/* ====================================================================
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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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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using HH.WMS.Utils.NPOI.POIFS.FileSystem;
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using HH.WMS.Utils.NPOI.POIFS.Storage;
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namespace HH.WMS.Utils.NPOI.POIFS.Properties
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{
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public abstract class PropertyTableBase : BATManaged
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{
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protected HeaderBlock _header_block;
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protected List<Property> _properties;
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public PropertyTableBase(HeaderBlock header_block)
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{
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_header_block = header_block;
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_properties = new List<Property>();
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AddProperty(new RootProperty());
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}
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public PropertyTableBase(HeaderBlock header_block, List<Property> properties)
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{
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_header_block = header_block;
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_properties = properties;
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PopulatePropertyTree((DirectoryProperty)_properties[0]);
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}
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public void AddProperty(Property property)
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{
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_properties.Add(property);
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}
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public void RemoveProperty(Property property)
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{
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_properties.Remove(property);
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}
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public RootProperty Root
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{
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get { return (RootProperty)(_properties[0]); }
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}
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protected void PopulatePropertyTree(DirectoryProperty root)
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{
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try
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{
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int index = root.ChildIndex;
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if (!Property.IsValidIndex(index))
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return;
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Stack<Property> children = new Stack<Property>();
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children.Push(_properties[index]);
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while (children.Count != 0)
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{
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Property property = children.Pop();
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root.AddChild(property);
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if (property.IsDirectory)
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{
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PopulatePropertyTree((DirectoryProperty)property);
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}
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index = property.PreviousChildIndex;
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if (Property.IsValidIndex(index))
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{
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children.Push(_properties[index]);
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}
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index = property.NextChildIndex;
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if (Property.IsValidIndex(index))
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{
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children.Push(_properties[index]);
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}
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}
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}
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catch (IOException ex)
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{
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throw ex;
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}
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}
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#region BATManaged Members
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public virtual int StartBlock
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{
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get { return _header_block.PropertyStart; }
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set { _header_block.PropertyStart = value; }
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}
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public virtual int CountBlocks
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{
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get { throw new NotImplementedException(); }
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}
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#endregion
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}
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}
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