Package com.itextpdf.svg.renderers.impl

Class TextSvgBranchRenderer

java.lang.Object

com.itextpdf.svg.renderers.impl.AbstractSvgNodeRenderer

com.itextpdf.svg.renderers.impl.TextSvgBranchRenderer

All Implemented Interfaces:

ISvgTextNodeRenderer, ISvgNodeRenderer

Direct Known Subclasses:

TextSvgTSpanBranchRenderer

public class TextSvgBranchRenderer
extends AbstractSvgNodeRenderer
implements ISvgTextNodeRenderer

ISvgNodeRenderer implementation for the <text> and <tspan> tag.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	TextSvgBranchRenderer.ClippedElementDrawer

Nested classes/interfaces inherited from class com.itextpdf.svg.renderers.impl.AbstractSvgNodeRenderer

AbstractSvgNodeRenderer.FillProperties, AbstractSvgNodeRenderer.StrokeProperties

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.List<ISvgTextNodeRenderer>	children
private boolean	moveResolved
private Rectangle	objectBoundingBox
private Paragraph	paragraph
protected boolean	performRootTransformations	Deprecated.
private boolean	posResolved
protected static AffineTransform	TEXTFLIP	Top level transformation to flip the y-axis results in the character glyphs being mirrored, this tf corrects for this behaviour
private boolean	whiteSpaceProcessed
private float	xMove
private float[]	xPos
private float	yMove
private float[]	yPos

Fields inherited from class com.itextpdf.svg.renderers.impl.AbstractSvgNodeRenderer

attributesAndStyles, doFill, doStroke

Constructor Summary

Constructors

Constructor	Description
TextSvgBranchRenderer()	Creates new TextSvgBranchRenderer instance.

Method Summary

Modifier and Type	Method	Description
void	addChild(ISvgTextNodeRenderer child)	Adds a child to the current TextSvgBranchRenderer renderer.
(package private) void	addTextChild(Text text, SvgDrawContext drawContext)
(package private) void	applyFillAndStrokeProperties(AbstractSvgNodeRenderer.FillProperties fillProperties, AbstractSvgNodeRenderer.StrokeProperties strokeProperties, SvgDrawContext context)
(package private) void	applyFontProperties(IElement element, SvgDrawContext context)
private void	applyTextAnchor()
private void	applyTextAnchor(java.lang.String textAnchorValue, boolean isRtl)
(package private) void	applyTextRenderingMode(IElement element)
private void	collectChildren(java.util.List<ISvgTextNodeRenderer> children)
boolean	containsAbsolutePositionChange()	This method is deprecated and will be replaced with new signature containsAbsolutePositionChange(SvgDrawContext).
boolean	containsAbsolutePositionChange(SvgDrawContext context)	Checks whether current <text> or <tspan> element contains absolute position attributes.
boolean	containsRelativeMove()	Deprecated.
boolean	containsRelativeMove(SvgDrawContext context)	Checks whether current <text> or <tspan> element contains relative position change.
ISvgNodeRenderer	createDeepCopy()	Creates a deep copy of this renderer, including it's subtree of children
private void	deepCopyChildren(TextSvgBranchRenderer deepCopy)
protected void	doDraw(SvgDrawContext context)	Method that will set properties to be inherited by this branch renderer's children and will iterate over all children in order to draw them.
private void	drawLastTextChunk(SvgDrawContext context)
(package private) void	fillCopy(TextSvgBranchRenderer copy)
float[][]	getAbsolutePositionChanges()	This method is deprecated and will be replaced with new signature getAbsolutePositionChanges(SvgDrawContext).
float[][]	getAbsolutePositionChanges(SvgDrawContext context)	Gets absolute position of the current <text> or <tspan> element.
java.util.List<ISvgTextNodeRenderer>	getChildren()	Retrieves a list of all children of the current TextSvgBranchRenderer renderer.
private static Rectangle	getCommonRectangleWithAnchor(Rectangle commonRect, Rectangle textChunkRect, float absoluteX, java.lang.String textAnchorValue)	Adjust absolutely positioned text chunk (shift it to the start of view port, apply text anchor) and merge it with the common text rectangle.
Rectangle	getObjectBoundingBox(SvgDrawContext context)	Calculates the current object bounding box.
private float[]	getPositionsFromString(java.lang.String rawValuesString, SvgDrawContext context, boolean isHorizontal)
float[]	getRelativeTranslation()	Deprecated.
float[]	getRelativeTranslation(SvgDrawContext context)	Gets relative translation of the current <text> or <tspan> element.
private Point	getStartPoint(SvgDrawContext context, Point basePoint)
float	getTextContentLength(float parentFontSize, PdfFont font)	Deprecated.
TextRectangle	getTextRectangle(SvgDrawContext context, Point startPoint)	Return the bounding rectangle of the text element.
private static AffineTransform	getTextTransform(float[][] absolutePositions, SvgDrawContext context)
void	markWhiteSpaceProcessed()	Marks white-space property as processed.
(package private) void	performDrawing(SvgDrawContext context)
(package private) void	preDraw(SvgDrawContext context)	Operations to perform before drawing an element.
private void	resolveAbsoluteTextPosition(SvgDrawContext context)
private void	resolveRelativeTextMove(SvgDrawContext context)
private void	startNewTextChunk(SvgDrawContext context, AffineTransform newTransform)

