wycview.cpp

基于MO＋VC++开发的公交查询系统代码！实现公交线路的查询输入修改等操作

// wycView.cpp : implementation of the CWycView class
//

#include "stdafx.h"
#include "wyc.h"
#include "morectangle.h"
#include "MoTableDesc.h"
#include "MapHelper.h"
#include "MapObjects2.h"
#include "map.h"
#include "MoPoint.h"
#include "wycDoc.h"
#include "wycView.h"
#include "LAYER.h"
#include "DELETELAYER.h"


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

/////////////////////////////////////////////////////////////////////////////
// CWycView

IMPLEMENT_DYNCREATE(CWycView, CFormView)

BEGIN_MESSAGE_MAP(CWycView, CFormView)
	//{{AFX_MSG_MAP(CWycView)
	ON_WM_SIZE()
	ON_COMMAND_RANGE(ID_MAP_ZOOMIN, ID_GETPOINTCOOR, OnMapTool)
	ON_UPDATE_COMMAND_UI_RANGE(ID_MAP_ZOOMIN, ID_GETPOINTCOOR, OnUpdateMapTool)
	ON_COMMAND(ID_FULLEXTEND, OnMapFullExtent)
	ON_COMMAND(ID_GETLENGTH_LINE, OnGetlengthLine)
	ON_COMMAND(ID_GETDISTANCE_P1TOP2, OnGetdistanceP1top2)
	ON_UPDATE_COMMAND_UI(ID_SEARCH_STATES, OnUpdateSearchStates)
	ON_COMMAND(ID_ADDPOINT, OnAddpoint)
	ON_COMMAND(ID_ADDRECTANGLE, OnAddrectangle)
	ON_COMMAND(ID_ADDLINE, OnAddline)
	ON_COMMAND(ID_FILE_SAVE, OnFileSave)
	ON_COMMAND(ID_ADDELLIPSE, OnAddellipse)
	ON_COMMAND(ID_MAP_ADDPOLY, OnMapAddpoly)
	ON_COMMAND(ID_FILE_OPEN, OnFileOpen)
	ON_COMMAND(ID_FILE_NEW, OnFileNew)
	ON_COMMAND(ID_SELECT, OnSelect)
	ON_COMMAND(ID_SEARCH_STATES, OnSearchStates)
	ON_COMMAND(ID_DELETELAYER, OnDeletelayer)
	ON_COMMAND(ID_RESETLAYER, OnResetlayer)
	ON_COMMAND(ID_QUERY_POINT, OnQueryPoint)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CFormView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CFormView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CFormView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CWycView construction/destruction

CWycView::CWycView()
	: CFormView(CWycView::IDD)
{
	//{{AFX_DATA_INIT(CWycView)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// TODO: add construction code here

}

CWycView::~CWycView()
{
}

void CWycView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CWycView)
	DDX_Control(pDX, IDC_MAP1, m_map);
	//}}AFX_DATA_MAP
}

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

	return CFormView::PreCreateWindow(cs);
}

void CWycView::OnInitialUpdate()
{
	CFormView::OnInitialUpdate();
	GetParentFrame()->RecalcLayout();
	ResizeParentToFit();

	///设置地图背景色------
	COLORREF m_BackColor = RGB(150,180,0);
	m_map.SetBackColor(m_BackColor);
    
		VERIFY(SetTimer(1, 1000, 0));	// 1 second timer
	
	//
	// Add data to the map.
	//
	AddLayer(m_map, TEXT("..\\data\\usa\\states.shp"), moLimeGreen);
	AddLayer(m_map, TEXT("..\\data\\usa\\counties.shp"), moPaleYellow);
	AddLayer(m_map, TEXT("..\\data\\usa\\ushigh.shp"), moRed);
	
	//
	// Set up county renderer
	//
	CMoLayers	layers(m_map.GetLayers());
	CMoMapLayer	counties(layers.Item(COleVariant(TEXT("Counties"))));
	
	CMoClassBreaksRenderer cbRenderer;	// Create from scratch
	cbRenderer.CreateDispatch(TEXT("MapObjects2.ClassBreaksRenderer"));
	cbRenderer.SetField(TEXT("MOBILEHOME"));
	
