When opening the symbol editor without loading the schematic editor the
default text size setting is not loaded and was defaulting to the old mils
setting. Convert the default text size to internal units in case the
symbol editor is launched first.
Set default line, bus, and selection highlight width to internal units.
Change new symbol dialog pin position offset control from a spin control
to a text control so the unit binder object can handle converting to and
from internal units.
Fixes#3802https://gitlab.com/kicad/code/kicad/issues/3802
This change completely removes the LIB_ALIAS design pattern an replaces
it by allowing LIB_PART objects to inherit from other LIB_PART objects.
The initial implementation only allows for single inheritance and only
supports the mandatory fields in the derived part because that is all
that the current symbol library file format will support. Once the new
file format is implemented and saving to the old file format is deprecated,
more complex inheritance will be added. The LIB_ALIAS information saved
in the document files was move into the LIB_PART object. This change
impacts virtually every part of the schematic and symbol library editor
code so this commit message is woefully incomplete.
REMOVE: Removed the symbol aliases concept from the schematic and symbol
editors and the symbol viewer.
NEW: Replace the symbol alias concept with simple inheritance that allows
a library symbol to be derived from another library symbol.
Wayne Stambaugh
Simon Richter
Jeff Young
jean-pierre charras