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, 69 insertions, 0 deletions

diff --git a/include/svtools/imageresourceaccess.hxx b/include/svtools/imageresourceaccess.hxx
new file mode 100644
index 000000000..ca76c0909
--- /dev/null
+++ b/include/svtools/imageresourceaccess.hxx
@@ -0,0 +1,69 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <memory>
+#include <string_view>
+
+#include <config_options.h>
+#include <svtools/svtdllapi.h>
+
+#include <com/sun/star/uno/Reference.hxx>
+
+namespace com :: sun :: star :: io { class XInputStream; }
+namespace com :: sun :: star :: uno { class XComponentContext; }
+
+class SvStream;
+
+namespace svt::GraphicAccess
+{
+
+/** Helpers for obtaining streams (which also can be used with the ImageProducer)
+    from a resource.
+*/
+
+/** determines whether the given URL denotes an image within a resource */
+UNLESS_MERGELIBS(SVT_DLLPUBLIC) bool isSupportedURL(std::u16string_view rURL);
+
+/** for a given URL of an image within a resource, this method retrieves an
+    SvStream for this image.
+
+    This method works for arbitrary URLs denoting an image, since the
+    css::graphics::GraphicsProvider service is used
+    to resolve the URL. However, obtaining the stream is expensive (since
+    the image must be copied), so you are strongly encouraged to only use it
+    when you know that the image is small enough.
+*/
+UNLESS_MERGELIBS(SVT_DLLPUBLIC) std::unique_ptr<SvStream> getImageStream(
+            css::uno::Reference<css::uno::XComponentContext> const & rxContext,
+            OUString const & rImageResourceURL);
+
+/** for a given URL of an image within a resource, this method retrieves
+    a css::io::XInputStream for this image.
+*/
+UNLESS_MERGELIBS(SVT_DLLPUBLIC) css::uno::Reference<css::io::XInputStream> getImageXStream(
+            css::uno::Reference<css::uno::XComponentContext> const & rxContext,
+            OUString const & rImageResourceURL);
+
+} // namespace svt::GraphicAccess
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */