18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 28e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (C) 1999 Antti Koivisto (koivisto@kde.org) 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (C) 2000 Dirk Mueller (mueller@kde.org) 5dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2010 Apple Inc. 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * This library is free software; you can redistribute it and/or 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modify it under the terms of the GNU Library General Public 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * License as published by the Free Software Foundation; either 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * version 2 of the License, or (at your option) any later version. 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * This library is distributed in the hope that it will be useful, 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * but WITHOUT ANY WARRANTY; without even the implied warranty of 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Library General Public License for more details. 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * You should have received a copy of the GNU Library General Public License 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * along with this library; see the file COPYING.LIB. If not, write to 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Boston, MA 02110-1301, USA. 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#import "config.h" 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#import "Font.h" 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#import "GlyphBuffer.h" 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#import "GraphicsContext.h" 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#import "Logging.h" 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#import "SimpleFontData.h" 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#import "WebCoreSystemInterface.h" 318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#import <AppKit/AppKit.h> 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#define SYNTHETIC_OBLIQUE_ANGLE 14 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifdef __LP64__ 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#define URefCon void* 378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#else 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#define URefCon UInt32 398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectusing namespace std; 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WebCore { 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 455f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianbool Font::canReturnFallbackFontsForComplexText() 465f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian{ 475f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return true; 485f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian} 495f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 502fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockbool Font::canExpandAroundIdeographsInComplexText() 512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block{ 522fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return true; 532fc2651226baac27029e38c9d6ef883fa32084dbSteve Block} 542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 552bde8e466a4451c7319e3a072d118917957d6554Steve Block// CTFontGetVerticalTranslationsForGlyphs is different on Snow Leopard. It returns values for a font-size of 1 562bde8e466a4451c7319e3a072d118917957d6554Steve Block// without unitsPerEm applied. We have to apply a transform that scales up to the point size and that also 572bde8e466a4451c7319e3a072d118917957d6554Steve Block// divides by unitsPerEm. 582bde8e466a4451c7319e3a072d118917957d6554Steve Blockstatic bool hasBrokenCTFontGetVerticalTranslationsForGlyphs() 59dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block{ 602bde8e466a4451c7319e3a072d118917957d6554Steve Block// Chromium runs the same binary on both Leopard and Snow Leopard, so the check has to happen at runtime. 612bde8e466a4451c7319e3a072d118917957d6554Steve Block#if PLATFORM(CHROMIUM) 622bde8e466a4451c7319e3a072d118917957d6554Steve Block static bool isCached = false; 632bde8e466a4451c7319e3a072d118917957d6554Steve Block static bool result; 642bde8e466a4451c7319e3a072d118917957d6554Steve Block 652bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!isCached) { 662bde8e466a4451c7319e3a072d118917957d6554Steve Block SInt32 majorVersion = 0; 672bde8e466a4451c7319e3a072d118917957d6554Steve Block SInt32 minorVersion = 0; 682bde8e466a4451c7319e3a072d118917957d6554Steve Block Gestalt(gestaltSystemVersionMajor, &majorVersion); 692bde8e466a4451c7319e3a072d118917957d6554Steve Block Gestalt(gestaltSystemVersionMinor, &minorVersion); 702bde8e466a4451c7319e3a072d118917957d6554Steve Block result = majorVersion == 10 && minorVersion == 6; 712bde8e466a4451c7319e3a072d118917957d6554Steve Block isCached = true; 722bde8e466a4451c7319e3a072d118917957d6554Steve Block } 732bde8e466a4451c7319e3a072d118917957d6554Steve Block return result; 742bde8e466a4451c7319e3a072d118917957d6554Steve Block#elif defined(BUILDING_ON_SNOW_LEOPARD) 752bde8e466a4451c7319e3a072d118917957d6554Steve Block return true; 762bde8e466a4451c7319e3a072d118917957d6554Steve Block#else 772bde8e466a4451c7319e3a072d118917957d6554Steve Block return false; 782bde8e466a4451c7319e3a072d118917957d6554Steve Block#endif 792bde8e466a4451c7319e3a072d118917957d6554Steve Block} 802bde8e466a4451c7319e3a072d118917957d6554Steve Block 812bde8e466a4451c7319e3a072d118917957d6554Steve Blockstatic void showGlyphsWithAdvances(const FloatPoint& point, const SimpleFontData* font, CGContextRef context, const CGGlyph* glyphs, const CGSize* advances, size_t count) 822bde8e466a4451c7319e3a072d118917957d6554Steve Block{ 832bde8e466a4451c7319e3a072d118917957d6554Steve Block CGContextSetTextPosition(context, point.x(), point.y()); 842bde8e466a4451c7319e3a072d118917957d6554Steve Block 85e14391e94c850b8bd03680c23b38978db68687a8John Reck const FontPlatformData& platformData = font->platformData(); 86e14391e94c850b8bd03680c23b38978db68687a8John Reck if (!platformData.isColorBitmapFont()) { 87e14391e94c850b8bd03680c23b38978db68687a8John Reck CGAffineTransform savedMatrix; 882bde8e466a4451c7319e3a072d118917957d6554Steve Block bool isVertical = font->platformData().orientation() == Vertical; 89e14391e94c850b8bd03680c23b38978db68687a8John Reck if (isVertical) { 90e14391e94c850b8bd03680c23b38978db68687a8John Reck CGAffineTransform rotateLeftTransform = CGAffineTransformMake(0, -1, 1, 0, 0, 0); 91e14391e94c850b8bd03680c23b38978db68687a8John Reck savedMatrix = CGContextGetTextMatrix(context); 92e14391e94c850b8bd03680c23b38978db68687a8John Reck CGAffineTransform runMatrix = CGAffineTransformConcat(savedMatrix, rotateLeftTransform); 93e14391e94c850b8bd03680c23b38978db68687a8John Reck CGContextSetTextMatrix(context, runMatrix); 942bde8e466a4451c7319e3a072d118917957d6554Steve Block 952bde8e466a4451c7319e3a072d118917957d6554Steve Block CGAffineTransform translationsTransform; 962bde8e466a4451c7319e3a072d118917957d6554Steve Block if (hasBrokenCTFontGetVerticalTranslationsForGlyphs()) { 972bde8e466a4451c7319e3a072d118917957d6554Steve Block translationsTransform = CGAffineTransformMake(platformData.m_size, 0, 0, platformData.m_size, 0, 0); 982bde8e466a4451c7319e3a072d118917957d6554Steve Block translationsTransform = CGAffineTransformConcat(translationsTransform, rotateLeftTransform); 992bde8e466a4451c7319e3a072d118917957d6554Steve Block CGFloat unitsPerEm = CGFontGetUnitsPerEm(platformData.cgFont()); 1002bde8e466a4451c7319e3a072d118917957d6554Steve Block translationsTransform = CGAffineTransformConcat(translationsTransform, CGAffineTransformMakeScale(1 / unitsPerEm, 1 / unitsPerEm)); 1012bde8e466a4451c7319e3a072d118917957d6554Steve Block } else { 1022bde8e466a4451c7319e3a072d118917957d6554Steve Block translationsTransform = rotateLeftTransform; 1032bde8e466a4451c7319e3a072d118917957d6554Steve Block } 1042bde8e466a4451c7319e3a072d118917957d6554Steve Block Vector<CGSize, 256> translations(count); 1052bde8e466a4451c7319e3a072d118917957d6554Steve Block CTFontGetVerticalTranslationsForGlyphs(platformData.ctFont(), glyphs, translations.data(), count); 1062bde8e466a4451c7319e3a072d118917957d6554Steve Block 1072bde8e466a4451c7319e3a072d118917957d6554Steve Block CGAffineTransform transform = CGAffineTransformInvert(CGContextGetTextMatrix(context)); 1082bde8e466a4451c7319e3a072d118917957d6554Steve Block 1092bde8e466a4451c7319e3a072d118917957d6554Steve Block CGPoint position = FloatPoint(point.x(), point.y() + font->fontMetrics().floatAscent(IdeographicBaseline) - font->fontMetrics().floatAscent()); 1102bde8e466a4451c7319e3a072d118917957d6554Steve Block Vector<CGPoint, 256> positions(count); 1112bde8e466a4451c7319e3a072d118917957d6554Steve Block for (size_t i = 0; i < count; ++i) { 1122bde8e466a4451c7319e3a072d118917957d6554Steve Block CGSize translation = CGSizeApplyAffineTransform(translations[i], translationsTransform); 1132bde8e466a4451c7319e3a072d118917957d6554Steve Block positions[i] = CGPointApplyAffineTransform(CGPointMake(position.x - translation.width, position.y + translation.height), transform); 1142bde8e466a4451c7319e3a072d118917957d6554Steve Block position.x += advances[i].width; 1152bde8e466a4451c7319e3a072d118917957d6554Steve Block position.y += advances[i].height; 1162bde8e466a4451c7319e3a072d118917957d6554Steve Block } 1172bde8e466a4451c7319e3a072d118917957d6554Steve Block CGContextShowGlyphsAtPositions(context, glyphs, positions.data(), count); 118e14391e94c850b8bd03680c23b38978db68687a8John Reck CGContextSetTextMatrix(context, savedMatrix); 1192bde8e466a4451c7319e3a072d118917957d6554Steve Block } else 1202bde8e466a4451c7319e3a072d118917957d6554Steve Block CGContextShowGlyphsWithAdvances(context, glyphs, advances, count); 121e14391e94c850b8bd03680c23b38978db68687a8John Reck } 122dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD) 123dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block else { 124dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (!count) 125dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block return; 126dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 127dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block Vector<CGPoint, 256> positions(count); 128dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block CGAffineTransform matrix = CGAffineTransformInvert(CGContextGetTextMatrix(context)); 129dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block positions[0] = CGPointZero; 130dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block for (size_t i = 1; i < count; ++i) { 131dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block CGSize advance = CGSizeApplyAffineTransform(advances[i - 1], matrix); 132dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block positions[i].x = positions[i - 1].x + advance.width; 133dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block positions[i].y = positions[i - 1].y + advance.height; 134dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 135e14391e94c850b8bd03680c23b38978db68687a8John Reck CTFontDrawGlyphs(platformData.ctFont(), glyphs, positions.data(), count, context); 136dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 137dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block#endif 138dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block} 139dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 1408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid Font::drawGlyphs(GraphicsContext* context, const SimpleFontData* font, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) const 1418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CGContextRef cgContext = context->platformContext(); 143231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 144f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool shouldSmoothFonts = true; 145f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool changeFontSmoothing = false; 146f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 147231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block switch(fontDescription().fontSmoothing()) { 148231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block case Antialiased: { 149231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block context->setShouldAntialias(true); 150f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch shouldSmoothFonts = false; 151f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch changeFontSmoothing = true; 152231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block break; 153231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 154231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block case SubpixelAntialiased: { 155231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block context->setShouldAntialias(true); 156f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch shouldSmoothFonts = true; 157f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch changeFontSmoothing = true; 158231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block break; 159231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 160231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block case NoSmoothing: { 161231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block context->setShouldAntialias(false); 162f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch shouldSmoothFonts = false; 163f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch changeFontSmoothing = true; 164231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block break; 165231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 166231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block case AutoSmoothing: { 167231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // For the AutoSmooth case, don't do anything! Keep the default settings. 168231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block break; 169231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 170231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block default: 171231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block ASSERT_NOT_REACHED(); 172231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 174f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!shouldUseSmoothing()) { 175f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch shouldSmoothFonts = false; 176f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch changeFontSmoothing = true; 177f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 178f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 179f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool originalShouldUseFontSmoothing = false; 180f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (changeFontSmoothing) { 181f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch originalShouldUseFontSmoothing = wkCGContextGetShouldSmoothFonts(cgContext); 182f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch CGContextSetShouldSmoothFonts(cgContext, shouldSmoothFonts); 183f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 184f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project const FontPlatformData& platformData = font->platformData(); 1868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project NSFont* drawFont; 1878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!isPrinterFont()) { 1888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project drawFont = [platformData.font() screenFont]; 1898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (drawFont != platformData.font()) 1908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We are getting this in too many places (3406411); use ERROR so it only prints on debug versions for now. (We should debug this also, eventually). 1918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project LOG_ERROR("Attempting to set non-screen font (%@) when drawing to screen. Using screen font anyway, may result in incorrect metrics.", 1928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project [[[platformData.font() fontDescriptor] fontAttributes] objectForKey:NSFontNameAttribute]); 1938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 1948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project drawFont = [platformData.font() printerFont]; 1958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (drawFont != platformData.font()) 1968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project NSLog(@"Attempting to set non-printer font (%@) when printing. Using printer font anyway, may result in incorrect metrics.", 1978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project [[[platformData.font() fontDescriptor] fontAttributes] objectForKey:NSFontNameAttribute]); 1988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CGContextSetFont(cgContext, platformData.cgFont()); 2018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CGAffineTransform matrix = CGAffineTransformIdentity; 203dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (drawFont && !platformData.isColorBitmapFont()) 2048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project memcpy(&matrix, [drawFont matrix], sizeof(matrix)); 2058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project matrix.b = -matrix.b; 2068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project matrix.d = -matrix.d; 2078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (platformData.m_syntheticOblique) 2088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project matrix = CGAffineTransformConcat(matrix, CGAffineTransformMake(1, 0, -tanf(SYNTHETIC_OBLIQUE_ANGLE * acosf(0) / 90), 1, 0, 0)); 2098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CGContextSetTextMatrix(cgContext, matrix); 2108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (drawFont) { 2128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project wkSetCGFontRenderingMode(cgContext, drawFont); 2138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CGContextSetFontSize(cgContext, 1.0f); 2148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 2158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CGContextSetFontSize(cgContext, platformData.m_size); 2168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 217dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 2185ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen FloatSize shadowOffset; 219545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch float shadowBlur; 2208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Color shadowColor; 221f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch ColorSpace shadowColorSpace; 222643ca7872b450ea4efacab6188849e5aac2ba161Steve Block ColorSpace fillColorSpace = context->fillColorSpace(); 223f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch context->getShadow(shadowOffset, shadowBlur, shadowColor, shadowColorSpace); 2248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 225f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool hasSimpleShadow = context->textDrawingMode() == TextModeFill && shadowColor.isValid() && !shadowBlur && !platformData.isColorBitmapFont() && (!context->shadowsIgnoreTransforms() || context->getCTM().isIdentityOrTranslationOrFlipped()); 2268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasSimpleShadow) { 2278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Paint simple shadows ourselves instead of relying on CG shadows, to avoid losing subpixel antialiasing. 2288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project context->clearShadow(); 2298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Color fillColor = context->fillColor(); 2308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Color shadowFillColor(shadowColor.red(), shadowColor.green(), shadowColor.blue(), shadowColor.alpha() * fillColor.alpha() / 255); 231f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch context->setFillColor(shadowFillColor, shadowColorSpace); 232f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch float shadowTextX = point.x() + shadowOffset.width(); 233f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // If shadows are ignoring transforms, then we haven't applied the Y coordinate flip yet, so down is negative. 234f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch float shadowTextY = point.y() + shadowOffset.height() * (context->shadowsIgnoreTransforms() ? -1 : 1); 2352bde8e466a4451c7319e3a072d118917957d6554Steve Block showGlyphsWithAdvances(FloatPoint(shadowTextX, shadowTextY), font, cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); 2362bde8e466a4451c7319e3a072d118917957d6554Steve Block if (font->syntheticBoldOffset()) 2372bde8e466a4451c7319e3a072d118917957d6554Steve Block showGlyphsWithAdvances(FloatPoint(shadowTextX + font->syntheticBoldOffset(), shadowTextY), font, cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); 238643ca7872b450ea4efacab6188849e5aac2ba161Steve Block context->setFillColor(fillColor, fillColorSpace); 2398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 2408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2412bde8e466a4451c7319e3a072d118917957d6554Steve Block showGlyphsWithAdvances(point, font, cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); 2422bde8e466a4451c7319e3a072d118917957d6554Steve Block if (font->syntheticBoldOffset()) 2432bde8e466a4451c7319e3a072d118917957d6554Steve Block showGlyphsWithAdvances(FloatPoint(point.x() + font->syntheticBoldOffset(), point.y()), font, cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); 2448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasSimpleShadow) 246f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch context->setShadow(shadowOffset, shadowBlur, shadowColor, shadowColorSpace); 2478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 248f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (changeFontSmoothing) 2498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CGContextSetShouldSmoothFonts(cgContext, originalShouldUseFontSmoothing); 2508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 253