www.gusucode.com > 学习VC++的一些小实例源码程序 > 学习VC++的一些小实例(界面、游戏、简单图形处理、算法、数据库操作)源码程序/code/sample/ch05/Mdiapp/MDIview.cpp
//Download by http://www.NewXing.com // MDIView.cpp : implementation of the CMDIAppView class // #include "stdafx.h" #include "MDIApp.h" #include "MDIDoc.h" #include "MDIView.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CMDIAppView IMPLEMENT_DYNCREATE(CMDIAppView, CView) BEGIN_MESSAGE_MAP(CMDIAppView, CView) //{{AFX_MSG_MAP(CMDIAppView) //}}AFX_MSG_MAP // Standard printing commands ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview) ON_COMMAND_RANGE(ID_COLORS_BLACK, ID_COLORS_BLUE, OnColors) ON_UPDATE_COMMAND_UI_RANGE(ID_COLORS_BLACK, ID_COLORS_BLUE, OnUpdateColors) END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CMDIAppView construction/destruction CMDIAppView::CMDIAppView() { } CMDIAppView::~CMDIAppView() { } BOOL CMDIAppView::PreCreateWindow(CREATESTRUCT& cs) { return CView::PreCreateWindow(cs); } ///////////////////////////////////////////////////////////////////////////// // CMDIAppView drawing void CMDIAppView::OnDraw(CDC* pDC) { CMDIAppDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); CRect r; GetClientRect(&r); int x = r.right / 2, y = r.bottom / 2; pDC->SetTextColor(pDoc->GetColor()); pDC->SetTextAlign (TA_CENTER | TA_BASELINE); pDC->TextOut (x, y, pDoc->GetPhrase()); } ///////////////////////////////////////////////////////////////////////////// // CMDIAppView printing BOOL CMDIAppView::OnPreparePrinting(CPrintInfo* pInfo) { // default preparation return DoPreparePrinting(pInfo); } void CMDIAppView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: add extra initialization before printing } void CMDIAppView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: add cleanup after printing } ///////////////////////////////////////////////////////////////////////////// // CMDIAppView diagnostics #ifdef _DEBUG void CMDIAppView::AssertValid() const { CView::AssertValid(); } void CMDIAppView::Dump(CDumpContext& dc) const { CView::Dump(dc); } CMDIAppDoc* CMDIAppView::GetDocument() // non-debug version is inline { ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMDIAppDoc))); return (CMDIAppDoc*)m_pDocument; } #endif //_DEBUG ///////////////////////////////////////////////////////////////////////////// // CMDIAppView message handlers void CMDIAppView::OnColors(UINT nID) { CMDIAppDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); pDoc->SetColor(IDtoColorRef(nID)); // If this were an SDI app then you'd call // Invalidate(); // Since it's an MDI app, you have to call pDoc->UpdateAllViews(NULL); } void CMDIAppView::OnUpdateColors(CCmdUI* pCmdUI) { CMDIAppDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); pCmdUI->SetCheck(pDoc->GetColor() == IDtoColorRef(pCmdUI->m_nID)); } const COLORREF BLACK=RGB(0,0,0); const COLORREF RED=RGB(255,0,0); const COLORREF GREEN=RGB(0,255,0); const COLORREF BLUE=RGB(0,0,255); // This function converts one of the 4 Command IDs to a COLORREF value. COLORREF CMDIAppView::IDtoColorRef(int nID) { switch (nID) { case ID_COLORS_RED: return RED; case ID_COLORS_GREEN: return GREEN; case ID_COLORS_BLUE: return BLUE; default: return BLACK; } }