This path requires the upgrader to be run and applies the following changes:

* moves the composite method back into core
* requires that the operation be fully qualified i.e. gallery_graphics::resize
* caches the graphics rules on each request

1 files changed, 55 insertions, 0 deletions

diff --git a/modules/gallery/helpers/gallery_graphics.php b/modules/gallery/helpers/gallery_graphics.php
index f62fbf97..bdd600c5 100644
--- a/modules/gallery/helpers/gallery_graphics.php
+++ b/modules/gallery/helpers/gallery_graphics.php
@@ -51,4 +51,59 @@ class gallery_graphics_Core {
 
     module::event("graphics_resize_completed", $input_file, $output_file, $options);
   }
+
+  /**
+   * Overlay an image on top of the input file.
+   *
+   * Valid options are: file, mime_type, position, transparency_percent, padding
+   *
+   * Valid positions: northwest, north, northeast,
+   *                  west, center, east,
+   *                  southwest, south, southeast
+   *
+   * padding is in pixels
+   *
+   * @param string     $input_file
+   * @param string     $output_file
+   * @param array      $options
+   */
+  static function composite($input_file, $output_file, $options) {
+    try {
+      graphics::init_toolkit();
+
+      module::event("graphics_composite", $input_file, $output_file, $options);
+
+      list ($width, $height) = getimagesize($input_file);
+      list ($w_width, $w_height) = getimagesize($options["file"]);
+
+      $pad = isset($options["padding"]) ? $options["padding"] : 10;
+      $top = $pad;
+      $left = $pad;
+      $y_center = max($height / 2 - $w_height / 2, $pad);
+      $x_center = max($width / 2 - $w_width / 2, $pad);
+      $bottom = max($height - $w_height - $pad, $pad);
+      $right = max($width - $w_width - $pad, $pad);
+
+      switch ($options["position"]) {
+      case "northwest": $x = $left;     $y = $top;       break;
+      case "north":     $x = $x_center; $y = $top;       break;
+      case "northeast": $x = $right;    $y = $top;       break;
+      case "west":      $x = $left;     $y = $y_center;  break;
+      case "center":    $x = $x_center; $y = $y_center;  break;
+      case "east":      $x = $right;    $y = $y_center;  break;
+      case "southwest": $x = $left;     $y = $bottom;    break;
+      case "south":     $x = $x_center; $y = $bottom;    break;
+      case "southeast": $x = $right;    $y = $bottom;    break;
+      }
+
+      Image::factory($input_file)
+        ->composite($options["file"], $x, $y, $options["transparency"])
+        ->quality(module::get_var("gallery", "image_quality"))
+        ->save($output_file);
+
+      module::event("graphics_composite_completed", $input_file, $output_file, $options);
+    } catch (ErrorException $e) {
+      Kohana::log("error", $e->get_message());
+    }
+  }
 }