com.itextpdf.layout.renderer

Class ParagraphRenderer

java.lang.Object

com.itextpdf.layout.renderer.AbstractRenderer

com.itextpdf.layout.renderer.BlockRenderer

com.itextpdf.layout.renderer.ParagraphRenderer

All Implemented Interfaces:

IPropertyContainer, IRenderer

public class ParagraphRenderer
extends BlockRenderer

Field Summary

Fields

Modifier and Type	Field and Description
protected List<LineRenderer>	lines
protected float	previousDescent

Fields inherited from class com.itextpdf.layout.renderer.AbstractRenderer

childRenderers, EPS, flushed, INF, isLastRendererForModelElement, modelElement, occupiedArea, parent, positionedRenderers, properties

Constructor Summary

Constructors

Constructor and Description
ParagraphRenderer(Paragraph modelElement)

Method Summary

Modifier and Type	Method and Description
protected ParagraphRenderer	createOverflowRenderer()
protected ParagraphRenderer	createSplitRenderer()
void	drawChildren(DrawContext drawContext) Performs the drawing operation for all children of this renderer.
<T1> T1	getDefaultProperty(int property) Gets the default property from this entity.
protected Float	getFirstYLineRecursively() Gets the first yLine of the nested children recursively.
IRenderer	getNextRenderer() Gets a new instance of this class to be used as a next renderer, after this renderer is used, if IRenderer.layout(LayoutContext) is called more than once.
LayoutResult	layout(LayoutContext layoutContext) This method simulates positioning of the renderer, including all of its children, and returns the LayoutResult, representing the layout result, including occupied area, status, i.e.
void	move(float dxRight, float dyUp) Moves the renderer subtree by the specified offset.
protected ParagraphRenderer[]	split()
String	toString()

Methods inherited from class com.itextpdf.layout.renderer.BlockRenderer

applyRotation, applyRotationLayout, applyVerticalAlignment, beginRotationIfApplied, createOverflowRenderer, createSplitRenderer, draw, endRotationIfApplied, getOccupiedAreaBBox

Methods inherited from class com.itextpdf.layout.renderer.AbstractRenderer

addAllProperties, addChild, alignChildHorizontally, applyAbsolutePositioningTranslation, applyAction, applyBorderBox, applyDestination, applyMargins, applyPaddings, deleteOwnProperty, deleteProperty, drawBackground, drawBorder, getBorderAreaBBox, getBorders, getChildRenderers, getInnerAreaBBox, getModelElement, getOccupiedArea, getOwnProperties, getOwnProperty, getProperty, getProperty, getPropertyAsBoolean, getPropertyAsColor, getPropertyAsFloat, getPropertyAsFont, getPropertyAsInteger, hasOwnProperty, hasProperty, initElementAreas, isFixedLayout, isFlushed, isNotFittingHeight, isPositioned, retrieveHeight, retrieveUnitValue, retrieveWidth, setBorders, setParent, setProperty

Methods inherited from class java.lang.Object

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

Field Detail

previousDescent

protected float previousDescent

lines

protected List<LineRenderer> lines

Constructor Detail

ParagraphRenderer

public ParagraphRenderer(Paragraph modelElement)

Method Detail

layout

public LayoutResult layout(LayoutContext layoutContext)

Description copied from interface: IRenderer

This method simulates positioning of the renderer, including all of its children, and returns the LayoutResult, 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 uses TextLayoutResult as its result. This method can be called standalone to learn how much area the renderer subtree needs, or can be called before IRenderer.draw(DrawContext), to prepare the renderer to be flushed to the output stream.

Specified by:

layout in interface IRenderer

Overrides:

layout in class BlockRenderer

Parameters:

layoutContext - the description of layout area and any other additional information

Returns:

result of the layout process

getNextRenderer

public IRenderer getNextRenderer()

Description copied from interface: IRenderer

Gets a new instance of this class to be used as a next renderer, after this renderer is used, if IRenderer.layout(LayoutContext) is called more than once.

Returns:

new renderer instance

getDefaultProperty

public <T1> T1 getDefaultProperty(int property)

Description copied from interface: IPropertyContainer

Gets the default property from this entity.

Specified by:

getDefaultProperty in interface IPropertyContainer

Overrides:

getDefaultProperty in class AbstractRenderer

Type Parameters:

T1 - the return type associated with the property

Parameters:

property - the property to be retrieved

Returns:

the default property value. If the default property is not defined, null will be returned

createOverflowRenderer

protected ParagraphRenderer createOverflowRenderer()

createSplitRenderer

protected ParagraphRenderer createSplitRenderer()

split

protected ParagraphRenderer[] split()

toString

public String toString()

Overrides:

toString in class AbstractRenderer

drawChildren

public void drawChildren(DrawContext drawContext)

Description copied from class: AbstractRenderer

Performs the drawing operation for all children of this renderer.

Overrides:

drawChildren in class AbstractRenderer

Parameters:

drawContext - the context (canvas, document, etc) of this drawing operation.

move

public void move(float dxRight,
                 float dyUp)

Description copied from interface: IRenderer

Moves the renderer subtree by the specified offset. This method affects occupied area of the renderer.

Specified by:

move in interface IRenderer

Overrides:

move in class AbstractRenderer

Parameters:

dxRight - the x-axis offset in points. Positive value will move the renderer subtree to the right.

dyUp - the y-axis offset in points. Positive value will move the renderer subtree to the top.

getFirstYLineRecursively

protected Float getFirstYLineRecursively()

Description copied from class: AbstractRenderer

Gets the first yLine of the nested children recursively. E.g. for a list, this will be the yLine of the first item (if the first item is indeed a paragraph). NOTE: this method will no go further than the first child. Returns null if there is no text found.

Overrides:

getFirstYLineRecursively in class AbstractRenderer