#include "StdAfx.h"
#include "BlkRecsPreviewCtrlEx.h"
#include "GsPreviewCtrlEx.h"
#include "math.h"
#include "dbobjptr.h"
#include "EarThwormDef.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

int CBlkRecsPreviewCtrlEx::s_nSpace = 16;
#define WM_VIEWDBLCLKSEL (WM_USER + 0x1200)
#define WM_TRUERELOAD (WM_USER + 0x1201)
#define WM_ONITEMSEL (WM_USER + 0x1202)

static AcGePoint3d Mid(AcGePoint3d& ptGe1,AcGePoint3d& ptGe2)
{
	return AcGePoint3d( (ptGe1.x + ptGe2.x) / 2.0,
						(ptGe1.y + ptGe2.y) / 2.0,
						(ptGe1.z + ptGe2.z) / 2.0);
}

CBlkRecsPreviewCtrlEx::CBlkRecsPreviewCtrlEx()
{
	m_nRows = 1;
	m_nCols = 1;
	m_nCurSel = -1;
	m_bInit = FALSE;
	m_hRes = NULL;
	m_bLfFont = FALSE;
}

CBlkRecsPreviewCtrlEx::~CBlkRecsPreviewCtrlEx()
{
	Clear();
}

BEGIN_MESSAGE_MAP(CBlkRecsPreviewCtrlEx, CWnd)
	ON_WM_PAINT()
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_LBUTTONDBLCLK()
	ON_WM_ERASEBKGND()
	ON_WM_SIZE()
	ON_WM_DESTROY()
	ON_WM_VSCROLL()
END_MESSAGE_MAP()

#define ID_PREVIEWCTRL 401

void CBlkRecsPreviewCtrlEx::SetLogFont(LOGFONT* plf)
{
	if (plf != NULL)
	{
		memcpy(&m_lfFont,plf,sizeof(LOGFONT));
		m_bLfFont = TRUE;
	}
}

BOOL CBlkRecsPreviewCtrlEx::Init(HMODULE hRes,int nRows,int nCols,int nCount,AcDbDatabase* pDb,bool b3D/* = true*/)
{
	m_hRes = hRes;
	if (nRows * nCols <= 0) return FALSE;

	DestroyAll();
	
	m_bInit = TRUE;
	m_nRows = nRows;
	m_nCols = nCols;
	CRect rcClient;
	AcGsDCRect dcRc;

	GetClientRect(&rcClient);
	rcClient.DeflateRect(s_nSpace,s_nSpace,s_nSpace,s_nSpace);

	CRect rc(0,0,0,0);
	GetClientRect(&rc);

	CArray<CRect,CRect> arCells;
	DrawGridCell(NULL,arCells);
	rc = arCells.GetAt(0);

	if (nCount > 0)
	{
		// 根据nCount创建viewCtrl
		DWORD dwStyle = WS_CHILD | WS_VISIBLE;
		CGsPreviewCtrlEx* pPreViewCtrl = NULL;
		for (int i = 0;i < nCount;i++)
		{
			pPreViewCtrl = new CGsPreviewCtrlEx;
			pPreViewCtrl->Create(_T("PreView"),dwStyle,rc,this,ID_PREVIEWCTRL + i);
			m_nIDAdd = i;
			InitDrawingControl(pPreViewCtrl,pDb,ACDB_MODEL_SPACE,b3D);

#ifndef ZWCAD
#if ARX <= 19
			pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
#else
			AcGiVisualStyle style;
			style.setType(AcGiVisualStyle::kGouraudWithEdges);
			pPreViewCtrl->mpView->setVisualStyle(style);
#endif
#else
		#if defined(R24)
			pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
		#else
			AcGiVisualStyle style;
			style.setType(AcGiVisualStyle::kGouraudWithEdges);
			pPreViewCtrl->mpView->setVisualStyle(style);
		#endif
#endif

			m_arPreViewCtrls.Add(pPreViewCtrl);
		}
		
		int nShows = m_nRows * m_nCols;
		if (nCount - nShows > 0)
		{
			int nRes = (nCount % nShows) ? 1 : 0;
			int nPages = nCount / nShows + nRes;
			SetScrollRange(SB_VERT,0,nPages - 1);
		}
		else
		{
			ShowScrollBar(SB_VERT,FALSE);
		}
	}

	m_bInit = FALSE;
	return TRUE;
}

BOOL CBlkRecsPreviewCtrlEx::Add(AcDbEntity* pEnt,int nIndex,AcDbExtents* pExtAll)
{
	if (nIndex > -1 && nIndex < m_arPreViewCtrls.GetSize())
	{
		CGsPreviewCtrlEx* pPreViewCtrl = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(nIndex);
		if ( pPreViewCtrl != NULL)
		{
			pPreViewCtrl->mpView->add(pEnt, pPreViewCtrl->model());
			
			AcDbPoint* pPt = AcDbPoint::cast(pEnt);
			if (pPt != NULL)
			{
				m_mapViewCtrl2Pt.SetAt(pPreViewCtrl,1);
			}
			else
			{
				m_mapViewCtrl2Pt.SetAt(pPreViewCtrl,0);
			}
			pPreViewCtrl->RefreshView();
		}
		m_nCurSel = 0;
		return TRUE;
	}
	return FALSE;
}

BOOL CBlkRecsPreviewCtrlEx::Add(AcDbEntity* pEnt,int nIndex,LPCTSTR pszName,AcDbExtents* pExtAll)
{
	if (nIndex > -1 && nIndex < m_arPreViewCtrls.GetSize())
	{
		CGsPreviewCtrlEx* pPreViewCtrl = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(nIndex);
		if ( pPreViewCtrl != NULL)
		{
			bool bSuccess = pPreViewCtrl->mpView->add(pEnt, pPreViewCtrl->model());
			pPreViewCtrl->RefreshView();

			AcDbPoint* pPt = AcDbPoint::cast(pEnt);
			if (pPt != NULL)
			{
				m_mapViewCtrl2Pt.SetAt(pPreViewCtrl,1);
			}
			else
			{
				m_mapViewCtrl2Pt.SetAt(pPreViewCtrl,0);
			}

			CString sKey;
			sKey.Format(_T("%p"),pPreViewCtrl);
			m_mapEntPtr2Name.SetAt(sKey,pszName);
		}
		m_nCurSel = 0;
		return TRUE;
	}
	return FALSE;
}

BOOL CBlkRecsPreviewCtrlEx::Add(LPCTSTR pszDwgFile,LPCTSTR pszName)
{
	Acad::ErrorStatus es;
	AcDbDatabase *pDb = NULL;
	bool bNewDb = false;
	if ( !m_mapDwgFile2Db.Lookup(pszDwgFile,(void*&)pDb) )
	{
		bNewDb = true;
		pDb = new AcDbDatabase(false);
		es = pDb->readDwgFile(pszDwgFile);
		if (es != Acad::eOk)
		{
			AfxMessageBox(CString(_T("读取文件失败 \"")) + pszDwgFile + _T("\""));
			DELETE_PTR(pDb);
			return FALSE;
		}
	}

	// 根据nCount创建viewCtrl
	DWORD dwStyle = WS_CHILD | WS_VISIBLE;
	CGsPreviewCtrlEx* pPreViewCtrl = NULL;

	CRect rc;
	GetClientRect(rc);

	m_nIDAdd += 1;
	pPreViewCtrl = new CGsPreviewCtrlEx;
	pPreViewCtrl->Create(_T("PreView"),dwStyle,rc,this,ID_PREVIEWCTRL + m_nIDAdd);
	InitDrawingControl(pPreViewCtrl,pDb,pszName);

#ifndef ZWCAD
#if ARX <= 19
	pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
#else
	AcGiVisualStyle style;
	style.setType(AcGiVisualStyle::kGouraudWithEdges);
	pPreViewCtrl->mpView->setVisualStyle(style);
#endif
#else
#if defined(R24)
	pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
#else
	AcGiVisualStyle style;
	style.setType(AcGiVisualStyle::kGouraudWithEdges);
	pPreViewCtrl->mpView->setVisualStyle(style);
#endif
#endif

	m_arRecNames.Add(pszName);
	m_arDwgFiles.Add(pszDwgFile);

	if (!bNewDb)
	{
		m_arDbPtrs.Add(pDb);
		m_mapDwgFile2Db.SetAt(pszDwgFile,pDb);
	}

	m_arPreViewCtrls.Add(pPreViewCtrl);

	int nCount = (int)m_arPreViewCtrls.GetSize();
	int nShows = m_nRows * m_nCols;
	if (nCount - nShows > 0)
	{
		int nRes = (nCount % nShows) ? 1 : 0;
		int nPages = nCount / nShows + nRes;
		SetScrollRange(SB_VERT,0,nPages - 1);
	}
	else
	{
		ShowScrollBar(SB_VERT,FALSE);
	}
	return TRUE;
}

BOOL CBlkRecsPreviewCtrlEx::Add(AcDbDatabase* pDb,LPCTSTR pszName)
{
	// 根据nCount创建viewCtrl
	DWORD dwStyle = WS_CHILD | WS_VISIBLE;
	CGsPreviewCtrlEx* pPreViewCtrl = NULL;

	CRect rc;
	GetClientRect(rc);

	m_nIDAdd += 1;
	pPreViewCtrl = new CGsPreviewCtrlEx;
	pPreViewCtrl->Create(_T("PreView"),dwStyle,rc,this,ID_PREVIEWCTRL + m_nIDAdd);
	InitDrawingControl(pPreViewCtrl,pDb,pszName);

#ifndef ZWCAD
#if ARX <= 19
	pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
#else
	AcGiVisualStyle style;
	style.setType(AcGiVisualStyle::kGouraudWithEdges);
	pPreViewCtrl->mpView->setVisualStyle(style);
#endif
#else
#if defined(R24)
	pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
#else
	AcGiVisualStyle style;
	style.setType(AcGiVisualStyle::kGouraudWithEdges);
	pPreViewCtrl->mpView->setVisualStyle(style);
#endif
#endif

	m_arRecNames.Add(pszName);
	m_arDwgFiles.Add(pszName);//??
	m_arDbPtrs.Add(pDb);
	m_mapDwgFile2Db.SetAt(pszName,pDb);
	m_arPreViewCtrls.Add(pPreViewCtrl);

	int nCount = (int)m_arPreViewCtrls.GetSize();
	int nShows = m_nRows * m_nCols;
	if (nCount - nShows > 0)
	{
		int nRes = (nCount % nShows) ? 1 : 0;
		int nPages = nCount / nShows + nRes;
		SetScrollRange(SB_VERT,0,nPages - 1);
	}
	else
	{
		ShowScrollBar(SB_VERT,FALSE);
	}
	return TRUE;
}

BOOL CBlkRecsPreviewCtrlEx::Add(LPCTSTR pszDwgFile,LPCTSTR pszShowRc,LPCTSTR pszName,bool bIs3D/* = true*/)
{
	Acad::ErrorStatus es;
	AcDbDatabase *pDb = NULL;
	bool bNewDb = false;
	if ( !m_mapDwgFile2Db.Lookup(pszDwgFile,(void*&)pDb) )
	{
		bNewDb = true;
		pDb = new AcDbDatabase(false);
		es = pDb->readDwgFile(pszDwgFile);
		if (es != Acad::eOk)
		{
			AfxMessageBox(CString(_T("读取文件失败 \"")) + pszDwgFile + _T("\""));
			DELETE_PTR(pDb);
			return FALSE;
		}
	}

	// 根据nCount创建viewCtrl
	DWORD dwStyle = WS_CHILD | WS_VISIBLE;
	CGsPreviewCtrlEx* pPreViewCtrl = NULL;

	CRect rc;
	GetClientRect(rc);

	m_nIDAdd += 1;
	pPreViewCtrl = new CGsPreviewCtrlEx;
	pPreViewCtrl->Create(_T("PreView"),dwStyle,rc,this,ID_PREVIEWCTRL + m_nIDAdd);
	InitDrawingControl(pPreViewCtrl,pDb,pszShowRc,bIs3D);

#ifndef ZWCAD
#if ARX <= 19
	pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
#else
	AcGiVisualStyle style;
	style.setType(AcGiVisualStyle::kGouraud);
	pPreViewCtrl->mpView->setVisualStyle(style);
#endif
#else
#if defined(R24)
	pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
#else
	AcGiVisualStyle style;
	style.setType(AcGiVisualStyle::kGouraud);
	pPreViewCtrl->mpView->setVisualStyle(style);
#endif
#endif

	m_arRecNames.Add(pszName);
	m_arDwgFiles.Add(pszDwgFile);

	if (!bNewDb)
	{
		m_arDbPtrs.Add(pDb);
		m_mapDwgFile2Db.SetAt(pszDwgFile,pDb);
	}	
	m_arPreViewCtrls.Add(pPreViewCtrl);

	int nCount = (int)m_arPreViewCtrls.GetSize();
	int nShows = m_nRows * m_nCols;
	if (nCount - nShows > 0)
	{
		int nRes = (nCount % nShows) ? 1 : 0;
		int nPages = nCount / nShows + nRes;
		SetScrollRange(SB_VERT,0,nPages - 1);
	}
	else
	{
		ShowScrollBar(SB_VERT,FALSE);
	}
	return TRUE;
}

BOOL CBlkRecsPreviewCtrlEx::PreviewWinDoor(LPCTSTR pszDwgFile,LPCTSTR pszShowRc,LPCTSTR pszName,bool bIsDoor,bool bIs3D/* = true*/)
{
	Acad::ErrorStatus es;
	AcDbDatabase *pDb = NULL;
	bool bNewDb = false;
	if ( !m_mapDwgFile2Db.Lookup(pszDwgFile,(void*&)pDb) )
	{
		bNewDb = true;
		pDb = new AcDbDatabase(false);
		es = pDb->readDwgFile(pszDwgFile);
		if (es != Acad::eOk)
		{
			AfxMessageBox(CString(_T("读取文件失败 \"")) + pszDwgFile + _T("\""));
			DELETE_PTR(pDb);
			return FALSE;
		}
	}

	// 根据nCount创建viewCtrl
	DWORD dwStyle = WS_CHILD | WS_VISIBLE;
	CGsPreviewCtrlEx* pPreViewCtrl = NULL;

	CRect rc;
	GetClientRect(rc);

	m_nIDAdd += 1;
	pPreViewCtrl = new CGsPreviewCtrlEx;
	pPreViewCtrl->Create(_T("PreView"),dwStyle,rc,this,ID_PREVIEWCTRL + m_nIDAdd);
	if (Acad::eOk != InitDrawingControlWinDoor(pPreViewCtrl, pDb, pszName, bIsDoor, bIs3D))
	{
		return FALSE;
	}

#ifndef ZWCAD
#if ARX <= 19
	pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
#else
	AcGiVisualStyle style;
	style.setType(AcGiVisualStyle::kGouraud);
	pPreViewCtrl->mpView->setVisualStyle(style);
#endif
#else
#if defined(R24)
	pPreViewCtrl->mpView->setMode(AcGsView::kGouraudShaded);
#else
	AcGiVisualStyle style;
	style.setType(AcGiVisualStyle::kGouraud);
	pPreViewCtrl->mpView->setVisualStyle(style);
#endif
#endif

	m_arRecNames.Add(pszName);
	m_arDwgFiles.Add(pszDwgFile);

	if (bNewDb)
	{
		m_arDbPtrs.Add(pDb);
		m_mapDwgFile2Db.SetAt(pszDwgFile,pDb);
	}	
	m_arPreViewCtrls.Add(pPreViewCtrl);

	int nCount = (int)m_arPreViewCtrls.GetSize();
	int nShows = m_nRows * m_nCols;
	if (nCount - nShows > 0)
	{
		int nRes = (nCount % nShows) ? 1 : 0;
		int nPages = nCount / nShows + nRes;
		SetScrollRange(SB_VERT,0,nPages - 1);
	}
	else
	{
		ShowScrollBar(SB_VERT,FALSE);
	}
	return TRUE;
}

Acad::ErrorStatus CBlkRecsPreviewCtrlEx::InitDrawingControlWinDoor(CGsPreviewCtrlEx* pPreViewCtrl,AcDbDatabase *pDb, LPCTSTR space,bool bIsDoor,bool b3D/* = true*/)
{
	// have we got a valid drawing
	if (pDb == NULL)
	{
		pDb = acdbCurDwg();
	}

	AcDbBlockTableRecordPointer spaceRec(space, pDb, AcDb::kForRead);
	// if ok
	if (spaceRec.openStatus() == Acad::eOk)
	{
		// initialize the preview control
		pPreViewCtrl->init(m_hRes,true);
		// set the view to the *Active* AutoCAD view
		AcGeMatrix3d xform;
		SetViewTo(pPreViewCtrl->mpView, pDb, xform,b3D);
		// tell the view to display this space

		//不显示当前模型空间记录的现有实体?
		//pPreViewCtrl->view()->add(spaceRec.object(), pPreViewCtrl->model()); 

		AcDbBlockReference *pRef = new AcDbBlockReference();
		pRef->setBlockTableRecord(spaceRec->objectId());
		pRef->setPosition(AcGePoint3d::kOrigin);
		pRef->setRotation(0.0);

		AcGeScale3d scale(500,500,500);
		if (!bIsDoor)
			scale.set(500,240,500);
		pRef->setScaleFactors(scale);
		pRef->setColorIndex(4);
		pPreViewCtrl->view()->add(pRef, pPreViewCtrl->model()); 

		AcGePoint3d ptS,ptE;

		//绘制两侧墙体
		AcDbLine* pLn = new AcDbLine;
		ptS.set(-550,120,0);
		ptE.set(-250,120,0);
		pLn->setStartPoint(ptS);pLn->setEndPoint(ptE);
		pLn->setColorIndex(9);
		pPreViewCtrl->view()->add(pLn, pPreViewCtrl->model()); 

		pLn = new AcDbLine;
		ptS.set(-250,120,0);
		ptE.set(-250,-120,0);
		pLn->setStartPoint(ptS);pLn->setEndPoint(ptE);
		pLn->setColorIndex(9);
		pPreViewCtrl->view()->add(pLn, pPreViewCtrl->model()); 

		pLn = new AcDbLine;
		ptS.set(-250,-120,0);
		ptE.set(-550,-120,0);
		pLn->setStartPoint(ptS);pLn->setEndPoint(ptE);
		pLn->setColorIndex(9);
		pPreViewCtrl->view()->add(pLn, pPreViewCtrl->model()); 

		//R
		pLn = new AcDbLine;
		ptS.set(550,120,0);
		ptE.set(250,120,0);
		pLn->setStartPoint(ptS);pLn->setEndPoint(ptE);
		pLn->setColorIndex(9);
		pPreViewCtrl->view()->add(pLn, pPreViewCtrl->model()); 

		pLn = new AcDbLine;
		ptS.set(250,120,0);
		ptE.set(250,-120,0);
		pLn->setStartPoint(ptS);pLn->setEndPoint(ptE);
		pLn->setColorIndex(9);
		pPreViewCtrl->view()->add(pLn, pPreViewCtrl->model()); 

		pLn = new AcDbLine;
		ptS.set(250,-120,0);
		ptE.set(550,-120,0);
		pLn->setStartPoint(ptS);pLn->setEndPoint(ptE);
		pLn->setColorIndex(9);
		pPreViewCtrl->view()->add(pLn, pPreViewCtrl->model()); 
	}
	return spaceRec.openStatus();
}

Acad::ErrorStatus CBlkRecsPreviewCtrlEx::InitDrawingControl (CGsPreviewCtrlEx* pPreViewCtrl,AcDbDatabase *pDb, const TCHAR *space,bool b3D/* = true*/)
{
	// have we got a valid drawing
	if (pDb == NULL)
	{
		pDb = acdbCurDwg();
	}

	AcDbBlockTableRecordPointer spaceRec(space, pDb, AcDb::kForRead);
	// if ok
	if (spaceRec.openStatus() == Acad::eOk)
	{
		// initialize the preview control
		pPreViewCtrl->init(m_hRes,true);
		// set the view to the *Active* AutoCAD view
		AcGeMatrix3d xform;
		SetViewTo(pPreViewCtrl->mpView, pDb, xform,b3D);
		// tell the view to display this space

