X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/8f248a36f10aa232551cac01a70bc44db68276a3..d7efdac99433a38f91de80792fc037351798b267:/termcol.plp

diff --git a/termcol.plp b/termcol.plp
index c564255..9411ba4 100644
--- a/termcol.plp
+++ b/termcol.plp
@@ -2,7 +2,7 @@
 
 Html({
 	title => 'terminal colour cheat sheet',
-	version => 'v1.0',
+	version => '1.0',
 	description => [
 		"Index of all terminal/console colour codes,",
 		"with an example result of various environments.",
@@ -10,18 +10,33 @@ Html({
 	keywords => [qw'
 		color code terminal console escape table xterm rxvt
 	'],
+	data => ['termcol.inc.pl'],
 	stylesheet => [qw'light dark'],
 });
 
 :>
 <h1>Terminal colours</h1>
 
+<p>
+<span title="ECMA-48">ANSI</span> (VT100, ISO-6429) 16-colour text palette
+as implemented by various systems and programs.
+<:
+print
+	!exists $get{v} ? 'Also see <a href="?v">8-bit legacy hardware</a> palettes.' :
+	'Also included are 8-bit legacy hardware palettes.';
+:>
+</p>
+
 <div class="section">
 <:
-use Shiar_Sheet::Colour;
+use Shiar_Sheet::Colour '1.03';
+use List::Util qw( min max );
+
+my $palettes = do 'termcol.inc.pl';
+die "Cannot open palette data: $_\n" for $@ || $! || ();
 
 sub colcell {
-	my $name = shift;
+	my $name = shift // return "<td colspan=3>\n";
 	my $col = Shiar_Sheet::Colour->new(@_);
 	my $minhex = $col->rgb24;
 	my $css     = '#' . $col->rgb48;
@@ -40,126 +55,138 @@ sub colcell {
 	return "$out\n";
 }
 
