femmviewview.cpp

一个2D电磁场FEM计算的VC++源程序

	
	if (EditAction==1){
		CComplex z;
		int i;
		CFemmviewDoc *pDoc=GetDocument();
		z.Set(mx,my);
		i=pDoc->contour.GetSize();
		if(i>0){
			if (z!=pDoc->contour[i-1])
				pDoc->contour.Add(z);
		}
		else pDoc->contour.Add(z);
		DrawUserContour(FALSE);
	}
	
	CView::OnRButtonDown(nFlags, point);
}

void CFemmviewView::OnEditCopyAsMetafile() 
{
    // puts a metafile drawing of the screen on the clipboard
    CMetaFileDC Meta;
    RECT r;
    CRgn R;

    Meta.CreateEnhanced(NULL,NULL,NULL,NULL);
    GetClientRect(&r);
    R.CreateRectRgnIndirect(&r);
    Meta.SelectClipRgn(&R);
    OnDraw(&Meta);
    HENHMETAFILE hMeta=Meta.CloseEnhanced();

    OpenClipboard();
    EmptyClipboard();
    SetClipboardData(CF_ENHMETAFILE,hMeta);
    CloseClipboard();
    
}

void CFemmviewView::OnEditCopy() 
{
    // puts a bitmap of the screen on the clipboard
    RECT r;
    CDC tempDC;
    CBitmap bitmap;
    CDC *pDC=GetDC();

    GetClientRect(&r);
    tempDC.CreateCompatibleDC(pDC);
    bitmap.CreateCompatibleBitmap(pDC, r.right, r.bottom);
    tempDC.SelectObject(&bitmap);

    tempDC.BitBlt(0, 0, r.right, r.bottom, pDC, 0, 0, SRCCOPY);

    OpenClipboard();
    EmptyClipboard();
    SetClipboardData(CF_BITMAP, HBITMAP(bitmap));
    CloseClipboard();
}

void CFemmviewView::OnReload() 
{
	CFemmviewDoc *pDoc=GetDocument();
	BeginWaitCursor();
	pDoc->OnReload();
	EndWaitCursor();
	if (d_ResetOnReload==FALSE) pDoc->FirstDraw=FALSE;
	RedrawView();
}

void CFemmviewView::OnMenuArea() 
{
	CFemmviewDoc *pDoc=GetDocument();
	if(EditAction==1){
		EraseUserContour(TRUE);
		pDoc->contour.RemoveAll();
	}
	EditAction=2;

	// update check boxes in the main menu...
	CMainFrame *MFrm;
	MFrm=(CMainFrame *)GetParentFrame();
	CMenu* MMnu=MFrm->GetMenu();
	CToolBar *pToolBar;
	pToolBar=&MFrm->m_toolBar;    
	CToolBarCtrl *tc=&pToolBar->GetToolBarCtrl();
	
	MMnu->CheckMenuItem(ID_MENU_AREA, MF_CHECKED);
	MMnu->CheckMenuItem(ID_MENU_CONTOUR, MF_UNCHECKED);
	MMnu->CheckMenuItem(ID_MENU_POINT, MF_UNCHECKED);
	tc->CheckButton(ID_MENU_AREA, TRUE);
	tc->CheckButton(ID_MENU_CONTOUR, FALSE);
	tc->CheckButton(ID_MENU_POINT, FALSE);
}

void CFemmviewView::OnMenushowpts() 
{
	CFrameWnd *MFrm;
	MFrm=GetParentFrame();
	CMenu* MMnu=MFrm->GetMenu();

	if(PtsFlag==FALSE){
		PtsFlag=TRUE;
		MMnu->CheckMenuItem(ID_MENUSHOWPTS, MF_CHECKED);
	}
	else{
		PtsFlag=FALSE;
		MMnu->CheckMenuItem(ID_MENUSHOWPTS, MF_UNCHECKED);
	}
	RedrawView();
}

void CFemmviewView::OnMenuContour() 
{
	CFemmviewDoc *pDoc=GetDocument();

	if(EditAction==2){
		int i;
		BOOL flg=FALSE;
		pDoc->bHasMask=FALSE;
		for(i=0;i<pDoc->blocklist.GetSize();i++){
			if (pDoc->blocklist[i].IsSelected==TRUE){
				pDoc->blocklist[i].IsSelected=FALSE;
				flg=TRUE;
			}
		}
		
		if(flg==TRUE) RedrawView();
	}

	EditAction=1;
	

