1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
|
#!/usr/bin/perl
# Copyright © 2009,2010 by Daniel Friesel <derf@derf.homelinux.org>
# License: WTFPL <http://sam.zoy.org/wtfpl>
use strict;
use warnings;
use constant {
DEFAULT_FILEMODE => oct(644),
};
use Archive::Tar;
use Cwd;
use Getopt::Long;
use Image::Imlib2;
my $directory = '.';
my $thumbdir = "$directory/.thumbs";
my $indexfile = "$directory/index.xhtml";
my $lightboxfile = "$directory/lightbox.js";
my $title = '';
my $css_line = '';
my $thumb_max_dim = 200;
my $thumb_quality = 75;
my $thumb_spacing = 1.1;
my $thumb_no_names = 0;
my $css_source;
my ($dx, $dy);
my @files;
my $number = 0;
my $create_archive = 0;
my $tar = Archive::Tar->new();
local $| = 1;
sub print_progress {
if (($number % 60) == 0) {
if ($number) {
printf(" %4d/%d\n", $number, scalar(@files));
}
printf('[%3d%%] ', $number * 100 / @files);
} elsif (($number % 10) == 0) {
print ' ';
}
return;
}
GetOptions(
'c|css=s' => \$css_source,
'd|size=i' => \$thumb_max_dim,
's|spacing=f' => \$thumb_spacing,
'n|no-names' => \$thumb_no_names,
't|title=s' => \$title,
'q|quality=i' => \$thumb_quality,
'x|archive' => \$create_archive,
);
if (@ARGV > 0) {
$directory = shift;
}
if (defined($css_source)) {
$css_line = "<link rel=\"stylesheet\" type=\"text/css\" href=\"$css_source\"/>";
}
open(my $lightbox, '>', $lightboxfile) or die("Cannot open $lightboxfile for writing: $!");
while (my $line = <DATA>) {
print {$lightbox} $line;
}
close($lightbox);
open(my $index, '>', $indexfile) or die("Cannot open $indexfile for writing: $!");
print $index <<"EOD";
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>$title</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
$css_line
<script type="text/javascript" src="lightbox.js"></script>
<style type="text/css">
#lightbox {
background-color:#eee;
padding: 10px;
border-bottom: 2px solid #666;
border-right: 2px solid #666;
}
#lightboxDetails {
font-size: 0.8em;
padding-top: 0.4em;
}
#lightboxCaption {
float: left;
}
#keyboardMsg {
float: right;
}
#closeButton {
top: 5px;
right: 5px;
}
#lightbox img {
border: none;
clear: both;
}
#overlay img {
border: none;
}
#overlay {
color: transparent;
/* background-image: url(overlay.png); */
}
</style>
</head>
<body><div>
EOD
if (! -d $thumbdir) {
mkdir($thumbdir) or die("cannot create $thumbdir: $!");
}
opendir(my $dirhandle, $directory) or die("Cannot open directory $directory: $!");
foreach my $file (readdir($dirhandle)) {
if ($file =~ / \. ( png | jp e? g ) $ /ix) {
push(@files, $file);
}
}
closedir($dirhandle);
@files = sort { lc($a) cmp lc($b) } @files;
if ($create_archive) {
print "Adding files to tar archive\n";
$tar->add_files(@files);
}
print "Generating thumbnails [ - cached | + generated ]\n";
foreach my $file (@files) {
my $thumb;
if (defined($css_source)) {
print {$index} '<div class="imgbox">';
}
else {
printf {$index} (
'<div style="%s; %s; %s; width: %dpx; height: %dpx">',
'text-align: center',
'font-size: 80%',
'float: left',
$thumb_max_dim * $thumb_spacing,
($thumb_max_dim * $thumb_spacing) + ($thumb_no_names ? 0 : 10),
);
}
print {$index} "<a rel=\"lightbox\" href=\"$file\"><img src=\".thumbs/$file\" alt=\"$file\" /></a>\n";
if (not $thumb_no_names) {
print {$index} "<br />\n";
if ($css_source) {
print {$index}
"<a class=\"textlink\" href=\"${file}\">${file}</a>";
}
else {
printf {$index} (
'<a style="%s" href="%s">%s</a>',
'text-decoration: none;',
$file,
$file,
);
}
}
print {$index} "</div>\n";
print_progress;
$number++;
if (-e "$thumbdir/$file") {
print '-';
next;
}
my $image = Image::Imlib2->load($file);
($dx, $dy) = ($image->width, $image->height);
if ($dx > $thumb_max_dim or $dy > $thumb_max_dim) {
if ($dx > $dy) {
$thumb = $image->create_scaled_image($thumb_max_dim, 0);
}
else {
$thumb = $image->create_scaled_image(0, $thumb_max_dim);
}
}
else {
$thumb = $image;
}
$thumb->set_quality($thumb_quality);
$thumb->save("$thumbdir/$file");
chmod(DEFAULT_FILEMODE, "$thumbdir/$file");
print '+';
}
print "\n";
if ($create_archive) {
print "Writing tar archive to disk\n";
$tar->write('images.tar', undef, (split(qr{/}, getcwd))[-1]);
print $index "</div><div style=\"clear: left;\"><a href=\"images.tar\">archive</a>\n";
}
print $index <<'EOD';
</div></body>
</html>
EOD
close($index) or die("Cannot close $indexfile: $!");
chmod(DEFAULT_FILEMODE, $indexfile);
=head1 NAME
gen-xhtml-thumbnails - Generate Thumbnails + Index for a set of images
=head1 SYNOPSIS
B<gen-xhtml-thumbnails> [I<options>] [I<directory>]
=head1 DESCRIPTION
gen-xhtml-thumbnails will create an F<index.xhtml> with a list (thumbnails) of
all images found if I<directory>; the thumbnails will link to the images.
