function image_gd_resize in Drupal 7

Same name and namespace in other branches

1. 4 includes/image.inc \image_gd_resize()
2. 5 includes/image.inc \image_gd_resize()
3. 6 includes/image.gd.inc \image_gd_resize()

Scale an image to the specified size using GD.

Parameters

$image: An image object. The $image->resource, $image->info['width'], and $image->info['height'] values will be modified by this call.

$width: The new width of the resized image, in pixels.

$height: The new height of the resized image, in pixels.

Return value

TRUE or FALSE, based on success.

See also

image_resize()

Related topics

File

modules/system/image.gd.inc, line 78

GD2 toolkit for image manipulation within Drupal.

Code

function image_gd_resize(stdClass $image, $width, $height) {
  $res = image_gd_create_tmp($image, $width, $height);
  if (!imagecopyresampled($res, $image->resource, 0, 0, 0, 0, $width, $height, $image->info['width'], $image->info['height'])) {
    return FALSE;
  }
  imagedestroy($image->resource);

  // Update image object.
  $image->resource = $res;
  $image->info['width'] = $width;
  $image->info['height'] = $height;
  return TRUE;
}