diff options
Diffstat (limited to 'src/com/android/gallery3d/util/LinkedNode.java')
-rw-r--r-- | src/com/android/gallery3d/util/LinkedNode.java | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/src/com/android/gallery3d/util/LinkedNode.java b/src/com/android/gallery3d/util/LinkedNode.java deleted file mode 100644 index 4cfc3cded..000000000 --- a/src/com/android/gallery3d/util/LinkedNode.java +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.gallery3d.util; - - -public class LinkedNode { - private LinkedNode mPrev; - private LinkedNode mNext; - - public LinkedNode() { - mPrev = mNext = this; - } - - public void insert(LinkedNode node) { - node.mNext = mNext; - mNext.mPrev = node; - node.mPrev = this; - mNext = node; - } - - public void remove() { - if (mNext == this) throw new IllegalStateException(); - mPrev.mNext = mNext; - mNext.mPrev = mPrev; - mPrev = mNext = null; - } - - @SuppressWarnings("unchecked") - public static class List<T extends LinkedNode> { - private LinkedNode mHead = new LinkedNode(); - - public void insertLast(T node) { - mHead.mPrev.insert(node); - } - - public T getFirst() { - return (T) (mHead.mNext == mHead ? null : mHead.mNext); - } - - public T getLast() { - return (T) (mHead.mPrev == mHead ? null : mHead.mPrev); - } - - public T nextOf(T node) { - return (T) (node.mNext == mHead ? null : node.mNext); - } - - public T previousOf(T node) { - return (T) (node.mPrev == mHead ? null : node.mPrev); - } - - } - - public static <T extends LinkedNode> List<T> newList() { - return new List<T>(); - } -} |