crect.cpp

基于Windml2.0的窗口系统原代码 , 以及和MFC CDC兼容的CDC

////////////////////////////////////////////////////////////////////////
//
//  作者：
//  创建日期：
//  最后修改日期：
//
////////////////////////////////////////////////////////////////////////

#include "crect.h"
//##ModelId=3FC70480008B
CRect::CRect ()
{
	left = 0;
	right = 0;
	top = 0;
	bottom = 0;
}
//##ModelId=3FC70480008C
CRect::CRect (int Left, int Top, int Right, int Bottom)
{
	left = Left;
	right = Right;
	top = Top;
	bottom = Bottom;
}
//##ModelId=3FC704800091
CRect::CRect(CPoint point,CSize size)
{
	left = point.x;
	right = point.x + size.cx;
	top = point.y;
	bottom = point.y + size.cy;
}
//##ModelId=3FC704800096
CRect::CRect(CPoint leftTop,CPoint rightBottom)
{
   	left = leftTop.x;
	right = rightBottom.x ;
	top = leftTop.y;
	bottom = rightBottom.y ;
}

//##ModelId=3FC704800099
const CRect & CRect::operator=(const CRect &rect)
{
	left = rect.Left();
	right = rect.Right();
	top = rect.Top();
	bottom = rect.Bottom();
	return *this ;
}

//##ModelId=3FC70480009B
CRect CRect::operator=(CRect rect)
{
	left = rect.Left();
	right = rect.Right();
	top = rect.Top();
	bottom = rect.Bottom();
	return *this ;
}

//##ModelId=3FC7048000A0
int CRect::operator==(const CRect &rect) const
{
	if(left == rect.Left() && right == rect.Right() && top == rect.Top() && bottom == rect.Bottom())
	//if equal than 0
		return 1;
	else
	//if not equal than 1
		return 0;	
	
}

//##ModelId=3FC7048000A3
int CRect::operator!=(const CRect &rect) const
{
	if(left != rect.Left() || right != rect.Right() ||  top != rect.Top() || bottom != rect.Bottom())
	//if equal than 0
		return 1;
	else
	//if not equal than 1
		return 0;
}

//##ModelId=3FC7048000A9
int CRect::Width()
{
	return (right - left);
}

//##ModelId=3FC7048000AA
int CRect::Height()
{
	return (bottom - top);
}

//##ModelId=3FC7048000AB
int CRect::Left() const
{
	return left;
}
//##ModelId=3FC7048000AD
int CRect::Right() const
{
	return right;
}
//##ModelId=3FC7048000AF
int CRect::Top()   const
{
	return top;
}
//##ModelId=3FC7048000B1
int CRect::Bottom()  const
{
	return bottom;
}
//A point is within CRect if it lies on the left or top side or is within all four sides. 
//A point on the right or bottom side is outside CRect.
//##ModelId=3FC7048000B4
bool CRect::PtInRect (int x, int y)
{
		NormalizeRect();
		if(x >= left && x < right && y < bottom && y >= top)
			return true;
		else
			return false;
}
//##ModelId=3FC7048000B7
bool  CRect::PtInRect(POINT point) 
{
	return PtInRect(point.x,point.y);
}

//##ModelId=3FC7048000B9
bool  CRect::PtInRect(CPoint point) 
{
	return PtInRect(point.x,point.y);
}
//	将矩形进行规格化处理，即保证处理后的数值中，left < right, top < bottom。
//##ModelId=3FC7048000BE
void CRect::NormalizeRect()
{
	if(Width() < 0){
		int tmp = right;
		right = left;
		left = tmp;
	}
	
	if(Height() < 0){
		int tmp = bottom;
		bottom = top;
		top = tmp;		
	}

}

//##ModelId=3FC7048000BF
const CPoint CRect::TopLeft( ) const
{
    CPoint tmp(left,top);
	return tmp;
	
}
//##ModelId=3FC7048000C1
const CPoint CRect::BottomRight( ) const
{
	return CPoint(right,bottom);
}
//##ModelId=3FC7048000C3
CPoint CRect::CenterPoint( ) const
{
	return CPoint((right + left) / 2 , (bottom + top) /2);
}