mapgisview.cpp

利用MapX开发应用型GIS源代码 VC++

// MapGisView.cpp : implementation of the CMapGisView class
//

#include "stdafx.h"
#include "MapGis.h"

#include "MapGisDoc.h"
#include "MapGisView.h"

#include "MainFrm.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMapGisView

IMPLEMENT_DYNCREATE(CMapGisView, CView)

BEGIN_MESSAGE_MAP(CMapGisView, CView)
	//{{AFX_MSG_MAP(CMapGisView)
	ON_WM_CREATE()
	ON_WM_SIZE()
	ON_COMMAND(ID_FILE_OPEN, OnFileOpen)
	ON_COMMAND(ID_MAP_TOOL_DISTANCE, OnMapToolDistance)
	ON_COMMAND(ID_MAP_TOOL_PAN, OnMapToolPan)
	ON_COMMAND(ID_MAP_TOOL_RADIUSSELECT, OnMapToolRadiusselect)
	ON_COMMAND(ID_MAP_TOOL_ZOOMIN, OnMapToolZoomin)
	ON_COMMAND(ID_MAP_TOOL_ZOOMOUT, OnMapToolZoomout)
	ON_COMMAND(ID_VIEW_LAYERCONTROL, OnViewLayercontrol)
	ON_COMMAND(ID_MAP_TOOL_RECTANGLESELECT, OnMapToolRectangleselect)
	ON_COMMAND(ID_MAP_TOOL_SELECT, OnMapToolSelect)
	ON_UPDATE_COMMAND_UI(ID_MAP_TOOL_ZOOMIN, OnUpdateMapToolZoomin)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

//定义MapX工具事件
BEGIN_EVENTSINK_MAP(CMapGisView, CView)
	ON_EVENT(CMapGisView, IDC_MAP, MAPX_DISPID_POLYTOOLUSED /* PolyToolUsed */, OnPolyToolUsedMap, VTS_I2 VTS_I4 VTS_DISPATCH VTS_BOOL VTS_BOOL VTS_PBOOL)
END_EVENTSINK_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMapGisView construction/destruction

CMapGisView::CMapGisView()
{
	// TODO: add construction code here

}

CMapGisView::~CMapGisView()
{
}

BOOL CMapGisView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMapGisView drawing

void CMapGisView::OnDraw(CDC* pDC)
{
	CMapGisDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CMapGisView printing

BOOL CMapGisView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CMapGisView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CMapGisView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CMapGisView diagnostics

#ifdef _DEBUG
void CMapGisView::AssertValid() const
{
	CView::AssertValid();
}

void CMapGisView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CMapGisDoc* CMapGisView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMapGisDoc)));
	return (CMapGisDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMapGisView message handlers

int CMapGisView::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CView::OnCreate(lpCreateStruct) == -1)
		return -1;

	SetCapture();
	BeginWaitCursor();
	try
    {
		CRect ViewRect;
		GetClientRect(ViewRect);
		//创建MapX地图对象
		m_bMapData=m_ctrlMapX.Create(NULL, WS_VISIBLE, ViewRect, this, IDC_MAP);
		if (m_bMapData==FALSE)
		{
			AfxMessageBox("无法建立地理图!");
			return -1;
		}
		//取当前路径
		char m_CurrentPath[250];
		GetCurrentDirectory(250,m_CurrentPath);
		char m_strGst[250];
        strcpy(m_strGst, m_CurrentPath);
		strcat(m_strGst,"\\GST\\China地图.gst");

        //设置地图属性
		m_ctrlMapX.SetGeoSet(m_strGst);  //打开工程文件“China地图.gst”
		//m_ctrlMapX.SetTitleText("");     //不显示地图标题 
		m_ctrlMapX.SetMapUnit(1);        //长度单位(公里)
		m_ctrlMapX.SetAreaUnit(15);      //面积单位(平方公里)

    	// 建立用于距离测量自定义工具
		m_ctrlMapX.CreateCustomTool(MYTOOL_DISTANCE, miToolTypePoly, miCrossCursor);//距离工具
	}
	catch (COleDispatchException *e) {
		e->ReportError();
		e->Delete();
	}
	catch (COleException *e) {
		e->ReportError();
		e->Delete();
	}
	ReleaseCapture();
	EndWaitCursor();
	m_ctrlMapX.SetMousePointer(0);

/*
	//下面代码绑定数据
	try {
		long Total_Layers= m_ctrlMapX.GetLayers().GetCount();
		for (int i=0;i<Total_Layers;i++)
		{
			CMapXLayer layer = m_ctrlMapX.GetLayers().Item(i+1);
			VARIANT vtLayer;
			vtLayer.vt = VT_DISPATCH;
			vtLayer.pdispVal = layer.m_lpDispatch;
	        CString na=layer.GetName();
			CMapXDataset dataSet = m_ctrlMapX.GetDatasets().Add(miDataSetLayer, vtLayer, na);
		}
 
