1: <?php
  2: /**
  3:  * Klutz Image Class
  4:  *
  5:  * @author Marcus I. Ryan <marcus@riboflavin.net>
  6:  * @package Klutz
  7:  */
  8: class Klutz_Image
  9: {
 10:     /**
 11:      * The name of the file the image is stored in (if it's stored locally)
 12:      *
 13:      * @var string
 14:      */
 15:     var $file = null;
 16: 
 17:     /**
 18:      * The image data itself (binary)
 19:      *
 20:      * @var string
 21:      */
 22:     var $data = null;
 23: 
 24:     /**
 25:      * The height of the image in pixels
 26:      *
 27:      * @var integer
 28:      */
 29:     var $height = null;
 30: 
 31:     /**
 32:      * The width of the image in pixels
 33:      *
 34:      * @var integer
 35:      */
 36:     var $width = null;
 37: 
 38:     /**
 39:      * The mime type of the image
 40:      *
 41:      * @var string
 42:      */
 43:     var $type = null;
 44: 
 45:     /**
 46:      * The attributes to use in an <img> tag to define the size
 47:      * (e.g. height="120" width="400")
 48:      *
 49:      * @var string
 50:      */
 51:     var $size = null;
 52: 
 53:     /**
 54:      * The last modified time of the file (only used if file is local).
 55:      *
 56:      * @var integer
 57:      */
 58:     var $lastmodified = 0;
 59: 
 60:     /**
 61:      * Constructor - Based on the information passed, loads an image,
 62:      *  determines the size and type, etc., and stores the information in
 63:      *  the various public properties.  Any optional parameters not passed
 64:      *  in are calculated to the best of our ability.
 65:      *
 66:      * @param string $image    Either raw image data or a filename
 67:      * @param string $type     Image MIME type (e.g. image/jpeg)
 68:      * @param integer $height  Height of the image in pixels
 69:      * @param integer $width   Width of the image in pixels
 70:      */
 71:     function Klutz_Image($image, $type = null, $height = null, $width = null)
 72:     {
 73:         $argc = 1;
 74:         if (!is_null($height)) {
 75:             $argc++;
 76:             $this->height = $height;
 77:         }
 78:         if (!is_null($width)) {
 79:             $argc++;
 80:             $this->width = $width;
 81:         }
 82:         if (!is_null($type)) {
 83:             $argc++;
 84:             $this->type = $type;
 85:         }
 86: 
 87:         $image_info = @getimagesize($image);
 88: 
 89:         // if $image_info is false, then $image doesn't point to a file name
 90:         if ($image_info === false) {
 91:             $this->data = $image;
 92: 
 93:             // If we need to use getimagesize and we were passed data
 94:             // write it to a tempfile so getimagesize will work.
 95:             if ($argc < 4) {
 96:                 $tmpfile = Horde::getTempFile('klutz');
 97:                 $fp = fopen($tmpfile, 'wb+');
 98:                 fwrite($fp, $image);
 99:                 fclose($fp);
100:                 $image_info = @getimagesize($tmpfile);
101: 
102:                 // if $image_info is false, it's an invalid image...
103:                 if ($image_info === false) {
104:                     return null;
105:                 }
106:             }
107:         } else {
108:             $this->file = $image;
109:             $this->lastmodified = filemtime($this->file);
110:             $this->data = file_get_contents($image);
111:         }
112: 
113:         if (is_null($this->height)) {
114:             $this->height = $image_info[KLUTZ_FLD_HEIGHT];
115:         }
116:         if (is_null($this->width)) {
117:             $this->width = $image_info[KLUTZ_FLD_WIDTH];
118:         }
119:         if (is_null($this->type)) {
120:             global $klutz;
121:             $this->type = $klutz->image_types[$image_info[KLUTZ_FLD_TYPE]];
122:         }
123: 
124:         $this->size = '';
125:         if (!empty($this->height)) {
126:             $this->size = ' height="' . $this->height . '"';
127:         }
128:         if (!empty($this->width)) {
129:             $this->size .= ' width="' . $this->width . '"';
130:         }
131:     }
132: 
133: }
134: