On Mon, 6 Jun 2022 22:53:11 GMT, Alexander Zuev <kiz...@openjdk.org> wrote:
> Here, in the name of resolving this issue finally i have reverted the > ImageIcon changes, instead i added some code that creates the properly scaled > version of icon when requested variant is not available. This looks good! > I am not going trough all the experiments with the SHDefExtractIcon again - > at least not in this pull request. I absolutely agree, not in this pull request. However, I'm for submitting a bug or two to explore other possibilities. > I checked and there is no performance impact at all from the latest changes > on the 100% scaled screens due to the extracting an additional icon - looks > like Windows extracts it anyways even if we specify null as a icon > information reference - it just does not pass it down. It could be the case. The shell may keep and likely keeps a cache of file icons for small and large icons. Windows used to have only two sizes of icons: `SM_CXSMICON` and `SM_CXICON` which have 16 and 32 values by default; the values were even customisable via Control Panel. Modern systems deal with more sizes. ------------- PR: https://git.openjdk.java.net/jdk/pull/7805