initial commit

SubProject/QRCodeLib/geom/Line.cs

@@ -0,0 +1,160 @@
+using System;
+using QRCodeUtility = ThoughtWorks.QRCode.Codec.Util.QRCodeUtility;
+
+namespace ThoughtWorks.QRCode.Geom
+{	
+	public class Line
+	{
+        internal int x1, y1, x2, y2;
+
+		virtual public bool Horizontal
+		{
+			get
+			{
+				if (y1 == y2)
+					return true;
+				else
+					return false;
+			}
+			
+		}
+		virtual public bool Vertical
+		{
+			get
+			{
+				if (x1 == x2)
+					return true;
+				else
+					return false;
+			}
+			
+		}
+		virtual public Point Center
+		{
+			get
+			{
+				int x = (x1 + x2) / 2;
+				int y = (y1 + y2) / 2;
+				return new Point(x, y);
+			}
+			
+		}
+		virtual public int Length
+		{
+			get
+			{
+				int x = System.Math.Abs(x2 - x1);
+				int y = System.Math.Abs(y2 - y1);
+				int r = QRCodeUtility.sqrt(x * x + y * y);
+				return r;
+			}
+			
+		}		
+		
+		public Line()
+		{
+			x1 = y1 = x2 = y2 = 0;
+		}
+
+		public Line(int x1, int y1, int x2, int y2)
+		{
+			this.x1 = x1;
+			this.y1 = y1;
+			this.x2 = x2;
+			this.y2 = y2;
+		}
+		public Line(Point p1, Point p2)
+		{
+			x1 = p1.X;
+			y1 = p1.Y;
+			x2 = p2.X;
+			y2 = p2.Y;
+		}
+		public virtual Point getP1()
+		{
+			return new Point(x1, y1);
+		}
+		
+		public virtual Point getP2()
+		{
+			return new Point(x2, y2);
+		}
+		
+		public virtual void  setLine(int x1, int y1, int x2, int y2)
+		{
+			this.x1 = x1;
+			this.y1 = y1;
+			this.x2 = x2;
+			this.y2 = y2;
+		}
+		public virtual void  setP1(Point p1)
+		{
+			x1 = p1.X;
+			y1 = p1.Y;
+		}
+		public virtual void  setP1(int x1, int y1)
+		{
+			this.x1 = x1;
+			this.y1 = y1;
+		}
+		public virtual void  setP2(Point p2)
+		{
+			x2 = p2.X;
+			y2 = p2.Y;
+		}
+		public virtual void  setP2(int x2, int y2)
+		{
+			this.x2 = x2;
+			this.y2 = y2;
+		}
+		
+		public virtual void  translate(int dx, int dy)
+		{
+			this.x1 += dx;
+			this.y1 += dy;
+			this.x2 += dx;
+			this.y2 += dy;
+		}
+		
+		//check if two lines are neighboring. allow only 1 dot difference 
+		public static bool isNeighbor(Line line1, Line line2)
+		{
+			if ((System.Math.Abs(line1.getP1().X - line2.getP1().X) < 2 && System.Math.Abs(line1.getP1().Y - line2.getP1().Y) < 2) && (System.Math.Abs(line1.getP2().X - line2.getP2().X) < 2 && System.Math.Abs(line1.getP2().Y - line2.getP2().Y) < 2))
+				return true;
+			else
+				return false;
+		}
+		
+		public static bool isCross(Line line1, Line line2)
+		{
+			if (line1.Horizontal && line2.Vertical)
+			{
+				if (line1.getP1().Y > line2.getP1().Y && line1.getP1().Y < line2.getP2().Y && line2.getP1().X > line1.getP1().X && line2.getP1().X < line1.getP2().X)
+					return true;
+			}
+			else if (line1.Vertical && line2.Horizontal)
+			{
+				if (line1.getP1().X > line2.getP1().X && line1.getP1().X < line2.getP2().X && line2.getP1().Y > line1.getP1().Y && line2.getP1().Y < line1.getP2().Y)
+					return true;
+			}
+			
+			return false;
+		}
+		public static Line getLongest(Line[] lines)
+		{
+			Line longestLine = new Line();
+			for (int i = 0; i < lines.Length; i++)
+			{
+				if (lines[i].Length > longestLine.Length)
+				{
+					longestLine = lines[i];
+				}
+			}
+			return longestLine;
+		}
+		public override String ToString()
+		{
+			return "(" + System.Convert.ToString(x1) + "," + System.Convert.ToString(y1) + ")-(" + System.Convert.ToString(x2) + "," + System.Convert.ToString(y2) + ")";
+		}
+	}
+}