org.apache.pdfbox.pdmodel.graphics.shading

Class AxialShadingContext

java.lang.Object

org.apache.pdfbox.pdmodel.graphics.shading.ShadingContext

org.apache.pdfbox.pdmodel.graphics.shading.AxialShadingContext

All Implemented Interfaces:

PaintContext

public class AxialShadingContext
extends ShadingContext
implements PaintContext

AWT PaintContext for axial shading. Performance improvement done as part of GSoC2014, Tilman Hausherr is the mentor.

Author:

Andreas Lehmkühler, Shaola Ren

Field Summary

Fields inherited from class org.apache.pdfbox.pdmodel.graphics.shading.ShadingContext

bboxRect, colorSpace, deviceBounds, maxBBoxX, maxBBoxY, minBBoxX, minBBoxY, outputColorModel, shading, shadingColorSpace, shadingTinttransform

Constructor Summary

Constructors

Constructor and Description
AxialShadingContext(PDShadingType2 shading, ColorModel colorModel, AffineTransform xform, Matrix ctm, int pageHeight, Rectangle dBounds) Constructor creates an instance to be used for fill operations.

Method Summary

Methods

Modifier and Type	Method and Description
void	dispose()
ColorModel	getColorModel()
float[]	getCoords() Returns the coords values.
float[]	getDomain() Returns the domain values.
boolean[]	getExtend() Returns the extend values.
PDFunction	getFunction() Returns the function.
Raster	getRaster(int x, int y, int w, int h)

Methods inherited from class org.apache.pdfbox.pdmodel.graphics.shading.ShadingContext

convertToRGB, getShadingTintTransform

Methods inherited from class java.lang.Object

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

Constructor Detail

AxialShadingContext

public AxialShadingContext(PDShadingType2 shading,
                   ColorModel colorModel,
                   AffineTransform xform,
                   Matrix ctm,
                   int pageHeight,
                   Rectangle dBounds)
                    throws IOException

Constructor creates an instance to be used for fill operations.

Parameters:

shading - the shading type to be used

colorModel - the color model to be used

xform - transformation for user to device space

ctm - the transformation matrix

pageHeight - height of the current page

dBounds - device bounds

Throws:

IOException

Method Detail

dispose

public void dispose()

Specified by:

dispose in interface PaintContext

getColorModel

public ColorModel getColorModel()

Specified by:

getColorModel in interface PaintContext

getRaster

public Raster getRaster(int x,
               int y,
               int w,
               int h)

Specified by:

getRaster in interface PaintContext

getCoords

public float[] getCoords()

Returns the coords values.

Returns:

the coords values as array

getDomain

public float[] getDomain()

Returns the domain values.

Returns:

the domain values as array

getExtend

public boolean[] getExtend()

Returns the extend values.

Returns:

the extend values as array

getFunction

public PDFunction getFunction()
                       throws IOException

Returns the function.

Returns:

the function

Throws:

IOException - if something goes wrong