		//不显示当前模型空间记录的现有实体?
		pPreViewCtrl->view()->add(spaceRec.object(), pPreViewCtrl->model()); 
	}
	return spaceRec.openStatus();
}

void CBlkRecsPreviewCtrlEx::SetViewTo(AcGsView *pView, AcDbDatabase *pDb, AcGeMatrix3d& viewMat,bool b3D)
{
	// we are going to set the view to the current view of the drawing
	// The overall approach is to calculate the extents of the database in the coordinate system of the view
	// Calculate the extents in WCS
	// if exmax,exmin too larg or small , view show error!!!!
	AcGePoint3d extMax(500,500,500);// = pDb->extmax();
	AcGePoint3d extMin(-500,-500,-500);// = pDb->extmin();

	// get the view port information - see parameter list
	ads_real height = 0.0, width = 0.0, viewTwist = 0.0;
	AcGePoint3d targetView;
	AcGeVector3d viewDir;
	GetActiveViewPortInfo (pDb,height, width, targetView, viewDir, viewTwist, true);

	// we are only interested in the directions of the view, not the sizes, so we normalise. 
	// set to -1,-1,1
	if (b3D)
	{
		viewDir.set(-1,-1,1);
	}
	viewDir = viewDir.normal();

	//**********************************************
	// Our view coordinate space consists of z direction 
	// get a perp vector off the z direction
	// Make sure its normalised
	AcGeVector3d viewXDir = viewDir.perpVector ().normal();
	// correct the x angle by applying the twist
	viewXDir = viewXDir.rotateBy (viewTwist, -viewDir);
	// now we can work out y, this is of course perp to the x and z directions. No need to normalise this, 
	// as we know that x and z are of unit length, and perpendicular, so their cross product must be on unit length
	AcGeVector3d viewYDir = viewDir.crossProduct (viewXDir);

	// find a nice point around which to transform the view. We'll use the same point as the center of the view.
	AcGePoint3d boxCenter = extMin + 0.5 * ( extMax - extMin );

	//**********************************************
	// create a transform from WCS to View space
	// this represents the transformation from WCS to the view space. (Actually not quite since 
	// we are keeping the fixed point as the center of the box for convenience )
	viewMat = AcGeMatrix3d::alignCoordSys (boxCenter, AcGeVector3d::kXAxis, AcGeVector3d::kYAxis, AcGeVector3d::kZAxis,  
		boxCenter, viewXDir, viewYDir, viewDir).inverse();

	AcDbExtents wcsExtents(extMin, extMax);
	// now we have the view Extents
	AcDbExtents viewExtents = wcsExtents;
	// transforms the extents in WCS->view space
	viewExtents.transformBy (viewMat);

	//**********************************************
	// get the extents of the AutoCAD view
	double xMax = fabs(viewExtents.maxPoint ().x - viewExtents.minPoint ().x);
	double yMax = fabs(viewExtents.maxPoint ().y - viewExtents.minPoint ().y);

	//**********************************************
	// setup the view
	AcGePoint3d eye = boxCenter + viewDir;

	// upvector				
	pView->setView(eye, boxCenter, viewYDir, xMax, yMax);
	// update the gsView
	if (pView != NULL)
	{
		pView->invalidate();
		pView->update();
	}
}

void CBlkRecsPreviewCtrlEx::RefreshView(AcGsView *pView)
{
	if (pView != NULL)
	{
		pView->invalidate();
		//pView->update();
	}
}

bool CBlkRecsPreviewCtrlEx::GetActiveViewPortInfo (AcDbDatabase *pDb, ads_real &height, ads_real &width, AcGePoint3d &target, AcGeVector3d &viewDir, ads_real &viewTwist, bool getViewCenter)
{
  // if not ok
  if (pDb == NULL)
    return false;

  // get the current working database as a backup
  AcDbDatabase *workingDataBase = acdbHostApplicationServices()->workingDatabase();

  //将导致渲染错误，文件保存，核查错误提示 LFY 2019-6-3
  // now set the working database
 // acdbHostApplicationServices()->setWorkingDatabase(pDb);

  // make sure the active view port is uptodate
  acedVports2VportTableRecords();

  // open the view port records
  AcDbViewportTable *pVTable = NULL;
  Acad::ErrorStatus es = pDb->getViewportTable (pVTable, AcDb::kForRead);
  // if we opened them ok
  if (es == Acad::eOk)
  {
    AcDbViewportTableRecord *pViewPortRec = NULL;
    es = pVTable->getAt (_T("*Active"), pViewPortRec, AcDb::kForRead);
    if (es == Acad::eOk)
    {
      // get the height of the view
      height = pViewPortRec->height ();
      // get the width
      width = pViewPortRec->width ();
      // if the user wants the center of the viewport used
      if (getViewCenter == true)
      {
        struct resbuf rb;
        memset (&rb, 0, sizeof (struct resbuf));
        // get the system var VIEWCTR
        acedGetVar (_T("VIEWCTR"), &rb);
        // set that as the target
        target = AcGePoint3d (rb.resval.rpoint[X], rb.resval.rpoint[Y], rb.resval.rpoint[Z]);
      }
      // we want the viewports camera target setting
      else
      {
        // get the target of the view
        target = pViewPortRec->target ();
      }		

      // get the view direction
      viewDir = pViewPortRec->viewDirection ();
      // get the view twist of the viewport
      viewTwist = pViewPortRec->viewTwist ();
    }
    // close after use
    pVTable->close ();
    pViewPortRec->close();			
  }	

  // now restore the original working database
  //将导致渲染错误，文件保存，核查错误提示 LFY 2019-6-3
  //acdbHostApplicationServices()->setWorkingDatabase(workingDataBase);

  return (true);
}

void CBlkRecsPreviewCtrlEx::Redraw(AcDbExtents* pExtAll,int nGsViewIndex)
{
	if (pExtAll != NULL && nGsViewIndex != -1)
	{
		ZoomExtent(nGsViewIndex,pExtAll);
	}

	if (::IsWindow(m_hWnd))
	{
		Invalidate();
	}
}

BOOL CBlkRecsPreviewCtrlEx::PreViewNamedRecs(LPCTSTR pszDwgFile,LPCTSTR pszHead)
{
	AcDbDatabase * pDb = new AcDbDatabase(false);
	if (Acad::eOk == pDb->readDwgFile(pszDwgFile))
	{
		m_arDbPtrs.Add(pDb);
		m_arRecNames.Add(pszHead);
		m_arDwgFiles.Add(pszDwgFile);

		// 根据nCount创建viewCtrl
		DWORD dwStyle = WS_CHILD | WS_VISIBLE;
		CGsPreviewCtrlEx* pPreViewCtrl = NULL;

