/*=========================
// Cross
//
===========================*/
void LineCross::Cross(CDC* pDC)
{
pDC->SelectObject(CPen (PS_SOLID,2,RGB(255,0,0)));
if(LCSCOUNT==4)
{
delta=(LCSP[1].x-LCSP[0].x)*(LCSP[2].y-LCSP[3].y)-(LCSP[2].x-LCSP[3].x)*(LCSP[1].y-LCSP[0].y);
if (delta!=0)
{
rmd=((LCSP[2].x-LCSP[0].x)*(LCSP[2].y-LCSP[3].y)-(LCSP[2].x-LCSP[3].x)*(LCSP[2].y-LCSP[0].y))/delta;
if (rmd>=0&&rmd<=1)
{
miu=((LCSP[1].x-LCSP[0].x)*(LCSP[2].y-LCSP[0].y)-(LCSP[2].x-LCSP[0].x)*(LCSP[1].y-LCSP[0].y))/delta;
if (miu>=0&&miu<=1)//
{
temp.x=long(LCSP[0].x+rmd*(LCSP[1].x-LCSP[0].x));
temp.y=long(LCSP[0].y+rmd*(LCSP[1].y-LCSP[0].y));
ShowPoints(pDC,temp);
}
}
}
LCSCOUNT=0;
}
pDC->SetTextColor(RGB(65,180,65));
pDC->TextOut(700,70,_T("两点画线"));
pDC->TextOut(700,100,_T("两线求交"));
}
void CDialog::OnPaint(CDC& rDC)
{
// Not resizable OR size grip disabled?
if (m_vGravities.empty() || m_bNoSizeGrip)
return;
// Get window dimensions.
CRect rcClient = ClientRect();
// Get bottom right co-ordinates.
CPoint ptCorner(rcClient.right-1, rcClient.bottom-1);
// Create pens.
CPen oDarkPen (PS_SOLID, 0, ::GetSysColor(COLOR_BTNSHADOW));
CPen oLightPen(PS_SOLID, 0, ::GetSysColor(COLOR_BTNHIGHLIGHT));
CPen oFacePen (PS_SOLID, 0, ::GetSysColor(COLOR_BTNFACE));
// For all lines.
for (int i = 0; i < 12; ++i)
{
// Select the required pen.
if ((i % 4) == 3)
rDC.Select(oLightPen);
else if ( ((i % 4) == 1) || ((i % 4) == 2) )
rDC.Select(oDarkPen);
else
rDC.Select(oFacePen);
// Draw the line.
rDC.Line(ptCorner.x-i-1, ptCorner.y, ptCorner.x, ptCorner.y-i-1);
}
// Save grip position for later.
m_rcOldGrip = CRect(CPoint(ptCorner.x-12, ptCorner.y-12), CSize(13, 13));
#ifdef _DEBUG
// Passify BoundsChecker.
rDC.Select(CPen(NULL_PEN));
#endif
}
#include "StdAfx.h"
#include "DiaEntity.h"
CPen DiaEntity::m_penBlue = CPen(PS_SOLID, 5, RGB(0, 0, 255));
DiaEntity::DiaEntity(void) :
m_penColor(RGB(0,0,0)),
m_penStyle(PS_SOLID)
{
m_selected = false;
}
DiaEntity::~DiaEntity(void)
{
}
void DiaEntity::setSelected(bool value)
{
m_selected = value;
}
bool DiaEntity::isSelected() const
{
return m_selected;
}
void DiaEntity::setCentralPoint(CPoint point)
{
CPoint oldPoint = getCentralPoint();
