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diff --git a/vcl/source/gdi/virdev.cxx b/vcl/source/gdi/virdev.cxx
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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 <comphelper/lok.hxx>
+#include <sal/log.hxx>
+#include <tools/debug.hxx>
+
+#include <vcl/pdfextoutdevdata.hxx>
+#include <vcl/virdev.hxx>
+
+#include <ImplOutDevData.hxx>
+#include <font/PhysicalFontCollection.hxx>
+#include <font/PhysicalFontFaceCollection.hxx>
+#include <impfontcache.hxx>
+#include <salinst.hxx>
+#include <salgdi.hxx>
+#include <salvd.hxx>
+#include <svdata.hxx>
+
+using namespace ::com::sun::star::uno;
+
+bool VirtualDevice::CanEnableNativeWidget() const
+{
+ const vcl::ExtOutDevData* pOutDevData(GetExtOutDevData());
+ const vcl::PDFExtOutDevData* pPDFData(dynamic_cast<const vcl::PDFExtOutDevData*>(pOutDevData));
+ return pPDFData == nullptr;
+}
+
+bool VirtualDevice::AcquireGraphics() const
+{
+ DBG_TESTSOLARMUTEX();
+
+ if ( mpGraphics )
+ return true;
+
+ mbInitLineColor = true;
+ mbInitFillColor = true;
+ mbInitFont = true;
+ mbInitTextColor = true;
+ mbInitClipRegion = true;
+
+ ImplSVData* pSVData = ImplGetSVData();
+
+ if ( mpVirDev )
+ {
+ mpGraphics = mpVirDev->AcquireGraphics();
+ // if needed retry after releasing least recently used virtual device graphics
+ while ( !mpGraphics )
+ {
+ if ( !pSVData->maGDIData.mpLastVirGraphics )
+ break;
+ pSVData->maGDIData.mpLastVirGraphics->ReleaseGraphics();
+ mpGraphics = mpVirDev->AcquireGraphics();
+ }
+ // update global LRU list of virtual device graphics
+ if ( mpGraphics )
+ {
+ mpNextGraphics = pSVData->maGDIData.mpFirstVirGraphics;
+ pSVData->maGDIData.mpFirstVirGraphics = const_cast<VirtualDevice*>(this);
+ if ( mpNextGraphics )
+ mpNextGraphics->mpPrevGraphics = const_cast<VirtualDevice*>(this);
+ if ( !pSVData->maGDIData.mpLastVirGraphics )
+ pSVData->maGDIData.mpLastVirGraphics = const_cast<VirtualDevice*>(this);
+ }
+ }
+
+ if ( mpGraphics )
+ {
+ mpGraphics->SetXORMode( (RasterOp::Invert == meRasterOp) || (RasterOp::Xor == meRasterOp), RasterOp::Invert == meRasterOp );
+ mpGraphics->setAntiAlias(bool(mnAntialiasing & AntialiasingFlags::Enable));
+ }
+
+ return mpGraphics != nullptr;
+}
+
+void VirtualDevice::ReleaseGraphics( bool bRelease )
+{
+ DBG_TESTSOLARMUTEX();
+
+ if ( !mpGraphics )
+ return;
+
+ // release the fonts of the physically released graphics device
+ if ( bRelease )
+ ImplReleaseFonts();
+
+ ImplSVData* pSVData = ImplGetSVData();
+
+ VirtualDevice* pVirDev = this;
+
+ if ( bRelease )
+ pVirDev->mpVirDev->ReleaseGraphics( mpGraphics );
+ // remove from global LRU list of virtual device graphics
+ if ( mpPrevGraphics )
+ mpPrevGraphics->mpNextGraphics = mpNextGraphics;
+ else
+ pSVData->maGDIData.mpFirstVirGraphics = mpNextGraphics;
+ if ( mpNextGraphics )
+ mpNextGraphics->mpPrevGraphics = mpPrevGraphics;
+ else
+ pSVData->maGDIData.mpLastVirGraphics = mpPrevGraphics;
+
+ mpGraphics = nullptr;
+ mpPrevGraphics = nullptr;
+ mpNextGraphics = nullptr;
+}
+
+void VirtualDevice::ImplInitVirDev( const OutputDevice* pOutDev,
+ tools::Long nDX, tools::Long nDY, const SystemGraphicsData *pData )
+{
+ SAL_INFO( "vcl.virdev", "ImplInitVirDev(" << nDX << "," << nDY << ")" );
+
+ meRefDevMode = RefDevMode::NONE;
+ mbForceZeroExtleadBug = false;
+ mnBitCount = 0;
+ mbScreenComp = false;
+
+
+ bool bErase = nDX > 0 && nDY > 0;
+
+ if ( nDX < 1 )
+ nDX = 1;
+
+ if ( nDY < 1 )
+ nDY = 1;
+
+ ImplSVData* pSVData = ImplGetSVData();
+
+ if ( !pOutDev )
+ pOutDev = ImplGetDefaultWindow()->GetOutDev();
+ if( !pOutDev )
+ return;
+
+ SalGraphics* pGraphics;
