<Swing Dev> [9] Review request for 8132119 Provide public API for text related methods in SwingUtilities2

[Sergey Bylokhov]

On 27.04.16 0:34, Phil Race wrote:
> Fractional metrics being "off" does not mean that *user space* advances
> need to be integers,
> it refers to *device* space advances. Of course if your API does not
> support floats you have a
> problem - particularly if - you are character advance adding in which
> case it is better to ask the
> font system for the overall advance of the text.
> https://docs.oracle.com/javase/8/docs/api/java/awt/RenderingHints.html#KEY_FRACTIONALMETRICS

The documentation says that in case of "fm-off" the "simplified system 
based on integer device positions is typically used" + "rounding advance 
widths for rasterized glyphs to integer distances", it does not say that 
the "integer distance" should be rounded to the nearest device/pixel. It 
says that "rounding operations as the high quality and very precise 
definition of the shape and metrics of the character glyphs must be 
matched to discrete device pixels" I guess we should confirm the 
specification because results of the fix will be "discrete number of 
device pixels", isn't it?

-- 
Best regards, Sergey.