Package de.rototor.pdfbox.graphics2d

Class PdfBoxGraphics2DPaintApplier

java.lang.Object

de.rototor.pdfbox.graphics2d.PdfBoxGraphics2DPaintApplier

All Implemented Interfaces:

IPdfBoxGraphics2DPaintApplier

public class PdfBoxGraphics2DPaintApplier
extends Object
implements IPdfBoxGraphics2DPaintApplier

Default paint mapper.

NOTE: Objects of this class are stateful and *not* thread safe!

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	PdfBoxGraphics2DPaintApplier.COSResourceCacheBase<TObject extends org.apache.pdfbox.pdmodel.common.COSObjectable>
private final class	PdfBoxGraphics2DPaintApplier.CreateAlphaShadingMask
private static class	PdfBoxGraphics2DPaintApplier.ExtGStateCache
(package private) static class	PdfBoxGraphics2DPaintApplier.IdentityShadingMaskModifier
static class	PdfBoxGraphics2DPaintApplier.PaintApplierState	Internal State of the PaintApplyer.
private static class	PdfBoxGraphics2DPaintApplier.PDShadingCache
(package private) static interface	PdfBoxGraphics2DPaintApplier.ShadingMaskModifier

Nested classes/interfaces inherited from interface de.rototor.pdfbox.graphics2d.IPdfBoxGraphics2DPaintApplier

IPdfBoxGraphics2DPaintApplier.IPaintEnv

Field Summary

Fields

Modifier and Type	Field	Description
private Object	BATIK_COLORSPACE_LINEAR_RGB
private Object	BATIK_COLORSPACE_SRGB
private Object	BATIK_GRADIENT_NO_CYCLE
private Object	BATIK_GRADIENT_REFLECT
private Object	BATIK_GRADIENT_REPEAT
private static final double	EPSILON	Very small number, everything smaller than this is zero for us.
private final PdfBoxGraphics2DPaintApplier.ExtGStateCache	extGStateCache
private final PdfBoxGraphics2DPaintApplier.PDShadingCache	shadingCache

Constructor Summary

Constructors

Constructor	Description
PdfBoxGraphics2DPaintApplier()

Method Summary

Modifier and Type	Method	Description
protected void	applyAsStrokingColor(Color color, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private void	applyComposite(PdfBoxGraphics2DPaintApplier.PaintApplierState state)
protected org.apache.pdfbox.pdmodel.graphics.shading.PDShading	applyPaint(Paint paint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)	Apply paint and graphic state
org.apache.pdfbox.pdmodel.graphics.shading.PDShading	applyPaint(Paint paint, org.apache.pdfbox.pdmodel.PDPageContentStream contentStream, AffineTransform tf, IPdfBoxGraphics2DPaintApplier.IPaintEnv env)	Apply the paint on the ContentStream
private void	applyPatternPaint(Paint paint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private void	applyPdfBoxTilingPaint(Paint paint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private void	applyTexturePaint(TexturePaint texturePaint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private org.apache.pdfbox.pdmodel.graphics.shading.PDShading	buildGradientShading(GradientPaint gradientPaint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private org.apache.pdfbox.pdmodel.graphics.shading.PDShading	buildLinearGradientShading(Paint paint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private org.apache.pdfbox.pdmodel.graphics.shading.PDShading	buildRadialGradientShading(Paint paint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private org.apache.pdfbox.cos.COSArray	buildType2Functions(List<Color> colors, org.apache.pdfbox.cos.COSArray domain, org.apache.pdfbox.cos.COSArray encode, PdfBoxGraphics2DPaintApplier.PaintApplierState state)	Build a type2 function to interpolate between the given colors.
private org.apache.pdfbox.pdmodel.common.function.PDFunctionType3	buildType3Function(Color[] colors, float[] fractions, PdfBoxGraphics2DPaintApplier.PaintApplierState state)	Encode a color gradient as a type3 function
private Point2D	clonePoint(Point2D point2D)
private MultipleGradientPaint.ColorSpaceType	getColorSpaceType(Paint paint)
private MultipleGradientPaint.CycleMethod	getCycleMethod(Paint paint)	Map the cycleMethod of the GradientPaint to the java.awt.MultipleGradientPaint.CycleMethod enum.
protected static <T> T	getPropertyValue(Object obj, String propertyGetter)	Get a property value from an object using reflection
(package private) static boolean	haveColorsTransparency(Color[] colors)
private org.apache.pdfbox.pdmodel.graphics.shading.PDShading	importPDFBoxShadingPaint(org.apache.pdfbox.pdmodel.graphics.shading.ShadingPaint<?> paint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private org.apache.pdfbox.pdmodel.graphics.shading.PDShading	linearGradientObjectBoundingBoxShading(Paint paint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private org.apache.pdfbox.pdmodel.graphics.shading.PDShading	linearGradientUserSpaceOnUseShading(Paint paint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)	This is the default gradient mode for both SVG and java.awt gradients.
(package private) static PdfBoxGraphics2DColor	mapAlphaToGrayscale(Color c)
(package private) static PdfBoxGraphics2DColor[]	mapAlphaToGrayscale(Color[] colors)
private org.apache.pdfbox.pdmodel.graphics.color.PDColor	mapFirstColorOfGradient(PdfBoxGraphics2DPaintApplier.PaintApplierState state, Color[] colors)
private boolean	needBoundsKeyFrameEntry(float[] fractions)
private org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType3	setupBasicLinearShading(Paint paint, PdfBoxGraphics2DPaintApplier.PaintApplierState state)
private void	setupBatikReflectionAccess(Paint paint)
private org.apache.pdfbox.cos.COSArray	setupExtends()
private void	setupShadingCoords(org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType3 shading, Point2D startPoint, Point2D endPoint)

