function image_imagemagick_definecanvas in ImageCache Actions 7

Same name and namespace in other branches

1. 8 canvasactions/canvasactions.inc \image_imagemagick_definecanvas()

Imagemagick toolkit specific implementation of the define canvas effect.

Parameters

stdClass $image:

array $data: The parameters for this effect. $data['targetsize'] is an array expected to contain a width, height and a left, top.

Return value

bool true on success, false otherwise.

See also

http://www.imagemagick.org/script/command-line-options.php#extent

File

canvasactions/canvasactions.inc, line 416

Code

function image_imagemagick_definecanvas(stdClass $image, $data) {

  // Reset any gravity settings from earlier effects.
  $image->ops[] = '-gravity None';
  $backgroundcolor = $data['RGB']['HEX'] != '' ? '#' . ltrim($data['RGB']['HEX'], '#') : 'None';
  $image->ops[] = '-background ' . escapeshellarg($backgroundcolor);
  $compose_operator = $data['under'] ? 'src-over' : 'dst-over';
  $image->ops[] = "-compose {$compose_operator}";
  $target_size = $data['targetsize'];
  $geometry = sprintf('%dx%d', $target_size['width'], $target_size['height']);
  if ($target_size['left'] || $target_size['top']) {
    $geometry .= sprintf('%+d%+d', -$target_size['left'], -$target_size['top']);
  }
  $image->ops[] = '-extent ' . escapeshellarg($geometry);
  return TRUE;
}