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java.lang.Objectorg.apache.fop.layoutmgr.AbstractBaseLayoutManager
org.apache.fop.layoutmgr.AbstractLayoutManager
org.apache.fop.layoutmgr.BlockStackingLayoutManager
org.apache.fop.layoutmgr.FlowLayoutManager
public class FlowLayoutManager
LayoutManager for an fo:flow object. Its parent LM is the PageSequenceLayoutManager. This LM is responsible for getting columns of the appropriate size and filling them with block-level areas generated by its children.
Nested Class Summary |
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Nested classes/interfaces inherited from class org.apache.fop.layoutmgr.BlockStackingLayoutManager |
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BlockStackingLayoutManager.MappingPosition, BlockStackingLayoutManager.StackingIter |
Field Summary |
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Fields inherited from class org.apache.fop.layoutmgr.BlockStackingLayoutManager |
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adjustedSpaceAfter, adjustedSpaceBefore, bpUnit, breakBeforeServed, endIndent, firstVisibleMarkServed, foSpaceAfter, foSpaceBefore, parentArea, referenceIPD, startIndent, storedList |
Fields inherited from class org.apache.fop.layoutmgr.AbstractLayoutManager |
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childLMiter, childLMs, curChildLM, fobjIter, parentLM |
Fields inherited from class org.apache.fop.layoutmgr.AbstractBaseLayoutManager |
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fobj, generatesBlockArea, generatesReferenceArea |
Fields inherited from interface org.apache.fop.layoutmgr.BlockLevelLayoutManager |
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LINE_HEIGHT_ADJUSTMENT, LINE_NUMBER_ADJUSTMENT, NO_ADJUSTMENT, SPACE_AFTER_ADJUSTMENT, SPACE_BEFORE_ADJUSTMENT |
Constructor Summary | |
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FlowLayoutManager(PageSequenceLayoutManager pslm,
Flow node)
This is the top level layout manager. |
Method Summary | |
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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 child area to a the correct container, depending on its area class. |
void |
discardSpace(KnuthGlue spaceGlue)
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java.util.LinkedList |
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 possibile hyphenation points. |
int |
getContentAreaBPD()
Returns the BPD of the content area |
int |
getContentAreaIPD()
Returns the IPD of the content area |
java.util.LinkedList |
getNextKnuthElements(LayoutContext context,
int alignment)
Get a sequence of KnuthElements representing the content of the node assigned to the LM |
Area |
getParentArea(Area childArea)
Return an Area which can contain the passed childArea. |
boolean |
mustKeepTogether()
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boolean |
mustKeepWithNext()
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boolean |
mustKeepWithPrevious()
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int |
negotiateBPDAdjustment(int adj,
KnuthElement lastElement)
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Methods inherited from class org.apache.fop.layoutmgr.AbstractLayoutManager |
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addChildLM, addChildLMs, addMarkersToPage, createChildLMs, createNextChildLMs, getChildLM, getChildLMs, getCurrentPage, getCurrentPV, getParent, getPSLM, hasNextChildLM, initialize, isFinished, isFirst, isLast, notifyPos, setFinished, setParent, toString, transferForeignAttributes |
Methods inherited from class org.apache.fop.layoutmgr.AbstractBaseLayoutManager |
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getAncestorBlockAreaBPD, getAncestorBlockAreaIPD, getBaseLength, getFObj, getGeneratesBlockArea, getGeneratesLineArea, getGeneratesReferenceArea, getParentAreaBPD, getParentAreaIPD, getReferenceAreaBPD, getReferenceAreaIPD, setGeneratesBlockArea, setGeneratesReferenceArea |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.apache.fop.layoutmgr.LayoutManager |
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addChildLM, addChildLMs, createNextChildLMs, getChildLMs, getFObj, getGeneratesBlockArea, getGeneratesLineArea, getGeneratesReferenceArea, getParent, getPSLM, initialize, isFinished, notifyPos, setFinished, setParent |
Methods inherited from interface org.apache.fop.datatypes.PercentBaseContext |
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getBaseLength |
Constructor Detail |
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public FlowLayoutManager(PageSequenceLayoutManager pslm, Flow node)
pslm
- parent PageSequenceLayoutManager objectnode
- Flow objectMethod Detail |
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public java.util.LinkedList getNextKnuthElements(LayoutContext context, int alignment)
getNextKnuthElements
in interface LayoutManager
getNextKnuthElements
in class BlockStackingLayoutManager
context
- the LayoutContext used to store layout informationalignment
- the desired text alignement
public int negotiateBPDAdjustment(int adj, KnuthElement lastElement)
negotiateBPDAdjustment
in interface BlockLevelLayoutManager
negotiateBPDAdjustment
in class BlockStackingLayoutManager
public void discardSpace(KnuthGlue spaceGlue)
discardSpace
in interface BlockLevelLayoutManager
discardSpace
in class BlockStackingLayoutManager
public boolean mustKeepTogether()
mustKeepTogether
in interface BlockLevelLayoutManager
mustKeepTogether
in class BlockStackingLayoutManager
public boolean mustKeepWithPrevious()
mustKeepWithPrevious
in interface BlockLevelLayoutManager
mustKeepWithPrevious
in class BlockStackingLayoutManager
public boolean mustKeepWithNext()
mustKeepWithNext
in interface BlockLevelLayoutManager
mustKeepWithNext
in class BlockStackingLayoutManager
public java.util.LinkedList getChangedKnuthElements(java.util.List oldList, int alignment)
getChangedKnuthElements
in interface LayoutManager
getChangedKnuthElements
in class BlockStackingLayoutManager
oldList
- the elements to replacealignment
- the desired text alignment
public void addAreas(PositionIterator parentIter, LayoutContext layoutContext)
addAreas
in interface LayoutManager
addAreas
in class AbstractLayoutManager
parentIter
- the position iteratorlayoutContext
- the contextpublic void addChildArea(Area childArea)
addChildArea
in interface LayoutManager
addChildArea
in class BlockStackingLayoutManager
childArea
- the area to addpublic Area getParentArea(Area childArea)
getParentArea
in interface LayoutManager
getParentArea
in class AbstractLayoutManager
childArea
- the child area for which the parent area is wanted
public int getContentAreaIPD()
getContentAreaIPD
in interface LayoutManager
getContentAreaIPD
in class BlockStackingLayoutManager
public int getContentAreaBPD()
getContentAreaBPD
in interface LayoutManager
getContentAreaBPD
in class BlockStackingLayoutManager
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