Hi,
LinearGradientPaint has three options as to how it is extended beyond
the end point
https://docs.oracle.com/javase/8/docs/api/java/awt/MultipleGradientPaint.CycleMethod.html
So far as I can see this code (and perhaps quartz) can only handle
NO_CYCLE ..
If REFLECT or REPEAT are specified and Quartz can't handle it we will
need to
fall back to the raster path.
I think it would be helpful to extend the test with examples that use
these and
also more than just the two colours .. add a variant that tries more
like 4 ...
-phil.
On 9/22/16, 2:03 AM, Prasanta Sadhukhan wrote:
Hi All,
Please review a fix for jdk9 where it is seen that LinearGradientPaint
is not getting printed on osx.
The below webrev is only for LinearGradientPaint
and RadialGradientPaint will be handled separately.
Bug: https://bugs.openjdk.java.net/browse/JDK-8162796
webrev: http://cr.openjdk.java.net/~psadhukhan/8162796/webrev.00/
Issue was LinearGradientPaint is not handled in osx from jdk7 onwards.
It handles simple GradientPaint.
Code is added as per
https://developer.apple.com/library/content/documentation/GraphicsImaging/Conceptual/drawingwithquartz2d/dq_shadings/dq_shadings.html#//apple_ref/doc/uid/TP30001066-CH207-TPXREF101
to use "CGGradientRef" quartz datatype to support LinearGradientPaint.
CGGradientRef is used compared to CGShadingRef because it is mentioned
in CGGradientRef, i is "Easy to define more than two locations and
colors." as we set 2 or more colors and 2 or more fractions in
LinearGradientPaint.
Regards
Prasanta
