aboutsummaryrefslogtreecommitdiffstats
path: root/admin/thumbnail.php
blob: e3ab3e9a55d98f6623916c20de2875c3db66e350 (plain)
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
<?php
/***************************************************************************
 *                              thumbnail.php                              *
 *                            -------------------                          *
 *   application   : PhpWebGallery 1.3 <http://phpwebgallery.net>          *
 *   author        : Pierrick LE GALL <pierrick@z0rglub.com>               *
 *                                                                         *
 *   $Id$
 *                                                                         *
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation;                                         *
 *                                                                         *
 ***************************************************************************/
include_once( './include/isadmin.inc.php' );
//------------------------------------------------------------------- functions
// get_subdirs returns an array containing all sub directory names,
// excepting : '.', '..' and 'thumbnail'.
function get_subdirs( $dir )
{
  $sub_dirs = array();
  if ( $opendir = opendir( $dir ) )
  {
    while ( $file = readdir( $opendir ) )
    {
      if ( $file != 'thumbnail' and $file != '.'
           and $file != '..' and is_dir( $dir.'/'.$file ) )
      {
        array_push( $sub_dirs, $file );
      }
    }
  }
  return $sub_dirs;
}

// get_images_without_thumbnail returns an array with all the picture names
// that don't have associated thumbnail in the directory. Each picture name
// is associated with the width, heigh and filesize of the picture.
function get_images_without_thumbnail( $dir )
{
  $images = array();
  if ( $opendir = opendir( $dir ) )
  {
    while ( $file = readdir( $opendir ) )
    {
      $path = $dir.'/'.$file;
      if ( is_image( $path, true ) )
      {
        if ( !TN_exists( $dir, $file ) )
        {
          $image_infos = getimagesize( $path );
          $size = floor( filesize( $path ) / 1024 ). ' KB';
          array_push( $images, array( 'name' => $file,
                                      'width' => $image_infos[0],
                                      'height' => $image_infos[1],
                                      'size' => $size ) );
        }
      }
    }
  }
  return $images;
}

// scandir scans a dir to find pictures without thumbnails. Once found,
// creation of the thumbnails (RatioResizeImg). Only the first $_POST['n']
// pictures without thumbnails are treated.
// scandir returns an array with the generation time of each thumbnail (for
// statistics purpose)
function scandir( $dir, $width, $height )
{
  global $conf;
  $stats = array();
  if ( $opendir = opendir( $dir ) )
  {
    while ( $file = readdir ( $opendir ) )
    {
      $path = $dir.'/'.$file;
      if ( is_image( $path, true ) )
      {
        if ( count( $stats ) < $_POST['n'] and !TN_exists( $dir, $file ) )
        {
          $starttime = get_moment();
          $info = RatioResizeImg( $file, $width, $height, $dir.'/', 'jpg' );
          $endtime = get_moment();
          $info['time'] = ( $endtime - $starttime ) * 1000;
          array_push( $stats, $info );
        }
      }
    }
  }
  return $stats;
}

// RatioResizeImg creates a new picture (a thumbnail since it is supposed to
// be smaller than original picture !) in the sub directory named
// "thumbnail".
function RatioResizeImg( $filename, $newWidth, $newHeight, $path, $tn_ext )
{
  global $conf, $lang;
  // full path to picture
  $filepath = $path.$filename;
  // extension of the picture filename
  $extension = get_extension( $filepath );
  switch( $extension )
  {
  case 'jpg': $srcImage = @imagecreatefromjpeg( $filepath ); break; 
  case 'JPG': $srcImage = @imagecreatefromjpeg( $filepath ); break; 
  case 'png': $srcImage = @imagecreatefrompng(  $filepath ); break; 
  case 'PNG': $srcImage = @imagecreatefrompng(  $filepath ); break; 
  default : unset( $extension ); break;
  }
		
  if ( isset( $srcImage ) )
  {
    // width/height
    $srcWidth    = imagesx( $srcImage ); 
    $srcHeight   = imagesy( $srcImage ); 
    $ratioWidth  = $srcWidth/$newWidth;
    $ratioHeight = $srcHeight/$newHeight;

