Provides a single-point access for modifying the schematic and symbol
elements that allows chaining updates and reverting partial changes.
Standardizes the undo hierarchy between pcb and schematic editors
As this is another layer on the existing undo/redo structure, the
initial commit does not replace all undo/redo calls currently existing.
These will be handled in a series of follow-on commits
Fixes:
* Various special cases around junctions on pins and dragging.
* Some rotations of endpoints resulting in a 45 degree rotate.
* Some cases where it was possible to get a line with neither
endpoint selected, and also substractive unselecting only one of two
selected endpoints unselecting both.
* Use line midpoint for sorting. Start and endpoints aren't
consistent in the order they appear on the X or Y axis. So,
we need to use the midpoint for our position for consistent
sorting when dragging groups of parallel lines where some
have the start and end reversed.
Other:
* Rename TEMP_SELECTED TO SELECTED_BY_DRAG. This is the actual meaning
of the flag, and should reduce confusion as
to when it should be used.
* Move usage of TEMP_SELECTED as an algorithmic mark to CANDIDATE
instead.
* Fix mistaken clearing of START_POINT and ENDPOINT.
* Move endpoint setting and clearing out of narrowSelection, and into
selectPoint and selectMultiple.
* Don't show dangling end warnings on new lines
In symbols, a polyline descr is already a true polyline / polygon descr.
In schematic, a polyline descr was restricted to only 2 points (a line).
A true polyline / polygon descr is now allowed in schematic that support already
polygons.
For compatibility reason, a 2 points polygon (SCH_SHAPE) is converted to a SCH_LINE.
Also fixes a bug where the auto-start-wire stuff was messing up the seleciton
when the selection tool wasn't at the top of the tool stack.
Fixes https://gitlab.com/kicad/code/kicad/issues/5960
dynamic_cast could not resolve the cast chain leading to a null undo
point. Since we know the item to be LIB_ITEM, we can use static_cast
anyway and avoid the overhead.
Fixes#3771 | https://gitlab.com/kicad/code/kicad/issues/3771
* Ensure the lib edit undo checks for pointer validity
* Assert that the frames are the correct type (satisfies coverity)
* Convert C casts to C++ casts
Jeff Young
Seth Hillbrand
aris-kimi
jean-pierre charras
Mike Williams
Ian McInerney
Wayne Stambaugh
Mark Roszko