	}  // end-of-try
	catch (COleDispatchException *e) {
		e->ReportError();
		e->Delete();
	}

	catch (COleException *e) {
		e->ReportError();
		e->Delete();
	}
*/
	return 0;
}

void CMapGisView::OnSize(UINT nType, int cx, int cy) 
{
	CView::OnSize(nType, cx, cy);
	if ( cx != 0 && cy != 0 && m_bMapData )
	{
		try
		{
			m_ctrlMapX.MoveWindow(0,0,cx,cy,TRUE);
		}
		catch (COleDispatchException *e) {
			e->ReportError();
			e->Delete();
		}

		catch (COleException *e) {
			e->ReportError();
			e->Delete();
		}
	}
}

void CMapGisView::OnFileOpen() 
{
	static char BASED_CODE szSplitFilter[] = _T("地图文件(*.gst)|*.gst||");
 
	CString filter;
	filter = szSplitFilter;

	CFileDialog dlg(TRUE,
					NULL, 
					NULL, 
					OFN_HIDEREADONLY	| 
					OFN_OVERWRITEPROMPT | 
					OFN_FILEMUSTEXIST,
					filter,
					0);

	//set source path
	if (dlg.DoModal() == IDOK) {
		CString	m_path = dlg.GetPathName();
		CString	m_filename = dlg.GetFileName();

//		CGisMapDoc * doc=new CGisMapDoc(m_path);
//		CFrameWnd* wnd=pGisDocTemplate->CreateNewFrame(doc,NULL);
//		if (wnd)
 //			pGisDocTemplate->InitialUpdateFrame(wnd,doc,TRUE);
	}
	
}

void CMapGisView::OnMapToolDistance() 
{
	m_ctrlMapX.SetCurrentTool(MYTOOL_DISTANCE);	
}

void CMapGisView::OnPolyToolUsedMap(short ToolNum, long Flags, LPDISPATCH Points, BOOL bShift, BOOL bCtrl, BOOL FAR* EnableDefault) 
{
	// 计算距离
	if (ToolNum == MYTOOL_DISTANCE) {
		CMapXPoints pts;
		long n;
		long i;
		try {
			pts.AttachDispatch(Points, FALSE); // don't auto release
			double dDistanceTot = 0.0;
			n = pts.GetCount();
			for (i=1; i<n; i++) {
				CMapXPoint pt1 = pts.Item(i);
				CMapXPoint pt2 = pts.Item(i+1);
				double d = m_ctrlMapX.Distance(pt1.GetX(), pt1.GetY(), pt2.GetX(), pt2.GetY());
				dDistanceTot += d;
			}
			CString str;
			str.Format("总距离为: %f 公里", dDistanceTot);
			((CMainFrame *)AfxGetMainWnd())->m_wndStatusBar.SetPaneText(0, str);
		}
		catch (COleDispatchException *e) {
			e->ReportError();
			e->Delete();
		}
		catch (COleException *e) {
			e->ReportError();
			e->Delete();
		}
	}
}
 
void CMapGisView::OnMapToolPan() 
{
	m_ctrlMapX.SetCurrentTool(miPanTool);
	
}

void CMapGisView::OnMapToolRadiusselect() 
{
	m_ctrlMapX.SetCurrentTool(miRadiusSelectTool);
	
}

void CMapGisView::OnMapToolZoomin() 
{
	m_ctrlMapX.SetCurrentTool(miZoomInTool);
	
}
void CMapGisView::OnUpdateMapToolZoomin(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_ctrlMapX.GetCurrentTool()==miZoomInTool);
	
}

void CMapGisView::OnMapToolZoomout() 
{
	m_ctrlMapX.SetCurrentTool(miZoomOutTool);	
	
}

void CMapGisView::OnViewLayercontrol() 
{
//图层控制
	try {
		COptionalVariant vHelpFile, vHelpID; 
		m_ctrlMapX.GetLayers().LayersDlg(vHelpFile, vHelpID);
	} catch (COleDispatchException *e) {
		e->ReportError();
		e->Delete();
	} catch (COleException *e) {
		e->ReportError();
		e->Delete();
	}
}

void CMapGisView::OnMapToolRectangleselect() 
{
	m_ctrlMapX.SetCurrentTool(miRectSelectTool);
	
}

void CMapGisView::OnMapToolSelect() 
{
	m_ctrlMapX.SetCurrentTool(miSelectTool);	
	
}