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+/* -*- 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: */
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