91 lines
2.3 KiB
Objective-C
91 lines
2.3 KiB
Objective-C
// 11 may 2017
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#import "uipriv_darwin.h"
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struct uiOpenTypeFeatures {
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NSMutableDictionary *tags;
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};
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uiOpenTypeFeatures *uiNewOpenTypeFeatures(void)
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{
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uiOpenTypeFeatures *otf;
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otf = uiNew(uiOpenTypeFeatures);
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otf->tags = [NSMutableDictionary new];
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return otf;
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}
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void uiFreeOpenTypeFeatures(uiOpenTypeFeatures *otf)
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{
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[otf->tags release];
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uiFree(otf);
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}
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uiOpenTypeFeatures *uiOpenTypeFeaturesClone(const uiOpenTypeFeatures *otf)
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{
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uiOpenTypeFeatures *out;
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out = uiNew(uiOpenTypeFeatures);
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out->tags = [otf->tags mutableCopy];
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return out;
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}
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// why are there no NSNumber methods for stdint.h or the equivalent core foundation types?...
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#define mkMapObject(tag) [NSNumber numberWithUnsignedLongLong:((unsigned long long) tag)]
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#define mapObjectValue(num) ((uint32_t) [num unsignedLongLongValue])
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void uiOpenTypeFeaturesAdd(uiOpenTypeFeatures *otf, char a, char b, char c, char d, uint32_t value)
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{
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NSNumber *tn, *vn;
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tn = mkMapObject(mkTag(a, b, c, d));
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vn = mkMapObject(value);
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[otf->tags setObject:vn forKey:tn];
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}
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void uiOpenTypeFeaturesRemove(uiOpenTypeFeatures *otf, char a, char b, char c, char d)
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{
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NSNumber *tn;
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tn = mkMapObject(mkTag(a, b, c, d));
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[otf->tags removeObjectForKey:tn];
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}
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int uiOpenTypeFeaturesGet(uiOpenTypeFeatures *otf, char a, char b, char c, char d, uint32_t *value)
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{
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NSNumber *tn, *vn;
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tn = mkMapObject(mkTag(a, b, c, d));
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vn = (NSNumber *) [otf->tags objectForKey:tn];
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if (vn == nil)
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return 0;
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*value = mapObjectValue(vn);
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// TODO release vn?
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return 1;
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}
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void uiOpenTypeFeaturesForEach(uiOpenTypeFeatures *otf, uiOpenTypeFeaturesForEachFunc f, void *data)
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{
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[otf->tags enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL *stop) {
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NSNumber *tn = (NSNumber *) key;
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NSNumber *vn = (NSNumber *) value;
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uint32_t tag;
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uint8_t a, b, c, d;
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tag = mapObjectValue(tn);
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a = (uint8_t) ((tag >> 24) & 0xFF);
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b = (uint8_t) ((tag >> 16) & 0xFF);
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c = (uint8_t) ((tag >> 8) & 0xFF);
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d = (uint8_t) (tag & 0xFF);
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// TODO handle return value
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(*f)((char) a, (char) b, (char) c, (char) d,
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mapObjectValue(vn), data);
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}];
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}
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int uiOpenTypeFeaturesEqual(const uiOpenTypeFeatures *a, const uiOpenTypeFeatures *b)
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{
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return [a->tags isEqualToDictionary:b->tags];
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}
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// actual conversion to a feature dictionary is handled in aat.m; see there for details
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