org.apache.pdfbox.pdmodel.graphics.shading

Class PDShadingResources

java.lang.Object

org.apache.pdfbox.pdmodel.graphics.shading.PDShadingResources

All Implemented Interfaces:

COSObjectable

Direct Known Subclasses:

PDShadingType1, PDShadingType2, PDShadingType4, PDShadingType5

public abstract class PDShadingResources
extends Object
implements COSObjectable

This represents resources for a shading.

Version:

$Revision: 1.0 $

Field Summary

Fields

Modifier and Type	Field and Description
static int	SHADING_TYPE1 shading type 1 = function based shading.
static int	SHADING_TYPE2 shading type 2 = axial shading.
static int	SHADING_TYPE3 shading type 3 = radial shading.
static int	SHADING_TYPE4 shading type 4 = Free-Form Gouraud-Shaded Triangle Meshes.
static int	SHADING_TYPE5 shading type 5 = Lattice-Form Gouraud-Shaded Triangle Meshes.
static int	SHADING_TYPE6 shading type 6 = Coons Patch Meshes.
static int	SHADING_TYPE7 shading type 7 = Tensor-Product Patch Meshes.

Constructor Summary

Constructors

Constructor and Description
PDShadingResources() Default constructor.
PDShadingResources(COSDictionary shadingDictionary) Constructor using the given shading dictionary.

Method Summary

Methods

Modifier and Type	Method and Description
static PDShadingResources	create(COSDictionary resourceDictionary) Create the correct PD Model shading based on the COS base shading.
float[]	evalFunction(float inputValue) Convert the input value using the functions of the shading dictionary.
float[]	evalFunction(float[] input) Convert the input values using the functions of the shading dictionary.
boolean	getAntiAlias() This will return the AntiAlias value.
COSArray	getBackground() This will return the background.
PDRectangle	getBBox() An array of four numbers in the form coordinate system (see below), giving the coordinates of the left, bottom, right, and top edges, respectively, of the shadings's bounding box.
PDColorSpace	getColorSpace() This will get the color space or null if none exists.
COSDictionary	getCOSDictionary() This will get the underlying dictionary.
COSBase	getCOSObject() Convert this standard java object to a COS object.
PDFunction	getFunction() This will return the function used to convert the color values.
abstract int	getShadingType() This will return the shading type.
String	getType() This will return the type.
void	setAntiAlias(boolean antiAlias) This will set the AntiAlias value.
void	setBackground(COSArray newBackground) This will set the background.
void	setBBox(PDRectangle newBBox) This will set the BBox (bounding box) for this Shading.
void	setColorSpace(PDColorSpace newColorspace) This will set the color space for the shading.
void	setFunction(COSArray newFunctions) This will set the functions COSArray for the color conversion.
void	setFunction(PDFunction newFunction) This will set the function for the color conversion.
void	setShadingType(int shadingType) This will set the shading type.

Methods inherited from class java.lang.Object

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

Field Detail

SHADING_TYPE1

public static final int SHADING_TYPE1

shading type 1 = function based shading.

See Also:

Constant Field Values

SHADING_TYPE2

public static final int SHADING_TYPE2

shading type 2 = axial shading.

See Also:

Constant Field Values

SHADING_TYPE3

public static final int SHADING_TYPE3

shading type 3 = radial shading.

See Also:

Constant Field Values

SHADING_TYPE4

public static final int SHADING_TYPE4

shading type 4 = Free-Form Gouraud-Shaded Triangle Meshes.

See Also:

Constant Field Values

SHADING_TYPE5

public static final int SHADING_TYPE5

shading type 5 = Lattice-Form Gouraud-Shaded Triangle Meshes.

See Also:

Constant Field Values

SHADING_TYPE6

public static final int SHADING_TYPE6

shading type 6 = Coons Patch Meshes.

See Also:

Constant Field Values

SHADING_TYPE7

public static final int SHADING_TYPE7

shading type 7 = Tensor-Product Patch Meshes.

See Also:

Constant Field Values

Constructor Detail

PDShadingResources

public PDShadingResources()

Default constructor.

PDShadingResources

public PDShadingResources(COSDictionary shadingDictionary)

Constructor using the given shading dictionary.

Parameters:

shadingDictionary - The dictionary for this shading.

Method Detail

getCOSDictionary

public COSDictionary getCOSDictionary()

This will get the underlying dictionary.

Returns:

The dictionary for this shading.

getCOSObject

public COSBase getCOSObject()

Convert this standard java object to a COS object.

Specified by:

getCOSObject in interface COSObjectable

Returns:

The cos object that matches this Java object.

getType

public String getType()

This will return the type.

Returns:

The type of object that this is.

setShadingType

public void setShadingType(int shadingType)

This will set the shading type.

Parameters:

shadingType - The new shading type.

getShadingType

public abstract int getShadingType()

This will return the shading type.

Returns:

The shading type

setBackground

public void setBackground(COSArray newBackground)

This will set the background.

Parameters:

newBackground - The new background.

getBackground

public COSArray getBackground()

This will return the background.

Returns:

The background

getBBox

public PDRectangle getBBox()

An array of four numbers in the form coordinate system (see below), giving the coordinates of the left, bottom, right, and top edges, respectively, of the shadings's bounding box.

Returns:

The BBox of the form.

setBBox

public void setBBox(PDRectangle newBBox)

This will set the BBox (bounding box) for this Shading.

Parameters:

newBBox - The new BBox.

setAntiAlias

public void setAntiAlias(boolean antiAlias)

This will set the AntiAlias value.

Parameters:

antiAlias - The new AntiAlias value.

getAntiAlias

public boolean getAntiAlias()

This will return the AntiAlias value.

Returns:

The AntiAlias value

getColorSpace

public PDColorSpace getColorSpace()
                           throws IOException

This will get the color space or null if none exists.

Returns:

The color space for the shading.

Throws:

IOException - If there is an error getting the colorspace.

setColorSpace

public void setColorSpace(PDColorSpace newColorspace)

This will set the color space for the shading.

Parameters:

newColorspace - The color space

create

public static PDShadingResources create(COSDictionary resourceDictionary)
                                 throws IOException

Create the correct PD Model shading based on the COS base shading.

Parameters:

resourceDictionary - the COS shading dictionary

Returns:

the newly created shading resources object

Throws:

IOException - If we are unable to create the PDShading object.

setFunction

public void setFunction(PDFunction newFunction)

This will set the function for the color conversion.

Parameters:

newFunction - The new function.

setFunction

public void setFunction(COSArray newFunctions)

This will set the functions COSArray for the color conversion.

Parameters:

newFunctions - The new COSArray containing all functions.

getFunction

public PDFunction getFunction()
                       throws IOException

This will return the function used to convert the color values.

Returns:

The function

Throws:

IOException - If we are unable to create the PDFunction object.

evalFunction

public float[] evalFunction(float inputValue)
                     throws IOException

Convert the input value using the functions of the shading dictionary.

Parameters:

inputValue - the input value

Returns:

the output values

Throws:

IOException - thrown if something went wrong

evalFunction

public float[] evalFunction(float[] input)
                     throws IOException

Convert the input values using the functions of the shading dictionary.

Parameters:

input - the input values

Returns:

the output values

Throws:

IOException - thrown if something went wrong