sfDynamicCMSPlugin: ThumbnailHelper.php

<?php

function getThumbnail($image, $width=null, $height=null, $scale = true, $inflate = true, $quality = 75)
{
    $image_dir=dirname($image);
    $image_file=basename($image);
    
    $source_file=sfConfig::get('sf_upload_dir').'/'.$image_dir.'/'.$image_file;
    if(file_exists(sfConfig::get('sf_upload_dir').'/'.$image_dir.'/'.$image_file))
    {
      $thumbnail_dir='';
      if ($width>0) $thumbnail_dir.=$width;
      if ($height>0) $thumbnail_dir.='x'.$height;
      if (!$scale) $thumbnail_dir.='s';
      if (!$inflate) $thumbnail_dir.='i';
      if ($width>0 || $height>0) $thumbnail_dir.='/';
      
      if (!file_exists(sfConfig::get('sf_upload_dir').'/'.$image_dir.'/'.$thumbnail_dir.$image_file) && ($width!=null || $height!=null))
      {
        if (!is_dir(sfConfig::get('sf_upload_dir').'/'.$image_dir.'/'.$thumbnail_dir))
        {
          mkdir (sfConfig::get('sf_upload_dir').'/'.$image_dir.'/'.$thumbnail_dir,0777);
        }
        
        $path_parts=pathinfo($source_file);
        if(file_exists($source_file) && in_array($path_parts['extension'],array('jpg','jpeg','gif','png')))
        {
          $thumbnail = new sfThumbnail($width, $height,$scale,$inflate,$quality); 
          $thumbnail->loadFile(sfConfig::get('sf_upload_dir').'/'.$image_dir.'/'.$image_file);
          $thumbnail->save(sfConfig::get('sf_upload_dir').'/'.$image_dir.'/'.$thumbnail_dir.$image_file);
        }
      }
      return '/uploads'.'/'.$image_dir.'/'.$thumbnail_dir.$image_file;
    }
    else
    {
      return false;
    }
}

/**
 * Get the path of a generated thumbnail for any given image
 *
 * @param string $source
 * @param int $width
 * @param int $height
 * @param boolean $absolute
 * @return string
 */
function thumbnail_path($source, $width, $height, $absolute = false)
{
  $thumbnails_dir = sfConfig::get('app_sfThumbnail_thumbnails_dir', 'uploads/thumbnails');
  
  $width = intval($width);
  $height = intval($height);
  
  if (substr($source, 0, 1) == '/') {
    $realpath = sfConfig::get('sf_web_dir') . $source;
  } else {
    $realpath = sfConfig::get('sf_web_dir') . '/images/' . $source;
  }
  
  $real_dir = dirname($realpath);
  $thumb_dir = '/' . $thumbnails_dir . substr($real_dir, strlen(sfConfig::get('sf_web_dir')));
  $thumb_name = preg_replace('/^(.*?)(\..+)?$/', '$1_' . $width . 'x' . $height . '$2', basename($source));
  
  $img_from = $realpath;
  $thumb = $thumb_dir . '/' . $thumb_name;
  $img_to = sfConfig::get('sf_web_dir') . $thumb;
  
  if (!is_dir(dirname($img_to))) {
    if (!mkdir(dirname($img_to), 0777, true)) {
      throw new Exception('Cannot create directory for thumbnail : ' . $img_to);
    }
  }
  
  if (!is_file($img_to) || filemtime($img_from) > filemtime($img_to)) {
    $thumbnail = new sfThumbnail($width, $height);
    $thumbnail->loadFile($img_from);
    $thumbnail->save($img_to);
  }
  
  return image_path($thumb, $absolute);
}

/**
 * Get the <img> tag to include a thumbnail into your web page
 *
 * @param string $source
 * @param int $width
 * @param int $height
 * @param mixed $options
 * @return string
 */
function thumbnail_tag($source, $width, $height, $options = array())
{
  $img_src = thumbnail_path($source, $width, $height, false);
  return image_tag($img_src, $options);
}




?>