<Swing Dev> RFR: 8256019: JLabel HTML text does not support translucent text colors [v3]

[Sergey Bylokhov]

On Tue, 24 Nov 2020 13:02:12 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> Issue is a JLabel with a translucent foreground color properly renders plain text, but with HTML text, the alpha component is discarded and the text is rendered using an opaque color.
>> As per https://www.w3schools.com/cssref/func_rgba.asp, CSS supports rgba() to support alpha and render translucent text color
>> but support for rgba() is not present in JDK html text rendering.
>> 
>> Added support for rgba() to render translucent text color.
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Revert unneeded additional code

test/jdk/javax/swing/JLabel/TestTranslucentLabelText.java line 27:

> 25:  * @bug 8256019
> 26:  * @summary Verifies if JLabel HTML text support translucent text colors
> 27:  * @run main/manual TestTranslucentLabelText

Is it necessary to make this test manual? probably we can just draw the label to the buffered image and check resulted content?

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PR: https://git.openjdk.java.net/jdk/pull/1158