From 3cc083e4183098368fcff9130ae670b1661f9e7b Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Fri, 16 Feb 2024 22:01:10 +0100
Subject: [PATCH] keyboard/altgr/index: class inventory count graphs

Complete comparison grown out of separate numbers for select classes.
---
 keyboard/altgr/index.inc.plp | 54 +++++++++++++++++++++++++++++++++---
 1 file changed, 50 insertions(+), 4 deletions(-)

diff --git a/keyboard/altgr/index.inc.plp b/keyboard/altgr/index.inc.plp
index ccb7fb6..0bb7774 100644
--- a/keyboard/altgr/index.inc.plp
+++ b/keyboard/altgr/index.inc.plp
@@ -6,7 +6,7 @@ my @incs = glob 'keyboard/altgr/*.eng.inc.pl';
 
 Html({
 	title => "altgr keyboard cheat sheets",
-	version => '1.1',
+	version => '1.2',
 	description => [
 		"Overview of alternate keyboard modes,",
 		"offering extended Unicode characters if a modifier key",
@@ -46,6 +46,37 @@ Html({
 	text-align: right;
 }
 
+.graph {
+	display: block;
+	line-height: 1ex;
+	height: 1.2ex;
+	margin-top: .4ex;
+}
+.graph ~ .graph {
+	/* subsequent graphs */
+	height: .7ex;
+}
+.graph > * {
+	display: inline-block;
+	height: 100%;
+	vertical-align: top;
+}
+.graph > label {
+	font-size: 75%;
+	margin-right: .2em;
+}
+.graph > span {
+	border: 1px solid #000;
+	border-right-width: 0;
+	font-size: 0;
+}
+.graph > :last-of-type {
+	border-right-width: 1px;
+}
+.graph > .ext {
+	border-left: 0; /* assume following unext */
+}
+
 img {
 	object-fit: cover;
 	height: 100%;
@@ -63,6 +94,7 @@ img {
 <:
 my @sample = split /(?<!\+)/, $get{sample} // 'asSci1!+1';
 require Shiar_Sheet::Keyboard;
+use List::Util qw( uniq max );
 
 printf '<section class="%s">', @sample ? 'section' : 'gallery';
 if (@sample) {
@@ -72,6 +104,7 @@ if (@sample) {
 	say '</tr></thead>';
 }
 my %idx = map {s/\Q.inc.pl\E$//; ($_ => eval{ Data($_) })} @incs;
+my $most = max(map { scalar keys %{$_->{def}{''}} } values %idx);
 for my $inc (sort {
 	$idx{$a}{category} cmp $idx{$b}{category} || $a cmp $b
 } keys %idx) {
@@ -90,10 +123,23 @@ for my $inc (sort {
 	}
 	else {
 		print $title;
-		print '</a>';
+		print '</a>', "\n\t";
 		my $keys = Shiar_Sheet::Keyboard->new($table);
-		print '<br>', join(' ', map { $keys->{key}{$_} =~ s/\s.*//r } grep {$_} keys %{$_})
-			for $keys->{mode} || ();
+		for my $mode ($keys->{mode} ? sort keys %{ $keys->{mode} } : '') {
+			my %inventory;
+			$inventory{ s/ (?!ext).*//r }++ for values %{ $keys->{def}{$mode} };
+			print '<span class=graph>';
+			print "<label>$_</label>" for $keys->{key}{$mode} =~ s/\s.*//r || ();
+			for my $g (sort keys %inventory) {
+				printf '<span class="%s" style="width:%.0f%%" title="%3$d %4$s"> %s</span>',
+					$g, $_/$most*100, $_,
+					join(' ', map {
+						$keys->{flag}{$_}[0] || 'extra'  # legend label of each class
+					} reverse split / /, $g)
+					for $inventory{$g};
+			}
+			say '</span>';
+		}
 		$keys->print_key('', $_, $keys->{def}{''}{$_} // 'ni') for @sample;
 		say '</tr>';
 	}
-- 
2.30.0