Blender Git Loki

WM: move keymap handler to it's own type

Illuminate dead code, using wmEventHandler_KeymapFn from gizmo handler
type where it was never set.

WM: move dropbox handler to it's own type

WM: move operator handler to it's own type

WM: move UI handler to it's own type

WM: move gizmo handler to it's own type

WM: move wmEventHandler.type to a boolean

Currently it's effectively a boolean for file-select handlers.

Prepare for refactoring event handlers into their own types (keymap,
operator, gizmo, ui & dropbox) to help make logic easier to follow.

Cleanup: rename parent_origin_eval to parent_display_origin

The term 'eval' is often used by depsgraph result,
where this is just used for drawing.

Fix edit-curve display for hidden handles

When the first handle was hidden, all others would show as hidden too.

Cleanup: remove unused Object.smoothresh

DNA: rename select_color -> select_id

The term color is misleading, it's an integer id that happens to be
written to a color in some cases, then converted back to an integer.

DNA: rename Object.col -> color

Was confusing, unrelated to:
colbits, col_mask, col_group, actcol & totcol.

Fix (unreported) broken-by-design code in depsgraph's `deg_backup_object_runtime()`

Committing this since it does fix broken logic (previously in that
condition obdata would always be set to NULL, since
`BKE_object_runtime_reset()` is called before).

However, this has presumably been broken that way since 05/2018, so
maybe that whole condition is not needed anymore? Or NULL pointer was
working as well here?

@sergey eyes are required here I guess ;)

Fix Object bbox memleak in depsgraph code.

Caused by rBae2b677dcb5a70f5, Object.runtime has lot of weird specific
handlings in depsgraph...

For now modified `deg_backup_object_runtime()` and
`deg_restore_object_runtime()` to mimic previous behavior regarding
Object bbox (i.e. pass it around, instead of wiping it clean).

Reported in T61660.

Cleanup some Object's bbox code.

Now that bbox is in runtime, no need to explicitely clear it when we
call BKE_object_runtime_reset() two lines below.

Fix (unreported) wrong handling of some parameters combination in `bpy.data.user_map()`

Would add undesired keys...

ID Management Py API: Fix (unreported) crash in some cases.

Would crash when passing some kind of invalid parameters, e.g.:

>>>D.user_map(key_types={'brush'})

ID management: use FOREACH_MAIN_ID in some places.

ID management: use FOREACH_MAIN_ID in some places.

ID management: use FOREACH_MAIN_ID in some places.

ID management: use FOREACH_MAIN_ID in some places.