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diff --git a/src/dimension.h b/src/dimension.h
index 26fc588..ba30b8f 100644
--- a/src/dimension.h
+++ b/src/dimension.h
@@ -1,32 +1,68 @@
 #ifndef __DIMENSION_H__
 #define __DIMENSION_H__
 
+#include "connection.h"
 #include "object.h"
 
+class Line;
+
+enum DimensionType { DTLinear, DTLinearVert, DTLinearHorz, DTRadial, DTDiametric, DTCircumferential, DTAngular, DTLeader };
+
 class Dimension: public Object
 {
+	friend class Line;
+	friend class Geometry;
+
 	public:
-		Dimension(Vector, Vector, Object * p = 0);
+		Dimension(Vector, Vector, DimensionType dt = DTLinear, Object * p = 0);
+//		Dimension(Connection, Connection, DimensionType dt = DTLinear, Object * p = 0);
 		~Dimension();
 
-		virtual void Draw(QPainter *);
+		virtual void Draw(Painter *);
 		virtual Vector Center(void);
 		virtual bool Collided(Vector);
 		virtual void PointerMoved(Vector);
 		virtual void PointerReleased(void);
-//		virtual bool NeedsUpdate(void);
+		virtual bool HitTest(Point);
+		virtual void Enumerate(FILE *);
+		virtual Object * Copy(void);
+		virtual Vector GetPointAtParameter(double parameter);
+		virtual void MovePointAtParameter(double parameter, Vector);
+//		virtual void Connect(Object *, double);
+//		virtual void Disconnect(Object *, double);
+//		virtual void DisconnectAll(Object *);
+		virtual QRectF Extents(void);
+		void FlipSides(void);
+
+	protected:
+		void SaveHitState(void);
+		bool HitStateChanged(void);
 
 	protected:
 		Vector endpoint;					// Starting point is Object::position
 		Vector oldPoint;					// Used for dragging
+		Point oldEndpoint;
 
 	private:
 		bool dragging;
 		bool draggingHandle1;
 		bool draggingHandle2;
-//		bool needUpdate;
 		bool objectWasDragged;
 		double length;
+		DimensionType dimensionType;
+		bool hitPoint1;
+		bool hitPoint2;
+		bool hitLine;
+		bool hitFlipSwitch;
+		bool oldHitPoint1, oldHitPoint2, oldHitLine, oldHitFlipSwitch;
+	public:
+		double size;						// Size of arrows/text in base units
+
+	private:
+		// We use these in lieu of the built-in connected[] array; no reason to
+		// do it this way especially
+//		Connection point1;
+//		Connection point2;
 };
 
 #endif	// __DIMENSION_H__