		CRect rc;
		GetClientRect(rc);

		m_nIDAdd += 1;
		pPreViewCtrl = new CGsPreviewCtrlEx;
		pPreViewCtrl->Create(_T("PreView"),dwStyle,rc,this,ID_PREVIEWCTRL + m_nIDAdd);
		InitDrawingControl(pPreViewCtrl,pDb,pszHead);

		m_arPreViewCtrls.Add(pPreViewCtrl);

		//scrbar
		int nCount = (int)m_arPreViewCtrls.GetSize();
		int nShows = m_nRows * m_nCols;
		if (nCount - nShows > 0)
		{
			int nRes = (nCount % nShows) ? 1 : 0;
			int nPages = nCount / nShows + nRes;
			SetScrollRange(SB_VERT,0,nPages);

			SCROLLINFO info;
			info.cbSize = sizeof(SCROLLINFO);
			info.fMask = SIF_ALL;
			info.nMin = 0;
			info.nMax = nPages;
			info.nPage = 2;
			info.nPos = 0;    
			info.nTrackPos = 0; 
			SetScrollInfo(SB_VERT,&info);
			EnableScrollBarCtrl(SB_VERT);
		}
		else
		{
			ShowScrollBar(SB_VERT,FALSE);
		}
		m_nCurSel = 0;
			
		return TRUE;
	}
	else
	{
		DELETE_PTR(pDb);
	}
	return FALSE;
}

BOOL CBlkRecsPreviewCtrlEx::GetCurSelRec(CString& sRecName)
{
	if (m_nCurSel != -1)
	{
		int nTrueSel = m_nCurSel + GetScrollPos(SB_VERT) * (m_nRows * m_nCols);
		if (nTrueSel != -1 ) //view rec
		{
			sRecName = m_arRecNames.GetAt(nTrueSel);
			return TRUE;
		}
	}
	return FALSE;
}

BOOL CBlkRecsPreviewCtrlEx::GetCurSelRec(CString& sDwgFile,CString& sRecName)
{
	if (m_nCurSel != -1)
	{
		int nTrueSel = m_nCurSel + GetScrollPos(SB_VERT) * (m_nRows * m_nCols);
		if (nTrueSel != -1 ) //view rec
		{
			sRecName = m_arRecNames.GetAt(nTrueSel);
			sDwgFile = m_arDwgFiles.GetAt(nTrueSel);
			return TRUE;
		}
	}
	return FALSE;
}

BOOL CBlkRecsPreviewCtrlEx::SetCurSelRec(CString &sDwgFile, CString &sRecName)
{
	CString sRecName2, sDwgFile2;
	//仅仅限于当前页
	int nIndex = -1, nTrueIndex = -1;
	
	for (int i = m_nRows - 1; i > -1; i--)
	{
		for (int j = 0; j < m_nCols; j++)
		{
			nIndex = i * m_nCols + j;
			
			nTrueIndex = nIndex + GetScrollPos(SB_VERT) * (m_nRows * m_nCols);
			if (nTrueIndex < m_arPreViewCtrls.GetSize() - 1)
			{
				sRecName2 = m_arRecNames.GetAt(nTrueIndex);
				sDwgFile2 = m_arDwgFiles.GetAt(nTrueIndex);

				if (sRecName.CompareNoCase(sRecName2) == 0 &&
					sDwgFile.CompareNoCase(sDwgFile2) == 0)
				{
					int nLastSel = m_nCurSel;

					m_nCurSel = nIndex;


					CRect rcLast = GetCellIndexRect(nLastSel);
					CRect rcCurs = GetCellIndexRect(m_nCurSel);

					rcLast.DeflateRect(-2, -2, -2, -2);
					InvalidateRect(rcLast);

					rcCurs.DeflateRect(-2, -2, -2, -2);
					InvalidateRect(rcCurs);

					if (m_nCurSel > -1 && m_nCurSel < m_arPreViewCtrls.GetSize())
					{
						int nTrueIndex = m_nCurSel + GetScrollPos(SB_VERT) * (m_nRows * m_nCols);
						if (nTrueIndex > -1 && nTrueIndex < m_arPreViewCtrls.GetSize())
						{
							GetParent()->SendMessage(WM_ONITEMSEL, nTrueIndex, 0);

							CGsPreviewCtrlEx *pPreViewCtrl = (CGsPreviewCtrlEx *)m_arPreViewCtrls.GetAt(nTrueIndex);
							WORD nFlag = 0;
							if (m_mapViewCtrl2Pt.Lookup(pPreViewCtrl, nFlag))
							{
								if (nFlag == 1)//point default
								{
									GetParent()->SendMessage(WM_TRUERELOAD, nTrueIndex, 0);
								}
							}
						}
					}

					rcCurs.DeflateRect(-2, -2, -2, -2);
					InvalidateRect(rcCurs);

					return TRUE;
				}
			}
		}
	}
	return FALSE;
}

int CBlkRecsPreviewCtrlEx::GetCurSelIndex()
{
	if (m_nCurSel != -1)
	{
		int nTrueSel = m_nCurSel + GetScrollPos(SB_VERT) * (m_nRows * m_nCols);
		if (nTrueSel != -1) //view rec
		{
			return nTrueSel;
		}
	}
	return -1;
}

void CBlkRecsPreviewCtrlEx::Clear(int nIndex)
{
	CGsPreviewCtrlEx* pView = NULL;
	if (nIndex == -1)
	{
		int i = 0;
		for (i = 0;i < m_arPreViewCtrls.GetSize();i++)
		{
			pView = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(i);
			if (pView != NULL)
			{
				pView->mpView->eraseAll();
				pView->DestroyWindow();
				DELETE_PTR(pView);
			}
		}
		m_arPreViewCtrls.RemoveAll();
		m_arRecNames.RemoveAll();

		AcDbDatabase* pDb = NULL;
		for (i = 0;i < m_arDbPtrs.GetSize();i++)
		{
			pDb = (AcDbDatabase*)m_arDbPtrs.GetAt(i);
			if (pDb != NULL)
			{
				DELETE_PTR(pDb);
			}
		}
		m_arDbPtrs.RemoveAll();
		m_mapViewCtrl2Pt.RemoveAll();
	}
	else
	{
		if (nIndex > -1 && nIndex < m_arPreViewCtrls.GetSize())
		{
			pView = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(nIndex);
			if (pView != NULL)
			{
				pView->mpView->eraseAll();
				pView->DestroyWindow();
				DELETE_PTR(pView);
			}
			m_arPreViewCtrls.RemoveAt(nIndex);

			m_mapViewCtrl2Pt.RemoveKey((void*)pView);

			if (nIndex > -1 && nIndex < m_arRecNames.GetSize())
			{
				m_arRecNames.RemoveAt(nIndex);
			}

