The main goal of these changes are to improve static (i.e. build-time)
checks on whether a given data can be allocated and freed with `malloc`
and `free` (C-style), or requires proper C++-style construction and
destruction (`new` and `delete`).
* Add new `MEM_malloc_arrayN_aligned` API.
* Make `MEM_freeN` a template function in C++, which does static assert on
type triviality.
* Add `MEM_SAFE_DELETE`, similar to `MEM_SAFE_FREE` but calling
`MEM_delete`.
The changes to `MEM_freeN` was painful and useful, as it allowed to fix a bunch
of invalid calls in existing codebase already.
It also highlighted a fair amount of places where it is called to free incomplete
type pointers, which is likely a sign of badly designed code (there should
rather be an API to destroy and free these data then, if the data type is not fully
publicly exposed). For now, these are 'worked around' by explicitly casting the
freed pointers to `void *` in these cases - which also makes them easy to search for.
Some of these will be addressed separately (see blender/blender!134765).
Finally, MSVC seems to consider structs defining new/delete operators (e.g. by
using the `MEM_CXX_CLASS_ALLOC_FUNCS` macro) as non-trivial. This does not
seem to follow the definition of type triviality, so for now static type checking in
`MEM_freeN` has been disabled for Windows. We'll likely have to do the same
with type-safe `MEM_[cm]allocN` API being worked on in blender/blender!134771
Based on ideas from Brecht in blender/blender!134452
Pull Request: https://projects.blender.org/blender/blender/pulls/134463
Adds support for saving some view state persistently and uses this to keep the
height of a tree-view, even as the region containing it is hidden, or the file
re-loaded.
Fixes#129058.
Basically the design is to have state stored in the region, so it can be saved
to files. Views types (tree-view, grid-view, etc) can decide themselves if they
have state to be preserved, and what state that is. If a view wants to preserve
state, it's stored in a list inside the region, identified by the view's idname.
Limitation is that multiple instances of the same view would share these bits of
state, in practice I don't think that's ever an issue.
More state can be added to be preserved as needed. Since different kinds of
views may require different state, I was thinking we could add ID properties to
`uiViewState` even, making it much more dynamic.
Pull Request: https://projects.blender.org/blender/blender/pulls/130292
This allows using C++ types in the region runtime data, which will
make it easier to move the remaining runtime data out of the
`ARegion` DNA type and improve code readability in these areas.
Pull Request: https://projects.blender.org/blender/blender/pulls/130196
Delete sceens when their workspace is deleted.
Also remove `IDTYPE_FLAGS_NEVER_UNUSED` tag from bScreen ID type, there
is no more point to keep these IDs around if they are not used, there
are supposed to be mere sub-data of the Workspaces.
Pull Request: https://projects.blender.org/blender/blender/pulls/129975
The preview template (`UILayout.template_preview()`) to display previews
for materials, textures or similar would only work correctly in the
Properties editor. This had explicit logic to trigger rerendering on
changes. When displaying such previews elsewhere (e.g. in the 3D View
sidebar), the only way to have changes reflected would be by resizing
the preview.
This fix makes sure such previews are tagged as dirty and refreshed on
changes to the underlying ID. We do this the same way as tagging the ID
previews as dirty, through a function called by the dependency graph for
such updates.
Pull Request: https://projects.blender.org/blender/blender/pulls/129641
Mainly changes some UI-internal structs allocation, and the Panel
runtime custom data storage.
These changes from C-style alloc/free to C++ new/delete are a step
towards making PointerRNA non-trivial (part of #122431).
Pull Request: https://projects.blender.org/blender/blender/pulls/126698
The RNA path that is generated for Editor properties were mostly
incomplete (e.g. the viewport overlay settings).
- in python tooltips
- from the `Copy (Full) Data Path` operator
- python methods `path_from_id`, `path_resolve` returned incomplete paths
Since a space (editor) is ultimately owned by the screen, we now add the
missing "areas[x].spaces[x]" subpath to any editor.
Nested structs (like the viewport overlay) also need to include this
subpath.
Some editor related structs are not tied to a single space though (and
these cases are therefor not resolved yet):
- Dopesheet is referenced from SpaceGraph, SpaceAction and SpaceNla
- View3DShading is referenced from SpaceView3D but render engines as
well
- FileSelectParams / FileAssetSelectParams / FileAssetSelectIDFilter
need more investigation
NOTE: in case of the VSE, to make this work this also changes the
overlays to be tied to SpaceSeq (the only editor using them)
NOTE: since the above is now in place, adding VSE overlay props to Quick
favourites is now made possible as well (was a leftover from !116604)
Fixes#124527, #113489
Pull Request: https://projects.blender.org/blender/blender/pulls/125365
All of these changes should be trivial, like using `string` read/write
code for strings, and a convert a few usages of 'raw data' read/write
calls to the 'struct' ones.
