zoomindlg.cpp

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		bActiveView = FALSE;
		rcDest = CRect(-1,-1,-1,-1);
		COLORREF bkColor=GetSysColor(COLOR_BTNFACE);
		FillSolidRectUser( pDC, clientRect, CRect(0,0,0,0),bkColor);
		pDC->MoveTo(clientRect.left+3,clientRect.bottom-25);
		pDC->LineTo(clientRect.right-3,clientRect.bottom-25);
		return;
	}

	if(pView == NULL) 	return;
	CMYFUSIONDoc* pDoc=(CMYFUSIONDoc *)pView->GetDocument();
	if(pDoc == NULL) 	return;

	if(bpbmpChanged)
	{
		HDIB hDIB;
		hDIB = pDoc->m_hDIB;	
		DocSize=pDoc->m_sizeDoc;

		if(hDIB==NULL)  return;

		if(DIBInMid==CPoint(-1,-1))    return;

		rcDest.top=clientRect.top + 2;
		rcDest.left=clientRect.left + 2;
		rcDest.right=clientRect.right - 2;
		rcDest.bottom=clientRect.bottom - 25;

		rcDIB.top    = DIBInMid.y - (int)( rcDest.Height() / 2.0 / ZoomInZoom + 0.5);
		rcDIB.bottom = DIBInMid.y + (int)( rcDest.Height() / 2.0 / ZoomInZoom + 0.5);
		rcDIB.left   = DIBInMid.x - (int)( rcDest.Width()  / 2.0 / ZoomInZoom + 0.5);
		rcDIB.right  = DIBInMid.x + (int)( rcDest.Width()  / 2.0 / ZoomInZoom + 0.5);

		if(rcDIB.top < 0){
			rcDest.top -= (int)(rcDIB.top * ZoomInZoom + 0.5); 
			rcDIB.top = 0;
		}
		if(rcDIB.left < 0){
			rcDest.left -= (int)(rcDIB.left * ZoomInZoom + 0.5); 
			rcDIB.left = 0;
		}
		if(rcDIB.bottom > DocSize.cy){
			rcDest.bottom -= (int)( (rcDIB.bottom-DocSize.cy) * ZoomInZoom + 0.5); 
			rcDIB.bottom = DocSize.cy;
		}
		if(rcDIB.right > DocSize.cx){
			rcDest.right -= (int)( (rcDIB.right-DocSize.cx) * ZoomInZoom + 0.5); 
			rcDIB.right = DocSize.cx;
		}

		rcDestTheory.left=rcDest.left;
		rcDestTheory.top=rcDest.top;
		rcDestTheory.right=rcDest.left+rcDIB.Width()*ZoomInZoom;
		rcDestTheory.bottom=rcDest.top+rcDIB.Height()*ZoomInZoom;

		//NOTE:we need do some additional adjustment
		if(ZoomInZoom != 1.0){
			rcDIB.top = DocSize.cy - rcDIB.top ;
			rcDIB.bottom = DocSize.cy - rcDIB.bottom ;}				
		rcDIB.NormalizeRect();

		if(pbmp!=NULL)	delete pbmp;
		bmpSize.cx  = clientRect.Width();
		bmpSize.cy  = clientRect.Height()-25;
		CBitmapDC bitmapDC(bmpSize.cx,bmpSize.cy,pDC);
		PaintDIB(bitmapDC.m_hDC, &rcDestTheory, hDIB, &rcDIB, pDoc->m_palDIB );
		COLORREF bkColor=GetSysColor(COLOR_BTNFACE);
		FillSolidRectUser(&bitmapDC, CRect(0,0,bmpSize.cx,bmpSize.cy), rcDestTheory,bkColor);
		pbmp=bitmapDC.Close();

		DrawBitmap(pbmp, pDC, CRect(0,0,bmpSize.cx,bmpSize.cy), CPoint(0,0));

		bpbmpChanged = FALSE;
	}
	else
	{
		DrawBitmap(pbmp, pDC,  CRect(0,0,clientRect.Width()-2,clientRect.Height()-25), CPoint(0,0));

		COLORREF bkColor=GetSysColor(COLOR_BTNFACE);
		FillSolidRectUser(pDC, CRect(0,0,clientRect.Width()+2,clientRect.Height()+25), rcDestTheory,bkColor);
	}

	if(bRedrawControl)
	{
		COLORREF bkColor=GetSysColor(COLOR_BTNFACE);
		pDC->FillSolidRect(CRect(0,clientRect.bottom - 25,clientRect.right,clientRect.bottom),bkColor);
		//draw control
//		m_PointInfo.MoveWindow(62,clientRect.bottom-17,130,15,TRUE);

		bRedrawControl = FALSE;
	}
	//画图象显示区域的基准线
	if(!bIndest)
	{
		CPen Pen1,*pOldPen;
		Pen1.CreatePen(PS_SOLID,1,RGB(255,0,0));
		pOldPen = pDC->SelectObject(&Pen1);
		pDC->MoveTo((int)(clientRect.left+3+clientRect.Width()/2),clientRect.top+1);
		pDC->LineTo((int)(clientRect.left+3+clientRect.Width()/2),clientRect.bottom-25);
		pDC->MoveTo(clientRect.left+2,(int)((clientRect.bottom-25)/2));
		pDC->LineTo(clientRect.right-2,(int)((clientRect.bottom-25)/2));
		pDC->MoveTo((int)(clientRect.left+3+clientRect.Width()/2),
					(int)((clientRect.bottom-25)/2));
		pDC->SelectStockObject(NULL_BRUSH);
		pDC->Ellipse((int)(clientRect.left+3+clientRect.Width()/2)-7, 
					 (int)((clientRect.bottom-25)/2)-7, 
					 (int)(clientRect.left+3+clientRect.Width()/2)+7,
					 (int)((clientRect.bottom-25)/2)+7);
	//	pDC->SetPixel((int)(clientRect.left+3+clientRect.Width()/2),(int)((clientRect.bottom-25)/2),RGB(0,255,0));
		pDC->SelectObject(pOldPen);
		//状态条显示
		double	xZoom,yZoom;		
		xZoom=yZoom=(double)ZoomInZoom;

		CPoint pos;
		pos.x=(int)(clientRect.left+3+clientRect.Width()/2);
		pos.y=(int)((clientRect.bottom-25)/2);

		double lfptDIBOffx,lfptDIBOffy;	//鼠标点在当前图象上的位置			
		lfptDIBOffx = rcDIB.left + (pos.x-rcDestTheory.left-ZoomInZoom/2)/xZoom;
		if(ZoomInZoom == 1.0f)
			lfptDIBOffy = rcDIB.top  + (pos.y-rcDestTheory.top)/yZoom;
		else
			lfptDIBOffy = DocSize.cy - rcDIB.bottom  + (pos.y-rcDestTheory.top-ZoomInZoom/2 )/yZoom;
		CString  str;
		str.Format("X=%.2lf Y=%.2lf",lfptDIBOffx,lfptDIBOffy);
		GetDlgItem(IDC_POINTPOSITION)->SetWindowText(str);
	}

	pDC->MoveTo(clientRect.left+3,clientRect.bottom-25);
	pDC->LineTo(clientRect.right-3,clientRect.bottom-25);
	ReleaseDC(pDC);
}

LRESULT CZoomInDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
	//control the window not too small
	if(message==WM_SIZING)
	{
		LPRECT lpRect=(LPRECT)lParam;
		if(lpRect->right-lpRect->left < ZoomWndWidth )
		{
			if(wParam==WMSZ_LEFT||wParam==WMSZ_BOTTOMLEFT||wParam==WMSZ_TOPLEFT)
				lpRect->left+=(lpRect->right-lpRect->left-ZoomWndWidth);
			if(wParam==WMSZ_RIGHT||wParam==WMSZ_BOTTOMRIGHT||wParam==WMSZ_TOPRIGHT)
				lpRect->right-=(lpRect->right-lpRect->left-ZoomWndWidth);
		}
		if(lpRect->bottom-lpRect->top < ZoomWndHeight )
		{
			if(wParam==WMSZ_TOP||wParam==WMSZ_TOPRIGHT||wParam==WMSZ_TOPLEFT)
				lpRect->top+=(lpRect->bottom-lpRect->top-ZoomWndHeight);
			if(wParam==WMSZ_BOTTOM||wParam==WMSZ_BOTTOMRIGHT||wParam==WMSZ_BOTTOMLEFT)
				lpRect->bottom-=(lpRect->bottom-lpRect->top-ZoomWndHeight);
		}
	}
	//move to default location
	if(message==WM_MOVING)
	{
		LPRECT lpRect=(LPRECT)lParam;
		CMDIFrameWnd* pAppFrame = (CMDIFrameWnd*) AfxGetApp()->m_pMainWnd;
		ASSERT(pAppFrame->IsKindOf(RUNTIME_CLASS( CMDIFrameWnd )));

		CRect rc;
		pAppFrame->GetClientRect(&rc);
		pAppFrame->ClientToScreen(&rc);//Screen Coordinate

