notifySpace(RelSide side,
                        MinOptMax effectiveLength)
Notifies the layout manager about the effective length of its space.

Specified by:
notifySpace in interface ConditionalElementListener
Parameters:
side - the side to which the space applies
effectiveLength - the effective length after space-resolution (null means zero length)

notifyBorder

public void notifyBorder(RelSide side,
                         MinOptMax effectiveLength)
Notifies the layout manager about the effective length/width of its border.

Specified by:
notifyBorder in interface ConditionalElementListener
Parameters:
side - the side to which the border applies
effectiveLength - the effective length in the current break situation (null means zero length)

notifyPadding

public void notifyPadding(RelSide side,
                          MinOptMax effectiveLength)
Notifies the layout manager about the effective length/width of its padding.

Specified by:
notifyPadding in interface ConditionalElementListener
Parameters:
side - the side to which the padding applies
effectiveLength - the effective length in the current break situation (null means zero length)

isRestartable

public boolean isRestartable()
Returns if this layout manager is able to re-generate its Knuth elements after an IPD change.

Specified by:
isRestartable in interface LayoutManager
Overrides:
isRestartable in class AbstractBaseLayoutManager

fop 1.0

Copyright 1999-2010 The Apache Software Foundation. All Rights Reserved.