C++ (Cpp) tmpFileScope Examples

Example #1

File: PsEngine.cpp Project: xuxiandi/sumatrapdf

static BaseEngine *psgz2pdf(const WCHAR *fileName)
{
    ScopedMem<WCHAR> tmpFile(path::GetTempPath(L"PsE"));
    ScopedFile tmpFileScope(tmpFile);
    if (!tmpFile)
        return NULL;

    gzFile inFile = gzopen_w(fileName, "rb");
    if (!inFile)
        return NULL;
    FILE *outFile = NULL;
    errno_t err = _wfopen_s(&outFile, tmpFile, L"wb");
    if (err != 0 || !outFile) {
        gzclose(inFile);
        return NULL;
    }

    char buffer[12*1024];
    for (;;) {
        int len = gzread(inFile, buffer, sizeof(buffer));
        if (len <= 0)
            break;
        fwrite(buffer, 1, len, outFile);
    }
    fclose(outFile);
    gzclose(inFile);

    return ps2pdf(tmpFile);
}

Example #2

File: PsEngine.cpp Project: xuxiandi/sumatrapdf

static BaseEngine *ps2pdf(const WCHAR *fileName)
{
    // TODO: read from gswin32c's stdout instead of using a TEMP file
    ScopedMem<WCHAR> shortPath(path::ShortPath(fileName));
    ScopedMem<WCHAR> tmpFile(path::GetTempPath(L"PsE"));
    ScopedFile tmpFileScope(tmpFile);
    ScopedMem<WCHAR> gswin32c(GetGhostscriptPath());
    if (!shortPath || !tmpFile || !gswin32c)
        return NULL;

    // try to help Ghostscript determine the intended page size
    ScopedMem<WCHAR> psSetup;
    RectI page = ExtractDSCPageSize(fileName);
    if (!page.IsEmpty())
        psSetup.Set(str::Format(L" << /PageSize [%i %i] >> setpagedevice", page.dx, page.dy));

    ScopedMem<WCHAR> cmdLine(str::Format(
        L"\"%s\" -q -dSAFER -dNOPAUSE -dBATCH -dEPSCrop -sOutputFile=\"%s\" -sDEVICE=pdfwrite -c \".setpdfwrite%s\" -f \"%s\"",
        gswin32c, tmpFile, psSetup ? psSetup : L"", shortPath));
    fprintf(stderr, "- %s:%d: using '%ls' for creating '%%TEMP%%\\%ls'\n", path::GetBaseName(__FILE__), __LINE__, gswin32c.Get(), path::GetBaseName(tmpFile));

    // TODO: the PS-to-PDF conversion can hang the UI for several seconds
    HANDLE process = LaunchProcess(cmdLine, NULL, CREATE_NO_WINDOW);
    if (!process)
        return NULL;

    DWORD timeout = 10000;
#ifdef DEBUG
    // allow to disable the timeout for debugging purposes
    if (GetEnvironmentVariable(L"SUMATRAPDF_NO_GHOSTSCRIPT_TIMEOUT", NULL, 0))
        timeout = INFINITE;
#endif
    DWORD exitCode = EXIT_FAILURE;
    WaitForSingleObject(process, timeout);
    GetExitCodeProcess(process, &exitCode);
    TerminateProcess(process, 1);
    CloseHandle(process);
    if (exitCode != EXIT_SUCCESS)
        return NULL;

    size_t len;
    ScopedMem<char> pdfData(file::ReadAll(tmpFile, &len));
    if (!pdfData)
        return NULL;

    ScopedComPtr<IStream> stream(CreateStreamFromData(pdfData, len));
    if (!stream)
        return NULL;

    return PdfEngine::CreateFromStream(stream);
}

Example #3

File: PsEngine.cpp Project: Livit/moonpdf

static PdfEngine *ps2pdf(const WCHAR *fileName)
{
    // TODO: read from gswin32c's stdout instead of using a TEMP file
    ScopedMem<WCHAR> shortPath(path::ShortPath(fileName));
    ScopedMem<WCHAR> tmpFile(path::GetTempPath(L"PsE"));
    ScopedFile tmpFileScope(tmpFile);
    ScopedMem<WCHAR> gswin32c(GetGhostscriptPath());
    if (!shortPath || !tmpFile || !gswin32c)
        return NULL;
    ScopedMem<WCHAR> cmdLine(str::Format(L"\"%s\" -q -dSAFER -dNOPAUSE -dBATCH -dEPSCrop -sOutputFile=\"%s\" -sDEVICE=pdfwrite -c .setpdfwrite -f \"%s\"", gswin32c, tmpFile, shortPath));

    if (GetEnvironmentVariable(L"MULOG", NULL, 0)) {
        wprintf(L"ps2pdf: using Ghostscript from '%s'\n", gswin32c.Get());
        wprintf(L"ps2pdf: for creating '%s'\n", tmpFile.Get());
    }

    // TODO: the PS-to-PDF conversion can hang the UI for several seconds
    HANDLE process = LaunchProcess(cmdLine, NULL, CREATE_NO_WINDOW);
    if (!process)
        return NULL;

    DWORD exitCode = EXIT_FAILURE;
    WaitForSingleObject(process, 10000);
    GetExitCodeProcess(process, &exitCode);
    TerminateProcess(process, 1);
    CloseHandle(process);
    if (exitCode != EXIT_SUCCESS)
        return NULL;

    size_t len;
    ScopedMem<char> pdfData(file::ReadAll(tmpFile, &len));
    if (!pdfData)
        return NULL;

    ScopedComPtr<IStream> stream(CreateStreamFromData(pdfData, len));
    if (!stream)
        return NULL;

    if (GetEnvironmentVariable(L"MULOG", NULL, 0))
        printf("ps2pdf: PDF conversion successful\n");

    return PdfEngine::CreateFromStream(stream);
}