www.gusucode.com > VC++浏览大像素的BMP图像-源码程序 > VC++浏览大像素的BMP图像-源码程序/code/BrownBMPDlg.cpp
// BrownBMPDlg.cpp : implementation file // Download by http://www.NewXing.com #include "stdafx.h" #include "BrownBMP.h" #include "BrownBMPDlg.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() ///////////////////////////////////////////////////////////////////////////// // CBrownBMPDlg dialog CBrownBMPDlg::CBrownBMPDlg(CWnd* pParent /*=NULL*/) : CDialog(CBrownBMPDlg::IDD, pParent) { //{{AFX_DATA_INIT(CBrownBMPDlg) m_Path = _T(""); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CBrownBMPDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CBrownBMPDlg) DDX_Control(pDX, IDC_FRAME, m_Frame); DDX_Control(pDX, IDC_BMP, m_Bmp); DDX_Text(pDX, IDC_PATH, m_Path); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CBrownBMPDlg, CDialog) //{{AFX_MSG_MAP(CBrownBMPDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BROWN, OnBrown) ON_WM_HSCROLL() ON_WM_MOUSEWHEEL() //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CBrownBMPDlg message handlers BOOL CBrownBMPDlg::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 //创建子对话框 m_BrownDlg.Create(IDD_BMPDLG_DIALOG,this); CRect rect,framerect; m_BrownDlg.GetClientRect(rect); m_Frame.GetClientRect(framerect); m_Frame.MapWindowPoints(this,framerect); m_BrownDlg.MoveWindow(framerect); m_BrownDlg.ShowWindow(SW_SHOW); m_Bmp.SetParent(&m_BrownDlg); CRect bmprect; m_Bmp.GetClientRect(bmprect); m_Bmp.MoveWindow(0,0,bmprect.Width(),bmprect.Height()); //m_Horz.SetParent(&m_Parent); return TRUE; // return TRUE unless you set the focus to a control } void CBrownBMPDlg::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 CBrownBMPDlg::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 CBrownBMPDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CBrownBMPDlg::OnOK() { } void CBrownBMPDlg::OnBrown() { CFileDialog dlg(TRUE,"","",OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"位图文件(BMP)|*.bmp",this); if (dlg.DoModal()==IDOK) { CString filename = dlg.GetPathName(); m_Path = filename; UpdateData(FALSE); HANDLE handle = LoadImage(NULL,filename,IMAGE_BITMAP,0,0,LR_LOADFROMFILE); m_Bmp.SetBitmap((HBITMAP)handle); CRect bmprect,dlgrect; m_Bmp.GetClientRect(bmprect); m_BrownDlg.GetClientRect(dlgrect); int xpos = m_BrownDlg.GetScrollPos(SB_HORZ); if (xpos !=0) m_BrownDlg.ScrollWindow(xpos,0); //恢复窗口的水平滚动区域 int ypos = m_BrownDlg.GetScrollPos(SB_VERT); if (ypos !=0) m_BrownDlg.ScrollWindow(0,ypos); //恢复窗口的垂直滚动区域 SCROLLINFO vinfo; vinfo.cbSize = sizeof(vinfo); vinfo.fMask = SIF_ALL; vinfo.nPage = 100; vinfo.nMax= bmprect.Height()-dlgrect.Height()+100; vinfo.nMin = 0; vinfo.nTrackPos = 0; vinfo.nPos = 0; //设置垂直滚动条信息 m_BrownDlg.SetScrollInfo(SB_VERT,&vinfo); vinfo.fMask = SIF_ALL; vinfo.nPage = 100; vinfo.nMax= bmprect.Width()-dlgrect.Width()+100; vinfo.nMin = 0; vinfo.nPos = 0; vinfo.nTrackPos = 0; vinfo.cbSize = sizeof(vinfo); //设置水平滚动条信息 m_BrownDlg.SetScrollInfo(SB_HORZ,&vinfo); } } void CBrownBMPDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) { CDialog::OnHScroll(nSBCode, nPos, pScrollBar); } BOOL CBrownBMPDlg::PreTranslateMessage(MSG* pMsg) { return CDialog::PreTranslateMessage(pMsg); } BOOL CBrownBMPDlg::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt) { m_BrownDlg.OnMouseWheel(nFlags,zDelta,pt); return CDialog::OnMouseWheel(nFlags, zDelta, pt); }