vendor: import KillerPDF 1.7.5 source (GPL-3.0) as the base for MMD PDF

2026-08-27 06:58:22 +02:00
commit 532485a830
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+#region PDFsharp - A .NET library for processing PDF
+//
+// Authors:
+//   Stefan Lange
+//
+// Copyright (c) 2005-2016 empira Software GmbH, Cologne Area (Germany)
+//
+// http://www.PdfSharp.com
+// http://sourceforge.net/projects/pdfsharp
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+// DEALINGS IN THE SOFTWARE.
+#endregion
+
+using System;
+using System.Collections;
+using System.Globalization;
+using System.Text;
+using System.IO;
+using PdfSharpCore.Drawing;
+using PdfSharpCore.Internal;
+using PdfSharpCore.Pdf.IO;
+using PdfSharpCore.Pdf.Internal;
+
+namespace PdfSharpCore.Pdf
+{
+    /// <summary>
+    /// Represents text that is written 'as it is' into the PDF stream. This class can lead to invalid PDF files.
+    /// E.g. strings in a literal are not encrypted when the document is saved with a password.
+    /// </summary>
+    public sealed class PdfLiteral : PdfItem
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PdfLiteral"/> class.
+        /// </summary>
+        public PdfLiteral()
+        { }
+
+        /// <summary>
+        /// Initializes a new instance with the specified string.
+        /// </summary>
+        public PdfLiteral(string value)
+        {
+            _value = value;
+        }
+
+        /// <summary>
+        /// Initializes a new instance with the culture invariant formatted specified arguments.
+        /// </summary>
+        public PdfLiteral(string format, params object[] args)
+        {
+            _value = PdfEncoders.Format(format, args);
+        }
+
+        /// <summary>
+        /// Creates a literal from an XMatrix
+        /// </summary>
+        public static PdfLiteral FromMatrix(XMatrix matrix)
+        {
+            return new PdfLiteral("[" + PdfEncoders.ToString(matrix) + "]");
+        }
+
+        /// <summary>
+        /// Gets the value as litaral string.
+        /// </summary>
+        public string Value
+        {
+            // This class must behave like a value type. Therefore it cannot be changed (like System.String).
+            get { return _value; }
+        }
+        readonly string _value = String.Empty;
+
+        /// <summary>
+        /// Returns a string that represents the current value.
+        /// </summary>
+        public override string ToString()
+        {
+            return _value;
+        }
+
+        internal override void WriteObject(PdfWriter writer)
+        {
+            writer.Write(this);
+        }
+    }
+}