stylesheet => [qw'light dark'],
});
+my $imgfile = exists $get{img} && 'indi.png';
+
my @termlist;
push @termlist, split /\W+/, $ENV{PATH_INFO} || 'default';
<div class="section">
<:
+use 5.010;
use Shiar_Sheet::Colour '1.03';
use List::Util qw( min max );
die "Cannot open palette data: $_\n" for $@ || $! || ();
sub colcell {
- my $name = shift // return "<td colspan=3>\n";
+ my $name = shift // return "<td>\n";
my $col = Shiar_Sheet::Colour->new(@_);
my $minhex = $col->rgb24;
my $css = '#' . $col->rgb48;
my $out = sprintf('<td title="%s" style="%s">%s',
join(',', map { int } @$col),
- "background:$css; color:$inverse; padding:0 1ex",
+ "background:$css; color:$inverse",
$name,
);
- $out .= sprintf '<td style="%s"><code>%s</code>', "background:$_; color:$css", $minhex
- for @$sample;
+ $out .= sprintf('<samp style="%s"><small>%s</small></samp>',
+ "background:$_; color:$css", $minhex
+ ) for @$sample;
return "$out\n";
}
+sub img_egapal {
+ my ($palette) = @_;
+ return eval {
+ require MIME::Base64;
+ require Digest::CRC;
+
+ local $/;
+ open my $img, '<:bytes', "data/$imgfile" or die "$!\n";
+ my $imgdata = readline $img;
+
+ my $offset = 0x29 - 4;
+ my $len = 16 * 3;
+ my $chunklen = $len + 4;
+ substr($imgdata, $offset+4, $len) = pack 'H*', join '', @{$palette};
+ my ($p, $crc) = unpack "x${offset}a${chunklen}N", $imgdata;
+ substr($imgdata, $offset+4+$len, 4) = pack 'N', Digest::CRC::crc32($p);
+
+ return sprintf '<img src="data:image/png;base64,%s">',
+ MIME::Base64::encode_base64($imgdata);
+ } || $@;
+}
+
for my $term (@termlist) {
my $info = $palettes->{$term};
ref $info eq 'HASH' or next;
) if $info->{href} or $info->{title};
if (my $mapinfo = $info->{rgbmap}) {
- print '<table class="mapped">'."\n";
+ print '<table class="color mapped">'."\n";
printf "<caption>%s</caption>\n", $caption;
print coltable_hsv(@{$mapinfo});
print "</table>\n\n";
$colours = [ map { $colours->[$_] =~ s/:|$/:$_/r } @{$reorder} ];
}
- print '<table>', "\n";
+ print '<table class=color>', "\n";
printf "<caption>%s</caption>\n", $caption;
for my $num (0 .. $#{$colours}) {
my ($rgb, $name) = split /:/, $colours->[$num], 3;
$name = [ $name, ['#333'] ] if $term eq 'xkcd';
print '<tr>', colcell($name, $rgb);
}
+
+ print '<tr><td>', img_egapal(\@{$colours}) if $imgfile;
print "</table>\n\n";
}
}
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 $s = abs(min(@rgb) - max(@rgb));
if (!$s) {
- my ($index, $l) = $rgbval->(@rgb);
- $greymap{$index} = $l;
- next;
+ if ($greyramp) {
+ my ($index, $l) = $rgbval->(@rgb);
+ $greymap{$index} = $l;
+ next;
+ }
+
+ $h = $hmax; # greyscale hue
+ $s = 1; # lowest saturation for other hues
+ $v = $s = $vmax if !$v; # black at full saturation
}
$v = $vmax - $v;
}
my $out = '';
- $out .= sprintf '<colgroup span=%d>', 3 * @{$_} for @colmap;
+ $out .= sprintf '<colgroup span=%d>', scalar @{$_} 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;
}
- $offset += $dim ** 3;
- $greymap{$offset++} = $_ for @{$greyramp};
+ if ($greyramp) {
+ $offset += $dim ** 3;
+ $greymap{$offset++} = $_ for @{$greyramp};
+ }
+
+ if (%greymap) {
+ $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}));
+ }
+ }
- $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);
+ if ($imgfile) {
+ my @palette = map { [ @{$_}[1 .. 3] ] } map {@$_} map {@$_} @colmap;
+ my $imgdata = img_egapal(\@palette);
+ my $tablespan = scalar map { @$_ } @colmap;
+ $out .= "<tr><td colspan=$tablespan>$imgdata";
}
return $out;