+ if ( !pOutDev->mpGraphics )
+ (void)pOutDev->AcquireGraphics();
+ pGraphics = pOutDev->mpGraphics;
+ if ( pGraphics )
+ mpVirDev = pSVData->mpDefInst->CreateVirtualDevice(*pGraphics, nDX, nDY, meFormat, pData);
+ else
+ mpVirDev = nullptr;
+ if ( !mpVirDev )
+ {
+ // do not abort but throw an exception, may be the current thread terminates anyway (plugin-scenario)
+ throw css::uno::RuntimeException(
+ "Could not create system bitmap!",
+ css::uno::Reference< css::uno::XInterface >() );
+ }
+
+ mnBitCount = pOutDev->GetBitCount();
+ mnOutWidth = nDX;
+ mnOutHeight = nDY;
+
+ mbScreenComp = pOutDev->IsScreenComp();
+
+ mbDevOutput = true;
+ mxFontCollection = pSVData->maGDIData.mxScreenFontList;
+ mxFontCache = pSVData->maGDIData.mxScreenFontCache;
+ mnDPIX = pOutDev->mnDPIX;
+ mnDPIY = pOutDev->mnDPIY;
+ mnDPIScalePercentage = pOutDev->mnDPIScalePercentage;
+ maFont = pOutDev->maFont;
+
+ if( maTextColor != pOutDev->maTextColor )
+ {
+ maTextColor = pOutDev->maTextColor;
+ mbInitTextColor = true;
+ }
+
+ // virtual devices have white background by default
+ SetBackground( Wallpaper( COL_WHITE ) );
+
+ // #i59283# don't erase user-provided surface
+ if( !pData && bErase)
+ Erase();
+
+ // register VirDev in the list
+ mpNext = pSVData->maGDIData.mpFirstVirDev;
+ mpPrev = nullptr;
+ if ( mpNext )
+ mpNext->mpPrev = this;
+ pSVData->maGDIData.mpFirstVirDev = this;
+}
+
+VirtualDevice::VirtualDevice(const OutputDevice* pCompDev, DeviceFormat eFormat,
+ DeviceFormat eAlphaFormat, OutDevType eOutDevType)
+ : OutputDevice(eOutDevType)
+ , meFormat(eFormat)
+ , meAlphaFormat(eAlphaFormat)
+{
+ SAL_INFO( "vcl.virdev", "VirtualDevice::VirtualDevice( " << static_cast<int>(eFormat)
+ << ", " << static_cast<int>(eAlphaFormat)
+ << ", " << static_cast<int>(eOutDevType) << " )" );
+
+ ImplInitVirDev(pCompDev ? pCompDev : Application::GetDefaultDevice(), 0, 0);
+}
+
+VirtualDevice::VirtualDevice(const SystemGraphicsData& rData, const Size &rSize,
+ DeviceFormat eFormat)
+ : OutputDevice(OUTDEV_VIRDEV)
+ , meFormat(eFormat)
+ , meAlphaFormat(DeviceFormat::NONE)
+{
+ SAL_INFO( "vcl.virdev", "VirtualDevice::VirtualDevice( " << static_cast<int>(eFormat) << " )" );
+
+ ImplInitVirDev(Application::GetDefaultDevice(), rSize.Width(), rSize.Height(), &rData);
+}
+
+VirtualDevice::~VirtualDevice()
+{
+ SAL_INFO( "vcl.virdev", "VirtualDevice::~VirtualDevice()" );
+ disposeOnce();
+}
+
+void VirtualDevice::dispose()
+{
+ SAL_INFO( "vcl.virdev", "VirtualDevice::dispose()" );
+
+ ImplSVData* pSVData = ImplGetSVData();
+
+ ReleaseGraphics();
+
+ mpVirDev.reset();
+
+ // remove this VirtualDevice from the double-linked global list
+ if( mpPrev )
+ mpPrev->mpNext = mpNext;
+ else
+ pSVData->maGDIData.mpFirstVirDev = mpNext;
+
+ if( mpNext )
+ mpNext->mpPrev = mpPrev;
+
+ OutputDevice::dispose();
+}
+
+bool VirtualDevice::InnerImplSetOutputSizePixel( const Size& rNewSize, bool bErase,
+ sal_uInt8 *const pBuffer)
+{
+ SAL_INFO( "vcl.virdev",
+ "VirtualDevice::InnerImplSetOutputSizePixel( " << rNewSize.Width() << ", "
+ << rNewSize.Height() << ", " << int(bErase) << " )" );
+
+ if ( !mpVirDev )
+ return false;
+ else if ( rNewSize == GetOutputSizePixel() )
+ {
+ if ( bErase )
+ Erase();
+ SAL_INFO( "vcl.virdev", "Trying to re-use a VirtualDevice but this time using a pre-allocated buffer");
+ return true;
+ }
+
+ bool bRet;
+ tools::Long nNewWidth = rNewSize.Width(), nNewHeight = rNewSize.Height();
+
+ if ( nNewWidth < 1 )
+ nNewWidth = 1;
+
+ if ( nNewHeight < 1 )
+ nNewHeight = 1;
+
+ if ( bErase )
+ {
+ if ( pBuffer )
+ bRet = mpVirDev->SetSizeUsingBuffer( nNewWidth, nNewHeight, pBuffer );
+ else
