There were an issues with data structures defined in headers
and being used by both C and C++ on systems with stdbool
unavailable.
This happened because bool in this case will be defined as
unsigned int, which is 4 bytes. But C++'s bool is only 1
byte and this lead to alignment issues.
Now bool is always 1 byte, also made sure there's no situation
like bool foo = BitField & BitFlag, which could give overflow
issues. Use (BitField & BitFlag) != 0 instead.
Fixes#35553: Compositor broken (Backdrop & Preview)
Issue was caused by wrong array length used
for result of name_uiprefix_id, which shall
actually be 1 byte bugger than MAX_ID_NAME.
Reported by Sebastian Koenig in IRC.
Fix turned out to remove as much "manual UI" from 3D view header as possible. Mode selector and all transform manipulators/orientations stuff are now RNA-based UI (leaving basically only edit mesh select modes with custom handlers, as they have some quite specific features).
To achieve this, four main modifications were done:
* enum-operator-generated menus are now MENU (i.e. dropdown lists) in headers too.
* All bit-flag enums expanded in ROW buttons now have a handling consistent with e.g. layers, or what we already have for transform manipulators, i.e. clicking select only one element, shift-click to select multiple ones.
* Consequently, the three RNA booleans manipulators flags are merged into a single bit-flag enum (yes, this is also an API change, though I doubt many scripts use it).
* Now the width of enum-based dropdown lists is computed from longest item name in enum, no more from a dummy place holder string (when no label/name is given).
All this allows to remove some code from 3DView/transform areas, that was actually mostly duplicating RNA/operator one.
Also done a few optimizations here and there (among others, do not pass &numitems to RNA_property_enum_items() when you do not need it, saves at least an iteration over enum items to count them).
Many thanks to Brecht for the reviews!
Popup menus in nodes, with nodes outside window boundary, were clipped very badly, even
causing it to fill entire window.
Now the clip code nicely translates the menu horizontally to be in view.
- highlighed buttons that were never pressed could be activated by accident when canceling search popup.
- canceling a search popup on a popup would close both.
