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Editor/CurveObject.h

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+// CCurveObject : header file
+//
+// CurveObject Class, data representaion of the curve. 
+// Functionality :
+//		1. Setting, retrieving and moving knots.
+//      2. Curve calculation
+//		3. HitTesting 
+//
+// Copyright Johan Janssens, 2001 (jjanssens@mail.ru)
+// Feel free to use and distribute. May not be sold for profit. 
+//
+// This code may be used in compiled form in any way you desire. This
+// file may be redistributed unmodified by any means PROVIDING it is
+// not sold for profit without the authors written consent, and
+// providing that this notice and the authors name is included.
+// If the source code in this file is used in any commercial application
+// then acknowledgement must be made to the author of this file
+// 
+// This file is provided "as is" with no expressed or implied warranty.
+// The author accepts no liability for any damage of buiness that this
+// product may cause
+//
+// Please use and enjoy. Please let me know of any bugs/mods/improvements
+// that you have found/implemented and I will fix/incorporate them into 
+// this file 
+
+
+#ifndef _JANSSENS_JOHAN_KNOT_H_
+#define _JANSSENS_JOHAN_KNOT_H_
+
+//Knot Class
+class CKnot : public CObject
+{
+public :
+
+	UINT  x;
+	UINT  y;
+	DWORD dwData;
+
+public :
+
+	CKnot() : x(0), y(0), dwData(true) {}	//Constructors	
+	CKnot(int ptX, int ptY) : 
+			x(ptX), y(ptY), dwData(0)  {}
+
+	void SetPoint(CPoint pt)  {	x = pt.x; y = pt.y;}	//Setting
+	void SetData(DWORD data)  { dwData = data;}
+
+	void GetPoint(LPPOINT pt) { pt->x = x; pt->y = y;}	//Extraction
+
+	//Operator overloading
+	void operator = (CKnot knot)   {x = knot.x; y = knot.y; dwData  = knot.dwData; }
+	void operator = (CPoint point) {x = point.x; y = point.y;}
+
+	bool operator != (CPoint point)
+	{
+		bool b;
+		((x != point.x) && (y != point.y)) ? b = true : b = false;
+		return b;
+	}
+
+	void Serialize(CArchive& ar)
+	{
+		if(ar.IsStoring())
+			ar << x << y << dwData;
+		else
+			ar >> x >> y >> dwData;
+	}
+};
+
+/////////////////////////////////////////////////////////////////////////////
+#endif // _JANSSENS_JOHAN_KNOT_H_
+
+
+#ifndef _JANSSENS_JOHAN_CURVEOBJECT_H_
+#define _JANSSENS_JOHAN_CURVEOBJECT_H_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+#include "CurveObjectDef.h"
+
+class CXmlArchive;
+
+class CCurveObject  : public CObject
+{
+DECLARE_SERIAL( CCurveObject )
+public:
+	CCurveObject();
+	virtual ~CCurveObject();
+
+	//Create Curve Object
+	BOOL CreateCurve(LPCTSTR strName, CRect rcClipRec, UINT nSmoothing = 1, DWORD dwFlags = NULL);
+	
+	void Serialize( CXmlArchive &xmlAr );
+
+	// ClassWizard generated virtual function overrides
+	//{{AFX_VIRTUAL(CCurveObject)
+	public:
+	virtual void Serialize(CArchive& ar);
+	//}}AFX_VIRTUAL
+	
+	//Curve functions
+	void  HitTest(CPoint ptHit, LPHITINFO pHitInfo);
+	BOOL  PtOnKnot (CPoint ptHit, UINT nInterval, UINT*  iIndex);
+	BOOL  PtOnCurve(CPoint ptHit, UINT nInterval, POINT* ptCurve);
+	
+	UINT GetCurveY(UINT ptX);
+
+	//void GetCurveInfo(LPCURVEINFO tagInfo);
+	//void SetCurveInfo(CURVEINFO   tagInfo);
+
+	//Knot functions
+	UINT InsertKnot (CPoint ptCntKnot);					//Operations				
+	BOOL MoveKnot	(CPoint ptMoveTo, UINT nIndex);
+
+	BOOL RemoveKnot		(UINT nIndex);					
+	BOOL RemoveAllKnots	();
+
+	CKnot* FindNearKnot (CPoint pt, UINT nDirection);	//Searching
+
+	CKnot* GetKnot(UINT nIndex);						//Access
+
+	CKnot* GetHeadKnot();								//Retrieval
+	CKnot* GetTailKnot();
+
+	CKnot* GetNextKnot(UINT nIndex);					//Irritation
+	CKnot* GetPrevKnot(UINT nIndex);
+
+	UINT GetKnotCount();								//Status
+
+
+public :
+
+	//Curve Settings
+	BOOL m_bParabolic;
+	BOOL m_bAveraging;
+
+	BOOL m_bDiscreetY;
+	UINT m_nSmoothing;
+
+	//Curve Bounding Rect
+	CRect m_rcClipRect;	
+	
+	//Curve Name
+	CString m_strName;
+
+protected:
+
+		
+private:
+
+	CObArray m_arrKnots;					//Knot Object Array
+	BOOL  m_bIsValid;						//Curve Object Is Initialised
+	inline BOOL IsValid() { return m_bIsValid;};
+
+//	static CCurveDllImpl	m_dllImpl;		//Wrapper for Curve Dll
+	
+};
+
+////////////////////////////////////////////////////////////////////////////
+#endif // _JANSSENS_JOHAN_CURVEOBJECT_H_