org.jhotdraw.color
Class ColorWheelImageProducer

java.lang.Object
  java.awt.image.MemoryImageSource
      org.jhotdraw.color.ColorWheelImageProducer

All Implemented Interfaces:

java.awt.image.ImageProducer

Direct Known Subclasses:

HSLHarmonicColorWheelImageProducer, HSVHarmonicColorWheelImageProducer

public class ColorWheelImageProducer
extends java.awt.image.MemoryImageSource

Produces the image of a ColorWheel.

Version:

$Id: ColorWheelImageProducer.java 527 2009-06-07 14:28:19Z rawcoder $

Author:

Werner Randelshofer

See Also:

JColorWheel

Field Summary

protected int[]	alphas Lookup table for alphas.
protected int	angularIndex
protected float[]	angulars Lookup table for angular component values.
protected ColorSystem	colorSystem
protected int	h
protected boolean	isLookupValid
protected boolean	isPixelsValid
protected int[]	pixels
protected int	radialIndex
protected float[]	radials Lookup table for radial component values.
protected int	verticalIndex
protected float	verticalValue
protected int	w

Constructor Summary

ColorWheelImageProducer(ColorSystem sys, int w, int h)
Creates a new instance.

Method Summary

void	generateColorWheel()
protected void	generateLookupTables()
protected float[]	getColorAt(int x, int y, int width, int height)
protected java.awt.Point	getColorLocation(java.awt.Color c, int width, int height)
protected java.awt.Point	getColorLocation(CompositeColor c, int width, int height)
protected java.awt.Point	getColorLocation(float[] components, int width, int height)
protected java.awt.Point	getColorLocation(float hue, float saturation, float brightness, int width, int height)
int	getRadius()
boolean	needsGeneration()
void	regenerateColorWheel()
void	setAngularComponentIndex(int newValue)
void	setRadialComponentIndex(int newValue)
void	setVerticalComponentIndex(int newValue)
void	setVerticalValue(float newValue)

Methods inherited from class java.awt.image.MemoryImageSource

addConsumer, isConsumer, newPixels, newPixels, newPixels, newPixels, newPixels, removeConsumer, requestTopDownLeftRightResend, setAnimated, setFullBufferUpdates, startProduction

Methods inherited from class java.lang.Object

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

Field Detail

pixels

protected int[] pixels

w

protected int w

h

protected int h

verticalValue

protected float verticalValue

isLookupValid

protected boolean isLookupValid

isPixelsValid

protected boolean isPixelsValid

angulars

protected float[] angulars

Lookup table for angular component values.

radials

protected float[] radials

Lookup table for radial component values.

alphas

protected int[] alphas

Lookup table for alphas. The alpha value is used for antialiasing the color wheel.

colorSystem

protected ColorSystem colorSystem

radialIndex

protected int radialIndex

angularIndex

protected int angularIndex

verticalIndex

protected int verticalIndex

Constructor Detail

ColorWheelImageProducer

public ColorWheelImageProducer(ColorSystem sys,
                               int w,
                               int h)

Creates a new instance.

Method Detail

getRadius

public int getRadius()

setRadialComponentIndex

public void setRadialComponentIndex(int newValue)

setAngularComponentIndex

public void setAngularComponentIndex(int newValue)

setVerticalComponentIndex

public void setVerticalComponentIndex(int newValue)

generateLookupTables

protected void generateLookupTables()

setVerticalValue

public void setVerticalValue(float newValue)

needsGeneration

public boolean needsGeneration()

regenerateColorWheel

public void regenerateColorWheel()

generateColorWheel

public void generateColorWheel()

getColorLocation

protected java.awt.Point getColorLocation(java.awt.Color c,
                                          int width,
                                          int height)

getColorLocation

protected java.awt.Point getColorLocation(float hue,
                                          float saturation,
                                          float brightness,
                                          int width,
                                          int height)

getColorLocation

protected java.awt.Point getColorLocation(CompositeColor c,
                                          int width,
                                          int height)

getColorLocation

protected java.awt.Point getColorLocation(float[] components,
                                          int width,
                                          int height)

getColorAt

protected float[] getColorAt(int x,
                             int y,
                             int width,
                             int height)