    // maximal size exceeded ?
    if ( ( $ratioWidth > 1 ) or ( $ratioHeight > 1 ) )
    {
      if ( $ratioWidth < $ratioHeight)
      { 
        $destWidth = $srcWidth/$ratioHeight;
        $destHeight = $newHeight; 
      }
      else
      { 
        $destWidth = $newWidth; 
        $destHeight = $srcHeight/$ratioWidth;
      }
    }
    else
    {
      $destWidth = $srcWidth;
      $destHeight = $srcHeight;
    }
    // according to the GD version installed on the server
    if ( $_POST['gd'] == 2 )
    {
      // GD 2.0 or more recent -> good results (but slower)
      $destImage = imagecreatetruecolor( $destWidth, $destHeight); 
      imagecopyresampled( $destImage, $srcImage, 0, 0, 0, 0,
                          $destWidth,$destHeight,$srcWidth,$srcHeight );
    }
    else
    {
      // GD prior to version  2 -> pretty bad results :-/ (but fast)
      $destImage = imagecreate( $destWidth, $destHeight);
      imagecopyresized( $destImage, $srcImage, 0, 0, 0, 0,
                        $destWidth,$destHeight,$srcWidth,$srcHeight );
    }
			
			
    if( !is_dir( $path.'thumbnail' ) )
    {
      umask( 0000 );
      mkdir( $path.'thumbnail', 0777 );
    }
    $dest_file = $path.'thumbnail/'.$conf['prefix_thumbnail'];
    $dest_file.= get_filename_wo_extension( $filename );
    $dest_file.= '.'.$tn_ext;
			
    // creation and backup of final picture
    imagejpeg( $destImage, $dest_file );
    // freeing memory ressources
    imagedestroy( $srcImage );
    imagedestroy( $destImage );
			
    list( $width,$height ) = getimagesize( $filepath );
    $size = floor( filesize( $filepath ) / 1024 ).' KB';
    list( $tn_width,$tn_height ) = getimagesize( $dest_file );
    $tn_size = floor( filesize( $dest_file ) / 1024 ).' KB';
    $info = array( 'file'      => $filename,
                   'width'     => $width,
                   'height'    => $height,
                   'size'      => $size,
                   'tn_file'   => $dest_file,
                   'tn_width'  => $tn_width,
                   'tn_height' => $tn_height,
                   'tn_size'   => $tn_size );
    return $info;
  }
  // error
  else
  {
    echo $lang['tn_no_support']." ";
    if ( isset( $extenstion ) )
    {
      echo $lang['tn_format'].' '.$extension;
    }
    else
    {
      echo $lang['tn_thisformat'];
    }
    exit();
  }
}

// array_max returns the highest value of the given array
function array_max( $array )
{
  sort( $array, SORT_NUMERIC );
  return array_pop( $array );
}

// array_min returns the lowest value of the given array
function array_min( $array )
{
  sort( $array, SORT_NUMERIC );
  return array_shift( $array );
}

// array_avg returns the average value of the array
function array_avg( $array )
{
  return array_sum( $array ) / sizeof( $array );
}
	
// get_displayed_dirs builds the tree of dirs under "galleries". If a
// directory contains pictures without thumbnails, the become linked to the
// page of thumbnails creation.
function get_displayed_dirs( $dir, $indent )
{
  global $conf,$lang,$vtp,$sub;
		
