Class ClipperBase

java.lang.Object

com.itextpdf.kernel.pdf.canvas.parser.clipper.ClipperBase

All Implemented Interfaces:

IClipper

Direct Known Subclasses:

DefaultClipper

public abstract class ClipperBase
extends Object
implements IClipper

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	ClipperBase.LocalMinima
protected class	ClipperBase.Scanbeam

Nested classes/interfaces inherited from interface IClipper

IClipper.ClipType, IClipper.Direction, IClipper.EndType, IClipper.IZFillCallback, IClipper.JoinType, IClipper.PolyFillType, IClipper.PolyType

Field Summary

Fields

Modifier and Type	Field	Description
protected ClipperBase.LocalMinima	currentLM
private final List<List<Edge>>	edges
protected boolean	hasOpenPaths
private static final long	HI_RANGE
private static final Logger	LOGGER
private static final long	LOW_RANGE
protected ClipperBase.LocalMinima	minimaList
protected final boolean	preserveCollinear
protected boolean	useFullRange

Fields inherited from interface IClipper

PRESERVE_COLINEAR, REVERSE_SOLUTION, STRICTLY_SIMPLE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ClipperBase(boolean preserveCollinear)

Method Summary

Modifier and Type	Method	Description
boolean	addPath(Path pg, IClipper.PolyType polyType, boolean Closed)
boolean	addPaths(Paths ppg, IClipper.PolyType polyType, boolean closed)
void	clear()
private void	disposeLocalMinimaList()
private static void	initEdge(Edge e, Edge eNext, Edge ePrev, Point.LongPoint pt)
private static void	initEdge2(Edge e, IClipper.PolyType polyType)
private void	insertLocalMinima(ClipperBase.LocalMinima newLm)
boolean	isPreserveCollinear()
protected static Path.OutRec	parseFirstLeft(Path.OutRec FirstLeft)
protected void	popLocalMinima()
private Edge	processBound(Edge e, boolean LeftBoundIsForward)
private static boolean	rangeTest(Point.LongPoint Pt, boolean useFullRange)
private static Edge	removeEdge(Edge e)
protected void	reset()

Methods inherited from class Object

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

Methods inherited from interface IClipper

execute, execute, execute, execute

Field Details

LOW_RANGE

private static final long LOW_RANGE

See Also:

• Constant Field Values

HI_RANGE

private static final long HI_RANGE

See Also:

• Constant Field Values

minimaList

protected ClipperBase.LocalMinima minimaList

currentLM

protected ClipperBase.LocalMinima currentLM

edges

private final List<List<Edge>> edges

useFullRange

protected boolean useFullRange

hasOpenPaths

protected boolean hasOpenPaths

preserveCollinear

protected final boolean preserveCollinear

LOGGER

private static final Logger LOGGER

Constructor Details

ClipperBase

protected ClipperBase(boolean preserveCollinear)

Method Details

initEdge

private static void initEdge(Edge e,
 Edge eNext,
 Edge ePrev,
 Point.LongPoint pt)

initEdge2

private static void initEdge2(Edge e,
 IClipper.PolyType polyType)

rangeTest

private static boolean rangeTest(Point.LongPoint Pt,
 boolean useFullRange)

removeEdge

private static Edge removeEdge(Edge e)

addPath

public boolean addPath(Path pg,
 IClipper.PolyType polyType,
 boolean Closed)

Specified by:

addPath in interface IClipper

addPaths

public boolean addPaths(Paths ppg,
 IClipper.PolyType polyType,
 boolean closed)

Specified by:

addPaths in interface IClipper

clear

public void clear()

Specified by:

clear in interface IClipper

disposeLocalMinimaList

private void disposeLocalMinimaList()

insertLocalMinima

private void insertLocalMinima(ClipperBase.LocalMinima newLm)

isPreserveCollinear

public boolean isPreserveCollinear()

popLocalMinima

protected void popLocalMinima()

processBound

private Edge processBound(Edge e,
 boolean LeftBoundIsForward)

parseFirstLeft

protected static Path.OutRec parseFirstLeft(Path.OutRec FirstLeft)

reset

protected void reset()