www.pudn.com > easygis.rar > EasyGisView.cpp
// EasyGisView.cpp : implementation of the CEasyGisView class
//
#include "stdafx.h"
#include "EasyGis.h"
#include "EasyGisDoc.h"
#include "EasyGisView.h"
#include "EG_DataStruct.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CEasyGisView
IMPLEMENT_DYNCREATE(CEasyGisView, CView)
BEGIN_MESSAGE_MAP(CEasyGisView, CView)
//{{AFX_MSG_MAP(CEasyGisView)
ON_COMMAND(ID_ZOOMAREA, OnZoomarea)
ON_COMMAND(ID_ZOOMEQUAL, OnZoomequal)
ON_COMMAND(ID_ZOOMIN, OnZoomin)
ON_COMMAND(ID_ZOOMMOVEON, OnZoommoveon)
ON_COMMAND(ID_ZOOMON, OnZoomon)
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONUP()
ON_WM_MOUSEMOVE()
ON_WM_MOUSEWHEEL()
ON_UPDATE_COMMAND_UI(ID_ZOOMMOVEON, OnUpdateZoommoveon)
ON_COMMAND(ID_MOVEREMOVE, OnMoveremove)
ON_UPDATE_COMMAND_UI(ID_MOVEREMOVE, OnUpdateMoveremove)
ON_UPDATE_COMMAND_UI(ID_ZOOMAREA, OnUpdateZoomarea)
//}}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()
/////////////////////////////////////////////////////////////////////////////
// CEasyGisView construction/destruction
CEasyGisView::CEasyGisView()
{
// TODO: add construction code here
m_ZoomValue=m_fangdaxishu=1.11;
//offsetX=60;offsetY=-60;
offset=1;
m_off.x=0;
m_off.y=0;
b_moveon = FALSE;
b_areazoom = FALSE;
b_QuerryRegion = FALSE;
}
CEasyGisView::~CEasyGisView()
{
}
BOOL CEasyGisView::PreCreateWindow(CREATESTRUCT& cs)
{
// TODO: Modify the Window class or styles here by modifying
// the CREATESTRUCT cs
return CView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CEasyGisView drawing
void CEasyGisView::OnDraw(CDC* pDC)
{
CEasyGisDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
pDC->SetTextColor(RGB(255,0,0));
// TODO: add draw code for native data here
//pDC->TextOut(490,20,"六系一队 龚辉");
CTypedPtrList&WorkSpaceList
=pDoc->m_WorkSpaceList;
POSITION pos=WorkSpaceList.GetHeadPosition();
while(pos!=NULL)
{
EGC_WorkSpace * pWorkSpaceList=WorkSpaceList.GetNext(pos);
CTypedPtrList&MapList
=pWorkSpaceList->m_EGLMapList;
POSITION mpos=MapList.GetHeadPosition();
while(mpos!=NULL)
{
EGC_Map * pMapList=MapList.GetNext(mpos);
pDC->TextOut(500,2,pMapList->m_sMapName);
CTypedPtrList&LayerList
=pMapList->m_EGLLayerList;
POSITION lpos=LayerList.GetHeadPosition();
while(lpos!=NULL)
{
EGC_Layer * pLayerList=LayerList.GetNext(lpos);
///////////////////画线//////////////////////
CTypedPtrList&LineList
=pLayerList->m_EGLLineInfoList;
POSITION linepos=LineList.GetHeadPosition();
while(linepos!=NULL)
{
EGC_LineInfo * pLineList=LineList.GetNext(linepos);
pLineList->DrawLine(pDC,m_ZoomValue, offset,m_off);
}
///////////////////画面//////////////////////
CTypedPtrList&RegionList
=pLayerList->m_EGLRegionInfoList;
POSITION rpos=RegionList.GetHeadPosition();
while(rpos!=NULL)
{
EGC_RegionInfo * pRegionList=RegionList.GetNext(rpos);
pRegionList->DrawRegion(pDC, m_ZoomValue,offset,m_off,b_QuerryRegion);
}
//////////////////画矩形////////////////////
CTypedPtrList&RectList
=pLayerList->m_EGLRectInfoList;
POSITION repos=RectList.GetHeadPosition();
while(repos!=NULL)
{
EGC_RectInfo * pRectList=RectList.GetNext(repos);
pRectList->DrawRect(pDC, m_ZoomValue,offset,m_off);
}
}
}
}
GetClientRect(&winRect);
winheight = winRect.Height();
winwidth = winRect.Width();
m_fangdaxishuX=(m_MaxX-m_MinX);
m_fangdaxishuY=(m_MaxX-m_MinY);
}
////////////////////////////////////////////////////////////////////////////
BOOL EGC_PointInfo::DrawPoint(CDC * pDC)
{
return TRUE;
}
BOOL EGC_LineInfo::DrawLine(CDC * pDC,double m_ZoomValue,double offset,POINT m_off)
{
CPen PenLine;
if(!PenLine.CreatePen(PS_SOLID,2,RGB(0,120,120)))
return FALSE;
