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, 238 insertions, 0 deletions

diff --git a/emfio/source/emfuno/xemfparser.cxx b/emfio/source/emfuno/xemfparser.cxx
new file mode 100644
index 000000000..d5342edf7
--- /dev/null
+++ b/emfio/source/emfuno/xemfparser.cxx
@@ -0,0 +1,238 @@
+/* -*- 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 .
+ */
+
+#include <sal/config.h>
+
+#include <com/sun/star/graphic/XEmfParser.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <cppuhelper/implbase2.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <vcl/outdev.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/wmfexternal.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+#include <unotools/ucbstreamhelper.hxx>
+#include <drawinglayer/primitive2d/metafileprimitive2d.hxx>
+#include <sal/log.hxx>
+#include <comphelper/sequenceashashmap.hxx>
+
+#include <wmfreader.hxx>
+#include <emfreader.hxx>
+
+using namespace ::com::sun::star;
+
+namespace emfio::emfreader
+{
+        namespace {
+
+        class XEmfParser : public ::cppu::WeakAggImplHelper2< graphic::XEmfParser, lang::XServiceInfo >
+        {
+        private:
+            uno::Reference< uno::XComponentContext > context_;
+            basegfx::B2DTuple maSizeHint;
+
+        public:
+            explicit XEmfParser(
+                uno::Reference< uno::XComponentContext > const & context);
+            XEmfParser(const XEmfParser&) = delete;
+            XEmfParser& operator=(const XEmfParser&) = delete;
+
+            // XEmfParser
+            virtual uno::Sequence< uno::Reference< ::graphic::XPrimitive2D > > SAL_CALL getDecomposition(
+                const uno::Reference< ::io::XInputStream >& xEmfStream,
+                const OUString& aAbsolutePath,
+                const uno::Sequence< ::beans::PropertyValue >& rProperties) override;
+            void SAL_CALL setSizeHint(const geometry::RealPoint2D& rSize) override;
+
+            // XServiceInfo
+            virtual OUString SAL_CALL getImplementationName() override;
+            virtual sal_Bool SAL_CALL supportsService(const OUString&) override;
+            virtual uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+        };
+
+        }
+
+        XEmfParser::XEmfParser(
+            uno::Reference< uno::XComponentContext > const & context):
+            context_(context)
+        {
+        }
+
+        uno::Sequence< uno::Reference< ::graphic::XPrimitive2D > > XEmfParser::getDecomposition(
+            const uno::Reference< ::io::XInputStream >& xEmfStream,
+            const OUString& /*aAbsolutePath*/,
+            const uno::Sequence< ::beans::PropertyValue >& rProperties)
+        {
+            drawinglayer::primitive2d::Primitive2DContainer aRetval;
+
+            if (xEmfStream.is())
+            {
+                WmfExternal aExternalHeader;
+                const bool bExternalHeaderUsed(aExternalHeader.setSequence(rProperties));
+                bool bEnableEMFPlus = true;
+                comphelper::SequenceAsHashMap aMap(rProperties);
+                auto it = aMap.find("EMFPlusEnable");
+                if (it != aMap.end())
+                {
+                    bool bValue;
+                    if (it->second >>= bValue)
+                    {
+                        bEnableEMFPlus = bValue;
+                    }
+                }
+
+                // rough check - import and conv to primitive
+                GDIMetaFile aMtf;
+                std::unique_ptr<SvStream> pStream(::utl::UcbStreamHelper::CreateStream(xEmfStream));
+                sal_uInt32 nOrgPos = pStream->Tell();
+
+                SvStreamEndian nOrigNumberFormat = pStream->GetEndian();
+                pStream->SetEndian(SvStreamEndian::LITTLE);
+
+                sal_uInt32 nMetaType(0);
+                if (checkSeek(*pStream, 0x28))
+                    pStream->ReadUInt32(nMetaType);
+                pStream->Seek(nOrgPos);
+
+                bool bReadError(false);
+
+                try
+                {
+                    if (nMetaType == 0x464d4520)
+                    {
+                        // read and get possible failure/error, ReadEnhWMF returns success
+                        emfio::EmfReader aReader(*pStream, aMtf);
+                        aReader.SetSizeHint(maSizeHint);
+                        if (!bEnableEMFPlus)
+                        {
+                            aReader.SetEnableEMFPlus(bEnableEMFPlus);
+                        }
+                        bReadError = !aReader.ReadEnhWMF();
+                    }
+                    else
+                    {
+                        emfio::WmfReader aReader(*pStream, aMtf, bExternalHeaderUsed ? &aExternalHeader : nullptr);
+                        if (!bEnableEMFPlus)
+                            aReader.SetEnableEMFPlus(bEnableEMFPlus);
+                        aReader.ReadWMF();
+
+                        // Need to check for ErrCode at stream to not lose former work.