			AcDbDatabase* pDb = NULL;
			if (nIndex > -1 && nIndex < m_arDbPtrs.GetSize())
			{
				pDb = (AcDbDatabase*)m_arDbPtrs.GetAt(nIndex);
				if (pDb != NULL)
				{
					DELETE_PTR(pDb);
				}
				m_arDbPtrs.RemoveAt(nIndex);
			}
		}
	}
}

void CBlkRecsPreviewCtrlEx::DestroyAll()
{
	CGsPreviewCtrlEx* pView = NULL;
	int i = 0;
	for (i = 0;i < m_arPreViewCtrls.GetSize();i++)
	{
		pView = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(i);
		if (pView != NULL)
		{
			pView->mpView->eraseAll();
			pView->DestroyWindow();
			DELETE_PTR(pView);
		}
	}
	m_arPreViewCtrls.RemoveAll();

	m_arRecNames.RemoveAll();

	AcDbDatabase* pDb = NULL;
	for (i = 0;i < m_arDbPtrs.GetSize();i++)
	{
		pDb = (AcDbDatabase*)m_arDbPtrs.GetAt(i);
		if (pDb != NULL)
		{
			DELETE_PTR(pDb);
		}
	}
	m_arDbPtrs.RemoveAll();
}

void CBlkRecsPreviewCtrlEx::OnPaint() 
{
	CPaintDC dc(this); 

	if (m_bInit) return;

	//获取每页单元位置
	CArray<CRect,CRect> arCells;
	DrawGridCell(&dc,arCells);

	//设置当前可见视的单元位置
	SetShowViewPort(&dc,arCells);

	DrawCurselCell(&dc);
	
	//显示当前可见视
	CGsPreviewCtrlEx* pView = NULL;
	for (int i = 0;i < m_arPreViewCtrls.GetSize();i++)
	{
		pView = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(i);
		if (pView != NULL)
		{
			pView->RefreshView();
		}
	}
}

void CBlkRecsPreviewCtrlEx::DrawCurselCell(CDC* pDC)
{
	int nIndex = -1;
	CRect rc,rcClient;
	GetClientRect(&rcClient);
	rcClient.DeflateRect(s_nSpace,s_nSpace,s_nSpace,s_nSpace);

	int nWidth = (rcClient.Width() - (m_nCols - 1) * s_nSpace ) / m_nCols;
	int nHeight = (rcClient.Height() - (m_nRows - 1) * s_nSpace) / m_nRows;

	int nCurCell = m_nCurSel % (m_nCols * m_nRows);
	for (int i = m_nRows - 1;i > -1;i--)
	{
		for (int j = 0;j < m_nCols;j++)
		{
			nIndex = i * m_nCols + j;
			if (nIndex == nCurCell)
			{
				//超出
				int nTrueSel = m_nCurSel + GetScrollPos(SB_VERT) * (m_nRows * m_nCols);
				if (nTrueSel > m_arPreViewCtrls.GetSize() - 1)
				{
					return;
				}

				rc.top = rcClient.top + i * (nHeight + s_nSpace); 
				rc.bottom = rc.top + nHeight;
				rc.left = rcClient.left + j * (nWidth + s_nSpace); 
				rc.right = rc.left + nWidth;

				CPen pen(PS_SOLID | PS_GEOMETRIC,2,RGB(255,0,0));
				CPoint pt[5];
				rc.DeflateRect(-1,-1,-1,-1);
				pt[0] = rc.TopLeft();
				pt[2] = rc.BottomRight();
				pt[1] = rc.TopLeft();pt[1].x = rc.right;
				pt[3] = rc.BottomRight();pt[3].x = rc.left;
				pt[4] = pt[0];

				CPen * pOldPen = pDC->SelectObject(&pen);
				pDC->MoveTo(pt[0]);
				for (int k = 1;k < 5;k++)
				{
					pDC->LineTo(pt[k]);
				}
				if (pOldPen != NULL) pDC->SelectObject(pOldPen);
				break;
			}
		}
	}
}

void CBlkRecsPreviewCtrlEx::DrawGridCell(CDC* pDC,CArray<CRect,CRect>& arCells)
{
	int nIndex = -1,nTrueIndex = -1;
	CRect rc,rcClient;
	GetClientRect(&rcClient);
	rcClient.DeflateRect(s_nSpace,s_nSpace,s_nSpace,s_nSpace);

	int nWidth = (rcClient.Width() - (m_nCols - 1) * s_nSpace ) / m_nCols;
	int nHeight = (rcClient.Height() - (m_nRows - 1) * s_nSpace) / m_nRows;
	COLORREF crOld = RGB(0,0,0);
	if (pDC != NULL)
	{
		crOld = pDC->GetBkColor();
	}
	int nPos = GetScrollPos(SB_VERT);
	
	for (int i = 0;i < m_nRows;i++)
	{
		for (int j = 0;j < m_nCols;j++)
		{
			nIndex = i * m_nCols + j;
			
			rc.top = rcClient.top + i * (nHeight + s_nSpace); 
			rc.bottom = rc.top + nHeight;
			rc.left = rcClient.left + j * (nWidth + s_nSpace); 
			rc.right = rc.left + nWidth;
			arCells.Add(rc);

			nTrueIndex = nIndex + nPos * (m_nRows * m_nCols);
			if (nTrueIndex <= m_arPreViewCtrls.GetSize() - 1)
			{
				if (pDC != NULL) pDC->FillSolidRect(&rc,RGB(0,0,0));
			}
			else
			{
				if (pDC != NULL) pDC->FillSolidRect(&rc,crOld);
			}
		}
	}
	if (pDC != NULL) pDC->SetBkColor(crOld);
}

void CBlkRecsPreviewCtrlEx::SetShowViewPort(CDC* pDC,CArray<CRect,CRect>& arCells)
{
	CGsPreviewCtrlEx* pView = NULL;
	AcDbExtents exts;
	AcGsDCRect dcRc;
	AcDbDatabase* pDb = NULL;
	int nShows = m_nCols * m_nRows;
	int nCount = (int)m_arPreViewCtrls.GetSize();

	if (nCount > nShows)
	{
		int nPagePos = GetScrollPos(SB_VERT);
		int nFrom = nPagePos * nShows;
		int nTo = nFrom + nShows - 1;
		if (nTo > nCount - 1) nTo = nCount - 1;

		int nRcIndex = 0,nOld = 0;
		CRect rc,rcLable;
		CString sName,sKey;

