Package org.apache.fop.render.rtf.rtflib.rtfdoc

Class RtfColorTable

java.lang.Object

org.apache.fop.render.rtf.rtflib.rtfdoc.RtfColorTable

public final class RtfColorTable
extends Object

Singelton of the RTF color table. This class was created for fo:basic-link tag processing. This work was originally authored by Andreas Putz

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	BLUE
private Hashtable	colorIndex	Index table for the colors
private Vector	colorTable	Used colors to this vector
private static final int	GREEN
private static RtfColorTable	instance	Singelton instance
private Hashtable	namedColors	Map of color names to color numbers
private static final int	RED

Constructor Summary

Constructors

Modifier	Constructor	Description
private	RtfColorTable()	Constructor.

Method Summary

Modifier and Type	Method	Description
private void	addColor(Integer i)	Adds a color to the table.
private void	addNamedColor(String name, int colorNumber)	define a named color for getColorNumber(String)
private int	determineColorLevel(int identifier, int color)	Determines the color level from the identifier.
private int	determineIdentifier(int red, int green, int blue)	Determines a identifier for the color.
Integer	getColorNumber(int red, int green, int blue)	Gets the number of color in the color table
Integer	getColorNumber(String name)
static RtfColorTable	getInstance()	Singelton.
private void	init()	Initialize the color table.
void	writeColors(RtfHeader header)	Writes the color table in the header.

Methods inherited from class java.lang.Object

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

Field Details

RED

private static final int RED

See Also:

• Constant Field Values

GREEN

private static final int GREEN

See Also:

• Constant Field Values

BLUE

private static final int BLUE

See Also:

• Constant Field Values

instance

private static RtfColorTable instance

Singelton instance

colorIndex

private Hashtable colorIndex

Index table for the colors

colorTable

private Vector colorTable

Used colors to this vector

namedColors

private Hashtable namedColors

Map of color names to color numbers

Constructor Details

RtfColorTable

private RtfColorTable()

Constructor.

Method Details

getInstance

public static RtfColorTable getInstance()

Singelton.

Returns:

The instance of RTFColorTable

init

private void init()

Initialize the color table.

addNamedColor

private void addNamedColor(String name,
 int colorNumber)

define a named color for getColorNumber(String)

getColorNumber

public Integer getColorNumber(String name)

Parameters:

name - a named color

Returns:

the RTF number of a named color, or null if name not found

getColorNumber

public Integer getColorNumber(int red,
 int green,
 int blue)

Gets the number of color in the color table

Parameters:

red - Color level red

green - Color level green

blue - Color level blue

Returns:

The number of the color in the table

writeColors

public void writeColors(RtfHeader header)
                 throws IOException

Writes the color table in the header.

Parameters:

header - The header container to write in

Throws:

IOException - On error

addColor

private void addColor(Integer i)

Adds a color to the table.

Parameters:

i - Identifier of color

determineIdentifier

private int determineIdentifier(int red,
 int green,
 int blue)

Determines a identifier for the color.

Parameters:

red - Color level red

green - Color level green

blue - Color level blue

Returns:

Unique identifier of color

determineColorLevel

private int determineColorLevel(int identifier,
 int color)

Determines the color level from the identifier.

Parameters:

identifier - Unique color identifier

color - One of the bit moving constants

Returns:

Color level in byte size