#26 make all operation classes public and test

src/UglyToad.PdfPig/Graphics/Operations/CloseFillPathEvenOddRuleAndStroke.cs

@@ -6,7 +6,7 @@
     /// <summary>
     /// Close, fill, and then stroke the path, using the even-odd rule to determine the region to fill.
     /// </summary>
-    internal class CloseFillPathEvenOddRuleAndStroke : IGraphicsStateOperation
+    public class CloseFillPathEvenOddRuleAndStroke : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.

src/UglyToad.PdfPig/Graphics/Operations/CloseFillPathNonZeroWindingAndStroke.cs

@@ -6,7 +6,7 @@
     /// <summary>
     /// Close, fill, and then stroke the path, using the nonzero winding number rule to determine the region to fill. 
     /// </summary>
-    internal class CloseFillPathNonZeroWindingAndStroke : IGraphicsStateOperation
+    public class CloseFillPathNonZeroWindingAndStroke : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.

src/UglyToad.PdfPig/Graphics/Operations/FillPathEvenOddRuleAndStroke.cs

@@ -6,7 +6,7 @@
     /// <summary>
     /// Fill and then stroke the path, using the even-odd rule to determine the region to fill.
     /// </summary>
-    internal class FillPathEvenOddRuleAndStroke : IGraphicsStateOperation
+    public class FillPathEvenOddRuleAndStroke : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.

src/UglyToad.PdfPig/Graphics/Operations/SetNonStrokeColorDeviceGray.cs

@@ -6,7 +6,7 @@
     /// <summary>
     /// Set the gray level for non-stroking operations.
     /// </summary>
-    internal class SetNonStrokeColorDeviceGray : IGraphicsStateOperation
+    public class SetNonStrokeColorDeviceGray : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.

src/UglyToad.PdfPig/Graphics/Operations/SetStrokeColorDeviceCmyk.cs

@@ -6,7 +6,7 @@
     /// <summary>
     /// Set the stroking color space to DeviceCMYK and set the color to use for stroking operations.
     /// </summary>
-    internal class SetStrokeColorDeviceCmyk : IGraphicsStateOperation
+    public class SetStrokeColorDeviceCmyk : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.

src/UglyToad.PdfPig/Graphics/Operations/SetStrokeColorDeviceGray.cs

@@ -6,7 +6,7 @@
     /// <summary>
     /// Set the gray level for stroking operations.
     /// </summary>
-    internal class SetStrokeColorDeviceGray : IGraphicsStateOperation
+    public class SetStrokeColorDeviceGray : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.

src/UglyToad.PdfPig/Graphics/Operations/TextPositioning/MoveToNextLineWithOffset.cs

@@ -13,7 +13,7 @@
     /// Tm = Tlm = 0  1  0  * Tlm<br />
     ///            tx ty 1
     /// </remarks>
-    internal class MoveToNextLineWithOffset : IGraphicsStateOperation
+    public class MoveToNextLineWithOffset : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.

src/UglyToad.PdfPig/Graphics/Operations/TextPositioning/MoveToNextLineWithOffsetSetLeading.cs

@@ -8,7 +8,7 @@
     /// Move to the start of the next line, offset from the start of the current line by (tx, ty).
     /// This operator also sets the leading parameter in the text state.
     /// </summary>
-    internal class MoveToNextLineWithOffsetSetLeading : IGraphicsStateOperation
+    public class MoveToNextLineWithOffsetSetLeading : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.
@@ -18,10 +18,21 @@
         /// <inheritdoc />
         public string Operator => Symbol;
 
+        /// <summary>
+        /// The x value of the offset.
+        /// </summary>
         public decimal Tx { get; }
 
+        /// <summary>
+        /// The y value of the offset and the inverse of the leading parameter.
+        /// </summary>
         public decimal Ty { get; }
 
+        /// <summary>
+        /// Create a new <see cref="MoveToNextLineWithOffsetSetLeading"/>.
+        /// </summary>
+        /// <param name="tx">The x value of the offset.</param>
+        /// <param name="ty">The y value of the offset and the inverse of the leading parameter.</param>
         public MoveToNextLineWithOffsetSetLeading(decimal tx, decimal ty)
         {
             Tx = tx;

src/UglyToad.PdfPig/Graphics/Operations/TextPositioning/SetTextMatrix.cs

@@ -8,7 +8,7 @@
     /// <summary>
     /// Set the text matrix and the text line matrix.
     /// </summary>
-    internal class SetTextMatrix : IGraphicsStateOperation
+    public class SetTextMatrix : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.
@@ -18,8 +18,15 @@
         /// <inheritdoc />
         public string Operator => Symbol;
 
+        /// <summary>
+        /// The values of the text matrix.
+        /// </summary>
         public decimal[] Value { get; }
 
+        /// <summary>
+        /// Create a new <see cref="SetTextMatrix"/>.
+        /// </summary>
+        /// <param name="value">The values of the text matrix.</param>
         public SetTextMatrix(decimal[] value)
         {
             if (value.Length != 6)

src/UglyToad.PdfPig/Graphics/Operations/TextShowing/ShowTextsWithPositioning.cs

@@ -4,6 +4,7 @@
     using System.Collections.Generic;
     using System.IO;
     using Tokens;
+    using Writer;
 
     /// <inheritdoc />
     /// <summary>
@@ -12,7 +13,7 @@
     /// If the element is a string, this operator shows the string. 
     /// If it is a number, the operator adjusts the text position by that amount
     /// </summary>
-    internal class ShowTextsWithPositioning : IGraphicsStateOperation
+    public class ShowTextsWithPositioning : IGraphicsStateOperation
     {
         /// <summary>
         /// The symbol for this operation in a stream.
@@ -59,7 +60,20 @@
         /// <inheritdoc />
         public void Write(Stream stream)
         {
-            throw new NotImplementedException();
+            stream.WriteText("[");
+            for (var i = 0; i < Array.Count; i++)
+            {
+                TokenWriter.WriteToken(Array[i], stream);
+
+                if (i < Array.Count - 1)
+                {
+                    stream.WriteWhiteSpace();
+                }
+            }
+            stream.WriteText("]");
+            stream.WriteWhiteSpace();
+            stream.WriteText(Symbol);
+            stream.WriteNewLine();
         }
     }
 }