		CFont *pFont = NULL;
		CFont font;
		LOGFONT lf;
		memset(&lf, 0, sizeof(LOGFONT));
		lf.lfHeight = s_nSpace - 2;
		lf.lfWidth  = 0;
		lf.lfEscapement = 0;
		lf.lfWeight = FW_NORMAL;
		_tcscpy(lf.lfFaceName, _T("宋体"));
		if (m_bLfFont)
		{
			memcpy(&lf,&m_lfFont,sizeof(LOGFONT));
		}
		VERIFY(font.CreateFontIndirect(&lf));

		pFont = pDC->SelectObject(&font);

		for (int i = 0;i < nCount;i++)
		{
			pView = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(i);

			if (m_arDbPtrs.GetSize() == m_arPreViewCtrls.GetSize())
			{
				pDb = (AcDbDatabase*)m_arDbPtrs.GetAt(i);
			}
			else
			{
				CString sDwgFile = m_arDwgFiles.GetAt(i);
				if (pDb) pView->OnZoomExtents(pDb);
			}

			if (i >= nFrom && i <= nTo)
			{
				nRcIndex = i % (m_nRows * m_nCols);
				rc = arCells.GetAt(nRcIndex);

				if (pView->GetMaxFlag() == 0)
				{
					pView->MoveWindow(rc);
				}
				pView->SetCellRect(rc);

				//写文字标题
				rcLable = rc;
				rcLable.top = rc.bottom;
				rcLable.bottom = rcLable.top + s_nSpace;

				sKey.Format(_T("%p"),pView);
				if (m_mapEntPtr2Name.Lookup(sKey,sName))
				{
					rcLable.DeflateRect(0,1,0,1);
					nOld = pDC->SetBkMode(TRANSPARENT);
					pDC->DrawText(sName,rcLable,DT_CENTER);
					pDC->SetBkMode(nOld);
				}

				if (m_arDbPtrs.GetSize() == m_arPreViewCtrls.GetSize())
				{
					pView->OnZoomExtents(pDb);
				}
				else
				{
					CString sDwgFile = m_arDwgFiles.GetAt(i);
					m_mapDwgFile2Db.Lookup(sDwgFile,(void*&)pDb);
					if (pDb) pView->OnZoomExtents(pDb);
				}
			}
			else
			{
				pView->MoveWindow(CRect(0,0,1,1));
			}
		}
		pDC->SelectObject(pFont);
	}
	else
	{
		int nOld = 0;
		CString sName,sKey;

		CFont *pFont = NULL;
		CFont font;
		LOGFONT lf;
		memset(&lf, 0, sizeof(LOGFONT));
		lf.lfHeight = s_nSpace - 2;
		lf.lfWidth  = 0;
		lf.lfEscapement = 0;
		lf.lfWeight = FW_NORMAL;
		_tcscpy(lf.lfFaceName, _T("宋体"));
		if (m_bLfFont)
		{
			memcpy(&lf,&m_lfFont,sizeof(LOGFONT));
		}
		VERIFY(font.CreateFontIndirect(&lf));

		pFont = pDC->SelectObject(&font);

		//if (m_arDbPtrs.GetSize() == nCount)
		{
			CRect rc(0,0,0,0),rcLable;
			for (int i = 0;i < nCount;i++)
			{
				pView = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(i);
				rc = arCells.GetAt(i);

				if (pView->GetMaxFlag() == 0)
				{
					pView->MoveWindow(rc);
				}

				pView->SetCellRect(rc);

				//写文字标题
				//写文字标题
				rcLable = rc;
				rcLable.top = rc.bottom;
				rcLable.bottom = rcLable.top + s_nSpace;

				sKey.Format(_T("%p"),pView);
				if (m_mapEntPtr2Name.Lookup(sKey,sName))
				{
					rcLable.DeflateRect(0,1,0,1);
					nOld = pDC->SetBkMode(TRANSPARENT);
					pDC->DrawText(sName,rcLable,DT_CENTER);
					pDC->SetBkMode(nOld);
				}

				if ( m_arDbPtrs.GetSize() == m_arPreViewCtrls.GetSize() )
				{
					pDb = (AcDbDatabase*)m_arDbPtrs.GetAt(i);
					pView->OnZoomExtents(pDb);
				}
				else
				{
					CString sDwgFile = m_arDwgFiles.GetAt(i);
					if (pDb) pView->OnZoomExtents(pDb);
				}
			}
		}
		pDC->SelectObject(pFont);
	}
}

void CBlkRecsPreviewCtrlEx::OnLButtonDown(UINT nFlags, CPoint point) 
{
	//判断当前是否有最大化
	for (int i = 0;i < m_arPreViewCtrls.GetSize();i++)
	{
		CGsPreviewCtrlEx* pPreViewCtrl = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(i);
		if ( pPreViewCtrl != NULL)
		{
			if ( pPreViewCtrl->GetMaxFlag() )//max
			{
				return;
			}
		}
	}

	CArray<CRect,CRect> arCells;
	DrawGridCell(NULL,arCells);

	int nLastSel = m_nCurSel;
	m_nCurSel = HitViewCell(point);

	CRect rcLast = GetCellIndexRect(nLastSel);
	CRect rcCurs = GetCellIndexRect(m_nCurSel);

	rcLast.DeflateRect(-2,-2,-2,-2);
	InvalidateRect(rcLast);

	rcCurs.DeflateRect(-2,-2,-2,-2);
	InvalidateRect(rcCurs);

	if (m_nCurSel > -1 && m_nCurSel < m_arPreViewCtrls.GetSize())
	{
		int nTrueIndex = m_nCurSel + GetScrollPos(SB_VERT) * (m_nRows * m_nCols);
		if (nTrueIndex > -1 && nTrueIndex < m_arPreViewCtrls.GetSize())
		{
			GetParent()->SendMessage(WM_ONITEMSEL,nTrueIndex,0);

			CGsPreviewCtrlEx* pPreViewCtrl = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(nTrueIndex);
			WORD nFlag = 0;
			if ( m_mapViewCtrl2Pt.Lookup(pPreViewCtrl,nFlag) )
			{
				if (nFlag == 1)//point default
				{
					GetParent()->SendMessage(WM_TRUERELOAD,nTrueIndex,0);
				}
			}
		}
	}

	rcCurs.DeflateRect(-2,-2,-2,-2);
	InvalidateRect(rcCurs);
}

void CBlkRecsPreviewCtrlEx::OnLButtonUp(UINT nFlags, CPoint point)
{
	if (GetParent() != NULL)
	{
		int nId = GetDlgCtrlID();
		GetParent()->SendMessage(WM_COMMAND,MAKEWPARAM(nId,BN_CLICKED),(LPARAM)m_hWnd);
	}
}

