This adds the concept of editing _other_ items to the one
that informs the POINT_EDIT_BEHAVIOR - in this case connected
lines. This is one of the motivations behind this system,
as it will allow to bring similar logic to Pcbnew.
Some shapes, like arcs and beziers have "lines" that
can be useful to see when editing, but aren't directly
editable and may not overlap the object's own lines.
So make it possible to, indepedently:
- Turn off the centre-point drag handle affordance
- Show the actual line segment on screen.
Add direct handling of quadratic beziers to save compute time and number
of points. Update cubic interpolation to reduce number of points
generated for a given smoothness
Cache data on open and used cached data to avoid multiple re-calcs
Remove minimum line length and number of segments and replace with
standard max error level. Allows us to specify the tolerance of bezier
interpolation
Added Distance(VECTOR2) function that returns a double. Removed
superfluous EuclideanNorm, GetLineLength, integer constructor for
EDA_ANGLE (this promotes to double in the CTOR), DistanceLinePoint and
HitTestPoints
Also extended the size for arc calculations that get distances to center
points to avoid overflow
Includes:
- Fix GAL to draw closed polygons in eeschema
- Add functionality to eeschema to draw arbitary polygons
- Update polygon item previews to have customisable edge colour
- Add new SCH_RULE_AREA class, derived from a poly SCH_SHAPE
- Add SCH_RULE_AREA to paint and plot methods
- Add new rule area color preference to themes
Also moves EE_POINT_EDITOR to SCH_COMMIT. (There was another refresh
bug in RollbackSymbolFromUndo() -- whose only caller was the
EE_POINT_EDITOR's old undo code).
Fixes https://gitlab.com/kicad/code/kicad/-/issues/14274
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
