mkgallery.pl

   1 #!/usr/bin/perl
   2
   3 # $Id$
   4
   5 # Recursively create image gallery index and slideshow wrappings.
   6 # Makes use of (slightly modified) "lightbox" Javascript/CSS as published
   7 # at http://www.huddletogether.com/projects/lightbox/
   8
   9 # Copyright (c) 2006 Eugene G. Crosser
  10
  11 #  This software is provided 'as-is', without any express or implied
  12 #  warranty.  In no event will the authors be held liable for any damages
  13 #  arising from the use of this software.
  14 #
  15 #  Permission is granted to anyone to use this software for any purpose,
  16 #  including commercial applications, and to alter it and redistribute it
  17 #  freely, subject to the following restrictions:
  18 #
  19 #  1. The origin of this software must not be misrepresented; you must not
  20 #     claim that you wrote the original software. If you use this software
  21 #     in a product, an acknowledgment in the product documentation would be
  22 #     appreciated but is not required.
  23 #  2. Altered source versions must be plainly marked as such, and must not be
  24 #     misrepresented as being the original software.
  25 #  3. This notice may not be removed or altered from any source distribution.
  26
  27 package FsObj;
  28
  29 use strict;
  30 use Carp;
  31 use POSIX qw/getcwd strftime/;
  32 use CGI qw/:html *table *Tr *center *div *Link/;
  33 use Image::Info qw/image_info dim/;
  34 use Term::ReadLine;
  35 use Getopt::Long;
  36 use Encode;
  37 use encoding 'utf-8';
  38 binmode(STDOUT, ":utf8");
  39
  40 my $haveimagick = eval { require Image::Magick; };
  41 { package Image::Magick; }      # to make perl compiler happy
  42
  43 my $haverssxml = eval { require XML::RSS; };
  44 { package XML::RSS; }           # to make perl compiler happy
  45
  46 my @sizes = (160, 640);
  47
  48 ######################################################################
  49
  50 my $incpath;
  51 my $rssobj;
  52 my $debug = 0;
  53 my $asktitle = 0;
  54 my $noasktitle = 0;
  55 my $rssfile = "";
  56
  57 charset("utf-8");
  58
  59 unless (GetOptions(
  60                 'help'=>\&help,
  61                 'incpath'=>\$incpath,
  62                 'asktitle'=>\$asktitle,
  63                 'noasktitle'=>\$noasktitle,
  64                 'rssfile=s'=>\$rssfile,
  65                 'debug'=>\$debug)) {
  66         &help;
  67 }
  68
  69 if ($rssfile && ! $haverssxml) {
  70         print STDERR "You need to get XML::RSS from CPAN to use --rssfile\n";
  71         exit 1;
  72 }
  73
  74 my $term = new Term::ReadLine "Edit Title";
  75
  76 FsObj->new(getcwd)->iterate;
  77
  78 if ($rssobj) {
  79         my $itemstodel = @{$rssobj->{'rss'}->{'items'}} - 15;
  80         while ($itemstodel-- > 0) {
  81                 pop(@{$rssobj->{'rss'}->{'items'}})
  82         }
  83         $rssobj->{'rss'}->save($rssobj->{'file'});
  84 }
  85
  86 sub help {
  87
  88         print STDERR <<__END__;
  89 usage: $0 [options]
  90  --help:        print help message and exit
  91  --incpath:     do not try to find .include diretory upstream, use
  92                 specified path (absolute or relavive).  Use with causion.
  93  --debug:       print a lot of debugging info to stdout as you run
  94  --asktitle:    ask to edit album titles even if there are ".title" files
  95  --noasktitle:  don't ask to enter album titles even where ".title"
  96                 files are absent.  Use partial directory names as titles.
