Merge branch 'subtree'

diff --combined src/be/nikiroo/utils/resources/Meta.java
index 8ed74dc565b9994f1a6ec7a1b530525dbcd4bdbb,fb4d4915015e2c1efbf4021c8dd7ef4d2623c98e..fb4d4915015e2c1efbf4021c8dd7ef4d2623c98e
--- 1/src/be/nikiroo/utils/resources/Meta.java
--- 2/resources/Meta.java
+++ b/src/be/nikiroo/utils/resources/Meta.java
@@@ -60,6 -60,16 +60,16 @@@ public @interface Meta 
         * @return what it is
         */
        String description() default "";
+       
+       /**
+        * This item should be hidden from the user (she will still be able to
+        * modify it if she opens the file manually).
+        * <p>
+        * Defaults to FALSE (visible).
+        * 
+        * @return TRUE if it should stay hidden
+        */
+       boolean hidden() default false;
  
        /**
         * This item is only used as a group, not as an option.

diff --combined src/be/nikiroo/utils/resources/MetaInfo.java
index 917c21001c14482bc9292be0eaede3cd1c707bd5,70c6c43181bbff8f8885c1eca15a792eef03eac1..70c6c43181bbff8f8885c1eca15a792eef03eac1
--- 1/src/be/nikiroo/utils/resources/MetaInfo.java
--- 2/resources/MetaInfo.java
+++ b/src/be/nikiroo/utils/resources/MetaInfo.java
@@@ -27,6 -27,7 +27,7 @@@ public class MetaInfo<E extends Enum<E>
        private List<Runnable> saveListeners = new ArrayList<Runnable>();
  
        private String name;
+       private boolean hidden;
        private String description;
  
        private boolean dirty;
@@@ -90,6 -91,7 +91,7 @@@
                }
  
                this.name = name;
+               this.hidden = meta.hidden();
                this.description = description;
  
                reload();
@@@ -110,6 -112,16 +112,16 @@@
        public String getName() {
                return name;
        }
+       
+       /**
+        * This item should be hidden from the user (she will still be able to
+        * modify it if she opens the file manually).
+        * 
+        * @return TRUE if it should stay hidden
+        */
+       public boolean isHidden() {
+               return hidden;
+       }
  
        /**
         * A description for this item: what it is or does, how to explain that item
@@@ -682,8 -694,10 +694,10 @@@
                List<MetaInfo<E>> shadow = new ArrayList<MetaInfo<E>>();
                for (E id : type.getEnumConstants()) {
                        MetaInfo<E> info = new MetaInfo<E>(type, bundle, id);
-                       list.add(info);
-                       shadow.add(info);
+                       if (!info.hidden) {
+                               list.add(info);
+                               shadow.add(info);
+                       }
                }
  
                for (int i = 0; i < list.size(); i++) {