Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

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

1 files changed, 60 insertions, 0 deletions

diff --git a/include/vcl/pngwrite.hxx b/include/vcl/pngwrite.hxx
new file mode 100644
index 000000000..de2b1c6e1
--- /dev/null
+++ b/include/vcl/pngwrite.hxx
@@ -0,0 +1,60 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_VCL_PNGWRITE_HXX
+#define INCLUDED_VCL_PNGWRITE_HXX
+
+#include <vcl/dllapi.h>
+#include <memory>
+#include <vector>
+
+namespace com::sun::star::beans { struct PropertyValue; }
+namespace com::sun::star::uno { template <typename > class Sequence; }
+
+class BitmapEx;
+class SvStream;
+
+namespace vcl
+{
+    class PNGWriterImpl;
+
+    class VCL_DLLPUBLIC PNGWriter
+    {
+        const std::unique_ptr<PNGWriterImpl> mpImpl;
+
+    public:
+
+        explicit PNGWriter(const BitmapEx&, const css::uno::Sequence<css::beans::PropertyValue>* pFilterData = nullptr);
+        ~PNGWriter();
+
+        bool Write(SvStream& rStream);
+
+        // additional method to be able to modify all chunk before they are stored
+        struct ChunkData
+        {
+            sal_uInt32                  nType;
+            std::vector<sal_uInt8>    aData;
+        };
+        std::vector<vcl::PNGWriter::ChunkData>& GetChunks();
+    };
+}
+
+#endif // INCLUDED_VCL_PNGWRITE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */