#include "StdAfx.h" #include "IMGCommon.h" #include #include "CharEncoding.h" #ifdef _DEBUG #define new DEBUG_NEW #endif const ColorMatrix _ClrMatrix = { 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.3, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, }; ULONG_PTR IMGCommon::m_gdiplusToken; IMGCommon::IMGCommon(void) { GdiplusStartupInput gdiplusStartupInput; GdiplusStartup(&m_gdiplusToken, &gdiplusStartupInput, NULL); } IMGCommon::~IMGCommon(void) { Gdiplus::GdiplusShutdown(m_gdiplusToken); } /************************************************************************/ /* 函数:IsValidpath[3/20/2016 IT]; /* 描述:判断一个路径是否是本地可以盘符或可用的网络路径; /* 参数:; /* [IN] strPath:要判断的路径; /* 返回:盘符或网络路径有效返回TRUE; /* 注意:; /* 示例:; /* /* 修改:; /* 日期:; /* 内容:; /************************************************************************/ BOOL IMGCommon::IsValidpath(IN CONST TString &strPath) { // 文件表现形式有三种: // 1.本地形式: C:\myfolder\you // 2.共享形式: \\192.168.1.112\myfolder\\you if (strPath.size() < 2) return FALSE; // 含":"为本地路径; if (strPath[1] == _T(':')) { DWORD dwDiskType = 0; dwDiskType = GetDriveType(strPath.substr(0, 3).c_str()); switch (dwDiskType) { case DRIVE_UNKNOWN: // 未知驱动盘符; case DRIVE_NO_ROOT_DIR: // 没有根目录; //case DRIVE_REMOVABLE: // 移动存储设备盘符; // case DRIVE_FIXED: // 硬盘; case DRIVE_CDROM: // CD盘符; case DRIVE_RAMDISK: // ; return FALSE; break; } } else if (strPath.substr(0, 2).find(_T("\\\\")) != TString::npos) { // 共享路径; TString strtmp = strPath.substr(2); int n = strPath.substr(2).find(_T("\\")); if (n == TString::npos) return FALSE; strtmp = strPath.substr(0, n + 2); // 需要判断网络路径可用否; DWORD dwRet = 0; NETRESOURCE nr; memset(&nr, 0, sizeof(nr)); nr.dwScope = RESOURCE_CONNECTED; nr.dwType = RESOURCETYPE_ANY; nr.dwDisplayType = RESOURCEDISPLAYTYPE_GENERIC; nr.dwUsage = RESOURCEUSAGE_CONNECTABLE; #ifndef UNICODE nr.lpRemoteName = (LPSTR)strtmp.c_str(); #else nr.lpRemoteName = (LPWSTR)(strtmp.c_str()); #endif dwRet = WNetAddConnection2(&nr, NULL, NULL, CONNECT_UPDATE_PROFILE); if (dwRet == ERROR_BAD_NETPATH)// 无效的网络路径,表示没有这个网络地址; return FALSE; else if (dwRet == ERROR_LOGON_FAILURE)// 登陆这个网络路径失败,因为当前用户名和密码错误; 没有权限; return FALSE; } return TRUE; } void IMGCommon::Splitpath(IN CONST TCHAR *path, IN TCHAR * drive, IN size_t driveNumberOfElements, IN TCHAR * dir, IN size_t dirNumberOfElements, IN CONST int &nTimes) { int i = 0; int npoint = 0; // '.' int nsprit = 0; // '\\' int ncolon = 0; // ':' int ntimes = 0; int nlen = _tcslen(path); while (nlen > i++) { if (path[i] == _T(':') && !ncolon ) { ncolon = i; } else if (path[i] == _T('\\')) { if ( ncolon ) {// 本地目录; if ( i == ncolon+1 ) continue; nsprit = i; ntimes++; if (nTimes == ntimes) break; } else {// 网络路径; if ( i == 0 || i == 1 ) continue; nsprit = i; ntimes++; if (nTimes == ntimes-1) break; } } } memcpy_s(drive, driveNumberOfElements*sizeof(TCHAR), path, (ncolon + 1)*sizeof(TCHAR)); memcpy_s(dir, dirNumberOfElements*sizeof(TCHAR), &path[ncolon + 1], (nsprit - ncolon)*sizeof(TCHAR)); } /************************************************************************/ /* 函数:CreateDirectoryEx,多字节版本,支持UNICODE[9/13/2016 IT]; /* 描述:创建目录及子目录文件夹; /* 参数:; /* [IN] lpDestDirectory:目录,必须是"E:\lyfzdb\数据\"格式,目录最后必须有"\",否则最后一个子目录无法创建!建议使用系统_tsplitpath来分隔目录,这样会保存最后一个"\"斜杠; /* 返回:成功创建返回TRUE; /* 注意:; /* 示例:; /* /* 修改:; /* 日期:; /* 内容:; /************************************************************************/ BOOL IMGCommon::CreateDirectoryEx(IN LPCTSTR lpNewDirectory) { // 判断路径有效性 ; if (!lpNewDirectory || !IsValidpath(lpNewDirectory)) return FALSE; BOOL bExists = FALSE; TCHAR szNewFileName[_MAX_PATH] = { 0 }; TCHAR szDrive[_MAX_DRIVE] = { 0 }; TCHAR szDir[_MAX_DIR] = { 0 }; TCHAR szFna[_MAX_FNAME] = { 0 }; TCHAR szExt[_MAX_EXT] = { 0 }; TCHAR szNewDirectory[_MAX_PATH] = { 0 }; if (lpNewDirectory[_tcslen(lpNewDirectory) - 1] != _T('\\')) StringCchPrintf(szNewDirectory, _MAX_PATH, _T("%s\\"), lpNewDirectory); else StringCchPrintf(szNewDirectory, _MAX_PATH, _T("%s"), lpNewDirectory); int nIndex = 0; do { bExists = PathFileExists(szNewDirectory); if (!bExists) { memset(szDrive, 0, _MAX_DRIVE*sizeof(TCHAR)); memset(szDir, 0, _MAX_DIR*sizeof(TCHAR)); memset(szFna, 0, _MAX_FNAME*sizeof(TCHAR)); memset(szExt, 0, _MAX_EXT*sizeof(TCHAR)); Splitpath(szNewDirectory, szDrive, _MAX_DRIVE, szDir, _MAX_DIR, ++nIndex); StringCchPrintf(szNewFileName, _MAX_PATH, _T("%s%s"), szDrive, szDir); if (!CreateDirectory(szNewFileName, NULL)) { DWORD dwError = GetLastError(); switch (dwError) { case ERROR_PATH_NOT_FOUND: // 路径未找到,上一层目录未创建导致该错误; case ERROR_ACCESS_DENIED: // 没有权限访问; case ERROR_BAD_NET_NAME: // 错误的网络名称; //case ERROR_BAD_PATHNAME: // //WriteTextLog(_T("创建目录失败:%s"), GetErrorInfo(dwError)); return FALSE; break; case ERROR_ALREADY_EXISTS: // 文件存在,不需要创建; break; default: //WriteTextLog(_T("创建目录失败:%s"), GetErrorInfo(dwError)); break; } } } } while (!bExists); return TRUE; } ////////////////////////////////////////////////////////////////////////// BOOL IMGCommon::LoadImgFromFile(IN Image** pImg, LPCTSTR lpPath) { if ( !PathFileExists(lpPath) ) return FALSE; if ( *pImg ) delete *pImg; *pImg = NULL; #ifdef UNICODE *pImg = Image::FromFile(lpPath); #else BSTR strtmp = _bstr_t(lpPath); *pImg = Image::FromFile(strtmp); SysFreeString(strtmp); #endif return (*pImg ? TRUE : FALSE); } BOOL IMGCommon::LoadImgFromBuffer(IN Image** pImg, IN BYTE* pBuffer, IN CONST INT& nBufLen) { if ( pBuffer == NULL ) return FALSE; if ( *pImg ) delete *pImg; *pImg = NULL; HGLOBAL hMemery = GlobalAlloc(GMEM_MOVEABLE, nBufLen); if ( hMemery == NULL ) return FALSE; BYTE *pMem = (BYTE*)GlobalLock(hMemery); memcpy(pMem, pBuffer, nBufLen); IStream *pstream = NULL; CreateStreamOnHGlobal(hMemery, TRUE, &pstream); *pImg = Image::FromStream(pstream); GlobalUnlock(hMemery); pstream->Release(); return (*pImg ? TRUE : FALSE); } // 先以只读方式从文件中读取二进制流出来,可以做到不独占文件; BOOL IMGCommon::LoadImgFromBuffer(IN Image** pImg, LPCTSTR lpPath) { if ( !PathFileExists(lpPath) ) return FALSE; if ( *pImg ) delete *pImg; *pImg = NULL; CFile fp; CFileException e; BOOL bRet = FALSE; if ( fp.Open(lpPath, CFile::modeRead, &e)) { DWORD dwLength = (DWORD)fp.GetLength(); BYTE *pData = new BYTE[dwLength]; fp.Read(pData,dwLength); fp.Close(); bRet = LoadImgFromBuffer(pImg, pData, dwLength); if( pData ) delete []pData; } return bRet; } /************************************************************************/ /* 函数:LoadImgFromResource[9/21/2016 IT]; /* 描述:从资源中加载; /* 参数:; /* [IN] :; /* [OUT] :; /* [IN/OUT] :; /* 返回:void; /* 注意:; /* 示例:; /* /* 修改:; /* 日期:; /* 内容:; /************************************************************************/ Image* IMGCommon::LoadImgFromResource(IN HMODULE hModule, IN LPCTSTR lpName, IN LPCTSTR lpType) { HGLOBAL hGlobal = NULL; HRSRC hSource = NULL; LPVOID lpBuffer = NULL; DWORD dwSize = 0; // 1.定位我们的自定义资源,这里因为我们是从本模块定位资源,所以将句柄简单地置为NULL即可 hSource = FindResource(hModule, lpName, lpType); if (hSource == NULL) { _tprintf(_T("载入资源失败:%s"), lpName); return NULL; } // 2.获取资源的大小; dwSize = (UINT)SizeofResource(hModule, hSource); // 3.加载资源; hGlobal = LoadResource(hModule, hSource); if (hGlobal == NULL) { _tprintf(_T("载入资源失败:%s"), lpName); return NULL; } // 4.锁定资源,获取buffer; lpBuffer = LockResource(hGlobal); if (lpBuffer == NULL) { _tprintf(_T("载入资源失败:%s"), lpName); return NULL;; } // lpFileFullName需要先判断文件是否存在??不需要; Image *pImg = NULL; LoadImgFromBuffer(&pImg, (BYTE*)lpBuffer, dwSize); UnlockResource(hGlobal); FreeResource(hGlobal); return pImg; } BOOL IMGCommon::GetOrientation(IN Image *pImg) { if (pImg == NULL) return FALSE; UINT totalBufferSize; UINT numProperties; pImg->GetPropertySize(&totalBufferSize, &numProperties); // Allocate the buffer that will receive the property items. PropertyItem* pAllItems = (PropertyItem*)malloc(totalBufferSize); // Fill the buffer. pImg->GetAllPropertyItems(totalBufferSize, numProperties, pAllItems); // Print the id data member of each property item. for (UINT j = 0; j < numProperties; ++j) { if (PropertyTagOrientation == pAllItems[j].id) { short* ptrLong = (short*)(pAllItems[j].value); int ret = (int)*ptrLong; free(pAllItems); return ret; } } free(pAllItems); return TRUE; } /************************************************************************/ /* 函数:GetEncoderClsid 描述:获取GDI+支持的图像格式编码器种类,以及所有种类编码器信息; 参数: IN: format 要获取的图像格式; OUT: pClsid 返回符合条件的图像编码器信息; 返回:成功返回编码器索引,否则返回-1; */ /************************************************************************/ int IMGCommon::GetEncoderClsid(IN CONST WCHAR* format, OUT CLSID* pClsid) { // GDI+支持的图像编码器数量; UINT numEncoders = 0; // GDI+所有图像格式编码器详细信息所需要的空间大小; UINT nSize = 0; ImageCodecInfo* pImageCodecInfo = NULL; // 2.获取GDI+支持的所有图像格式编码器详细信息所需要的空间大小; GetImageEncodersSize(&numEncoders, &nSize); if (nSize == 0) return -1; //3.为ImageCodecInfo数组分配足额空间; pImageCodecInfo = (ImageCodecInfo*)(malloc(nSize)); if (pImageCodecInfo == NULL) return -1; //4.获取所有的图像编码器信息; GetImageEncoders(numEncoders, nSize, pImageCodecInfo); //5.查找符合的图像编码器的Clsid; for (UINT i = 0; i < numEncoders; ++i) { if (wcscmp(pImageCodecInfo[i].MimeType, format) == 0) { *pClsid = pImageCodecInfo[i].Clsid; free(pImageCodecInfo); return i; // Success } } //6.释放步骤3分配的内存; free(pImageCodecInfo); return -1; } /************************************************************************/ /* 函数:SaveImg2newfile 描述:将Image对象另存为其他格式的文件; 参数: IN: pImg GDI+ Image对象指针,需要保存的图像对象; IN: lpnewfile 其他格式的新文件名(jpg,bmp,png,jpeg); IN: uQuality 另存为新文件时的图像质量值; 返回: 注意:Image::Save 若文件存在,会覆盖存在的文件; */ /************************************************************************/ BOOL IMGCommon::SaveImg2newfile(IN Image* pImg, IN CString strNewfile, IN ULONG uQuality) { if (pImg == NULL) return FALSE; // 需要判断路径是否存在,不存在创建目录; int nIndex = strNewfile.ReverseFind(_T('\\')); if (nIndex == -1) return FALSE; if (!PathFileExists(strNewfile.Left(nIndex))) { // 如果文件夹不存在,创建; #if 0 CreateDirectoryEx(strNewfile.Left(nIndex)); #else SHCreateDirectoryEx(NULL, strNewfile.Left(nIndex), NULL); #endif } nIndex = strNewfile.ReverseFind(_T('.')); if (nIndex == -1) return FALSE; Status stat = GenericError; CLSID encoderClsid = { 0 }; BSTR newfile = strNewfile.AllocSysString(); strNewfile = strNewfile.Mid(nIndex + 1); if (strNewfile.CompareNoCase(_T("bmp")) == 0) { GetEncoderClsid(L"image/bmp", &encoderClsid); stat = pImg->Save(newfile, &encoderClsid, NULL); } else if (strNewfile.CompareNoCase(_T("png")) == 0) { GetEncoderClsid(L"image/png", &encoderClsid); stat = pImg->Save(newfile, &encoderClsid, NULL); } else// if ( strNewfile.CompareNoCase(_T("jpeg")) == 0 ) { GetEncoderClsid(L"image/jpeg", &encoderClsid); EncoderParameters encoderParameters; encoderParameters.Count = 1; encoderParameters.Parameter[0].Guid = EncoderQuality; encoderParameters.Parameter[0].Type = EncoderParameterValueTypeLong; encoderParameters.Parameter[0].NumberOfValues = 1; // Save the image as a JPEG with quality level 100. encoderParameters.Parameter[0].Value = &uQuality; stat = pImg->Save(newfile, &encoderClsid, &encoderParameters); } SysFreeString(newfile); return stat == Ok ? TRUE : FALSE; } BOOL IMGCommon::SaveImg2newfile(IN Image* pImg, IN TString strNewfile, IN ULONG uQuality) { if (pImg == NULL) return FALSE; // 需要判断路径是否存在,不存在创建目录; int nIndex = strNewfile.find_last_of(_T('\\')); if (nIndex == TString::npos) return FALSE; if (!PathFileExists(strNewfile.substr(0, nIndex).c_str())) { // 如果文件夹不存在,创建; #if 0 CreateDirectoryEx(strNewfile.substr(0, nIndex).c_str()); #else SHCreateDirectoryEx(NULL, strNewfile.substr(0, nIndex).c_str(), NULL); #endif } nIndex = strNewfile.find_last_of(_T('.')); if (nIndex == TString::npos) return FALSE; Status stat = GenericError; CLSID encoderClsid = { 0 }; BSTR newfile = _bstr_t(strNewfile.c_str()); strNewfile = strNewfile.substr(nIndex + 1); if (strNewfile.find(_T("bmp")) == 0) { GetEncoderClsid(L"image/bmp", &encoderClsid); stat = pImg->Save(newfile, &encoderClsid, NULL); } else if (strNewfile.find(_T("png")) == 0) { GetEncoderClsid(L"image/png", &encoderClsid); stat = pImg->Save(newfile, &encoderClsid, NULL); } else// if ( strNewfile.CompareNoCase(_T("jpeg")) == 0 ) { GetEncoderClsid(L"image/jpeg", &encoderClsid); EncoderParameters encoderParameters; encoderParameters.Count = 1; encoderParameters.Parameter[0].Guid = EncoderQuality; encoderParameters.Parameter[0].Type = EncoderParameterValueTypeLong; encoderParameters.Parameter[0].NumberOfValues = 1; // Save the image as a JPEG with quality level 100. encoderParameters.Parameter[0].Value = &uQuality; stat = pImg->Save(newfile, &encoderClsid, &encoderParameters); } SysFreeString(newfile); return stat == Ok ? TRUE : FALSE; } /************************************************************************/ /* 函数:ZoomImg 描述:缩放到指定大小的区域中,返回缩放后的尺寸; 参数: IN: Imgrc 图像的大小; IN: dwDisplayPix 图像要显示的区域的大小; OUT: dwZoomPix 图像在显示区域内缩放后的尺寸; 返回: 注意:dwZoomPix的尺寸必须在dwDisplayPix内; */ /************************************************************************/ int IMGCommon::ZoomImg(IN CRect &Imgrc, IN CONST DWORD &dwDisplayPix, OUT DWORD &dwZoomPix) { double fDisplayWidth = GET_XPIX(dwDisplayPix); double fDisplayHeight = GET_YPIX(dwDisplayPix); // 显示区域长宽比; double fDisplayAspectRatio = fDisplayWidth / fDisplayHeight; // 图片长宽比; double fImgAspectRatio = ((double)Imgrc.Width()) / ((double)Imgrc.Height()); double fZoomWidth; double fZoomHeight; if (fDisplayAspectRatio > fImgAspectRatio) { fZoomWidth = fDisplayHeight*fImgAspectRatio; fZoomHeight = fDisplayHeight; } else { fZoomWidth = fDisplayWidth; fZoomHeight = fDisplayWidth / fImgAspectRatio; } dwZoomPix = SET_PIX((int)fZoomWidth, (int)fZoomHeight); ////////////////////////////////////////////////////////////////////////// int nRetval = 0; if ((fDisplayWidth == Imgrc.Width()) && (fDisplayHeight == Imgrc.Height())) { nRetval = ZoomNull; } else if ((fDisplayWidth > Imgrc.Width()) && (fDisplayHeight > Imgrc.Height())) { nRetval = ZoomOut; } else { nRetval = ZoomIn; } return nRetval; } int IMGCommon::ZoomImg(IN CONST DWORD &dwImgPix, IN CONST DWORD &dwDisplayPix, OUT DWORD &dwZoomPix) { double fDisplayWidth = GET_XPIX(dwDisplayPix); double fDisplayHeight = GET_YPIX(dwDisplayPix); // 显示区域长宽比; double fDisplayAspectRatio = fDisplayWidth / fDisplayHeight; // 图片长宽比; double fImgAspectRatio = ((double)GET_XPIX(dwImgPix)) / ((double)GET_YPIX(dwImgPix)); double fZoomWidth; double fZoomHeight; if (fDisplayAspectRatio > fImgAspectRatio) { fZoomWidth = fDisplayHeight*fImgAspectRatio; fZoomHeight = fDisplayHeight; } else { fZoomWidth = fDisplayWidth; fZoomHeight = fDisplayWidth / fImgAspectRatio; } dwZoomPix = SET_PIX((int)fZoomWidth, (int)fZoomHeight); ////////////////////////////////////////////////////////////////////////// int nRetval = 0; if ((fDisplayWidth == GET_XPIX(dwImgPix)) && (fDisplayHeight == GET_YPIX(dwImgPix))) { nRetval = ZoomNull; } else if ((fDisplayWidth > GET_XPIX(dwImgPix)) && (fDisplayHeight > GET_YPIX(dwImgPix))) { nRetval = ZoomOut; } else { nRetval = ZoomIn; } return nRetval; } /************************************************************************/ /* 函数:ImgThumbnail 描述:生成高质量的图像缩略图; 参数: 返回: 注意:为了健壮性,strNewfile的路径可以在函数内再次判断是否有效,防止在函数外没有进行经判断; */ /************************************************************************/ BOOL IMGCommon::ImgThumbnail(IN Image* pImg, IN CONST DWORD &dwDisplayPix, IN CString strNewfile, IN ULONG uQuality) { if (pImg == NULL) return FALSE; DWORD dwZoomPix; int retval = ZoomImg(SET_PIX(pImg->GetWidth(), pImg->GetHeight()), dwDisplayPix, dwZoomPix); if (retval == ZoomOut) { return FALSE; } else if (retval == ZoomNull) { return SaveImg2newfile(pImg, strNewfile, uQuality); } // 绘制缩略图; Bitmap bitmap(GET_XPIX(dwZoomPix), GET_YPIX(dwZoomPix)); Graphics *graphic = Graphics::FromImage(&bitmap); graphic->Clear(Color(255, 255, 255, 255)); // 设置缩放或旋转图片时的算法(图片质量); graphic->SetInterpolationMode(InterpolationModeHighQualityBicubic); // 设置渲染图形对象的质量; graphic->SetSmoothingMode(SmoothingModeHighQuality);//SmoothingModeHighSpeed // 设置图形对象的像素偏移模式; graphic->SetPixelOffsetMode(PixelOffsetModeHighQuality); // 设置图形对象的合成模式; graphic->SetCompositingMode(CompositingModeSourceOver); // 设置图形对象的合成质量; graphic->SetCompositingQuality(CompositingQualityHighQuality); // 设置图形对象的文本渲染模式; graphic->SetTextRenderingHint(TextRenderingHintAntiAliasGridFit); graphic->DrawImage(pImg, 0, 0, GET_XPIX(dwZoomPix), GET_YPIX(dwZoomPix)); delete graphic; // 生成缩略图; return SaveImg2newfile(&bitmap, strNewfile, uQuality); } BOOL IMGCommon::ImgThumbnail(IN LPCTSTR lpImgpath, IN CONST DWORD &dwDisplayPix, IN CString strNewfile, IN ULONG uQuality) { if (!PathFileExists(lpImgpath)) return FALSE; #ifdef UNICODE Image Img(lpImgpath); #else BSTR strtmp = _bstr_t(lpImgpath); Image Img(strtmp); SysFreeString(strtmp); #endif DWORD dwZoomPix; int retval = ZoomImg(SET_PIX(Img.GetWidth(), Img.GetHeight()), dwDisplayPix, dwZoomPix); if (retval == ZoomOut) { return FALSE; } else if (retval == ZoomNull) { return SaveImg2newfile(&Img, strNewfile, uQuality); } // 绘制缩略图; Bitmap bitmap(GET_XPIX(dwZoomPix), GET_YPIX(dwZoomPix)); Graphics *graphic = Graphics::FromImage(&bitmap); graphic->Clear(Color(255, 255, 255, 255)); // 设置缩放或旋转图片时的算法(图片质量); graphic->SetInterpolationMode(InterpolationModeHighQualityBicubic); // 设置渲染图形对象的质量; graphic->SetSmoothingMode(SmoothingModeHighQuality);//SmoothingModeHighSpeed // 设置图形对象的像素偏移模式; graphic->SetPixelOffsetMode(PixelOffsetModeHighQuality); // 设置图形对象的合成模式; graphic->SetCompositingMode(CompositingModeSourceOver); // 设置图形对象的合成质量; graphic->SetCompositingQuality(CompositingQualityHighQuality); // 设置图形对象的文本渲染模式; graphic->SetTextRenderingHint(TextRenderingHintAntiAliasGridFit); Status st = graphic->DrawImage(&Img, 0, 0, GET_XPIX(dwZoomPix), GET_YPIX(dwZoomPix)); if ( st != Ok ) { delete graphic; return FALSE; } delete graphic; // 生成缩略图; return SaveImg2newfile(&bitmap, strNewfile, uQuality); } BOOL IMGCommon::ImgThumbnail(IN CONST TString &strImgpath, IN CONST DWORD &dwDisplayPix, IN TString strNewfile, IN ULONG uQuality) { if (!PathFileExists(strImgpath.c_str())) { SetLastError(GetLastError()); return FALSE; } #ifdef UNICODE BSTR strtmp = _bstr_t(strImgpath.c_str()); Image Img(strtmp); SysFreeString(strtmp); //Image Img(strImgpath); #else BSTR strtmp = _bstr_t(strImgpath.c_str()); Image Img(strtmp); SysFreeString(strtmp); #endif DWORD dwZoomPix; int retval = ZoomImg(SET_PIX(Img.GetWidth(), Img.GetHeight()), dwDisplayPix, dwZoomPix); if (retval == ZoomOut) { return FALSE; } else if (retval == ZoomNull) { return SaveImg2newfile(&Img, strNewfile, uQuality); } // 绘制缩略图; Bitmap bitmap(GET_XPIX(dwZoomPix), GET_YPIX(dwZoomPix)); Graphics *graphic = Graphics::FromImage(&bitmap); graphic->Clear(Color(255, 255, 255, 255)); // 设置缩放或旋转图片时的算法(图片质量); graphic->SetInterpolationMode(InterpolationModeHighQualityBicubic); // 设置渲染图形对象的质量; graphic->SetSmoothingMode(SmoothingModeHighQuality);//SmoothingModeHighSpeed // 设置图形对象的像素偏移模式; graphic->SetPixelOffsetMode(PixelOffsetModeHighQuality); // 设置图形对象的合成模式; graphic->SetCompositingMode(CompositingModeSourceOver); // 设置图形对象的合成质量; graphic->SetCompositingQuality(CompositingQualityHighQuality); // 设置图形对象的文本渲染模式; graphic->SetTextRenderingHint(TextRenderingHintAntiAliasGridFit); Status st = graphic->DrawImage(&Img, 0, 0, GET_XPIX(dwZoomPix), GET_YPIX(dwZoomPix)); if ( st != Ok ) { delete graphic; return FALSE; } delete