Methods inherited from class com.itextpdf.svg.renderers.impl.AbstractSvgNodeRenderer

applyNonScalingStrokeTransform, calculateViewPortTranslation, canConstructViewPort, canElementFill, deepCopyAttributesAndStyles, doStrokeOrFill, draw, getAttribute, getAttributeMapCopy, getAttributeOrDefault, getCurrentFontSize, getCurrentFontSize, getCurrentViewBox, getParent, getParentClipPath, isHidden, parseAbsoluteLength, parseHorizontalLength, parseVerticalLength, postDraw, retrieveAlignAndMeet, setAttribute, setAttributesAndStyles, setParent

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.itextpdf.svg.renderers.ISvgNodeRenderer

draw, getAttribute, getAttributeMapCopy, getParent, setAttribute, setAttributesAndStyles, setParent

Field Detail

TEXTFLIP

protected static final AffineTransform TEXTFLIP

Top level transformation to flip the y-axis results in the character glyphs being mirrored, this tf corrects for this behaviour

children

private final java.util.List<ISvgTextNodeRenderer> children

performRootTransformations

@Deprecated
protected boolean performRootTransformations

Deprecated.

paragraph

private Paragraph paragraph

objectBoundingBox

private Rectangle objectBoundingBox

moveResolved

private boolean moveResolved

xMove

private float xMove

yMove

private float yMove

posResolved

private boolean posResolved

xPos

private float[] xPos

yPos

private float[] yPos

whiteSpaceProcessed

private boolean whiteSpaceProcessed

Constructor Detail

TextSvgBranchRenderer

public TextSvgBranchRenderer()

Creates new TextSvgBranchRenderer instance.

Method Detail

createDeepCopy

public ISvgNodeRenderer createDeepCopy()

Description copied from interface: ISvgNodeRenderer

Creates a deep copy of this renderer, including it's subtree of children

Specified by:

createDeepCopy in interface ISvgNodeRenderer

Returns:

deep copy of this renderer

fillCopy

void fillCopy(TextSvgBranchRenderer copy)

addChild

public final void addChild(ISvgTextNodeRenderer child)

Adds a child to the current TextSvgBranchRenderer renderer.

Parameters:

child - ISvgTextNodeRenderer child to add

getChildren

public final java.util.List<ISvgTextNodeRenderer> getChildren()

Retrieves a list of all children of the current TextSvgBranchRenderer renderer.

Returns:

a list of ISvgTextNodeRenderer children

getTextContentLength

@Deprecated
public float getTextContentLength(float parentFontSize,
                                  PdfFont font)

Deprecated.

Description copied from interface: ISvgTextNodeRenderer

Gets text content length.

Specified by:

getTextContentLength in interface ISvgTextNodeRenderer

Parameters:

parentFontSize - parent font size

font - current font

Returns:

text content length

getRelativeTranslation

@Deprecated
public float[] getRelativeTranslation()

Deprecated.

Description copied from interface: ISvgTextNodeRenderer

This method is deprecated and will be replaced with new signature getRelativeTranslation(SvgDrawContext). This is needed because xMove/yMove can contain relative values, so SvgDrawContext is needed to resolve them.

Specified by:

getRelativeTranslation in interface ISvgTextNodeRenderer

Returns:

text relative translation

getRelativeTranslation

public float[] getRelativeTranslation(SvgDrawContext context)

Gets relative translation of the current <text> or <tspan> element.

Parameters:

context - current SvgDrawContext

Returns:

float array that contains relative dx and dy translations

containsRelativeMove

@Deprecated
public boolean containsRelativeMove()

Deprecated.

Description copied from interface: ISvgTextNodeRenderer

This method is deprecated and will be replaced with new signature containsRelativeMove(SvgDrawContext). This is needed because xMove/yMove can contain relative values, so SvgDrawContext is needed to resolve them.

Specified by:

containsRelativeMove in interface ISvgTextNodeRenderer

Returns:

true if there is a relative move, false otherwise

containsRelativeMove

public boolean containsRelativeMove(SvgDrawContext context)

Checks whether current <text> or <tspan> element contains relative position change.

Parameters:

context - current SvgDrawContext

Returns:

true is current element contains relative position, false otherwise

containsAbsolutePositionChange

public boolean containsAbsolutePositionChange()

Description copied from interface: ISvgTextNodeRenderer

This method is deprecated and will be replaced with new signature containsAbsolutePositionChange(SvgDrawContext). This is needed because x/y can contain relative values, so SvgDrawContext is needed to resolve them.

