function imce_resize_image in IMCE 6.2

Same name and namespace in other branches

1. 5 imce.module \imce_resize_image()
2. 6 inc/page.inc \imce_resize_image()
3. 7 inc/imce.page.inc \imce_resize_image()

Resize an image in the file list. Also used for thumbnail creation.

1 call to imce_resize_image()

imce_create_thumbnail in inc/imce.page.inc

Create a thumbnail.

1 string reference to 'imce_resize_image'

imce_resize_submit in inc/imce.page.inc

Submit resize form.

File

inc/imce.page.inc, line 480

Implements the file browser.

Code

function imce_resize_image($filename, &$imce, $width, $height, $copy = TRUE, $dest = FALSE, $op = 'resize') {
  $dirpath = file_directory_path() . ($imce['dir'] == '.' ? '' : '/' . $imce['dir']);
  $filepath = $dirpath . '/' . $filename;

  //check if the file is an image
  if (!$imce['files'][$filename]['width'] || !($img = imce_image_info($filepath))) {
    drupal_set_message(t('%filename is not an image.', array(
      '%filename' => utf8_encode($filename),
    )), 'error', FALSE);
    return FALSE;
  }
  if (substr($op, 0, 5) == 'scale' && !($width < $img['width'] || $height < $img['height'])) {
    drupal_set_message(t('Scaling up is not allowed.'), 'error', FALSE);
    return FALSE;
  }

  //create file object
  $file = new stdClass();
  $file->filepath = $dirpath . '/' . $dest;
  if (!$dest || $dest == $filename) {
    $file->filepath = $copy ? file_create_filename($filename, $dirpath) : $filepath;
  }
  $file->filename = basename($file->filepath);

  //check if a file having the same properties exists already.
  if (isset($imce['files'][$file->filename])) {
    if (($f = $imce['files'][$file->filename]) && $f['width'] == $width && $f['height'] == $height) {
      drupal_set_message(t('%filename(%dimensions) already exists.', array(
        '%filename' => utf8_encode($file->filename),
        '%dimensions' => $width . 'x' . $height,
      )), 'error');
      return FALSE;
    }
  }

  //validate file name
  $errors = file_validate_name_length($file);
  if (!empty($errors)) {
    drupal_set_message($errors[0], 'error');
    return FALSE;
  }

  //resize image to a temp file
  $temp = tempnam(realpath(file_directory_temp()), 'imc');
  register_shutdown_function('file_delete', $temp);
  $function = 'image_' . $op;
  if (!$function($filepath, $temp, $width, $height)) {
    drupal_set_message(t('%filename cannot be resized to %dimensions', array(
      '%filename' => utf8_encode($filename),
      '%dimensions' => $width . 'x' . $height,
    )), 'error', FALSE);
    return FALSE;
  }

  //validate quota
  $file->filesize = filesize($temp);
  $overwrite = $file->filename == $filename;
  if (!imce_validate_quotas($file, $imce, $overwrite ? -$imce['files'][$filename]['size'] : 0)) {
    return FALSE;
  }

  //copy from temp to filepath
  if (!@copy($temp, $file->filepath)) {
    drupal_set_message(t('The selected file %file could not be copied.', array(
      '%file' => utf8_encode($file->filename),
    )), 'error', FALSE);
    return FALSE;
  }
  @chmod($file->filepath, 0664);

  //build the rest of the file object
  $file->uid = $imce['uid'];
  $file->filemime = $img['mime'];
  $file->status = FILE_STATUS_PERMANENT;
  $file->timestamp = time();

  //if we are overwriting the file and it is already in database.
  $update = array();
  if ($overwrite && ($_file = db_fetch_object(db_query("SELECT f.* FROM {files} f WHERE f.filepath = '%s'", $file->filepath)))) {
    $file->fid = $_file->fid;
    $file->uid = $_file->uid;
    $update[] = 'fid';
  }

  //save the file
  drupal_write_record('files', $file, $update);
  imce_file_register($file);

  //update file list

  //if the file was scaled get the new dimensions
  if ($op == 'scale') {
    $img = imce_image_info($file->filepath);
    $width = $img['width'];
    $height = $img['height'];
  }
  $file->width = $width;
  $file->height = $height;
  imce_add_file($file, $imce);
  return $file;
}