build/testcases/NP_ImageCreateThumbnail.php

   1 <?php
   2
   3 class NP_ImageCreateThumbnail extends NucleusPlugin {
   4
   5 /*
   6  * Nucleus Plugin
   7  *
   8  * Copyright 2007 by Kai Greve
   9  *
  10  * This program is free software and open source software; you can redistribute
  11  * it and/or modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of the License,
  13  * or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful, but WITHOUT
  16  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  18  * more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA  or visit
  23  * http://www.gnu.org/licenses/gpl.html
  24  *
  25  *
  26  * NP_ImageCreateThumbnail creates a thumbnail after an image is uploaded,
  27  * it demonstrates the uages of the PostMediaUpload event
  28  *
  29  * History:
  30  * v0.01: 2007-01-01
  31  *      - initial release
  32  *
  33  */
  34
  35         function getName()                { return 'NP_ImageCreateThumbnail'; }
  36         function getAuthor()      { return 'Kai Greve'; }
  37         function getURL()                 { return 'http://www.nucleuscms.org/'; }
  38         function getVersion()     { return '0.01'; }
  39         function getDescription() { return 'Generates Thumbnails after an image is uploaded.';  }
  40
  41         function getMinNucleusVersion() { return 330; }
  42
  43         function supportsFeature($what) {
  44                 switch($what)
  45                 { case 'SqlTablePrefix':
  46                                 return 1;
  47                         default:
  48                                 return 0; }
  49         }
  50
  51         function install() {
  52                 $this->createOption ('thumbsize', 'Maximal width (landscape format) or height (portrait format) for Thumbnails', 'text', '150');
  53         }
  54
  55         function unInstall() {
  56         }
  57
  58         function getEventList() {
  59                 return array('PostMediaUpload');
  60         }
  61
  62
  63         function event_PostMediaUpload(&$data) {
  64
  65                 $collection = $data['collection'];
  66         $mediadir = $data['mediadir'];
  67         $filename = $data['filename'];
  68         $fullpath = $mediadir.$filename;
  69
  70         // evaluate the filetype from the filename
  71                 $filetype = strtolower(substr($filename, strpos($filename, ".")+1));
  72
  73                 // filetype is jpeg
  74                 if ($filetype=='jpg' || $filetype=='jpeg') {
  75
  76                         $size = getimagesize($fullpath);
  77
  78                         $ratio = $size[1]/$size[0]; // ratio = height / width
  79
  80                         if ($ratio < 1) {
  81                                 $new_height = $this->getOption('thumbsize') * $size[1]/$size[0];
  82                                 $new_width = $this->getOption('thumbsize');
  83                         }
  84                         else {
  85                                 $new_height = $this->getOption('thumbsize');
  86                                 $new_width = $this->getOption('thumbsize') * $size[0]/$size[1];
  87                         }
  88
  89                 $image_orig = imagecreatefromjpeg($fullpath);
  90                         $image_new = imagecreatetruecolor($new_width, $new_height);
  91
  92                         imagecopyresampled($image_new, $image_orig, 0, 0, 0, 0, $new_width, $new_height, $size[0], $size[1]);
  93
  94                         $thumbfilename = substr($fullpath, 0, strpos($fullpath, ".")).'_thumb.'.$filetype;
  95
  96                         imagejpeg ($image_new , $thumbfilename);
  97
  98                         // clear the memory
  99                         imagedestroy($image_orig);
 100                         imagedestroy($image_new);
 101                 }
 102
 103                 // filetype is png
 104                 if ($filetype=='png') {
 105
 106                         $size = getimagesize($fullpath);
 107
 108                         $ratio = $size[1]/$size[0]; // ratio = height / width
 109
 110                         if ($ratio < 1) {
 111                                 $new_height = $this->getOption('thumbsize') * $size[1]/$size[0];
 112                                 $new_width = $this->getOption('thumbsize');
 113                         }
 114                         else {
 115                                 $new_height = $this->getOption('thumbsize');
 116                                 $new_width = $this->getOption('thumbsize') * $size[0]/$size[1];
 117                         }
 118
 119                 $image_orig = imagecreatefrompng($fullpath);
 120                         $image_new = imagecreatetruecolor($new_width, $new_height);
 121
 122                         imagecopyresampled($image_new, $image_orig, 0, 0, 0, 0, $new_width, $new_height, $size[0], $size[1]);
 123
 124                         $thumbfilename = substr($fullpath, 0, strpos($fullpath, ".")).'_thumb.'.$filetype;
 125
 126                         imagepng ($image_new , $thumbfilename);
 127
 128                         // clear the memory
 129                         imagedestroy($image_orig);
 130                         imagedestroy($image_new);
 131                 }
 132         }
 133 }
 134
 135 ?>