www.gusucode.com > VC++ 实现给图片添加文字水印-源码程序 > VC++ 实现给图片添加文字水印-源码程序/code/ImageTextDlg.cpp
// ImageTextDlg.cpp : implementation file // Download by http://www.NewXing.com #include "stdafx.h" #include "ImageText.h" #include "ImageTextDlg.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() ///////////////////////////////////////////////////////////////////////////// // CImageTextDlg dialog CImageTextDlg::CImageTextDlg(CWnd* pParent /*=NULL*/) : CDialog(CImageTextDlg::IDD, pParent) { //{{AFX_DATA_INIT(CImageTextDlg) m_OriginX = 0; m_OriginY = 0; //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); GdiplusStartup(&m_pGdiToken, &m_Gdiplus, NULL); //初始化GDI+ m_pBmp = NULL; } void CImageTextDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CImageTextDlg) DDX_Control(pDX, IDC_IMAGEDEMO, m_ImageDemo); DDX_Control(pDX, IDC_WATERMARK, m_WaterText); DDX_Control(pDX, IDC_FILENAME, m_FileName); DDX_Text(pDX, IDC_ORIGINX, m_OriginX); DDX_Text(pDX, IDC_ORIGINY, m_OriginY); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CImageTextDlg, CDialog) //{{AFX_MSG_MAP(CImageTextDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BROWSE, OnBrowse) ON_BN_CLICKED(IDC_IMAGE_TEXT, OnImageText) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CImageTextDlg message handlers BOOL CImageTextDlg::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 return TRUE; // return TRUE unless you set the focus to a control } void CImageTextDlg::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 CImageTextDlg::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 CImageTextDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CImageTextDlg::OnBrowse() { CFileDialog flDlg(TRUE, "", "", OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, "图像文件|*.bmp;*.jpg;*.jpeg;*.gif||"); //定义文件打开对话框 if (flDlg.DoModal() == IDOK) { CString szText = flDlg.GetPathName(); m_FileName.SetWindowText(szText); if (m_pBmp != NULL) { delete m_pBmp; m_pBmp = NULL; } m_pBmp = Bitmap::FromFile(szText.AllocSysString()); Color bkClr(0, 0, 0); HBITMAP hBmp; m_pBmp->GetHBITMAP(bkClr, &hBmp); m_ImageDemo.SetBitmap(hBmp); szText.ReleaseBuffer(); } } //水印处理 void CImageTextDlg::OnImageText() { UpdateData(); CString szText; m_WaterText.GetWindowText(szText); if (!szText.IsEmpty() && m_pBmp != NULL) { Graphics *pGraph = Graphics::FromImage(m_pBmp); Brush *brush = new SolidBrush (Color(255, 0, 0, 0)); Font *font = new Font(L"Arial", 12); PointF ptf; ptf.X = m_OriginX; ptf.Y = m_OriginY; //确定字符长度 int nLen = MultiByteToWideChar(CP_ACP, 0, szText, -1, NULL, 0); //在位图中输出字符串 pGraph->DrawString(szText.AllocSysString(), nLen, font, ptf, brush); szText.ReleaseBuffer(); Color clr; HBITMAP hBmp, hOldBmp; m_pBmp->GetHBITMAP(clr, &hBmp); hOldBmp = m_ImageDemo.SetBitmap(hBmp); if (hOldBmp) { DeleteObject(hOldBmp); } } }