  $sub_dirs = get_subdirs( $dir );
  // write of the dirs
  foreach ( $sub_dirs as $sub_dir ) {
    $pictures = get_images_without_thumbnail( $dir.'/'.$sub_dir );
    $vtp->addSession( $sub, 'dir' );
    $vtp->setVar( $sub, 'dir.indent', $indent );
    if ( count( $pictures ) > 0 )
    {
      $vtp->addSession( $sub, 'linked' );
      $url = './admin.php?page=thumbnail&amp;dir='.$dir."/".$sub_dir;
      $vtp->setVar( $sub, 'linked.url', add_session_id( $url ) );
      $vtp->setVar( $sub, 'linked.name', $sub_dir );
      $vtp->setVar( $sub, 'linked.nb_pic', count( $pictures ) );
      $vtp->closeSession( $sub, 'linked' );
    }
    else
    {
      $vtp->addSession( $sub, 'unlinked' );
      $vtp->setVar( $sub, 'unlinked.name', $sub_dir );
      $vtp->closeSession( $sub, 'unlinked' );
    }
    $vtp->closeSession( $sub, 'dir' );
    // recursive call
    get_displayed_dirs( $dir.'/'.$sub_dir,
                                $indent+30 );    
  }
}
//----------------------------------------------------- template initialization
$sub = $vtp->Open( '../template/'.$user['template'].'/admin/thumbnail.vtp' );
$tpl = array(
  'tn_dirs_title','tn_dirs_alone','tn_params_title','tn_params_GD',
  'tn_params_GD_info','tn_width','tn_params_width_info','tn_height',
  'tn_params_height_info','tn_params_create','tn_params_create_info',
  'tn_params_format','tn_params_format_info','submit','tn_alone_title',
  'filesize','tn_picture','tn_results_title','thumbnail',
  'tn_results_gen_time','tn_stats','tn_stats_nb','tn_stats_total',
  'tn_stats_max','tn_stats_min','tn_stats_mean' );
templatize_array( $tpl, 'lang', $sub );
$vtp->setGlobalVar( $sub, 'user_template', $user['template'] );
//----------------------------------------------------- miniaturization results
if ( isset( $_GET['dir'] ) )
{
  $pictures = get_images_without_thumbnail( $_GET['dir'] );
  if ( count( $pictures ) == 0 )
  {
    $vtp->addSession( $sub, 'warning' );
    $vtp->closeSession( $sub, 'warning' );
  }
  elseif ( isset( $_POST['submit'] ) )
  {
    // checking criteria
    $errors = array();
    if ( !ereg( "^[0-9]{2,3}$", $_POST['width'] ) or $_POST['width'] < 10 )
    {
      array_push( $errors, $lang['tn_err_width'].' 10' );
    }
    if ( !ereg( "^[0-9]{2,3}$", $_POST['height'] ) or $_POST['height'] < 10 )
    {
      array_push( $errors, $lang['tn_err_height'].' 10' );
    }
    // picture miniaturization
    if ( count( $errors ) == 0 )
    {
      $vtp->addSession( $sub, 'results' );
      $stats = scandir( $_GET['dir'], $_POST['width'], $_POST['height'] );
      $times = array();
      foreach ( $stats as $stat ) {
        array_push( $times, $stat['time'] );
      }
      $max = array_max( $times );
      $min = array_min( $times );
      foreach ( $stats as $i => $stat ) {
        $vtp->addSession( $sub, 'picture' );
        if ( $i % 2 == 1 )
        {
          $vtp->setVar( $sub, 'picture.class', 'row2' );
        }
        $vtp->setVar( $sub, 'picture.num',            ($i+1) );
        $vtp->setVar( $sub, 'picture.file',           $stat['file'] );
        $vtp->setVar( $sub, 'picture.filesize',       $stat['size'] );
        $vtp->setVar( $sub, 'picture.width',          $stat['width'] );
        $vtp->setVar( $sub, 'picture.height',         $stat['height'] );
        $vtp->setVar( $sub, 'picture.thumb_file',     $stat['tn_file'] );
        $vtp->setVar( $sub, 'picture.thumb_filesize', $stat['tn_size'] );
        $vtp->setVar( $sub, 'picture.thumb_width',    $stat['tn_width'] );
        $vtp->setVar( $sub, 'picture.thumb_height',   $stat['tn_height'] );
        $vtp->setVar( $sub, 'picture.time',
                      number_format( $stat['time'], 2, '.', ' ').' ms' );
        if ( $stat['time'] == $max )
        {
