/* ====================================================================
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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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/* ================================================================
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* About NPOI
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* Author: Tony Qu
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* Author's email: tonyqus (at) gmail.com
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* Author's Blog: tonyqus.wordpress.com.cn (wp.tonyqus.cn)
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* HomePage: http://www.codeplex.com/npoi
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* Contributors:
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*
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* ==============================================================*/
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namespace HH.WMS.Utils.NPOI.HPSF
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{
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using System;
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using System.IO;
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using System.Collections;
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using HH.WMS.Utils.NPOI.Util;
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/// <summary>
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/// Class for writing little-endian data and more.
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/// @author Rainer Klute
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/// <a href="mailto:klute@rainer-klute.de"><klute@rainer-klute.de></a>
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/// @since 2003-02-20
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/// </summary>
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public class TypeWriter
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{
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/// <summary>
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/// Writes a two-byte value (short) To an output stream.
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/// </summary>
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/// <param name="out1">The stream To Write To..</param>
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/// <param name="n">The number of bytes that have been written.</param>
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/// <returns></returns>
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public static int WriteToStream(Stream out1, short n)
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{
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int Length = LittleEndianConsts.SHORT_SIZE;
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byte[] buffer = new byte[Length];
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LittleEndian.PutShort(buffer, 0, n); // FIXME: unsigned
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out1.Write(buffer, 0, Length);
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return Length;
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}
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/**
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* Writes a four-byte value To an output stream.
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*
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* @param out The stream To Write To.
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* @param n The value To Write.
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* @exception IOException if an I/O error occurs
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* @return The number of bytes written To the output stream.
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*/
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public static int WriteToStream(Stream out1, int n)
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{
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int l = LittleEndianConsts.INT_SIZE;
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byte[] buffer = new byte[l];
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LittleEndian.PutInt(buffer, 0, n);
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out1.Write(buffer, 0, l);
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return l;
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}
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/**
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* Writes a four-byte value To an output stream.
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*
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* @param out The stream To Write To.
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* @param n The value To Write.
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* @exception IOException if an I/O error occurs
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* @return The number of bytes written To the output stream.
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*/
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[Obsolete]
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public static int WriteToStream(Stream out1, uint n)
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{
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int l = LittleEndianConsts.INT_SIZE;
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byte[] buffer = new byte[l];
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LittleEndian.PutUInt(buffer, 0, n);
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out1.Write(buffer, 0, l);
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return l;
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}
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/**
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* Writes a eight-byte value To an output stream.
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*
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* @param out The stream To Write To.
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* @param n The value To Write.
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* @exception IOException if an I/O error occurs
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* @return The number of bytes written To the output stream.
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*/
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public static int WriteToStream(Stream out1, long n)
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{
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int l = LittleEndianConsts.LONG_SIZE;
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byte[] buffer = new byte[l];
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LittleEndian.PutLong(buffer, 0, n);
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out1.Write(buffer, 0, l);
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return l;
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}
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/**
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* Writes an unsigned two-byte value To an output stream.
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*
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* @param out The stream To Write To
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* @param n The value To Write
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* @exception IOException if an I/O error occurs
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*/
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public static void WriteUShortToStream(Stream out1, int n)
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{
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int high = n & unchecked((int)0xFFFF0000);
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if (high != 0)
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throw new IllegalPropertySetDataException
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("Value " + n + " cannot be represented by 2 bytes.");
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WriteToStream(out1, (short)n);
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}
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/**
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* Writes an unsigned four-byte value To an output stream.
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*
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* @param out The stream To Write To.
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* @param n The value To Write.
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* @return The number of bytes that have been written To the output stream.
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* @exception IOException if an I/O error occurs
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*/
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public static int WriteUIntToStream(Stream out1, uint n)
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{
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ulong high = (ulong)(n & unchecked((long)0xFFFFFFFF00000000L));
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if (high != 0 && high != 0xFFFFFFFF00000000L)
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throw new IllegalPropertySetDataException
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("Value " + n + " cannot be represented by 4 bytes.");
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return WriteToStream(out1, (int)n);
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}
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/**
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* Writes a 16-byte {@link ClassID} To an output stream.
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*
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* @param out The stream To Write To
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* @param n The value To Write
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* @return The number of bytes written
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* @exception IOException if an I/O error occurs
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*/
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public static int WriteToStream(Stream out1, ClassID n)
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{
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byte[] b = new byte[16];
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n.Write(b, 0);
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out1.Write(b, 0, b.Length);
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return b.Length;
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}
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/**
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* Writes an array of {@link Property} instances To an output stream
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* according To the Horrible Property Format.
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*
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* @param out The stream To Write To
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* @param properties The array To Write To the stream
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* @param codepage The codepage number To use for writing strings
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* @exception IOException if an I/O error occurs
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* @throws UnsupportedVariantTypeException if HPSF does not support some
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* variant type.
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*/
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public static void WriteToStream(Stream out1,
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Property[] properties,
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int codepage)
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{
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/* If there are no properties don't Write anything. */
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if (properties == null)
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return;
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/* Write the property list. This is a list containing pairs of property
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* ID and offset into the stream. */
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for (int i = 0; i < properties.Length; i++)
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{
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Property p = properties[i];
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WriteUIntToStream(out1, (uint)p.ID);
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WriteUIntToStream(out1, (uint)p.Count);
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}
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/* Write the properties themselves. */
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for (int i = 0; i < properties.Length; i++)
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{
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Property p = properties[i];
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long type = p.Type;
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WriteUIntToStream(out1, (uint)type);
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VariantSupport.Write(out1, (int)type, p.Value, codepage);
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}
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}
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/**
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* Writes a double value value To an output stream.
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*
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* @param out The stream To Write To.
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* @param n The value To Write.
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* @exception IOException if an I/O error occurs
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* @return The number of bytes written To the output stream.
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*/
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public static int WriteToStream(Stream out1, double n)
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{
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int l = LittleEndianConsts.DOUBLE_SIZE;
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byte[] buffer = new byte[l];
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LittleEndian.PutDouble(buffer, 0, n);
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out1.Write(buffer, 0, l);
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return l;
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}
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}
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}
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