The pointer passing for display options is deprecated. This removes the
excess casting as the EDA_FRAME didn't need the base call with no value.
All requests for display options are now returned const and are updated
with a Set() routine after modification.
In Gerbview, this resolves an issue where the display options were not
stored because it was receiving the NULL from EDA_FRAME.
Items and layers that are hidden in the view should not be used as snap
points. This happens in multiple locations:
1) Grid Helper for normal tools
2) TOOL_BASE::snapToItem for router
Resolves KiPro Issue #116
Fixes: lp:1833128
* https://bugs.launchpad.net/kicad/+bug/1833128
If the layer is not shown, we should not be allowing it's items to be
selected and chosen as the start/end items in the router.
(cherry picked from commit fc1fb7a590)
add overloads for NODE::Add( ... ) taking pointers to specific item types (retain old private add-Functions, they will come in handy later)
LINE overloads now take by reference, to document their special treatment.
updated code throughout affected by these changes