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Diffstat (limited to '')
| -rw-r--r-- | vcl/quartz/SystemFontList.cxx | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/vcl/quartz/SystemFontList.cxx b/vcl/quartz/SystemFontList.cxx new file mode 100644 index 0000000000..e068caf80f --- /dev/null +++ b/vcl/quartz/SystemFontList.cxx @@ -0,0 +1,301 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * 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 <sal/log.hxx> + +#include <tools/long.hxx> + + +#include <quartz/SystemFontList.hxx> +#include <impfont.hxx> +#ifdef MACOSX +#include <osx/saldata.hxx> +#include <osx/salinst.h> +#endif +#include <fontattributes.hxx> +#include <font/PhysicalFontCollection.hxx> +#include <quartz/CoreTextFontFace.hxx> +#include <quartz/salgdi.h> +#include <quartz/utils.h> +#include <sallayout.hxx> + + +FontAttributes DevFontFromCTFontDescriptor( CTFontDescriptorRef pFD, bool* bFontEnabled ) +{ + // all CoreText fonts are device fonts that can rotate just fine + FontAttributes rDFA; + rDFA.SetQuality( 0 ); + + // reset the font attributes + rDFA.SetFamilyType( FAMILY_DONTKNOW ); + rDFA.SetPitch( PITCH_VARIABLE ); + rDFA.SetWidthType( WIDTH_NORMAL ); + rDFA.SetWeight( WEIGHT_NORMAL ); + rDFA.SetItalic( ITALIC_NONE ); + rDFA.SetMicrosoftSymbolEncoded( false ); + + // get font name +#ifdef MACOSX + CFStringRef pLang = nullptr; + CFStringRef pFamilyName = static_cast<CFStringRef>( + CTFontDescriptorCopyLocalizedAttribute( pFD, kCTFontFamilyNameAttribute, &pLang )); + + if ( !pLang ) + { + if( pFamilyName ) + { + CFRelease( pFamilyName ); + } + pFamilyName = static_cast<CFStringRef>(CTFontDescriptorCopyAttribute( pFD, kCTFontFamilyNameAttribute )); + } +#else + // No "Application" on iOS. And it is unclear whether this code + // snippet will actually ever get invoked on iOS anyway. So just + // use the old code that uses a non-localized font name. + CFStringRef pFamilyName = (CFStringRef)CTFontDescriptorCopyAttribute( pFD, kCTFontFamilyNameAttribute ); +#endif + + rDFA.SetFamilyName( GetOUString( pFamilyName ) ); + + // get font style + CFStringRef pStyleName = static_cast<CFStringRef>(CTFontDescriptorCopyAttribute( pFD, kCTFontStyleNameAttribute )); + rDFA.SetStyleName( GetOUString( pStyleName ) ); + + // get font-enabled status + if( bFontEnabled ) + { + int bEnabled = TRUE; // by default (and when we're on macOS < 10.6) it's "enabled" + CFNumberRef pEnabled = static_cast<CFNumberRef>(CTFontDescriptorCopyAttribute( pFD, kCTFontEnabledAttribute )); + CFNumberGetValue( pEnabled, kCFNumberIntType, &bEnabled ); + *bFontEnabled = bEnabled; + } + + // get font attributes + CFDictionaryRef pAttrDict = static_cast<CFDictionaryRef>(CTFontDescriptorCopyAttribute( pFD, kCTFontTraitsAttribute )); + + if (bFontEnabled && *bFontEnabled) + { + // Ignore font formats not supported. + int nFormat; + CFNumberRef pFormat = static_cast<CFNumberRef>(CTFontDescriptorCopyAttribute(pFD, kCTFontFormatAttribute)); + CFNumberGetValue(pFormat, kCFNumberIntType, &nFormat); + if (nFormat == kCTFontFormatUnrecognized || nFormat == kCTFontFormatPostScript || nFormat == kCTFontFormatBitmap) + { + SAL_INFO("vcl.fonts", "Ignoring font with unsupported format: " << rDFA.GetFamilyName()); + *bFontEnabled = false; + } + CFRelease(pFormat); + } + + // get symbolic trait + // TODO: use other traits such as MonoSpace/Condensed/Expanded or Vertical too + SInt64 nSymbolTrait = 0; + CFNumberRef pSymbolNum = nullptr; + if( CFDictionaryGetValueIfPresent( pAttrDict, kCTFontSymbolicTrait, reinterpret_cast<const void**>(&pSymbolNum) ) ) + { + CFNumberGetValue( pSymbolNum, kCFNumberSInt64Type, &nSymbolTrait ); + if (nSymbolTrait & kCTFontMonoSpaceTrait) + rDFA.SetPitch(PITCH_FIXED); + } + + // get the font weight + double fWeight = 0; + CFNumberRef pWeightNum = static_cast<CFNumberRef>(CFDictionaryGetValue( pAttrDict, kCTFontWeightTrait )); + // tdf#140401 check if attribute is a nullptr + if( pWeightNum ) + CFNumberGetValue( pWeightNum, kCFNumberDoubleType, &fWeight ); + int nInt = WEIGHT_NORMAL; + + // Special case fixes + + // tdf#67744: Courier Std Medium is always bold. We get a kCTFontWeightTrait of 0.23 which + // surely must be wrong. + if (rDFA.GetFamilyName() == "Courier Std" && + (rDFA.GetStyleName() == "Medium" || rDFA.GetStyleName() == "Medium Oblique") && + fWeight > 0.2) + { + fWeight = 0; + } + + // tdf#68889: Ditto for Gill Sans MT Pro. Here I can kinda understand it, maybe the + // kCTFontWeightTrait is intended to give a subjective "optical" impression of how the font + // looks, and Gill Sans MT Pro Medium is kinda heavy. But with the way LibreOffice uses fonts, + // we still should think of it as being "medium" weight. + if (rDFA.GetFamilyName() == "Gill Sans MT Pro" && + (rDFA.GetStyleName() == "Medium" || rDFA.GetStyleName() == "Medium Italic") && + fWeight > 0.2) + { + fWeight = 0; + } + + if( fWeight > 0 ) + { + nInt = rint(int(WEIGHT_NORMAL) + fWeight * ((WEIGHT_BLACK - WEIGHT_NORMAL)/0.68)); + if( nInt > WEIGHT_BLACK ) + { + nInt = WEIGHT_BLACK; + } + } + else if( fWeight < 0 ) + { + nInt = rint(int(WEIGHT_NORMAL) + fWeight * ((WEIGHT_NORMAL - WEIGHT_THIN)/0.8)); + if( nInt < WEIGHT_THIN ) + { + nInt = WEIGHT_THIN; + } + } + rDFA.SetWeight( static_cast<FontWeight>(nInt) ); + + // get the font slant + double fSlant = 0; + CFNumberRef pSlantNum = static_cast<CFNumberRef>(CFDictionaryGetValue( pAttrDict, kCTFontSlantTrait )); + // tdf#140401 check if attribute is a nullptr + if( pSlantNum ) + CFNumberGetValue( pSlantNum, kCFNumberDoubleType, &fSlant ); + if( fSlant >= 0.035 ) + { + rDFA.SetItalic( ITALIC_NORMAL ); + } + // get width trait + double fWidth = 0; + CFNumberRef pWidthNum = static_cast<CFNumberRef>(CFDictionaryGetValue( pAttrDict, kCTFontWidthTrait )); + // tdf#140401 check if attribute is a nullptr + if( pWidthNum ) + CFNumberGetValue( pWidthNum, kCFNumberDoubleType, &fWidth ); + nInt = WIDTH_NORMAL; + + if( fWidth > 0 ) + { + nInt = rint( int(WIDTH_NORMAL) + fWidth * ((WIDTH_ULTRA_EXPANDED - WIDTH_NORMAL)/0.4)); + if( nInt > WIDTH_ULTRA_EXPANDED ) + { + nInt = WIDTH_ULTRA_EXPANDED; + } + } + else if( fWidth < 0 ) + { + nInt = rint( int(WIDTH_NORMAL) + fWidth * ((WIDTH_NORMAL - WIDTH_ULTRA_CONDENSED)/0.5)); + if( nInt < WIDTH_ULTRA_CONDENSED ) + { + nInt = WIDTH_ULTRA_CONDENSED; + } + } + rDFA.SetWidthType( static_cast<FontWidth>(nInt) ); + + // release the attribute dict that we had copied + CFRelease( pAttrDict ); + + // TODO? also use the HEAD table if available to get more attributes +// CFDataRef CTFontCopyTable( CTFontRef, kCTFontTableHead, /*kCTFontTableOptionNoOptions*/kCTFontTableOptionExcludeSynthetic ); + + return rDFA; +} + +static void fontEnumCallBack( const void* pValue, void* pContext ) +{ + CTFontDescriptorRef pFD = static_cast<CTFontDescriptorRef>(pValue); + + bool bFontEnabled; + FontAttributes rDFA = DevFontFromCTFontDescriptor( pFD, &bFontEnabled ); + + if( bFontEnabled) + { + rtl::Reference<CoreTextFontFace> pFontData = new CoreTextFontFace( rDFA, pFD ); + SystemFontList* pFontList = static_cast<SystemFontList*>(pContext); + pFontList->AddFont( pFontData.get() ); + } +} + +SystemFontList::SystemFontList() + : mpCTFontCollection( nullptr ) + , mpCTFontArray( nullptr ) +{} + +SystemFontList::~SystemFontList() +{ + maFontContainer.clear(); + + if( mpCTFontArray ) + { + CFRelease( mpCTFontArray ); + } + if( mpCTFontCollection ) + { + CFRelease( mpCTFontCollection ); + } +} + +void SystemFontList::AddFont( CoreTextFontFace* pFontData ) +{ + sal_IntPtr nFontId = pFontData->GetFontId(); + maFontContainer[ nFontId ] = pFontData; +} + +void SystemFontList::AnnounceFonts( vcl::font::PhysicalFontCollection& rFontCollection ) const +{ + for(const auto& rEntry : maFontContainer ) + { + rFontCollection.Add( rEntry.second.get() ); + } +} + +CoreTextFontFace* SystemFontList::GetFontDataFromId( sal_IntPtr nFontId ) const +{ + auto it = maFontContainer.find( nFontId ); + if( it == maFontContainer.end() ) + { + return nullptr; + } + return (*it).second.get(); +} + +bool SystemFontList::Init() +{ + // enumerate available system fonts + static const int nMaxDictEntries = 8; + CFMutableDictionaryRef pCFDict = CFDictionaryCreateMutable( nullptr, + nMaxDictEntries, + &kCFTypeDictionaryKeyCallBacks, + &kCFTypeDictionaryValueCallBacks ); + + CFDictionaryAddValue( pCFDict, kCTFontCollectionRemoveDuplicatesOption, kCFBooleanTrue ); + mpCTFontCollection = CTFontCollectionCreateFromAvailableFonts( pCFDict ); + CFRelease( pCFDict ); + mpCTFontArray = CTFontCollectionCreateMatchingFontDescriptors( mpCTFontCollection ); + + const int nFontCount = CFArrayGetCount( mpCTFontArray ); + const CFRange aFullRange = CFRangeMake( 0, nFontCount ); + CFArrayApplyFunction( mpCTFontArray, aFullRange, fontEnumCallBack, this ); + + return true; +} + +std::unique_ptr<SystemFontList> GetCoretextFontList() +{ + std::unique_ptr<SystemFontList> pList(new SystemFontList()); + if( !pList->Init() ) + { + return nullptr; + } + + return pList; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |