Remove extraneous use of FLAG0 from tracks cleaner (it was checked but
never set).
Fix issue in expand connections where two parts of it couldn't agree
on the same flag (BUSY vs SKIP_STRUCT), and where the second part was
clearing the flag instead of setting it.
Remove obsolete HIGHLIGHT infrastructure (we now use selection).
Remove extraneous use of BUSY flag in several places (it was never
set).
Set up a new lineage for SCH_ITEMS to get back to the SCHEMATIC
they live on: Items will all be parented to the SCH_SCREEN that
they are added to, and each SCH_SCREEN will point back to the
SCHEMATIC that it is part of. Note that this hierarchy is not
the same as the actual schematic hierarchy, which continues to
be managed through SCH_SHEETs and SCH_SHEET_PATHS.
CHANGED: Settings are now stored in versioned sub-directories
ADDED: First-run dialog for migrating settings from a previous version
CHANGED: Settings are now stored as JSON files instead of wxConfig-style INI files
CHANGED: Color settings are now all stored in a separate settings file
CHANGED: The symbol editor and footprint editor now have their own settings files
CHANGED: Color settings are no longer exposed through BOARD object
CHANGED: Page layout editor now uses Eeschema's color scheme
Settings are now managed through a central SETTINGS_MANAGER held by PGM_BASE.
Existing settings will be migrated from the wxConfig format on first run of each application.
Per-application settings are now stored in one class for each application.
When searching for fields, the code was sometimes comparing translated and not translated names.
This is an issue for mandatory fields, in non English languages.
Translated field names should be used only in messages.
The grid apply code was always preventing empty fields. Change this the
broken behavior to allow any field to be empty except the reference and
value fields.
Fixes lp:1832722
https://bugs.launchpad.net/kicad/+bug/1832722
Make a few things const (specficially the reference into
m_fieldStore - we should commit to not modifying that in this
function.
Also avoid a couple of needless string copies.
Also explicitly dereference the into a (non-const) reference at the outset.
For the whole if this function, comp is the same object and may not
be null (as it is used unchecked).