		CRect NavRect;
		GetWindowRect(&NavRect);//Screen Coordinate

		CRect DefaultRect;
		DefaultRect.left=rc.right-NavRect.Width()-2;
		DefaultRect.right=DefaultRect.left+NavRect.Width();
		DefaultRect.top=rc.top+(NavWndHeight+50);
		DefaultRect.bottom=DefaultRect.top+NavRect.Height();

		if(abs(DefaultRect.left-lpRect->left)<=5
			&& abs(DefaultRect.right-lpRect->right)<=5
			&& abs(DefaultRect.top-lpRect->top)<=5
			&& abs(DefaultRect.bottom-lpRect->bottom)<=5 )
		{
			lpRect->left=DefaultRect.left;
			lpRect->right=DefaultRect.right;
			lpRect->top=DefaultRect.top;
			lpRect->bottom=DefaultRect.bottom;
		}
	}
	
	return CDialog::WindowProc(message, wParam, lParam);
}

void CZoomInDlg::OnContextMenu(CWnd*, CPoint point)
{
	// CG: This block was added by the Pop-up Menu component
	{
		if (point.x == -1 && point.y == -1){
			//keystroke invocation
			CRect rect;
			GetClientRect(rect);
			ClientToScreen(rect);

			point = rect.TopLeft();
			point.Offset(5, 5);
		}

		CMenu menu;
		VERIFY(menu.LoadMenu(CG_IDR_POPUP_ZOOM_IN_DLG));

		CMenu* pPopup = menu.GetSubMenu(0);
		ASSERT(pPopup != NULL);
		CWnd* pWndPopupOwner = this;

		while (pWndPopupOwner->GetStyle() & WS_CHILD)
			pWndPopupOwner = pWndPopupOwner->GetParent();

		pPopup->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON, point.x, point.y,
			pWndPopupOwner);
	}
}

void CZoomInDlg::OnDefaultSizeZoomIn() 
{
	CRect NavRect;
	GetWindowRect(&NavRect);//Screen Coordinate
	int nFullWidth=::GetSystemMetrics(SM_CXSCREEN);
	int nFullHeight=::GetSystemMetrics(SM_CYSCREEN);
	if( NavRect.left >= nFullWidth-100 || NavRect.top >= nFullHeight-100 )
		SetWindowPos(&(this->wndTop),NavRect.left,NavRect.top,ZoomWndWidth,ZoomWndHeight,SWP_SHOWWINDOW   );//	SWP_NOACTIVATE
	else
		SetWindowPos(&(this->wndTop),NavRect.right-ZoomWndWidth,NavRect.top,ZoomWndWidth,ZoomWndHeight,SWP_SHOWWINDOW   );//	SWP_NOACTIVATE
	//draw control
	CRect clientRect;
	GetClientRect(&clientRect);
	m_ZoomCombo.MoveWindow(3,clientRect.bottom-21,55,15,TRUE);

	bpbmpChanged=TRUE;
	bRedrawControl = TRUE;
	PostMessage(WM_REDRAWZOOMIN);	
}

void CZoomInDlg::OnDefaultLocationZoomIn() 
{
	CMDIFrameWnd* pAppFrame = (CMDIFrameWnd*) AfxGetApp()->m_pMainWnd;
	ASSERT(pAppFrame->IsKindOf(RUNTIME_CLASS( CMDIFrameWnd )));

	CRect rc;
	pAppFrame->GetClientRect(&rc);
	pAppFrame->ClientToScreen(&rc);//Screen Coordinate

	CRect NavRect;
	GetWindowRect(&NavRect);//Screen Coordinate

	CRect DefaultRect;
	DefaultRect.left=rc.right-NavRect.Width()-2;
	DefaultRect.right=DefaultRect.left+NavRect.Width();
	DefaultRect.top=rc.top+(NavWndHeight+50);
	DefaultRect.bottom=DefaultRect.top+NavRect.Height();

	SetWindowPos(&(this->wndTop),DefaultRect.left,DefaultRect.top,DefaultRect.Width(),DefaultRect.Height(),SWP_NOACTIVATE);		
}

void CZoomInDlg::OnHideZoomZInDlg() 
{
	if( (GetStyle() & WS_VISIBLE) != 0)
	{
		ShowWindow(SW_HIDE);
	}	
}

void CZoomInDlg::OnSize(UINT nType, int cx, int cy) 
{
	CDialog::OnSize(nType, cx, cy);
	if(bInit)
		bInit = FALSE;
	else{
		bRedrawControl = TRUE;
		m_ZoomCombo.MoveWindow(3,cy-21,55,15,TRUE);
		PostMessage(WM_REDRAWZOOMIN);
	}
}

void CZoomInDlg::OnLButtonDown(UINT nFlags, CPoint point) 
{
	if(pView == NULL)
		return;
	if(rcDestTheory.PtInRect(point))
	{
		if(NormalStatus == IMAGE_MEASURE)
		{
			bMoveWithMouse=TRUE;
			//选点

