org.icepdf.core.pobjects.graphics

Class ShadingType2Pattern

java.lang.Object

org.icepdf.core.pobjects.Dictionary

org.icepdf.core.pobjects.graphics.ShadingPattern

org.icepdf.core.pobjects.graphics.ShadingType2Pattern

All Implemented Interfaces:

Pattern

Direct Known Subclasses:

ShadingType1Pattern

public class ShadingType2Pattern
extends ShadingPattern

Type 2 (axial) shadings define colour blend that varies along a linear axis between two endpoints and extends indefinitely perpendicular to the that axis.

Since:

2.7

Author:

ICEsoft Technologies Inc.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.List	coords
protected java.util.List<java.lang.Number>	domain
protected java.util.List<java.lang.Boolean>	extend
protected Function[]	function

Fields inherited from class org.icepdf.core.pobjects.graphics.ShadingPattern

antiAlias, ANTIALIAS_KEY, background, BACKGROUND_KEY, bBox, BBOX_KEY, colorSpace, COLORSPACE_KEY, COORDS_KEY, DOMAIN_KEY, EXTEND_KEY, extGState, EXTGSTATE_KEY, FUNCTION_KEY, inited, matrix, MATRIX_KEY, PATTERN_TYPE_KEY, patternType, shading, SHADING_KEY, SHADING_PATTERN_TYPE_1, SHADING_PATTERN_TYPE_2, SHADING_PATTERN_TYPE_3, SHADING_PATTERN_TYPE_4, SHADING_PATTERN_TYPE_5, SHADING_PATTERN_TYPE_6, SHADING_TYPE_KEY, shadingType, type

Fields inherited from class org.icepdf.core.pobjects.Dictionary

entries, FORM_TYPE_KEY, isDeleted, isNew, LENGTH_KEY, library, SUBTYPE_KEY, TYPE_KEY

Fields inherited from interface org.icepdf.core.pobjects.graphics.Pattern

PATTERN_TYPE_SHADING, PATTERN_TYPE_TILING, TYPE_VALUE

Constructor Summary

Constructors

Constructor and Description
ShadingType2Pattern(Library library, java.util.HashMap entries)

Method Summary

Modifier and Type	Method and Description
protected java.awt.Color[]	calculateColorPoints(int numberOfPoints, java.awt.geom.Point2D.Float startPoint, java.awt.geom.Point2D.Float endPoint, float t0, float t1) Calculates x number of points on long the line defined by the start and end point.
protected float[]	calculateDomainEntries(int numberOfPoints, float t0, float t1) Calculate domain entries givent the number of point between t0 and t1
java.awt.Paint	getPaint() Gets the Paint object need to fill a shape etc.
void	init(GraphicsState graphicsState) Initialized shading dictionary attributes.
java.lang.String	toString() Returns a summary of the dictionary entries.

Methods inherited from class org.icepdf.core.pobjects.graphics.ShadingPattern

getBackground, getBBox, getColorSpace, getExtGState, getMatrix, getPatternType, getShadingPattern, getShadingPattern, getShadingType, getType, isAntiAlias, isInited, setMatrix, setParentGraphicState, setShading

Methods inherited from class org.icepdf.core.pobjects.Dictionary

getEntries, getFloat, getInt, getLibrary, getNumber, getObject, getPObjectReference, init, isDeleted, isNew, setDeleted, setNew, setPObjectReference

Methods inherited from class java.lang.Object

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

Field Detail

function

protected Function[] function

domain

protected java.util.List<java.lang.Number> domain

coords

protected java.util.List coords

extend

protected java.util.List<java.lang.Boolean> extend

Constructor Detail

ShadingType2Pattern

public ShadingType2Pattern(Library library,
                           java.util.HashMap entries)

Method Detail

init

public void init(GraphicsState graphicsState)

Description copied from class: ShadingPattern

Initialized shading dictionary attributes. Discrepancies between sh and scn tokens cause us to handle initialization at a later time.

Specified by:

init in interface Pattern

Specified by:

init in class ShadingPattern

calculateColorPoints

protected java.awt.Color[] calculateColorPoints(int numberOfPoints,
                                                java.awt.geom.Point2D.Float startPoint,
                                                java.awt.geom.Point2D.Float endPoint,
                                                float t0,
                                                float t1)

Calculates x number of points on long the line defined by the start and end point.

Parameters:

numberOfPoints - number of points to generate.

startPoint - start of line segment.

endPoint - end of line segment.

Returns:

list of points found on line

calculateDomainEntries

protected float[] calculateDomainEntries(int numberOfPoints,
                                         float t0,
                                         float t1)

Calculate domain entries givent the number of point between t0 and t1

Parameters:

numberOfPoints - number of points to calculate

t0 - lower limit

t1 - upper limit

Returns:

array of floats the evenly divide t0 and t1, length is numberOfPoints + 1

getPaint

public java.awt.Paint getPaint()

Description copied from class: ShadingPattern

Gets the Paint object need to fill a shape etc. Each individual implementation will return a particular paint type.

Specified by:

getPaint in interface Pattern

Specified by:

getPaint in class ShadingPattern

Returns:

Paint type for fill.

toString

public java.lang.String toString()

Description copied from class: Dictionary

Returns a summary of the dictionary entries.

Overrides:

toString in class ShadingPattern

Returns:

dictionary values.