remove more unused classes

src/UglyToad.Pdf/Fonts/IFont.cs

@@ -1,8 +1,5 @@
 namespace UglyToad.Pdf.Fonts
 {
-    using System;
-    using System.Collections.Generic;
-    using Cmap;
     using Cos;
     using Geometry;
     using IO;
@@ -19,63 +16,4 @@
 
         PdfVector GetDisplacement(int characterCode);
     }
-
-    internal class CompositeFont : IFont
-    {
-        private readonly Dictionary<int, decimal> codeToWidthMap = new Dictionary<int, decimal>();
-
-        public CosName Name { get; set; }
-
-        public CosName SubType { get; set; }
-
-        public string BaseFontType { get; set; }
-
-        public bool IsVertical => ToUnicode?.WMode == 1;
-
-        public CMap ToUnicode { get; set; }
-
-        public CosName BaseFont { get; set; }
-
-        public int ReadCharacterCode(IInputBytes bytes, out int codeLength)
-        {
-            var current = bytes.CurrentOffset;
-
-            var code = ToUnicode.ReadCode(bytes);
-
-            codeLength = bytes.CurrentOffset - current;
-
-            return code;
-        }
-
-        public bool TryGetUnicode(int characterCode, out string value)
-        {
-            throw new NotImplementedException();
-        }
-
-        public string GetUnicode(int characterCode)
-        {
-            if (ToUnicode != null)
-            {
-                if (ToUnicode.TryConvertToUnicode(characterCode, out string s)) return s;
-            }
-
-            throw new NotImplementedException($"Could not locate the unicode for the character code {characterCode} in font {Name}.");
-        }
-
-        public PdfVector GetDisplacement(int characterCode)
-        {
-            var width = GetCharacterWidth(characterCode);
-            return new PdfVector(width / 1000, 0);
-        }
-
-        private decimal GetCharacterWidth(int characterCode)
-        {
-            if (codeToWidthMap.TryGetValue(characterCode, out var width))
-            {
-                return width;
-            }
-
-            return 12000;
-        }
-    }
 }

src/UglyToad.Pdf/Parser/PageTree/PageParser.cs

@@ -1,68 +0,0 @@
-namespace UglyToad.Pdf.Parser.PageTree
-{
-    using System;
-    using ContentStream;
-    using ContentStream.TypedAccessors;
-    using Cos;
-    using Filters;
-    using Fonts;
-    
-    internal class CompositeFontParser
-    {
-        public CompositeFont Parse(PdfDictionary dictionary, ParsingArguments arguments)
-        {
-            var descendants = dictionary.GetItemOrDefault(CosName.DESCENDANT_FONTS) as COSArray;
-
-            if (descendants == null)
-            {
-                throw new InvalidOperationException("DescendantFonts is required for a Type0 composite font. It was not found: " + dictionary);
-            }
-
-            if (descendants.Count < 1)
-            {
-                throw new InvalidOperationException("Descendant fonts should be a single element array. There were no elements: " + dictionary);
-            }
-
-            var descendantKey = descendants.get(0) as CosObject;
-
-            var descendant = arguments.Container.Get<DynamicParser>()
-                .Parse(arguments, descendantKey, false);
-
-            var toUnicode = dictionary.GetObjectKey(CosName.TO_UNICODE);
-
-            if (toUnicode != null)
-            {
-                var toUnicodeValue = arguments.Container.Get<DynamicParser>()
-                    .Parse(arguments, toUnicode, false);
-
-                if (toUnicodeValue is RawCosStream stream)
-                {
-                    var decoded = stream.Decode(arguments.Container.Get<IFilterProvider>());
-
-                    // This is described on page 472 of the spec.
-                    var str = UglyToad.Pdf.Util.OtherEncodings.BytesAsLatin1String(decoded);
-                }
-            }
-
-            return new CompositeFont();
-        }
-    }
-
-    internal class SimpleFontParser
-    {
-        public SimpleFont Parse(PdfDictionary dictionary, ParsingArguments arguments)
-        {
-            return new SimpleFont();
-        }
-    }
-
-    public class SimpleFont
-    {
-
-    }
-
-    public class Font
-    {
-
-    }
-}

src/UglyToad.Pdf/Parser/PageTree/ResourceDictionary.cs

@@ -1,40 +0,0 @@
-namespace UglyToad.Pdf.Parser.PageTree
-{
-    using System.Collections.Generic;
-    using Content;
-    using Cos;
-
-    /// <summary>
-    /// Represents the resources specified for a <see cref="Page"/> or <see cref="Pages"/> object.
-    /// </summary>
-    public class ResourceDictionary
-    {
-        private readonly Dictionary<CosName, CosObjectKey> fonts = new Dictionary<CosName, CosObjectKey>();
-        private readonly Dictionary<CosName, Font> fontObjects
-            = new Dictionary<CosName, Font>();
-
-        public void Merge(ResourceDictionary parent)
-        {
-            foreach (var font in parent.fonts)
-            {
-                if (!fonts.ContainsKey(font.Key))
-                {
-                    fonts[font.Key] = font.Value;
-                }
-            }
-        }
-
-        public void SetFonts(IReadOnlyDictionary<CosName, CosObjectKey> resourceFonts)
-        {
-            foreach (var font in resourceFonts)
-            {
-                fonts[font.Key] = font.Value;
-            } 
-        }
-
-        public bool ContainsFont(CosName name)
-        {
-            return fonts.ContainsKey(name);
-        }
-    }
-}

src/UglyToad.Pdf/Parser/PageTree/ResourceDictionaryParser.cs

@@ -1,31 +0,0 @@
-namespace UglyToad.Pdf.Parser.PageTree
-{
-    using System.Collections.Generic;
-    using ContentStream;
-    using ContentStream.TypedAccessors;
-    using Cos;
-
-    internal class ResourceDictionaryParser
-    {
-        public ResourceDictionary Parse(PdfDictionary dictionary, ParsingArguments arguments)
-        {
-            var fontDictionary = dictionary.GetDictionaryOrDefault(CosName.FONT);
-
-            var fontMap = new Dictionary<CosName, CosObjectKey>();
-
-            if (fontDictionary != null)
-            {
-                foreach (var entry in fontDictionary)
-                {
-                    fontMap[entry.Key] = new CosObjectKey(entry.Value as CosObject);
-                }
-            }
-
-            var result = new ResourceDictionary();
-
-            result.SetFonts(fontMap);
-
-            return result;
-        }
-    }
-}

src/UglyToad.Pdf/Util/Bootstrapper.cs

@@ -4,7 +4,6 @@
     using Fonts.Parser;
     using Logging;
     using Parser;
-    using Parser.PageTree;
     using Parser.Parts;
     using Parser.Parts.CrossReference;
 
@@ -43,10 +42,6 @@
             var crossReferenceTableParser = new FileCrossReferenceTableParser(logger, dictionaryParser, baseParser, streamParser, crossReferenceParser,
                 new CrossReferenceTableParser(logger, dictionaryParser, baseParser));
             
-            var resourceDictionaryParser = new ResourceDictionaryParser();
-            var simpleFontParser = new SimpleFontParser();
-            var compositeFontParser = new CompositeFontParser();
-
             var cmapParser = new CMapParser();
             var afmParser = new AdobeFontMetricsParser();
             
@@ -62,9 +57,6 @@
             container.Register(dynamicParser);
             container.Register(objectStreamParser);
             container.Register(filterProvider);
-            container.Register(resourceDictionaryParser);
-            container.Register(simpleFontParser);
-            container.Register(compositeFontParser);
             container.Register(cmapParser);
             container.Register(afmParser);
             container.Register(logger);