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