  97  --rssfile=...: build RSS feed for newly added "albums", give name of rss file
  98 __END__
  99
 100         exit 1;
 101 }
 102
 103 sub new {
 104         my $this = shift;
 105         my $class;
 106         my $self;
 107         if (ref($this)) {
 108                 $class = ref($this);
 109                 my $parent = $this;
 110                 my $name = shift;
 111                 my $fullpath = $parent->{-fullpath}.'/'.$name;
 112                 $self = {
 113                                 -parent=>$parent,
 114                                 -root=>$parent->{-root},
 115                                 -base=>$name,
 116                                 -fullpath=>$fullpath,
 117                                 -inc=>'../'.$parent->{-inc},
 118                                 -rss=>'../'.$parent->{-rss},
 119                         };
 120         } else {
 121                 $class = $this;
 122                 my $root=shift;
 123                 $self = {
 124                                 -root=>$root,
 125                                 -fullpath=>$root,
 126                                 -inc=>getinc($root),
 127                                 -rss=>getrss($root),
 128                         };
 129         }
 130         bless $self, $class;
 131         if ($debug) {
 132                 print "new $class:\n";
 133                 foreach my $k(keys %$self) {
 134                         print "\t$k\t=\t$self->{$k}\n";
 135                 }
 136         }
 137         return $self;
 138 }
 139
 140 sub getinc {
 141         my $fullpath=shift;     # this is not a method
 142         my $depth=20;           # arbitrary max depth
 143
 144         if ($incpath) {
 145                 return $incpath."/.include";
 146         }
 147
 148         my $inc=".include";
 149         while ( ! -d $fullpath."/".$inc ) {
 150                 $inc = "../".$inc;
 151                 last unless ($depth-- > 0);
 152         }
 153         if ($depth > 0) {
 154                 return $inc.'/';                # prefix with trailing slash
 155         } else {
 156                 return 'NO-.INCLUDE-IN-PATH/';  # won't work anyway
 157         }
 158 }
 159
 160 sub getrss {
 161         my $fullpath=shift;     # this is not a method
 162         my $depth=20;           # arbitrary max depth
 163
 164         return "" unless $rssfile;
 165
 166         my $rss=$rssfile;
 167         while ( ! -f $fullpath."/".$rss ) {
 168                 $rss = "../".$rss;
 169                 last unless ($depth-- > 0);
 170         }
 171         if ($depth > 0) {
 172                 $rssobj->{'file'} = $rss;
 173                 $rssobj->{'rss'} = new XML::RSS (version=>2);
 174                 $rssobj->{'rss'}->parsefile($rss);
 175                 return $rss;
 176         } else {
 177                 print STDERR "There is no $rssfile in this or parent ".
 178                         "directories, you must create one with mkgalrss.pl\n";
 179                 exit 1;
 180         }
 181 }
 182
 183 sub iterate {
 184         my $self = shift;
 185         my $fullpath .= $self->{-fullpath};
 186         print "iterate in dir $fullpath\n" if ($debug);
 187
 188         my $youngest=0;
 189         my @rdirlist;
 190         my @rimglist;
 191         my $D;
 192         unless (opendir($D,$fullpath)) {
 193                 warn "cannot opendir $fullpath: $!";
 194                 return;
 195         }
 196         while (my $de = readdir($D)) {
 197                 next if ($de =~ /^\./);
 198                 my $child = $self->new($de);
 199                 my @stat = stat($child->{-fullpath});
 200                 $youngest = $stat[9] if ($youngest < $stat[9]);
 201                 if ($child->isdir) {
 202                         push(@rdirlist,$child);
 203                 } elsif ($child->isimg) {
 204                         push(@rimglist,$child);
 205                 }
 206         }
 207         closedir($D);
 208         my @dirlist = sort {$a->{-base} cmp $b->{-base}} @rdirlist;
 209         undef @rdirlist; # inplace sorting would be handy here
 210         my @imglist = sort {$a->{-base} cmp $b->{-base}} @rimglist;
 211         undef @rimglist; # optimize away unsorted versions
 212         $self->{-firstimg} = $imglist[0];
 213
 214         print "Dir: $self->{-fullpath}\n" if ($debug);
 215
 216 # 1. first of all, fill title for this directory and create hidden subdirs
 217
 218         $self->initdir;
 219
 220 # 2. recurse into subdirectories to get their titles filled
 221 #    before we start writing out subalbum list
 222
 223         foreach my $dir(@dirlist) {
 224                 $dir->iterate;
 225         }
 226
 227 # 3. iterate through images to build cross-links,
 228
 229         my $previmg = undef;
 230         foreach my $img(@imglist) {
 231                 # list-linking must be done before generating
 232                 # aux html because aux pages rely on prev/next refs
 233                 if ($previmg) {
 234                         $previmg->{-nextimg} = $img;
 235                         $img->{-previmg} = $previmg;
 236                 }
 237                 $previmg=$img;
 238         }
 239
 240 # 4. create scaled versions and aux html pages
 241
 242         foreach my $img(@imglist) {
 243                 # scaled versions must be generated before aux html
 244                 # and main image index because they both rely on
 245                 # refs to scaled images and they may be just original
 246                 # images, this is not known before we try scaling.
