org.compiere.apps.graph
Class GraphUtil

java.lang.Object
  org.compiere.apps.graph.GraphUtil

public class GraphUtil
extends Object

Graphic Utilities

Version:

$Id: GraphUtil.java,v 1.3 2006/07/30 00:51:28 jjanke Exp $

Author:

Jorg Janke

Constructor Summary

GraphUtil()

Method Summary

static Color	brighter(Color color, double factor) Get brighter color
static double	colorDistance(double r1, double g1, double b1, double r2, double g2, double b2) Simple Color Distance
static Color	darker(Color color, double factor) Get darker color
static Color	getBackground(int index) Get Column Background
static Color	getForeground(Color background) Get Foreground for back
static boolean	isDark(Color color) Is the Color dark?
static boolean	isDark(double r, double g, double b) Is Color more white or black?

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphUtil

public GraphUtil()

Method Detail

getForeground

public static Color getForeground(Color background)

Get Foreground for back

Parameters:

background - back

Returns:

while or black

getBackground

public static Color getBackground(int index)

Get Column Background

Parameters:

index - index

Returns:

random color

isDark

public static boolean isDark(Color color)

Is the Color dark?

Parameters:

color - color

Returns:

true if dark

isDark

public static boolean isDark(double r,
                             double g,
                             double b)

Is Color more white or black?

Parameters:

r - red

g - green

b - blue

Returns:

true if dark

colorDistance

public static double colorDistance(double r1,
                                   double g1,
                                   double b1,
                                   double r2,
                                   double g2,
                                   double b2)

Simple Color Distance. (3d point distance)

Parameters:

r1 - first red

g1 - first green

b1 - first blue

r2 - second red

g2 - second green

b2 - second blue

Returns:

3d distance for relative comparison

darker

public static Color darker(Color color,
                           double factor)

Get darker color

Parameters:

color - color

factor - factor 0..1 (AWT 0.7) the smaller, the darker

Returns:

darker color

brighter

public static Color brighter(Color color,
                             double factor)

Get brighter color

Parameters:

color - color

factor - factor 0..1 (AWT 0.7) the smaller, the lighter

Returns:

brighter color