126 lines
4.4 KiB
C#
126 lines
4.4 KiB
C#
#region PDFsharp - A .NET library for processing PDF
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//
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// Authors:
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// Stefan Lange
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//
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// Copyright (c) 2005-2017 empira Software GmbH, Cologne Area (Germany)
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//
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// http://www.pdfsharp.com
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// http://sourceforge.net/projects/pdfsharp
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#endregion
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using System.Collections.Generic;
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namespace PdfSharp.Pdf.Internal
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{
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#if true_
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/// <summary>
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/// Provides a thread-local cache for large objects.
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/// </summary>
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internal class GlobalObjectTable_not_in_use
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{
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public GlobalObjectTable_not_in_use()
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{ }
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public void AttatchDocument(PdfDocument.DocumentHandle handle)
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{
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lo ck (_documentHandles)
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{
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_documentHandles.Add(handle);
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}
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}
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public void DetatchDocument(PdfDocument.DocumentHandle handle)
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{
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lo ck (_documentHandles)
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{
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// Notify other documents about detach
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int count = _documentHandles.Count;
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for (int idx = 0; idx < count; idx++)
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{
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if (((PdfDocument.DocumentHandle)_documentHandles[idx]).IsAlive)
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{
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PdfDocument target = ((PdfDocument.DocumentHandle)_documentHandles[idx]).Target;
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if (target != null)
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target.OnExternalDocumentFinalized(handle);
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}
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}
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// Clean up table
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for (int idx = 0; idx < _documentHandles.Count; idx++)
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{
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PdfDocument target = ((PdfDocument.DocumentHandle)_documentHandles[idx]).Target;
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if (target == null)
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{
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_documentHandles.RemoveAt(idx);
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idx--;
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}
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}
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}
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//lo ck (documents)
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//{
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// int index = IndexOf(document);
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// if (index != -1)
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// {
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// documents.RemoveAt(index);
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// int count = documents.Count;
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// for (int idx = 0; idx < count; idx++)
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// {
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// PdfDocument target = ((WeakReference)documents[idx]).Target as PdfDocument;
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// if (target != null)
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// target.OnExternalDocumentFinalized(document);
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// }
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// for (int idx = 0; idx < documents.Count; idx++)
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// {
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// PdfDocument target = ((WeakReference)documents[idx]).Target as PdfDocument;
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// if (target == null)
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// {
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// documents.RemoveAt(idx);
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// idx--;
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// }
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// }
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// }
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//}
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}
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//int IndexOf(PdfDocument.Handle handle)
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//{
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// int count = documents.Count;
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// for (int idx = 0; idx < count; idx++)
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// {
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// if ((PdfDocument.Handle)documents[idx] == handle)
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// return idx;
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// //if (Object.ReferenceEquals(((WeakReference)documents[idx]).Target, document))
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// // return idx;
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// }
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// return -1;
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//}
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/// <summary>
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/// Array of handles to all documents.
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/// </summary>
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readonly List<object> _documentHandles = new List<object>();
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}
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#endif
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}
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