<:
-use Shiar_Sheet::Colour;
+use Shiar_Sheet::Colour 1.04;
+use List::Util qw( min max );
+use POSIX qw( ceil );
+
+my $palettes = Data('termcol');
sub colcell {
- my $name = shift;
+ my $name = shift // return "
\n";
my $col = Shiar_Sheet::Colour->new(@_);
my $minhex = $col->rgb24;
my $css = '#' . $col->rgb48;
@@ -32,123 +77,213 @@ sub colcell {
my $out = sprintf(' | %s',
join(',', map { int } @$col),
- "background:$css; color:$inverse; padding:0 1ex",
+ "background:$css; color:$inverse",
$name,
);
- $out .= sprintf ' | %s', "background:$_; color:$css", $minhex
- for @$sample;
+ $out .= sprintf('%s',
+ "background:$_; color:$css", $minhex
+ ) for @$sample;
return "$out\n";
}
-my %col = (
- -html => [
- sprintf('html',
- 'HTML keywords (inherited by CSSâ¥2.1 and SVG), mostly identical to X11',
- 'http://www.w3.org/TR/css3-color/#html4',
- ),
- qw/black maroon green olive navy purple cyan silver
- gray red lime yellow blue fuchsia aqua white/,
- qw/reset bold dim italic underline blink fastblink
- reverse hidden/,
- ],
- html => [
- qw/000000 CCCCCC/,
- qw/000000 800000 008000 808000 000080 800080 008080 C0C0C0
- 808080 FF0000 00FF00 FFFF00 0000FF FF00FF 00FFFF FFFFFF/,
- ],
- cga => [
- qw/000000 CCCCCC/,
- qw/000000 AA0000 00AA00 AA5500 0000AA AA00AA 00AAAA AAAAAA
- 555555 FF5555 55FF55 FFFF55 5555FF FF55FF 55FFFF FFFFFF/,
- ],
- xterm => [
- qw/000000 CCCCCC/,
- qw/000000 CC0000 00CC00 CCCC00 4682B4 CC00CC 00CCCC E5E5E5
- 4C4C4C FF0000 00FF00 FFFF00 1E90FF FF00FF 00FFFF FFFFFF/,
- ],
- tango => [
- qw/000000 CCCCCC/,
- qw/2E3436 CC0000 4E9A06 C4A000 3465A4 75507B 06989A D3D7CF
- 555753 EF2929 8AE234 FCE94F 729FCF AD7FA8 34E2E2 EEEEEC/,
- ],
- -xkcd => [
- sprintf('xkcd',
- 'human averages in xkcd survey results',
- 'http://blog.xkcd.com/2010/05/03/color-survey-results/',
+sub img_egapal {
+ my ($palette, $imgfile, $reindex) = @_;
+ return eval {
+ require Imager;
+ require MIME::Base64;
+
+ my @imgpal = map { Imager::Color->new(ref $_ ? @$_ : $_) } @{$palette};
+ state $imgcache = {};
+ my $img = $imgcache->{$imgfile}
+ //= Imager->new(file => "data/palimage/$imgfile")
+ or die Imager->errstr.$/;
+
+ do {
+ if ($reindex) {
+ $img->to_paletted({
+ make_colors => 'none',
+ colors => \@imgpal,
+ translate => 'closest',
+ });
+ }
+ else {
+ @{[ $img->getcolors ]} == @imgpal
+ or die "incompatible palette size\n";
+ $img->setcolors(colors => \@imgpal);
+ $img;
+ }
+ }->write(data => \my $imgdata, type => 'png');
+ return sprintf ' ',
+ MIME::Base64::encode_base64($imgdata);
+ } || $@;
+}
+
+sub coltable {
+ my ($term) = @_;
+ my $info = $palettes->{$term};
+
+ if (ref $info eq 'ARRAY') {
+ coltable($_) for @{$info};
+ return;
+ }
+
+ if (ref $info eq 'CODE') {
+ coltable($_) for $info->($palettes);
+ return;
+ }
+
+ ref $info eq 'HASH' or return;
+ my $order = $get{order} && $get{order}.'order';
+ my $reorder = $info->{$order} // $palettes->{ $info->{parent} }->{$order};
+
+ my $caption = $info->{name} // $term;
+ $caption = sprintf('<%s %s>%s',
+ $info->{href} ? 'a' : 'span',
+ join(' ',
+ map { sprintf '%s="%s"', $_, $info->{$_} }
+ grep { defined $info->{$_} }
+ qw( href title )
),
- qw/black maroon green olive navy purple teal silver
- grey red lime yellow blue fuchsia cyan white/,
- ],
- xkcd => [
- 0,0,
- qw/000000 650021 15b01a 6e750e 01153e 7e1e9c 029386 c5c9c7
- 929591 e50000 aaff32 ffff14 0343df ed0dd9 00ffff ffffff/,
- ],
-);
-
-for my $term (qw/cga xterm tango html xkcd/) {
- print '', "\n";
- printf "%s\n", $col{"-$term"}[0] || $term;
- for my $num (0 .. 15) {
- my $rgb = $col{$term}[$num + 2];
- my $name = $col{"-$term"}[$num + 1] || $num;
- $name = [ $name, ['#333'] ] if $term eq 'xkcd';
- print '', colcell($name, $rgb);
+ $caption,
+ ) if $info->{href} or $info->{title};
+
