www.gusucode.com > 基于Visual C++高级界面特效制作百例源码程序 > 基于Visual C++高级界面特效制作百例源码程序/code/char06/ExpandDialog/ExpandDialogDlg.cpp
// ExpandDialogDlg.cpp : implementation file // #include "stdafx.h" #include "ExpandDialog.h" #include "ExpandDialogDlg.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() ///////////////////////////////////////////////////////////////////////////// // CExpandDialogDlg dialog CExpandDialogDlg::CExpandDialogDlg(CWnd* pParent /*=NULL*/) : CDialog(CExpandDialogDlg::IDD, pParent) { //{{AFX_DATA_INIT(CExpandDialogDlg) // NOTE: the ClassWizard will add member initialization here //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CExpandDialogDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CExpandDialogDlg) // NOTE: the ClassWizard will add DDX and DDV calls here //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CExpandDialogDlg, CDialog) //{{AFX_MSG_MAP(CExpandDialogDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_MORE_BUTTON, OnMoreButton) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CExpandDialogDlg message handlers BOOL CExpandDialogDlg::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 // 在对话框为缩小状态时,初始显示它 ExtendDlg(IDC_SEPARATE,FALSE); return TRUE; // return TRUE unless you set the focus to a control } void CExpandDialogDlg::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 CExpandDialogDlg::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 CExpandDialogDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CExpandDialogDlg::ExtendDlg(int nResourceID, BOOL bExpand) { // 如果bExpand==TRUE,则扩展对话框为最大; // 否则缩小对话框,新的对话框的底部为资源nResourceID控件分割 static CRect rcLarge; static CRect rcSmall; CString sExpand; // 在开始时,保存对话框的最大和最小尺寸 if(rcLarge.IsRectNull()) { CRect rcLandmark; // 得到分割条的指针 CWnd* pWndLandmark=GetDlgItem(nResourceID); ASSERT(pWndLandmark); // 得到对话框的尺寸 GetWindowRect(rcLarge); // 得到分割条在对话框中的位置 pWndLandmark->GetWindowRect(rcLandmark); rcSmall=rcLarge; rcSmall.bottom=rcLandmark.top; } if(bExpand) { // 扩展对话框:重新设置对话框到其原始(最大)尺寸(rcLarge) SetWindowPos(NULL,0,0,rcLarge.Width(),rcLarge.Height(), SWP_NOMOVE|SWP_NOZORDER); sExpand="<<&Less"; EnableVisibleChildren(); } else { // 缩小对话框:重新设置对话框到其最小尺寸(rcSmall) SetWindowPos(NULL,0,0,rcSmall.Width(),rcSmall.Height(), SWP_NOMOVE|SWP_NOZORDER); sExpand="&More>>"; EnableVisibleChildren(); } // 设置按钮的文字 SetDlgItemText(IDC_MORE_BUTTON,sExpand); } void CExpandDialogDlg::EnableVisibleChildren() { // 下面的代码使不在当前对话框中的按钮失效。 // 这样可以避免使用Tab键或者快捷键移动到隐藏的控件 // 得到第一个子控件 CWnd* pWndCtrl=GetWindow(GW_CHILD); CRect rcRest; CRect rcControl; CRect rcShow; GetWindowRect(rcShow); // 遍历对话框中的控件 while(pWndCtrl!=NULL) { pWndCtrl->GetWindowRect(rcControl); if(rcRest.IntersectRect(rcShow,rcControl)) pWndCtrl->EnableWindow(TRUE); else pWndCtrl->EnableWindow(FALSE); // 得到在控件组中的下一个 pWndCtrl=pWndCtrl->GetWindow(GW_HWNDNEXT); } } void CExpandDialogDlg::OnMoreButton() { // 变量bExpand用于跟踪对话框扩展/缩减的状态 static BOOL bExpand = TRUE; // 以IDC_SEPARATE分割对话框 ExtendDlg(IDC_SEPARATE,bExpand); bExpand=!bExpand; }