The F<index.xhtml> file will always be created in I<directory>.
The thumbnails will be saved in F<.thumbs>, also in I<directory>.
If I<directory> is not specified, the current directory is used.
Note that only the images in the directory itself will be processed, recursion
is not supported.
=head1 OPTIONS
=over
=item B<-x>, B<--archive>
Create (and link) an "image.tar" archive containing all full-size image files.
All but the last directories in the files' path are stripped, besides that the
directory structure is preserved. So, if you run gen-xhtml-thumbnails -x in
.../mydir/, the archive will contain mydir/1.jpg, mydir/2.jpg etc.
=item B<-c>, B<--css> I<file>
Use I<file> for css definitions
=item B<-n>, B<--no-names>
Do not show image names below thumbnails
=item B<-d>, B<--size> I<pixels>
Maximum thumbnail size (either width or height). Defaults to 200
=item B<-s>, B<--spacing> I<float>
Use I<float> as spacing factor.
The size of each image element (image + possible border around it) is the
number of pixels (see --size) times I<float>.
So for B<1.1> you have a small border around each image, for B<1.0> you have
no border at all, etc.
=item B<-t>, B<--title> I<title>
Use I<title> as <title> for the XHTML output
=item B<-q>, B<--quality> I<int>
Set thumbnail quality.
Accepts values between 0 and 100, where 100 is the highest possible quality
=back
=head1 EXIT STATUS
Zero upon success, non-zero otherwise.
=head1 CONFIGURATION
None.
=head1 DEPENDENCIES
B<gen-xhtml-thumbnails> requires the Image::Imlib2 perl module.
=head1 BUGS AND LIMITATIONS
There is no detection for changed images, the thumbnails of deleted images are
not removed.
=head1 AUTHOR
Copyright (C) 2009, 2010 by Daniel Friesel E<gt>derf@chaosdorf.deE<lt>
The lightbox code is (C) by Lokesh Dhakar
E<gt>http://huddletogether.com/projects/lightbox/E<lt>, licensed under
CC-BY-2.5
=head1 LICENSE
0. You just DO WHAT THE FUCK YOU WANT TO
=cut
__DATA__
/*
Lightbox JS: Fullsize Image Overlays
by Lokesh Dhakar - http://www.huddletogether.com
For more information on this script, visit:
http://huddletogether.com/projects/lightbox/
Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
(basically, do anything you want, just leave my name and link)
Table of Contents
-----------------
Configuration
Functions
- getPageScroll()
- getPageSize()
- pause()
- getKey()
- listenKey()
- showLightbox()
- hideLightbox()
- initLightbox()
- addLoadEvent()
Function Calls
- addLoadEvent(initLightbox)
*/
//
// Configuration
//
// If you would like to use a custom loading image or close button reference them in the next two lines.
