termcol: define arne's cpc-derived palette "cpcboy"

[sheet.git] / termcol.plp

diff --git a/termcol.plp b/termcol.plp
index 0c5d3e4d27819484ea19e4c54a047b2939bfea43..267d5a74a7821f4bfd5a54aba6c420a0c2b55589 100644 (file)
--- a/termcol.plp
+++ b/termcol.plp
@@ -14,12 +14,14 @@ Html({
        stylesheet => [qw'light dark'],
 });
 
+my $imgfile = $get{img} // exists $get{img} && 'indi.png';
+
 my @termlist;
 push @termlist, split /\W+/, $ENV{PATH_INFO} || 'default';
 
 my %termgroup = (
        default => [qw( ansi xkcd ansi88 )],
-       more    => [qw( ansi legacy ansi256 )],
+       more    => [qw( ansi mirc legacy ansi256 )],
        msx     => [qw( msx1 msx2 arnejmp )],
        ansi    => [qw( cga xterm tango app html )],
        legacy  => [qw( c64 msx2 mac2 risc arnegame cpc )],
@@ -42,6 +44,7 @@ print
 
 <div class="section">
 <:
+use 5.010;
 use Shiar_Sheet::Colour '1.03';
 use List::Util qw( min max );
 
@@ -49,7 +52,7 @@ my $palettes = do 'termcol.inc.pl';
 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;
@@ -58,16 +61,47 @@ sub colcell {
        my $sample = [ qw(#000 #FFF) ];
        ($name, $sample) = @$name if ref $name eq 'ARRAY';
 
-       my $out = sprintf('<th title="%s" style="%s">%s',
+       my $out = sprintf('<td title="%s" style="%s">%s',
                join(',', map { int } @$col),
                "background:$css; color:$inverse",
                $name,
        );
-       $out .= sprintf '<td style="%s">%s', "background:$_; 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 Imager;
+               require MIME::Base64;
+
+               my @imgpal = map { Imager::Color->new(ref $_ ? @$_ : $_) } @{$palette};
+               state $reindex = $imgfile =~ s/!$//;
+               state $img = Imager->new(file => "data/palimage/$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 $imgdata, type => 'png');
+               return sprintf '<img src="data:image/png;base64,%s">',
+                       MIME::Base64::encode_base64($imgdata);
+       } || $@;
+}
+
 for my $term (@termlist) {
        my $info = $palettes->{$term};
        ref $info eq 'HASH' or next;
@@ -103,6 +137,8 @@ for my $term (@termlist) {
                        $name = [ $name, ['#333'] ] if $term eq 'xkcd';
                        print '<tr>', colcell($name, $rgb);
                }
+
+               print '<tr><td>', img_egapal(\@{$colours}) if $imgfile;
                print "</table>\n\n";
        }
 }
@@ -115,9 +151,8 @@ sub coltable_hsv {
        my $smax = $dim - 1;
        $rgbval ||= sub { join('', @_), map { int $_ * 255 / $vmax } @_ };
 
-       my %greymap;  # name => value
+       my @greymap = @{$greyramp || []};  # [name, r, g=l, b]
        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) {
@@ -129,9 +164,8 @@ sub coltable_hsv {
                                my $s = abs(min(@rgb) - max(@rgb));
 
                                if (!$s) {
-                                       if ($greyramp) {
-                                               my ($index, $l) = $rgbval->(@rgb);
-                                               $greymap{$index} = $l;
+                                       if (@greymap) {
+                                               push @greymap, [ $rgbval->(@rgb) ];
                                                next;
                                        }
 
@@ -149,28 +183,30 @@ sub coltable_hsv {
        }
 
        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;
        }
 
-       if ($greyramp) {
-               $offset += $dim ** 3;
-               $greymap{$offset++} = $_ for @{$greyramp};
-       }
-
-       if (%greymap) {
+       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) {
+               for my $cell (sort { $a->[1] <=> $b->[1] || $a->[0] <=> $b->[0] } @greymap) {
                        $out .= '<tr>' unless $col++ % $colbreak;
-                       $out .= colcell($num, ($greymap{$num}) x 3);
+                       $out .= colcell(@{$cell});
                }
        }
 
+       if ($imgfile) {
+               my @palette = map { [ @{$_}[1 .. 3] ] } @greymap, map {@$_} map {@$_} @colmap;
+               my $imgdata = img_egapal(\@palette);
+               my $tablespan = scalar map { @$_ } @colmap;
+               $out .= "<tr><td colspan=$tablespan>$imgdata";
+       }
+
        return $out;
 }