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Diffstat (limited to 'vcl/unx/generic/gdi/freetypetextrender.cxx')
| -rw-r--r-- | vcl/unx/generic/gdi/freetypetextrender.cxx | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/vcl/unx/generic/gdi/freetypetextrender.cxx b/vcl/unx/generic/gdi/freetypetextrender.cxx new file mode 100644 index 000000000..ea8474e69 --- /dev/null +++ b/vcl/unx/generic/gdi/freetypetextrender.cxx @@ -0,0 +1,216 @@ +/* -*- 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 <unx/freetypetextrender.hxx> + +#include <unotools/configmgr.hxx> +#include <vcl/settings.hxx> +#include <vcl/sysdata.hxx> +#include <vcl/svapp.hxx> +#include <vcl/fontcharmap.hxx> +#include <sal/log.hxx> + +#include <unx/genpspgraphics.h> +#include <unx/geninst.h> +#include <unx/glyphcache.hxx> +#include <unx/fc_fontoptions.hxx> +#include <unx/freetype_glyphcache.hxx> +#include <font/PhysicalFontFace.hxx> +#include <impfontmetricdata.hxx> + +#include <sallayout.hxx> + +FreeTypeTextRenderImpl::FreeTypeTextRenderImpl() + : mnTextColor(Color(0x00, 0x00, 0x00)) //black +{ +} + +FreeTypeTextRenderImpl::~FreeTypeTextRenderImpl() +{ + ReleaseFonts(); +} + +void FreeTypeTextRenderImpl::SetFont(LogicalFontInstance *pEntry, int nFallbackLevel) +{ + // release all no longer needed font resources + for( int i = nFallbackLevel; i < MAX_FALLBACK; ++i ) + { + // old server side font is no longer referenced + mpFreetypeFont[i] = nullptr; + } + + // return early if there is no new font + if( !pEntry ) + return; + + FreetypeFontInstance* pFreetypeFont = static_cast<FreetypeFontInstance*>(pEntry); + mpFreetypeFont[ nFallbackLevel ] = pFreetypeFont; + + // ignore fonts with e.g. corrupted font files + if (!mpFreetypeFont[nFallbackLevel]->GetFreetypeFont().TestFont()) + mpFreetypeFont[nFallbackLevel] = nullptr; +} + +FontCharMapRef FreeTypeTextRenderImpl::GetFontCharMap() const +{ + if (!mpFreetypeFont[0]) + return nullptr; + return mpFreetypeFont[0]->GetFreetypeFont().GetFontCharMap(); +} + +bool FreeTypeTextRenderImpl::GetFontCapabilities(vcl::FontCapabilities &rGetImplFontCapabilities) const +{ + if (!mpFreetypeFont[0]) + return false; + return mpFreetypeFont[0]->GetFreetypeFont().GetFontCapabilities(rGetImplFontCapabilities); +} + +// SalGraphics +void +FreeTypeTextRenderImpl::SetTextColor( Color nColor ) +{ + if( mnTextColor != nColor ) + { + mnTextColor = nColor; + } +} + +bool FreeTypeTextRenderImpl::AddTempDevFont( vcl::font::PhysicalFontCollection* pFontCollection, + const OUString& rFileURL, + const OUString& rFontName ) +{ + return GenPspGraphics::AddTempDevFontHelper(pFontCollection, rFileURL, rFontName); +} + +void FreeTypeTextRenderImpl::ClearDevFontCache() +{ + FreetypeManager::get().ClearFontCache(); +} + +void FreeTypeTextRenderImpl::GetDevFontList( vcl::font::PhysicalFontCollection* pFontCollection ) +{ + // prepare the FreetypeManager using psprint's font infos + FreetypeManager& rFreetypeManager = FreetypeManager::get(); + + psp::PrintFontManager& rMgr = psp::PrintFontManager::get(); + ::std::vector< psp::fontID > aList; + psp::FastPrintFontInfo aInfo; + rMgr.getFontList( aList ); + for (auto const& elem : aList) + { + if( !rMgr.getFontFastInfo( elem, aInfo ) ) + continue; + + // normalize face number to the FreetypeManager + int nFaceNum = rMgr.getFontFaceNumber( aInfo.m_nID ); + int nVariantNum = rMgr.getFontFaceVariation( aInfo.m_nID ); + + // inform FreetypeManager about this font provided by the PsPrint subsystem + FontAttributes aDFA = GenPspGraphics::Info2FontAttributes( aInfo ); + aDFA.IncreaseQualityBy( 4096 ); + const OString& rFileName = rMgr.getFontFileSysPath( aInfo.m_nID ); + rFreetypeManager.AddFontFile(rFileName, nFaceNum, nVariantNum, aInfo.m_nID, aDFA); + } + + // announce glyphcache fonts + rFreetypeManager.AnnounceFonts(pFontCollection); + + // register platform specific font substitutions if available + if (!utl::ConfigManager::IsFuzzing()) + SalGenericInstance::RegisterFontSubstitutors( pFontCollection ); +} + +void FreeTypeTextRenderImpl::GetFontMetric( ImplFontMetricDataRef& rxFontMetric, int nFallbackLevel ) +{ + if( nFallbackLevel >= MAX_FALLBACK ) + return; + + if (mpFreetypeFont[nFallbackLevel]) + mpFreetypeFont[nFallbackLevel]->GetFreetypeFont().GetFontMetric(rxFontMetric); +} + +std::unique_ptr<GenericSalLayout> FreeTypeTextRenderImpl::GetTextLayout(int nFallbackLevel) +{ + assert(mpFreetypeFont[nFallbackLevel]); + if (!mpFreetypeFont[nFallbackLevel]) + return nullptr; + return std::make_unique<GenericSalLayout>(*mpFreetypeFont[nFallbackLevel]); +} + +bool FreeTypeTextRenderImpl::CreateFontSubset( + const OUString& rToFile, + const vcl::font::PhysicalFontFace* pFont, + const sal_GlyphId* pGlyphIds, + const sal_uInt8* pEncoding, + sal_Int32* pWidths, + int nGlyphCount, + FontSubsetInfo& rInfo + ) +{ + // in this context the pFont->GetFontId() is a valid PSP + // font since they are the only ones left after the PDF + // export has filtered its list of subsettable fonts (for + // which this method was created). The correct way would + // be to have the FreetypeManager search for the PhysicalFontFace pFont + psp::fontID aFont = pFont->GetFontId(); + + psp::PrintFontManager& rMgr = psp::PrintFontManager::get(); + bool bSuccess = rMgr.createFontSubset( rInfo, + aFont, + rToFile, + pGlyphIds, + pEncoding, + pWidths, + nGlyphCount ); + return bSuccess; +} + +const void* FreeTypeTextRenderImpl::GetEmbedFontData(const vcl::font::PhysicalFontFace* pFont, tools::Long* pDataLen) +{ + // in this context the pFont->GetFontId() is a valid PSP + // font since they are the only ones left after the PDF + // export has filtered its list of subsettable fonts (for + // which this method was created). The correct way would + // be to have the FreetypeManager search for the PhysicalFontFace pFont + psp::fontID aFont = pFont->GetFontId(); + return GenPspGraphics::DoGetEmbedFontData(aFont, pDataLen); +} + +void FreeTypeTextRenderImpl::FreeEmbedFontData( const void* pData, tools::Long nLen ) +{ + GenPspGraphics::DoFreeEmbedFontData( pData, nLen ); +} + +void FreeTypeTextRenderImpl::GetGlyphWidths( const vcl::font::PhysicalFontFace* pFont, + bool bVertical, + std::vector< sal_Int32 >& rWidths, + Ucs2UIntMap& rUnicodeEnc ) +{ + // in this context the pFont->GetFontId() is a valid PSP + // font since they are the only ones left after the PDF + // export has filtered its list of subsettable fonts (for + // which this method was created). The correct way would + // be to have the FreetypeManager search for the PhysicalFontFace pFont + psp::fontID aFont = pFont->GetFontId(); + GenPspGraphics::DoGetGlyphWidths( aFont, bVertical, rWidths, rUnicodeEnc ); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |