RFR: 8282526: Default icon is not painted properly [v3]

[Alexander Zuev]

On Tue, 26 Apr 2022 22:06:09 GMT, Alexander Zuev <kizune at openjdk.org> wrote:

>> Detect the situation where we do need to perform interpolation during ImageIcon
>> painting and set a hint to the rendering to perform bicubic approximation so
>> image details are preserved during transition.
>
> Alexander Zuev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Take into account scale factor;
>   Create a new Graphics2D object instead of juggle the rendering hints;

Ok, i have modified PR to use the scale factor to determine if we will need the scaling operation at all and i'm creating a new Graphics2D object so i do not need to swap the rendering hints. Saying that BICUBIC is expensive - i have found any noticeable performance impact when using this code. And it is not always the scale down that needs this hint - even scaling up of the icons when scaling factor is set to 125 or 175% gives much better result for icons that do not have the exact match in size for the said scaling.

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PR: https://git.openjdk.java.net/jdk/pull/7805