[Bug awt/27912] New: Graphics2D should support VALUE_ANTIALIAS_OFF

[hendrich at informatik dot uni-hamburg dot de]

CairoGraphics2D seems to default to RenderingHits.VALUE_ANTIALIASING_ON, which
admittedly is a good choice for most applications. 

However, some applications need to switch anti-aliasing off for correct
behaviour. For example, by circuit simulator uses colors to indicate the
logical level on signal wires (red=one, gray=zero, orange=short-circuit, etc)
and paints  onto the BufferedImage used as its double buffer during animations.
With anti-aliasing on, the resulting color of a wire is a mixed-color instead
of the required pure-color, and the result is unuseable (painting a gray line
on top of a red line results in an ugly dark red mess, see attached
screenshot).

At the moment, a call to Graphics2D.setRenderingHints() seems to ignore the
RenderingHints.VALUE_ANTIALIAS_OFF value for the KEY_ANTIALIASING key.


-- 
           Summary: Graphics2D should support VALUE_ANTIALIAS_OFF
           Product: classpath
           Version: 0.92
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: awt
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hendrich at informatik dot uni-hamburg dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27912