geogisview.cpp

用vc和cj60lib做的读取shape文件的源代码.还有些小问题没做完。

// GeoGisView.cpp : implementation of the CGeoGisView class
//

#include "stdafx.h"
#include "GeoGis.h"

#include "GeoGisDoc.h"
#include "GeoGisView.h"

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

extern   CGraphPara  *p_GraphPara;
CGeoGisView  *p_View;
extern  DPtoVP(float x,float y,int *X,int  *Y);
extern  VPtoDP(int x,int  y,float *X,float *Y);
/////////////////////////////////////////////////////////////////////////////
// CGeoGisView

IMPLEMENT_DYNCREATE(CGeoGisView, CScrollView)

BEGIN_MESSAGE_MAP(CGeoGisView, CScrollView)
	//{{AFX_MSG_MAP(CGeoGisView)
	ON_WM_SIZE()
	ON_WM_PAINT()
	ON_COMMAND(ID_DRAW_POINT, OnDrawPoint)
	ON_UPDATE_COMMAND_UI(ID_DRAW_POINT, OnUpdateDrawPoint)
	ON_COMMAND(ID_DRAW_LINE, OnDrawLine)
	ON_UPDATE_COMMAND_UI(ID_DRAW_LINE, OnUpdateDrawLine)
	ON_COMMAND(ID_DRAW_PLINE, OnDrawPline)
	ON_UPDATE_COMMAND_UI(ID_DRAW_PLINE, OnUpdateDrawPline)
	ON_COMMAND(ID_DRAW_CIRCLE, OnDrawCircle)
	ON_UPDATE_COMMAND_UI(ID_DRAW_CIRCLE, OnUpdateDrawCircle)
	ON_WM_LBUTTONDOWN()
	ON_WM_MOUSEMOVE()
	ON_WM_LBUTTONUP()
	ON_WM_RBUTTONUP()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CScrollView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGeoGisView construction/destruction

CGeoGisView::CGeoGisView()
{
	m_xStart=0.0;
	m_yStart=0.0;
	blc=1.0;
}

CGeoGisView::~CGeoGisView()
{
}

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

	return CScrollView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CGeoGisView drawing
void CGeoGisView::VPtoDP(int x, int y, float *X, float *Y)
{
	*X = m_xStart +x*blc;
	if(m_MapMode==1)
		*Y= m_yStart +blc* (m_hScreen-y);
	else
		*Y = m_yStart+blc*(y+m_hScreen);	
}

void CGeoGisView::DPtoVP(float x, float y, int *X, int *Y)
{
	*X= (int)((x-m_xStart)/blc);
	if(m_MapMode==1)
		*Y = m_hScreen-(int)((y-m_yStart)/blc);
	else
		*Y= (int)((y-m_yStart)/blc)-m_hScreen;
}

float CGeoGisView::VLtoDL(int l)
{
	return  blc*l;
}

int CGeoGisView::DLtoVL(float l)
{
	return   (int)(l/blc);
}


void CGeoGisView::OnDraw(CDC* pDC)
{
	CGeoGisDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	DrawBack(pDC);
	pDoc->Draw(pDC,0,0,m_bColor);
}

void CGeoGisView::OnInitialUpdate()
{
	CScrollView::OnInitialUpdate();

	CSize sizeTotal;
	// TODO: calculate the total size of this view
	sizeTotal.cx = sizeTotal.cy = 100;
	SetScrollSizes(MM_TEXT, sizeTotal);
}

/////////////////////////////////////////////////////////////////////////////
// CGeoGisView printing

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CGeoGisView diagnostics

#ifdef _DEBUG
void CGeoGisView::AssertValid() const
{
	CScrollView::AssertValid();
}

void CGeoGisView::Dump(CDumpContext& dc) const
{
	CScrollView::Dump(dc);
}

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

/////////////////////////////////////////////////////////////////////////////
// CGeoGisView message handlers


void CGeoGisView::OnSize(UINT nType, int cx, int cy) 
{
	m_wScreen=cx;
	m_hScreen=cy;
	CScrollView::OnSize(nType, cx, cy);	
}

void CGeoGisView::OnActivateView(BOOL bActivate, CView* pActivateView, CView* pDeactiveView) 
{
	p_View = this;
	CScrollView::OnActivateView(bActivate, pActivateView, pDeactiveView);
}

void CGeoGisView::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	OnPrepareDC(&dc);
	OnDraw(&dc);	
}

void CGeoGisView::DrawBack(CDC *pDC)
{
	CBrush  brush(p_GraphPara->GetColor(m_bColor));
	CBrush  *pOldBrush=pDC->SelectObject(&brush);
	pDC->PatBlt(0,0,m_wScreen,m_hScreen,PATCOPY);
	pDC->SelectObject(pOldBrush);
}

void CGeoGisView::OnDrawPoint() 
{
	// TODO: Add your command handler code here
	PushNumb = 0;
	m_DrawCurrent = 0;	
}

void CGeoGisView::OnUpdateDrawPoint(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI ->SetCheck(m_DrawCurrent==0);	
}

void CGeoGisView::OnDrawLine() 
{
	PushNumb = 0;
	m_DrawCurrent = 1;
}

void CGeoGisView::OnUpdateDrawLine(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI ->SetCheck(m_DrawCurrent==1);	
}

void CGeoGisView::OnDrawPline() 
{
	// TODO: Add your command handler code here
	PushNumb = 0;
	m_DrawCurrent = 2;
	
}

void CGeoGisView::OnUpdateDrawPline(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI ->SetCheck(m_DrawCurrent==2);
	
}

void CGeoGisView::OnDrawCircle() 
{
	// TODO: Add your command handler code here
	PushNumb = 0;
	m_DrawCurrent = 3;
	
}

void CGeoGisView::OnUpdateDrawCircle(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI ->SetCheck(m_DrawCurrent==3);	
}

void CGeoGisView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	CGeoGisDoc  *pDoc = GetDocument();
	CClientDC  dc(this);

	float   r;
	float  xx1,yy1,xx2,yy2;
	//int  x1,y1,x2,y2,id_only,Lb,Index,pbh;
	int  id_only;
	BOOL   m_Fill;
	
	if(m_DrawCurrent==1)//绘制点point;
	{
		if(PushNumb==0)
		{
			PushNumb++;
			mPointOrign=point;
			mPointOld=point;
			SetCapture();
		}
		else if(PushNumb==1)
		{
			VPtoDP(mPointOrign.x,mPointOrign.y,&xx1,&yy1);
			id_only=pDoc->GetGraphID(1);
			pDoc->AddPoint(m_pColor,m_brColor,m_LineWide,m_LineType,m_Layer,id_only,xx1,yy1)
				->Draw(&dc,0,0,m_bColor);
			PushNumb=0;
			ReleaseCapture();
		}
	}
	
	CScrollView::OnLButtonDown(nFlags, point);
}

void CGeoGisView::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	
	CScrollView::OnMouseMove(nFlags, point);
}

void CGeoGisView::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	
	CScrollView::OnLButtonUp(nFlags, point);
}

void CGeoGisView::OnRButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	
	CScrollView::OnRButtonUp(nFlags, point);
}