+ if ($info->{table} or $info->{rgbmap}) {
+ say '';
+ say sprintf '%s', $caption;
+
+ print coltable_hsv(@{$_}) for $info->{rgbmap} || ();
+
+ if (my $table = $info->{table}) {
+ $table = [ @{$table}[@{$reorder}] ] if $reorder;
+
+ for my $row (@$table) {
+ if (!$row) {
+ say '';
+ next;
+ }
+ print '';
+ print colcell(ref $_ ? @$_ : $_ ? reverse split /:/ : undef) for @$row;
+ }
+
+ if (@draw) {
+ my $width = scalar @{ $table->[0] };
+ my @imgpal = map {
+ [ ref $_ ? @{$_}[1 .. 3] : map {hex} /(..)(..)(..)/ ]
+ } map { @{$_} } @{$table};
+ for (@draw) {
+ print " | ", img_egapal(\@imgpal, @{$_});
+ }
+ }
+ }
+
+ say " | \n";
}
- print " \n\n";
-}
-:>
-
+ if (my $palette = $info->{list}) {
+ my $colours = colorder($palette, $reorder);
-
- 88-colour space
-<:
-for my $r (0 .. 3) {
- print ' ';
- for my $g (0 .. 3) {
- print '';
- 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);
+ my $rows = 8;
+ my $columns = ceil(@{$palette} / $rows);
+
+ say '';
+ say sprintf '%s', $caption;
+ for my $row (0 .. $rows - 1) {
+ print '';
+ for my $col (0 .. $columns - 1) {
+ my $num = $row + $col * $rows;
+ my ($rgb, $name) = split /:/, $colours->[$num], 3;
+ $name //= $rgb && $num;
+ $name = [ $name, [] ] if $term =~ /^msx/ and !$name; # no bg for transparency
+ $name = [ $name, ['#333'] ] if $term eq 'xkcd';
+ print colcell($name, $rgb);
+ }
+ }
+
+ for (@draw) {
+ my $imgpal = colorder($palette,
+ $info->{ansiorder} // $palettes->{ $info->{parent} }->{ansiorder}
+ );
+ print " | ", img_egapal($imgpal, @{$_});
}
+ say " | \n";
}
- print " \n";
}
-print "\n";
-print ' ';
-print colcell(80+$_, (($_ + 2 + ($_>0)) * 255/11) x 3) for 0 .. 7;
-print "
\n\n";
+sub colorder {
+ my ($palette, $reorder) = @_;
+ return [ map { $palette->[$_] =~ s/:(?![^:])|$/:$_/r } @{$reorder} ]
+ if $reorder;
+ return $palette;
+}
-:>
+sub coltable_hsv {
+ my ($dim, $rgbval, $greyramp) = @_;
-
- 256-colour space
-<:
-for my $r (0 .. 5) {
- print ' ';
- for my $g (0 .. 5) {
- print '';
- for my $b (0 .. 5) {
- my $index = $r*6*6 + $g*6 + $b + 16;
- print colcell($index, map { $_ && $_*40 + 55 } $r, $g, $b);
+ 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 / $vmax } @_ };
+
+ my @greymap = @{$greyramp || []}; # [name, r, g=l, b]
+ my @colmap; # saturation => value => hue => [name, r,g,b]
+
+ 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, $s, $v) = Shiar_Sheet::Colour->new(@rgb)->hsv;
+
+ if (!$s) {
+ if (@greymap) {
+ push @greymap, [ $rgbval->(@rgb) ];
+ next;
+ }
+
+ $h = 1; # greyscale hue
+ $s = $smax - $v + 1; # spread brightness over saturation groups
+ $v &&= $smax # highest saturation
+ or $v = $s = 1; # black at initial column
+ }
+
+ $h *= $hmax;
+ $v = $vmax - $v;
+ $s = $smax - $s - $v;
+
+ $colmap[$s][$v][$h] = [ $rgbval->(@rgb) ];
+ }
}
}
- print " \n";
-}
-print "\n";
-for my $row (0, 12) {
- print ' ';
- print colcell(232+$_, ($_*10 + 8) x 3) for $row .. $row+11;
- print "
\n";
+ my $out = '';
+ $out .= sprintf ' ', scalar @{$_} for @colmap;
+ my $huerow = $colmap[0][0]; # first {$_} map { @{$_} } @colmap;
+ for my $h (grep { $huerow->[$_] } 0 .. $#{$huerow}) {
+ $out .= '';
+ $out .= colcell(@$_) for map { $_->[$h] } map { reverse @{$_} } @colmap;
+ }
+
+ if (@greymap) {
+ $out .= ' ';
+ my $col = 0;
+ my $colbreak = scalar map { @$_ } @colmap; # same width as hue rows
+ for my $cell (sort { $a->[1] <=> $b->[1] || $a->[0] <=> $b->[0] } @greymap) {
+ $out .= '' unless $col++ % $colbreak;
+ $out .= colcell(@{$cell});
+ }
+ }
+
+ if (@draw) {
+ my @palette = map { [ @{$_}[1 .. 3] ] } @greymap, map {@$_} map {@$_} @colmap;
+ my $tablespan = scalar map { @$_ } @colmap;
+ my $imgdata = img_egapal(\@palette, @{ $draw[0] });
+ $out .= " $imgdata";
+ }
+
+ return $out;
}
-print "\n";
+coltable($_) for @termlist;
:>
-<: } :>
| |