polygonclipview.h

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// PolygonClipView.h : interface of the CPolygonClipView class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_POLYGONCLIPVIEW_H__476467E3_C815_43CA_AF50_10AD5255877C__INCLUDED_)
#define AFX_POLYGONCLIPVIEW_H__476467E3_C815_43CA_AF50_10AD5255877C__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000


#define EdgeNum 6
#define MAX 2*EdgeNum

typedef struct{
	float x,y;
}Vertex;

typedef Vertex Edge[2];
typedef Vertex VertexArray[MAX];


class CPolygonClipView : public CView
{
protected: // create from serialization only
	CPolygonClipView();
	DECLARE_DYNCREATE(CPolygonClipView)

// Attributes
public:
	CPolygonClipDoc* GetDocument();
	CRect screen;
	Edge clipBoundary;
	int *outLength;//= new int outlength;
	int inLength;
	VertexArray inVertexArray,outVertexArray;
//	CPoint startpoint,lastendpoint;
	int count;

// Operations
public:


// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CPolygonClipView)
	public:
	virtual void OnDraw(CDC* pDC);  // overridden to draw this view
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
	protected:
	//}}AFX_VIRTUAL

// Implementation
public:
	void SHPolygonClip(int inLength,VertexArray inVertexArray,int *outLength,VertexArray outVertexArray,Edge clipBoundary);
	void Output(Vertex *newVertex,int *outLength,VertexArray outVertexArray);
	bool Inside(Vertex* testVertex, Edge clipBoundary);
	void Intersect(Vertex *s,Vertex *p,Edge clipBoundary,Vertex *I);
	virtual ~CPolygonClipView();
#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif

protected:

// Generated message map functions
protected:
	//{{AFX_MSG(CPolygonClipView)
	afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

#ifndef _DEBUG  // debug version in PolygonClipView.cpp
inline CPolygonClipDoc* CPolygonClipView::GetDocument()
   { return (CPolygonClipDoc*)m_pDocument; }
#endif

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_POLYGONCLIPVIEW_H__476467E3_C815_43CA_AF50_10AD5255877C__INCLUDED_)