ex07avw.cpp

VC++技术内幕(第四版)的实例

// ex07avw.cpp : implementation of the CEx07aView class
//

#include "stdafx.h"
#include "ex07a.h"

#include "ex07adoc.h"
#include "ex07avw.h"
#include "ex07adlg.h"

#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CEx07aView

IMPLEMENT_DYNCREATE(CEx07aView, CView)

BEGIN_MESSAGE_MAP(CEx07aView, CView)
    //{{AFX_MSG_MAP(CEx07aView)
    ON_WM_LBUTTONDOWN()
    ON_WM_RBUTTONDOWN()
    //}}AFX_MSG_MAP
    ON_MESSAGE(WM_GOODBYE, OnGoodbye)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CEx07aView construction/destruction

CEx07aView::CEx07aView()
{
    m_pDlg = new CEx07aDialog(this);
}

CEx07aView::~CEx07aView()
{
    delete m_pDlg; // destroys window if not already destroyed
}

/////////////////////////////////////////////////////////////////////////////
// CEx07aView drawing

void CEx07aView::OnDraw(CDC* pDC)
{
    pDC->TextOut(0, 0, "Press the left mouse button here.");
}



/////////////////////////////////////////////////////////////////////////////
// CEx07aView diagnostics

#ifdef _DEBUG
void CEx07aView::AssertValid() const
{
    CView::AssertValid();
}

void CEx07aView::Dump(CDumpContext& dc) const
{
    CView::Dump(dc);
}

CEx07aDoc* CEx07aView::GetDocument() // non-debug version is inline
{
    ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CEx07aDoc)));
    return (CEx07aDoc*) m_pDocument;
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CEx07aView message handlers

void CEx07aView::OnLButtonDown(UINT nFlags, CPoint point)
{
    // creates the dialog if not already created
    if (m_pDlg->GetSafeHwnd() == 0) {
      m_pDlg->Create(); // displays the dialog window
    }
}

void CEx07aView::OnRButtonDown(UINT nFlags, CPoint point)
{
    m_pDlg->DestroyWindow();
    // no problem if window was already destroyed
}

long CEx07aView::OnGoodbye(UINT wParam, LONG lParam)
{
  // message received in response to modeless dialog OK
  //  and Cancel buttons
  TRACE("CEx07aView::OnGoodbye %x, %lx\n", wParam, lParam);
  TRACE("Dialog edit1 contents = %s\n", (const char*) m_pDlg->m_edit1);
  m_pDlg->DestroyWindow();
  return 0L;
}