baa7ceacd1b72c8e37cb81da8a15498c853b9ec3
[mkgallery.git] / mkgallery.pl
1 #!/usr/bin/perl
2
3 use strict;
4 use Carp;
5 use POSIX qw/getcwd/;
6 use CGI qw/:html *table *center *div/;
7 use Image::Info qw/image_info dim/;
8 use Image::Magick;
9
10 my $ask=1;
11 my $startdir=getcwd;
12
13 ######################################################################
14
15 &processdir($startdir);
16
17 sub processdir {
18         my ($start,$dir)=@_;
19         my $dn=$start;
20         $dn .= "/".$dir if ($dir);
21         unless ( -d $dn ) {
22                 warn "not a directory: $dn";
23                 return;
24         }
25         my $D;
26         unless (opendir($D,$dn)) {
27                 warn "cannot opendir $dn: $!";
28                 return;
29         }
30
31 # recurse into subdirectories BEFORE opening index file
32
33         &iteratedir($D,$start,$dir,sub {
34                 my ($start,$dir,$base)=@_;
35                 my $ndir = $dir;
36                 $ndir .= "/" if ($ndir);
37                 $ndir .= $base;
38                 return unless ( -d $start."/".$ndir );
39                 &processdir($start,$ndir);
40         });
41
42 # fill in title
43
44         my $title=&gettitle($dn,$dir);
45
46 # get include prefix
47
48         my $inc=&getinclude($dn);
49
50 # generate directory index unless suppressed
51
52         if ( -e $dn."/.noindex" ) {
53                 open(STDOUT,">/dev/null");
54         } else {
55                 open(STDOUT,">".$dn."/index.html");
56         }
57
58 # write HTML header
59
60         print start_html(-title => $title,
61                         -style=>{-src=>[$inc."gallery.css",
62                                         $inc."lightbox.css"]},
63                         -script=>[{-code=>"var incPrefix='$inc';"},
64                                 {-src=>$inc."gallery.js"},
65                                 {-src=>$inc."lightbox.js"}]),"\n";
66         print a({-href=>"../"},"UP");
67         print start_center,"\n";
68         print h1($title),"\n";
69
70 # create list of sub-albums
71
72         my $hassubdirs=0;
73         &iteratedir($D,$start,$dir,sub {
74                 my ($start,$dir,$base)=@_;
75                 my $en=sprintf("%s/%s/%s",$start,$dir,$base);
76                 return unless ( -d $en );
77                 unless ($hassubdirs) {
78                         print hr,h2("Albums"),start_table,"\n";
79                         $hassubdirs=1;
80                 }
81                 &subalbum($base,&gettitle($en,$dir."/".$base));
82         });
83         print end_table,hr,"\n" if ($hassubdirs);
84
85 # create picture gallery
86
87         my $haspics=0;
88         &iteratedir($D,$start,$dir,sub {
89                 my ($start,$dir,$base)=@_;
90                 my $en=sprintf("%s/%s/%s",$start,$dir,$base);
91                 return unless ( -f $en );
92                 $haspics=1 if (&processfile($start,$dir,$base,$en));
93         });
94
95 # write HTML footer
96
97         print br({-clear=>"all"}),"\n";
98         print hr,"\n" if ($haspics);
99         print end_center,"\n";
100         print end_html,"\n";
101
102         close(STDOUT);
103         closedir($D);
104 }
105
106 #############################################################
107 # helper functions
108 #############################################################
109
110 sub iteratedir {
111         my ($D,$start,$dir,$prog)=@_;
112         my @list=();
113         while (my $de=readdir($D)) {
114                 next if ($de =~ /^\./);
115                 push(@list,$de);
116         }
117         foreach my $de(sort @list) {
118                 &$prog($start,$dir,$de);
119         }
120         rewinddir($D);
121 }
122
123 sub getinclude {
124         my ($dn)=@_;
125
126         my $depth=20;
127         my $str="";
128         #print STDERR "start include ",$dn."/".$str.".include","\n";
129         while ( ! -d $dn."/".$str.".include" ) {
130                 #print STDERR "not include ",$dn."/".$str.".include","\n";
131                 $str.="../";
132                 last unless ($depth--);
133         }
134         #print STDERR "end include ",$dn."/".$str.".include","\n";
135         if ( -d $dn."/".$str.".include" ) {
136                 #print STDERR "return include ".$str.".include/".$fn,"\n";
137                 return $str.".include/";
138         } else {
139                 return ""; # won't work anyway but return something
140         }
141 }
142
143 sub gettitle {
144         my ($dir,$dflt)=@_;
145
146         my $F;
147         my $str;
148         if (open($F,"<".$dir."/.title")) {
