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

Michael Heuer heuermh at acm.org
Wed Mar 2 19:10:10 UTC 2011


Sorry,

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

should read

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


On Wed, 2 Mar 2011, Michael Heuer wrote:

> 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
> > >
> >
> >
>
>




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