-my %col = (
-	-html => [
-		sprintf('<a title="%s" href="%s">html</a>',
-			'HTML keywords (inherited by CSS≥2.1 and SVG), mostly identical to X11',
-			'http://www.w3.org/TR/css3-color/#html4',
-		),
-		qw/black maroon green olive  navy purple  cyan silver
-		   gray  red    lime  yellow blue fuchsia aqua white/,
-		qw/reset bold dim italic underline blink fastblink
-		   reverse hidden/,
-	],
-	html => [
-		qw/000000 800000 008000 808000 000080 800080 008080 C0C0C0
-		   808080 FF0000 00FF00 FFFF00 0000FF FF00FF 00FFFF FFFFFF/,
-	],
-#	-cga => linux console, kde?
-	cga => [
-		qw/000000 AA0000 00AA00 AA5500 0000AA AA00AA 00AAAA AAAAAA
-		   555555 FF5555 55FF55 FFFF55 5555FF FF55FF 55FFFF FFFFFF/,
-	],
-#	-xterm => rxvt except for blues
-	xterm => [
-		qw/000000 CC0000 00CC00 CCCC00 4682B4 CC00CC 00CCCC E5E5E5
-		   4C4C4C FF0000 00FF00 FFFF00 1E90FF FF00FF 00FFFF FFFFFF/,
-	],
-#	-tango => default Gnome theme
-	tango => [
-		qw/2E3436 CC0000 4E9A06 C4A000 3465A4 75507B 06989A D3D7CF
-		   555753 EF2929 8AE234 FCE94F 729FCF AD7FA8 34E2E2 EEEEEC/,
-	],
-	-xkcd => [
-		sprintf('<a title="%s" href="%s">xkcd</a>',
-			'human averages in xkcd survey results',
-			'http://blog.xkcd.com/2010/05/03/color-survey-results/',
-		),
-		qw/black  maroon green  olive  navy   purple teal   silver
-		   grey   red    lime   yellow blue  fuchsia cyan   white/,
-	],
-	xkcd => [
-		qw/000000 650021 15b01a 6e750e 01153e 7e1e9c 029386 c5c9c7
-		   929591 e50000 aaff32 ffff14 0343df ed0dd9 00ffff ffffff/,
-	],
-	-android => [
-		sprintf('<a href="%s" title="%s">android</a>',
-			'http://developer.android.com/guide/practices/ui_guidelines/icon_design.html',
-			'recommended colour palette for Android icons',
-		),
-		qw/white  light  medium dark   black  blue1  blue2  blue3
-		   green1 green2 green3 orange1 orange2 orange3 red /,
-	],
-	android => [
-		qw/FFFFFF BFBFBF 808080 404040 000000 6699FF 3366CC 003399
-		   99CC33 00CC00 669933 FFCC00 FF9900 FF6600 CC0000 /,
-	],
-);
+if ($get{v}) {
+	my %reorder = (
+		arnegame => [ 0,5,9,12 , 3,6,10,13,1 , 4,7,8,11,14,15,2 ],
+		arnegame => [ 0,3,10,6,12,9,13,1 , 5,7,11,8,14,4,15,2 ],
+		c64 => [ 0,2,5,9,6,4,3,15 , 11,10,13,7,14,8,12,1 ],
+		msx2 => [ 0,6,2,10,4,13,7,14 , 1,8,3,11,5,9,12,15 ],
+		risc => [ 7,11,13,14,8,12,15,1, 6,5,10,9,4,3,2,0],
+		mac2 => [ 15,3,9,11,6,5,7,12 , 14,2,8,1,13,4,10,0 ],
+	);
+	$reorder{$_} = $reorder{msx2} for qw( msx1 arnejmp );
+	while (my ($name, $order) = each %reorder) {
+		for my $pal ( $palettes->{$name}) {
+			$pal = [ map { $pal->[$_ + 1] =~ s/:|$/:$_/r } -1, @{$order} ];
+		}
+	}
+}
+
+my @termlist = qw( cga xterm tango app html xkcd );
+push @termlist, qw( c64 msx2 mac2 risc arnegame ) if exists $get{v};
+for my $term (@termlist) {
+	my ($name, @index) = @{ $palettes->{$term} };
+	my $caption = $name // $term;
 
-for my $term (qw/cga xterm tango html xkcd/) {
 	print '<table>', "\n";
-	printf "<caption>%s</caption>\n", $col{"-$term"}[0] || $term;
-	for my $num (0 .. $#{ $col{$term} }) {
-		my $rgb = $col{$term}[$num];
-		my $name = $col{"-$term"}[$num + 1] || $num;
+	printf "<caption>%s</caption>\n", $caption;
+	for my $num (0 .. $#index) {
+		my ($rgb, $name) = split /:/, $index[$num], 3;
+		$name ||= $num;
 		$name = [ $name, ['#333'] ] if $term eq 'xkcd';
 		print '<tr>', colcell($name, $rgb);
 	}
 	print "</table>\n\n";
 }
+
+if (exists $get{v}) {
+	print "<table class=mapped>\n";
+	print "<caption>Amstrad CPC</caption>\n";
+	print coltable_hsv(3, sub {
+		$_[2] + 3 * ($_[0] + 3 * $_[1]),
+		map { $_ && $_ * 127 + 1 } @_
+	});
+	print "</table>\n\n";
+}
 :></div>
 
