Package org.apache.fop.area
Class LineArea
java.lang.Object
org.apache.fop.area.AreaTreeObject
org.apache.fop.area.Area
org.apache.fop.area.LineArea
- All Implemented Interfaces:
Serializable
,Cloneable
The line area.
This is a line area that contains inline areas.
- See Also:
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Field Summary
Fields inherited from class org.apache.fop.area.Area
bidiLevel, bpd, CLASS_ABSOLUTE, CLASS_BEFORE_FLOAT, CLASS_FIXED, CLASS_FOOTNOTE, CLASS_MAX, CLASS_NORMAL, CLASS_SIDE_FLOAT, effectiveIPD, ipd, log, ORIENT_0, ORIENT_180, ORIENT_270, ORIENT_90, traits
Fields inherited from class org.apache.fop.area.AreaTreeObject
extensionAttachments, foreignAttributes
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionvoid
addChildArea
(Area childArea) Add a child area to this line area.void
addInlineArea
(InlineArea area) Add an inline child area to this line area.void
finish()
apply the variation factor to all descendant areas and destroy the AdjustingInfo object if there are no UnresolvedAreas leftint
int
Get the end indent of this line area.Get the inline child areas of this line area.int
Get the start indent of this line area.void
handleIPDVariation
(int ipdVariation) receive notification about the ipd variation of a descendant area and perform the needed adjustment, according to the alignment; in particular: left-aligned text needs no adjustement; right-aligned text and centered text are handled locally, adjusting the indent of this LineArea; justified text requires a more complex adjustment, as the variation factor computed on the basis of the total stretch and shrink of the line must be applied in every descendant leaf areas (text areas and leader areas).void
setInlineAreas
(List inlineAreas) Set (en masse) the inline child areas of this line area.void
Updates the extents of the line area from its children.Methods inherited from class org.apache.fop.area.Area
activateEffectiveIPD, addTrait, clone, getAllocBPD, getAllocIPD, getAreaClass, getBidiLevel, getBorderAndPaddingWidthAfter, getBorderAndPaddingWidthBefore, getBorderAndPaddingWidthEnd, getBorderAndPaddingWidthStart, getBPD, getChangeBarList, getEffectiveAllocIPD, getIPD, getSpaceAfter, getSpaceBefore, getSpaceEnd, getSpaceStart, getTrait, getTraitAsBoolean, getTraitAsInteger, getTraits, hasTrait, hasTraits, resetBidiLevel, setAreaClass, setBidiLevel, setBPD, setChangeBarList, setIPD, setTraits, setWritingModeTraits, toString
Methods inherited from class org.apache.fop.area.AreaTreeObject
addExtensionAttachment, getExtensionAttachments, getForeignAttributes, getForeignAttributeValue, hasExtensionAttachments, setExtensionAttachments, setForeignAttribute, setForeignAttributes
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Constructor Details
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LineArea
public LineArea()default constructor: nothing to do -
LineArea
public LineArea(int alignment, int diff, int stretch, int shrink) constructor with extra parameters: a new LineAdjustingInfo object is created- Parameters:
alignment
- alignment of this linediff
- difference between content width and line widthstretch
- the available stretch for any adjustmentsshrink
- the available shrink for any adjustments
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Method Details
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addChildArea
Add a child area to this line area.- Overrides:
addChildArea
in classArea
- Parameters:
childArea
- the inline child area to add
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addInlineArea
Add an inline child area to this line area.- Parameters:
area
- the inline child area to add
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setInlineAreas
Set (en masse) the inline child areas of this line area.
Used by bidirectional processing after line area consituent reordering.
- Parameters:
inlineAreas
- the list of inline areas
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getInlineAreas
Get the inline child areas of this line area.- Returns:
- the list of inline areas
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getStartIndent
public int getStartIndent()Get the start indent of this line area. The start indent is used for offsetting the start of the inline areas for alignment or other indents.- Returns:
- the start indent value
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getEndIndent
public int getEndIndent()Get the end indent of this line area. The end indent is used for offsetting the end of the inline areas for alignment or other indents.- Returns:
- the end indent value
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updateExtentsFromChildren
public void updateExtentsFromChildren()Updates the extents of the line area from its children. -
handleIPDVariation
public void handleIPDVariation(int ipdVariation) receive notification about the ipd variation of a descendant area and perform the needed adjustment, according to the alignment; in particular:- left-aligned text needs no adjustement;
- right-aligned text and centered text are handled locally, adjusting the indent of this LineArea;
- justified text requires a more complex adjustment, as the variation factor computed on the basis of the total stretch and shrink of the line must be applied in every descendant leaf areas (text areas and leader areas).
- Parameters:
ipdVariation
- the difference between old and new ipd
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finish
public void finish()apply the variation factor to all descendant areas and destroy the AdjustingInfo object if there are no UnresolvedAreas left -
getEffectiveIPD
public int getEffectiveIPD()- Overrides:
getEffectiveIPD
in classArea
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