org.sejda.sambox.pdmodel.graphics.shading

Class RadialShadingContext

java.lang.Object

org.sejda.sambox.pdmodel.graphics.shading.ShadingContext

org.sejda.sambox.pdmodel.graphics.shading.RadialShadingContext

All Implemented Interfaces:

PaintContext

public class RadialShadingContext
extends ShadingContext
implements PaintContext

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

Author:

Shaola Ren

Constructor Summary

Constructors

Constructor and Description
RadialShadingContext(PDShadingType3 shading, ColorModel colorModel, AffineTransform xform, Matrix matrix, Rectangle deviceBounds) Constructor creates an instance to be used for fill operations.

Method Summary

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 java.lang.Object

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

Constructor Detail

RadialShadingContext

public RadialShadingContext(PDShadingType3 shading,
                            ColorModel colorModel,
                            AffineTransform xform,
                            Matrix matrix,
                            Rectangle deviceBounds)
                     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

matrix - the pattern matrix concatenated with that of the parent content stream

deviceBounds - the bounds of the area to paint, in device units

Throws:

IOException - if there is an error getting the color space or doing color conversion.

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.

getDomain

public float[] getDomain()

Returns the domain values.

getExtend

public boolean[] getExtend()

Returns the extend values.

getFunction

public PDFunction getFunction()
                       throws IOException

Returns the function.

Throws:

IOException - if we were not able to create the function.