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.Diagnostics;
+using PdfSharpCore.Drawing;
+using PdfSharpCore.Fonts;
+
+namespace PdfSharpCore.Internal
+{
+    /// <summary>
+    /// A bunch of internal helper functions.
+    /// </summary>
+    internal static class DiagnosticsHelper
+    {
+        public static void HandleNotImplemented(string message)
+        {
+            string text = "Not implemented: " + message;
+            switch (Diagnostics.NotImplementedBehaviour)
+            {
+                case NotImplementedBehaviour.DoNothing:
+                    break;
+
+                case NotImplementedBehaviour.Log:
+                    Logger.Log(text);
+                    break;
+
+                case NotImplementedBehaviour.Throw:
+                    ThrowNotImplementedException(text);
+                    break;
+
+                default:
+                    throw new ArgumentOutOfRangeException();
+            }
+        }
+
+        /// <summary>
+        /// Indirectly throws NotImplementedException.
+        /// Required because PDFsharp Release builds tread warnings as errors and
+        /// throwing NotImplementedException may lead to unreachable code which
+        /// crashes the build.
+        /// </summary>
+        public static void ThrowNotImplementedException(string message)
+        {
+            throw new NotImplementedException(message);
+        }
+    }
+
+    internal static class Logger
+    {
+        public static void Log(string format, params object[] args)
+        {
+            Debug.WriteLine("Log...");
+        }
+    }
+
+    class Logging
+    {
+
+    }
+
+    class Tracing
+    {
+        [Conditional("DEBUG")]
+        public void Foo()
+        { }
+    }
+
+    /// <summary>
+    /// Helper class around the Debugger class.
+    /// </summary>
+    public static class DebugBreak
+    {
+        /// <summary>
+        /// Call Debugger.Break() if a debugger is attached.
+        /// </summary>
+        public static void Break()
+        {
+            Break(false);
+        }
+
+        /// <summary>
+        /// Call Debugger.Break() if a debugger is attached or when always is set to true.
+        /// </summary>
+        public static void Break(bool always)
+        {
+            if (always || Debugger.IsAttached)
+                Debugger.Break();
+        }
+    }
+
+    /// <summary>
+    /// Internal stuff for development of PdfSharpCore.
+    /// </summary>
+    public static class FontsDevHelper
+    {
+        /// <summary>
+        /// Creates font and enforces bold/italic simulation.
+        /// </summary>
+        public static XFont CreateSpecialFont(string familyName, double emSize, XFontStyle style,
+            XPdfFontOptions pdfOptions, XStyleSimulations styleSimulations)
+        {
+            return new XFont(familyName, emSize, style, pdfOptions, styleSimulations);
+        }
+
+        /// <summary>
+        /// Dumps the font caches to a string.
+        /// </summary>
+        public static string GetFontCachesState()
+        {
+            return FontFactory.GetFontCachesState();
+        }
+    }
+}