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Fixed text hit-testing on OS X.

This commit is contained in:
Pietro Gagliardi 2017-02-24 10:29:08 -05:00
parent be56ec3626
commit f65fc1f25e
1 changed files with 5 additions and 2 deletions
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7
darwin/drawtext.m
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@ -262,7 +262,8 @@ void uiDrawTextLayoutHitTest(uiDrawTextLayout *tl, double x, double y, size_t *p
ln = (CTLineRef) CFArrayGetValueAtIndex(tl->lines, i);
// note: according to the docs, we pass a y of 0 for this since the is the baseline of that line (the point is relative to the line)
// TODO is x relative to the line origin?
// note: x is relative to the line origin
x -= tl->lineMetrics[*line].X;
p = CTLineGetStringIndexForPosition(ln, CGPointMake(x, 0));
if (p == kCFNotFound) {
// TODO
@ -284,7 +285,9 @@ double uiDrawTextLayoutByteLocationInLine(uiDrawTextLayout *tl, size_t pos, int
if (pos < range.location || pos > (range.location + range.length))
return -1;
// no point in checking the return; we already validated everything and 0 is a valid return for the first index :/
return CTLineGetOffsetForStringIndex(lr, pos, NULL);
// note: the result is relative to the line origin (TODO find documentation to support this)
// TODO document that these functions do this
return CTLineGetOffsetForStringIndex(lr, pos, NULL) + tl->lineMetrics[line].X;
}
void caretDrawParams(uiDrawContext *c, double height, struct caretDrawParams *p)