There has been a long standing (since the beginning of the project?)
issue with sharing schematics between projects. It has been somewhat
supported for complex hierarchies (a sheet shared multiple times in a
single design) but it has not been well supported for simple hierarchies
(the symbol references cannot be changed in the shared schematic). This
issue has been resolved by moving all of the symbol instance sheet paths
from the symbol definitions in the all of the project files and save all
symbol path instances in the root sheet. This ensures that orphaned
symbol instance paths do not accumulate in shared schematic files and
that designs that reuse schematic in simple hierarchies can how have
different references. It also allows the root schematic from one project
to be uses as a sub-sheet in another project.
When legacy schematics are loaded, all sheet and symbol UUIDs are
converted from time stamps to true UUIDs. This is done to ensure there
are no sheet path instance clashes between projects. That being said,
there are no checks for this. It is assumed that the probability of
UUID clashes is so low that it doesn't make sense to test for them.
This is a very large and potentially disruptive change so this will be an
unusually long and detailed commit message.
The new file formats are now the default in both the schematic and symbol
library editors. Existing symbol libraries will be saved in their current
format until new features are added to library symbols. Once this happens,
both the legacy schematic and symbol file formats will be no longer be
savable and existing libraries will have to be converted. Saving to the
legacy file formats is still available for round robin testing and should
not be used for normal editing.
When loading the legacy schematic file, it is imperative that the schematic
library symbols are rescued and/or remapped to valid library identifiers.
Otherwise, there will be no way to link to the original library symbol and
the user will be required manually set the library identifier. The cached
symbol will be saved in the schematic file so the last library symbol in
the cache will still be used but there will be no way to update it from the
original library.
The next save after loading a legacy schematic file will be converted to
the s-expression file format. Schematics with hierarchical sheets will
automatically have all sheet file name extensions changed to .kicad_sym
and saved to the new format as well.
Appending schematics requires that the schematic to append has already been
converted to the new file format. This is required to ensure that library
symbols are guaranteed to be valid for the appended schematic.
The schematic symbol library symbol link resolution has been moved out of
the SCH_COMPONENT object and move into the SCH_SCREEN object that owns the
symbol. This was done to ensure that there is a single place where the
library symbol links get resolved rather than the dozen or so different
code paths that previously existed. It also removes the necessity of the
SCH_COMPONENT object of requiring any knowledge of the symbol library table
and/or the cache library.
When opening an s-expression schematic, the legacy cache library is not
loaded so any library symbols not rescued cannot be loaded. Broken library
symbol links will have to be manually resolved by adding the cache library
to the symbol library table and changing the links in the schematic symbol.
Now that the library symbols are embedded in the schematic file, the
SCH_SCREEN object maintains the list of library symbols for the schematic
automatically. No external manipulation of this library cache should ever
occur.
ADDED: S-expression schematic and symbol library file formats.
Also fixes a bug where we were depending on the old deque stuff's
deterministic traversal, which isn't provided by the new RTree stuff.
Fixes https://gitlab.com/kicad/code/kicad/issues/2433
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.
Add missing check for root sheet when searching sheet hierarchies for
already loaded schematics. This prevents the root sheet from being
omitted when adding new sheets using the root sheet file name.
CHANGED: Make file name tests case sensitive so that schematic sheet
file names on non-Windows systems can be uses as expected.
Warn users when attempting to use schematic file names that only vary
by case sensitivity that doing so will result in a project that is not
portable to Windows.
Fixes lp:1843415
https://bugs.launchpad.net/kicad/+bug/1843415
Do not add cache library from another project to old library list. This
is wrong and can cause all kinds of symbol library linking issues. It's
better to force the user to fix broken symbol library links than the false
security of using multiple cache libraries.
Use correct paths when appending schematic outside of the current project
path when hierarchical sheets are appended. If the path can be relative,
give the user the option to use either relative or absolute paths.
Do not change symbol library names in schematics appended from a source
outside the current project. This will almost ensure the symbol library
links will be broken in the source project.
When the appended schematic is from another project, attempt to check all
of the possible combinations of symbol library table importing that could
cause broken symbol library links and give the user the option of canceling
the append operation or live with the possibility that there may be broken
symbol library links.
When the append schematic is in the current project path but not part of
the schematic, check to see if there are any library nicknames that do
no exist in the project symbol library table and give the user a chance
to cancel the append process.
Force the symbol library links whenever the symbol library table has been
modified. This will use the cache as a fallback when a library has been
removed that contains links in the schematic rather than display.
Fix the SCH_COMPONENT symbol resolver when falling back to the cache. The
resolver was using the LIB_ID ':' notation which was failing. Replacing
':' with '_' fixed this issue. This was also an issue when generating the
symbol message panel information.
Convert wxLogDebug to wxLogTrace in symbol resolver code path. Add new
trace type KICAD_SYM_RESOLVE.
Fixes lp:1821606
https://bugs.launchpad.net/kicad/+bug/1821606
Bus upgrades: core new connectivity code
Bus upgrades: eeschema integration and modifications
Bus upgrades: eeschema dialogs
Bus upgrades: netlist export
Bus upgrades: file format changes
Previously, when creating a new instance of a sheet, the full set of references
was cleared.
Moreover, if this sheet has sub-sheets, the annotation was incorrectly handled
Now only (and all) new sheet path(s) created have a reference cleared, as expected.
(new sheet paths can be more than one, if the new instance of the sheet has sub-sheets)
Fixes: lp:1789048
https://bugs.launchpad.net/kicad/+bug/1789048
Wayne Stambaugh
Jeff Young
Jon Evans
Seth Hillbrand
Seth Hillbrand
Tomasz Wlostowski
jean-pierre charras