mnistview.cpp

基于神经网络的手写体识别程序

// MNistView.cpp : implementation of the CMNistView class
//

#include "stdafx.h"
#include "MNist.h"

#include "MNistDoc.h"
#include "CntrItem.h"
#include "MNistView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMNistView

IMPLEMENT_DYNCREATE(CMNistView, CFormView)

BEGIN_MESSAGE_MAP(CMNistView, CFormView)
	//{{AFX_MSG_MAP(CMNistView)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	ON_WM_DESTROY()
	ON_WM_SETFOCUS()
	ON_WM_SIZE()
	ON_COMMAND(ID_OLE_INSERT_NEW, OnInsertObject)
	ON_COMMAND(ID_CANCEL_EDIT_CNTR, OnCancelEditCntr)
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CMNistView construction/destruction

CMNistView::CMNistView()
	: CFormView(CMNistView::IDD)
{
	//{{AFX_DATA_INIT(CMNistView)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_pSelection = NULL;
	// TODO: add construction code here

}

CMNistView::~CMNistView()
{
}

void CMNistView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMNistView)
	DDX_Control(pDX, IDC_TAB1, m_ctlTabbedControlPanel);
	//}}AFX_DATA_MAP
}

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

	return CFormView::PreCreateWindow(cs);
}

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

	m_resizeHelper.Init( m_hWnd );
//	m_resizeHelper.Fix( IDC_EDIT1, DlgResizeHelper::kNoHFix /* DlgResizeHelper::kLeft */, DlgResizeHelper::kHeight );


	// TODO: remove this code when final selection model code is written
	m_pSelection = NULL;    // initialize selection

}

/////////////////////////////////////////////////////////////////////////////
// CMNistView printing

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

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

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

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

void CMNistView::OnDestroy()
{
	// Deactivate the item on destruction; this is important
	// when a splitter view is being used.
   CFormView::OnDestroy();
   COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
   if (pActiveItem != NULL && pActiveItem->GetActiveView() == this)
   {
      pActiveItem->Deactivate();
      ASSERT(GetDocument()->GetInPlaceActiveItem(this) == NULL);
   }
}


/////////////////////////////////////////////////////////////////////////////
// OLE Client support and commands

BOOL CMNistView::IsSelected(const CObject* pDocItem) const
{
	// The implementation below is adequate if your selection consists of
	//  only CMNistCntrItem objects.  To handle different selection
	//  mechanisms, the implementation here should be replaced.

	// TODO: implement this function that tests for a selected OLE client item

	return pDocItem == m_pSelection;
}

void CMNistView::OnInsertObject()
{
	// Invoke the standard Insert Object dialog box to obtain information
	//  for new CMNistCntrItem object.
	COleInsertDialog dlg;
	if (dlg.DoModal() != IDOK)
		return;

	BeginWaitCursor();

	CMNistCntrItem* pItem = NULL;
	TRY
	{
		// Create new item connected to this document.
		CMNistDoc* pDoc = GetDocument();
		ASSERT_VALID(pDoc);
		pItem = new CMNistCntrItem(pDoc);
		ASSERT_VALID(pItem);

		// Initialize the item from the dialog data.
		if (!dlg.CreateItem(pItem))
			AfxThrowMemoryException();  // any exception will do
		ASSERT_VALID(pItem);
		
        if (dlg.GetSelectionType() == COleInsertDialog::createNewItem)
			pItem->DoVerb(OLEIVERB_SHOW, this);

		ASSERT_VALID(pItem);

		// As an arbitrary user interface design, this sets the selection
		//  to the last item inserted.

		// TODO: reimplement selection as appropriate for your application

		m_pSelection = pItem;   // set selection to last inserted item
		pDoc->UpdateAllViews(NULL);
	}
	CATCH(CException, e)
	{
		if (pItem != NULL)
		{
			ASSERT_VALID(pItem);
			pItem->Delete();
		}
		AfxMessageBox(IDP_FAILED_TO_CREATE);
	}
	END_CATCH

	EndWaitCursor();
}

// The following command handler provides the standard keyboard
//  user interface to cancel an in-place editing session.  Here,
//  the container (not the server) causes the deactivation.
void CMNistView::OnCancelEditCntr()
{
	// Close any in-place active item on this view.
	COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
	if (pActiveItem != NULL)
	{
		pActiveItem->Close();
	}
	ASSERT(GetDocument()->GetInPlaceActiveItem(this) == NULL);
}

// Special handling of OnSetFocus and OnSize are required for a container
//  when an object is being edited in-place.
void CMNistView::OnSetFocus(CWnd* pOldWnd)
{
	COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
	if (pActiveItem != NULL &&
		pActiveItem->GetItemState() == COleClientItem::activeUIState)
	{
		// need to set focus to this item if it is in the same view
		CWnd* pWnd = pActiveItem->GetInPlaceWindow();
		if (pWnd != NULL)
		{
			pWnd->SetFocus();   // don't call the base class
			return;
		}
	}

	CFormView::OnSetFocus(pOldWnd);
}

void CMNistView::OnSize(UINT nType, int cx, int cy)
{
	CFormView::OnSize(nType, cx, cy);
	COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
	if (pActiveItem != NULL)
		pActiveItem->SetItemRects();

	// TODO: Add your message handler code here
	
	m_resizeHelper.OnSize();


}

/////////////////////////////////////////////////////////////////////////////
// CMNistView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CMNistView message handlers



BOOL CMNistView::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext) 
{
	// TODO: Add your specialized code here and/or call the base class

	// intercept the framework's call to create (via virtual Create() function) to
	// set the documnet pointer for the child tab control window object

	CMNistDoc* pDoc = static_cast< CMNistDoc* >( pContext->m_pCurrentDoc );
	ASSERT( pDoc != NULL );

	m_ctlTabbedControlPanel.m_pDoc = pDoc;

	
	return CFormView::Create(lpszClassName, lpszWindowName, dwStyle, rect, pParentWnd, nID, pContext);
}