	CMainFrame *MFrm;
	MFrm=(CMainFrame *)GetParentFrame();
	CMenu* MMnu=MFrm->GetMenu();
	CToolBar *pToolBar;
	pToolBar=&MFrm->m_toolBar;    
	CToolBarCtrl *tc=&pToolBar->GetToolBarCtrl();
	
	MMnu->CheckMenuItem(ID_MENU_AREA, MF_UNCHECKED);
	MMnu->CheckMenuItem(ID_MENU_CONTOUR, MF_CHECKED);
	MMnu->CheckMenuItem(ID_MENU_POINT, MF_UNCHECKED);
	tc->CheckButton(ID_MENU_AREA, FALSE);
	tc->CheckButton(ID_MENU_CONTOUR, TRUE);
	tc->CheckButton(ID_MENU_POINT, FALSE);
}

void CFemmviewView::OnMenuPoint() 
{
	CFemmviewDoc *pDoc=GetDocument();

	if (EditAction==1){
		EraseUserContour(TRUE);
		pDoc->contour.RemoveAll();
	}
	if (EditAction==2){
		int i;
		BOOL flg=FALSE;
		pDoc->bHasMask=FALSE;
		for(i=0;i<pDoc->blocklist.GetSize();i++){
			if (pDoc->blocklist[i].IsSelected==TRUE){
				pDoc->blocklist[i].IsSelected=FALSE;
				flg=TRUE;
			}
		}
		
		if(flg==TRUE) RedrawView();
	}
	
	EditAction=0;

	// update check boxes in the main menu...
	CMainFrame *MFrm;
	MFrm=(CMainFrame *)GetParentFrame();
	CMenu* MMnu=MFrm->GetMenu();
	CToolBar *pToolBar;
	pToolBar=&MFrm->m_toolBar;    
	CToolBarCtrl *tc=&pToolBar->GetToolBarCtrl();
	
	MMnu->CheckMenuItem(ID_MENU_AREA, MF_UNCHECKED);
	MMnu->CheckMenuItem(ID_MENU_CONTOUR, MF_UNCHECKED);
	MMnu->CheckMenuItem(ID_MENU_POINT, MF_CHECKED);
	tc->CheckButton(ID_MENU_AREA, FALSE);
	tc->CheckButton(ID_MENU_CONTOUR, FALSE);
	tc->CheckButton(ID_MENU_POINT, TRUE);
	
}

void CFemmviewView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	CFemmviewDoc *pDoc=GetDocument();

	if (nChar==VK_LEFT)  OnPanLeft();
	if (nChar==VK_RIGHT) OnPanRight();
	if (nChar==VK_UP)    OnPanUp();   
	if (nChar==VK_DOWN)  OnPanDown();
	if (nChar==VK_PRIOR) OnZoomIn();	// page up
	if (nChar==VK_NEXT)  OnZoomOut();	// page down
	if (nChar==VK_HOME)  OnZoomNatural();

	if ((nChar==VK_TAB) && (EditAction!=2))	EnterPoint();

	if ((nChar==VK_DELETE) && (EditAction==1)){
		int k;
		k=pDoc->contour.GetSize();

		if(k>1){
			EraseUserContour(FALSE);
			pDoc->contour.RemoveAt(k-1);
			DrawUserContour(TRUE);
		} 
		else if(k!=0){
			EraseUserContour(TRUE);
			pDoc->contour.RemoveAt(0);
		}
	}

