3 our $us = $0; $us =~ s#.*/##;
8 our $papersize = 'creditcard';
9 our $fontname = 'Courier';
10 our $fontname_num = 'Courier';
16 our @lp_options = ( [ 'blank-below', 'blank-to-right', ],
17 [ 'landscape', 'portrait' ],
18 [ 'single-column', 'multi-column', ] );
22 usage: $us [<options>] <foo-mail-pregen> <foo-mail-pregen-opts>...
24 -p<papersize> for libpaper, or "creditcard" default is $papersize
25 -F[<numberfont>,]<font> font name default is $fontname
26 -b<border>|-b<bx>x<by> all in mm
27 -g<gapratio> number-to-addr gap adjustment
28 -l<lineratio> inter-line space ("leading") adjustment factor
29 -b<blankratio> (blank space size) / (text size)
33 foreach my $spec (@lp_options) { $usage .= <<END foreach @$spec; }
37 open DEBUG, ">/dev/null" or die $!;
41 sub badusage () { die "bad usage\n\n$usage"; }
43 sub mm2pt { map { $_ * 72.0 / 25.4 } @_; }
48 $r = $_ if !defined $r or $_ > $r;
56 $r = $_ if !defined $r or $_ < $r;
61 my $fontname_re = '[^()\\,]+';
62 my $dbl_re = '(?:[0-9]+\.?|[0-9]*\.[0-9]+)';
65 badusage unless @ARGV;
66 last unless $ARGV[0] =~ m/^-/;
73 } elsif (s/^-p($dbl_re)x($dbl_re)$//o) {
75 @paperpts = mm2pt($1,$2);
76 } elsif (s/^-F($fontname_re)$//o) {
77 $fontname = $fontname_num = $1;
78 } elsif (s/^-F($fontname_re),($fontname_re)$//o) {
79 ($fontname_num, $fontname) = ($1, $2);
80 } elsif (s/^-b($dbl_re)$//o) {
82 } elsif (s/^-b($dbl_re)x($dbl_re)$//o) {
84 } elsif (s/^-l($dbl_re)$//o) {
86 } elsif (s/^-g($dbl_re)$//o) {
88 } elsif (s/^-b($dbl_re)$//o) {
91 open DEBUG, ">&STDERR" or die $!;
93 if (m/^--([-a-z]+)$/) {
95 grep { $1 eq $_ } @{ $lp_options[$_] }
109 if ($papersize eq 'creditcard') {
110 # ISO/IEC 7810 ID-1, from en.wikipedia.org/wiki/Payment_card
111 @paperpts = mm2pt qw(85.60 53.98);
113 $!=0; $?=0; my $r = `paperconf -sp $1`;
114 defined $r or die "paperconf failed: $? $!\n";
115 $r =~ m/^([0-9.]+) ([0-9.]+)$/ or die "$_ ?";
120 @borders = mm2pt @borders;
122 @ARGV >= 2 or badusage;
129 open P, "-|", @ARGV or die $!;
132 m/^(\d+) (\S+)$/ or die "$_ ?";
133 $nlen = length($1) if length($1) > $nlen;
134 push @strings, [ $1, $2 ];
136 $!=0; $?=0; close P or die "$us: generator failed: $! $?\n";
149 print DEBUG " NO @_\n";
163 sub prepare_metrics () {
164 print DEBUG " prepare_metrics\n";
165 my $pchild = open GI, "-|"; defined $pchild or die $!;
167 ([ \@numbers_1_metr, $fontname_num, map { $_->[0] } @strings ],
168 [ \@nom_gap_1_metr, $fontname_num, ' ' ],
169 [ \@texts_1_metr, $fontname, map { $_->[1] } @strings ],
172 foreach my $set (@sets) {
173 my ($ra, $fn, @s) = @$set;
174 print DEBUG " want $fn ",scalar(@s),"\n";
175 printf <<END, psstring($fn) or die $!;
176 %s findfont 10 scalefont setfont
178 printf <<END, psstring($_) or die $! foreach @s;
182 dup stringwidth pop =
183 true charpath pathbbox = = = =
186 close STDOUT or die $!;
189 my $gchild = open GO, "-|"; defined $gchild or die $!;
191 open STDIN, "<&GI" or die $!;
192 exec qw(gs -dSAFER -dNOPAUSE -q -dBATCH
193 -sDEVICE=pswrite -sOutputFile=/dev/null
196 or die "$us: exec gs: $!\n";
198 foreach my $set (@sets) {
199 my ($ra, $fn, @s) = @$set;
201 for (my $count=0; $count < @s; $count++) {
