Added shape support

Directory.Build.props

@@ -48,16 +48,6 @@
   </PropertyGroup>
 
   <Choose>
-    <When Condition="'$(TargetFramework)' == 'net472'">
-      <PropertyGroup>
-        <DefineConstants>$(DefineConstants);SUPPORTS_CODECOVERAGE</DefineConstants>
-      </PropertyGroup>
-    </When>
-    <When Condition="'$(TargetFramework)' == 'netstandard2.0'">
-      <PropertyGroup>
-        <DefineConstants>$(DefineConstants);SUPPORTS_CODECOVERAGE</DefineConstants>
-      </PropertyGroup>
-    </When>
     <When Condition="'$(TargetFramework)' == 'netstandard2.1'">
       <PropertyGroup>
         <DefineConstants>$(DefineConstants);SUPPORTS_MATHF</DefineConstants>
@@ -66,19 +56,6 @@
         <DefineConstants>$(DefineConstants);SUPPORTS_NULLABLEREFATTRIBUTES</DefineConstants>
       </PropertyGroup>
     </When>
-    <When Condition="'$(TargetFramework)' == 'netcoreapp2.0'">
-      <PropertyGroup>
-        <DefineConstants>$(DefineConstants);SUPPORTS_MATHF</DefineConstants>
-        <DefineConstants>$(DefineConstants);SUPPORTS_CODECOVERAGE</DefineConstants>
-      </PropertyGroup>
-    </When>
-    <When Condition="'$(TargetFramework)' == 'netcoreapp2.1'">
-      <PropertyGroup>
-        <DefineConstants>$(DefineConstants);SUPPORTS_MATHF</DefineConstants>
-        <DefineConstants>$(DefineConstants);SUPPORTS_HASHCODE</DefineConstants>
-        <DefineConstants>$(DefineConstants);SUPPORTS_CODECOVERAGE</DefineConstants>
-      </PropertyGroup>
-    </When>
     <When Condition="'$(TargetFramework)' == 'netcoreapp3.1'">
       <PropertyGroup>
         <DefineConstants>$(DefineConstants);SUPPORTS_MATHF</DefineConstants>

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020 Gerard Gunnewijk
+Copyright (c) 2021 Gerard Gunnewijk
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -15,7 +15,7 @@ This project is licensed under MIT license.
 ## Specifications used
 This library was created using the specifications lay out in ["PDF 32000-1:2008, Document management – Portable document format – Part 1: PDF 1.7"](https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf).
 
-The full specifications are not implemented. This library currently only supports placements of images and setting the different boxes.
+The full specifications are not implemented. This library currently only supports placements of images, drawing of vector shapes (CMYK, RGB & gray scale), and setting the different boxes.
 
 ## Remarks
 Unlike most PDF libraries this library does not create the entire PDF model in memory before writing the PDF to a (file)stream. Most libaries support editing capabilities, because this libary only supports creating files, it was not necessary to keep the PDF model in memory. This results in less memory usage.

samples/Synercoding.FileFormats.Pdf.ConsoleTester/Program.cs

@@ -1,6 +1,9 @@
-using Synercoding.FileFormats.Pdf.Primitives;
+using Synercoding.FileFormats.Pdf.Extensions;
+using Synercoding.FileFormats.Pdf.LowLevel.Graphics;
+using Synercoding.FileFormats.Pdf.LowLevel.Graphics.Colors;
 using Synercoding.Primitives;
 using Synercoding.Primitives.Extensions;
+using System;
 using System.IO;
 
 namespace Synercoding.FileFormats.Pdf.ConsoleTester
@@ -53,6 +56,45 @@ public static void Main(string[] args)
                             page.AddImage(eyeStream, new Rectangle(offSet, offSet, width + offSet, height + offSet, Unit.Millimeters));
                         }
                     })
+                    // Test shape graphics
+                    .AddPage(page =>
+                    {
+                        page.AddShapes(ctx =>
+                        {
+                            ctx.DefaultState(g =>
+                            {
+                                g.LineWidth = 1;
+                                g.Fill = null;
+                                g.Stroke = null;
+                                g.Dash = new Dash()
+                                {
+                                    Array = Array.Empty<double>(),
+                                    Phase = 0
+                                };
+                                g.MiterLimit = 10;
+                                g.LineCap = LineCapStyle.ButtCap;
+                                g.LineJoin = LineJoinStyle.MiterJoin;
+                            });
+
+                            ctx.NewPath(g => { g.Fill = PredefinedColors.Red; g.Stroke = PredefinedColors.Black; g.LineWidth = 5; })
+                                .Move(100, 100)
+                                .LineTo(200, 100)
+                                .LineTo(200, 200)
+                                .LineTo(100, 200);
+                            ctx.NewPath(g => { g.Fill = PredefinedColors.Blue; g.Stroke = null; })
+                                .Move(50, 50)
+                                .LineTo(150, 50)
+                                .LineTo(150, 150)
+                                .LineTo(50, 150)
+                                .Close();
+                            ctx.NewPath(g => { g.Fill = null; g.Stroke = PredefinedColors.Yellow; g.LineWidth = 3; g.Dash = new Dash() { Array = new[] { 5d } }; })
+                                .Move(150, 150)
+                                .LineTo(250, 150)
+                                .LineTo(250, 250)
+                                .LineTo(150, 250)
+                                .Close();
+                        });
+                    })
                     // Test placement using matrix
                     .AddPage(page =>
                     {

src/Directory.Build.props

@@ -2,7 +2,7 @@
 <Project>
 
   <PropertyGroup>
-    <TargetFrameworks>net5.0;netcoreapp3.1;netcoreapp2.1;netstandard2.1;netstandard2.0;netstandard1.6</TargetFrameworks>
+    <TargetFrameworks>net5.0;netcoreapp3.1;netstandard2.1</TargetFrameworks>
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileDirectory)..\Directory.Build.props</MSBuildAllProjects>
     <SynercodingProjectCategory>src</SynercodingProjectCategory>
   </PropertyGroup>

src/Synercoding.FileFormats.Pdf/DocumentInformation.cs

@@ -1,12 +1,21 @@
+using Synercoding.FileFormats.Pdf.LowLevel;
+using Synercoding.FileFormats.Pdf.LowLevel.Extensions;
 using System;
 
 namespace Synercoding.FileFormats.Pdf
 {
     /// <summary>
     /// This class contains information about the document
     /// </summary>
-    public class DocumentInformation
+    public class DocumentInformation : IPdfObject
     {
+        private bool _isWritten;
+
+        internal DocumentInformation(PdfReference id)
+        {
+            Reference = id;
+        }
+
         /// <summary>
         /// The document's title
         /// </summary>
@@ -46,5 +55,87 @@ public class DocumentInformation
         /// The date and time the document was most recently modified, in human-readable form.
         /// </summary>
         public DateTime? ModDate { get; set; }
+
+        /// <inheritdoc />
+        public PdfReference Reference { get; }
+
+        internal uint WriteToStream(PdfStream stream)
+        {
+            if (_isWritten)
+                throw new InvalidOperationException("Object is already written to stream.");
+
+            var position = (uint)stream.Position;
+
+            stream.IndirectDictionary(this, static (did, dictionary) =>
+            {
+                if (!string.IsNullOrWhiteSpace(did.Title))
+                    dictionary.Write(PdfName.Get("Title"), _toPdfHexadecimalString(did.Title!));
+                if (!string.IsNullOrWhiteSpace(did.Author))
+                    dictionary.Write(PdfName.Get("Author"), _toPdfHexadecimalString(did.Author!));
+                if (!string.IsNullOrWhiteSpace(did.Subject))
+                    dictionary.Write(PdfName.Get("Subject"), _toPdfHexadecimalString(did.Subject!));
+                if (!string.IsNullOrWhiteSpace(did.Keywords))
+                    dictionary.Write(PdfName.Get("Keywords"), _toPdfHexadecimalString(did.Keywords!));
+                if (!string.IsNullOrWhiteSpace(did.Creator))
+                    dictionary.Write(PdfName.Get("Creator"), _toPdfHexadecimalString(did.Creator!));
+                if (!string.IsNullOrWhiteSpace(did.Producer))
+                    dictionary.Write(PdfName.Get("Producer"), _toPdfHexadecimalString(did.Producer!));
+                if (did.CreationDate != null)
+                    dictionary.Write(PdfName.Get("CreationDate"), _toPdfDate(did.CreationDate.Value));
+                if (did.ModDate != null)
+                    dictionary.Write(PdfName.Get("ModDate"), _toPdfDate(did.ModDate.Value));
+            });
+
+            _isWritten = true;
+
+            return position;
+        }
+
+        private static string _toPdfHexadecimalString(string input)
+        {
+            var bytes = System.Text.Encoding.ASCII.GetBytes(input);
+            var builder = new System.Text.StringBuilder((bytes.Length * 2) + 2);
+            builder.Append('<');
+            foreach (var b in bytes)
+            {
+                builder.Append(b.ToString("X2"));
+            }
+            builder.Append('>');
+            return builder.ToString();
+        }
+
+        private static string _toPdfDate(DateTimeOffset input)
+        {
+            var datePart = input.ToString("yyyyMMddHHmmss");
+
+            var builder = new System.Text.StringBuilder(22);
+            builder.Append("(D:");
+            builder.Append(datePart);
+
+            var hours = input.Offset.Hours;
+            var minutes = input.Offset.Minutes;
+
+            if (hours == 0 && minutes == 0)
+            {
+                builder.Append("Z00'00");
+            }
+            else
+            {
+                if (hours > 0 || (hours == 0 && minutes > 0))
+                {
+                    builder.Append('+');
+                }
+                else
+                {
+                    builder.Append('-');
+                }
+                builder.Append(Math.Abs(hours).ToString().PadLeft(2, '0'));
+                builder.Append('\'');
+                builder.Append(minutes.ToString().PadLeft(2, '0'));
+            }
+            builder.Append(')');
+
+            return builder.ToString();
+        }
     }
 }