gnu.apdf

Class PDFShading

java.lang.Object

gnu.apdf.PDFObject

gnu.apdf.PDFStream

gnu.apdf.PDFShading

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

PDFShadingGouraudFreeform

public class PDFShading
extends PDFStream

Base class for PDF shading types.

Author:

jsevy

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
Color	backgroundColor
RectF	boundingBox
String	colorSpace
int	shadingType Required fields for any Shading

Constructor Summary

Constructors

Constructor and Description
PDFShading(int shadingType) Base class constructor for shading patterns; takes the shading type as argument: 1: Function-based shading 2: Axial shading 3: Radial shading 4: Free-form Gouraud-shaded triangle mesh 5: Lattice-form Gouraud-shaded triangle mesh 6: Coons patch mesh 7: Tensor-product patch mesh

Method Summary

Modifier and Type	Method and Description
void	write(OutputStream os) Writes the object to the output stream.
void	writeDictionary(OutputStream os) SUperclass method for shading patterns; should be called first in subclass method.

Methods inherited from class gnu.apdf.PDFStream

getDeflate, getOutputStream, getStream, getStreamDataString, getWriter, setDeflate, writeStream

Methods inherited from class gnu.apdf.PDFObject

getGeneration, getName, getPDFDocument, getSerialID, getType, setName, toArray, toString, writeEnd, writeStart

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

shadingType

public int shadingType

Required fields for any Shading

colorSpace

public String colorSpace

backgroundColor

public Color backgroundColor

boundingBox

public RectF boundingBox

Constructor Detail

PDFShading

public PDFShading(int shadingType)

Base class constructor for shading patterns; takes the shading type as argument:

• 1: Function-based shading
• 2: Axial shading
• 3: Radial shading
• 4: Free-form Gouraud-shaded triangle mesh
• 5: Lattice-form Gouraud-shaded triangle mesh
• 6: Coons patch mesh
• 7: Tensor-product patch mesh

Parameters:

shadingType -

Method Detail

writeDictionary

public void writeDictionary(OutputStream os)
                     throws IOException

SUperclass method for shading patterns; should be called first in subclass method. Writes the following to the stream: /ShadingType /ColorSpace /RGB

Parameters:

os -

Throws:

IOException

write

public void write(OutputStream os)
           throws IOException

Description copied from class: PDFObject

Writes the object to the output stream. This method must be overidden.

Note: It should not write any other objects, even if they are it's Kids, as they will be written by the calling routine.

Overrides:

write in class PDFStream

Parameters:

os - OutputStream to send the object to

Throws:

IOException - on error