#include "StdAfx.h"
#include "itemarc.h"


CItemArc::CItemArc(CSigmaDoc * ppDoc)
: CItem(ppDoc)
, m_state(CArc::drawArc)
, m_bDoSelectEnd(TRUE)
, m_bDrawCtrl(FALSE)
, m_nDrawType(0)
, m_bFirst(true)
{
	this->SetType(ITEM_ARC);
	loop=0;
	EnableRButtonCancel(TRUE);
}

CItemArc::~CItemArc(void)
{
}

void CItemArc::OnLButtonDown(CDC* pDC, UINT nFlags, CPoint point, int vk)
{
	SetScreenDC(pDC);
	GetDC()->Create(pDC);
	CPoint2D dp=GetDC()->GetReal(point);
	m_bFirst = true;
	switch(loop)
	{
	case 0:
		PointStart=dp;
		PointMiddle=PointStart;
		break;
	case 1:
		//DrawLineReal(PointStart.x0, PointStart.y0, PointMiddle.x0, PointMiddle.y0);
		PointMiddle=dp;
		PointEnd=PointMiddle;
		RectArc.Empty();
		{
			double r;
			if(!AfxGetPublicFunction()->GetCircumcenter(dp.x0,dp.y0,r,PointStart.x0,PointStart.y0,PointMiddle.x0,PointMiddle.y0,PointEnd.x0,PointEnd.y0) )
				break;
			RectArc.SetRect(dp.x0-r,dp.y0-r,dp.x0+r,dp.y0+r);
			Draw(RectArc,PointStart,PointEnd);
		}
		break;
	case 2:
		{
			Draw(RectArc,PointStart,PointEnd);
			PointEnd=dp;
			//if(m_bDoSelectEnd) 
			DoSelectEnd();
			Draw(RectArc, PointStart, PointEnd);
		}
		loop=-1;
		break;
	}
	loop++;
}

int CItemArc::OnMouseMove(CDC* pDC, UINT nFlags, CPoint point)
{
	SetScreenDC(pDC);
	GetDC()->Create(pDC);
	CPoint2D dp=GetDC()->GetReal(point);
	
	switch(loop)
	{
	case 1:
		DrawLineReal(PointStart.x0,PointStart.y0,PointMiddle.x0,PointMiddle.y0);
		PointMiddle=dp;
		DrawLineReal(PointStart.x0,PointStart.y0,PointMiddle.x0,PointMiddle.y0);
		break;
	case 2:
		{
			double r;
			CPoint2D cp;
			
			if(!AfxGetPublicFunction()->GetCircumcenter(cp.x0,cp.y0,r,PointStart.x0,PointStart.y0,PointMiddle.x0,PointMiddle.y0,PointEnd.x0,PointEnd.y0) )
				break;

			//if (!m_bFirst)
			if(!RectArc.IsEmpty())
				Draw(RectArc,PointStart, PointEnd);

			m_bFirst = false;
			RectArc.SetRect(cp.x0-r,cp.y0-r,cp.x0+r,cp.y0+r);
			PointEnd=dp;
			Draw(RectArc,PointStart,PointEnd);
		}
		break;
	}
	return 1;
}

void CItemArc::Draw(CRect8 rect, CPoint2D ptStart, CPoint2D ptEnd)
{
	CRect rt=GetDC()->GetScreen(rect);
	CPoint ps=GetDC()->GetScreen(ptStart.x0,ptStart.y0);
	CPoint pe=GetDC()->GetScreen(ptEnd.x0,ptEnd.y0);
	CDC* pDCMem = GetDC()->GetDC();
	int od= pDCMem->SetROP2(R2_NOTXORPEN);
	//BOOL bCtrl = ::IsKeyDown(VK_CONTROL);
	if (m_bDrawCtrl)
	{
		switch (m_state)
		{
		case CArc::drawArc:
			pDCMem->Arc(&rt, pe, ps);
			break;
		case CArc::drawPie:
			pDCMem->Pie(&rt, pe, ps);
			break;
		case CArc::drawChord:
			pDCMem->Chord(&rt, pe, ps);
			break;
		}
	}
	else
	{
		switch (m_state)
		{
		case CArc::drawArc:
			pDCMem->Arc(&rt, ps, pe);
			break;
		case CArc::drawPie:
			pDCMem->Pie(&rt, ps, pe);
			break;
		case CArc::drawChord:
			pDCMem->Chord(&rt, ps, pe);
			break;
		}
	}
	pDCMem->SetROP2(od);
}

BOOL CItemArc::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
	switch(nChar)
	{
	case VK_CONTROL:
		m_bDrawCtrl=TRUE;
		//if(loop!=2) break;
		//if(!RectArc.IsEmpty())
		//	Draw(RectArc,PointStart,PointEnd);
		//Draw(RectArc,PointStart,PointEnd);
		break;
	default:
		break;
	}
	return CItem::OnKeyDown(nChar, nRepCnt, nFlags);
}

BOOL CItemArc::OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags)
{
	switch(nChar)
	{
	case VK_CONTROL:
		m_bDrawCtrl=FALSE;
		//if(loop!=2) break;
		//if(!RectArc.IsEmpty())
		//	Draw(RectArc,PointEnd, PointStart);
		//Draw(RectArc,PointStart,PointEnd);
		break;
	case VK_ESCAPE:
		// ÎÞÐë´¦Àí
		return TRUE;
	default:
		break;
	}
	return CItem::OnKeyUp(nChar, nRepCnt, nFlags);
}

BOOL CItemArc::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
	return TRUE;
	//GetDoc()->GetCursor().SetCursor(CursorRange);
	//return GetDoc()->GetCursor().SetCursor();
}

void CItemArc::SetState(int state)
{
	m_state=state;
}

CArc* CItemArc::CreateArc(void)
{
	double r;
	CPoint2D cp;
	if(!AfxGetPublicFunction()->GetCircumcenter(cp.x0,cp.y0,r,PointStart.x0,PointStart.y0,PointMiddle.x0,PointMiddle.y0,PointEnd.x0,PointEnd.y0) )
		return NULL;
	CArc* pArc=new CArc();
	pArc->SetType(m_state);
	if(m_bDrawCtrl)
		pArc->SetParameter(cp, PointEnd, PointStart);
	else
		pArc->SetParameter(cp, PointStart, PointEnd);
	pArc->GetCurve(3.0);
	return pArc;
}

BOOL CItemArc::DoSelectEnd(void)
{
	CArc* pArc=CreateArc();
	if(pArc==NULL) return FALSE;
	POSITION pos=AddElement(pArc,DOUBLEFOX_ARC);
	//GetDoc()->Select(pos);
	return TRUE;
}

int CItemArc::GetState(void)
{
	return m_state;
}

/*
BOOL CItemArc::InitPropertyGrid(CXTPPropertyGrid& grid)
{
	if(!this->IsEditState()) return FALSE;

	CPropertyGridItemAdd ItemAdd(NULL);

	CXTPPropertyGridItem* pItem=grid.AddCategory(IDS_STRING_ARC); ItemAdd.SetItem(pItem); pItem->Expand();

	CString strFormat=GetFloatFormatString();
	CArc* pArc=(CArc*)GetDoc()->GetDraw()->GetAtValue(GetPos());

	m_point.SetPoint(pArc->x0,pArc->y0);
	ItemAdd.AddItemPoint(IDS_GI_CIRCLE_COOR,	m_point,		&m_point);

	m_size = GetUnitMode().toPrintUnit(pArc->m_size);
	ItemAdd.AddItemUnitSize8(IDS_GI_CIRCLE_RADIUS, GetUnit(), m_size, &m_size, IDS_GI_CIRCLE_WIDTH, IDS_GI_CIRCLE_HEIGHT);

	ItemAdd.AddItemDouble(IDS_GI_ARC_BEGIN,		pArc->arc1,		strFormat,	NULL);
	ItemAdd.AddItemDouble(IDS_GI_ARC_END,		pArc->arc2,		strFormat,	NULL);

	switch(pArc->GetType())
	{
	case CArc::drawArc:	  m_nDrawType=0; break;
	case CArc::drawChord: m_nDrawType=1; break;
	case CArc::drawPie:	  m_nDrawType=2; break;
	}
	ItemAdd.AddItemCombo(IDS_STRING_TYPE, IDS_GI_ARC_TYPE, m_nDrawType,	&m_nDrawType);

	m_dCurveWidth = GetUnitMode().toPrintUnit(pArc->m_dCurveWidth);
	ItemAdd.AddItemUnitDouble(IDS_STRING_CURVE_WIDTH, GetUnit(), m_dCurveWidth, strFormat, &m_dCurveWidth);

	CItem::InitPropertyGrid(grid);
	return TRUE;
}

BOOL CItemArc::OnGridItemChangeValue(CXTPPropertyGridItem* pItem)
{
	if(!this->IsEditState()) return FALSE;
	CArc* pArc=(CArc*)GetDoc()->GetDraw()->GetAtValue(GetPos());

	BOOL bUpdate=FALSE;
	switch(pItem->GetID())
	{
	case 0:
		break;
	case IDS_STRING_CURVE_WIDTH:
		pArc->m_dCurveWidth = GetUnitMode().toRealUnit(m_dCurveWidth);
		bUpdate=TRUE;
		break;
	case IDS_GI_CIRCLE_RADIUS:
		pArc->m_size = GetUnitMode().toRealUnit(m_size);
		bUpdate=TRUE;
		break;
	case IDS_GI_ARC_BEGIN:
		pArc->arc1=((CXTPPropertyGridItemDouble*)pItem)->GetDouble();
		bUpdate=TRUE;
		break;
	case IDS_GI_ARC_END:
		pArc->arc2=((CXTPPropertyGridItemDouble*)pItem)->GetDouble();
		bUpdate=TRUE;
		break;
	case IDS_STRING_TYPE:
		switch(m_nDrawType)
		{
		case 0: pArc->SetType(CArc::drawArc);	break;
		case 1: pArc->SetType(CArc::drawChord);	break;
		case 2: pArc->SetType(CArc::drawPie);	break;
		}
		bUpdate=TRUE;
		break;
	case IDS_GI_CIRCLE_COOR:
		pArc->x0=m_point.x0;
		pArc->y0=m_point.y0;
		bUpdate=TRUE;
		break;
	}
	if(bUpdate)
		pArc->GetCurve(pArc->step);

	return bUpdate | CItem::OnGridItemChangeValue(pItem);
}
*/