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214 | /* -*- 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 <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 <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 )<--- Condition 'mnTextColor!=nColor' is redundant
{
mnTextColor = nColor;<--- Assignment 'mnTextColor=nColor'
}
}
bool FreeTypeTextRenderImpl::AddTempDevFont( PhysicalFontCollection* pFontCollection,
const OUString& rFileURL,
const OUString& rFontName )
{
return GenPspGraphics::AddTempDevFontHelper(pFontCollection, rFileURL, rFontName);
}
void FreeTypeTextRenderImpl::ClearDevFontCache()
{
FreetypeManager::get().ClearFontCache();
}
void FreeTypeTextRenderImpl::GetDevFontList( 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 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 PhysicalFontFace* pFont, 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, long nLen )
{
GenPspGraphics::DoFreeEmbedFontData( pData, nLen );
}
void FreeTypeTextRenderImpl::GetGlyphWidths( const 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: */
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