// PatternPosition.h: interface for the CPatternPosition class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_PATTERNPOSITION_H__9FB82504_34F2_11D6_B9E8_0040F674BE6A__INCLUDED_)
#define AFX_PATTERNPOSITION_H__9FB82504_34F2_11D6_B9E8_0040F674BE6A__INCLUDED_

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

#include <vector>

#include <stdlib.h>
#include "STColSelPic.h"
#include "SError.h"
#include "SDef.h"

class CPatternPosition
{
	bool isInSet(const int nbSet, const int *set, const int val);
	void makeRandomPositions(const int nbPat, const int nbPixel,
							 const int lX, const int lY, const UCHAR *sel);
	void makeDDPositions(const int lX, const int lY, UCHAR *sel,
						 const double minD, const double maxD);
	void getPosAroundThis(const int lX, const int lY, const UCHAR *lSel,
						  const int xx, const int yy,
						  int &xPos, int &yPos);
	bool findEmptyPos(const int lX, const int lY, const UCHAR *lSel,
					  int &xPos, int &yPos, SRECT &bb);
	void eraseCurrentArea(const int lX, const int lY, UCHAR *lSel,
						  std::vector<SPOINT> &ddc, const int xx, const int yy);
	void sel0255To01(const int lX, const int lY, UCHAR *sel, SRECT &bb);
	void prepareCircle(std::vector<SPOINT> &v, const double r);

public:
	std::vector<SPOINT> m_pos;

	CPatternPosition() : m_pos(0){};
	virtual ~CPatternPosition();

	template <class P>
	CPatternPosition(CSTColSelPic<P> &p, const int nbPixel, const double dens,
					 const double minD, const double maxD)
	{
		try {
			m_pos.clear();
			if (dens > 0.00001) {
				// Random position
				int nbPat = I_ROUND(((double)nbPixel * dens));
				//			nbPat= nbPat>(int)(0.9*nbPixel) ?  (int)(0.9*nbPixel) : nbPat;
				nbPat = nbPat > nbPixel ? nbPixel : nbPat;
				if (nbPat > 0)
					makeRandomPositions(nbPat, nbPixel, p.m_lX, p.m_lY, p.m_sel.get());
			} else {
				// Distance-driven position
				makeDDPositions(p.m_lX, p.m_lY, p.m_sel.get(), minD, maxD);
			}
		} catch (SMemAllocError) {
			throw;
		}
	}

	template <class P>
	void drawTest(CSTColSelPic<P> &pic)
	{
		for (std::vector<SPOINT>::iterator pv = m_pos.begin();
			 pv != m_pos.end();
			 pv++) {
			int xx = pv->x;
			int yy = pv->y;
			for (int y = yy - 1; y <= (yy + 1); y++)
				for (int x = xx - 1; x <= (xx + 1); x++)
					if (x >= 0 && y >= 0 && x < pic.m_lX && y < pic.m_lY) {
						UC_PIXEL *pp = pic.m_pic + y * pic.m_lX + x;
						pp->r = 0;
						pp->g = 0;
						pp->b = 255;
						pp->m = 255;
					}
		}
	}
};

#endif // !defined(AFX_PATTERNPOSITION_H__9FB82504_34F2_11D6_B9E8_0040F674BE6A__INCLUDED_)