Minor modifications and updates

src/UglyToad.PdfPig/Content/Line.cs

@@ -1,15 +1,14 @@
 using System;
 using System.Collections.Generic;
-using System.Text;
-using UglyToad.PdfPig.Geometry;
 using System.Linq;
+using UglyToad.PdfPig.Geometry;
 
 namespace UglyToad.PdfPig.Content
 {
     /// <summary>
-    /// A line.
+    /// A line of text.
     /// </summary>
-    public class Line
+    public class TextLine
     {
         /// <summary>
         /// The text of the line.
@@ -32,10 +31,10 @@ namespace UglyToad.PdfPig.Content
         public IReadOnlyList<Word> Words { get; }
 
         /// <summary>
-        /// Create a new <see cref="Word"/>.
+        /// Create a new <see cref="TextLine"/>.
         /// </summary>
-        /// <param name="words">The letters contained in the word.</param>
-        public Line(IReadOnlyList<Word> words)
+        /// <param name="words">The words contained in the word.</param>
+        public TextLine(IReadOnlyList<Word> words)
         {
             if (words == null)
             {
@@ -57,7 +56,14 @@ namespace UglyToad.PdfPig.Content
             var maxY = words.Max(x => x.BoundingBox.Top);
             BoundingBox = new PdfRectangle(minX, minY, maxX, maxY);
 
-            TextDirection = words[0].TextDirection;
+            if (words.All(x => x.TextDirection == words[0].TextDirection))
+            {
+                TextDirection = words[0].TextDirection;
+            }
+            else
+            {
+                TextDirection = TextDirection.Unknown;
+            }
         }
 
         /// <inheritdoc />

src/UglyToad.PdfPig/Geometry/PdfLine.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
-namespace UglyToad.PdfPig.Geometry
+namespace UglyToad.PdfPig.Geometry
 {
     /// <summary>
     /// A line in a PDF file. 
@@ -14,6 +10,18 @@ namespace UglyToad.PdfPig.Geometry
     /// </remarks>
     public struct PdfLine
     {
+        /// <summary>
+        /// Length of the line.
+        /// </summary>
+        public decimal Length
+        {
+            get
+            {
+                decimal l = (Point1.X - Point1.X) * (Point1.X - Point1.X) + (Point1.Y - Point1.Y) * (Point1.Y - Point1.Y);
+                return (decimal)System.Math.Sqrt((double)l);
+            }
+        }
+
         /// <summary>
         /// First point of the line.
         /// </summary>
@@ -25,7 +33,7 @@ namespace UglyToad.PdfPig.Geometry
         public PdfPoint Point2 { get; }
 
         /// <summary>
-        /// A line in a PDF file. 
+        /// Create a new <see cref="PdfLine"/>.
         /// </summary>
         /// <param name="x1"></param>
         /// <param name="y1"></param>
@@ -34,7 +42,7 @@ namespace UglyToad.PdfPig.Geometry
         public PdfLine(decimal x1, decimal y1, decimal x2, decimal y2) : this(new PdfPoint(x1, y1), new PdfPoint(x2, y2)) { }
 
         /// <summary>
-        /// A line in a PDF file. 
+        /// Create a new <see cref="PdfLine"/>.
         /// </summary>
         /// <param name="point1">First point of the line.</param>
         /// <param name="point2">Second point of the line.</param>

src/UglyToad.PdfPig/Geometry/PdfRectangle.cs

@@ -69,7 +69,7 @@
         internal PdfRectangle(short x1, short y1, short x2, short y2) : this((decimal) x1, y1, x2, y2) { }
 
         /// <summary>
-        /// A rectangle in a PDF file. 
+        /// Create a new <see cref="PdfRectangle"/>.
         /// </summary>
         /// <param name="x1"></param>
         /// <param name="y1"></param>