Ugh, Core Text and NSLayoutManager produce inconsistent output :|
This commit is contained in:
parent
d8316790a0
commit
313905230d
|
@ -0,0 +1,43 @@
|
||||||
|
diff --git a/darwin/drawtext.m b/darwin/drawtext.m
|
||||||
|
index a84b68b..c95bbde 100644
|
||||||
|
--- a/darwin/drawtext.m
|
||||||
|
+++ b/darwin/drawtext.m
|
||||||
|
@@ -108,7 +108,7 @@ static CFAttributedStringRef attrstrToCoreFoundation(uiAttributedString *s, uiDr
|
||||||
|
boundsNoLeading = CTLineGetBoundsWithOptions(line, kCTLineBoundsExcludeTypographicLeading);
|
||||||
|
|
||||||
|
// this is equivalent to boundsNoLeading.size.height + boundsNoLeading.origin.y (manually verified)
|
||||||
|
- ascent = bounds.size.height + bounds.origin.y;
|
||||||
|
+if(i!=5) ascent = bounds.size.height + bounds.origin.y;
|
||||||
|
descent = -boundsNoLeading.origin.y;
|
||||||
|
// TODO does this preserve leading sign?
|
||||||
|
leading = -bounds.origin.y - descent;
|
||||||
|
@@ -119,11 +119,20 @@ static CFAttributedStringRef attrstrToCoreFoundation(uiAttributedString *s, uiDr
|
||||||
|
if (leading > 0)
|
||||||
|
leading = floor(leading + 0.5);
|
||||||
|
|
||||||
|
+NSLog(@"line %d", (int)i);
|
||||||
|
+NSLog(@"ypos %g", ypos);
|
||||||
|
+if (i>0) {
|
||||||
|
+NSLog(@"expected Y: %g", metrics[i - 1].Y - metrics[i - 1].Height);
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
metrics[i].X = origins[i].x;
|
||||||
|
metrics[i].Y = origins[i].y - descent - leading;
|
||||||
|
metrics[i].Width = bounds.size.width;
|
||||||
|
metrics[i].Height = ascent + descent + leading;
|
||||||
|
|
||||||
|
+NSLog(@"o %g a %g d %g l %g", origins[i].y, ascent, descent, leading);
|
||||||
|
+NSLog(@"actual Y: %g height: %g", metrics[i].Y, metrics[i].Height);
|
||||||
|
+
|
||||||
|
metrics[i].BaselineY = origins[i].y;
|
||||||
|
metrics[i].Ascent = ascent;
|
||||||
|
metrics[i].Descent = descent;
|
||||||
|
@@ -148,7 +157,7 @@ static CFAttributedStringRef attrstrToCoreFoundation(uiAttributedString *s, uiDr
|
||||||
|
metrics[i].BaselineY = size.height - metrics[i].BaselineY;
|
||||||
|
// TODO also adjust by metrics[i].Height?
|
||||||
|
}
|
||||||
|
-
|
||||||
|
+NSLog(@"===");
|
||||||
|
uiFree(origins);
|
||||||
|
return metrics;
|
||||||
|
}
|
Loading…
Reference in New Issue