	// calculate breaks away from the mean in both directions,
	// but only add those breaks that are within the range of values
	CMoRecordset  recs(counties.GetRecords());
	CMoStatistics stats(recs.CalculateStatistics(TEXT("MOBILEHOME")));
	double breakVal = stats.GetMean() - (stats.GetStdDev() * 3.0);
	double min = stats.GetMin();
	double max = stats.GetMax();
	for (int i = 0; i < 7; i++)
	{
		if (min <= breakVal &&  breakVal <= max)
		{
			int breakCount = cbRenderer.GetBreakCount();
			cbRenderer.SetBreakCount(breakCount + 1);
			cbRenderer.SetBreak(breakCount, breakVal);
		}
		breakVal = breakVal + stats.GetStdDev();
	}
	
	cbRenderer.RampColors(moPaleYellow, moOrange);
	counties.SetRenderer(cbRenderer);
	
	//
	// Set up states renderer
	//
	CMoMapLayer	states(layers.Item(COleVariant(TEXT("States"))));
	
	CMoDotDensityRenderer ddRenderer;	// Create from scratch
	ddRenderer.CreateDispatch(TEXT("MapObjects2.DotDensityRenderer"));
	ddRenderer.SetField(TEXT("NO_FARMS87"));
	recs = states.GetRecords();
	stats = recs.CalculateStatistics(TEXT("NO_FARMS87"));
	ddRenderer.SetDotValue(stats.GetMax() / 100.0);
	states.SetRenderer(ddRenderer);
	
	//
	//
	// Set the tracking layer symbol
	//
	CMoTrackingLayer tLayer(m_map.GetTrackingLayer());
	tLayer.SetSymbolCount(1);
	
	CMoFont fnt;
	
	fnt.InitializeFont(); // similar to CreateDispatch
	
	// now define the font face
	fnt.SetName(TEXT("Wingdings"));
	
	CMoSymbol sym(tLayer.GetSymbol(0));
	sym.SetColor(moBlack);
	sym.SetStyle(moTrueTypeMarker);
	sym.SetFont(fnt.GetFontDispatch());
	sym.SetSize(18);
	sym.SetCharacterIndex(81);
	
	fnt.ReleaseFont();
	
	
}

/////////////////////////////////////////////////////////////////////////////
// CWycView printing

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

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

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

void CWycView::OnPrint(CDC* pDC, CPrintInfo* /*pInfo*/)
{
	// TODO: add customized printing code here
}

/////////////////////////////////////////////////////////////////////////////
// CWycView diagnostics

#ifdef _DEBUG
void CWycView::AssertValid() const
{
	CFormView::AssertValid();
}

void CWycView::Dump(CDumpContext& dc) const
{
	CFormView::Dump(dc);
}

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

/////////////////////////////////////////////////////////////////////////////
// CWycView message handlers

void CWycView::OnSize(UINT nType, int cx, int cy) 
{
	CFormView::OnSize(nType, cx, cy);
	if (m_map.m_hWnd)
		m_map.SetWindowPos(0, 0, 0, cx, cy, SWP_NOZORDER);	
}

BEGIN_EVENTSINK_MAP(CWycView, CFormView)
    //{{AFX_EVENTSINK_MAP(CWycView)
	ON_EVENT(CWycView, IDC_MAP1, -605 /* MouseDown */, OnMouseDownMap1, VTS_I2 VTS_I2 VTS_I4 VTS_I4)
	ON_EVENT(CWycView, IDC_MAP1, -601 /* DblClick */, OnDblClickMap1, VTS_NONE)
	ON_EVENT(CWycView, IDC_MAP1, 2 /* BeforeLayerDraw */, OnBeforeLayerDrawMap1, VTS_I2 VTS_I4)
	ON_EVENT(CWycView, IDC_MAP1, 4 /* AfterTrackingLayerDraw */, OnAfterTrackingLayerDrawMap1, VTS_I4)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CWycView::OnMouseDownMap1(short Button, short Shift, long X, long Y) 
{
	// Set a variant to use when refreshing the tracking layer
	VARIANT va;
	VariantInit(&va);
	va.vt = VT_I4;
    // Get the tracking layer
	CMoTrackingLayer tLayer(m_map.GetTrackingLayer());


	switch (m_curTool)
	{
	case ID_MAP_ZOOMIN:
		{
			m_map.SetMousePointer(51);
			CMoRectangle r(m_map.TrackRectangle());
			if (LPDISPATCH(r))
				m_map.SetExtent(r);
			
