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  1. <?php
  2. class Thumbnail {
  3.     public $name;
  4.  
  5.     public $crop = false;
  6.  
  7.     public $width;
  8.     public $height;
  9.  
  10.     public $maxWidth;
  11.     public $maxHeight;
  12.  
  13.     public $x = 0;
  14.     public $y = 0;
  15.  
  16.     public $cropX = 0;
  17.     public $cropY = 0;
  18.  
  19.     public $newWidth;
  20.     public $newHeight;
  21.  
  22.     public $newWidth_p;
  23.     public $newHeight_p;
  24.  
  25.     public function __construct($name, $maxWidth, $maxHeight, $crop) {
  26.         $this->name = $name;
  27.         $this->maxWidth = $maxWidth;
  28.         $this->maxHeight = $maxHeight;
  29.         $this->crop = $crop;
  30.     }
  31.  
  32.     public function calculateImage($directory) {
  33.         list($this->width, $this->height) = getimagesize(__DIR__ . '/../uploads/' . $directory . '/' . $this->name);
  34.  
  35.         if ($this->maxWidth == '' || $this->maxWidth > $this->width) $this->maxWidth = $this->width;
  36.         if ($this->maxHeight == '' || $this->maxHeight > $this->height) $this->maxHeight = $this->height;
  37.  
  38.         if ($this->crop) {
  39.             $cropRatioX = $this->maxWidth / $this->width;
  40.             $cropRatioY = $this->maxHeight / $this->height;
  41.             $cropRatio = max(array($cropRatioX, $cropRatioY));
  42.  
  43.             $this->newWidth = round($this->width * $cropRatio);
  44.             $this->newHeight = round($this->height * $cropRatio);
  45.  
  46.             $this->cropX = ($this->newWidth > $this->newHeight) ? ($this->newWidth - $this->maxWidth) / 2 : 0;
  47.             $this->cropY = ($this->newHeight > $this->newWidth) ? ($this->newWidth - $this->maxWidth) / 2 : 0;
  48.  
  49.             $this->x = ($this->maxWidth > $this->maxHeight) ? ($this->cropX / 2) * (-1) : 0;
  50.             $this->y = ($this->maxHeight > $this->maxWidth) ? ($this->cropY / 2) * (-1) : 0;
  51.  
  52.             $this->newWidth_p = $this->maxWidth;
  53.             $this->newHeight_p = $this->maxHeight;          
  54.         } else {
  55.             $ratioY = $this->maxWidth / $this->width;
  56.             $ratioX = $this->maxHeight / $this->height;
  57.             $ratio = min(array($ratioX, $ratioY));
  58.  
  59.             $this->newWidth = round($this->width * $ratio);
  60.             $this->newHeight = round($this->height * $ratio); 
  61.  
  62.             $this->newWidth_p = $this->newWidth;
  63.             $this->newHeight_p = $this->newHeight;              
  64.         }
  65.  
  66.         $thumbnailName = 'thumbnail' . $this->newWidth_p . 'x' . $this->newHeight_p . '_' . $name;
  67.  
  68.         return array($newWidth_p, $newHeight_p, $thumbnailName);   
  69.     }
  70.  
  71.     public function createThumbnail($thumbnailDirectory, $thumbnailName) {
  72.         $image_p = imagecreatetruecolor($this->newWidth_p, $this->newHeight_p);
  73.         $image = imagecreatefromjpeg(__DIR__ . '/../uploads/' . $directory . '/' . $this->name);
  74.  
  75.         imagecopyresampled($image_p, $image, $this->x, $this->y, $this->cropX, $this->cropY, $this->newWidth, $this->newHeight, $this->width, $this->height);
  76.  
  77.         imagejpeg($image_p, __DIR__ . '/../thumbnails/' . $thumbnailDirectory . '/' . $thumbnailName, 100);
  78.     }
  79. }
  80. ?>
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https://ideone.com/5vqHLd
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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