www.gusucode.com > VC++ MyScroll窗体滚动条应用实例-源码程序 > VC++ MyScroll窗体滚动条应用实例-源码程序/code/MyScrollView.cpp
// MyScrollView.cpp : implementation of the CMyScrollView class // Download by http://www.NewXing.com #include "stdafx.h" #include "MyScroll.h" #include "MyScrollDoc.h" #include "MyScrollView.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CMyScrollView IMPLEMENT_DYNCREATE(CMyScrollView, CScrollView) BEGIN_MESSAGE_MAP(CMyScrollView, CScrollView) //{{AFX_MSG_MAP(CMyScrollView) ON_WM_LBUTTONDOWN() //}}AFX_MSG_MAP // Standard printing commands ON_COMMAND(ID_FILE_PRINT, CScrollView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_DIRECT, CScrollView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_PREVIEW, CScrollView::OnFilePrintPreview) END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CMyScrollView construction/destruction CMyScrollView::CMyScrollView() { // TODO: add construction code here } CMyScrollView::~CMyScrollView() { } BOOL CMyScrollView::PreCreateWindow(CREATESTRUCT& cs) { // TODO: Modify the Window class or styles here by modifying // the CREATESTRUCT cs return CScrollView::PreCreateWindow(cs); } ///////////////////////////////////////////////////////////////////////////// // CMyScrollView drawing void CMyScrollView::OnDraw(CDC* pDC) { CMyScrollDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); pDC->TextOut(30,30,"welcome to VC++"); // TODO: add draw code for native data here } void CMyScrollView::OnInitialUpdate() { CScrollView::OnInitialUpdate(); CSize sizeTotal; // TODO: calculate the total size of this view sizeTotal.cx = sizeTotal.cy = 300; SetScrollSizes(MM_TEXT, sizeTotal); // GetParentFrame()->RecalcLayout(); ResizeParentToFit(); } ///////////////////////////////////////////////////////////////////////////// // CMyScrollView printing BOOL CMyScrollView::OnPreparePrinting(CPrintInfo* pInfo) { // default preparation return DoPreparePrinting(pInfo); } void CMyScrollView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: add extra initialization before printing } void CMyScrollView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: add cleanup after printing } ///////////////////////////////////////////////////////////////////////////// // CMyScrollView diagnostics #ifdef _DEBUG void CMyScrollView::AssertValid() const { CScrollView::AssertValid(); } void CMyScrollView::Dump(CDumpContext& dc) const { CScrollView::Dump(dc); } CMyScrollDoc* CMyScrollView::GetDocument() // non-debug version is inline { ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyScrollDoc))); return (CMyScrollDoc*)m_pDocument; } #endif //_DEBUG ///////////////////////////////////////////////////////////////////////////// // CMyScrollView message handlers void CMyScrollView::OnLButtonDown(UINT nFlags, CPoint point) { // TODO: Add your message handler code here and/or call default GetParentFrame()->RecalcLayout(); // ResizeParentToFit(); Invalidate(); CScrollView::OnLButtonDown(nFlags, point); }