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Rgb(3)		      User Contributed Perl Documentation		Rgb(3)

NAME
       Color::Rgb - Simple rgb.txt parsing class

REVISION
       $Revision: 1.4 $

SYNOPSIS
	   use Color::Rgb;
	   $rgb	= new Color::Rgb(rgb_txt=>'/usr/X11R6/lib/X11/rgb.txt');

	   @rgb	= $rgb->rgb('red');	       # returns 255, 0, 0
	   $red	= $rgb->rgb('red', ',');       # returns the above rgb list as
					       # comma separated string
	   $red_hex=$rgb->hex('red');	       # returns 'FF0000'
	   $red_hex=$rgb->hex('red', '#');     # returns '#FF0000'

	   $my_hex = $rgb->rgb2hex(255,0,0);   # returns 'FF0000'
	   $my_rgb = $rgb->hex2rgb('#FF0000'); # returns list of 255,0,0

DESCRIPTION
       Color::Rgb - simple rgb.txt parsing class.

METHODS
       o   "new([rgb_txt="$rgb_file])> - constructor. Returns a	Color::Rgb
	   object.  Optionally accepts a path to the rgb.txt file. If you omit
	   the file, it	will use the path in the $Color::Rgb::RGB_TXT
	   variable, which defaults to '/usr/X11R6/lib/X11/rgb.txt'. It	means,
	   instead of using rgb_txt=>''	option,	you could also set the value
	   of the $Color::Rgb::RGB_TXT variable	to the correct path before you
	   call	the new() constructor (but definitely after you	load the
	   Color::Rgb class with "use" or "require").

	   Note: If your system	does not provide with any rgb.txt file,
	   Color::Rgb distribution includes one	you can	use instead.

       o   "name2rgb($name [,$delimiter])" - returns list of numeric Red,
	   Green and Blue values for a $name delimited (optionally) by a
	   $delimiter .	$name is name of the color in the English language
	   (Ex., 'black', 'red', 'purple' etc.).

	   Examples:

	       my ($r, $g, $b) = $rgb->rgb('blue');	 # returns list: 00, 00, 255
	       my $string      = $rgb->rgb('blue', ','); # returns string: '00,00,255'

	   If name does	not exist in the rgb.txt file it will return undef.

       o   "name2hex($name [,$prefix])"	- similar to rgb($name)	method,	but
	   returns hexadecimal string representing red,	green and blue colors,
	   prefixed (optionally) with $prefix. If $name	does not exist in the
	   rgb.txt file	it will	return undef.

       o   "hex($name, [,$delimiter])" - alias to "name2hex()"

       o   "rgb($name, [,$delimiter])" - alias to "name2rgb()"

       o   "rgb2hex($r,	$g, $b [,$prefix])" - converts rgb value to
	   hexadecimal string.	This method has	nothing	to do with the rgb.txt
	   file, so none of the	arguments need to exist	in the file.

	   Examples:

	       @rgb = (128, 128, 128);		     # RGB representation of grey
	       $hex_grey = $rgb->rgb2hex(@rgb);	     # returns string 'C0C0C0'
	       $hex_grey = $rgb->rgb2hex(@rgb, '#'); # returns string '#C0C0C0'

       o   "hex2rgb('hex' [,$delim])" -	the opposite of	rgb2hex(): takes a
	   hexadecimal representation of a color and returns a numeric list of
	   Red,	Green and Blue.	If optional $delim delimiter is	present, it
	   returns the string of RGB colors delimited by the $delimiter.
	   Characters like '#' and '0x'	in the beginning of the	hexadecimal
	   value will be ignored. Examples:

	       $hex = '#00FF00';   # represents	blue

	       @rgb = $rgb->hex2rgb($hex);	      #returns list of 0, 255, 0
	       $rgb_string = $rgb->hex2rgb($hex,','); #returns string '0,255,0'

	   Note: hex2rgb() expects valid hexadecimal representation of a color
	   in 6	character long string. If not, it might	not work properly.

       o   "names([$pattern]" -	returns	a list of all the names	in the rgb.txt
	   file.  If $pattern is given as the first argument, it will return
	   only	the names matching the pattern.	Example:

	       @colors = $rgb->names;	      #	returns	all the	names

	       @gray_colors = $rgb->names('gray'); # returns list of all the names
						   # matching the word 'gray'
	   =back

CREDITS
       Following people	contributed to this library with their patches and/or
       bug reports. (list is in	chronological order)

       o   Marc-Olivier	BERNARD	<mob@kilargo.fr> notified of the warnings that
	   the library produced	while "warnings" pragma	enabled	and improper
	   parsed rgb values that contain single "0". This bug was fixed in
	   1.2

       o   Martin Herrmann <Martin-Herrmann@gmx.de> noticed a bug in rgb2hex()
	   method which	was failing if the blue	value was a single "0".	This
	   problem is fixed in 1.3

COPYRIGHT
       Color::Rgb is a free software and can be	modified and distributed under
       the same	terms as Perl itself.

AUTHOR
       Color::Rgb is maintained	by Sherzod B. Ruzmetov <sherzodr@cpan.org>.

SEE ALSO
       Color::Object

POD ERRORS
       Hey! The	above document had some	coding errors, which are explained
       below:

       Around line 310:
	   You forgot a	'=back'	before '=head1'

perl v5.32.1			  2002-10-23				Rgb(3)
NAME | REVISION | SYNOPSIS | DESCRIPTION | METHODS | CREDITS | COPYRIGHT | AUTHOR | SEE ALSO | POD ERRORS

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