var loadingImage = 'loading.gif';
var closeButton = 'close.gif';
//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll(){
var yScroll;
if (self.pageYOffset) {
yScroll = self.pageYOffset;
} else if (document.documentElement && document.documentElement.scrollTop){ // Explorer 6 Strict
yScroll = document.documentElement.scrollTop;
} else if (document.body) {// all other Explorers
yScroll = document.body.scrollTop;
}
arrayPageScroll = new Array('',yScroll)
return arrayPageScroll;
}
//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize(){
var xScroll, yScroll;
if (window.innerHeight && window.scrollMaxY) {
xScroll = document.body.scrollWidth;
yScroll = window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
xScroll = document.body.scrollWidth;
yScroll = document.body.scrollHeight;
} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
xScroll = document.body.offsetWidth;
yScroll = document.body.offsetHeight;
}
var windowWidth, windowHeight;
if (self.innerHeight) { // all except Explorer
windowWidth = self.innerWidth;
windowHeight = self.innerHeight;
} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
windowWidth = document.documentElement.clientWidth;
windowHeight = document.documentElement.clientHeight;
} else if (document.body) { // other Explorers
windowWidth = document.body.clientWidth;
windowHeight = document.body.clientHeight;
}
// for small pages with total height less then height of the viewport
if(yScroll < windowHeight){
pageHeight = windowHeight;
} else {
pageHeight = yScroll;
}
// for small pages with total width less then width of the viewport
if(xScroll < windowWidth){
pageWidth = windowWidth;
} else {
pageWidth = xScroll;
}
arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
return arrayPageSize;
}
//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
//
function pause(numberMillis) {
var now = new Date();
var exitTime = now.getTime() + numberMillis;
while (true) {
now = new Date();
if (now.getTime() > exitTime)
return;
}
}
//
// getKey(key)
// Gets keycode. If 'x' is pressed then it hides the lightbox.
//
function getKey(e){
if (e == null) { // ie
keycode = event.keyCode;
} else { // mozilla
keycode = e.which;
}
key = String.fromCharCode(keycode).toLowerCase();
if(key == 'x'){ hideLightbox(); }
}
//
// listenKey()
//
function listenKey () { document.onkeypress = getKey; }
//
// showLightbox()
// Preloads images. Pleaces new image in lightbox then centers and displays.
//
function showLightbox(objLink)
{
// prep objects
var objOverlay = document.getElementById('overlay');
var objLightbox = document.getElementById('lightbox');
var objCaption = document.getElementById('lightboxCaption');
var objImage = document.getElementById('lightboxImage');
var objLoadingImage = document.getElementById('loadingImage');
var objLightboxDetails = document.getElementById('lightboxDetails');
var arrayPageSize = getPageSize();
var arrayPageScroll = getPageScroll();
// center loadingImage if it exists
if (objLoadingImage) {
objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px');
objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px');
objLoadingImage.style.display = 'block';
}
// set height of Overlay to take up whole page and show
objOverlay.style.height = (arrayPageSize[1] + 'px');
objOverlay.style.display = 'block';
// preload image
imgPreload = new Image();
imgPreload.onload=function(){
objImage.src = objLink.href;
// center lightbox and make sure that the top and left values are not negative
// and the image placed outside the viewport
var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2);
var lightboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2);
objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";
objLightboxDetails.style.width = imgPreload.width + 'px';
if(objLink.getAttribute('title')){
objCaption.style.display = 'block';
//objCaption.style.width = imgPreload.width + 'px';
objCaption.innerHTML = objLink.getAttribute('title');
} else {
objCaption.style.display = 'none';
}
// A small pause between the image loading and displaying is required with IE,
// this prevents the previous image displaying for a short burst causing flicker.
if (navigator.appVersion.indexOf("MSIE")!=-1){
pause(250);
}
if (objLoadingImage) { objLoadingImage.style.display = 'none'; }
// Hide select boxes as they will 'peek' through the image in IE
selects = document.getElementsByTagName("select");
for (i = 0; i != selects.length; i++) {
selects[i].style.visibility = "hidden";
}
objLightbox.style.display = 'block';
// After image is loaded, update the overlay height as the new image might have
// increased the overall page height.
arrayPageSize = getPageSize();
objOverlay.style.height = (arrayPageSize[1] + 'px');
// Check for 'x' keypress
listenKey();
return false;
}
imgPreload.src = objLink.href;
}
//
// hideLightbox()
//
function hideLightbox()
{
// get objects
objOverlay = document.getElementById('overlay');
objLightbox = document.getElementById('lightbox');
// hide lightbox and overlay
objOverlay.style.display = 'none';
objLightbox.style.display = 'none';
// make select boxes visible
selects = document.getElementsByTagName("select");
for (i = 0; i != selects.length; i++) {
selects[i].style.visibility = "visible";
}
// disable keypress listener
document.onkeypress = '';
}
//
// initLightbox()
// Function runs on window load, going through link tags looking for rel="lightbox".
// These links receive onclick events that enable the lightbox display for their targets.
// The function also inserts html markup at the top of the page which will be used as a
// container for the overlay pattern and the inline image.
