RFR: 8258979: The image didn't show correctly with GTK LAF

[Prasanta Sadhukhan]

On Mon, 8 Jan 2024 07:29:13 GMT, Abhishek Kumar <abhiscxk at openjdk.org> wrote:

> The collapsed icon for JTree is not painted using `Icon.paintIcon(Component c, Graphics g, int x, int y)` in GTK LAF. The collapsed icon is returned from BasicTreeUI class which doesn't contain any icon image whereas the expanded icon is returned from SynthTreeUI class and expanded icon is rendered correctly.
> The proposed fix is to return collapsed icon as an object of collapsed icon wrapper which implements synthIcon and is similar to the expanded icon implementation.
> 
> Test mentioned in JBS is an applet based which is converted to main based now and extended for all installed LAFs on the system.
> 
> No regression caused with the fix, link is attached in JBS .

JBS image suggests that no image is rendered either for collapsed or expanded icon for Ubuntu20.10-x64 but it seems you are seeing expanded icon but not collapsed icon, is that correct? WHich ubuntu you tested against? Did you check on ubuntu 20.10 in case

-------------

PR Comment: https://git.openjdk.org/jdk/pull/17294#issuecomment-1880580485