source: java/main/src/main/java/com/framsticks/params/SimpleUniqueList.java @ 102

package com.framsticks.params;

import java.util.Collections;
import java.util.Iterator;
import java.util.Map;

import com.framsticks.core.ListChange;

public class SimpleUniqueList<T extends UniqueObject> implements Iterable<T> {

        protected final Map<String, T> children;
        protected final Class<T> type;
        protected final char prefix;
        protected final EventListeners<ListChange> listeners = new EventListeners<>();

        protected int counter = 0;

        /**
         * @param type
         */
        public SimpleUniqueList(Class<T> type, char prefix) {
                this.type = type;
                this.prefix = prefix;
                children = UniqueListAccess.createMap(type, this);
        }

        // public static <T2> SimpleUniqueList<T2> make(Class<T2> type) {
        //      return new SimpleUniqueList<T2>(type);
        // }

        public String generateId() {
                return prefix + Integer.toString(counter++);
        }

        @Override
        public Iterator<T> iterator() {
                return children.values().iterator();
        }

        public void addListener(EventListener<ListChange> listener) {
                listeners.add(listener);
        }

        public void removeListener(EventListener<ListChange> listener) {
                listeners.remove(listener);
        }

        public void fireChildrenChange(ListChange original, ListChange.Action action, Object... hints) {
                listeners.actionForAll(new ListChange(action, original.getPosition(), original.getIdentifier(), hints));

        }

        public void fireChildrenChange(T child, ListChange.Action action, Object... hints) {
                ListChange change = new ListChange(action, UniqueListAccess.getNumberInMap(children, child), child.getUid(), hints);
                listeners.actionForAll(change);
        }

        public void add(T child) {
                child.setUid(generateId());
                children.put(child.getUid(), child);
                fireChildrenChange(child, ListChange.Action.Add);
        }

        public void remove(T child) {
                fireChildrenChange(child, ListChange.Action.Remove);
                children.remove(child.getUid());
        }

        public void modify(T child) {
                fireChildrenChange(child, ListChange.Action.Modify);
        }

        public Map<String, T> getView() {
                return Collections.unmodifiableMap(children);
        }
}