	if ((nChar==VK_ESCAPE) && (EditAction==1)){
		EraseUserContour(TRUE);
		pDoc->contour.RemoveAll();
	}

	if ((nChar==VK_SHIFT) && (EditAction==1)){
		if(pDoc->contour.GetSize()>1)
		{
			CBendContourDlg dlg;
			dlg.DoModal();
			if (dlg.m_angle!=0){
				EraseUserContour(FALSE);
				pDoc->BendContour(dlg.m_angle,dlg.m_anglestep);
				DrawUserContour(TRUE); 
			}
		}
	}

	if ((nChar==VK_ESCAPE) && (EditAction==2)){
		BOOL flg=FALSE;
		int i;
		
		for(i=0;i<pDoc->blocklist.GetSize();i++)
		{
			if(pDoc->blocklist[i].IsSelected==TRUE)
			{
				flg=TRUE;
				pDoc->blocklist[i].IsSelected=FALSE;
			}
		}
		
		if (flg==TRUE) RedrawView();
		
	}

	CView::OnKeyDown(nChar, nRepCnt, nFlags);
}


void CFemmviewView::EnterPoint()
{
	CGetPoint pDlg;
	double x,y,t;
	CFemmviewDoc* pDoc = GetDocument();

	// Send present parameter values to the dialog
	// pDlg.m_rji=TheDoc->vi[0];

	if(pDoc->Coords==FALSE){
		pDlg.m_coord1 = mx;
		pDlg.m_coord2 = my;
		if(pDoc->ProblemType==0){
			pDlg.m_label1 = "x-coord";
			pDlg.m_label2 = "y-coord";
		}
		else{
			pDlg.m_label1 = "r-coord";
			pDlg.m_label2 = "z-coord";
		}
	}
	else{
		pDlg.m_coord1=sqrt(mx*mx+my*my);
		pDlg.m_coord2=atan2(my,mx)*180/PI;
		pDlg.m_label1="radius";
		pDlg.m_label2="degrees";
	}
	
	// Display dialog and collect data
	if(pDlg.DoModal()==IDOK)
	{
		if(pDoc->Coords==FALSE){
			x=pDlg.m_coord1;
			y=pDlg.m_coord2;
		}
		else{
			t=pDlg.m_coord2*PI/180;
			x=pDlg.m_coord1*cos(t);
			y=pDlg.m_coord1*sin(t);
		}
		if (EditAction==0) DisplayPointProperties(x,y);
		if (EditAction==1){
			CComplex z;
			z.Set(x,y);
			pDoc->contour.Add(z);
			DrawUserContour(FALSE);
		}
	}
}

void CFemmviewView::SpecialLine(CDC *pDC, int X0, int Y0, int X1, int Y1, int flag)
{
    double l;
    int i,j,k,p,x,y,z;
    int hi,lo,zj;
    BOOL InLine,DrawIt;
    COLORREF c;
    COLORREF Red;
    RECT r;
       
    GetClientRect(&r);
    Red=SelColor;

    int x0,y0,x1,y1,xb,yb;
   
    x0=X0;    y0=Y0;   
    x1=X1;    y1=Y1;
    xb=r.right;
    yb=r.bottom;
    DrawIt=TRUE;

    // test to see if any of the endpoints are offscreen.
    // if they are, crop them to the screen size
    if ((x0<0) || (x0>xb) || (x1<0) || (x1>xb) ||
        (y0<0) || (y0>yb) || (y1<0) || (y1>yb))
    {
        DrawIt=FALSE;
        double z,dx0,dx1,dy0,dy1,dxb,dyb;
        dx0=(double) x0;
        dy0=(double) y0;
        dx1=(double) x1;
        dy1=(double) y1;
        dxb=(double) xb;
        dyb=(double) yb;

       
        if ((x1-x0)!=0)
        {
            // test left side;
            z=(-dx0)/(dx1-dx0);
            if ((z>=0.) && (z<=1.))
            {
                DrawIt=TRUE;
                if(x0<0)
                {
                    dx0=0;
                    x0=0;
                    dy0=dy0+z*(dy1-dy0);
                    y0=(int) dy0;
                }
                else{
                    dx1=0;
                    x1=0;
                    dy1=dy0+z*(dy1-dy0);
                    y1=(int) dy1;
                }
            }

