termcol: title overrides for html and xkcd

[sheet.git] / termcol.plp

diff --git a/termcol.plp b/termcol.plp
index 39c89013d27a10b5e8e2688138b9ca6114c63382..b018685f9794fc3207cc329821b8d938ad2a5da2 100644 (file)
--- a/termcol.plp
+++ b/termcol.plp
@@ -13,39 +13,39 @@ Html({
        stylesheet => [qw'light dark'],
 });
 
-use List::Util 'min';
-
 :>
 <h1>Terminal colours</h1>
 
 <div class="section">
 <:
-sub luminance {
-       # perceived brightness (using ITU-R recommendation 601 luma co-efficients)
-       my ($r, $g, $b) = @_;
-       return $r*.299 + $g*.587 + $b*.114;
-}
+use Shiar_Sheet::Colour;
 
 sub colcell {
-       my $id = shift;
-       my @rgb = @_ >= 3 ? @_ : (map {hex} $_[0] =~ /(..)/g);
-       my $rgb24 = '';
-       $rgb24 .= sprintf '%X', min($_ / 17 + .5, 15) for @rgb[0..2];
-       my $rgb48 = '';
-       $rgb48 .= sprintf '%02X', $_ for @rgb[0..2];
-       my $inverse = sprintf('%X', luminance(@rgb)/255 < .3 ? 12 : 0) x 3;
-       return sprintf '<td title="%s" style="%s">%s<td style="%s">%s<td style="%s">%s'."\n",
-               join(',', map { int } @rgb[0..2]),
-               "background:#$rgb48; color:#$inverse; padding:0 1ex",
-               $id,
-               "background:#000; color:#$rgb48",
-               $rgb24,
-               "background:#FFF; color:#$rgb48",
-               $rgb24,
+       my $name = shift;
+       my $col = Shiar_Sheet::Colour->new(@_);
+       my $minhex = $col->rgb24;
+       my $css     = '#' . $col->rgb48;
+       my $inverse = '#' . sprintf('%X', $col->luminance/255 < .3 ? 12 : 0) x 3;
+
+       my $sample = [ qw(#000 #FFF) ];
+       ($name, $sample) = @$name if ref $name eq 'ARRAY';
+
+       my $out = sprintf('<td title="%s" style="%s">%s',
+               join(',', map { int } @$col),
+               "background:$css; color:$inverse; padding:0 1ex",
+               $name,
+       );
+       $out .= sprintf '<td style="%s">%s', "background:$_; color:$css", $minhex
+               for @$sample;
+       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
@@ -72,6 +72,10 @@ my %col = (
                   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/,
        ],
@@ -82,13 +86,14 @@ my %col = (
        ],
 );
 
-for my $term (qw/html cga xterm tango xkcd/) {
+for my $term (qw/cga xterm tango html xkcd/) {
        print '<table>', "\n";
-       print "<caption>$term</caption>\n";
+       printf "<caption>%s</caption>\n", $col{"-$term"}[0] || $term;
        for my $num (0 .. 15) {
                my $rgb = $col{$term}[$num + 2];
-               print '<tr>',
-                       colcell($col{"-$term"}[$num] || $num, $rgb, $col{$term}[0]);
+               my $name = $col{"-$term"}[$num + 1] || $num;
+               $name = [ $name, ['#333'] ] if $term eq 'xkcd';
+               print '<tr>', colcell($name, $rgb);
        }
        print "</table>\n\n";
 }