Specified by:

containsAbsolutePositionChange in interface ISvgTextNodeRenderer

Returns:

true if an absolute position is specified via x/y attributes, false otherwise

containsAbsolutePositionChange

public boolean containsAbsolutePositionChange(SvgDrawContext context)

Checks whether current <text> or <tspan> element contains absolute position attributes.

Parameters:

context - current SvgDrawContext

Returns:

true is current element contains absolute position, false otherwise

getAbsolutePositionChanges

public float[][] getAbsolutePositionChanges()

Description copied from interface: ISvgTextNodeRenderer

This method is deprecated and will be replaced with new signature getAbsolutePositionChanges(SvgDrawContext). This is needed because x/y can contain relative values, so SvgDrawContext is needed to resolve them.

Specified by:

getAbsolutePositionChanges in interface ISvgTextNodeRenderer

Returns:

text absolute position

getAbsolutePositionChanges

public float[][] getAbsolutePositionChanges(SvgDrawContext context)

Gets absolute position of the current <text> or <tspan> element.

Parameters:

context - current SvgDrawContext

Returns:

float array that contains absolute x and y positions as either single item arrays or null if attribute is not present

markWhiteSpaceProcessed

public void markWhiteSpaceProcessed()

Marks white-space property as processed.

getTextRectangle

public TextRectangle getTextRectangle(SvgDrawContext context,
                                      Point startPoint)

Description copied from interface: ISvgTextNodeRenderer

Return the bounding rectangle of the text element.

Specified by:

getTextRectangle in interface ISvgTextNodeRenderer

Parameters:

context - current SvgDrawContext

startPoint - end point of previous text element

Returns:

created instance of TextRectangle

getObjectBoundingBox

public Rectangle getObjectBoundingBox(SvgDrawContext context)

Description copied from interface: ISvgNodeRenderer

Calculates the current object bounding box.

Specified by:

getObjectBoundingBox in interface ISvgNodeRenderer

Parameters:

context - the current context, for instance it contains current viewport and available font data

Returns:

the Rectangle representing the current object's bounding box, or null if bounding box is undefined

preDraw

void preDraw(SvgDrawContext context)

Description copied from class: AbstractSvgNodeRenderer

Operations to perform before drawing an element. This includes setting stroke color and width, fill color.

Overrides:

preDraw in class AbstractSvgNodeRenderer

Parameters:

context - the svg draw context

doDraw

protected void doDraw(SvgDrawContext context)

Method that will set properties to be inherited by this branch renderer's children and will iterate over all children in order to draw them.

Specified by:

doDraw in class AbstractSvgNodeRenderer

Parameters:

context - the object that knows the place to draw this element and maintains its state

applyFontProperties

void applyFontProperties(IElement element,
                         SvgDrawContext context)

applyTextRenderingMode

void applyTextRenderingMode(IElement element)

addTextChild

void addTextChild(Text text,
                  SvgDrawContext drawContext)

performDrawing

void performDrawing(SvgDrawContext context)

startNewTextChunk

private void startNewTextChunk(SvgDrawContext context,
                               AffineTransform newTransform)

drawLastTextChunk

private void drawLastTextChunk(SvgDrawContext context)

applyFillAndStrokeProperties

void applyFillAndStrokeProperties(AbstractSvgNodeRenderer.FillProperties fillProperties,
                                  AbstractSvgNodeRenderer.StrokeProperties strokeProperties,
                                  SvgDrawContext context)

Overrides:

applyFillAndStrokeProperties in class AbstractSvgNodeRenderer

resolveRelativeTextMove

private void resolveRelativeTextMove(SvgDrawContext context)

resolveAbsoluteTextPosition

private void resolveAbsoluteTextPosition(SvgDrawContext context)

getPositionsFromString

private float[] getPositionsFromString(java.lang.String rawValuesString,
                                       SvgDrawContext context,
                                       boolean isHorizontal)

getTextTransform

private static AffineTransform getTextTransform(float[][] absolutePositions,
                                                SvgDrawContext context)

getCommonRectangleWithAnchor

private static Rectangle getCommonRectangleWithAnchor(Rectangle commonRect,
                                                      Rectangle textChunkRect,
                                                      float absoluteX,
                                                      java.lang.String textAnchorValue)

Adjust absolutely positioned text chunk (shift it to the start of view port, apply text anchor) and merge it with the common text rectangle.

Parameters:

commonRect - rectangle for the whole text tag

textChunkRect - rectangle for the last absolutely positioned text chunk

absoluteX - last absolute x position

textAnchorValue - text anchor for the last text chunk

Returns:

merged common text rectangle

deepCopyChildren

private void deepCopyChildren(TextSvgBranchRenderer deepCopy)

applyTextAnchor

private void applyTextAnchor()

applyTextAnchor

private void applyTextAnchor(java.lang.String textAnchorValue,
                             boolean isRtl)

getStartPoint

private Point getStartPoint(SvgDrawContext context,
                            Point basePoint)

collectChildren

private void collectChildren(java.util.List<ISvgTextNodeRenderer> children)