 <hr>
 
 <div class="section">
-<h2>88-colour space</h2>
 <:
-for my $r (0 .. 3) {
-	print '<table>';
-	for my $g (0 .. 3) {
-		print '<tr>';
-		for my $b (0 .. 3) {
-			my $index = $r*4*4 + $g*4 + $b + 16;
-			print colcell($index, map {(0, 139, 205, 255)[$_]} $r, $g, $b);
+sub coltable_hsv {
+	my ($dim, $rgbval, $greyramp) = @_;
+
+	my $hmax = 2 * $dim * 3;  # each face of the rgb cube
+	my $vmax = $dim - 1;
+	my $smax = $dim - 1;
+	$rgbval ||= sub { join('', @_), map { int $_ * 255 / $vmax } @_ };
+	$greyramp ||= [];
+
+	my %greymap;  # name => value
+	my @colmap;  # saturation => value => hue => [name, r,g,b]
+	my $offset = 16 * ($dim > 3);
+
+	for my $r (0 .. $dim - 1) {
+		for my $g (0 .. $dim - 1) {
+			for my $b (0 .. $dim - 1) {
+				my @rgb = ($r, $g, $b);
+
+				my $h = Shiar_Sheet::Colour->new(@rgb)->hue * $hmax;
+				my $v = max(@rgb);
+				my $s = abs(min(@rgb) - max(@rgb));
+
+				if (!$s) {
+					my ($index, $l) = $rgbval->(@rgb);
+					$greymap{$index} = $l;
+					next;
+				}
+
+				$v = $vmax - $v;
+				$s = $smax - $s - $v;
+
+				$colmap[$s][$v][$h] = [ $rgbval->(@rgb) ];
+			}
 		}
 	}
-	print "</table>\n";
-}
-print "\n";
 
-print '<table><tr>';
-print colcell(80+$_, (($_ + 2 + ($_>0)) * 255/11) x 3) for 0 .. 7;
-print "</table>\n\n";
+	my $out = '';
+	$out .= sprintf '<colgroup span=%d>', 3 * @{$_} for @colmap;
+	my $huerow = $colmap[0][0]; # first {$_} map { @{$_} } @colmap;
+	for my $h (grep { $huerow->[$_] } 0 .. $#{$huerow}) {
+		$out .= '<tr>';
+		$out .= colcell(@$_) for map { $_->[$h] } map { @{$_} } @colmap;
+	}
 
-:></div>
-<: if ($ENV{PATH_INFO} =~ /256/) { :>
-<hr>
+	$offset += $dim ** 3;
+	$greymap{$offset++} = $_ for @{$greyramp};
 
-<div class="section">
-<h2>256-colour space</h2>
-<:
-for my $r (0 .. 5) {
-	print '<table>';
-	for my $g (0 .. 5) {
-		print '<tr>';
-		for my $b (0 .. 5) {
-			my $index = $r*6*6 + $g*6 + $b + 16;
-			print colcell($index, map { $_ && $_*40 + 55 } $r, $g, $b);
-		}
+	$out .= '<tbody>';
+	my $col = 0;
+	my $colbreak = scalar map { @$_ } @colmap;  # same width as hue rows
+	for my $num (sort { $greymap{$a} <=> $greymap{$b} } keys %greymap) {
+		$out .= '<tr>' unless $col++ % $colbreak;
+		$out .= colcell($num, ($greymap{$num}) x 3);
 	}
-	print "</table>\n";
-}
-print "\n";
 
-	print '<table>';
-for my $row (0, 12) {
-	print '<tr>';
-	print colcell(232+$_, ($_*10 + 8) x 3) for $row .. $row+11;
+	return $out;
 }
+
+{
+	print "<h2>88-colour space</h2>\n";
+	print "<table class=mapped>\n";
+	print coltable_hsv(4,
+		sub {
+			$_[2] + 4 * ($_[1] + 4 * $_[0]) + 16,
+			map { (0, 139, 205, 255)[$_] } @_
+		},
+		[map { ($_ + 2 + ($_>0)) * 255/11 } 0 .. 7],
+	);
 	print "</table>\n";
-print "\n";
+}
 
+if ($ENV{PATH_INFO} =~ /256/) {
+	print "<h2>256-colour space</h2>\n";
+	print "<table class=mapped>\n";
+	print coltable_hsv(6,
+		sub {
+			$_[2] + 6 * ($_[1] + 6 * $_[0]) + 16,
+			map { $_ && $_*40 + 55 } @_
+		},
+		[ map { $_ * 10 + 8 } 0 .. 23 ],
+	);
+	print "</table>\n";
+}
 :></div>
-<: } :>
 <hr>