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     public function mw_thumbs_activated(){
   6       return true;
   7     }
   8
   9     public function img_thumb($src, $max_width, $max_height, $thumbs_dir = "", $background_color = array(255, 255, 255), $CROP = false){
  10       if(strlen($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             $CROP
  66           )
  67         ) === false
  68       ){
  69         return false;
  70       }
  71       if(
  72         !$this->data_insert(
  73           array(
  74             "table_name" => "thumbs",
  75             "values" => array(
  76               "src" => $thumb["src"],
  77               "src_width" => $thumb["src_width"],
  78               "src_height" => $thumb["src_height"],
  79               "max_width" => $max_width,
  80               "max_height" => $max_height,
  81               "thumb_file" => $thumb["thumb_file"],
  82               "thumb_width" => $thumb["thumb_width"],
  83               "thumb_height" => $thumb["thumb_height"],
  84               "creation_date" => date("Y-m-d H:i:s")
  85             )
  86           )
  87         )
  88       ){
  89         return false;
  90       }
  91       return $thumb;
  92     }
  93
  94     public function make_thumb(
  95       $src,
  96       $max_width,
  97       $max_height,
  98       $thumbs_dir,
  99       $thumb_file,
 100       $quality = null,
 101       $background_color = array(255, 255, 255),
 102       $CROP = false
 103     ){
 104       $dest = $thumbs_dir.$thumb_file;
 105       if(!($size = @getimagesize($src))) return false;
 106       if($size[0]){
 107         if($size[0] > $size[1]){
 108           $width = $max_width;
 109           $height = ($size[1] * ($width / $size[0]));
 110         }
 111         else{
 112           $height = $max_height;
 113           $width = $size[0] * ($height / $size[1]);
 114         }
 115         $v_ext_path = explode(".", $src);
 116         $ext = $v_ext_path[count($v_ext_path) - 1];
 117         if(strcasecmp($ext, "jpg") == 0 || strcasecmp($ext, "jpeg") == 0)  $ext = "jpg";
 118         elseif(strcasecmp($ext, "gif") == 0)  $ext = "gif";
 119         elseif(strcasecmp($ext, "png") == 0)  $ext = "png";
 120         else $ext = "";
 121         $create_function = "";
 122         $thumb_function = "";
 123         if(strcasecmp($ext, "jpg") == 0){
 124           $create_function = "imagecreatefromjpeg";
 125           $thumb_function = "imagejpeg";
 126         }
 127         elseif(strcasecmp($ext, "gif") == 0){
 128           $create_function = "imagecreatefromgif";
 129           $thumb_function = "imagegif";
 130           $quality = NULL;
 131         }
 132         elseif(strcasecmp($ext, "png") == 0){
 133           $create_function = "imagecreatefrompng";
 134           $thumb_function = "imagepng";
 135         }
 136         if($create_function){
 137           $src_img = $create_function($src);
 138           $thumb_img = imagecreatetruecolor($max_width, $max_height);
 139           $thumb_bkg = imagecolorallocate($thumb_img, $background_color[0], $background_color[1], $background_color[2]);
 140           imagefilledrectangle($thumb_img, 0, 0, $max_width, $max_height, $thumb_bkg);
 141           if($CROP){
 142             if($size[0] < $max_width || $size[1] < $max_height){
 143               $CROP = false;
 144             }
 145             if($width == $max_width && $height == $max_height){
 146               $CROP = false;
 147             }
 148           }
 149           if($CROP){
 150             $dst_x = 0;
 151             $dst_y = 0;
 152             $dst_w = $max_width;
 153             $dst_h = $max_height;
 154             if($width != $max_width){
 155               $r = $max_width / $size[0];
 156               $thumb_cut_height = (($size[1] * $r) - $max_height) / 2;
 157               $img_cut_height = $size[1] * ($thumb_cut_height / $max_height);
 158               $src_x = 0;
 159               $src_y = floor($img_cut_height);
 160               $src_w = $size[0];
 161               $src_h = floor($size[1] - (2 * $img_cut_height));
 162             }
 163             else{
 164               $r = $max_height / $size[1];
 165               $thumb_cut_width = (($size[0] * $r) - $max_width) / 2;
 166               $img_cut_width = $size[0] * ($thumb_cut_width / $max_width);
 167               $src_x = floor($img_cut_width);
 168               $src_y = 0;
 169               $src_w = floor($size[0] - (2 * $img_cut_width));
 170               $src_h = $size[1];
 171             }
 172           }
 173           else{
 174             $dst_x = floor(($max_width - $width) / 2);
 175             $dst_y = floor(($max_height - $height) / 2);
 176             $src_x = 0;
 177             $src_y = 0;
 178             $dst_w = $width;
 179             $dst_h = $height;
 180             $src_w = $size[0];
 181             $src_h = $size[1];
 182           }
 183           imagecopyresampled(
 184             $thumb_img,
 185             $src_img,
 186             $dst_x,
 187             $dst_y,
 188             $src_x,
 189             $src_y,
 190             $dst_w,
 191             $dst_h,
 192             $src_w,
 193             $src_h
 194           );
 195           if(isset($quality)) $thumb_img = $thumb_function($thumb_img, $dest, $quality);
 196           else $thumb_img = $thumb_function($thumb_img, $dest);
 197           if($thumb_img !== false){
 198             return array(
 199               "src" => $src,
 200               "src_width" => $size[0],
 201               "src_height" => $size[1],
 202               "max_width" => $max_width,
 203               "max_height" => $max_height,
 204               "thumb_file" => $thumb_file,
 205               "thumb_width" => $max_width,
 206               "thumb_height" => $max_height,
 207               "creation_date" => date("Y-m-d H:i:s")
 208             );
 209           }
 210         }
 211       }
 212       return false;
 213     }
 214
 215     public function new_thumb_file_name($dest, $file_name, $prefix = "img_"){
 216       $dest .= strlen($dest) > 0 && substr($dest, -1) != "/" ? "/" : "";
 217       if(is_dir($dest)){
 218         $ext = "";
 219         if(strpos($file_name, ".") !== false){
 220           $v_ext_path = explode(".", $file_name);
 221           $ext = ".".$v_ext_path[count($v_ext_path) - 1];
 222         }
 223         $i = 0;
 224         while(file_exists($dest.$prefix.$i.$ext)) $i++;
 225         return $prefix.$i.$ext;
 226       }
 227       return false;
 228     }
 229
 230   }