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, 65 insertions, 0 deletions

diff --git a/vcl/inc/pdf/objectcopier.hxx b/vcl/inc/pdf/objectcopier.hxx
new file mode 100644
index 000000000..f9b05725c
--- /dev/null
+++ b/vcl/inc/pdf/objectcopier.hxx
@@ -0,0 +1,65 @@
+/* -*- 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 <map>
+#include <vector>
+
+#include <rtl/strbuf.hxx>
+#include <rtl/string.hxx>
+#include <sal/types.h>
+#include <vcl/dllapi.h>
+
+class SvMemoryStream;
+
+namespace vcl
+{
+class PDFObjectContainer;
+namespace filter
+{
+class PDFObjectElement;
+class PDFElement;
+}
+
+/// Copies objects from one PDF file into another one.
+class PDFObjectCopier
+{
+    PDFObjectContainer& m_rContainer;
+
+    void copyRecursively(OStringBuffer& rLine, filter::PDFElement& rInputElement,
+                         SvMemoryStream& rDocBuffer,
+                         std::map<sal_Int32, sal_Int32>& rCopiedResources);
+
+public:
+    PDFObjectCopier(PDFObjectContainer& rContainer);
+
+    /// Copies resources of a given kind from an external page to the output,
+    /// returning what has to be included in the new resource dictionary.
+    OString copyExternalResources(filter::PDFObjectElement& rPage, const OString& rKind,
+                                  std::map<sal_Int32, sal_Int32>& rCopiedResources);
+
+    /// Copies a single resource from an external document, returns the new
+    /// object ID in our document.
+    sal_Int32 copyExternalResource(SvMemoryStream& rDocBuffer, filter::PDFObjectElement& rObject,
+                                   std::map<sal_Int32, sal_Int32>& rCopiedResources);
+
+    /// Copies resources of pPage into rLine.
+    void copyPageResources(filter::PDFObjectElement* pPage, OStringBuffer& rLine);
+
+    void copyPageResources(filter::PDFObjectElement* pPage, OStringBuffer& rLine,
+                           std::map<sal_Int32, sal_Int32>& rCopiedResources);
+
+    /// Copies page one or more page streams from rContentStreams into rStream.
+    static sal_Int32 copyPageStreams(std::vector<filter::PDFObjectElement*>& rContentStreams,
+                                     SvMemoryStream& rStream, bool& rCompressed);
+};
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */