116 lines
4.6 KiB
C#
116 lines
4.6 KiB
C#
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#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;
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using PdfSharp.Internal;
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using PdfSharp.Pdf;
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namespace PdfSharp.Fonts
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{
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/// <summary>
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/// Provides functionality to specify information about the handling of fonts in the current application domain.
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/// </summary>
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public static class GlobalFontSettings
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{
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/// <summary>
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/// The name of the default font.
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/// </summary>
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public const string DefaultFontName = "PlatformDefault";
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/// <summary>
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/// Gets or sets the global font resolver for the current application domain.
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/// This static function must be called only once and before any font operation was executed by PDFsharp.
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/// If this is not easily to obtain, e.g. because your code is running on a web server, you must provide the
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/// same instance of your font resolver in every subsequent setting of this property.
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/// In a web application set the font resolver in Global.asax.
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/// </summary>
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public static IFontResolver FontResolver
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{
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get { return _fontResolver; }
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set
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{
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// Cannot remove font resolver.
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if (value == null)
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throw new ArgumentNullException();
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try
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{
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Lock.EnterFontFactory();
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// Ignore multiple setting e.g. in a web application.
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if (ReferenceEquals(_fontResolver, value))
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return;
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if (FontFactory.HasFontSources)
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throw new InvalidOperationException("Must not change font resolver after is was once used.");
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_fontResolver = value;
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}
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finally { Lock.ExitFontFactory(); }
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}
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}
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static IFontResolver _fontResolver;
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/// <summary>
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/// Gets or sets the default font encoding used for XFont objects where encoding is not explicitly specified.
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/// If it is not set, the default value is PdfFontEncoding.Unicode.
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/// If you are sure your document contains only Windows-1252 characters (see https://en.wikipedia.org/wiki/Windows-1252)
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/// set default encoding to PdfFontEncodingj.Windows1252.
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/// Must be set only once per app domain.
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/// </summary>
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public static PdfFontEncoding DefaultFontEncoding
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{
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get
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{
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if (!_fontEncodingInitialized)
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DefaultFontEncoding = PdfFontEncoding.Unicode;
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return _fontEncoding;
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}
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set
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{
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try
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{
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Lock.EnterFontFactory();
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if (_fontEncodingInitialized)
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{
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// Ignore multiple setting e.g. in a web application.
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if (_fontEncoding == value)
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return;
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throw new InvalidOperationException("Must not change DefaultFontEncoding after is was set once.");
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}
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_fontEncoding = value;
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_fontEncodingInitialized = true;
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}
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finally { Lock.ExitFontFactory(); }
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}
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}
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static PdfFontEncoding _fontEncoding;
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static bool _fontEncodingInitialized;
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}
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}
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