            // test right side;
            z=(dxb-dx0)/(dx1-dx0);
            if ((z>=0.) && (z<=1.))
            {
                DrawIt=TRUE;
                if(x0>xb)
                {
                    dx0=dxb;
                    x0=xb;
                    dy0=dy0+z*(dy1-dy0);
                    y0=(int) dy0;
                }
                else{
                    dx1=dxb;
                    x1=xb;
                    dy1=dy0+z*(dy1-dy0);
                    y1=(int) dy1;
                }
            }

        }

        if ((y1-y0)!=0)
        {
            // test top side;
            z=(-dy0)/(dy1-dy0);
            if ((z>=0.) && (z<=1.))
            {
                DrawIt=TRUE;
                if(y0<0)
                {
                    dy0=0;
                    y0=0;
                    dx0=dx0+z*(dx1-dx0);
                    x0=(int) dx0;
                }
                else{
                    dy1=0;
                    y1=0;
                    dx1=dx0+z*(dx1-dx0);
                    x1=(int) dx1;
                }
            }

            // test bottom side;
            z=(dyb-dy0)/(dy1-dy0);
            if ((z>=0.) && (z<=1.))
            {
                DrawIt=TRUE;
                if(y0>dyb)
                {
                    dy0=dyb;
                    y0=yb;
                    dx0=dx0+z*(dx1-dx0);
                    x0=(int) dx0;
                }
                else{
                    dy1=dyb;
                    y1=yb;
                    dx1=dx0+z*(dx1-dx0);
                    x1=(int) dx1;
                }
            }
        }
    }

    if(!DrawIt) return;

    l=(double)((x1-x0)*(x1-x0) + (y1-y0)*(y1-y0));
    l=sqrt(l);
    k=(int) l;
    for(i=0;i<=k;i++)
    {
        if(k!=0){
            x=x0+((x1-x0)*i)/k;
            y=y0+((y1-y0)*i)/k;
        }
        else{
            x=x0;
            y=y0;
        }
       
        z=x+y*r.right;

        // check if this point is already in the line
        // in the case that a red line is supposed to be drawn;
   
        if(flag==FALSE)
        {
            // bisection search to see if the pixel under
            // consideration is already in LinePix
            InLine=FALSE;
            lo=0;
            hi=LinePix.GetSize()-1;
            if(hi>=0){
                zj=LinePix[0].z;
                if(z<=zj){
                    hi=0;
                    if(z==zj) InLine=TRUE;
                }
                zj=LinePix[hi].z;
                if(z>=zj){
                    hi+=1;
                    lo=hi;
                    if(z==zj) InLine=TRUE;
                }
                while((hi-lo)>1){
                    j=(lo+hi)/2;
                    zj=LinePix[j].z;
                    if(zj==z){
                        InLine=TRUE;
                        break;
                    }
                    else if(zj<z) lo=j;
                         else hi=j;
                }
            }
            else hi=0;
       
            if(InLine==FALSE){
                CPixel NewPixel;
                NewPixel.z=z;
                NewPixel.c=pDC->GetPixel(x,y);
                if (hi==LinePix.GetSize()) LinePix.Add(NewPixel);
                else LinePix.InsertAt(hi,NewPixel);
            }
        }
       
        // if line is to be erased, get entry out of the pixel list
        if(flag!=FALSE){
            // bisection search to find the pixel
            InLine=FALSE;
            lo=0;
            hi=LinePix.GetSize()-1;
            if(hi>=0){
                zj=LinePix[0].z;
                if(z<=zj){
                    hi=0;
                    if(z==zj){
                        InLine=TRUE;
                        p=0