C:/usr/local/lib/php/blueshoes-4.2/core/gfx/Bs_ColorCodes.class.phpandrej arn <andrej at blueshoes dot org>much of the following text comes from:http://www.w3schools.com/html/html_colors.asp[CSS] colors are defined using a hexadecimal notation for thecombination of Red, Green, and Blue color values (RGB). Thelowest value that can be given to one light source is 0 (hex #00).The highest value is 255 (hex #FF).A collection of color names are supported by newer versions of bothNetscape and Internet Explorer (and others).Note: Color names are not supported by the W3C standards. If you wantto write correct CSS you should use the Color HEX values.(as i read on http://www.w3.org/TR/REC-html40/types.html in thesection "6.5 Colors", the w3c supports 16 color names.)Web Safe ColorsA few years ago, when most computers supported only 256 different colors,a list of 216 Web Safe Colors was suggested as a Web standard. The reasonfor this was that Microsoft and Mac operating system used 40 different"reserved" fixed system colors (about 20 each).the case of hex numbers does not matter. FFFFFF and ffffff are both correct.by using hex color codes, you can produce more than 16 mio different colors.nowadays most monitors can handle that, altough some are still limited to16384 (or even 256).Black = "#000000" Green = "#008000"Silver = "#C0C0C0" Lime = "#00FF00"Gray = "#808080" Olive = "#808000"White = "#FFFFFF" Yellow = "#FFFF00"Maroon = "#800000" Navy = "#000080"Red = "#FF0000" Blue = "#0000FF"Purple = "#800080" Teal = "#008080"Fuchsia = "#FF00FF" Aqua = "#00FFFF"aqua black blue fuchsia green graylime maroon navy olive purple redsilver teal white yellow(defined in html 3.2)http://www.htmlgoodies.com/tutors/colors.htmldependencies: noneColorCodes class.4.0.$id$bs4.2blueshoes.orgconstructor(eg FFFFFF) return array (vector with 3 elements)converts a hex value to an rgb value.(vector with 3 elements) (eg FFFFFF)converts an rgb value to a hex value. (eg FFFFFF)bool FALSE (if the name is unknown)the color name from ie/ns are known (check the kb).note: 1) "Aqua" and "Cyan" produce the same color: 00FFFF2) "Fuchsia" and "Magenta" produce the same color: FF00FF3) "Gray" and "Grey" are both correct english (is one ukand one us?) but browsers only know the "Gray" version.so here it's the same.converts a color name to its hex color code.(hex, like 'FFFFFF') (TRUE=dark, FALSE=light)this can be used to define a foreground color on a givenbackground color. on dark bg's you need light foregroundcolors etc.some colors are somewhere in between. then it doesn'treally matter.the logic: (well check the source)tells if a color is dark or light. (vector)returns an array with the 216 websafe colors.(hex, like 'FFFFFF') (hex code)(hex, like 'FFFFFF')(uncluding) black and white.a color is gray if the red, green and blue values all are the same(you take the same amount of each color).examples: darkgray is A9A9A9black is 000000white is FFFFFFtells if the color specified is gray, that means somewhere between(hex, like 'FFFFFF') (hex color code)works, but could do better. the light thing is not perfect. check the source.converts a color to a gray scale color.with all the 216 websafe colors in it.returns rendered html code that displays an html table(hex, like 'FFFFFF')tells if the given color is websafe or not. (hex color code)the user may send us something like #ffffff, butwhat we want is FFFFFF, so uppercase and 6 chars.cleans a color code.already been done before.inits the static var $this->_webSafe if it has notalready been done before.inits the static var $this->_namedColors if it has not4.0.$x$isexisexceptiontostringtohtmlpersistunpersistbs_objectbbsetoutputbbawakebbisawakebbxmsgbbxfunctionstartbbxfunctionendbbxechobbxvarbbxvardumpbbforcetracebbbufferstartbbbuffergetbbbufferendflushbbbufferendcleanbs_object_versionBs_ObjectBs_Object