graphic; // 生成缩略图; return SaveImg2newfile(&bitmap, strNewfile, uQuality); } BOOL IMGCommon::SimpleImgThumbnail(IN LPCTSTR lpImgpath, IN CONST DWORD &dwDisplayPix, IN CString strNewfile, IN ULONG uQuality) { if (!PathFileExists(lpImgpath)) return FALSE; DWORD dwZoomPix; Image *pImg = NULL; LoadImgFromFile(&pImg, lpImgpath); if ( pImg == NULL ) { return FALSE; } int retval = ZoomImg(SET_PIX(pImg->GetWidth(), pImg->GetHeight()), dwDisplayPix, dwZoomPix); if (retval == ZoomOut) { if (pImg) delete pImg; return FALSE; } else if (retval == ZoomNull) { BOOL bRet = SaveImg2newfile(pImg, strNewfile, uQuality); if (pImg) delete pImg; return bRet; } Image *pThumbnailImg = pImg->GetThumbnailImage(GET_XPIX(dwZoomPix), GET_YPIX(dwZoomPix)); if (pThumbnailImg) { // 提高缩略图质量; Graphics graphic(pThumbnailImg); graphic.DrawImage(pImg, 0, 0, pThumbnailImg->GetWidth(), pThumbnailImg->GetHeight()); INT nRientation = GetOrientation(pImg); if ( nRientation == 8 ) { pThumbnailImg->RotateFlip(Rotate270FlipNone); } else if (nRientation == 6) { pThumbnailImg->RotateFlip(Rotate90FlipNone); } SaveImg2newfile(pThumbnailImg, strNewfile, uQuality); } else { if (pImg) delete pImg; return FALSE; } if (pImg) delete pImg; if (pThumbnailImg) delete pThumbnailImg; return TRUE; } Image* IMGCommon::AppendImgWatermark(IN Image* pImg, IN Image* pWatemarkImg) { if ( pImg == NULL || pWatemarkImg == NULL ) return NULL; // Status st = GenericError; // 创建图像显示属性对象; ImageAttributes ImgAttr; // 创建新位图; Bitmap *pBitmap = ::new Bitmap(pImg->GetWidth(), pImg->GetHeight(), PixelFormat32bppPARGB); // 创建水印图显示位置; RectF layWatemarkRect(10.0, 10.0, pWatemarkImg->GetWidth(), pWatemarkImg->GetHeight()); // 创建画布对象; Graphics *grap = Graphics::FromImage(pBitmap); // 绘制画布底色; if ( Ok != grap->Clear(Color(255,255,255,255)) ) goto clear; // 设置图片显示质量; if ( Ok != grap->SetSmoothingMode(SmoothingModeAntiAlias) ) goto clear; // 设置文本质量; if ( Ok != grap->SetTextRenderingHint(TextRenderingHintAntiAlias)) goto clear; // 在画布上画原始图片; if ( Ok != grap->DrawImage(pImg, 0, 0, pImg->GetWidth(), pImg->GetHeight()) ) goto clear; // 设置透明颜色为水印图片四角底色,水印图显示为圆角; if ( Ok != ImgAttr.SetColorKey(0xFF00FF00, 0xFF00FF00, ColorAdjustTypeBitmap)) goto clear; // 设置水印图片透明底为0.3; if ( Ok != ImgAttr.SetColorMatrix(&_ClrMatrix, ColorMatrixFlagsDefault, ColorAdjustTypeBitmap) ) goto clear; // 在画布左上角画水印; if ( Ok != grap->DrawImage(pWatemarkImg, layWatemarkRect, 0, 0, pWatemarkImg->GetWidth(), pWatemarkImg->GetHeight(), UnitPixel, &ImgAttr) ) goto clear; if ( grap ) delete grap; return pBitmap; clear: if ( grap ) delete grap; if ( pBitmap ) delete pBitmap; return NULL; } Image* IMGCommon::AppendImgWatermark(IN Image* pImg, IN LPCTSTR lpWatemarkImgpath) { if ( !PathFileExists(lpWatemarkImgpath) || pImg == NULL ) return FALSE; #ifdef UNICODE Image *pWatemarkImg = Image::FromFile(lpWatemarkImgpath); #else BSTR str = _bstr_t(lpWatemarkImgpath); Image* pWatemarkImg = Image::FromFile(str); SysFreeString(str); #endif if ( pImg == NULL ) return NULL; //Status st = GenericError; // 创建图像显示属性对象; ImageAttributes ImgAttr; // 创建新位图; Bitmap *pBitmap = ::new Bitmap(pImg->GetWidth(), pImg->GetHeight(), PixelFormat32bppPARGB); // 创建水印图显示位置; RectF layWatemarkRect(10.0, 10.0, pWatemarkImg->GetWidth(), pWatemarkImg->GetHeight()); // 创建画布对象; Graphics *grap = Graphics::FromImage(pBitmap); // 绘制画布底色; if ( Ok != grap->Clear(Color(255,255,255,255)) ) goto clear; // 设置图片显示质量; if ( Ok != grap->SetSmoothingMode(SmoothingModeAntiAlias) ) goto clear; // 设置文本质量; if ( Ok != grap->SetTextRenderingHint(TextRenderingHintAntiAlias)) goto clear; // 在画布上画原始图片; if ( Ok != grap->DrawImage(pImg, 0, 0, pImg->GetWidth(), pImg->GetHeight()) ) goto clear; // 设置透明颜色为水印图片四角底色,水印图显示为圆角; if ( Ok != ImgAttr.SetColorKey(0xFF00FF00, 0xFF00FF00, ColorAdjustTypeBitmap)) goto clear; // 设置水印图片透明底为0.3; if ( Ok != ImgAttr.SetColorMatrix(&_ClrMatrix, ColorMatrixFlagsDefault, ColorAdjustTypeBitmap) ) goto clear; // 在画布左上角画水印; if ( Ok != grap->DrawImage(pWatemarkImg, layWatemarkRect, 0, 0, pWatemarkImg->GetWidth(), pWatemarkImg->GetHeight(), UnitPixel, &ImgAttr) ) goto clear; if ( grap ) delete grap; return pBitmap; clear: if ( grap ) delete grap; if ( pBitmap ) delete pBitmap; if ( pWatemarkImg ) delete pWatemarkImg; return NULL; } Image* IMGCommon::AppendImgWatermark(IN LPCTSTR lpImgpath, IN Image* pWatemarkImg) { if ( !PathFileExists(lpImgpath) || pWatemarkImg == NULL ) return FALSE; #ifdef UNICODE Image *pImg = Image::FromFile(lpImgpath); #else BSTR str = _bstr_t(lpImgpath); Image* pImg = Image::FromFile(str); SysFreeString(str); #endif if ( pImg == NULL ) return NULL; //Status st = GenericError; // 创建图像显示属性对象; ImageAttributes ImgAttr; // 创建新位图; Bitmap *pBitmap = ::new Bitmap(pImg->GetWidth(), pImg->GetHeight(), PixelFormat32bppPARGB); // 创建水印图显示位置; RectF layWatemarkRect(10.0, 