When Gnucash is shutting down, the TaxTables and BillTerms will be
destroyed/freed and may already have been so there is no point trying
to decrement a reference that is used to stop them being destroyed if
in use.
with the function/declaration that they substituted.
Note that this doesn't use the recommended new GObject creation macros
because the class names in libgnucash/engine don't follow the gnome
naming convention.
First change is to ensure gncEntry rounding is consistent. Internally
calculated values in the entry are never rounded. Consumers of
gncEntry's calculated values can request them either rounded or not.
Next use a pragmatical approach for calculating values on invoices based on
the entry values: do the rounding such that we never
create an unbalanced transaction while posting
That means
- round each entry's net value before summing them in net total
- accumulate all tax totals on invoice level per tax account before rounding
and round before before summing them in a global tax total
Hopefully this will catch a few more rounding issues in this area.
A complete solution can only offered if we allow users to manually correct
tax entries. This requires changes to user interface and data format
so that's not going to happen in gnucash 3.x.
This will probably need more refinement because the multiplications
are still missing rounding methods, but the changes in this commit
will already allow guile code to correctly create entries.
It is split into
- /libgnucash (for the non-gui bits)
- /gnucash (for the gui)
- /common (misc source files used by both)
- /bindings (currently only holds python bindings)
This is the first step in restructuring the code. It will need much
more fine tuning later on.