 247                 $img->makescaled;
 248                 # finally, make aux html pages
 249                 $img->makeaux;
 250         }
 251
 252 # no need to go beyond this point if the directory timestamp did not
 253 # change since we built index.html file last time.
 254
 255         my @istat = stat($self->{-fullpath}.'/index.html');
 256         return unless ($youngest > $istat[9]);
 257
 258 # 5. start building index.html for the directory
 259
 260         $self->startindex;
 261
 262 # 6. iterate through subdirectories to build subalbums list
 263
 264         if (@dirlist) {
 265                 $self->startsublist;
 266                 foreach my $dir(@dirlist) {
 267                         $dir->sub_entry;
 268                 }
 269                 $self->endsublist;
 270         }
 271
 272 # 7. iterate through images to build thumb list
 273
 274         if (@imglist) {
 275                 $self->startimglist;
 276                 foreach my $img(@imglist) {
 277                         print "Img: $img->{-fullpath}\n" if ($debug);
 278                         $img->img_entry;
 279                 }
 280                 $self->endimglist;
 281         }
 282
 283 # 8. comlplete building index.html for the directory
 284
 285         $self->endindex;
 286 }
 287
 288 sub isdir {
 289         my $self = shift;
 290         return ( -d $self->{-fullpath} );
 291 }
 292
 293 sub isimg {
 294         my $self = shift;
 295         my $fullpath = $self->{-fullpath};
 296         return 0 unless ( -f $fullpath );
 297         my $info = image_info($fullpath);
 298         if (my $error = $info->{error}) {
 299                 if (($error !~ "Unrecognized file format") &&
 300                     ($error !~ "Can't read head")) {
 301                         warn "File \"$fullpath\": $error\n";
 302                 }
 303                 return 0;
 304         }
 305
 306         tryapp12($info) unless ($info->{'ExifVersion'});
 307
 308         $self->{-isimg} = 1;
 309         $self->{-info} = $info;
 310         return 1;
 311 }
 312
 313 sub tryapp12 {
 314         my $info = shift;       # this is not a method
 315         my $app12;
 316         # dirty hack to take care of Image::Info parser strangeness
 317         foreach my $k(keys %$info) {
 318                 $app12=substr($k,6).$info->{$k} if ($k =~ /^App12-/);
 319         }
 320         return unless ($app12); # bad luck
 321         my $seenfirstline=0;
 322         foreach my $ln(split /[\r\n]+/,$app12) {
 323                 $ln =~ s/[[:^print:]\000]/ /g;
 324                 unless ($seenfirstline) {
 325                         $seenfirstline=1;
 326                         $info->{'Make'}=$ln;
 327                         next;
 328                 }
 329                 my ($k,$v)=split /=/,$ln,2;
 330                 if ($k eq 'TimeDate') {
 331                         $info->{'DateTime'} =
 332                                 strftime("%Y:%m:%d %H:%M:%S", localtime($v))
 333                                                         unless ($v < 0);
 334                 } elsif ($k eq 'Shutter') {
 335                         $info->{'ExposureTime'} = '1/'.int(1000000/$v+.5);
 336                 } elsif ($k eq 'Flash') {
 337                         $info->{'Flash'} = $v?'Flash fired':'Flash did not fire';
 338                 } elsif ($k eq 'Type') {
 339                         $info->{'Model'} = $v;
 340                 } elsif ($k eq 'Version') {
 341                         $info->{'Software'} = $v;
 342                 } elsif ($k eq 'Fnumber') {
 343                         $info->{'FNumber'} = $v;
 344                 }
 345         }
 346 }
 347
 348 sub initdir {
 349         my $self = shift;
 350         my $fullpath = $self->{-fullpath};
 351         for my $subdir(@sizes, 'html') {
 352                 my $tdir=sprintf "%s/.%s",$self->{-fullpath},$subdir;
 353                 mkdir($tdir,0755) unless ( -d $tdir );
 354         }
 355         $self->edittitle;
 356 }
 357
 358 sub edittitle {
 359         my $self = shift;
 360         my $fullpath = $self->{-fullpath};
 361         my $title;
 362         my $T;
 363         if (open($T,'<'.$fullpath.'/.title')) {
 364                 $title = <$T>;
 365                 $title =~ s/[\r\n]*$//;
 366                 close($T);
 367         }
 368         if ($asktitle || (!$title && !$noasktitle)) {
 369                 my $prompt = $self->{-base};
 370                 $prompt = '/' unless ($prompt);
 371                 my $OUT = $term->OUT || \*STDOUT;