203 foreach my $ix (0..4) {
204 $_ = <GO>; defined or die "gs fail or eof";
205 printf DEBUG " %s (%d,$ix) |%s", $fn, $count, $_;
207 m/^-?$dbl_re$/o or die "gs $_ ?";
210 print DEBUG " metrics $fn [$count]: @tbb\n";
211 $bb[0] = min $bb[0], $tbb[4];
212 $bb[1] = min $bb[1], $tbb[3];
213 $bb[2] = max $bb[2], $tbb[2];
214 $bb[3] = max $bb[3], $tbb[1];
215 $bb[4] = max $bb[4], $tbb[0];
217 print DEBUG " metrics $fn: @bb\n";
218 @$ra = map { $_ * 0.1 } @bb;
220 $!=0; $?=0; close GO or die "gs $! $?";
221 $!=0; $?=0; close GI or die "gs paste $! $?";
224 sub do_layout_recursive_search ($);
225 sub do_layout_recursive_search ($) {
228 if ($lpi < @lp_options) {
229 foreach my $v ($lp_fixed[$lpi] or @{ $lp_options[$lpi] }) {
230 $lp_values[$lpi] = $v;
231 my $r = do_layout_recursive_search $lpi+1;
237 print DEBUG " try", (map { sprintf " %-10.10s", $_ } @lp_values), ":";
240 $lp_y{$_} = 1 foreach @lp_values;
242 $lp_y{rotate_paper} =
243 ($paperpts[0] > $paperpts[1] # paper looks like landscape
244 xor $lp_y{'landscape'});
245 @eff_paper_size = !$lp_y{rotate_paper} ? @paperpts : reverse @paperpts;
247 @item_size = @core_size;
248 my $blank_coord = !!$lp_y{'blank-below'};
249 $item_size[$blank_coord] *= (1.0 + $blankratio);
251 foreach my $coord (qw(0 1)) {
252 my $avail = $eff_paper_size[$coord] - $borders[$coord] * 2;
253 my $each = $item_size[$coord];
256 $avail += $gap_width;
258 $lp_y{$coord} = floor($avail / $each);
259 $lp_y{$coord} >= 1 or return wontfit "cannot fit even one $coord";
262 if ($lp_y{'single-column'}) {
266 or return wontfit "requested multi-column but only one";
269 my $laycountshow = "$lp_y{0} $lp_y{1}";
271 $lp_y{0} * $lp_y{1} >= @strings
272 or return wontfit "layout fits too few $laycountshow";
274 print DEBUG " OK $laycountshow\n";
281 print DEBUG "layout $fontsize\n";
283 @numbers_metr = map { $_ * $fontsize } @numbers_1_metr;
284 $gap_width = $gapratio * $fontsize * $nom_gap_1_metr[4];
285 @texts_metr = map { $_ * $fontsize } @texts_1_metr;
287 $core_size[0] = $numbers_metr[4] + $gap_width + $texts_metr[4];
289 $core_size[1] = $lineratio * $fontsize;
291 return do_layout_recursive_search 0;
297 sub determine_size_layout () {
303 !defined $minsz ? 1 :
304 !defined $maxsz ? $minsz * 4 :
305 sqrt($minsz * $maxsz);
307 my $ok = do_layout $trysz;
309 if ($ok) { $minsz = $trysz; } else { $maxsz = $trysz; }
311 defined $minsz or die "cannot fit at even at ${trysz}pt\n";
313 if (defined $maxsz && ($maxsz / $minsz) < 1.01) {
319 $lp_y = do_layout $usesz or die;
321 print DEBUG Dumper($usesz, \@lp_values, \@numbers_metr,
322 \@texts_metr, $gap_width, \@core_size,
323 \@item_size, \@eff_paper_size,
327 sub prf { printf @_ or die $!; }
329 sub write_output () {
334 for ($cnr[0]=0; $cnr[0]<2; $cnr[0]++) {
335 for ($cnr[1]=0; $cnr[1]<2; $cnr[1]++) {
336 foreach my $cnrc (qw(0 1)) {
338 prf "%s ", $cnr[$_] ? $paperpts[$_] : 0 foreach qw(0 1);
340 prf "%s ", ($cnrc!=$_ ? 0 : $cnr[$_] ? -1 : +1) * $borders[$_]
342 prf "rlineto stroke\n";
346 prf "grestore gsave\n";
347 prf "%s ", -$borders[$_] foreach qw(0 1);
349 prf "90 rotate\n" if $lp_y->{rotate_paper};
355 determine_size_layout();