[OpenJDK 2D-Dev] seeking help with text rendering

[Michael Heuer]

Hello Phil,

Thanks for your reply.

On Windows XP I see that jlabel-*, jtextcomponent-*, pswing-*, and
phtmlview-* all render the same, in that they ignore the LCD-specific
rendering hints (compare e.g. jlabel-lcd-hbgr and java2d-lcd-hbgr, which
look very different on my LCD monitor, since HBGR is not appropriate for
it).


PText uses java.awt.TextLayout.draw to render text, see

PText.java, line 522
http://code.google.com/p/piccolo2d/source/browse/piccolo2d.java/trunk/core/src/main/java/org/piccolo2d/nodes/PText.java#522


Why this should look different than Graphics2D.drawString, as in

AbstractJava2DTextRenderingBenchmark, line 68
http://dishevelled.svn.sourceforge.net/viewvc/dishevelled/trunk/text-rendering-benchmark/src/main/java/org/dishevelled/text/java2d/AbstractJava2DTextRenderingBenchmark.java?revision=996&view=markup

   michael


On Wed, 2 Mar 2011, Phil Race wrote:

> Michael,
>
> I don't know anything about what the P* stuff is, and can't speak for OS X,
> but the results all look correct in the screen shots for Sun/Oracle's
> Swing / Java2D on Windows. So I'd say your problems are in the P* stuff.
> Remember "gasp" may not be AA-ed - it AA's only for the sizes at which
> the font 'gasp' table says to do so.
>
> -phil.
>
> On 3/2/2011 10:18 AM, Michael Heuer wrote:
> > Hello,
> >
> > We have an outstanding issue
> >
> > Text rendering in PText and JLabel via PSwing appear not to respect
> > antialiasing rendering hints
> >
> > http://code.google.com/p/piccolo2d/issues/detail?id=117
> >
> >
> > where code that goes down slightly different text rendering paths looks
> > competely different with regards to antialiasing.  There is a runnable jar
> > attached to that issue that demonstrates the problem.
> >
> > We're looking for some help analyzing where the issue lies, in our
> > library, in Swing text components, in Swing look&  feel, or in the Java2D
> > renderer(s).
> >
> > Thank you,
> >
> >     michael
> >
>
>