+ bRet = mpVirDev->SetSize( nNewWidth, nNewHeight );
+
+ if ( bRet )
+ {
+ mnOutWidth = rNewSize.Width();
+ mnOutHeight = rNewSize.Height();
+ Erase();
+ }
+ }
+ else
+ {
+ std::unique_ptr<SalVirtualDevice> pNewVirDev;
+ ImplSVData* pSVData = ImplGetSVData();
+
+ // we need a graphics
+ if ( !mpGraphics && !AcquireGraphics() )
+ return false;
+
+ assert(mpGraphics);
+
+ pNewVirDev = pSVData->mpDefInst->CreateVirtualDevice(*mpGraphics, nNewWidth, nNewHeight, meFormat);
+ if ( pNewVirDev )
+ {
+ SalGraphics* pGraphics = pNewVirDev->AcquireGraphics();
+ if ( pGraphics )
+ {
+ tools::Long nWidth;
+ tools::Long nHeight;
+ if ( mnOutWidth < nNewWidth )
+ nWidth = mnOutWidth;
+ else
+ nWidth = nNewWidth;
+ if ( mnOutHeight < nNewHeight )
+ nHeight = mnOutHeight;
+ else
+ nHeight = nNewHeight;
+ SalTwoRect aPosAry(0, 0, nWidth, nHeight, 0, 0, nWidth, nHeight);
+ pGraphics->CopyBits( aPosAry, *mpGraphics, *this, *this );
+ pNewVirDev->ReleaseGraphics( pGraphics );
+ ReleaseGraphics();
+ mpVirDev = std::move(pNewVirDev);
+ mnOutWidth = rNewSize.Width();
+ mnOutHeight = rNewSize.Height();
+ bRet = true;
+ }
+ else
+ {
+ bRet = false;
+ }
+ }
+ else
+ bRet = false;
+ }
+
+ return bRet;
+}
+
+// #i32109#: Fill opaque areas correctly (without relying on
+// fill/linecolor state)
+void VirtualDevice::ImplFillOpaqueRectangle( const tools::Rectangle& rRect )
+{
+ // Set line and fill color to black (->opaque),
+ // fill rect with that (linecolor, too, because of
+ // those pesky missing pixel problems)
+ Push( vcl::PushFlags::LINECOLOR | vcl::PushFlags::FILLCOLOR );
+ SetLineColor( COL_BLACK );
+ SetFillColor( COL_BLACK );
+ DrawRect( rRect );
+ Pop();
+}
+
+bool VirtualDevice::ImplSetOutputSizePixel( const Size& rNewSize, bool bErase,
+ sal_uInt8 *const pBuffer)
+{
+ if( InnerImplSetOutputSizePixel(rNewSize, bErase, pBuffer) )
+ {
+ if (meAlphaFormat != DeviceFormat::NONE)
+ {
+ // #110958# Setup alpha bitmap
+ if(mpAlphaVDev && mpAlphaVDev->GetOutputSizePixel() != rNewSize)
+ {
+ mpAlphaVDev.disposeAndClear();
+ }
+
+ if( !mpAlphaVDev )
+ {
+ mpAlphaVDev = VclPtr<VirtualDevice>::Create(*this, meAlphaFormat);
+ mpAlphaVDev->InnerImplSetOutputSizePixel(rNewSize, bErase, nullptr);
+ }
+
+ // TODO: copy full outdev state to new one, here. Also needed in outdev2.cxx:DrawOutDev
+ if( GetLineColor() != COL_TRANSPARENT )
+ mpAlphaVDev->SetLineColor( COL_BLACK );
+
+ if( GetFillColor() != COL_TRANSPARENT )
+ mpAlphaVDev->SetFillColor( COL_BLACK );
+
+ mpAlphaVDev->SetMapMode( GetMapMode() );
+
+ mpAlphaVDev->SetAntialiasing( GetAntialiasing() );
+
+ mpAlphaVDev->SetTextRenderModeForResolutionIndependentLayout(GetTextRenderModeForResolutionIndependentLayout());
+ }
+
+ return true;
+ }
+
+ return false;
+}
+
+void VirtualDevice::EnableRTL( bool bEnable )
+{
+ // virdevs default to not mirroring, they will only be set to mirroring
+ // under rare circumstances in the UI, eg the valueset control
+ // because each virdev has its own SalGraphics we can safely switch the SalGraphics here
+ // ...hopefully
+ if( AcquireGraphics() )
+ mpGraphics->SetLayout( bEnable ? SalLayoutFlags::BiDiRtl : SalLayoutFlags::NONE );
+
+ OutputDevice::EnableRTL(bEnable);
+}
+
+bool VirtualDevice::SetOutputSizePixel( const Size& rNewSize, bool bErase )
+{
+ return ImplSetOutputSizePixel(rNewSize, bErase, nullptr);
+}
+
+bool VirtualDevice::SetOutputSizePixelScaleOffsetAndLOKBuffer(
+ const Size& rNewSize, const Fraction& rScale, const Point& rNewOffset,
+ sal_uInt8 *const pBuffer)
+{
+ // If this is ever needed for something else than LOK, changes will
+ // be needed in SvpSalVirtualDevice::CreateSurface() .
