Added option 'shortcut, sc' to enable configuration of complex expressions. Fix #2.

webroot/img.php

@@ -5,6 +5,7 @@
  */
 
 
+
 /**
  * Default configuration options, can be overridden in own config-file.
  *
@@ -115,6 +116,25 @@ if (isset($config['default_timezone'])) {
 
 
 
+/**
+ * shortcut, sc - extend arguments with a constant value, defined
+ * in config-file.
+ */
+$shortcut = get(array('shortcut', 'sc'), null);
+
+verbose("shortcut = $shortcut");
+
+if (isset($shortcut) 
+    && isset($config['shortcut'])
+    && isset($config['shortcut'][$shortcut])) {
+    
+    parse_str($config['shortcut'][$shortcut], $get);
+    verbose("shortcut-constant = {$config['shortcut'][$shortcut]}");
+    $_GET = array_merge($_GET, $get);
+}
+
+
+
 /**
  * verbose, v - do a verbose dump of what happens
  */

webroot/img_config.php

@@ -85,6 +85,15 @@ return array(
 
 
 
+    /**
+     * Create custom shortcuts for more advanced expressions.
+     */
+    'shortcut' => array(
+        'sepia' => "&f=grayscale&f0=brightness,-10&f1=contrast,-20&f2=colorize,120,60,0,0&sharpen",
+    ),
+
+
+
     /**
      * Predefined size constants. 
      *