function canvasactions_file2canvas_effect in ImageCache Actions 7

Same name and namespace in other branches

1. 8 canvasactions/canvasactions.inc \canvasactions_file2canvas_effect()

Image effect callback for the overlay (watermark) image effect.

Parameters

stdClass $image:

array $data:

Return value

boolean true on success, false otherwise.

1 string reference to 'canvasactions_file2canvas_effect'

imagecache_canvasactions_image_effect_info in canvasactions/imagecache_canvasactions.module

Implements hook_image_effect_info().

File

canvasactions/canvasactions.inc, line 729

Code

function canvasactions_file2canvas_effect(stdClass $image, array $data) {
  $overlay = imagecache_actions_image_load($data['path']);
  if ($overlay) {
    if (!empty($data['scale']) && $data['scale'] > 0) {

      // Scale the overlay with respect to the dimensions of the source being
      // overlaid. To maintain the aspect ratio, only the width of the overlay
      // is scaled like that, the height of the overlay follows the aspect
      // ratio (that is why we use image_scale instead of image_resize).
      $overlay_w = $image->info['width'] * $data['scale'] / 100;
      image_scale($overlay, $overlay_w, NULL, TRUE);
    }
    if (!isset($data['alpha'])) {
      $data['alpha'] = 100;
    }
    return image_overlay($image, $overlay, $data['xpos'], $data['ypos'], $data['alpha']);
  }
  return FALSE;
}