Methods inherited from class java.lang.Object

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

Field Details

extGStateCache

private final PdfBoxGraphics2DPaintApplier.ExtGStateCache extGStateCache

shadingCache

private final PdfBoxGraphics2DPaintApplier.PDShadingCache shadingCache

EPSILON

private static final double EPSILON

Very small number, everything smaller than this is zero for us.

See Also:

• Constant Field Values

BATIK_GRADIENT_NO_CYCLE

private Object BATIK_GRADIENT_NO_CYCLE

BATIK_GRADIENT_REFLECT

private Object BATIK_GRADIENT_REFLECT

BATIK_GRADIENT_REPEAT

private Object BATIK_GRADIENT_REPEAT

BATIK_COLORSPACE_SRGB

private Object BATIK_COLORSPACE_SRGB

BATIK_COLORSPACE_LINEAR_RGB

private Object BATIK_COLORSPACE_LINEAR_RGB

Constructor Details

PdfBoxGraphics2DPaintApplier

public PdfBoxGraphics2DPaintApplier()

Method Details

applyPaint

public org.apache.pdfbox.pdmodel.graphics.shading.PDShading applyPaint(Paint paint,
 org.apache.pdfbox.pdmodel.PDPageContentStream contentStream,
 AffineTransform tf,
 IPdfBoxGraphics2DPaintApplier.IPaintEnv env)
                                                                throws IOException

Description copied from interface: IPdfBoxGraphics2DPaintApplier

Apply the paint on the ContentStream

Specified by:

applyPaint in interface IPdfBoxGraphics2DPaintApplier

Parameters:

paint - the paint which should be applied

contentStream - the content stream to apply the paint on

tf - the current transform of the Graphics2D relative to the contentStream default coordinate space. This is always a copy of the current transform, so we can modify it.

env - Environment for mapping the paint.

Returns:

null or a PDShading which should be used to fill a shape.

Throws:

IOException - if its not possible to write the paint into the contentStream

applyAsStrokingColor

protected void applyAsStrokingColor(Color color,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                             throws IOException

Throws:

IOException

applyPaint

protected org.apache.pdfbox.pdmodel.graphics.shading.PDShading applyPaint(Paint paint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                                                                   throws IOException

Apply paint and graphic state

Throws:

IOException

importPDFBoxShadingPaint

private org.apache.pdfbox.pdmodel.graphics.shading.PDShading importPDFBoxShadingPaint(org.apache.pdfbox.pdmodel.graphics.shading.ShadingPaint<?> paint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                                                                               throws IOException

Throws:

IOException

applyPatternPaint

private void applyPatternPaint(Paint paint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                        throws IOException

Throws:

