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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvisvgm/src/MiKTeXCom.cpp
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diff --git a/dviware/dvisvgm/src/MiKTeXCom.cpp b/dviware/dvisvgm/src/MiKTeXCom.cpp
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+/*************************************************************************
+** MiKTeXCom.cpp **
+** **
+** This file is part of dvisvgm -- a fast DVI to SVG converter **
+** Copyright (C) 2005-2019 Martin Gieseking <martin.gieseking@uos.de> **
+** **
+** This program is free software; you can redistribute it and/or **
+** modify it under the terms of the GNU General Public License as **
+** published by the Free Software Foundation; either version 3 of **
+** the License, or (at your option) any later version. **
+** **
+** This program is distributed in the hope that it will be useful, but **
+** WITHOUT ANY WARRANTY; without even the implied warranty of **
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
+** GNU General Public License for more details. **
+** **
+** You should have received a copy of the GNU General Public License **
+** along with this program; if not, see <http://www.gnu.org/licenses/>. **
+*************************************************************************/
+
+#include <comdef.h>
+#include <string>
+#include "MessageException.hpp"
+#include "MiKTeXCom.hpp"
+
+using namespace std;
+
+
+/** Constructs a COM object representing a MiKTeX session. */
+MiKTeXCom::MiKTeXCom () : _session() {
+ if (FAILED(CoInitialize(nullptr)))
+ throw MessageException("COM library could not be initialized\n");
+ // try to initialize the MiKTeX session object
+#ifdef _MSC_VER
+ HRESULT hres = _session.CreateInstance(L"MiKTeX.Session");
+#elif defined(_WIN64)
+ HRESULT hres = CoCreateInstance(CLSID_MiKTeXSession2_9, 0, CLSCTX_LOCAL_SERVER, IID_ISession2, (void**)&_session);
+#else
+ HRESULT hres = CoCreateInstance(CLSID_MiKTeXSession2_9, 0, CLSCTX_INPROC_SERVER, IID_ISession2, (void**)&_session);
+#endif
+ if (FAILED(hres)) {
+ CoUninitialize();
+ throw MessageException("MiKTeX session could not be initialized");
+ }
+}
+
+
+MiKTeXCom::~MiKTeXCom () {
+ if (_session) {
+#ifdef _MSC_VER
+ _session.Release();
+#else
+ _session->Release();
+#endif
+ _session = nullptr; // prevent automatic call of Release() after CoUninitialize()
+ }
+ CoUninitialize();
+}
+
+
+/** Returns the MiKTeX version number. */
+string MiKTeXCom::getVersion () {
+#ifdef _MSC_VER
+ MiKTeXSetupInfo info = _session->GetMiKTeXSetupInfo();
+#else
+ MiKTeXSetupInfo info;
+ _session->GetMiKTeXSetupInfo(&info);
+#endif
+ _bstr_t version = info.version;
+ return string(version);
+}
+
+
+/** Returns the path of the directory where the MiKTeX binaries are located. */
+string MiKTeXCom::getBinDir () {
+#ifdef _MSC_VER
+ MiKTeXSetupInfo info = _session->GetMiKTeXSetupInfo();
+#else
+ MiKTeXSetupInfo info;
+ _session->GetMiKTeXSetupInfo(&info);
+#endif
+ _bstr_t bindir = info.binDirectory;
+ return string(bindir);
+}
+
+
+/** Try to lookup a given file in the MiKTeX directory tree.
+ * @param[in] fname name of file to lookup
+ * @return path of the file or 0 if it can't be found */
+const char* MiKTeXCom::findFile (const char *fname) {
+ try {
+ _bstr_t path;
+ static string ret;
+#ifdef _MSC_VER
+ HRESULT hres = _session->FindFile(fname, path.GetAddress());
+ bool found = (hres != 0);
+#else
+ VARIANT_BOOL found_var;
+ _session->FindFile(_bstr_t(fname), path.GetAddress(), &found_var);
+ bool found = (found_var == VARIANT_TRUE);
+#endif
+ if (found) {
+ ret = _bstr_t(path);
+ return ret.c_str();
+ }
+ return nullptr;
+ }
+ catch (_com_error &e) {
+ throw MessageException((const char*)e.Description());
+ }
+}