//
function initLightbox()
{
if (!document.getElementsByTagName){ return; }
var anchors = document.getElementsByTagName("a");
// loop through all anchor tags
for (var i=0; i<anchors.length; i++){
var anchor = anchors[i];
if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "lightbox")){
anchor.onclick = function () {showLightbox(this); return false;}
}
}
// the rest of this code inserts html at the top of the page that looks like this:
//
// <div id="overlay">
// <a href="#" onclick="hideLightbox(); return false;"><img id="loadingImage" /></a>
// </div>
// <div id="lightbox">
// <a href="#" onclick="hideLightbox(); return false;" title="Click anywhere to close image">
// <img id="closeButton" />
// <img id="lightboxImage" />
// </a>
// <div id="lightboxDetails">
// <div id="lightboxCaption"></div>
// <div id="keyboardMsg"></div>
// </div>
// </div>
var objBody = document.getElementsByTagName("body").item(0);
// create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
var objOverlay = document.createElement("div");
objOverlay.setAttribute('id','overlay');
objOverlay.onclick = function () {hideLightbox(); return false;}
objOverlay.style.display = 'none';
objOverlay.style.position = 'absolute';
objOverlay.style.top = '0';
objOverlay.style.left = '0';
objOverlay.style.zIndex = '90';
objOverlay.style.width = '100%';
objBody.insertBefore(objOverlay, objBody.firstChild);
var arrayPageSize = getPageSize();
var arrayPageScroll = getPageScroll();
// preload and create loader image
var imgPreloader = new Image();
// if loader image found, create link to hide lightbox and create loadingimage
imgPreloader.onload=function(){
var objLoadingImageLink = document.createElement("a");
objLoadingImageLink.setAttribute('href','#');
objLoadingImageLink.onclick = function () {hideLightbox(); return false;}
objOverlay.appendChild(objLoadingImageLink);
var objLoadingImage = document.createElement("img");
objLoadingImage.src = loadingImage;
objLoadingImage.setAttribute('id','loadingImage');
objLoadingImage.style.position = 'absolute';
objLoadingImage.style.zIndex = '150';
objLoadingImageLink.appendChild(objLoadingImage);
imgPreloader.onload=function(){}; // clear onLoad, as IE will flip out w/animated gifs
return false;
}
imgPreloader.src = loadingImage;
// create lightbox div, same note about styles as above
var objLightbox = document.createElement("div");
objLightbox.setAttribute('id','lightbox');
objLightbox.style.display = 'none';
objLightbox.style.position = 'absolute';
objLightbox.style.zIndex = '100';
objBody.insertBefore(objLightbox, objOverlay.nextSibling);
// create link
var objLink = document.createElement("a");
objLink.setAttribute('href','#');
objLink.setAttribute('title','Click to close');
objLink.onclick = function () {hideLightbox(); return false;}
objLightbox.appendChild(objLink);
// preload and create close button image
var imgPreloadCloseButton = new Image();
// if close button image found,
imgPreloadCloseButton.onload=function(){
var objCloseButton = document.createElement("img");
objCloseButton.src = closeButton;
objCloseButton.setAttribute('id','closeButton');
objCloseButton.style.position = 'absolute';
objCloseButton.style.zIndex = '200';
objLink.appendChild(objCloseButton);
return false;
}
imgPreloadCloseButton.src = closeButton;
// create image
var objImage = document.createElement("img");
objImage.setAttribute('id','lightboxImage');
objLink.appendChild(objImage);
// create details div, a container for the caption and keyboard message
var objLightboxDetails = document.createElement("div");
objLightboxDetails.setAttribute('id','lightboxDetails');
objLightbox.appendChild(objLightboxDetails);
// create caption
var objCaption = document.createElement("div");
objCaption.setAttribute('id','lightboxCaption');
objCaption.style.display = 'none';
objLightboxDetails.appendChild(objCaption);
// create keyboard message
var objKeyboardMsg = document.createElement("div");
objKeyboardMsg.setAttribute('id','keyboardMsg');
objKeyboardMsg.innerHTML = 'press <a href="#" onclick="hideLightbox(); return false;"><kbd>x</kbd></a> to close';
objLightboxDetails.appendChild(objKeyboardMsg);
}
//
// addLoadEvent()
// Adds event to window.onload without overwriting currently assigned onload functions.
// Function found at Simon Willison's weblog - http://simon.incutio.com/
//
function addLoadEvent(func)
{
var oldonload = window.onload;
if (typeof window.onload != 'function'){
window.onload = func;
} else {
window.onload = function(){
oldonload();
func();
}
}
}
addLoadEvent(initLightbox); // run initLightbox onLoad
|
