Some improvements related to imagery offsets in LayerListDialog

[naoliv]

1) When we leave the mouse at the offset icon, instead displaying layer has a user-definedd offset (click to remove offset) could we have something like layer has an offset of 'X, Y' (click to remove offset)? (ie, display the current offset value)

2) Sometimes we unintentionally click at the offset icon and we lose the offset (and we are not able to remember or set the offset to that same value as before).

At the context menu, could we have an option to load the last offset value?
JOSM would then always store the last value; if we inadvertently reset the value, then we could simply click on Load last offset value

3) Still at the context menu, could we have a Quick save offset value option?

JOSM:

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2019-01-17 18:31:25 +0100 (Thu, 17 Jan 2019)
Revision:14703
Build-Date:2019-01-18 02:32:18
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (14703 pt_BR) Linux Debian GNU/Linux buster/sid
Memory Usage: 408 MB / 2048 MB (38 MB allocated, but free)
Java version: 11.0.2+7-Debian-1, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
Java package: openjdk-11-jre:amd64-11.0.2+7-1
Java ATK Wrapper package: libatk-wrapper-java:all-0.33.3-21
VM arguments: [-Dawt.useSystemAAFontSettings=gasp]
Dataset consistency test: No problems found

[simon04]

In 15733/josm:

see #17220 - LayerListDialog: show imagery offset in tooltip

[simon04]

In 15734/josm:

see #17220 - LayerListDialog: re-enable previous offset on click

[simon04]

Ad 1: Implemented in r15733
Ad 2: Implemented in r15734
Ad 3: How would Quick save offset value be different from New offset (which has the current values pre-filled and can be used to store it under a specified name)?

[simon04]

Ticket #17079 has been marked as a duplicate of this ticket.

[Klumbumbus]

Replying to simon04:

Ad 1: Implemented in r15733
Ad 2: Implemented in r15734
Ad 3: How would Quick save offset value be different from New offset (which has the current values pre-filled and can be used to store it under a specified name)?

I too think New offset is enough, so the ticket can be closed I guess.