10.0, pWatemarkImg->GetWidth(), pWatemarkImg->GetHeight()); // 创建画布对象; Graphics *grap = Graphics::FromImage(pBitmap); // 绘制画布底色; if ( Ok != grap->Clear(Color(255,255,255,255)) ) goto clear; // 设置图片显示质量; if ( Ok != grap->SetSmoothingMode(SmoothingModeAntiAlias) ) goto clear; // 设置文本质量; if ( Ok != grap->SetTextRenderingHint(TextRenderingHintAntiAlias)) goto clear; // 在画布上画原始图片; if ( Ok != grap->DrawImage(pImg, 0, 0, pImg->GetWidth(), pImg->GetHeight()) ) goto clear; // 设置透明颜色为水印图片四角底色,水印图显示为圆角; if ( Ok != ImgAttr.SetColorKey(0xFF00FF00, 0xFF00FF00, ColorAdjustTypeBitmap)) goto clear; // 设置水印图片透明底为0.3; if ( Ok != ImgAttr.SetColorMatrix(&_ClrMatrix, ColorMatrixFlagsDefault, ColorAdjustTypeBitmap) ) goto clear; // 在画布左上角画水印; if ( Ok != grap->DrawImage(pWatemarkImg, layWatemarkRect, 0, 0, pWatemarkImg->GetWidth(), pWatemarkImg->GetHeight(), UnitPixel, &ImgAttr) ) goto clear; if ( grap ) delete grap; return pBitmap; clear: if ( grap ) delete grap; if ( pBitmap ) delete pBitmap; if ( pImg ) delete pImg; return NULL; } Image* IMGCommon::AppendImgWatermark(IN LPCTSTR lpImgpath, IN LPCTSTR lpWatemarkImgpath) { if ( !PathFileExists(lpImgpath) || !PathFileExists(lpWatemarkImgpath) ) return FALSE; #ifdef UNICODE Image *pImg = Image::FromFile(lpImgpath); Image *pWatemarkImg = Image::FromFile(lpWatemarkImgpath); #else BSTR str = _bstr_t(lpImgpath); Image* pImg = Image::FromFile(str); SysFreeString(str); BSTR str2 = _bstr_t(lpWatemarkImgpath); Image* pWatemarkImg = Image::FromFile(str2); SysFreeString(str2); #endif if ( pImg == NULL || pWatemarkImg == NULL ) return NULL; //Status st = GenericError; // 创建图像显示属性对象; ImageAttributes ImgAttr; // 创建新位图; Bitmap *pBitmap = ::new Bitmap(pImg->GetWidth(), pImg->GetHeight(), PixelFormat32bppPARGB); // 创建水印图显示位置; RectF layWatemarkRect(10.0, 10.0, pWatemarkImg->GetWidth(), pWatemarkImg->GetHeight()); // 创建画布对象; Graphics *grap = Graphics::FromImage(pBitmap); // 绘制画布底色; if ( Ok != grap->Clear(Color(255,255,255,255)) ) goto clear; // 设置图片显示质量; if ( Ok != grap->SetSmoothingMode(SmoothingModeAntiAlias) ) goto clear; // 设置文本质量; if ( Ok != grap->SetTextRenderingHint(TextRenderingHintAntiAlias)) goto clear; // 在画布上画原始图片; if ( Ok != grap->DrawImage(pImg, 0, 0, pImg->GetWidth(), pImg->GetHeight()) ) goto clear; // 设置透明颜色为水印图片四角底色,水印图显示为圆角; if ( Ok != ImgAttr.SetColorKey(0xFF00FF00, 0xFF00FF00, ColorAdjustTypeBitmap)) goto clear; // 设置水印图片透明底为0.3; if ( Ok != ImgAttr.SetColorMatrix(&_ClrMatrix, ColorMatrixFlagsDefault, ColorAdjustTypeBitmap) ) goto clear; // 在画布左上角画水印; if ( Ok != grap->DrawImage(pWatemarkImg, layWatemarkRect, 0, 0, pWatemarkImg->GetWidth(), pWatemarkImg->GetHeight(), UnitPixel, &ImgAttr) ) goto clear; if ( grap ) delete grap; return pBitmap; clear: if ( grap ) delete grap; if ( pBitmap ) delete pBitmap; if ( pImg ) delete pImg; if ( pWatemarkImg ) delete pWatemarkImg; return NULL; } BOOL IMGCommon::AppendImgWatermark(IN Image* pImg, IN Image* pWatemarkImg, IN LPCTSTR lpSaveImgpath) { Image* pSaveImg = AppendImgWatermark(pImg, pWatemarkImg); if ( pSaveImg == NULL ) return FALSE; // 创建新的目录; CString strImgs = lpSaveImgpath; INT nIndex = strImgs.ReverseFind(_T('\\')); if ( nIndex != -1 ) { strImgs = strImgs.Mid(0,nIndex+1); if ( !PathFileExists(strImgs) ) { #if 0 if ( CreateDirectoryEx(strImgs) ) #else if (SHCreateDirectoryEx(NULL, strImgs, NULL)) #endif { if (SaveImg2newfile(pSaveImg, (CString)lpSaveImgpath, 100)) { if ( pSaveImg ) delete pSaveImg; pSaveImg = NULL; return TRUE; } return FALSE; } } } return FALSE; } BOOL IMGCommon::AppendImgWatermark(IN LPCTSTR lpImgpath, IN LPCTSTR lpWatemarkImgpath, IN LPCTSTR lpSaveImgpath) { Image *pSaveImg = AppendImgWatermark(lpImgpath, lpWatemarkImgpath); if ( pSaveImg == NULL) return FALSE; // 创建新的目录; CString strImgs = lpSaveImgpath; INT nIndex = strImgs.ReverseFind(_T('\\')); if ( nIndex != -1 ) { strImgs = strImgs.Mid(0,nIndex+1); if ( !PathFileExists(strImgs) ) { #if 0 if (CreateDirectoryEx(strImgs)) #else if (SHCreateDirectoryEx(NULL, strImgs, NULL)) #endif { if (SaveImg2newfile(pSaveImg, (CString)lpSaveImgpath, 100)) { if ( pSaveImg ) delete pSaveImg; pSaveImg = NULL; return TRUE; } return FALSE; } } } return FALSE; } Image* IMGCommon::AppendWordWatermark(IN Image* pImg, IN LPCTSTR lpWatemarkString) { if ( pImg == NULL || lpWatemarkString == NULL || lpWatemarkString[0] == _T('\0')) return NULL; #ifndef UNICODE WCHAR* pText = CharEncoding::ASCII2UNICODE(lpWatemarkString); #endif // 创建新位图; Bitmap *pBitmap = ::new Bitmap(pImg->GetWidth(), pImg->GetHeight(), PixelFormat32bppPARGB); // 创建字体; FontFamily ffly(L"宋体"); Gdiplus::Font ft(&ffly, 24, FontStyleRegular, UnitPixel); // 创建画刷; SolidBrush brush(0x99000000); // 创建文本格式; StringFormat sf; sf.SetAlignment(StringAlignmentCenter); // 水平居中; // 创建水印文本显示位置; RectF layWatemarkRect(pImg->GetWidth(), pImg->GetHeight() - 25, 0.0, 0.0); // 文字阴影; RectF layWatemarkRect2(pImg->GetWidth(), pImg->GetHeight() - 26, 0.0, 0.0); // 文字原体; // 创建画布对象; Graphics *grap = Graphics::FromImage(pBitmap); // 绘制画布底色; if ( Ok != grap->Clear(Color(255,255,255,255)) ) goto clear; // 设置图片显示质量; if ( Ok != grap->SetSmoothingMode(SmoothingModeAntiAlias) ) goto clear; // 设置文本质量; if ( Ok != grap->SetTextRenderingHint(TextRenderingHintAntiAlias)) goto clear; // 在画布上画原始图片; if ( Ok != grap->DrawImage(pImg, 0, 0, pImg->GetWidth(), pImg->GetHeight()) ) goto clear; // 画水印阴影; #ifdef UNICODE if ( Ok != grap->DrawString(lpWatemarkString, wcslen(lpWatemarkString), &ft, layWatemarkRect, &sf, &brush) ) #else if ( Ok != grap->DrawString(pText, wcslen(pText), &ft, layWatemarkRect, &sf, &brush) ) #endif goto clear; // 画水印文本; brush.SetColor(0x99ffffff); #ifdef UNICODE if ( Ok != grap->DrawString(lpWatemarkString, wcslen(lpWatemarkString), &ft, layWatemarkRect2, &sf, &brush) ) #else if ( Ok != grap->DrawString(pText, wcslen(pText), &ft, layWatemarkRect, &sf, &brush) ) #endif goto clear; if ( grap ) delete grap; return pBitmap; clear: if ( grap ) delete grap; if ( pBitmap ) delete pBitmap; if ( pImg ) delete pImg; #ifndef UNICODE if (pText) delete []pText; #endif return NULL; } Image* IMGCommon::AppendWordWatermark(IN LPCTSTR lpImgpath, IN LPCTSTR lpWatemarkString) { if ( !PathFileExists(lpImgpath) || lpWatemarkString == NULL || lpWatemarkString[0] == _T('\0')) return NULL; #ifdef UNICODE Image *pImg = Image::FromFile(lpImgpath); #else BSTR str = _bstr_t(lpImgpath); Image* pImg = Image::FromFile(str); SysFreeString(str); #endif #ifndef UNICODE WCHAR* pText = CharEncoding::ASCII2UNICODE(lpWatemarkString); #endif // 创建新位图; Bitmap *pBitmap = ::new Bitmap(pImg->GetWidth(), pImg->GetHeight(), PixelFormat32bppPARGB); // 创建字体; FontFamily ffly(L"宋体"); Gdiplus::Font ft(&ffly, 24, FontStyleRegular, UnitPixel); // 创建画刷; SolidBrush brush(0x99000000); // 创建文本格式; StringFormat sf; sf.SetAlignment(StringAlignmentCenter); // 水平居中; // 创建水印文本显示位置; RectF layWatemarkRect(pImg->GetWidth(), pImg->GetHeight() - 25, 0.0, 0.0); // 文字阴影; RectF layWatemarkRect2(pImg->GetWidth(), pImg->GetHeight() - 26, 0.0, 0.0); // 文字原体; // 创建画布对象; Graphics *grap = Graphics::FromImage(pBitmap); // 绘制画布底色; if ( Ok != grap->Clear(Color(255,255,255,255)) ) goto clear; // 设置图片显示质量; if ( Ok != grap->SetSmoothingMode(SmoothingModeAntiAlias) ) goto clear; // 设置文本质量; if ( Ok != grap->SetTextRenderingHint(TextRenderingHintAntiAlias)) goto clear; // 在画布上画原始图片; if ( Ok != grap->DrawImage(pImg, 0, 0, pImg->GetWidth(), pImg->GetHeight()) ) goto clear; // 画水印阴影; #ifdef UNICODE if ( Ok != grap->DrawString(lpWatemarkString, wcslen(lpWatemarkString), &ft, layWatemarkRect, &sf, &brush) ) #else if ( Ok != grap->DrawString(pText, wcslen(pText), &ft, layWatemarkRect, &sf, &brush) ) #endif goto clear; // 画水印文本; brush.SetColor(0x99ffffff); #ifdef UNICODE if ( Ok != grap->DrawString(lpWatemarkString, wcslen(lpWatemarkString), &ft, layWatemarkRect2, &sf, &brush) ) #else if ( Ok != grap->DrawString(pText, wcslen(pText), &ft, layWatemarkRect, &sf, &brush) ) #endif goto clear; if ( grap ) delete grap; return pBitmap; clear: if ( grap ) delete grap; if ( pBitmap ) delete pBitmap; if ( pImg ) delete pImg; #ifndef UNICODE if (pText) delete []pText; #endif return NULL; } BOOL IMGCommon::SaveBitmap(IN CDC *pDC, IN CBitmap* pBitmap, IN CONST INT& nBitdepth, IN const INT& nWidth, IN const INT& nHeight, IN LPCTSTR lpSavepath) { // 计算出位图大小 = ((宽 * 位宽 + 31)/ 32)* 4 * 高; DWORD dwBmpSize = ((nWidth*nBitdepth + 31) / 32) * 4 * nHeight; HANDLE hFile = CreateFile(lpSavepath, GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) { //WriteLog(_T("二维码位图创建失败")); return FALSE; } HANDLE hFileMapping = CreateFileMapping(hFile, NULL, PAGE_READWRITE | SEC_COMMIT, 0, sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 2 + dwBmpSize, NULL); LPBYTE lpbyMapView = (LPBYTE)MapViewOfFile(hFileMapping, FILE_MAP_WRITE, 0, 0, 0); ZeroMemory(lpbyMapView, sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 2 + dwBmpSize); //结构体地址割付; LPBITMAPFILEHEADER pbfh = (LPBITMAPFILEHEADER)lpbyMapView; LPBITMAPINFO pbmi = (LPBITMAPINFO)(lpbyMapView + sizeof(BITMAPFILEHEADER)); LPVOID pbdt = lpbyMapView + sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 2; // BITMAPFILEHEADER //pbfh->bfType = (WORD) (('M' << 8) | 'B'); // "BM" // BMP类型,与上面同值; pbfh->bfType = 0x4D42; pbfh->bfSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 2 + dwBmpSize; // 文件总长; pbfh->bfReserved1 = 0; pbfh->bfReserved2 = 0; pbfh->bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 2; // 位图数据相对于文件头的偏移量; // LPBITMAPINFO->BITMAPINFOHEADER pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); pbmi->bmiHeader.biWidth = nWidth; pbmi->bmiHeader.biHeight = nHeight; pbmi->bmiHeader.biPlanes = 1; pbmi->bmiHeader.biBitCount = nBitdepth; // 位深度 1; pbmi->bmiHeader.biCompression = BI_RGB; pbmi->bmiHeader.biSizeImage = dwBmpSize; pbmi->bmiHeader.biXPelsPerMeter = 3780; pbmi->bmiHeader.biYPelsPerMeter = 3780; pbmi->bmiHeader.biClrUsed = 0; pbmi->bmiHeader.biClrImportant = 0; // 放大到指定的像素宽高; CDC* pWorkDC = new CDC; pWorkDC->CreateCompatibleDC(NULL); CBitmap* pWorkBitmap = new CBitmap; pWorkBitmap->CreateBitmap(nWidth, nHeight, 1, 1, NULL); CBitmap* pOldBitmap = pWorkDC->SelectObject(pWorkBitmap); pWorkDC->StretchBlt(0, 0, nWidth, nHeight, pDC, 0, 0, nWidth, nHeight, SRCCOPY); GetDIBits(pWorkDC->m_hDC, (HBITMAP)*pWorkBitmap, 0, nHeight, pbdt, pbmi, DIB_RGB_COLORS); pWorkDC->SelectObject(pOldBitmap); delete pWorkBitmap; delete pWorkDC; UnmapViewOfFile(lpbyMapView); CloseHandle(hFileMapping); CloseHandle(hFile); return TRUE; } BOOL IMGCommon::SaveBitmap2(IN CDC *pDC, IN CBitmap* pBitmap, IN CONST INT& nBitdepth, IN const INT& nWidth, IN const INT& nHeight, IN LPCTSTR lpSavepath) { DWORD dwPaletteSize = 0; //调色板大小; DWORD dwbmdibitSize = 0; WORD wbitsCount = 0; //位图中每个像素所占字节数; if( nBitdepth <= 1 ) wbitsCount = 1; if( nBitdepth <= 4 ) wbitsCount = 4; if( nBitdepth <= 8 ) wbitsCount = 8; if( nBitdepth <= 16 ) wbitsCount = 16; if( nBitdepth <= 24 ) wbitsCount = 24; else wbitsCount = 32; if( wbitsCount <= 8 ) dwPaletteSize = (1 << wbitsCount) * sizeof(RGBQUAD); // 计算出位图大小 = ((宽 * 位宽 + 31)/ 32)* 4 * 高; DWORD dwBmpSize = ((nWidth*wbitsCount + 31) / 8) * nHeight; HANDLE hFile = CreateFile(lpSavepath, GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) { //WriteLog(_T("二维码位图创建失败")); return FALSE; } HANDLE hFileMapping = CreateFileMapping(hFile, NULL, PAGE_READWRITE | SEC_COMMIT, 0, //sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 2 + dwBmpSize, NULL); sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmpSize, NULL); LPBYTE lpbyMapView = (LPBYTE)MapViewOfFile(hFileMapping, FILE_MAP_WRITE, 0, 0, 0); //ZeroMemory(lpbyMapView, sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 2 + dwBmpSize); ZeroMemory(lpbyMapView, sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmpSize); //结构体地址割付; LPBITMAPFILEHEADER pbfh = (LPBITMAPFILEHEADER)lpbyMapView; LPBITMAPINFO pbmi = (LPBITMAPINFO)(lpbyMapView + sizeof(BITMAPFILEHEADER)); LPVOID pbdt = lpbyMapView + sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmpSize; // BITMAPFILEHEADER //pbfh->bfType = (WORD) (('M' << 8) | 'B'); // "BM" // BMP类型,与上面同值; pbfh->bfType = 0x4D42; pbfh->bfSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmpSize; // 文件总长; pbfh->bfReserved1 = 0; pbfh->bfReserved2 = 0; pbfh->bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize; // 位图数据相对于文件头的偏移量; // LPBITMAPINFO->BITMAPINFOHEADER pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); pbmi->bmiHeader.biWidth = nWidth; pbmi->bmiHeader.biHeight = nHeight; pbmi->bmiHeader.biPlanes = 1; pbmi->bmiHeader.biBitCount = wbitsCount; // 位深度 1; pbmi->bmiHeader.biCompression = BI_RGB; pbmi->bmiHeader.biSizeImage = dwBmpSize; pbmi->bmiHeader.biXPelsPerMeter = 3780; pbmi->bmiHeader.biYPelsPerMeter = 3780; pbmi->bmiHeader.biClrUsed = 0; pbmi->bmiHeader.biClrImportant = 0; // 放大到指定的像素宽高; CDC* pWorkDC = new CDC; pWorkDC->CreateCompatibleDC(NULL); CBitmap* pWorkBitmap = new CBitmap; pWorkBitmap->CreateBitmap(nWidth, nHeight, 1, 1, NULL); CBitmap* pOldBitmap = pWorkDC->SelectObject(pWorkBitmap); pWorkDC->StretchBlt(0, 0, nWidth, nHeight, pDC, 0, 0, nWidth, nHeight, SRCCOPY); GetDIBits(pWorkDC->m_hDC, (HBITMAP)*pWorkBitmap, 0, nHeight, pbdt, pbmi, DIB_RGB_COLORS); pWorkDC->SelectObject(pOldBitmap); delete pWorkBitmap; delete pWorkDC; UnmapViewOfFile(lpbyMapView); CloseHandle(hFileMapping); CloseHandle(hFile); return TRUE; } void IMGCommon::DrawString(IN CDC* pdc, IN CONST INT& nFontSize, IN LPCTSTR lpFontName, IN LPCTSTR lpString, IN OUT CRect &rcString) { if ( !pdc || !lpString ) return; LOGFONT log; // 设置字体字号; log.lfHeight = -MulDiv(nFontSize ? nFontSize : 9, GetDeviceCaps(pdc->GetSafeHdc(), LOGPIXELSY), 72); log.lfWidth = 0; log.lfEscapement = 0; log.lfOrientation = 0; log.lfWeight = FW_REGULAR; log.lfItalic = false; log.lfUnderline = false; log.lfStrikeOut = 0; log.lfCharSet = ANSI_CHARSET; log.lfOutPrecision = OUT_DEFAULT_PRECIS; log.lfClipPrecision = CLIP_DEFAULT_PRECIS; log.lfQuality = DEFAULT_QUALITY; log.lfPitchAndFamily = DEFAULT_PITCH || FF_ROMAN; // 设置字体名称; _tcscpy_s(log.lfFaceName, (lpFontName && (lpFontName[0] != _T('\0'))) ? lpFontName : _T("Arial")); CFont cf; cf.CreateFontIndirect(&log); CFont *oldf = pdc->SelectObject(&cf); SIZE Size; GetTextExtentPoint32(pdc->GetSafeHdc(), lpString, _tcslen(lpString), &Size); rcString.SetRect(rcString.left, rcString.top, Size.cx + rcString.left, Size.cy + rcString.top); pdc->TextOut(rcString.left, rcString.top, lpString); }