com.mxgraph.util

Class mxHtmlColor

java.lang.Object

com.mxgraph.util.mxHtmlColor

public class mxHtmlColor
extends java.lang.Object

Contains various helper methods for use with mxGraph.

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.util.HashMap<java.lang.String,java.awt.Color>	htmlColors HTML color lookup table.
protected static java.util.regex.Pattern	rgbRegex

Constructor Summary

Constructors

Constructor and Description
mxHtmlColor()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getHexColorString(java.awt.Color color) Returns a hex representation for the given color.
static java.lang.String	hexString(java.awt.Color color)
protected static float	parseAlpha(java.lang.String alpha)
static java.awt.Color	parseColor(java.lang.String str) Shortcut for parseColor with no transparency.
static java.awt.Color	parseColor(java.lang.String str, double alpha) Convert a string representing a 24/32bit hex color value into a Color object.
protected static double	parsePercent(java.lang.String perc)
protected static java.awt.Color	parseRgb(java.lang.String rgbString)
protected static float	parseValue(java.lang.String val, int max)

Methods inherited from class java.lang.Object

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

Field Detail

htmlColors

protected static java.util.HashMap<java.lang.String,java.awt.Color> htmlColors

HTML color lookup table. Supports the 147 CSS color names.

rgbRegex

protected static final java.util.regex.Pattern rgbRegex

Constructor Detail

mxHtmlColor

public mxHtmlColor()

Method Detail

hexString

public static java.lang.String hexString(java.awt.Color color)

getHexColorString

public static java.lang.String getHexColorString(java.awt.Color color)

Returns a hex representation for the given color.

Parameters:

color - Color to return the hex string for.

Returns:

Returns a hex string for the given color.

parseColor

public static java.awt.Color parseColor(java.lang.String str)
                                 throws java.lang.NumberFormatException

Shortcut for parseColor with no transparency.

Throws:

java.lang.NumberFormatException

parseColor

public static java.awt.Color parseColor(java.lang.String str,
                                        double alpha)
                                 throws java.lang.NumberFormatException

Convert a string representing a 24/32bit hex color value into a Color object. All 147 CSS color names and none are also supported. None returns null. Examples of possible hex color values are: #C3D9FF, #6482B9 and #774400, but note that you do not include the "#" in the string passed in

Parameters:

str - the 24/32bit hex string value (ARGB)

Returns:

java.awt.Color (24bit RGB on JDK 1.1, 24/32bit ARGB on JDK1.2)

Throws:

java.lang.NumberFormatException - if the specified string cannot be interpreted as a hexidecimal integer

parseRgb

protected static java.awt.Color parseRgb(java.lang.String rgbString)

parseValue

protected static float parseValue(java.lang.String val,
                                  int max)

parsePercent

protected static double parsePercent(java.lang.String perc)

parseAlpha

protected static float parseAlpha(java.lang.String alpha)