+sub readstrings () {
+ my $nlen = 0;
+
+ open P, "-|", @ARGV or die $!;
+ while (<P>) {
+ chomp or die;
+ m/^(\d+) (\S+)$/ or die "$_ ?";
+ $nlen = length($1) if length($1) > $nlen;
+ push @strings, [ $1, $2 ];
+ }
+ $!=0; $?=0; close P or die "$us: generator failed: $! $?\n";
+}
+
+our @lp_values;
+our @numbers_bbox;
+our @texts_bbox;
+our $gap_width;
+our @core_size;
+our @item_size;
+our $rotate_paper;
+our @eff_paper_size;
+our @laycount;
+
+sub do_layout_recursive_search ($) {
+ my ($lpi) = @_;
+
+ if ($lpi < @lp_options) {
+ foreach my $v ($lp_fixed[$lpi] or @{ $lp_options[$lpi] }) {
+ return if recursive_layout_search $lpi+1
+ }
+ return 0;
+ }
+
+ print DEBUG " try", (map { sprintf " %-10.10s" $_ }, @lp_values), ":";
+
+ my %lp_y;
+ $lp_y{$_} = 1 foreach @lp_values;
+
+ $rotate_paper =
+ ($paperpts[0] > $paperpts[1] # paper looks like landscape
+ xor $lp_y{'landscape'});
+ @eff_paper_size = !$rotate_paper ? @paperpts : reverse @paperpts;
+
+ @item_size = @core_size;
+ my $blank_coord = !!$lp_y{'blank-below'};
+ $item_size[$blank_coord] *= (1.0 + $blankratio);
+
+ foreach my $coord (qw(0 1)) {
+ my $avail = $eff_paper_size[$coord] - $borders[$coord] * 2;
+ my $each = $item_size[$coord];
+ if (!$coord) {
+ $each += $gap_width;
+ $avail += $gap_width;
+ }
+ $laycount[$coord] = floor($avail / $each);
+ $laycount[$coord] >= 1 or wontfit "cannot fit even one $coord";
+ }
+
+ if ($lp_y{'single-column'}) {
+ $laycount[0] = 1;
+ } else {
+ $laycount[0] >= 2 or wontfit "requested multi-column but only one";
+ }
+
+ $laycount[0] * $laycount[1] >= @strings
+ or wontfit "layout fits too few @laycount";
+
+ print " OK @laycount\n";
+ return 1;
+}
+
+sub do_layout ($) {
+ my ($fontsize) = @_;
+
+ print DEBUG "layout $fontsize\n";
+
+ @numbers_bbox = metrics $fontname_num, map { $_->[0] } @strings;
+
+ my @nom_gap_bbox = metrics $fontname_num, ' ';
+ $gap_width = $gapratio * ($nom_gap_bbox[2] - $nom_gap_bbox[0])
+
+ @texts_bbox = metrics $fontname map { $_->[1] } @strings;
+
+ $core_size[0] =
+ ($numbers_bbox[2] - $numbers_bbox[0]) +
+ $gap_width
+ ($texts_bbox[2] - $texts_bbox[0]);
+
+ $core_size[1] = max
+ $numbers_bbox[3] - $numbers_bbox[1],
+ $texts_bbox[3] - $texts_bbox[1];
+
+ my @lp_values;
+ return do_layout_recursive_search 0;
+}
+
+our $usesz;
+
+sub determine_size_layout () {
+ my $minsz;
+ my $maxsz;
+
+ for (;;) {
+ my $trysz =
+ !defined $minsz ? 1 :
+ !defined $maxsz ? $minsz * 4 :
+ sqrt($minsz * $maxsz);
+
+ my $ok = do_layout $trysz;
+
+ if ($ok) { $minsz = $trysz; } else { $maxsz = $trysz; }
+
+ defined $minsz or die "cannot fit at even at ${trysz}pt\n";
+
+ if (defined $maxsz && ($maxsz / $minsz) < 1.01) {
+ $usesz = $minsz;
+ last;
+ }
+ }