 372                 print $OUT "Enter title for $fullpath\n";
 373                 $title = $term->readline($prompt.' >',$title);
 374                 $term->addhistory($title) if ($title);
 375                 if (open($T,'>'.$fullpath.'/.title')) {
 376                         print $T $title,"\n";
 377                         close($T);
 378                 }
 379         }
 380         unless ($title) {
 381                 $title=substr($fullpath,length($self->{-root}));
 382         }
 383         $self->{-title}=$title;
 384         print "title in $fullpath is $title\n" if ($debug);
 385 }
 386
 387 sub makescaled {
 388         my $self = shift;
 389         my $fn = $self->{-fullpath};
 390         my $name = $self->{-base};
 391         my $dn = $self->{-parent}->{-fullpath};
 392         my ($w, $h) = dim($self->{-info});
 393         my $max = ($w > $h)?$w:$h;
 394
 395         foreach my $size(@sizes) {
 396                 my $nref = '.'.$size.'/'.$name;
 397                 my $nfn = $dn.'/'.$nref;
 398                 my $factor=$size/$max;
 399                 if ($factor >= 1) {
 400                         $self->{$size} = $name; # unscaled version will do
 401                 } else {
 402                         $self->{$size} = $nref;
 403                         if (isnewer($fn,$nfn)) {
 404                                 doscaling($fn,$nfn,$factor,$w,$h);
 405                         }
 406                 }
 407         }
 408 }
 409
 410 sub isnewer {
 411         my ($fn1,$fn2) = @_;                    # this is not a method
 412         my @stat1=stat($fn1);
 413         my @stat2=stat($fn2);
 414         return (!@stat2 || ($stat1[9] > $stat2[9]));
 415         # true if $fn2 is absent or is older than $fn1
 416 }
 417
 418 sub doscaling {
 419         my ($src,$dest,$factor,$w,$h) = @_;     # this is not a method
 420
 421         my $err=1;
 422         if ($haveimagick) {
 423                 my $im = new Image::Magick;
 424                 print "doscaling $src -> $dest by $factor\n" if ($debug);
 425                 if ($err = $im->Read($src)) {
 426                         warn "ImageMagick: read \"$src\": $err";
 427                 } else {
 428                         $im->Scale(width=>$w*$factor,height=>$h*$factor);
 429                         $err=$im->Write($dest);
 430                         warn "ImageMagick: write \"$dest\": $err" if ($err);
 431                 }
 432                 undef $im;
 433         }
 434         if ($err) {     # fallback to command-line tools
 435                 system("djpeg \"$src\" | pnmscale \"$factor\" | cjpeg >\"$dest\"");
 436         }
 437 }
 438
 439 sub makeaux {
 440         my $self = shift;
 441         my $name = $self->{-base};
 442         my $dn = $self->{-parent}->{-fullpath};
 443         my $pref = $self->{-previmg}->{-base};
 444         my $nref = $self->{-nextimg}->{-base};
 445         my $inc = $self->{-inc};
 446         my $title = $self->{-info}->{'Comment'};
 447         $title = $name unless ($title);
 448
 449         print "slide: \"$title\": \"$pref\"->\"$name\"->\"$nref\"\n" if ($debug);
 450
 451         # slideshow
 452         for my $refresh('static', 'slide') {
 453                 my $fn = sprintf("%s/.html/%s-%s.html",$dn,$name,$refresh);
 454                 if (isnewer($self->{-fullpath},$fn)) {
 455                         my $imgsrc = '../'.$self->{$sizes[1]};
 456                         my $fwdref;
 457                         my $bakref;
 458                         if ($nref) {
 459                                 $fwdref = sprintf("%s-%s.html",$nref,$refresh);
 460                         } else {
 461                                 $fwdref = '../index.html';
 462                         }
 463                         if ($pref) {
 464                                 $bakref = sprintf("%s-%s.html",$pref,$refresh);
 465                         } else {
 466                                 $bakref = '../index.html';
 467                         }
 468                         my $toggleref;
 469                         my $toggletext;
 470                         if ($refresh eq 'slide') {
 471                                 $toggleref=sprintf("%s-static.html",$name);
 472                                 $toggletext = 'Stop!';
 473                         } else {
 474                                 $toggleref=sprintf("%s-slide.html",$name);
 475                                 $toggletext = 'Play-&gt;';
 476                         }
 477                         my $F;
 478                         unless (open($F,'>'.$fn)) {
 479                                 warn "cannot open \"$fn\": $!";
 480                                 next;
 481                         }
 482                         binmode($F, ":utf8");
 483                         if ($refresh eq 'slide') {
 484                                 print $F start_html(
 485                                         -encoding=>"utf-8",
 486                                         -title=>$title,
 487                                         -bgcolor=>"#808080",
 488                                         -head=>meta({-http_equiv=>'Refresh',
 489                                                 -content=>"3; url=$fwdref"}),
 490                                         -style=>{-src=>$inc."gallery.css"},
 491                                         ),"\n";
 492
 493                         } else {
 494                                 print $F start_html(-title=>$title,
 495                                         -encoding=>"utf-8",
 496                                         -bgcolor=>"#808080",
 497                                         -style=>{-src=>$inc."gallery.css"},
 498                                         ),"\n";
 499                         }
 500                         print $F start_center,"\n",
 501                                 h1($title),"\n",
 502                                 start_table({-class=>'navi'}),start_Tr,"\n",
 503                                 td(a({-href=>"../index.html"},"Index")),"\n",
 504                                 td(a({-href=>$bakref},"&lt;&lt;Prev")),"\n",
 505                                 td(a({-href=>$toggleref},$toggletext)),"\n",
 506                                 td(a({-href=>$fwdref},"Next&gt;&gt;")),"\n",
 507                                 end_Tr,
 508                                 end_table,"\n",
 509                                 table({-class=>'picframe'},
 510                                         Tr(td(img({-src=>$imgsrc})))),"\n",
 511                                 end_center,"\n",
 512                                 end_html,"\n";
 513                         close($F);
 514                 }
 515         }
 516
 517         # info html
 518         my $fn = sprintf("%s/.html/%s-info.html",$dn,$name);
 519         if (isnewer($self->{-fullpath},$fn)) {
 520                 my $F;
 521                 unless (open($F,'>'.$fn)) {
 522                         warn "cannot open \"$fn\": $!";
 523                         return;
 524                 }
 525                 my $imgsrc = sprintf("../.%s/%s",$sizes[0],$name);
 526                 print $F start_html(-title=>$title,
 527                                 -encoding=>"utf-8",
 528                                 -style=>{-src=>$inc."gallery.css"},),"\n",
 529                         start_center,"\n",
 530                         h1($title),"\n",
 531                         table({-class=>'ipage'},
 532                                 Tr(td(img({-src=>$imgsrc})),
 533                                         td($self->infotable))),
 534                         a({-href=>'../index.html'},'Index'),"\n",
 535                         end_center,"\n",
 536                         end_html,"\n";
 537                 close($F);
 538         }
 539 }
 540
 541 sub startindex {
 542         my $self = shift;
 543         my $fn = $self->{-fullpath}.'/index.html';
 544         my $block = $self->{-fullpath}.'/.noindex';
 545         $fn = '/dev/null' if ( -f $block );
 546         my $IND;
 547         unless (open($IND,'>'.$fn)) {
 548                 warn "cannot open $fn: $!";
 549                 return;
 550         }
 551         binmode($IND, ":utf8");
 552         $self->{-IND} = $IND;
 553
 554         my $inc = $self->{-inc};
 555         my $title = $self->{-title};
 556         my $rsslink="";
 557         if ($self->{-rss}) {
 558                 $rsslink=Link({-rel=>'alternate',
 559                                 -type=>'application/rss+xml',
 560                                 -title=>'RSS',
 561                                 -href=>$self->{-rss}});
 562         }
 563         print $IND start_html(-title => $title,
 564                         -encoding=>"utf-8",
 565                         -head=>$rsslink,
 566                         -style=>{-src=>[$inc."gallery.css",
 567                                         $inc."lightbox.css"]},
 568                         -script=>[{-code=>"var incPrefix='$inc';"},
 569                                 {-src=>$inc."gallery.js"},
 570                                 {-src=>$inc."lightbox.js"}]),