IOException

applyPdfBoxTilingPaint

private void applyPdfBoxTilingPaint(Paint paint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)

applyComposite

private void applyComposite(PdfBoxGraphics2DPaintApplier.PaintApplierState state)

clonePoint

private Point2D clonePoint(Point2D point2D)

haveColorsTransparency

static boolean haveColorsTransparency(Color[] colors)

buildLinearGradientShading

private org.apache.pdfbox.pdmodel.graphics.shading.PDShading buildLinearGradientShading(Paint paint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                                                                                 throws IOException

Throws:

IOException

linearGradientObjectBoundingBoxShading

private org.apache.pdfbox.pdmodel.graphics.shading.PDShading linearGradientObjectBoundingBoxShading(Paint paint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                                                                                             throws IOException

Throws:

IOException

setupShadingCoords

private void setupShadingCoords(org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType3 shading,
 Point2D startPoint,
 Point2D endPoint)

linearGradientUserSpaceOnUseShading

private org.apache.pdfbox.pdmodel.graphics.shading.PDShading linearGradientUserSpaceOnUseShading(Paint paint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                                                                                          throws IOException

This is the default gradient mode for both SVG and java.awt gradients.

Throws:

IOException

setupBasicLinearShading

private org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType3 setupBasicLinearShading(Paint paint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                                                                                   throws IOException

Throws:

IOException

mapFirstColorOfGradient

private org.apache.pdfbox.pdmodel.graphics.color.PDColor mapFirstColorOfGradient(PdfBoxGraphics2DPaintApplier.PaintApplierState state,
 Color[] colors)
                                                                          throws IOException

Throws:

IOException

setupExtends

private org.apache.pdfbox.cos.COSArray setupExtends()

getCycleMethod

private MultipleGradientPaint.CycleMethod getCycleMethod(Paint paint)

Map the cycleMethod of the GradientPaint to the java.awt.MultipleGradientPaint.CycleMethod enum.

Parameters:

paint - the paint to get the cycleMethod from (if not in any other way possible using reflection)

Returns:

the CycleMethod

getColorSpaceType

private MultipleGradientPaint.ColorSpaceType getColorSpaceType(Paint paint)

setupBatikReflectionAccess

private void setupBatikReflectionAccess(Paint paint)

buildRadialGradientShading

private org.apache.pdfbox.pdmodel.graphics.shading.PDShading buildRadialGradientShading(Paint paint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                                                                                 throws IOException

Throws:

IOException

mapAlphaToGrayscale

static PdfBoxGraphics2DColor mapAlphaToGrayscale(Color c)

mapAlphaToGrayscale

static PdfBoxGraphics2DColor[] mapAlphaToGrayscale(Color[] colors)

buildGradientShading

private org.apache.pdfbox.pdmodel.graphics.shading.PDShading buildGradientShading(GradientPaint gradientPaint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                                                                           throws IOException

Throws:

IOException

applyTexturePaint

private void applyTexturePaint(TexturePaint texturePaint,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)
                        throws IOException

Throws:

IOException

buildType3Function

private org.apache.pdfbox.pdmodel.common.function.PDFunctionType3 buildType3Function(Color[] colors,
 float[] fractions,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)

Encode a color gradient as a type3 function

Parameters:

colors - The colors to encode

fractions - the fractions for encoding

state - our state, this is needed for color mapping

Returns:

the type3 function

needBoundsKeyFrameEntry

private boolean needBoundsKeyFrameEntry(float[] fractions)

buildType2Functions

private org.apache.pdfbox.cos.COSArray buildType2Functions(List<Color> colors,
 org.apache.pdfbox.cos.COSArray domain,
 org.apache.pdfbox.cos.COSArray encode,
 PdfBoxGraphics2DPaintApplier.PaintApplierState state)

Build a type2 function to interpolate between the given colors.

Parameters:

colors - the color to encode

domain - the domain which should already been setuped. It will be used for the Type2 function

encode - will get the domain information per color channel, i.e. colors.length x [0, 1]

state - our internal state, this is needed for color mapping

Returns:

the Type2 function COSArray

getPropertyValue

protected static <T> T getPropertyValue(Object obj,
 String propertyGetter)

Get a property value from an object using reflection

Type Parameters:

T - the type of the property you want to get.

Parameters:

obj - The object to get a property from.

propertyGetter - method name of the getter, i.e. "getXY".

Returns:

the value read from the object