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Diffstat (limited to 'vcl/source/gdi/virdev.cxx')
| -rw-r--r-- | vcl/source/gdi/virdev.cxx | 510 |
1 files changed, 510 insertions, 0 deletions
diff --git a/vcl/source/gdi/virdev.cxx b/vcl/source/gdi/virdev.cxx new file mode 100644 index 000000000..1bb163cda --- /dev/null +++ b/vcl/source/gdi/virdev.cxx @@ -0,0 +1,510 @@ +/* -*- 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 <salinst.hxx> +#include <salgdi.hxx> +#include <salvd.hxx> +#include <outdev.h> +#include <PhysicalFontCollection.hxx> +#include <svdata.hxx> +#include <vcl/virdev.hxx> +#include <sal/log.hxx> +#include <tools/debug.hxx> + +using namespace ::com::sun::star::uno; + +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->setAntiAliasB2DDraw(bool(mnAntialiasing & AntialiasingFlags::EnableB2dDraw)); + } + + 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, + long nDX, long nDY, const SystemGraphicsData *pData ) +{ + SAL_INFO( "vcl.virdev", "ImplInitVirDev(" << nDX << "," << nDY << ")" ); + + meRefDevMode = RefDevMode::NONE; + mbForceZeroExtleadBug = false; + + bool bErase = nDX > 0 && nDY > 0; + + if ( nDX < 1 ) + nDX = 1; + + if ( nDY < 1 ) + nDY = 1; + + ImplSVData* pSVData = ImplGetSVData(); + + if ( !pOutDev ) + pOutDev = ImplGetDefaultWindow(); + 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 >() ); + } + + switch (meFormat) + { + case DeviceFormat::BITMASK: + mnBitCount = 1; + break; + default: + mnBitCount = pOutDev->GetBitCount(); + break; + } + mnOutWidth = nDX; + mnOutHeight = nDY; + + if (meFormat == DeviceFormat::BITMASK) + SetAntialiasing( AntialiasingFlags::DisableText ); + + 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; + 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; + + pNewVirDev = pSVData->mpDefInst->CreateVirtualDevice(mpGraphics, nNewWidth, nNewHeight, meFormat); + if ( pNewVirDev ) + { + SalGraphics* pGraphics = pNewVirDev->AcquireGraphics(); + if ( pGraphics ) + { + long nWidth; + 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( PushFlags::LINECOLOR | 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() ); + } + + 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::SetOutputSizePixelScaleOffsetAndBuffer( + const Size& rNewSize, const Fraction& rScale, const Point& rNewOffset, + sal_uInt8 *const pBuffer) +{ + if (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(); + mpDeviceFontList.reset(); + mpDeviceFontSizeList.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; +} + +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: */ |