Support paragraph formatting (except lists and borders) in RTF to DOCX converter

Author: manfromarce

src/DocSharp.Docx/DocxToRtf/DocxToRtfConverter.Paragraph.cs

@@ -314,7 +314,7 @@ internal void ProcessParagraphFormatting(Paragraph paragraph, RtfStringWriter sb
             sb.Write(@"\nosnaplinegrid");
         }
         var outlineLevel = paragraph.GetEffectiveProperty<OutlineLevel>();
-        if (outlineLevel?.Val != null &&  outlineLevel.Val.HasValue)
+        if (outlineLevel?.Val != null && outlineLevel.Val.HasValue)
         {
             sb.Write($"\\outline{outlineLevel.Val.Value}");
         }

src/DocSharp.Docx/Rtf/RtfControlWord.cs

@@ -10,5 +10,11 @@ public RtfControlWord(string name)
     {
         Name = name;
     }
+
+    public RtfControlWord(string name, int value)
+    {
+        Name = name;
+        Value = value;
+    }
 }
 

src/DocSharp.Docx/Rtf/RtfDestination.cs

@@ -11,7 +11,7 @@ internal class RtfDestination : RtfGroup
 	public int? Value { get; set; }
     public bool HasValue { get; set; }
 
-	public RtfDestination(string name, bool isIgnorable = false)
+    public RtfDestination(string name, bool isIgnorable = false)
 	{
 		Name = name ?? string.Empty;
 		IsIgnorable = isIgnorable;

src/DocSharp.Docx/Rtf/RtfShadingMapper.cs

@@ -10,7 +10,7 @@ namespace DocSharp.Rtf;
 
 internal static class RtfShadingMapper
 {
-    internal static EnumValue<ShadingPatternValues> GetShadingType(string word, int? value)
+    internal static EnumValue<ShadingPatternValues>? GetShadingType(string word, int? value)
     {
         switch (word)
         {
@@ -133,6 +133,6 @@ internal static EnumValue<ShadingPatternValues> GetShadingType(string word, int?
                 }
                 break;
         }
-        return ShadingPatternValues.Clear;
+        return null;
     }
 }

src/DocSharp.Docx/RtfToDocx/FormattingState.cs

@@ -0,0 +1,112 @@
+using DocumentFormat.OpenXml.Wordprocessing;
+
+namespace DocSharp.Docx;
+
+internal class FormattingState
+{
+    public bool Bold { get; set; }
+    public bool Italic { get; set; }
+    public bool Strike { get; set; }
+    public bool DoubleStrike { get; set; }
+    public bool Subscript { get; set; }
+    public bool Superscript { get; set; }
+    public bool SmallCaps { get; set; }
+    public bool AllCaps { get; set; }
+    public bool Hidden { get; set; }
+    public bool Emboss { get; set; }
+    public bool Imprint { get; set; }
+    public bool Outline { get; set; }
+    public bool Shadow { get; set; }
+
+    public UnderlineValues? Underline { get; set; }
+    public EmphasisMarkValues? Emphasis { get; set; }
+
+    public Border? CharacterBorder { get; set; }
+    public Shading? CharacterShading { get; set; }
+
+    public int? FontIndex { get; set; }
+    public int? FontColorIndex { get; set; }
+    public int? HighlightColorIndex { get; set; }
+    public int? UnderlineColorIndex { get; set; }
+
+    public int? FontSize { get; set; }
+    public int? FontScaling { get; set; }
+    public int? FontSpacing { get; set; }
+    public int? FitText { get; set; }
+    public int? Kerning { get; set; }
+    public int? VerticalOffset { get; set; }
+
+    public int? CharacterStyleIndex { get; set; }
+
+    public FormattingState Clone()
+    {            
+        return new FormattingState 
+        { 
+            Bold = this.Bold, 
+            Italic = this.Italic, 
+            Strike = this.Strike, 
+            DoubleStrike = this.DoubleStrike,
+            Subscript = this.Subscript,
+            Superscript = this.Superscript,
+            SmallCaps = this.SmallCaps,
+            AllCaps = this.AllCaps,
+            Hidden = this.Hidden,
+            Emboss = this.Emboss,
+            Imprint = this.Imprint,
+            Outline = this.Outline,
+            Shadow = this.Shadow,
+
+            Underline = this.Underline,
+            Emphasis = this.Emphasis,
+
+            CharacterBorder = this.CharacterBorder,
+            CharacterShading = this.CharacterShading,
+
+            FontIndex = this.FontIndex,
+            FontColorIndex = this.FontColorIndex,
+            HighlightColorIndex = this.HighlightColorIndex,
+            UnderlineColorIndex = this.UnderlineColorIndex,
+            
+            FontSize = this.FontSize,
+            FontScaling = this.FontScaling,
+            FontSpacing = this.FontSpacing,
+            FitText = this.FitText,
+            Kerning = this.Kerning,
+            VerticalOffset = this.VerticalOffset,
+
+            CharacterStyleIndex = this.CharacterStyleIndex
+        };
+    }
+
+    public void Clear()
+    {
+        Bold = false;
+        Italic = false;
+        Strike = false;
+        DoubleStrike = false;
+        Subscript = false;
+        Superscript = false;
+        SmallCaps = false;
+        AllCaps = false;
+        Hidden = false;
+        Emboss = false;
+        Imprint = false;
+        Outline = false;
+        Shadow = false;
+        Underline = null;
+        Emphasis = null;
+        CharacterBorder = null;
+        CharacterShading = null;
+        FontIndex = null;
+        FontColorIndex = null;
+        HighlightColorIndex = null;
+        UnderlineColorIndex = null;
+        FontSize = null;
+        FontScaling = null;
+        FontSpacing = null;
+        FitText = null;
+        Kerning = null;
+        VerticalOffset = null;
+        CharacterStyleIndex = null;
+    }
+}