1 /* 2 * Copyright (C) 2005, 2006 Apple Computer, Inc. All rights reserved. 3 * Copyright (C) 2006 Alexey Proskuryakov 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 15 * its contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #import "config.h" 31 #import "SimpleFontData.h" 32 33 #import "Font.h" 34 #import "FontCache.h" 35 #import "FontDescription.h" 36 #import <ApplicationServices/ApplicationServices.h> 37 38 using namespace std; 39 40 namespace WebCore { 41 42 CFDictionaryRef SimpleFontData::getCFStringAttributes(TypesettingFeatures typesettingFeatures, FontOrientation orientation) const 43 { 44 unsigned key = typesettingFeatures + 1; 45 pair<HashMap<unsigned, RetainPtr<CFDictionaryRef> >::iterator, bool> addResult = m_CFStringAttributes.add(key, RetainPtr<CFDictionaryRef>()); 46 RetainPtr<CFDictionaryRef>& attributesDictionary = addResult.first->second; 47 if (!addResult.second) 48 return attributesDictionary.get(); 49 50 bool treatLineAsVertical = orientation == Vertical; 51 52 bool allowLigatures = (!treatLineAsVertical && platformData().allowsLigatures()) || (typesettingFeatures & Ligatures); 53 54 static const int ligaturesNotAllowedValue = 0; 55 static CFNumberRef ligaturesNotAllowed = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &ligaturesNotAllowedValue); 56 57 static const int ligaturesAllowedValue = 1; 58 static CFNumberRef ligaturesAllowed = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &ligaturesAllowedValue); 59 60 if (!(typesettingFeatures & Kerning)) { 61 static const float kerningAdjustmentValue = 0; 62 static CFNumberRef kerningAdjustment = CFNumberCreate(kCFAllocatorDefault, kCFNumberFloatType, &kerningAdjustmentValue); 63 static const void* keysWithKerningDisabled[] = { kCTFontAttributeName, kCTKernAttributeName, kCTLigatureAttributeName, kCTVerticalFormsAttributeName }; 64 const void* valuesWithKerningDisabled[] = { platformData().ctFont(), kerningAdjustment, allowLigatures 65 ? ligaturesAllowed : ligaturesNotAllowed, treatLineAsVertical ? kCFBooleanTrue : kCFBooleanFalse }; 66 attributesDictionary.adoptCF(CFDictionaryCreate(0, keysWithKerningDisabled, valuesWithKerningDisabled, 67 WTF_ARRAY_LENGTH(keysWithKerningDisabled), &kCFCopyStringDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)); 68 } else { 69 // By omitting the kCTKernAttributeName attribute, we get Core Text's standard kerning. 70 static const void* keysWithKerningEnabled[] = { kCTFontAttributeName, kCTLigatureAttributeName, kCTVerticalFormsAttributeName }; 71 const void* valuesWithKerningEnabled[] = { platformData().ctFont(), allowLigatures ? ligaturesAllowed : ligaturesNotAllowed, treatLineAsVertical ? kCFBooleanTrue : kCFBooleanFalse }; 72 attributesDictionary.adoptCF(CFDictionaryCreate(0, keysWithKerningEnabled, valuesWithKerningEnabled, 73 WTF_ARRAY_LENGTH(keysWithKerningEnabled), &kCFCopyStringDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)); 74 } 75 76 return attributesDictionary.get(); 77 } 78 79 } // namespace WebCore 80
