dimension.module | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/dimension.module b/dimension.module
index e9a2a6f..5f8d4d8 100644
--- a/dimension.module
+++ b/dimension.module
@@ -22,6 +22,8 @@ function dimension_field_info() {
       'settings' => _dimension_default_field_instance_settings(),
       'default_widget' => 'dimension_widget',
       'default_formatter' => 'dimension_formatter',
+      'property_type' => 'dimensions',
+      'property_callbacks' => array('dimension_field_dimensions_property_callback'),
     ),
   );
 }
@@ -58,6 +60,36 @@ function dimension_field_widget_info() {
 }
 
 /**
+ * Additional callback to adapt the property info for dimensions fields.
+ *
+ * @see entity_metadata_field_entity_property_info()
+ * @see entity_field_info_alter()
+ */
+function dimension_field_dimensions_property_callback(&$info, $entity_type, $field, $instance, $field_type) {
+  $property = &$info[$entity_type]['bundles'][$instance['bundle']]['properties'][$field['field_name']];
+
+  $property['getter callback'] = 'entity_metadata_field_verbatim_get';
+  $property['setter callback'] = 'entity_metadata_field_verbatim_set';
+  unset($property['query callback']);
+
+  $property['property info']['length'] = array(
+    'type' => 'integer',
+    'label' => t('Length'),
+    'setter callback' => 'entity_property_verbatim_set',
+  );
+  $property['property info']['width'] = array(
+    'type' => 'integer',
+    'label' => t('Width'),
+    'setter callback' => 'entity_property_verbatim_set',
+  );
+  $property['property info']['height'] = array(
+    'type' => 'integer',
+    'label' => t('Height'),
+    'setter callback' => 'entity_property_verbatim_set',
+  );
+}
+
+/**
  * Implements hook_field_settings_form().
  */
 function dimension_field_settings_form($field, $instance, $has_data) {