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.
Previously, OnModify() was called for a lot of items, even when not modified.
For large schematics, the calculation time was unreasonable ( several minutes)
It is now called only a few times.
This moves EESchema DLIST structures to rtree. These changes are more
fundamental than the pcbnew changes from 9163ac543888c01d11d1877d7c1
and 961b22d60 as eeschema operations were more dependent on passing
drawing list references around with SCH_ITEM* objects.
For legacy reasons, it stored left and right "spin" as flipped integers in the file format.
But the code handled the flip in multiple locations rather than just doing it on file io.
This change unifies the internal code and does the mapping in the file I/O.
Change default text size and anchor positions back to mils. Internal
units need to be converted at the source, otherwise the size will get
converted twice in the schematic editor configuration code which will
result in the default text size being off by the conversion factor.
Fixes#3730https://gitlab.com/kicad/code/kicad/issues/3730#
The new connectivity algorithm had a tendency to cleanup
globally, but that could insert undo records from other sheets
into the current screen's undo stack. Needless to say, this
was a recipie for segfaults.
Fixes: lp:1846247
* https://bugs.launchpad.net/kicad/+bug/1846247