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 add(int value)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 removeLast()34 public int removeLast() { 35 mSize--; 36 return mData[mSize]; 37 } 38 size()39 public int size() { 40 return mSize; 41 } 42 43 // For testing only toArray(int[] result)44 public int[] toArray(int[] result) { 45 if (result == null || result.length < mSize) { 46 result = new int[mSize]; 47 } 48 System.arraycopy(mData, 0, result, 0, mSize); 49 return result; 50 } 51 getInternalArray()52 public int[] getInternalArray() { 53 return mData; 54 } 55 clear()56 public void clear() { 57 mSize = 0; 58 if (mData.length != INIT_CAPACITY) mData = new int[INIT_CAPACITY]; 59 } 60 } 61