StyledMapRenderer: render turn restrictions in HiDPI

[simon04]

In 16922/josm:

fix #19705 - StyledMapRenderer: render turn restrictions in HiDPI

[simon04]

In 16923/josm:

see #19705 - Remove unused ImageProvider.createRotatedImage

[simon04]

Revision:16923
Is-Local-Build:true
Build-Date:2020-08-23 23:43:48

Identification: JOSM/1.5 (16923 SVN en) Linux Arch Linux
Memory Usage: 302 MB / 3844 MB (94 MB allocated, but free)
Java version: 15+36-1562, Oracle Corporation, OpenJDK 64-Bit Server VM
Look and Feel: javax.swing.plaf.metal.MetalLookAndFeel
Screen: :0.0 3840x2160 (scaling 3.0x3.0)
Maximum Screen Size: 3840x2160
Best cursor sizes: 16x16 -> 16x16, 32x32 -> 32x32
Desktop environment: i3
VM arguments: []

[Klumbumbus]

On standard dpi the display of these icons became worse.

[simon04]

Confirmed standard DPI behaviour.

I need an icon rendering break. And I'm going on vacation for three weeks. We have a few options:

1. Revert r16922:16923, wait till tomorrow, and release 20.08
2. Release the current nightly r17011 as 20.08 with the known regression of worse turn restriction icons on standard DPI, and fix this for the next release
3. Skip the release 20.08 all together

My preferred variant would be 2. @stoecker, Klumbumbus: what do you think?

[Klumbumbus]

I would prefer variant 1. At some angles the icons look really ugly.

[simon04]

In 17012/josm:

fix #19705 - StyledMapRenderer.drawIcon: bicubic interpolation

Reference: former ImageProvider.createRotatedImage

[simon04]

The fix was easier than anticipated…

[Klumbumbus]

Thx.