+                        // This may contain important information and will behave the
+                        // same as before. When we have an error, do not create content
+                        ErrCode aErrCode(pStream->GetError());
+
+                        bReadError = aErrCode.IsError();
+                    }
+                }
+                catch (...)
+                {
+                    bReadError = true;
+                }
+
+                pStream->SetEndian(nOrigNumberFormat);
+
+                if (!bReadError)
+                {
+                    Size aSize(aMtf.GetPrefSize());
+
+                    if (aMtf.GetPrefMapMode().GetMapUnit() == MapUnit::MapPixel)
+                    {
+                        aSize = Application::GetDefaultDevice()->PixelToLogic(aSize, MapMode(MapUnit::Map100thMM));
+                    }
+                    else
+                    {
+                        aSize = OutputDevice::LogicToLogic(aSize, aMtf.GetPrefMapMode(), MapMode(MapUnit::Map100thMM));
+                    }
+
+                    // use size
+                    const basegfx::B2DHomMatrix aMetafileTransform(
+                        basegfx::utils::createScaleB2DHomMatrix(
+                            aSize.Width(),
+                            aSize.Height()));
+
+                    // ...and create a single MetafilePrimitive2D containing the Metafile.
+                    // CAUTION: Currently, ReadWindowMetafile uses the local VectorGraphicData
+                    // and a MetafileAccessor hook at the MetafilePrimitive2D inside of
+                    // ImpGraphic::ImplGetGDIMetaFile to get the Metafile. Thus, the first
+                    // and only primitive in this case *has to be* a MetafilePrimitive2D.
+                    aRetval.push_back(
+                        new drawinglayer::primitive2d::MetafilePrimitive2D(
+                            aMetafileTransform,
+                            aMtf));
+
+                    // // force to use decomposition directly to get rid of the metafile
+                    // const css::uno::Sequence< css::beans::PropertyValue > aViewParameters;
+                    // drawinglayer::primitive2d::MetafilePrimitive2D aMetafilePrimitive2D(
+                    //     aMetafileTransform,
+                    //     aMtf);
+                    // aRetval.append(aMetafilePrimitive2D.getDecomposition(aViewParameters));
+
+                    // if (aRetval.empty())
+                    // {
+                    //     // for test, just create some graphic data that will get visualized
+                    //     const basegfx::B2DRange aRange(1000, 1000, 5000, 5000);
+                    //     const basegfx::BColor aColor(1.0, 0.0, 0.0);
+                    //     const basegfx::B2DPolygon aOutline(basegfx::utils::createPolygonFromRect(aRange));
+                    //
+                    //     aRetval.push_back(new drawinglayer::primitive2d::PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aOutline), aColor));
+                    // }
+                }
+            }
+            else
+            {
+                SAL_WARN("emfio", "Invalid stream (!)");
+            }
+
+            return aRetval.toSequence();
+        }
+
+        void XEmfParser::setSizeHint(const geometry::RealPoint2D& rSize)
+        {
+            maSizeHint.setX(rSize.X);
+            maSizeHint.setY(rSize.Y);
+        }
+
+        OUString SAL_CALL XEmfParser::getImplementationName()
+        {
+            return "emfio::emfreader::XEmfParser";
+        }
+
+        sal_Bool SAL_CALL XEmfParser::supportsService(const OUString& rServiceName)
+        {
+            return cppu::supportsService(this, rServiceName);
+        }
+
+        uno::Sequence< OUString > SAL_CALL XEmfParser::getSupportedServiceNames()
+        {
+            return { "com.sun.star.graphic.EmfTools" };
+        }
+
+} // end of namespace emfio::emfreader
+
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+emfio_emfreader_XEmfParser_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& )
+{
+    return cppu::acquire(new emfio::emfreader::XEmfParser(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */