void
XeTeXFontInst_Mac::initialize(int &status)
{
if (m_descriptor == 0) {
status = 1;
return;
}
if (status != 0)
m_descriptor = 0;
// Create a copy of original font descriptor with font cascading (fallback) disabled
CFArrayRef emptyCascadeList = CFArrayCreate(NULL, NULL, 0, &kCFTypeArrayCallBacks);
const void* values[] = { emptyCascadeList };
static const void* attributeKeys[] = { kCTFontCascadeListAttribute };
CFDictionaryRef attributes = CFDictionaryCreate(NULL, attributeKeys, values, 1,
&kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFRelease(emptyCascadeList);
m_descriptor = CTFontDescriptorCreateCopyWithAttributes(m_descriptor, attributes);
CFRelease(attributes);
m_fontRef = CTFontCreateWithFontDescriptor(m_descriptor, m_pointSize * 72.0 / 72.27, NULL);
if (m_fontRef) {
char *pathname;
uint32_t index;
pathname = getFileNameFromCTFont(m_fontRef, &index);
XeTeXFontInst::initialize(pathname, index, status);
} else {
status = 1;
CFRelease(m_descriptor);
m_descriptor = 0;
}
}
void drawTextWithFeature(CGContextRef context, CTFontDescriptorRef fontDescriptor, CFStringRef feature, int value, CGPoint location)
{
CGFloat fontSize = 25;
CGContextSetTextMatrix(context, CGAffineTransformScale(CGAffineTransformIdentity, 1, 1));
CGContextSetTextPosition(context, location.x, location.y);
CFNumberRef featureValue = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &value);
CFTypeRef featureDictionaryKeys[] = { kCTFontOpenTypeFeatureTag, kCTFontOpenTypeFeatureValue };
CFTypeRef featureDictionaryValues[] = { feature, featureValue };
CFDictionaryRef featureDictionary = CFDictionaryCreate(kCFAllocatorDefault, featureDictionaryKeys, featureDictionaryValues, 2, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFRelease(featureValue);
CFTypeRef featureSettingsValues[] = { featureDictionary };
CFArrayRef fontFeatureSettings = CFArrayCreate(kCFAllocatorDefault, featureSettingsValues, 1, &kCFTypeArrayCallBacks);
CFRelease(featureDictionary);
CFTypeRef fontDescriptorKeys[] = { kCTFontFeatureSettingsAttribute };
CFTypeRef fontDescriptorValues[] = { fontFeatureSettings };
CFDictionaryRef fontDescriptorAttributes = CFDictionaryCreate(kCFAllocatorDefault, fontDescriptorKeys, fontDescriptorValues, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFRelease(fontFeatureSettings);
CTFontDescriptorRef modifiedFontDescriptor = CTFontDescriptorCreateCopyWithAttributes(fontDescriptor, fontDescriptorAttributes);
CFRelease(fontDescriptorAttributes);
CTFontRef font = CTFontCreateWithFontDescriptor(modifiedFontDescriptor, fontSize, nullptr);
CFRelease(modifiedFontDescriptor);
CFMutableStringRef string = CFStringCreateMutable(kCFAllocatorDefault, 0);
CFStringAppend(string, feature);
CFStringAppend(string, value ? CFSTR(" (on)") : CFSTR(" (off)"));
CFStringAppend(string, CFSTR(": ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"));
CGColorRef red = CGColorCreateGenericRGB(1, 0, 0, 1);
CFTypeRef lineKeys[] = { kCTForegroundColorAttributeName };
CFTypeRef lineValues[] = { red };
CFDictionaryRef lineAttributes = CFDictionaryCreate(kCFAllocatorDefault, lineKeys, lineValues, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CGColorRelease(red);
CFAttributedStringRef attributedString = CFAttributedStringCreate(kCFAllocatorDefault, string, lineAttributes);
CFRelease(lineAttributes);
CFRelease(string);
CFMutableAttributedStringRef mutableAttributedString = CFAttributedStringCreateMutableCopy(kCFAllocatorDefault, 0, attributedString);
CFRelease(attributedString);
CTFontRef monospaceFont = CTFontCreateWithName(CFSTR("Courier"), fontSize, nullptr);
CFAttributedStringSetAttribute(mutableAttributedString, CFRangeMake(0, 12), kCTFontAttributeName, monospaceFont);
CFRelease(monospaceFont);
CFAttributedStringSetAttribute(mutableAttributedString, CFRangeMake(12, 52), kCTFontAttributeName, font);
CFRelease(font);
CTLineRef line = CTLineCreateWithAttributedString(mutableAttributedString);
CFRelease(mutableAttributedString);
CTLineDraw(line, context);
CFRelease(line);
}
