RFR: 8282526: Default icon is not painted properly [v6]

[Alexey Ivanov]

On Fri, 10 Jun 2022 05:45:27 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> This version look good, just one more thought. Can we extend this approach and do not request all sizes if the user wanted only one image? So if the user will request all images we request that list from the OS, otherwise only one image will be requested and cached, what do you think?

How would you implement this?

I mean the user requests the icon in user's space (right?). On a High DPI system which may change in runtime, a larger icon version is required for rendering. To get a larger icon from native, we have to keep the file name or PIDL and call shell interfaces on COM thread to fetch the icon.

Overall, I like the idea… We may have discussed it. Keeping only sizes that are needed will reduce the memory usage. All in all, it's definitely out of scope for this fix.

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PR: https://git.openjdk.org/jdk/pull/7805