			CMainFrame* pAppFrame = (CMainFrame*) AfxGetApp()->m_pMainWnd;

			double	xZoom,yZoom;		
			xZoom=yZoom=(double)ZoomInZoom;

			double lfptDIBOffx,lfptDIBOffy;	//鼠标点在当前图象上的位置			
			lfptDIBOffx = rcDIB.left + (point.x-rcDestTheory.left-ZoomInZoom/2)/xZoom;
			if(ZoomInZoom == 1.0f)
				lfptDIBOffy = rcDIB.top  + (point.y-rcDestTheory.top)/yZoom;
			else
				lfptDIBOffy = DocSize.cy - rcDIB.bottom  + (point.y-rcDestTheory.top-ZoomInZoom/2 )/yZoom;

	    	lfptDIBMousex = lfptDIBOffx;
			lfptDIBMousey = lfptDIBOffy;
	//		if(pAppFrame->PickPointDlg)
	//			pAppFrame->PickPointDlg->SendMessage(WM_PICK_POINT);
		}
	}
	
	CDialog::OnLButtonDown(nFlags, point);
}
void CZoomInDlg::OnMouseMove(UINT nFlags, CPoint point) 
{
	if(pView == NULL)
		return;
	CString str;
	if(rcDestTheory.PtInRect(point))
	{
		bIndest = TRUE;
		RedrawZoomIn();
		//画图象显示区域的基准线
		CDC * pDC = GetDC();
		CRect clientRect;
	    GetClientRect(&clientRect);
		CPen Pen1,*pOldPen;
		Pen1.CreatePen(PS_SOLID,1,RGB(255,0,0));
		pOldPen = pDC->SelectObject(&Pen1);
		pDC->MoveTo(point.x,clientRect.top);
		pDC->LineTo(point.x,clientRect.bottom-25);
		pDC->MoveTo(clientRect.left+2,point.y);
		pDC->LineTo(clientRect.right-2,point.y);
		pDC->MoveTo(point.x,point.y);
		pDC->SelectStockObject(NULL_BRUSH);
		pDC->Ellipse(point.x-7, point.y-7, point.x+7,point.y+7);
		/////////////////////////////////
		double	xZoom,yZoom;		
		xZoom=yZoom=(double)ZoomInZoom;

		double lfptDIBOffx,lfptDIBOffy;	//鼠标点在当前图象上的位置			
		lfptDIBOffx = rcDIB.left + (point.x-rcDestTheory.left-ZoomInZoom/2)/xZoom;
		if(ZoomInZoom == 1.0f)
			lfptDIBOffy = rcDIB.top  + (point.y-rcDestTheory.top)/yZoom;
		else
			lfptDIBOffy = DocSize.cy - rcDIB.bottom  + (point.y-rcDestTheory.top-ZoomInZoom/2 )/yZoom;
		str.Format("X=%.2lf Y=%.2lf",lfptDIBOffx,lfptDIBOffy);
	}
	else{
		bIndest = FALSE;
		str.Format("像素坐标");
		Invalidate(0);
	}

	GetDlgItem(IDC_POINTPOSITION)->SetWindowText(str);

	CDialog::OnMouseMove(nFlags, point);
}
void CZoomInDlg::OnLButtonUp(UINT nFlags, CPoint point) 
{	
	CDialog::OnLButtonUp(nFlags, point);
}

BOOL CZoomInDlg::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) 
{
 	if (nHitTest == HTCLIENT && bIndest)
	{
		::SetCursor(m_ImageMeasure);
		return 0;
	}

	return CDialog::OnSetCursor(pWnd, nHitTest, message);
}

void CZoomInDlg::OnSelchangeZoomCombo() 
{
	ZoomInZoom=m_ZoomCombo.GetCurSel()+1;
	bEditChanged= FALSE;

	bpbmpChanged=TRUE;
	bRedrawControl=TRUE;
	PostMessage(WM_REDRAWZOOMIN);
}

void CZoomInDlg::OnEditchangeZoomCombo() 
{
	bEditChanged= TRUE;
}