/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for Additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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namespace HH.WMS.Utils.NPOI.SS.Util
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{
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using System;
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using HH.WMS.Utils.NPOI.SS.UserModel;
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using HH.WMS.Utils.NPOI.Util;
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using System.Collections.Generic;
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using System.Globalization;
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/**
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* For POI internal use only
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*
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* @author Josh Micich
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*/
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public class SSCellRange<K> : ICellRange<K> where K:ICell
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{
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private int _height;
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private int _width;
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private K[] _flattenedArray;
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private int _firstRow;
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private int _firstColumn;
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private SSCellRange(int firstRow, int firstColumn, int height, int width, K[] flattenedArray)
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{
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_firstRow = firstRow;
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_firstColumn = firstColumn;
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_height = height;
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_width = width;
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_flattenedArray = flattenedArray;
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}
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public static SSCellRange<K> Create(int firstRow, int firstColumn, int height, int width, List<K> flattenedList, Type cellClass)
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{
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int nItems = flattenedList.Count;
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if (height * width != nItems)
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{
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throw new ArgumentException("Array size mismatch.");
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}
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K[] flattenedArray = (K[])Array.CreateInstance(cellClass, nItems);
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flattenedArray=flattenedList.ToArray();
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return new SSCellRange<K>(firstRow, firstColumn, height, width, flattenedArray);
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}
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public K GetCell(int relativeRowIndex, int relativeColumnIndex)
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{
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if (relativeRowIndex < 0 || relativeRowIndex >= _height)
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{
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throw new IndexOutOfRangeException("Specified row " + relativeRowIndex
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+ " is outside the allowable range (0.." + (_height - 1) + ").");
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}
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if (relativeColumnIndex < 0 || relativeColumnIndex >= _width)
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{
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throw new IndexOutOfRangeException("Specified colummn " + relativeColumnIndex
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+ " is outside the allowable range (0.." + (_width - 1) + ").");
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}
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int flatIndex = _width * relativeRowIndex + relativeColumnIndex;
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return _flattenedArray[flatIndex];
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}
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internal class ArrayIterator<D> :IEnumerator<D>
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{
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private D[] _array;
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private int _index;
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public ArrayIterator(D[] array)
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{
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_array = array;
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_index = 0;
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}
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#region IEnumerator<D> Members
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public bool MoveNext()
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{
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return _index < _array.Length;
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}
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public void Remove()
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{
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throw new NotSupportedException("Cannot remove cells from this CellRange.");
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}
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public void Reset()
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{
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}
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public D Current
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{
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get
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{
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if (_index >= _array.Length)
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{
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throw new ArgumentNullException(_index.ToString(CultureInfo.CurrentCulture));
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}
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return _array[_index++];
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}
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}
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#endregion
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#region IDisposable Members
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public void Dispose()
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{
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//do nothing?
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}
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#endregion
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#region IEnumerator Members
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object System.Collections.IEnumerator.Current
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{
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get { return this.Current; }
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}
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#endregion
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}
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#region CellRange<K> Members
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public K TopLeftCell
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{
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get { return _flattenedArray[0]; }
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}
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public K[] FlattenedCells
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{
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get {
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return (K[])_flattenedArray.Clone();
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}
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}
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public K[][] Cells
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{
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get {
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Type itemCls = _flattenedArray.GetType();
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K[][] result = (K[][])Array.CreateInstance(itemCls, _height);
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itemCls = itemCls.GetElementType();
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for (int r = _height - 1; r >= 0; r--)
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{
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K[] row = (K[])Array.CreateInstance(itemCls, _width);
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int flatIndex = _width * r;
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Array.Copy(_flattenedArray, flatIndex, row, 0, _width);
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}
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return result;
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}
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}
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public int Height
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{
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get
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{
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return _height;
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}
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}
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public int Width
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{
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get
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{
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return _width;
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}
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}
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public int Size
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{
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get
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{
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return _height * _width;
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}
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}
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public String ReferenceText
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{
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get
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{
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CellRangeAddress cra = new CellRangeAddress(_firstRow, _firstRow + _height - 1, _firstColumn, _firstColumn + _width - 1);
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return cra.FormatAsString();
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}
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}
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#endregion
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#region IEnumerable<K> Members
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public IEnumerator<K> GetEnumerator()
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{
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return new ArrayIterator<K>(_flattenedArray);
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}
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#endregion
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#region IEnumerable Members
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System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
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{
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throw new NotImplementedException();
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}
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#endregion
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}
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}
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