first import

sites/all/modules/imagecache_actions/utility-form.inc

@@ -0,0 +1,60 @@
+<?php
+/**
+ * @file Utility form, conversion and rendering functions for image processes
+ */
+
+/**
+ * Prepare a subform for displaying positioning fields
+ *
+ * Helper function to render a common element.
+ */
+function imagecache_actions_pos_form($action) {
+  $defaults = array(
+    'xpos' => 'center',
+    'ypos' => 'center',
+  );
+  $action = array_merge($defaults, (array) $action);
+
+  $form = array(
+    #'#theme' => 'canvasactions_pos_form',
+    'xpos' => array(
+      '#type' => 'textfield',
+      '#title' => t('X offset'),
+      '#default_value' => $action['xpos'],
+      '#size' => 6,
+      '#description' => t('Enter an offset in pixels or use a keyword: <em>left</em>, <em>center</em>, or <em>right</em>.'),
+      '#element_validate' => array('imagecache_actions_validate_number'),
+    ),
+    'ypos' => array(
+      '#type' => 'textfield',
+      '#title' => t('Y offset'),
+      '#default_value' => $action['ypos'],
+      '#size' => 6,
+      '#description' => t('Enter an offset in pixels or use a keyword: <em>top</em>, <em>center</em>, or <em>bottom</em>.'),
+      '#element_validate' => array('imagecache_actions_validate_number'),
+    ),
+  );
+  return $form;
+}
+
+/**
+ * Ensure the numbers are valid.
+ *
+ * Set blanks to zero, just so the status summary doesn't get odd blanks
+ */
+function imagecache_actions_validate_number(&$element, &$form_state) {
+  if (empty($element['#value'])) {
+    form_set_value($element, 0, $form_state);
+  }
+}
+
+/**
+ * @todo Please document this function.
+ * @see http://drupal.org/node/1354
+ */
+function imagecache_actions_validate_alpha(&$element, &$form_status) {
+  if (!is_numeric($element['#value']) || $element['#value'] < 1 || $element['#value'] > 100) {
+    form_set_error(join('][', $element['#parents']), t('Opacity must be a number between 1 and 100.'));
+  }
+}
+