		}break;
		
	case ID_MAP_ZOOMOUT:
		{
			m_map.SetMousePointer(52);
			CMoRectangle r(m_map.GetExtent());
			r.ScaleRectangle(1.5);
			m_map.SetExtent(r);
			
		}break;
		
	case ID_MAP_PAN:
		{
			m_map.SetMousePointer(53);
			m_map.Pan();
			
		}break;
	case ID_SELECT:
		m_map.SetMousePointer(57);
		break;
	case ID_MAP_QUERY:		
		{
			//
			// search for a highway within a N pixel tolerance
			//
			const double tolerance = m_map.ToMapDistance((float)10);
			CMoLayers	layers(m_map.GetLayers());
			CMoMapLayer	highways(layers.Item(COleVariant(TEXT("USHigh"))));
			CMoPoint	mapPt(m_map.ToMapPoint((float)X, (float)Y));
			CMoRecordset	selectedHighways(highways.SearchByDistance(mapPt, tolerance, TEXT("")));
			
			if (selectedHighways.GetEof())
				::MessageBeep(MB_ICONQUESTION);		// no highways found
			else
			{
				// Find counties that selected highways intersect
				CMoMapLayer  counties(layers.Item(COleVariant(TEXT("Counties"))));
				m_selection = counties.SearchShape(selectedHighways, 
					moEdgeTouchOrAreaIntersect, TEXT(""));
				// Redraw map
				//m_map.Refresh();
				VARIANT va;
				VariantInit(&va);
				va.vt = VT_NULL; 
				
				CMoTrackingLayer m_trackLayer(m_map.GetTrackingLayer());
				m_trackLayer.Refresh(true,va);	
			}
			
		}
		break;

		
	case    ID_GETPOINTCOOR:
		{
			
			CMoPoint  m_CurrentPoint;
			//if(!m_CurrentPoint.CreateDispatch("MapObjects2.Point"))
			// return;
			m_CurrentPoint = m_map.ToMapPoint(float(X),float(Y));
			CString  m_CoordinateStr,m_XCoordinateStr,m_YCoordinateStr;
			m_XCoordinateStr.Format("%f",m_CurrentPoint.GetX());
			m_YCoordinateStr.Format("%f",m_CurrentPoint.GetY());
			m_CoordinateStr = "X:"+m_XCoordinateStr+",Y:"+m_YCoordinateStr;
			MessageBox(m_CoordinateStr);
			m_CurrentPoint.ReleaseDispatch();
			
			
		}break;
	case  ID_GETDISTANCE_P1TOP2:
		{
			if(m_mouseDownNum==0)
				m_startPoint = m_map.ToMapPoint(float(X),float(Y));
			else
				m_endPoint = m_map.ToMapPoint(float(X),float(Y));
			m_mouseDownNum ++;
			
					    	
		}break;
	case  ID_GETLENGTH_LINE:
		{
			CMoPoint	mapPt(m_map.ToMapPoint((float)X, (float)Y));			   
			//***1实现线目标的扑捉		
			//求解当前放大系数
			CMoRectangle rect_Extent(m_map.GetExtent());
			double X_Scale;
			double Y_Scale;
			
			double x = mapPt.GetX();
			double y = mapPt.GetY();
			X_Scale = rect_Extent.GetHeight()/m_map.GetFullExtent().GetHeight();
			Y_Scale = rect_Extent.GetWidth()/m_map.GetFullExtent().GetWidth();
			double m_Scale = X_Scale;
			if(X_Scale>Y_Scale)
				m_Scale = Y_Scale;
			