          $vtp->setVar( $sub, 'picture.color', 'red' );
        }
        else if ( $stat['time'] == $min )
        {
          $vtp->setVar( $sub, 'picture.color', 'green' );
        }
        $vtp->closeSession( $sub, 'picture' );
      }
      // general statistics
      $vtp->setVar( $sub, 'results.stats_nb', count( $stats ) );
      $vtp->setVar( $sub, 'results.stats_total',
                    number_format( array_sum( $times ), 2, '.', ' ').' ms' );
      $vtp->setVar( $sub, 'results.stats_max',
                    number_format( $max, 2, '.', ' ').' ms' );
      $vtp->setVar( $sub, 'results.stats_min',
                    number_format( $min, 2, '.', ' ').' ms' );
      $vtp->setVar( $sub, 'results.stats_mean',
                    number_format( array_avg( $times ), 2, '.', ' ').' ms' );
      $vtp->closeSession( $sub, 'results' );
    }
    else
    {
      $vtp->addSession( $sub, 'errors' );
      foreach ( $errors as $error ) {
        $vtp->addSession( $sub, 'li' );
        $vtp->setVar( $sub, 'li.li', $error );
        $vtp->closeSession( $sub, 'li' );
      }
      $vtp->closeSession( $sub, 'errors' );
    }
  }
//-------------------------------------------------- miniaturization parameters
  if ( sizeof( $pictures ) != 0 )
  {
    $vtp->addSession( $sub, 'params' );
    $url = './admin.php?page=thumbnail&amp;dir='.$_GET['dir'];
    $vtp->setVar( $sub, 'params.action', add_session_id( $url ) );
    // GD version selected...
    if ( $_POST['gd'] == 1 )
    {
      $vtp->setVar( $sub, 'params.gd1_checked', ' checked="checked"' );
    }
    else
    {
      $vtp->setVar( $sub, 'params.gd2_checked', ' checked="checked"' );
    }
    // width values
    if ( isset( $_POST['width'] ) )
    {
      $vtp->setVar( $sub, 'params.width_value', $_POST['width'] );
    }
    else
    {
      $vtp->setVar( $sub, 'params.width_value', '128' );
    }
    // height value
    if ( isset( $_POST['height'] ) )
    {
      $vtp->setVar( $sub, 'params.height_value', $_POST['height'] );
    }
    else
    {
      $vtp->setVar( $sub, 'params.height_value', '96' );
    }
    // options for the number of picture to miniaturize : "n"
    $options = array( 5,10,20,40 );
    foreach ( $options as $option ) {
      $vtp->addSession( $sub, 'n_option' );
      $vtp->setVar( $sub, 'n_option.option', $option );
      if ( $option == $_POST['n'] )
      {
        $vtp->setVar( $sub, 'n_option.selected', ' selected="selected"' );
      }
      $vtp->closeSession( $sub, 'n_option' );
    }
    $vtp->closeSession( $sub, 'params' );
//---------------------------------------------------------- remaining pictures
    $vtp->addSession( $sub, 'remainings' );
    $pictures = get_images_without_thumbnail( $_GET['dir'] );
    $vtp->setVar( $sub, 'remainings.total', count( $pictures ) );
    foreach ( $pictures as $i => $picture ) {
      $vtp->addSession( $sub, 'remaining' );
      if ( $i % 2 == 1 )
      {
        $vtp->setVar( $sub, 'remaining.class', 'row2' );
      }
      $vtp->setVar( $sub, 'remaining.num',      ($i+1) );
      $vtp->setVar( $sub, 'remaining.file',     $picture['name'] );
      $vtp->setVar( $sub, 'remaining.filesize', $picture['size'] );
      $vtp->setVar( $sub, 'remaining.width',    $picture['width'] );
      $vtp->setVar( $sub, 'remaining.height',   $picture['height'] );
      $vtp->closeSession( $sub, 'remaining' );
    }
    $vtp->closeSession( $sub, 'remainings' );
  }
}
//-------------------------------------------------------------- directory list
else
{
  $vtp->addSession( $sub, 'directory_list' );
  get_displayed_dirs( '../galleries', 60 );
  $vtp->closeSession( $sub, 'directory_list' );
}
//----------------------------------------------------------- sending html code
$vtp->Parse( $handle , 'sub', $sub );
?>