CRect CBlkRecsPreviewCtrlEx::GetCellIndexRect(int nIndex)
{
	int nIndex2 = -1;
	CRect rc,rcClient;
	GetClientRect(&rcClient);
	rcClient.DeflateRect(s_nSpace,s_nSpace,s_nSpace,s_nSpace);

	int nWidth = (rcClient.Width() - (m_nCols - 1) * s_nSpace ) / m_nCols;
	int nHeight = (rcClient.Height() - (m_nRows - 1) * s_nSpace) / m_nRows;

	int nCurCell = m_nCurSel % (m_nCols * m_nRows);
	for (int i = m_nRows - 1;i > -1;i--)
	{
		for (int j = 0;j < m_nCols;j++)
		{
			nIndex2 = i * m_nCols + j;
			if (nIndex == nIndex2)
			{
				rc.top = rcClient.top + i * (nHeight + s_nSpace); 
				rc.bottom = rc.top + nHeight;
				rc.left = rcClient.left + j * (nWidth + s_nSpace); 
				rc.right = rc.left + nWidth;
				return rc;
			}
		}
	}
	return CRect(0,0,0,0);
}

void CBlkRecsPreviewCtrlEx::OnLButtonDblClk(UINT nFlags, CPoint point) 
{
	m_nCurSel = HitViewCell(point);
	if (m_nCurSel != -1)
	{
		int nTrueSel = m_nCurSel + GetScrollPos(SB_VERT) * (m_nRows * m_nCols);
		GetParent()->SendMessage(WM_VIEWDBLCLKSEL,nTrueSel,0);

		CGsPreviewCtrlEx* pPreViewCtrl = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(nTrueSel);
		if ( pPreViewCtrl != NULL)
		{
			CRect rcClient;
			GetClientRect(&rcClient);

			CRect rcCtrl;
			pPreViewCtrl->GetWindowRect(&rcCtrl);
			ScreenToClient(&rcCtrl);

			if ( pPreViewCtrl->GetMaxFlag() == 0 )//不同
			{
				pPreViewCtrl->MoveWindow(rcClient);
				pPreViewCtrl->SetMaxFlag(TRUE);
				pPreViewCtrl->InvalidateRect(rcClient);
			}
			else //返回小格
			{
				pPreViewCtrl->SetMaxFlag(FALSE);
			}
			Invalidate();
		}
	}
	else //外部点击
	{
		CRect rcClient;
		GetClientRect(&rcClient);


		CGsPreviewCtrlEx* pPreViewCtrl = NULL;
		for (int i = 0;i < m_arPreViewCtrls.GetSize();i++)
		{
			pPreViewCtrl = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(i);
			if ( pPreViewCtrl->GetMaxFlag() == 1 )//不同
			{
				CRect rcCtrl;
				pPreViewCtrl->GetWindowRect(&rcCtrl);
				ScreenToClient(&rcCtrl);

				if (rcCtrl.PtInRect(point))
				{
					pPreViewCtrl->SetMaxFlag(FALSE);
					break;
				}
			}
		}
		Invalidate();
	}
}

int CBlkRecsPreviewCtrlEx::HitViewCell(CPoint point)
{
	int nIndex = -1,nTrueIndex = -1;
	CRect rc,rcClient;
	GetClientRect(&rcClient);
	rcClient.DeflateRect(s_nSpace,s_nSpace,s_nSpace,s_nSpace);

	int nWidth = (rcClient.Width() - (m_nCols - 1) * s_nSpace ) / m_nCols;
	int nHeight = (rcClient.Height() - (m_nRows - 1) * s_nSpace) / m_nRows;

	int nCurCell = m_nCurSel % (m_nCols * m_nRows);
	for (int i = m_nRows - 1;i > -1;i--)
	{
		for (int j = 0;j < m_nCols;j++)
		{
			nIndex = i * m_nCols + j;
			rc.top = rcClient.top + i * (nHeight + s_nSpace); 
			rc.bottom = rc.top + nHeight;
			rc.left = rcClient.left + j * (nWidth + s_nSpace); 
			rc.right = rc.left + nWidth;

			if (rc.PtInRect(point))
			{
				nTrueIndex = nIndex + GetScrollPos(SB_VERT) * (m_nRows * m_nCols);
				if (nTrueIndex > m_arPreViewCtrls.GetSize() -1)
				{
					return -1;
				}
				return nIndex;
			}
		}
	}

	//当最大化时,点击框外
	CGsPreviewCtrlEx* pEx = NULL;
	for (int i = 0;i < m_arPreViewCtrls.GetSize();i++)
	{
		pEx = (CGsPreviewCtrlEx*)m_arPreViewCtrls.GetAt(i);
		if (pEx->GetMaxFlag() == 1)
		{
			pEx->GetWindowRect(&rc);
			ScreenToClient(&rc);

			if (rc.PtInRect(point))
			{
				return i;
			}
		}
	}
	return -1;
}

BOOL CBlkRecsPreviewCtrlEx::OnEraseBkgnd(CDC* pDC) 
{
	CRect rc;
	GetClientRect(&rc);
	COLORREF cr = RGB(192,192,192);
	pDC->FillSolidRect(&rc,cr);
	return FALSE;
}

void CBlkRecsPreviewCtrlEx::OnSize(UINT nType, int cx, int cy) 
{
	CWnd::OnSize(nType, cx, cy);	
}

void CBlkRecsPreviewCtrlEx::OnDestroy() 
{
	DestroyAll();
	CWnd::OnDestroy();
}

void CBlkRecsPreviewCtrlEx::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	switch (nSBCode)
	{
	case SB_LINEUP:
	case SB_PAGEUP:
		{
			nPos -= 1;
			int nMin = 0,nMax = 0;
			GetScrollRange(SB_VERT,&nMin,&nMax);

			if (int(nPos) < nMin)
				return;
			SetScrollPos(SB_VERT,nPos,FALSE);
			Invalidate();
			break;
		}
	case SB_PAGEDOWN:
	case SB_LINEDOWN:
		{
			nPos += 1;
			int nMin = 0,nMax = 0;
			GetScrollRange(SB_VERT,&nMin,&nMax);

			if (int(nPos) > nMax)
				return;
			SetScrollPos(SB_VERT,nPos,FALSE);
			Invalidate();
			break;
		}
	case SB_THUMBTRACK:
		{
			SetScrollPos(SB_VERT,nPos,FALSE);
			Invalidate();
			break;
		}
	default:
		break;
	}
}
	
BOOL CBlkRecsPreviewCtrlEx::Create(const RECT& rect, CWnd* pParentWnd, UINT nID)
{
	LPCTSTR pszClass = AfxRegisterWndClass(
		  CS_VREDRAW | CS_HREDRAW | CS_DBLCLKS,
		  ::LoadCursor(NULL, IDC_ARROW),
		  (HBRUSH) ::GetStockObject(WHITE_BRUSH),
		  ::LoadIcon(NULL, IDI_APPLICATION));

	DWORD dwStyle = WS_CHILD | WS_VISIBLE | WS_VSCROLL;
	return CWnd::Create(pszClass,_T("BlkRecsPreviewCtrl"),dwStyle,rect,pParentWnd,nID);
}

void CBlkRecsPreviewCtrlEx::ZoomExtent(AcGsView* pView,AcDbExtents* pExtAll)
{

}

void CBlkRecsPreviewCtrlEx::ZoomExtent(int nGsViewIndex,AcDbExtents* pExtAll)
{
	
}