GPS编程

开发平台：
Visual C++

MapFormView.cpp：源码内容
							// MapFormView.cpp : implementation file
//
#include "stdafx.h"
#include "MapDemo.h"
#include "MapDemoDoc.h"
#include "MapView.h"
#include "MapFormView.h"
#include "MainFrm.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CMapFormView
IMPLEMENT_DYNCREATE(CMapFormView, CFormView)
CMapFormView::CMapFormView()
	: CFormView(CMapFormView::IDD)
{
	//{{AFX_DATA_INIT(CMapFormView)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_pCtrlMapX=NULL;
}
CMapFormView::~CMapFormView()
{
}
void CMapFormView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMapFormView)
	DDX_Control(pDX, IDC_MSFLEXGRID1, m_ctrlGrid);
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CMapFormView, CFormView)
	//{{AFX_MSG_MAP(CMapFormView)
	ON_WM_SIZE()
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMapFormView diagnostics
#ifdef _DEBUG
void CMapFormView::AssertValid() const
{
	CFormView::AssertValid();
}
void CMapFormView::Dump(CDumpContext& dc) const
{
	CFormView::Dump(dc);
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CMapFormView message handlers
void CMapFormView::OnInitialUpdate() 
{
	CMainFrame* pFrame=((CMainFrame*)AfxGetMainWnd());
	
	m_pMapView=pFrame->m_pMapView;
	if(m_pMapView!=NULL) 
			m_pCtrlMapX=&(m_pMapView->m_ctrlMapX);
  	m_strEditLayer=m_pMapView->m_strEditLayer;
	if(m_strEditLayer=="")
	{
		m_pMapView->SendMessage(WM_COMMAND,ID_MAPEDIT_SELETTABLE);
		m_strEditLayer=m_pMapView->m_strEditLayer;
	}
	CFormView::OnInitialUpdate();
	
	pFrame->m_pFormView=this;
	AddFormData();
	
}
void CMapFormView::OnSize(UINT nType, int cx, int cy) 
{
	CFormView::OnSize(nType, cx, cy);
	
	if(m_ctrlGrid.m_hWnd !=NULL) 
		m_ctrlGrid.MoveWindow(0,0,cx,cy,FALSE);
	
}
void CMapFormView::OnDestroy() 
{
	CFormView::OnDestroy();
	CMainFrame* pFrame=((CMainFrame*)AfxGetMainWnd());
	pFrame->m_pFormView=NULL;
	
}
void CMapFormView::AddFormData()
{
    CMapXLayer layer;
	m_strEditLayer=m_pMapView->m_strEditLayer;
	if(m_pCtrlMapX==NULL) return;
    
    
    if(m_strEditLayer!="")
		layer=m_pCtrlMapX->GetLayers().Item(m_strEditLayer);
	else return;
	try {
		
		COleVariant vtLayer;
		vtLayer.vt = VT_DISPATCH;
		vtLayer.pdispVal = layer.m_lpDispatch;
		vtLayer.pdispVal->AddRef();
          
	    CString str1=m_strEditLayer; 
		CMapXDataset dataSet;
		
		if(!IsInDataSet(m_strEditLayer))		
		 dataSet=m_pCtrlMapX->GetDatasets().Add(miDataSetLayer, vtLayer, str1);
        else 
			dataSet=m_pCtrlMapX->GetDatasets().Item(str1);
		
		
		
		
		CMapXFields mapField= dataSet.GetFields();
        int cols,rows; 
		cols=mapField.GetCount();
		rows=dataSet.GetRowCount(); 
		m_ctrlGrid.SetCols(cols+1);
		m_ctrlGrid.SetRows(rows+1); 
         
        m_ctrlGrid.SetCol(0);
		m_ctrlGrid.SetRow(0); 
		m_ctrlGrid.SetText("ͼԪID");
		for(int i=0;i<cols;i++)
		{	
		
			CMapXField field=mapField.Item(i+1);
			CString str=field.GetName();
			m_ctrlGrid.SetCol(i+1);
			m_ctrlGrid.SetText(str);
			
			int nType=field.GetType();
         
	   }//end if i
		CString str;
		//dataSet.GetLayer().BeginAccess(miAccessRead);
        for(int j=0;j<rows;j++)
			{
			 str.Format("ID %d",j);
			 
			 WriteRows(-1,j,cols+1,str);  	
			 for(i=0;i<cols;i++)
			 {
				
				VARIANT var=dataSet.GetValue(j+1, i+1);
				COleVariant vVal(var);
				vVal.ChangeType(VT_BSTR);
				str= vVal.bstrVal;
				WriteRows(i,j,cols+1,str);  
			 }	
				/*switch(nType)
				{
					case miTypeString:
					{
					
						str= vVal.bstrVal;
			
					}
					break;
				
				
					case miTypeNumeric:
					{
					
						vVal.ChangeType(VT_BSTR);
						str= vVal.bstrVal;
					}
					break;*/
					//}//end swithch   
			
		  
		  
		        
		  
		  }//end if j 
		//miAccessEnd;
	//	VARIANT vv=COleVariant((long)1);
	//	dataSet.GetLayer().EndAccess(vv);
    //end try
	} 
	catch (COleDispatchException *e) {
		e->ReportError();
		e->Delete();
	} catch (COleException *e) {
		e->ReportError();
		e->Delete();
	}
//	MessageBox("test");
}
void CMapFormView::WriteRows(int x, int y, int cols,CString str)
{
	  //m_ctrlGrid.SetCol(x+1);
	  //m_ctrlGrid.SetRow(y+1); 
      //m_ctrlGrid.SetText(str);
	  int index=(y+1)*cols+x+1;
	  m_ctrlGrid.SetTextArray(index, str);
}
BOOL CMapFormView::IsInDataSet(CString strName)
{
	CMapXDatasets datasets=m_pCtrlMapX->GetDatasets();
	for(int i=1;i<=datasets.GetCount();i++)
	{
		if(datasets.Item(i).GetName()==strName) return TRUE;
	}
   return FALSE;
}

						