+ assert(comphelper::LibreOfficeKit::isActive());
+ assert(pBuffer);
+ MapMode mm = GetMapMode();
+ mm.SetOrigin( rNewOffset );
+ mm.SetScaleX( rScale );
+ mm.SetScaleY( rScale );
+ SetMapMode( mm );
+ return ImplSetOutputSizePixel(rNewSize, true, pBuffer);
+}
+
+void VirtualDevice::SetReferenceDevice( RefDevMode i_eRefDevMode )
+{
+ sal_Int32 nDPIX = 600, nDPIY = 600;
+ switch( i_eRefDevMode )
+ {
+ case RefDevMode::NONE:
+ default:
+ SAL_WARN( "vcl.virdev", "VDev::SetRefDev illegal argument!" );
+ break;
+ case RefDevMode::Dpi600:
+ nDPIX = nDPIY = 600;
+ break;
+ case RefDevMode::MSO1:
+ nDPIX = nDPIY = 6*1440;
+ break;
+ case RefDevMode::PDF1:
+ nDPIX = nDPIY = 720;
+ break;
+ }
+ ImplSetReferenceDevice( i_eRefDevMode, nDPIX, nDPIY );
+}
+
+void VirtualDevice::SetReferenceDevice( sal_Int32 i_nDPIX, sal_Int32 i_nDPIY )
+{
+ ImplSetReferenceDevice( RefDevMode::Custom, i_nDPIX, i_nDPIY );
+}
+
+bool VirtualDevice::IsVirtual() const
+{
+ return true;
+}
+
+void VirtualDevice::ImplSetReferenceDevice( RefDevMode i_eRefDevMode, sal_Int32 i_nDPIX, sal_Int32 i_nDPIY )
+{
+ mnDPIX = i_nDPIX;
+ mnDPIY = i_nDPIY;
+ mnDPIScalePercentage = 100;
+
+ EnableOutput( false ); // prevent output on reference device
+ mbScreenComp = false;
+
+ // invalidate currently selected fonts
+ mbInitFont = true;
+ mbNewFont = true;
+
+ // avoid adjusting font lists when already in refdev mode
+ RefDevMode nOldRefDevMode = meRefDevMode;
+ meRefDevMode = i_eRefDevMode;
+ if( nOldRefDevMode != RefDevMode::NONE )
+ return;
+
+ // the reference device should have only scalable fonts
+ // => clean up the original font lists before getting new ones
+ mpFontInstance.clear();
+ mpFontFaceCollection.reset();
+
+ // preserve global font lists
+ ImplSVData* pSVData = ImplGetSVData();
+ mxFontCollection.reset();
+ mxFontCache.reset();
+
+ // get font list with scalable fonts only
+ (void)AcquireGraphics();
+ mxFontCollection = pSVData->maGDIData.mxScreenFontList->Clone();
+
+ // prepare to use new font lists
+ mxFontCache = std::make_shared<ImplFontCache>();
+}
+
+sal_uInt16 VirtualDevice::GetBitCount() const
+{
+ return mnBitCount;
+}
+
+bool VirtualDevice::UsePolyPolygonForComplexGradient()
+{
+ return true;
+}
+
+void VirtualDevice::Compat_ZeroExtleadBug()
+{
+ mbForceZeroExtleadBug = true;
+}
+
+tools::Long VirtualDevice::GetFontExtLeading() const
+{
+#ifdef UNX
+ // backwards compatible line metrics after fixing #i60945#
+ if ( mbForceZeroExtleadBug )
+ return 0;
+#endif
+
+ return mpFontInstance->mxFontMetric->GetExternalLeading();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */