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