 571                 a({-href=>"../index.html"},"UP"),"\n",
 572                 start_center,"\n",
 573                 h1($title),"\n",
 574                 "\n";
 575 }
 576
 577 sub endindex {
 578         my $self = shift;
 579         my $IND = $self->{-IND};
 580
 581         print $IND end_center,end_html,"\n";
 582
 583         close($IND) if ($IND);
 584         undef $self->{-IND};
 585         if ($rssobj) {
 586                 my $rsstitle=sprintf "%s [%d images, %d subalbums]",
 587                                 $self->{-title},
 588                                 $self->{-numofimgs},
 589                                 $self->{-numofsubs};
 590                 my $rsslink=$rssobj->{'rss'}->channel('link')."index.html";
 591                 $rssobj->{'rss'}->add_item(
 592                         title           => $self->{-title},
 593                         link            => $rsslink,
 594                         description     => $rsstitle,
 595                 );
 596         }
 597 }
 598
 599 sub startsublist {
 600         my $self = shift;
 601         my $IND = $self->{-IND};
 602
 603         print $IND h2("Albums"),"\n",start_table,"\n";
 604 }
 605
 606 sub sub_entry {
 607         my $self = shift;
 608         my $IND = $self->{-parent}->{-IND};
 609         my $name = $self->{-base};
 610         my $title = $self->{-title};
 611
 612         $self->{-parent}->{-numofsubs}++;
 613         print $IND Tr(td(a({-href=>$name.'/index.html'},$name)),
 614                         td(a({-href=>$name.'/index.html'},$title))),"\n";
 615 }
 616
 617 sub endsublist {
 618         my $self = shift;
 619         my $IND = $self->{-IND};
 620
 621         print $IND end_table,"\n",br({-clear=>'all'}),hr,"\n\n";
 622 }
 623
 624 sub startimglist {
 625         my $self = shift;
 626         my $IND = $self->{-IND};
 627         my $first = $self->{-firstimg}->{-base};
 628         my $slideref = sprintf(".html/%s-slide.html",$first);
 629
 630         print $IND h2("Images"),"\n",
 631                 a({-href=>$slideref},'Slideshow'),
 632                 "\n";
 633 }
 634
 635 sub img_entry {
 636         my $self = shift;
 637         my $IND = $self->{-parent}->{-IND};
 638         my $name = $self->{-base};
 639         my $title = $self->{-info}->{'Comment'};
 640         $title = $name unless ($title);
 641         my $thumb = $self->{$sizes[0]};
 642         my $medium = $self->{$sizes[1]};
 643         my $info = $self->{-info};
 644         my ($w, $h) = dim($info);
 645
 646         $self->{-parent}->{-numofimgs}++;
 647         print $IND start_div({-class=>'ibox',-id=>$name,
 648                                 -OnClick=>"HideIbox('$name');"}),"\n",
 649                 start_div({-class=>'iboxtitle'}),
 650                 span({-style=>'float: left;'},b("Info for $name")),
 651                 span({-style=>'float: right;'},
 652                         a({-href=>"#",-OnClick=>"HideIbox('$name');"},"Close")),
 653                 br({-clear=>'all'}),"\n",
 654                 end_div,"\n",
 655                 $self->infotable,
 656                 end_div,"\n";
 657
 658         print $IND table({-class=>'slide'},Tr(td(
 659                 a({-href=>".html/$name-info.html",-title=>'Image Info',
 660                         -onClick=>"return showIbox('$name');"},$title),
 661                 br,
 662                 a({-href=>$medium,-rel=>"lightbox",-title=>$title},
 663                         img({-src=>$thumb})),
 664                 br,
 665                 a({-href=>$name,-title=>'Original Image'},"($w x $h)"),
 666                 br))),"\n";
 667 }
 668
 669 sub endimglist {
 670         my $self = shift;
 671         my $IND = $self->{-IND};
 672
 673         print $IND br({-clear=>'all'}),hr,"\n\n";
 674 }
 675
 676 sub infotable {
 677         my $self = shift;
 678         my $info = $self->{-info};
 679         my $msg='';
 680
 681         my @infokeys=(
 682                 'DateTime',
 683                 'ExposureTime',
 684                 'FNumber',
 685                 'Flash',
 686                 'ISOSpeedRatings',
 687                 'MeteringMode',
 688                 'ExposureProgram',
 689                 'FocalLength',
 690                 'FileSource',
 691                 'Make',
 692                 'Model',
 693                 'Software',
 694         );
 695         $msg.=start_table({-class=>'infotable'})."\n";
 696         foreach my $k(@infokeys) {
 697                 $msg.=Tr(td($k.":"),td($info->{$k}))."\n" if ($info->{$k});
 698         }
 699         $msg.=end_table."\n";
 700 }
 701