A fast and lightweight cell control

#pragma once
//----------------------------------------------------------------------------//
//�����㷨��
//----------------------------------------------------------------------------//
namespace mycell{
		//����lprc1,lprc2�Ƿ��ڽ�
	inline BOOL rect_adjoin(LPCRECT lprc1,LPCRECT lprc2)
	{
		return (lprc1->right==lprc2->left || lprc1->left==lprc2->right)
			&& lprc1->bottom>=lprc2->top 
			&& lprc1->top<=lprc2->bottom
			|| (lprc1->bottom==lprc2->top || lprc1->top==lprc2->bottom)
			&& lprc1->right>=lprc2->left
			&& lprc1->left<=lprc2->right;
	}
	//�������Ƿ����
	inline BOOL rect_equal(LPCRECT lprc1,LPCRECT lprc2)
	{
		return lprc1->left==lprc2->left
			&& lprc1->right==lprc2->right
			&& lprc1->top==lprc2->top
			&& lprc1->bottom==lprc2->bottom;
	}
	//�������Ƿ����루û���ص����֣�
	inline BOOL rect_disjoin(LPCRECT lprc1,LPCRECT lprc2)
	{
		return lprc1->left > lprc2->right
			|| lprc1->right< lprc2->left
			|| lprc1->top > lprc2->bottom
			|| lprc1->bottom<lprc2->top;
	}

	//����lprc1�Ƿ���lprc2���ڲ�
	inline BOOL rect_internal(LPCRECT lprc1,LPCRECT lprc2)
	{
		return lprc1->left>=lprc2->left && lprc1->right<=lprc2->right
			&& lprc1->top>=lprc2->top && lprc1->bottom<=lprc2->bottom;
	}
	//����lprc1�Ƿ����lprc2
	inline BOOL rect_contain(LPCRECT lprc1,LPCRECT lprc2)
	{
		return rect_internal(lprc2,lprc1);
		//return lprc1->left<=lprc2->left && lprc1->right>=lprc2->right
		//	&& lprc1->top<=lprc2->top && lprc1->bottom>=lprc2->bottom;
	}
	//��Կ�����ཻ���п�������RRS_EUQAL,RRS_CONTAIN,RRS_INTERNAL
	inline BOOL intersect(LPCRECT lprc1,LPCRECT lprc2)
	{
		return !(
		lprc1->left >= lprc2->right 
			|| lprc1->right <= lprc2->left
			|| lprc1->top >= lprc2->bottom
			|| lprc1->bottom <= lprc2->top);
	}
	inline eRectRelationShip get_RectRelationShip(LPCRECT lprc1,LPCRECT lprc2)
	{
		if(rect_equal(lprc1,lprc2))
			return RRS_EQUAL;
		if(rect_disjoin(lprc1,lprc2))
			return RRS_DISJOIN;
		if(rect_internal(lprc1,lprc2))
			return RRS_INTERNAL;
		if(rect_contain(lprc1,lprc2))
			return RRS_CONTAIN;
		return RRS_INTERSECT;
	}
}//namespace mycell