Class PDFColorHandler

java.lang.Object

org.apache.fop.pdf.PDFColorHandler

public class PDFColorHandler
extends Object

This class handles the registration of color spaces and the generation of PDF code to select the right colors given a Color instance.

Field Summary

Fields

Modifier and Type	Field	Description
private Map<String, PDFCIELabColorSpace>	cieLabColorSpaces
private org.apache.commons.logging.Log	log
private PDFResourceContext	resourceContext
private PDFResources	resources

Constructor Summary

Constructors

Constructor	Description
PDFColorHandler(PDFResources resources, PDFResourceContext resourceContext)	Create a new instance for the given PDFResources

Method Summary

Modifier and Type	Method	Description
void	establishColor(StringBuffer codeBuffer, Color color, boolean fill, boolean alpha)	Generates code to select the given color and handles the registration of color spaces in PDF where necessary.
private void	establishColor(StringBuffer codeBuffer, PDFColorSpace pdfcs, Color color, boolean fill)
private boolean	establishColorFromColor(StringBuffer codeBuffer, Color color, boolean fill)
private void	establishDeviceCMYK(StringBuffer codeBuffer, Color color, boolean fill)
private void	establishDeviceRGB(StringBuffer codeBuffer, Color color, boolean fill, boolean alpha)
private PDFCIELabColorSpace	getCIELabColorSpace(org.apache.xmlgraphics.java2d.color.CIELabColorSpace labCS)
private PDFDocument	getDocument()
private PDFICCBasedColorSpace	getICCBasedColorSpace(ICC_ColorSpace cs)
private PDFSeparationColorSpace	getSeparationColorSpace(org.apache.xmlgraphics.java2d.color.NamedColorSpace cs)
private void	selectColorSpace(StringBuffer codeBuffer, PDFColorSpace pdfcs, boolean fill)
private void	writeAlpha(Color color, StringBuffer codeBuffer)
private void	writeColor(StringBuffer codeBuffer, float[] comps, int componentCount, String command)
private void	writeColor(StringBuffer codeBuffer, Color color, int componentCount, String command)

Methods inherited from class Object

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

Field Details

log

private org.apache.commons.logging.Log log

resources

private PDFResources resources

resourceContext

private PDFResourceContext resourceContext

cieLabColorSpaces

private Map<String, PDFCIELabColorSpace> cieLabColorSpaces

Constructor Details

PDFColorHandler

public PDFColorHandler(PDFResources resources,
 PDFResourceContext resourceContext)

Create a new instance for the given PDFResources

Parameters:

resources - the PDF resources

Method Details

getDocument

private PDFDocument getDocument()

establishColor

public void establishColor(StringBuffer codeBuffer,
 Color color,
 boolean fill,
 boolean alpha)

Generates code to select the given color and handles the registration of color spaces in PDF where necessary.

Parameters:

codeBuffer - the target buffer to receive the color selection code

color - the color

fill - true for fill color, false for stroke color

establishColorFromColor

private boolean establishColorFromColor(StringBuffer codeBuffer,
 Color color,
 boolean fill)

getICCBasedColorSpace

private PDFICCBasedColorSpace getICCBasedColorSpace(ICC_ColorSpace cs)

getSeparationColorSpace

private PDFSeparationColorSpace getSeparationColorSpace(org.apache.xmlgraphics.java2d.color.NamedColorSpace cs)

getCIELabColorSpace

private PDFCIELabColorSpace getCIELabColorSpace(org.apache.xmlgraphics.java2d.color.CIELabColorSpace labCS)

establishColor

private void establishColor(StringBuffer codeBuffer,
 PDFColorSpace pdfcs,
 Color color,
 boolean fill)

selectColorSpace

private void selectColorSpace(StringBuffer codeBuffer,
 PDFColorSpace pdfcs,
 boolean fill)

establishDeviceRGB

private void establishDeviceRGB(StringBuffer codeBuffer,
 Color color,
 boolean fill,
 boolean alpha)

writeAlpha

private void writeAlpha(Color color,
 StringBuffer codeBuffer)

establishDeviceCMYK

private void establishDeviceCMYK(StringBuffer codeBuffer,
 Color color,
 boolean fill)

writeColor

private void writeColor(StringBuffer codeBuffer,
 Color color,
 int componentCount,
 String command)

writeColor

private void writeColor(StringBuffer codeBuffer,
 float[] comps,
 int componentCount,
 String command)