149                 $str=<$F>;
150                 chop $str;
151                 close($F);
152         } else {
153                 print STDERR "enter title for $dir\n";
154                 $str=<>;
155                 if ($str =~ /^\s*$/) {
156                         $str=$dflt;
157                 }
158                 if (open($F,">".$dir."/.title")) {
159                         print $F $str,"\n";
160                         close($F);
161                 } else {
162                         print STDERR "cant open .title in $dir for writing: $!";
163                 }
164         }
165         return $str;
166 }
167
168 sub subalbum {
169         my ($base,$title)=@_;
170
171         print Tr({-bgcolor=>"#c0c0c0"},
172                 td(a({-href=>$base."/"},$base)),
173                 td(a({-href=>$base."/"},$title))),"\n";
174 }
175
176 sub processfile {
177         my ($start,$dir,$base,$fn)=@_;
178
179         my $info = image_info($fn);
180         if (my $error = $info->{error}) {
181                 if (($error !~ "Unrecognized file format") &&
182                     ($error !~ "Can't read head")) {
183                         print STDERR "File \"$fn\": $error\n";
184                 }
185                 return 0;
186         }
187         my ($w,$h) = dim($info);
188         my $title=$info->{'Comment'};
189         $title=$base unless ($title);
190         my $thumb=&scale($start,$dir,$base,$fn,160,$info);
191         my $medium=&scale($start,$dir,$base,$fn,640,$info);
192         print &infobox($info,$base,$fn),"\n";
193         print table({-class=>'slide'},Tr(td(
194                 a({-href=>".info/$base.html",
195                         -onClick=>"return showIbox('$base');"},$title),
196                 br,
197                 a({-href=>$medium,-rel=>"lightbox",-title=>$title},
198                         img({-src=>$thumb})),
199                 br,
200                 a({-href=>$base},"($w x $h)"),
201                 br))),"\n";
202         #for my $k(keys %$info) {
203         #       print "\t$k:\t$info->{$k}<br>\n";
204         #}
205         return 1;
206 }
207
208 sub infobox {
209         my ($info,$base,$fn)=@_;
210
211         my @infokeys=(
212                 'DateTime',
213                 'ExposureTime',
214                 'FNumber',
215                 'Flash',
216                 'ISOSpeedRatings',
217                 'MeteringMode',
218                 'ExposureProgram',
219                 'FocalLength',
220                 'FileSource',
221                 'Make',
222                 'Model',
223                 'Software',
224         );
225
226         my $msg=start_div({-class=>'ibox',-id=>$base,-OnClick=>"HideIbox('$base');"});
227         $msg.=span({-style=>'float: left;'},"Info for $base").
228                 span({-style=>'float: right;'},
229                         a({-href=>"#",-OnClick=>"HideIbox('$base');"},"Close"));
230         $msg.=br({-clear=>'all'});
231         $msg.=start_table;
232         foreach my $k(@infokeys) {
233                 $msg.=Tr(td($k.":"),td($info->{$k}));
234         }
235         $msg.=end_table;
236         $msg.=end_div;
237         return $msg;
238 }
239
240 sub scale {
241         my ($start,$dir,$base,$fn,$tsize,$info)=@_;
242         my ($w,$h) = dim($info);
243         my $max=($w>$h)?$w:$h;
244         my $factor=$tsize/$max;
245
246         return $base if ($factor >= 1);
247
248         my $tdir=sprintf "%s/%s/.%s",$start,$dir,$tsize;
249         mkdir($tdir,0755) unless ( -d $tdir );
250         my $tbase=sprintf ".%s/%s",$tsize,$base;
251         my $tfn=sprintf "%s/%s",$tdir,$base;
252         my @sstat=stat($fn);
253         my @tstat=stat($tfn);
254         return $tbase if (@tstat && ($sstat[9] < $tstat[9])); # [9] -> mtime
255
256         print STDERR "scale by $factor from $fn to $tfn\n";
257         &doscaling($fn,$tfn,$factor,$w,$h);
258         return $tbase;
259 }
260
261 sub doscaling {
262         my ($src,$dest,$factor,$w,$h)=@_;
263
264         my $im=new Image::Magick;
265         my $err;
266         #print STDERR "doscale $src -> $dest by $factor\n";
267         $err=$im->Read($src);
268         unless ($err) {
269                 $im->Scale(width=>$w*$factor,height=>$h*$factor);
270                 $err=$im->Write($dest);
271                 warn "ImageMagic: write \"$dest\": $err" if ($err);
272         } else {
273                 warn "ImageMagic: read \"$src\": $err";
274                 system("djpeg \"$src\" | pnmscale \"$factor\" | cjpeg >\"$dest\"");
275         }
276         undef $im;
277 }