tree 75b33b47d843c4af1c9cdb6cc2c39ce1852d80eb
parent 3f64edec6c6b2e53b42cfd8c6a6765ecee084fc2
author Chet Haase <chet@google.com> 1353525459 -0800
committer Chet Haase <chet@google.com> 1353525673 -0800

Use correct alpha value when a color is not set on a GradientDrawable.

A previous fix ensured that color filters would have a default (black) color to
interact with if no color was set on the GradientDrawable object. However, that fix
assumed an opaque alpha value, which is not always the case. Specifically, calling
setImageAlpha() on an ImageView with a shape drawable source (as in the bug here)
caused the alpha to be set to a translucent value, which was then ignored in the fix
above.

The fix is to account for the current alpha value of the GradientDrawable object
when setting the color used by the paint object.

Issue #7592193 ImageView.setImageAlpha() broken when colorFilter is in use

Change-Id: Ie622ffca776fdd8731ced78ce1f683ca6a51dec8