add GraphicLoader and funct. to load graphic from URL

Change-Id: Ib722ee5bc20908d50642b1371b20c878158204cf
Reviewed-on: https://gerrit.libreoffice.org/50538Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Tested-by: Tomaž Vajngerl <quikee@gmail.com>

include/vcl/GraphicLoader.hxx

+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_VCL_GRAPHIC_LOADER_HXX
+#define INCLUDED_VCL_GRAPHIC_LOADER_HXX
+
+#include <vcl/graph.hxx>
+
+namespace vcl
+{
+namespace graphic
+{
+Graphic VCL_DLLPUBLIC loadFromURL(OUString const& rURL);
+}
+} // end vcl::graphic
+
+#endif // INCLUDED_VCL_GRAPHIC_TOOLS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

vcl/Library_vcl.mk

@@ -300,7 +300,8 @@ $(eval $(call gb_Library_add_exception_objects,vcl,\
     vcl/source/gdi/wall \
     vcl/source/gdi/scrptrun \
     vcl/source/gdi/CommonSalLayout \
-	vcl/source/bitmap/bitmap \
+    vcl/source/graphic/GraphicLoader \
+    vcl/source/bitmap/bitmap \
     vcl/source/bitmap/bitmapfilter \
     vcl/source/bitmap/bitmappaint \
     vcl/source/bitmap/bitmapscalesuper \

vcl/source/graphic/GraphicLoader.cxx

+/* -*- 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 <vcl/GraphicLoader.hxx>
+
+#include <comphelper/processfactory.hxx>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/graphic/GraphicProvider.hpp>
+#include <com/sun/star/graphic/XGraphicProvider.hpp>
+//#include <com/sun/star/lang/XUnoTunnel.hpp>
+//#include <com/sun/star/lang/XTypeProvider.hpp>
+#include <com/sun/star/graphic/XGraphic.hpp>
+//#include <cppuhelper/typeprovider.hxx>
+
+using namespace css;
+
+namespace vcl
+{
+namespace graphic
+{
+Graphic loadFromURL(OUString const& rURL)
+{
+    uno::Reference<css::graphic::XGraphic> xGraphic;
+
+    uno::Reference<uno::XComponentContext> xContext(comphelper::getProcessComponentContext());
+    uno::Reference<css::graphic::XGraphicProvider> xProv(
+        css::graphic::GraphicProvider::create(xContext));
+
+    uno::Sequence<beans::PropertyValue> aLoadProps(1);
+    aLoadProps[0].Name = "URL";
+    aLoadProps[0].Value <<= rURL;
+
+    xGraphic = xProv->queryGraphic(aLoadProps);
+
+    Graphic aGraphic(xGraphic);
+    aGraphic.setOriginURL(rURL);
+    return aGraphic;
+}
+}
+} // end vcl::graphic
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */