MFC Windows 程序设计之彩色字体对话框

// ColorDlg.cpp : implementation file // #include "stdafx.h" #include "Color.h" #include "ColorDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CAboutDlg dialog used for App About class CAboutDlg : public CDialog { public: CAboutDlg(); // Dialog Data //{{AFX_DATA(CAboutDlg) enum { IDD = IDD_ABOUTBOX }; //}}AFX_DATA // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CAboutDlg) protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support //}}AFX_VIRTUAL // Implementation protected: //{{AFX_MSG(CAboutDlg) //}}AFX_MSG DECLARE_MESSAGE_MAP() }; CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) { //{{AFX_DATA_INIT(CAboutDlg) //}}AFX_DATA_INIT } void CAboutDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CAboutDlg) //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) //{{AFX_MSG_MAP(CAboutDlg) // No message handlers //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CColorDlg dialog CColorDlg::CColorDlg(CWnd* pParent /*=NULL*/) : CDialog(CColorDlg::IDD, pParent) { //{{AFX_DATA_INIT(CColorDlg) m_strMessage = _T(""); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CColorDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CColorDlg) DDX_Control(pDX, IDC_ALLMSG, m_ctlAllMsg); DDX_Text(pDX, IDC_MESSAGE, m_strMessage); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CColorDlg, CDialog) //{{AFX_MSG_MAP(CColorDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_ENTER, OnEnter) ON_WM_CTLCOLOR() ON_BN_CLICKED(IDC_CHANGEFONT, OnChangeFont) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CColorDlg message handlers BOOL CColorDlg::OnInitDialog() { CDialog::OnInitDialog(); // Add "About..." menu item to system menu. // IDM_ABOUTBOX must be in the system command range. ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE); if (pSysMenu != NULL) { CString strAboutMenu; strAboutMenu.LoadString(IDS_ABOUTBOX); if (!strAboutMenu.IsEmpty()) { pSysMenu->AppendMenu(MF_SEPARATOR); pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); } } // Set the icon for this dialog. The framework does this automatically // when the application's main window is not a dialog SetIcon(m_hIcon, TRUE); // Set big icon SetIcon(m_hIcon, FALSE); // Set small icon // TODO: Add extra initialization here m_brush.CreateSolidBrush(RGB(192,192,192)); return TRUE; // return TRUE unless you set the focus to a control } void CColorDlg::OnSysCommand(UINT nID, LPARAM lParam) { if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); } } // If you add a minimize button to your dialog, you will need the code below // to draw the icon. For MFC applications using the document/view model, // this is automatically done for you by the framework. void CColorDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); // Center icon in client rectangle int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect(&rect); int x = (rect.Width() - cxIcon + 1) / 2; int y = (rect.Height() - cyIcon + 1) / 2; // Draw the icon dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); } } // The system calls this to obtain the cursor to display while the user drags // the minimized window. HCURSOR CColorDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CColorDlg::OnEnter() { UpdateData(TRUE); m_ctlAllMsg.AddString(m_strMessage); // Add a string to our listbox m_strMessage = ""; UpdateData(FALSE); } HBRUSH CColorDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) { HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor); // TODO: Change any attributes of the DC here UpdateData(TRUE); if (pWnd->GetDlgCtrlID() == IDC_ALLMSG || pWnd->GetDlgCtrlID() == IDC_MESSAGE) { // either the listbox or edit box has input focus if (m_bFirstTime == TRUE) // First time through function... set up default color pDC->SetTextColor(RGB(0,0,0)); else { pDC->SetTextColor(RGB(GetRValue(m_crColor),GetGValue(m_crColor), GetBValue(m_crColor))); pDC->SetBkColor(RGB(255 - GetRValue(m_crColor), 255 - GetGValue(m_crColor), 255 - GetBValue(m_crColor))); } } return m_brush; // Paint the dialog yellow!! // TODO: Return a different brush if the default is not desired return hbr; } void CColorDlg::OnChangeFont() { CColorDialog colorDlg; if (colorDlg.DoModal() == IDOK) // The user selected the "OK" button { m_crColor = colorDlg.GetColor(); } }