			//设置扑捉范围
			CMoRectangle  select_Rect;
			if(!select_Rect.CreateDispatch("MapObjects2.Rectangle"))
			return;
			select_Rect.SetBottom(y-2*m_Scale);
			select_Rect.SetTop(y+2*m_Scale);
			select_Rect.SetLeft(x-2*m_Scale);
			select_Rect.SetRight(x+2*m_Scale);
			//扑捉并得到目标
			CMoLayers	layers(m_map.GetLayers());
			CMoMapLayer  SelectedMapLayer(layers.Item(COleVariant(TEXT("USHigh"))));
			CMoRecordset m_SelectedRecSet;
			m_SelectedRecSet = SelectedMapLayer.SearchShape(select_Rect,6,"");
			m_SelectedRecSet.MoveFirst();
			CMoFields  ShapeFields(m_SelectedRecSet.GetFields());
			CMoField   ShapeField(ShapeFields.Item(COleVariant(TEXT("Shape"))));
			CMoLine * pLine = new CMoLine();
			pLine->AttachDispatch(ShapeField.GetValue().pdispVal);			
			//得到并显示目标
			CMoPolygon shape(ShapeField.GetValue().pdispVal);
			CMoRectangle r(shape.GetExtent());
			r.ScaleRectangle(2);
			m_map.SetExtent(r);	 // zoom to the state
			m_map.Refresh();	// force redraw
			m_map.FlashShape(shape, 3);
			//**得到线目标的长度
			double Length;
			Length = pLine->GetLength();
			CString StrLength;
			StrLength.Format("%f",Length);
			MessageBox("所查询线段目标的长度为:"+StrLength);
			
			mapPt.ReleaseDispatch();
			select_Rect.ReleaseDispatch();
			delete pLine; 
					/*	CString resultStr;
			for(int i=0;i<tableDesc.GetFieldCount();i++)
			{
			CString name = tableDesc.GetFieldName(i);
			ShapeField = ShapeFields.Item(COleVariant(name));
			CString value = ShapeField.GetValueAsString();
			resultStr = resultStr+name+":"+value+"\n";
			}
			MessageBox(resultStr);*/
			
		}	
		break;
	case  ID_SEARCH_STATES:
		{
			CMoPoint mapPt(m_map.ToMapPoint((float)X, (float)Y));
			//求解当前放大比例系数
			CMoRectangle rect_Extent(m_map.GetExtent());
			double x = mapPt.GetX();
			double y = mapPt.GetY();
			double X_Scale;
			double Y_Scale;
			X_Scale=rect_Extent.GetHeight()/m_map.GetFullExtent().GetHeight();
			Y_Scale=rect_Extent.GetHeight()/m_map.GetFullExtent().GetHeight();
			double m_Scale=X_Scale;
			if(X_Scale>Y_Scale)
				m_Scale=Y_Scale;
			//得到捕捉范围
			CMoRectangle select_Rect;
			if(!select_Rect.CreateDispatch("MapObjects2.Rectangle"))
				return;
			select_Rect.SetBottom(y-2*m_Scale);
			select_Rect.SetTop(y+2*m_Scale);
			select_Rect.SetLeft(x-2*m_Scale);
			select_Rect.SetRight(x+2*m_Scale);
			//
			CMoLayers	layers(m_map.GetLayers());
			CMoMapLayer	selectedMaplayer(layers.Item(COleVariant(TEXT("Counties"))));
			CMoRecordset m_SelectedRecSet;
			m_SelectedRecSet=selectedMaplayer.SearchShape(select_Rect,6,"");
			m_SelectedRecSet.MoveFirst();
			CMoFields  shapeFields(m_SelectedRecSet.GetFields());
			CMoField  shapeField(shapeFields.Item(COleVariant(TEXT("Shape"))));
			CMoPolygon *pPoly=new CMoPolygon();
			pPoly->AttachDispatch(shapeField.GetValue().pdispVal);
			
			//闪烁显示目标
			CMoPolygon shape(shapeField.GetValue().pdispVal);
			CMoRectangle r(shape.GetExtent());
			r.ScaleRectangle(2);