Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 72 insertions, 0 deletions

diff --git a/include/vcl/BinaryDataContainer.hxx b/include/vcl/BinaryDataContainer.hxx
new file mode 100644
index 0000000000..72bd852281
--- /dev/null
+++ b/include/vcl/BinaryDataContainer.hxx
@@ -0,0 +1,72 @@
+/* -*- 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/.
+ *
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/io/XInputStream.hpp>
+#include <unotools/tempfile.hxx>
+#include <tools/stream.hxx>
+#include <vcl/dllapi.h>
+
+#include <vector>
+#include <memory>
+
+/** Container for the binary data, whose responsibility is to manage the
+ *  make it as simple as possible to manage the binary data. The binary
+ *  data can be anything, but typically it is a in-memory data from
+ *  files (i.e. files of graphic formats).
+ */
+class VCL_DLLPUBLIC BinaryDataContainer final
+{
+    struct Impl;
+
+    std::shared_ptr<Impl> mpImpl;
+
+    void ensureSwappedIn() const;
+
+public:
+    BinaryDataContainer() = default;
+    BinaryDataContainer(SvStream& stream, size_t size);
+
+    BinaryDataContainer(const BinaryDataContainer& rBinaryDataContainer) = default;
+
+    BinaryDataContainer(BinaryDataContainer&& rBinaryDataContainer) noexcept = default;
+
+    BinaryDataContainer& operator=(const BinaryDataContainer& rBinaryDataContainer) = default;
+
+    BinaryDataContainer& operator=(BinaryDataContainer&& rBinaryDataContainer) noexcept = default;
+
+    size_t getSize() const;
+    bool isEmpty() const;
+    const sal_uInt8* getData() const;
+    css::uno::Sequence<sal_Int8> getCopyAsByteSequence() const;
+
+    // Returns the data as a readonly stream open for reading
+    std::shared_ptr<SvStream> getAsStream();
+
+    // Returns the data as a readonly stream open for reading
+    css::uno::Reference<css::io::XInputStream> getAsXInputStream();
+
+    /// writes the contents to the given stream
+    std::size_t writeToStream(SvStream& rStream) const;
+
+    /// return the in-memory size in bytes as of now.
+    std::size_t getSizeBytes() const;
+
+    /// swap out to disk for now
+    void swapOut() const;
+
+    size_t calculateHash() const;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */