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, 260 insertions, 0 deletions

diff --git a/sfx2/source/doc/graphhelp.cxx b/sfx2/source/doc/graphhelp.cxx
new file mode 100644
index 000000000..136e3ac9a
--- /dev/null
+++ b/sfx2/source/doc/graphhelp.cxx
@@ -0,0 +1,260 @@
+/* -*- 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 .
+ */
+
+
+#ifdef _WIN32
+#include <prewin.h>
+#include <postwin.h>
+#endif
+
+#include <com/sun/star/uno/Exception.hpp>
+#include <com/sun/star/graphic/GraphicProvider.hpp>
+#include <com/sun/star/graphic/XGraphicProvider.hpp>
+#include <com/sun/star/graphic/XGraphic.hpp>
+
+
+#include <vcl/gdimtf.hxx>
+#include <vcl/graph.hxx>
+#include <vcl/cvtgrf.hxx>
+#include <vcl/bitmapex.hxx>
+#include <vcl/graphicfilter.hxx>
+
+#include <tools/stream.hxx>
+#include <unotools/ucbstreamhelper.hxx>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/propertyvalue.hxx>
+#include <o3tl/char16_t2wchar_t.hxx>
+#include <o3tl/string_view.hxx>
+
+#include "graphhelp.hxx"
+#include <bitmaps.hlst>
+
+#include <memory>
+
+#if defined _WIN32
+#include <unotools/tempfile.hxx>
+#include <vcl/outdev.hxx>
+#endif
+
+using namespace css;
+
+std::unique_ptr<SvMemoryStream> GraphicHelper::getFormatStrFromGDI_Impl( const GDIMetaFile* pGDIMeta, ConvertDataFormat nFormat )
+{
+    std::unique_ptr<SvMemoryStream> pResult;
+    if ( pGDIMeta )
+    {
+        std::unique_ptr<SvMemoryStream> pStream(new SvMemoryStream( 65535, 65535 ));
+        Graphic aGraph( *pGDIMeta );
+        if ( GraphicConverter::Export( *pStream, aGraph, nFormat ) == ERRCODE_NONE )
+            pResult = std::move(pStream);
+    }
+
+    return pResult;
+}
+
+
+// static
+void* GraphicHelper::getEnhMetaFileFromGDI_Impl( const GDIMetaFile* pGDIMeta )
+{
+    void* pResult = nullptr;
+
+#ifdef _WIN32
+    if ( pGDIMeta )
+    {
+        OUString const aStr(".emf");
+        ::utl::TempFile aTempFile( u"", true, &aStr );
+
+        OUString aMetaFile = aTempFile.GetFileName();
+        OUString aMetaURL = aTempFile.GetURL();
+
+        std::unique_ptr<SvStream> pStream = ::utl::UcbStreamHelper::CreateStream( aMetaURL, StreamMode::STD_READWRITE );
+        if ( pStream )
+        {
+            Graphic aGraph( *pGDIMeta );
+            ErrCode nFailed = GraphicConverter::Export( *pStream, aGraph, ConvertDataFormat::EMF );
+            pStream->Flush();
+            pStream.reset();
+
+            if ( !nFailed )
+                pResult = GetEnhMetaFileW( o3tl::toW(aMetaFile.getStr()) );
+        }
+    }
+#else
+    (void)pGDIMeta;  // unused
+#endif
+
+    return pResult;
+}
+
+
+// static
+void* GraphicHelper::getWinMetaFileFromGDI_Impl( const GDIMetaFile* pGDIMeta, const Size& aMetaSize )
+{
+    void* pResult = nullptr;
+
+#ifdef _WIN32
+    if ( pGDIMeta )
+    {
+        SvMemoryStream pStream( 65535, 65535 );
+        Graphic aGraph( *pGDIMeta );
+        ErrCode nFailed = GraphicConverter::Export( pStream, aGraph, ConvertDataFormat::WMF );
+        pStream.Flush();
+        if ( !nFailed )
+        {
+            sal_Int32 nLength = pStream.TellEnd();
+            if ( nLength > 22 )
+            {
+                HMETAFILE hMeta = SetMetaFileBitsEx( nLength - 22,
+                                static_cast< const unsigned char*>( pStream.GetData() ) + 22 );
+
+                if ( hMeta )
+                {
+                    HGLOBAL hMemory = GlobalAlloc( GMEM_DDESHARE | GMEM_MOVEABLE, sizeof( METAFILEPICT ) );
+
+                    if ( hMemory )
+                    {
+                        METAFILEPICT* pMF = static_cast<METAFILEPICT*>(GlobalLock( hMemory ));
+
+                        pMF->hMF = hMeta;
+                        pMF->mm = MM_ANISOTROPIC;
+
+                        MapMode aWinMode( MapUnit::Map100thMM );
+
+                        if ( aWinMode == pGDIMeta->GetPrefMapMode() )
+                        {
+                            pMF->xExt = aMetaSize.Width();
+                            pMF->yExt = aMetaSize.Height();
+                        }
+                        else
+                        {
+                            Size aWinSize = OutputDevice::LogicToLogic( Size( aMetaSize.Width(), aMetaSize.Height() ),
+                                                                        pGDIMeta->GetPrefMapMode(),
+                                                                        aWinMode );
+                            pMF->xExt = aWinSize.Width();
+                            pMF->yExt = aWinSize.Height();
+                        }
+
+                        GlobalUnlock( hMemory );
+                        pResult = static_cast<void*>(hMemory);
+                    }
+                    else
+                           DeleteMetaFile( hMeta );
+                }
+            }
+        }
+    }
+#else
+    (void)pGDIMeta;  // unused
+    (void)aMetaSize; // unused
+#endif
+
+
+    return pResult;
+}
+
+
+// static
+bool GraphicHelper::getThumbnailFormatFromBitmap_Impl(const BitmapEx& rBitmap, const uno::Reference<io::XStream>& xStream)
+{
+    if (rBitmap.IsEmpty() || !xStream.is())
+        return false;
+
+    std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(xStream));
+
+    if (pStream->GetError())
+        return false;
+
+    BitmapEx bitmap(rBitmap);
+    bitmap.Convert(BmpConversion::N8BitColors);
+
+    GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
+
+    if (rFilter.compressAsPNG(bitmap, *pStream) != ERRCODE_NONE)
+        return false;
+
+    pStream->FlushBuffer();
+
+    return !pStream->GetError();
+}
+
+// static
+bool GraphicHelper::getThumbnailReplacement_Impl(std::u16string_view rResID, const uno::Reference< io::XStream >& xStream )
+{
+    bool bResult = false;
+    if (!rResID.empty() && xStream.is())
+    {
+        uno::Reference< uno::XComponentContext > xContext = ::comphelper::getProcessComponentContext();
+        try
+        {
+            uno::Reference< graphic::XGraphicProvider > xGraphProvider(graphic::GraphicProvider::create(xContext));
+            const OUString aURL{OUString::Concat("private:graphicrepository/") + rResID};
+
+            uno::Sequence< beans::PropertyValue > aMediaProps{ comphelper::makePropertyValue("URL",
+                                                                                             aURL) };
+
+            uno::Reference< graphic::XGraphic > xGraphic = xGraphProvider->queryGraphic( aMediaProps );
+            if ( xGraphic.is() )
+            {
+                uno::Sequence< beans::PropertyValue > aStoreProps{
+                    comphelper::makePropertyValue("OutputStream", xStream),
+                    comphelper::makePropertyValue("MimeType", OUString("image/png"))
+                };
+
+                xGraphProvider->storeGraphic( xGraphic, aStoreProps );
+                bResult = true;
+            }
+        }
+        catch(const uno::Exception&)
+        {
+        }
+    }
+
+    return bResult;
+}
+
+// static
+OUString GraphicHelper::getThumbnailReplacementIDByFactoryName_Impl( std::u16string_view aFactoryShortName )
+{
+    OUString sResult;
+
+    if ( aFactoryShortName == u"scalc" )
+    {
+        sResult = BMP_128X128_CALC_DOC;
+    }
+    else if ( aFactoryShortName == u"sdraw" )
+    {
+        sResult = BMP_128X128_DRAW_DOC;
+    }
+    else if ( aFactoryShortName == u"simpress" )
+    {
+        sResult = BMP_128X128_IMPRESS_DOC;
+    }
+    else if ( aFactoryShortName == u"smath" )
+    {
+        sResult = BMP_128X128_MATH_DOC;
+    }
+    else if ( aFactoryShortName == u"swriter" || o3tl::starts_with(aFactoryShortName, u"swriter/") )
+    {
+        sResult = BMP_128X128_WRITER_DOC;
+    }
+
+    return sResult;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */