#include "stdafx.h"
#include "TParallelDimJig.h"


CTParallelDimJig::~CTParallelDimJig(void)
{
}

CTParallelDimJig::CTParallelDimJig(TDbDimension2 *pDim, const TADSGePointList& lstPts)
{
	m_pDim = pDim;
	m_bFlag = 1;
	m_bAppend = FALSE;
	m_lstPts.copyFrom(lstPts);
	int nLen = m_lstPts.Length();
	for(int n = 0; n < nLen; n++) 
	{
		m_pDim->AddSegment(*m_lstPts[n]);
	}
	m_pDim->SetFixLinePos(*m_lstPts[0]);
}

AcEdJig::DragStatus CTParallelDimJig::doIt()
{
	setDispPrompt(_T("\n请点取尺寸线位置<退出>:"));
	DragStatus stat = drag();
	return stat;
}

AcEdJig::DragStatus CTParallelDimJig::sampler()
{
	setUserInputControls((UserInputControls)
		(AcEdJig::kAccept3dCoordinates | AcEdJig::kNullResponseAccepted));

	XPoint ptCursor;
	DragStatus stat = acquirePoint(ptCursor);
	if(stat == AcEdJig::kNormal) 
	{
		if (ptCursor.Distance2d(m_ptDim) > _DIST_SNAP)
			m_ptDim = ptCursor;
		else 
			stat = AcEdJig::kNoChange;
	}
	return stat;
}

Adesk::Boolean CTParallelDimJig::update()
{
	int nLen = 0, n = 0;	
	if (m_bAppend)
	{
		m_bAppend = FALSE;
		int ncount = m_pDim->GetSegmentNum();
		while(m_pDim->GetSegmentNum() > 0)
			m_pDim->RemoveSegment(0);

		m_pDim->SetLocation(*m_lstPts[0]);

		nLen = m_lstPts.Length();
		for(n = 0; n < nLen; n++) 
		{
			m_pDim->AddSegment(*m_lstPts[n]);
		}
		TADSGePoint3d ptEnd=*m_lstPts[m_lstPts.Length()-1],ptStart=*m_lstPts[0];
		XVector3D vt=ptEnd-ptStart;
		m_pDim->getStartPoint(ptStart);
		m_pDim->getEndPoint(ptEnd);

	}

	XPoint ptOnSeg;
	TGGeCurveSegment seg;
	seg = m_pDim->GetDimCurve();
	if(seg.ProjectToMe(m_ptDim, ptOnSeg) == RTNORM) 
	{
		double nDistMove = ptOnSeg.Distance2d(m_ptDim);
		int nSideLoc = seg.OnWhichSide(m_pDim->GetLocation());
		int nSide = seg.OnWhichSide(m_ptDim);
		double nDist2Dim = m_pDim->GetDist2DimLine(FALSE);
		double nFactor = nDist2Dim/fabs(nDist2Dim);
		if(fabs(nDist2Dim) > 1.0E-6) 
		{
			if(nSide != nSideLoc) 
			{
				nDistMove *= nFactor;
			}
			else
			{
				nDistMove *= -nFactor;
			}
		} 
		else 
		{
			if(nSideLoc == OFFSET_LEFT) 
				nDistMove *= -1;
		}
		nDist2Dim += nDistMove;
		m_pDim->SetDist2DimLine(nDist2Dim, FALSE);
		double ddis = m_pDim->GetPScale() * 8;
		if(nDist2Dim >= 0)
			nDist2Dim += ddis;
		else 
			nDist2Dim -= ddis;

	}
	return Adesk::kTrue;
}

AcDbEntity* CTParallelDimJig::entity() const
{
	return (AcDbEntity*)m_pDim;
}