#include "StdAfx.h"
#include ".\itemequilateral.h"
#include "SigmaDoc.h"
#include "SigmaView.h"
#include "DCHelp.h"

CItemEquilateral::CItemEquilateral(CSigmaDoc* ppDoc)
: CItem(ppDoc)
, m_PolygonNumber(5)
, loop(0)
{
	this->SetType(ITEM_EQUILATERAL);
	//m_nPropertyView=this->ShowPropertyPane(1);
	EnableRButtonCancel(TRUE);
	m_nPropertyView = 0;
}

CItemEquilateral::~CItemEquilateral(void)
{
	//ShowPropertyPane(m_nPropertyView);
}

void CItemEquilateral::OnLButtonDown(CDC* pDC, UINT nFlags, CPoint point, int vk)
{
	SetScreenDC(pDC);
	GetDC()->Create(pDC);
	switch(loop)
	{
	case 0:
		PointStart=GetReal(point);
		PointEnd=PointStart;
		DrawLineReal(PointStart.x0,PointStart.y0,PointEnd.x0,PointEnd.y0);
		Draw(GetDC(),PointStart,PointEnd,FALSE);
		break;
	case 1:
		DrawLineReal(PointStart.x0,PointStart.y0,PointEnd.x0,PointEnd.y0);
		DoSelectEnd();
		loop=-1;
		break;
	}
	loop++;
}

BOOL CItemEquilateral::OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags)
{
	if (m_pScreenDC == 0 || m_pBackGroundDC == 0)
		return FALSE;

	CRect rect = m_client;
	CDC* pDC = m_pScreenDC;
	DCHelp::ClearDC(pDC, m_BackColor);
	pDC->BitBlt(0, 0, rect.Width(), rect.Height(), m_pBackGroundDC, 0, 0, SRCCOPY); //画背景图 清空屏幕上临时绘制的图形
	return TRUE;
}

int CItemEquilateral::OnMouseMove(CDC* pDC, UINT nFlags, CPoint point)
{
	SetScreenDC(pDC);
	GetDC()->Create(pDC);
	switch(loop)
	{
	case 1:
		DrawLineReal(PointStart.x0,PointStart.y0,PointEnd.x0,PointEnd.y0);
		Draw(GetDC(),PointStart,PointEnd,FALSE);
		PointEnd=GetReal(point);
		DrawLineReal(PointStart.x0,PointStart.y0,PointEnd.x0,PointEnd.y0);
		Draw(GetDC(),PointStart,PointEnd,FALSE);

		//设置状态条信息
		//SetStatusBarLengthInfo(PointStart.x0,PointStart.y0,PointEnd.x0,PointEnd.y0);
		break;
	}
	return 1;
}

void CItemEquilateral::OnDraw(CXyDC* pDC)
{
}

BOOL CItemEquilateral::DoSelectEnd(void)
{
	Draw(GetDC(),PointStart,PointEnd,TRUE);
	return TRUE;
}

void CItemEquilateral::Draw(CXyDC *pDC, dfPoint &pd, dfPoint &pu, BOOL bAdd)
{
	CList<dfPoint,dfPoint> PointList;
	dfPoint point;

	AfxGetPublicFunction()->GetEquilateralPolyPoints(PointList, pd, pu, m_PolygonNumber);
	if(pDC)
	{
		int old = pDC->GetDC()->SetROP2(R2_NOTXORPEN);

		POSITION pos=PointList.GetHeadPosition();
		point = PointList.GetNext(pos);
		pDC->MoveTo(point.x0,point.y0);
		while(pos)
		{
			point = PointList.GetNext(pos);
			pDC->LineTo(point.x0,point.y0);
		}

		pDC->GetDC()->SetROP2(old);
	}

	if(bAdd)
	{
		CCurveEx* pCurve=new CCurveEx;
		pCurve->SetPoints(PointList,2);
		pCurve->GetLocation();
		POSITION pos=this->AddElement(pCurve,DOUBLEFOX_CURVE);
		//GetDoc()->Select(pos);
	}
}