CPen *pOldPen=pDC->SelectObject(&PenLine);
pDC->MoveTo((int)((PtArray[0].X+(offset-1)*600)/m_ZoomValue+60+m_off.x),700-(int)((PtArray[0].Y+(offset-1)*400)/m_ZoomValue+60-m_off.y));
for(int i=0;iLineTo((int)((PtArray[i].X+(offset-1)*600)/m_ZoomValue+60+m_off.x),700-(int)((PtArray[i].Y+(offset-1)*400)/m_ZoomValue+60-m_off.y));
}
pDC->SelectObject(pOldPen);
return TRUE;
}
BOOL EGC_RegionInfo::DrawRegion(CDC * pDC,double m_ZoomValue,double offset,POINT m_off,bool b_QuerryRegion)
{
CPen PenRegion;
if(!PenRegion.CreatePen(PS_SOLID,1,RGB(0,0,255)))
return FALSE;
CBrush BrushRegion;
if(!BrushRegion.CreateHatchBrush(HS_BDIAGONAL,RGB(255,0,0)))
return FALSE;
CPen *pOldPen=pDC->SelectObject(&PenRegion);
CBrush *pOldBrush=pDC->SelectObject(&BrushRegion);
pDC->BeginPath();
pDC->MoveTo((int)((PtArray[0].X+(offset-1)*600)/m_ZoomValue+60+m_off.x),700-(int)((PtArray[0].Y+(offset-1)*400)/m_ZoomValue+60-m_off.y));
for(int i=0;iLineTo((int)((PtArray[i].X+(offset-1)*600)/m_ZoomValue+60+m_off.x),700-(int)((PtArray[i].Y+(offset-1)*400)/m_ZoomValue+60-m_off.y));
}
pDC->EndPath();
pDC->StrokeAndFillPath();
pDC->SelectObject(pOldPen);
pDC->SelectObject(pOldBrush);
return TRUE;
}
BOOL EGC_RectInfo::DrawRect(CDC * pDC,double m_ZoomValue,double offset,POINT m_off)
{
CPen PenRect;
if(!PenRect.CreatePen(PS_SOLID,1,RGB(0,0,255)))
return FALSE;
CBrush BrushRect;
if(!BrushRect.CreateHatchBrush(HS_BDIAGONAL,RGB(255,0,0)))
return FALSE;
CPen *pOldPen=pDC->SelectObject(&PenRect);
CBrush *pOldBrush=pDC->SelectObject(&BrushRect);
pDC->Rectangle((int)((RectArray.X1+(offset-1)*600)/m_ZoomValue+60+m_off.x),700-(int)((RectArray.Y1+(offset-1)*400)/m_ZoomValue+60-m_off.y),(int)((RectArray.X2+(offset-1)*600)/m_ZoomValue+60+m_off.x),700-(int)((RectArray.Y2+(offset-1)*400)/m_ZoomValue+60-m_off.y));
pDC->SelectObject(pOldPen);
pDC->SelectObject(pOldBrush);
return TRUE;
}
BOOL EGC_Layer::DrawLayer(CDC * pDC)
{
return TRUE;
}
BOOL EGC_Map::DrawMap(CDC * pDC)
{
return TRUE;
}
BOOL EGC_WorkSpace::DrawWorkSpace(CDC * pDC)
{
return TRUE;
}
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// CEasyGisView printing
BOOL CEasyGisView::OnPreparePrinting(CPrintInfo* pInfo)
{
// default preparation
return DoPreparePrinting(pInfo);
}
void CEasyGisView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add extra initialization before printing
}
void CEasyGisView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add cleanup after printing
}
/////////////////////////////////////////////////////////////////////////////
// CEasyGisView diagnostics
#ifdef _DEBUG
void CEasyGisView::AssertValid() const
{
CView::AssertValid();
}
void CEasyGisView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CEasyGisDoc* CEasyGisView::GetDocument() // non-debug version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CEasyGisDoc)));
return (CEasyGisDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CEasyGisView message handlers
//////////////////////////放大/////////////////////////////////////////////////////////
void CEasyGisView::OnZoomon()
{
// TODO: Add your command handler code here
if(m_ZoomValue>0.1)
{
m_ZoomValue=(m_ZoomValue/1.5);
offset=offset/1.45;
}
else
AfxMessageBox("已经放大十倍了，不能再放大了！");
Invalidate(TRUE);
}
////////////////////////缩小///////////////////////////////////////////////////////////////
void CEasyGisView::OnZoomin()
{
// TODO: Add your command handler code here
if(m_ZoomValue<=6)
{
m_ZoomValue=(m_ZoomValue*1.5);
offset=offset*1.45;
}
else
AfxMessageBox("已经缩小十倍了，不能再缩小了！");
m_ZoomValue= m_ZoomValue;
offset=offset;
Invalidate(TRUE);
}
