git.dj3c1t.com Git - mw_thumbs/blob - app/data/modules/share/mw_data_thumbs.php

   1 <?php
   2
   3   class mw_data_thumbs extends mw_data{
   4
   5     function mw_thumbs_activated(){
   6       return true;
   7     }
   8
   9     function img_thumb($src, $max_width, $max_height, $thumbs_dir = "", $background_color = array(255, 255, 255)){
  10       if(strlen($thumbs_dir) > 0){
  11         if(!@is_dir($thumbs_dir)) @mkdir($thumbs_dir);
  12         if(!@is_dir($thumbs_dir)) return false;
  13       }
  14       $thumbs_dir .= strlen($thumbs_dir) > 0 && substr($thumbs_dir, -1) != "/" ? "/" : "";
  15       $thumb_dir = $max_width."x".$max_height."/";
  16       if(!@is_dir($thumbs_dir.$thumb_dir)) @mkdir($thumbs_dir.$thumb_dir);
  17       if(!@is_dir($thumbs_dir.$thumb_dir)) return false;
  18       if(
  19         (
  20           $thumbs = $this->data_list(
  21             array(
  22               "table_name" => "thumbs",
  23               "filters" => array(
  24                 array("src", "eq", $src),
  25                 array("max_width", "eq", $max_width),
  26                 array("max_height", "eq", $max_height)
  27               )
  28             )
  29           )
  30         ) === false
  31       ){
  32         return false;
  33       }
  34       if($thumbs["list"]){
  35         $thumb = reset($thumbs["list"]);
  36         if(file_exists($thumbs_dir.$thumb["thumb_file"])){
  37           return $thumb;
  38         }
  39         if(
  40           !$this->data_delete(
  41             array(
  42               "table_name" => "thumbs",
  43               "index_name" => "id",
  44               "index_value" => $thumb["id"]
  45             )
  46           )
  47         ){
  48           return false;
  49         }
  50       }
  51       if(($thumb_file = $this->new_thumb_file_name($thumbs_dir.$thumb_dir, $src, "img_")) === false){
  52         return false;
  53       }
  54       $thumb_file = $thumb_dir.$thumb_file;
  55       if(
  56         (
  57           $thumb = $this->make_thumb(
  58             $src,
  59             $max_width,
  60             $max_height,
  61             $thumbs_dir,
  62             $thumb_file,
  63             null,
  64             $background_color
  65           )
  66         ) === false
  67       ){
  68         return false;
  69       }
  70       if(
  71         !$this->data_insert(
  72           array(
  73             "table_name" => "thumbs",
  74             "values" => array(
  75               "src" => $thumb["src"],
  76               "src_width" => $thumb["src_width"],
  77               "src_height" => $thumb["src_height"],
  78               "max_width" => $max_width,
  79               "max_height" => $max_height,
  80               "thumb_file" => $thumb["thumb_file"],
  81               "thumb_width" => $thumb["thumb_width"],
  82               "thumb_height" => $thumb["thumb_height"],
  83               "creation_date" => date("Y-m-d H:i:s")
  84             )
  85           )
  86         )
  87       ){
  88         return false;
  89       }
  90       return $thumb;
  91     }
  92
  93     function make_thumb(
  94       $src,
  95       $max_width,
  96       $max_height,
  97       $thumbs_dir,
  98       $thumb_file,
  99       $quality = null,
 100       $background_color = array(255, 255, 255)
 101     ){
 102       $dest = $thumbs_dir.$thumb_file;
 103       if(!($size = @getimagesize($src))) return false;
 104       if($size[0]){
 105         if($size[0] > $size[1]){
 106           $width = $max_width;
 107           $height = ($size[1] * ($width / $size[0]));
 108         }
 109         else{
 110           $height = $max_height;
 111           $width = $size[0] * ($height / $size[1]);
 112         }
 113         $v_ext_path = explode(".", $src);
 114         $ext = $v_ext_path[count($v_ext_path) - 1];
 115         if(strcasecmp($ext, "jpg") == 0 || strcasecmp($ext, "jpeg") == 0)  $ext = "jpg";
 116         elseif(strcasecmp($ext, "gif") == 0)  $ext = "gif";
 117         elseif(strcasecmp($ext, "png") == 0)  $ext = "png";
 118         else $ext = "";
 119         $create_function = "";
 120         $thumb_function = "";
 121         if(strcasecmp($ext, "jpg") == 0){
 122           $create_function = "imagecreatefromjpeg";
 123           $thumb_function = "imagejpeg";
 124         }
 125         elseif(strcasecmp($ext, "gif") == 0){
 126           $create_function = "imagecreatefromgif";
 127           $thumb_function = "imagegif";
 128           $quality = NULL;
 129         }
 130         elseif(strcasecmp($ext, "png") == 0){
 131           $create_function = "imagecreatefrompng";
 132           $thumb_function = "imagepng";
 133         }
 134         if($create_function){
 135           $src_img = $create_function($src);
 136           $thumb_img = imagecreatetruecolor($max_width, $max_height);
 137           $thumb_bkg = imagecolorallocate($thumb_img, $background_color[0], $background_color[1], $background_color[2]);
 138           imagefilledrectangle($thumb_img, 0, 0, $max_width, $max_height, $thumb_bkg);
 139           imagecopyresampled(
 140             $thumb_img,
 141             $src_img,
 142             floor(($max_width - $width) / 2),
 143             floor(($max_height - $height) / 2),
 144             0,
 145             0,
 146             $width,
 147             $height,
 148             $size[0],
 149             $size[1]
 150           );
 151           if(isset($quality)) $thumb_img = $thumb_function($thumb_img, $dest, $quality);
 152           else $thumb_img = $thumb_function($thumb_img, $dest);
 153           if($thumb_img !== false){
 154             return array(
 155               "src" => $src,
 156               "src_width" => $size[0],
 157               "src_height" => $size[1],
 158               "max_width" => $max_width,
 159               "max_height" => $max_height,
 160               "thumb_file" => $thumb_file,
 161               "thumb_width" => $max_width,
 162               "thumb_height" => $max_height,
 163               "creation_date" => date("Y-m-d H:i:s")
 164             );
 165           }
 166         }
 167       }
 168       return false;
 169     }
 170
 171     function new_thumb_file_name($dest, $file_name, $prefix = "img_"){
 172       $dest .= strlen($dest) > 0 && substr($dest, -1) != "/" ? "/" : "";
 173       if(is_dir($dest)){
 174         $ext = "";
 175         if(strpos($file_name, ".") !== false){
 176           $v_ext_path = explode(".", $file_name);
 177           $ext = ".".$v_ext_path[count($v_ext_path) - 1];
 178         }
 179         $i = 0;
 180         while(file_exists($dest.$prefix.$i.$ext)) $i++;
 181         return $prefix.$i.$ext;
 182       }
 183       return false;
 184     }
 185
 186   }
 187
 188 ?>