JDK-8172960 : [macosx] Text layout for AAT fonts ignores fractional metrics setting on macOS
- Type: Bug
- Component: client-libs
- Sub-Component: 2d
- Affected Version: 9
- Priority: P3
- Status: Closed
- Resolution: Duplicate
- OS: os_x
- CPU: generic
- Submitted: 2017-01-12
- Updated: 2017-01-19
- Resolved: 2017-01-18
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Resolved: Release in which this issue/RFE has been resolved.
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| JDK 9 |
|---|
9Resolved  |
Related Reports
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Duplicate :
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Description
FULL PRODUCT VERSION :
java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+151)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+151, mixed mode)
ADDITIONAL OS VERSION INFORMATION :
macOS Sierra 10.12.2
A DESCRIPTION OF THE PROBLEM :
Text layout for AAT fonts on macOS ignores fractional metrics hint - result of layout always has floating-point advances, as if fractional metrics were enabled.
REGRESSION. Last worked in version 8u112
ADDITIONAL REGRESSION INFORMATION:
java version "1.8.0_112"
Java(TM) SE Runtime Environment (build 1.8.0_112-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.112-b16, mixed mode)
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run a sample program given below.
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The first and the third line of output contain integer values.
ACTUAL -
Third line contains floating-point value.
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
import java.awt.*;
import java.awt.font.*;
public class FontLayoutTest {
public static void main(String[] args) {
Font ttFont = new Font("Arial", Font.PLAIN, 12);
Font aatFont = new Font("Menlo", Font.PLAIN, 12);
String text = "a";
FontRenderContext noFmFrc = new FontRenderContext(null, true, false);
FontRenderContext fmFrc = new FontRenderContext(null, true, true);
System.out.println(new TextLayout(text, ttFont, noFmFrc).getAdvance());
System.out.println(new TextLayout(text, ttFont, fmFrc).getAdvance());
System.out.println(new TextLayout(text, aatFont, noFmFrc).getAdvance());
System.out.println(new TextLayout(text, aatFont, fmFrc).getAdvance());
}
}
---------- END SOURCE ----------
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