//////////////////////原始大小//////////////////////////////////////////////////
void CEasyGisView::OnZoomequal()
{
// TODO: Add your command handler code here
m_ZoomValue=m_fangdaxishu=1.11;
offset=1;
m_off.x=0;m_off.y=0;
MakeAllFalse();
Invalidate(TRUE);
}
//////////////////////区域放大//////////////////////////////////////////////////////
void CEasyGisView::OnZoomarea()
{
// TODO: Add your command handler code here
MakeAllFalse();
b_areazoom = TRUE;
b_remove=FALSE;
m_cur_shape = 2;
}
/////////////////////漫游///////////////////////////////////////////////////////////
void CEasyGisView::OnZoommoveon()
{
// TODO: Add your command handler code here
MakeAllFalse();
b_moveon = TRUE;
b_remove=FALSE;
m_cur_shape = 1;
}
void CEasyGisView::OnLButtonDown(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
m_down = point;
if (b_moveon==TRUE) //漫游
{
m_cur_shape = 1;
}
if(b_areazoom == TRUE) //区域缩放
{
b_down = TRUE; //左键按下
}
CView::OnLButtonDown(nFlags, point);
}
void CEasyGisView::OnLButtonUp(UINT nFlags, CPoint point)
{ // TODO: Add your message handler code here and/or call default
m_up = point;
if (b_moveon==TRUE) //漫游
{
m_off.x = m_off.x+m_up.x-m_down.x;
m_off.y = m_off.y+m_up.y-m_down.y;
Invalidate(TRUE);
}
if (b_areazoom == TRUE) //区域放大
{
b_down = FALSE; //左键松开
m_rect.left = (long) (m_up.xm_down.x)?m_up.x:m_down.x;
m_rect.top = (long) (m_up.ym_down.y)?m_up.y:m_down.y;
if (m_rect.IsRectEmpty() == TRUE)
{
return;
}
//实现区域放大缩小算法
//以图像中心为中心缩放
m_rect.left = m_rect.left-m_off.x;
m_rect.right = m_rect.right-m_off.x;
m_rect.top = m_rect.top-m_off.y;
m_rect.bottom = m_rect.bottom-m_off.y;
double selzoom = (1.0*winRect.Height()/m_rect.Height()<1.0*winRect.Width()/1.0*m_rect.Width())?1.0*winRect.Height()/m_rect.Height():winRect.Width()/m_rect.Width();
m_ZoomValue = m_ZoomValue/selzoom;
m_off.x =long (selzoom*(winRect.CenterPoint().x - m_rect.CenterPoint().x)-350);
m_off.y =long (selzoom*(winRect.CenterPoint().y - m_rect.CenterPoint().y)+100);
Invalidate(TRUE);
if(m_ZoomValue<0.1) MessageBox("放大倍数已超过10，请单击正常显示按钮!");
}
CView::OnLButtonUp(nFlags, point);
}
void CEasyGisView::OnMouseMove(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
if(m_cur_shape==1) SetCursor(AfxGetApp()->LoadCursor(IDC_CURSOR1));
//上箭头鼠标---漫游使用
if(m_cur_shape==2) SetCursor(AfxGetApp()->LoadStandardCursor(IDC_CROSS));
//十字箭头
if(m_cur_shape==3) SetCursor(AfxGetApp()->LoadStandardCursor(IDC_ARROW));
//恢复箭头
if(b_areazoom==TRUE && b_down==TRUE) //区域放大
{
CRect rect;
CClientDC dc(this);
CPen pen;
pen.CreatePen(PS_DASH,1,RGB(123,123,0)); //创建画笔
dc.SelectObject(&pen); //选择画笔
long x1,y1,x2,y2;
x1 = (m_down.x>point.x)?m_down.x:point.x; //区域左上点
y1 = (m_down.y0) //鼠标滚轮向上滑实现放大
OnZoomon();
if(zDelta<0)
OnZoomin(); //鼠标滚轮向下滑实现缩小
return CView::OnMouseWheel(nFlags, zDelta, pt);
}
void CEasyGisView::MakeAllFalse()
{
//开关关闭
b_moveon = FALSE;//漫游
b_areazoom = FALSE;//区域放大
b_QuerryLine = FALSE;//线查询
b_QuerryRegion=FALSE;//面查询
}
BOOL CEasyGisView::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
return TRUE;
}
void CEasyGisView::OnUpdateZoommoveon(CCmdUI* pCmdUI)
{
// TODO: Add your command update UI handler code here
pCmdUI->SetCheck(b_moveon == TRUE);
}
void CEasyGisView::OnMoveremove()
{
// TODO: Add your command handler code here
//恢复原尺寸
b_remove=TRUE;
MakeAllFalse();
m_cur_shape = 3;
// OnSetCursor( pWnd, nHitTest, message)
}
void CEasyGisView::OnUpdateMoveremove(CCmdUI* pCmdUI)
{
// TODO: Add your command update UI handler code here
pCmdUI->SetCheck(b_remove==TRUE);
}
void CEasyGisView::OnUpdateZoomarea(CCmdUI* pCmdUI)
{
// TODO: Add your command update UI handler code here
pCmdUI->SetCheck(b_areazoom == TRUE);
}