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-rw-r--r--vcl/source/pdf/ExternalPDFStreams.cxx42
1 files changed, 42 insertions, 0 deletions
diff --git a/vcl/source/pdf/ExternalPDFStreams.cxx b/vcl/source/pdf/ExternalPDFStreams.cxx
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+++ b/vcl/source/pdf/ExternalPDFStreams.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <pdf/ExternalPDFStreams.hxx>
+#include <comphelper/hash.hxx>
+
+namespace vcl
+{
+sal_Int32 ExternalPDFStreams::store(BinaryDataContainer const& rDataContainer)
+{
+ sal_Int32 nIndex = -1;
+
+ std::vector<sal_uInt8> aHash = comphelper::Hash::calculateHash(
+ rDataContainer.getData(), rDataContainer.getSize(), comphelper::HashType::SHA1);
+
+ auto it = maStreamIndexMap.find(aHash);
+ if (it == maStreamIndexMap.end())
+ {
+ auto& rExternalStream = maStreamList.emplace_back();
+ rExternalStream.maDataContainer = rDataContainer;
+ nIndex = maStreamList.size() - 1;
+ maStreamIndexMap.emplace(aHash, nIndex);
+ }
+ else
+ {
+ nIndex = it->second;
+ }
+
+ return nIndex;
+}
+
+ExternalPDFStream& ExternalPDFStreams::get(sal_uInt32 nIndex) { return maStreamList.at(nIndex); }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */