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Diffstat (limited to 'vcl/aqua/source/gdi/atsui/salatsuifontutils.cxx')
| -rw-r--r-- | vcl/aqua/source/gdi/atsui/salatsuifontutils.cxx | 493 |
1 files changed, 493 insertions, 0 deletions
diff --git a/vcl/aqua/source/gdi/atsui/salatsuifontutils.cxx b/vcl/aqua/source/gdi/atsui/salatsuifontutils.cxx new file mode 100644 index 000000000000..c56ac0d901ee --- /dev/null +++ b/vcl/aqua/source/gdi/atsui/salatsuifontutils.cxx @@ -0,0 +1,493 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + + +#include <boost/assert.hpp> +#include <vector> +#include <set> + +#include "vcl/svapp.hxx" + +#include "aqua/atsui/salgdi.h" +#include "aqua/saldata.hxx" +#include "aqua/atsui/salatsuifontutils.hxx" + +// ATSUI is deprecated in 10.6 (or already 10.5?) +#if defined LIBO_WERROR && defined __GNUC__ +#define GCC_VERSION (__GNUC__ * 10000 \ + + __GNUC_MINOR__ * 100 \ + + __GNUC_PATCHLEVEL__) +#if GCC_VERSION >= 40201 +#pragma GCC diagnostic warning "-Wdeprecated-declarations" +#endif +#endif + +// we have to get the font attributes from the name table +// since neither head's macStyle nor OS/2's panose are easily available +// during font enumeration. macStyle bits would be not sufficient anyway +// and SFNT fonts on Mac usually do not contain an OS/2 table. +static void UpdateAttributesFromPSName( const String& rPSName, ImplDevFontAttributes& rDFA ) +{ + rtl::OString aPSName( rtl::OUStringToOString( rPSName, RTL_TEXTENCODING_UTF8 ).toAsciiLowerCase() ); + + // TODO: use a multi-string ignore-case matcher once it becomes available + if( (aPSName.indexOf("regular") != -1) + || (aPSName.indexOf("normal") != -1) + || (aPSName.indexOf("roman") != -1) + || (aPSName.indexOf("medium") != -1) + || (aPSName.indexOf("plain") != -1) + || (aPSName.indexOf("standard") != -1) + || (aPSName.indexOf("std") != -1) ) + { + rDFA.meWidthType = WIDTH_NORMAL; + rDFA.meWeight = WEIGHT_NORMAL; + rDFA.meItalic = ITALIC_NONE; + } + + // heuristics for font weight + if (aPSName.indexOf("extrablack") != -1) + rDFA.meWeight = WEIGHT_BLACK; + else if (aPSName.indexOf("black") != -1) + rDFA.meWeight = WEIGHT_BLACK; + //else if (aPSName.indexOf("book") != -1) + // rDFA.meWeight = WEIGHT_SEMIBOLD; + else if( (aPSName.indexOf("semibold") != -1) + || (aPSName.indexOf("smbd") != -1)) + rDFA.meWeight = WEIGHT_SEMIBOLD; + else if (aPSName.indexOf("ultrabold") != -1) + rDFA.meWeight = WEIGHT_ULTRABOLD; + else if (aPSName.indexOf("extrabold") != -1) + rDFA.meWeight = WEIGHT_BLACK; + else if( (aPSName.indexOf("bold") != -1) + || (aPSName.indexOf("-bd") != -1)) + rDFA.meWeight = WEIGHT_BOLD; + else if (aPSName.indexOf("extralight") != -1) + rDFA.meWeight = WEIGHT_ULTRALIGHT; + else if (aPSName.indexOf("ultralight") != -1) + rDFA.meWeight = WEIGHT_ULTRALIGHT; + else if (aPSName.indexOf("light") != -1) + rDFA.meWeight = WEIGHT_LIGHT; + else if (aPSName.indexOf("thin") != -1) + rDFA.meWeight = WEIGHT_THIN; + else if (aPSName.indexOf("-w3") != -1) + rDFA.meWeight = WEIGHT_LIGHT; + else if (aPSName.indexOf("-w4") != -1) + rDFA.meWeight = WEIGHT_SEMILIGHT; + else if (aPSName.indexOf("-w5") != -1) + rDFA.meWeight = WEIGHT_NORMAL; + else if (aPSName.indexOf("-w6") != -1) + rDFA.meWeight = WEIGHT_SEMIBOLD; + else if (aPSName.indexOf("-w7") != -1) + rDFA.meWeight = WEIGHT_BOLD; + else if (aPSName.indexOf("-w8") != -1) + rDFA.meWeight = WEIGHT_ULTRABOLD; + else if (aPSName.indexOf("-w9") != -1) + rDFA.meWeight = WEIGHT_BLACK; + + // heuristics for font slant + if( (aPSName.indexOf("italic") != -1) + || (aPSName.indexOf(" ital") != -1) + || (aPSName.indexOf("cursive") != -1) + || (aPSName.indexOf("-it") != -1) + || (aPSName.indexOf("lightit") != -1) + || (aPSName.indexOf("mediumit") != -1) + || (aPSName.indexOf("boldit") != -1) + || (aPSName.indexOf("cnit") != -1) + || (aPSName.indexOf("bdcn") != -1) + || (aPSName.indexOf("bdit") != -1) + || (aPSName.indexOf("condit") != -1) + || (aPSName.indexOf("bookit") != -1) + || (aPSName.indexOf("blackit") != -1) ) + rDFA.meItalic = ITALIC_NORMAL; + if( (aPSName.indexOf("oblique") != -1) + || (aPSName.indexOf("inclined") != -1) + || (aPSName.indexOf("slanted") != -1) ) + rDFA.meItalic = ITALIC_OBLIQUE; + + // heuristics for font width + if( (aPSName.indexOf("condensed") != -1) + || (aPSName.indexOf("-cond") != -1) + || (aPSName.indexOf("boldcond") != -1) + || (aPSName.indexOf("boldcn") != -1) + || (aPSName.indexOf("cnit") != -1) ) + rDFA.meWidthType = WIDTH_CONDENSED; + else if (aPSName.indexOf("narrow") != -1) + rDFA.meWidthType = WIDTH_SEMI_CONDENSED; + else if (aPSName.indexOf("expanded") != -1) + rDFA.meWidthType = WIDTH_EXPANDED; + else if (aPSName.indexOf("wide") != -1) + rDFA.meWidthType = WIDTH_EXPANDED; + + // heuristics for font pitch + if( (aPSName.indexOf("mono") != -1) + || (aPSName.indexOf("courier") != -1) + || (aPSName.indexOf("monaco") != -1) + || (aPSName.indexOf("typewriter") != -1) ) + rDFA.mePitch = PITCH_FIXED; + + // heuristics for font family type + if( (aPSName.indexOf("script") != -1) + || (aPSName.indexOf("chancery") != -1) + || (aPSName.indexOf("zapfino") != -1)) + rDFA.meFamily = FAMILY_SCRIPT; + else if( (aPSName.indexOf("comic") != -1) + || (aPSName.indexOf("outline") != -1) + || (aPSName.indexOf("pinpoint") != -1) ) + rDFA.meFamily = FAMILY_DECORATIVE; + else if( (aPSName.indexOf("sans") != -1) + || (aPSName.indexOf("arial") != -1) ) + rDFA.meFamily = FAMILY_SWISS; + else if( (aPSName.indexOf("roman") != -1) + || (aPSName.indexOf("times") != -1) ) + rDFA.meFamily = FAMILY_ROMAN; + + // heuristics for codepoint semantic + if( (aPSName.indexOf("symbol") != -1) + || (aPSName.indexOf("dings") != -1) + || (aPSName.indexOf("dingbats") != -1) + || (aPSName.indexOf("ornaments") != -1) + || (aPSName.indexOf("embellishments") != -1) ) + rDFA.mbSymbolFlag = true; + + // #i100020# special heuristic for names with single-char styles + // NOTE: we are checking name that hasn't been lower-cased + if( rPSName.Len() > 3 ) + { + int i = rPSName.Len(); + sal_Unicode c = rPSName.GetChar( --i ); + if( c == 'C' ) { // "capitals" + rDFA.meFamily = FAMILY_DECORATIVE; + c = rPSName.GetChar( --i ); + } + if( c == 'O' ) { // CFF-based OpenType + c = rPSName.GetChar( --i ); + } + if( c == 'I' ) { // "italic" + rDFA.meItalic = ITALIC_NORMAL; + c = rPSName.GetChar( --i ); + } + if( c == 'B' ) // "bold" + rDFA.meWeight = WEIGHT_BOLD; + if( c == 'C' ) // "capitals" + rDFA.meFamily = FAMILY_DECORATIVE; + // TODO: check that all single-char styles have been resolved? + } +} + +// ----------------------------------------------------------------------- + +static bool GetDevFontAttributes( ATSUFontID nFontID, ImplDevFontAttributes& rDFA ) +{ + // all ATSU fonts are device fonts that can be directly rotated + rDFA.mbOrientation = true; + rDFA.mbDevice = true; + rDFA.mnQuality = 0; + + // reset the attributes + rDFA.meFamily = FAMILY_DONTKNOW; + rDFA.mePitch = PITCH_VARIABLE; + rDFA.meWidthType = WIDTH_NORMAL; + rDFA.meWeight = WEIGHT_NORMAL; + rDFA.meItalic = ITALIC_NONE; + rDFA.mbSymbolFlag = false; + + // ignore bitmap fonts + ATSFontRef rATSFontRef = FMGetATSFontRefFromFont( nFontID ); + ByteCount nHeadLen = 0; + OSStatus rc = ATSFontGetTable( rATSFontRef, 0x68656164/*head*/, 0, 0, NULL, &nHeadLen ); + if( (rc != noErr) || (nHeadLen <= 0) ) + return false; + + // all scalable fonts on this platform are subsettable + rDFA.mbSubsettable = true; + rDFA.mbEmbeddable = false; + + // prepare iterating over all name strings of the font + ItemCount nFontNameCount = 0; + rc = ATSUCountFontNames( nFontID, &nFontNameCount ); + if( rc != noErr ) + return false; + int nBestNameValue = 0; + int nBestStyleValue = 0; + FontLanguageCode eBestLangCode = 0; + const FontLanguageCode eUILangCode = Application::GetSettings().GetUILanguage(); + typedef std::vector<char> NameBuffer; + NameBuffer aNameBuffer( 256 ); + + // iterate over all available name strings of the font + for( ItemCount nNameIndex = 0; nNameIndex < nFontNameCount; ++nNameIndex ) + { + ByteCount nNameLength = 0; + + FontNameCode eFontNameCode; + FontPlatformCode eFontNamePlatform; + FontScriptCode eFontNameScript; + FontLanguageCode eFontNameLanguage; + rc = ATSUGetIndFontName( nFontID, nNameIndex, 0, NULL, + &nNameLength, &eFontNameCode, &eFontNamePlatform, &eFontNameScript, &eFontNameLanguage ); + if( rc != noErr ) + continue; + + // ignore non-interesting name entries + if( (eFontNameCode != kFontFamilyName) + && (eFontNameCode != kFontStyleName) + && (eFontNameCode != kFontPostscriptName) ) + continue; + + // heuristic to find the most common font name + // prefering default language names or even better the names matching to the UI language + int nNameValue = (eFontNameLanguage==eUILangCode) ? 0 : ((eFontNameLanguage==0) ? -10 : -20); + rtl_TextEncoding eEncoding = RTL_TEXTENCODING_UNICODE; + const int nPlatformEncoding = ((int)eFontNamePlatform << 8) + (int)eFontNameScript; + switch( nPlatformEncoding ) + { + case 0x000: nNameValue += 23; break; // Unicode 1.0 + case 0x001: nNameValue += 24; break; // Unicode 1.1 + case 0x002: nNameValue += 25; break; // iso10646_1993 + case 0x003: nNameValue += 26; break; // UCS-2 + case 0x301: nNameValue += 27; break; // Win UCS-2 + case 0x004: // UCS-4 + case 0x30A: nNameValue += 0; // Win-UCS-4 + eEncoding = RTL_TEXTENCODING_UCS4; + break; + case 0x100: nNameValue += 21; // Mac Roman + eEncoding = RTL_TEXTENCODING_APPLE_ROMAN; + break; + case 0x300: nNameValue = 0; // Win Symbol encoded name! + rDFA.mbSymbolFlag = true; // (often seen for symbol fonts) + break; + default: nNameValue = 0; // ignore other encodings + break; + } + + // ignore name entries with no useful encoding + if( nNameValue <= 0 ) + continue; + if( nNameLength >= aNameBuffer.size() ) + continue; + + // get the encoded name + aNameBuffer.reserve( nNameLength+1 ); // extra byte helps for debugging + rc = ATSUGetIndFontName( nFontID, nNameIndex, nNameLength, &aNameBuffer[0], + &nNameLength, &eFontNameCode, &eFontNamePlatform, &eFontNameScript, &eFontNameLanguage ); + if( rc != noErr ) + continue; + + // convert to unicode name + UniString aUtf16Name; + if( eEncoding == RTL_TEXTENCODING_UNICODE ) // we are just interested in UTF16 encoded names + aUtf16Name = UniString( (const sal_Unicode*)&aNameBuffer[0], nNameLength/2 ); + else if( eEncoding == RTL_TEXTENCODING_UCS4 ) + aUtf16Name = UniString(); // TODO + else // assume the non-unicode encoded names are byte encoded + aUtf16Name = UniString( &aNameBuffer[0], nNameLength, eEncoding ); + + // ignore empty strings + if( aUtf16Name.Len() <= 0 ) + continue; + + // handle the name depending on its namecode + switch( eFontNameCode ) + { + case kFontFamilyName: + // ignore font names starting with '.' + if( aUtf16Name.GetChar(0) == '.' ) + nNameValue = 0; + else if( rDFA.maName.Len() ) + { + // even if a family name is not the one we are looking for + // it is still useful as a font name alternative + if( rDFA.maMapNames.Len() ) + rDFA.maMapNames += ';'; + rDFA.maMapNames += (nBestNameValue < nNameValue) ? rDFA.maName : aUtf16Name; + } + if( nBestNameValue < nNameValue ) + { + // get the best family name + nBestNameValue = nNameValue; + eBestLangCode = eFontNameLanguage; + rDFA.maName = aUtf16Name; + } + break; + case kFontStyleName: + // get a style name matching to the family name + if( nBestStyleValue < nNameValue ) + { + nBestStyleValue = nNameValue; + rDFA.maStyleName = aUtf16Name; + } + break; + case kFontPostscriptName: + // use the postscript name to get some useful info + UpdateAttributesFromPSName( aUtf16Name, rDFA ); + break; + default: + // TODO: use other name entries too? + break; + } + } + + bool bRet = (rDFA.maName.Len() > 0); + return bRet; +} + +// ======================================================================= + +SystemFontList::SystemFontList() +{ + // count available system fonts + ItemCount nATSUICompatibleFontsAvailable = 0; + if( ATSUFontCount(&nATSUICompatibleFontsAvailable) != noErr ) + return; + if( nATSUICompatibleFontsAvailable <= 0 ) + return; + + // enumerate available system fonts + typedef std::vector<ATSUFontID> AtsFontIDVector; + AtsFontIDVector aFontIDVector( nATSUICompatibleFontsAvailable ); + ItemCount nFontItemsCount = 0; + if( ATSUGetFontIDs( &aFontIDVector[0], aFontIDVector.capacity(), &nFontItemsCount ) != noErr ) + return; + + BOOST_ASSERT(nATSUICompatibleFontsAvailable == nFontItemsCount && "Strange I would expect them to be equal"); + + // prepare use of the available fonts + AtsFontIDVector::const_iterator it = aFontIDVector.begin(); + for(; it != aFontIDVector.end(); ++it ) + { + const ATSUFontID nFontID = *it; + ImplDevFontAttributes aDevFontAttr; + if( !GetDevFontAttributes( nFontID, aDevFontAttr ) ) + continue; + ImplMacFontData* pFontData = new ImplMacFontData( aDevFontAttr, nFontID ); + maFontContainer[ nFontID ] = pFontData; + } + + InitGlyphFallbacks(); +} + +// ----------------------------------------------------------------------- + +SystemFontList::~SystemFontList() +{ + MacFontContainer::const_iterator it = maFontContainer.begin(); + for(; it != maFontContainer.end(); ++it ) + delete (*it).second; + maFontContainer.clear(); + + ATSUDisposeFontFallbacks( maFontFallbacks ); +} + +// ----------------------------------------------------------------------- + +void SystemFontList::AnnounceFonts( ImplDevFontList& rFontList ) const +{ + MacFontContainer::const_iterator it = maFontContainer.begin(); + for(; it != maFontContainer.end(); ++it ) + rFontList.Add( (*it).second->Clone() ); +} + +// ----------------------------------------------------------------------- + +// not all fonts are suitable for glyph fallback => sort them +struct GfbCompare{ bool operator()(const ImplMacFontData*, const ImplMacFontData*); }; + +inline bool GfbCompare::operator()( const ImplMacFontData* pA, const ImplMacFontData* pB ) +{ + // use symbol fonts only as last resort + bool bPreferA = !pA->IsSymbolFont(); + bool bPreferB = !pB->IsSymbolFont(); + if( bPreferA != bPreferB ) + return bPreferA; + // prefer scalable fonts + bPreferA = pA->IsScalable(); + bPreferB = pB->IsScalable(); + if( bPreferA != bPreferB ) + return bPreferA; + // prefer non-slanted fonts + bPreferA = (pA->GetSlant() == ITALIC_NONE); + bPreferB = (pB->GetSlant() == ITALIC_NONE); + if( bPreferA != bPreferB ) + return bPreferA; + // prefer normal weight fonts + bPreferA = (pA->GetWeight() == WEIGHT_NORMAL); + bPreferB = (pB->GetWeight() == WEIGHT_NORMAL); + if( bPreferA != bPreferB ) + return bPreferA; + // prefer normal width fonts + bPreferA = (pA->GetWidthType() == WIDTH_NORMAL); + bPreferB = (pB->GetWidthType() == WIDTH_NORMAL); + if( bPreferA != bPreferB ) + return bPreferA; + return false; +} + +void SystemFontList::InitGlyphFallbacks() +{ + // sort fonts for "glyph fallback" + typedef std::multiset<const ImplMacFontData*,GfbCompare> FallbackSet; + FallbackSet aFallbackSet; + MacFontContainer::const_iterator it = maFontContainer.begin(); + for(; it != maFontContainer.end(); ++it ) + { + const ImplMacFontData* pIFD = (*it).second; + // TODO: subsettable/embeddable glyph fallback only for PDF export? + if( pIFD->IsSubsettable() || pIFD->IsEmbeddable() ) + aFallbackSet.insert( pIFD ); + } + + // tell ATSU about font preferences for "glyph fallback" + typedef std::vector<ATSUFontID> AtsFontIDVector; + AtsFontIDVector aFallbackVector; + aFallbackVector.reserve( maFontContainer.size() ); + FallbackSet::const_iterator itFData = aFallbackSet.begin(); + for(; itFData != aFallbackSet.end(); ++itFData ) + { + const ImplMacFontData* pFontData = (*itFData); + ATSUFontID nFontID = (ATSUFontID)pFontData->GetFontId(); + aFallbackVector.push_back( nFontID ); + } + + ATSUCreateFontFallbacks( &maFontFallbacks ); + ATSUSetObjFontFallbacks( maFontFallbacks, + aFallbackVector.size(), &aFallbackVector[0], kATSUSequentialFallbacksPreferred ); +} + +// ----------------------------------------------------------------------- + +ImplMacFontData* SystemFontList::GetFontDataFromId( ATSUFontID nFontId ) const +{ + MacFontContainer::const_iterator it = maFontContainer.find( nFontId ); + if( it == maFontContainer.end() ) + return NULL; + return (*it).second; +} + +// ----------------------------------------------------------------------- + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |