Package com.itextpdf.layout.renderer
Class ListItemRenderer
- java.lang.Object
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- com.itextpdf.layout.renderer.AbstractRenderer
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- com.itextpdf.layout.renderer.BlockRenderer
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- com.itextpdf.layout.renderer.DivRenderer
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- com.itextpdf.layout.renderer.ListItemRenderer
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- All Implemented Interfaces:
IPropertyContainer
,IRenderer
public class ListItemRenderer extends DivRenderer
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Field Summary
Fields Modifier and Type Field Description private boolean
symbolAddedInside
protected float
symbolAreaWidth
protected IRenderer
symbolRenderer
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Fields inherited from class com.itextpdf.layout.renderer.AbstractRenderer
BOTTOM_SIDE, childRenderers, EPS, flushed, INF, isLastRendererForModelElement, LEFT_SIDE, modelElement, occupiedArea, OVERLAP_EPSILON, parent, positionedRenderers, properties, RIGHT_SIDE, TOP_SIDE
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Constructor Summary
Constructors Constructor Description ListItemRenderer(ListItem modelElement)
Creates a ListItemRenderer from its corresponding layout object.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addSymbolRenderer(IRenderer symbolRenderer, float symbolAreaWidth)
private void
applyListSymbolPosition()
private float[]
calculateAscenderDescender()
protected AbstractRenderer
createOverflowRenderer(int layoutResult)
Creates an overflow renderer.protected AbstractRenderer
createSplitRenderer(int layoutResult)
Creates a split renderer.void
draw(DrawContext drawContext)
Flushes the renderer subtree contents, i.e.IRenderer
getNextRenderer()
Gets a new instance of this class to be used as a next renderer, after this renderer is used, ifBlockRenderer.layout(LayoutContext)
is called more than once.private boolean
isListSymbolEmpty(IRenderer listSymbolRenderer)
LayoutResult
layout(LayoutContext layoutContext)
This method simulates positioning of the renderer, including all of its children, and returns theLayoutResult
, representing the layout result, including occupied area, status, i.e.private IRenderer
renderSymbolInNeutralParagraph()
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Methods inherited from class com.itextpdf.layout.renderer.BlockRenderer
applyMaxHeight, applyMinHeight, applyRotationLayout, applyVerticalAlignment, applyWidth, beginRotationIfApplied, correctFixedLayout, createRotationTransformInsideOccupiedArea, createSplitAndOverflowRenderers, decreaseLayoutBoxAfterChildPlacement, endRotationIfApplied, fixOccupiedAreaIfOverflowedX, fixOccupiedAreaIfOverflowedY, getMinMaxWidth, getOccupiedAreaBBox, getResolvedFont, handleForcedPlacement, processNotFullChildResult, recalculateLayoutBoxBeforeChildLayout, recalculateOccupiedAreaAfterChildLayout, startChildMarginsHandling, stopLayoutingChildrenIfChildResultNotFull
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Methods inherited from class com.itextpdf.layout.renderer.AbstractRenderer
addAllChildRenderers, addAllChildRenderers, addAllProperties, addChild, addChildRenderer, alignChildHorizontally, allowLastYLineRecursiveExtraction, applyAbsolutePosition, applyAbsolutePositionIfNeeded, applyAction, applyBorderBox, applyBorderBox, applyDestination, applyDestinationsAndAnnotation, applyLinkAnnotation, applyMargins, applyMargins, applyMarginsBordersPaddings, applyPaddings, applyPaddings, applyRelativePositioningTranslation, beginElementOpacityApplying, beginTransformationIfApplied, calculateAbsolutePdfBBox, calculateAdditionalWidth, calculateBBox, calculatePaddingBorderHeight, calculatePaddingBorderWidth, calculateShiftToPositionBBoxOfPointsAt, clipBackgroundArea, clipBackgroundArea, clipBorderArea, createFontCharacteristics, createXObject, deleteOwnProperty, deleteProperty, drawBackground, drawBorder, drawChildren, drawPositionedChildren, endElementOpacityApplying, endTransformationIfApplied, getAspectRatio, getBackgroundArea, getBorderAreaBBox, getBorderRadii, getBorders, getBorders, getChildRenderers, getDefaultProperty, getFirstYLineRecursively, getInnerAreaBBox, getLastYLineRecursively, getMargins, getModelElement, getOccupiedArea, getOwnProperties, getOwnProperty, getPaddings, getParent, getPdfDocument, getProperty, getProperty, getPropertyAsBoolean, getPropertyAsColor, getPropertyAsFloat, getPropertyAsFloat, getPropertyAsFloat, getPropertyAsFont, getPropertyAsInteger, getPropertyAsTransparentColor, getPropertyAsUnitValue, getPropertyAsUnitValue, getRootRenderer, hasAbsoluteUnitValue, hasAspectRatio, hasOwnOrModelProperty, hasOwnProperty, hasProperty, hasRelativeUnitValue, initElementAreas, isAbsolutePosition, isBorderBoxSizing, isFirstOnRootArea, isFirstOnRootArea, isFixedLayout, isFlushed, isKeepTogether, isKeepTogether, isNotFittingHeight, isNotFittingLayoutArea, isNotFittingWidth, isOverflowFit, isOverflowProperty, isOverflowProperty, isOverflowProperty, isPositioned, isRelativePosition, isStaticLayout, logWarningIfGetNextRendererNotOverridden, move, noAbsolutePositionInfo, preparePositionedRendererAndAreaForLayout, processWaitingDrawing, rectangleToPointsList, removeAllChildRenderers, removeChildRenderer, replaceOwnProperty, resolveFirstPdfFont, resolveFirstPdfFont, retrieveHeight, retrieveMaxHeight, retrieveMaxWidth, retrieveMinHeight, retrieveMinWidth, retrieveUnitValue, retrieveUnitValue, retrieveWidth, returnBackOwnProperty, setBorders, setChildRenderer, setChildRenderers, setMinMaxWidthBasedOnFixedWidth, setParent, setProperty, setThisAsParent, shrinkOccupiedAreaForAbsolutePosition, toString, transformPoints, updateHeight, updateHeightsOnSplit, updateHeightsOnSplit, updateMaxHeight, updateMinHeight, updateWidth
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Field Detail
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symbolRenderer
protected IRenderer symbolRenderer
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symbolAreaWidth
protected float symbolAreaWidth
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symbolAddedInside
private boolean symbolAddedInside
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Method Detail
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addSymbolRenderer
public void addSymbolRenderer(IRenderer symbolRenderer, float symbolAreaWidth)
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layout
public LayoutResult layout(LayoutContext layoutContext)
Description copied from class:BlockRenderer
This method simulates positioning of the renderer, including all of its children, and returns theLayoutResult
, representing the layout result, including occupied area, status, i.e. if there was enough place to fit the renderer subtree, etc.LayoutResult
can be extended to return custom layout results for custom elements, e.g.TextRenderer
usesTextLayoutResult
as its result. This method can be called standalone to learn how much area the renderer subtree needs, or can be called beforeIRenderer.draw(DrawContext)
, to prepare the renderer to be flushed to the output stream.- Specified by:
layout
in interfaceIRenderer
- Overrides:
layout
in classBlockRenderer
- Parameters:
layoutContext
- the description of layout area and any other additional information- Returns:
- result of the layout process
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draw
public void draw(DrawContext drawContext)
Description copied from class:AbstractRenderer
Flushes the renderer subtree contents, i.e. draws itself on canvas, adds necessary objects to thePdfDocument
etc.- Specified by:
draw
in interfaceIRenderer
- Overrides:
draw
in classBlockRenderer
- Parameters:
drawContext
- contains thePdfDocument
to which the renderer subtree if flushed, thePdfCanvas
on which the renderer subtree is drawn and other additional parameters needed to perform drawing
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getNextRenderer
public IRenderer getNextRenderer()
Description copied from class:DivRenderer
Gets a new instance of this class to be used as a next renderer, after this renderer is used, ifBlockRenderer.layout(LayoutContext)
is called more than once.If a renderer overflows to the next area, iText uses this method to create a renderer for the overflow part. So if one wants to extend
DivRenderer
, one should override this method: otherwise the default method will be used and thus the default rather than the custom renderer will be created.- Specified by:
getNextRenderer
in interfaceIRenderer
- Overrides:
getNextRenderer
in classDivRenderer
- Returns:
- new renderer instance
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createSplitRenderer
protected AbstractRenderer createSplitRenderer(int layoutResult)
Description copied from class:BlockRenderer
Creates a split renderer.- Overrides:
createSplitRenderer
in classBlockRenderer
- Parameters:
layoutResult
- the result of content layouting- Returns:
- a new
AbstractRenderer
instance
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createOverflowRenderer
protected AbstractRenderer createOverflowRenderer(int layoutResult)
Description copied from class:BlockRenderer
Creates an overflow renderer.- Overrides:
createOverflowRenderer
in classBlockRenderer
- Parameters:
layoutResult
- the result of content layouting- Returns:
- a new
AbstractRenderer
instance
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applyListSymbolPosition
private void applyListSymbolPosition()
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renderSymbolInNeutralParagraph
private IRenderer renderSymbolInNeutralParagraph()
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isListSymbolEmpty
private boolean isListSymbolEmpty(IRenderer listSymbolRenderer)
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calculateAscenderDescender
private float[] calculateAscenderDescender()
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