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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.gallery3d.util;
     18 
     19 public class IntArray {
     20     private static final int INIT_CAPACITY = 8;
     21 
     22     private int mData[] = new int[INIT_CAPACITY];
     23     private int mSize = 0;
     24 
     25     public void add(int value) {
     26         if (mData.length == mSize) {
     27             int temp[] = new int[mSize + mSize];
     28             System.arraycopy(mData, 0, temp, 0, mSize);
     29             mData = temp;
     30         }
     31         mData[mSize++] = value;
     32     }
     33 
     34     public int size() {
     35         return mSize;
     36     }
     37 
     38     public int[] toArray(int[] result) {
     39         if (result == null || result.length < mSize) {
     40             result = new int[mSize];
     41         }
     42         System.arraycopy(mData, 0, result, 0, mSize);
     43         return result;
     44     }
     45 
     46     public int[] getInternalArray() {
     47         return mData;
     48     }
     49 
     50     public void clear() {
     51         mSize = 0;
     52         if (mData.length != INIT_CAPACITY) mData = new int[INIT_CAPACITY];
     53     }
     54 }
     55