No behavioral changes expected here.
A few ID types are considered as 'never unused' in Blender (UI related
ones, the Libraries and the Scenes). Local IDs of this type are always
considered as used, even if no other ID links to them.
This was previously fairly weekly defined and implemented (mainly in the
writefile code and the 'tag unused' libquery functions).
This commit formalize this characteristic of ID types by adding a new
`IDTYPE_FLAGS_NEVER_UNUSED` flag, and using this in the few places in
the code that handle unused IDs.
This makes the read and write API functions match more closely, and adds
asserts to check that the data size is as expected.
There are still a few places remaining that use BLO_read_data_address
and similar generic functions, these should eventually be replaced as well.
Pull Request: https://projects.blender.org/blender/blender/pulls/120994
This data was 'hidden' away in a util in
`lib_query.cc`, which made it hard to discover and keep up-to-date.
However, as shown by e.g. #108407, critical low-level features in ID
management code, such as remapping, now rely on this information being
valid.
Also simplify `BKE_library_id_can_use_filter_id` and
`BKE_library_id_can_use_idtype` to make them more generic, relying on
IDTypeInfo to retrieve IDtype-specific info.
No behavioral changes expected here.
This avoids the need for manual memory management/raw pointers,
improves const correctness, improves type safety, simplifies iteration,
and simplifies the process of registering a new asset shelf type.
Pull Request: https://projects.blender.org/blender/blender/pulls/117770
- Use unique_ptr instead of raw pointers
- Use Vector instead of a linked list
- Use a destructor instead of a free function
- Remove the space type template-- it's much clearer to copy functional code
Pull Request: https://projects.blender.org/blender/blender/pulls/117766
This adds a Python API for layout panels that have been introduced in #113584.
Two new methods on `UILayout` are added:
* `.panel(idname, text="...", default_closed=False) -> Optional[UILayout]`
* `.panel_prop(owner, prop_name, text="...") -> Optional[UILayout]`
Both create a panel and return `None` if the panel is collapsed. The difference lies
in how the open-close-state is stored. The first method internally manages the
open-close-state based on the provided identifier. The second one allows for
providing a boolean property that stores whether the panel is open. This is useful
when creating a dynamic of panels and when it is difficult to create a unique idname.
For the `.panel(...)` method, a new internal map on `Panel` is created which keeps
track of all the panel states based on the idname. Currently, there is no mechanism
for freeing any elements once they have been added to the map. This is unlikely to
cause a problem anytime soon, but we might need some kind of garbage collection
in the future.
```python
import bpy
from bpy.props import BoolProperty
class LayoutDemoPanel(bpy.types.Panel):
bl_label = "Layout Panel Demo"
bl_idname = "SCENE_PT_layout_panel"
bl_space_type = 'PROPERTIES'
bl_region_type = 'WINDOW'
bl_context = "scene"
def draw(self, context):
layout = self.layout
scene = context.scene
layout.label(text="Before")
if panel := layout.panel("my_panel_id", text="Hello World", default_closed=False):
panel.label(text="Success")
if panel := layout.panel_prop(scene, "show_demo_panel", text="My Panel"):
panel.prop(scene, "frame_start")
panel.prop(scene, "frame_end")
layout.label(text="After")
bpy.utils.register_class(LayoutDemoPanel)
bpy.types.Scene.show_demo_panel = BoolProperty(default=False)
```
Pull Request: https://projects.blender.org/blender/blender/pulls/116949
Extract:
- Sculpt filter types from the Sculpt menu. Some of these types use a
custom label, different from those defined in the operator RNA,
which was never extracted.
- "Today" and "Yesterday" from the file browser modification date.
- All name_plural from IDs, as these are used in the UI to list which
data block is to be removed, when calling outliner.orphans_purge.
Disambiguate:
- "Area", meaning the measurement of a surface as opposed to a place.
Some messages reported by Satoshi Yamasaki in #43295.
Pull Request: https://projects.blender.org/blender/blender/pulls/113912
The previous limit of 63 bytes for the panel name was an issue for
languages where characters use multiple bytes. The UI would show panel
names truncated that had reasonably long/short names.
It's easy to support dynamically sized strings here, so do that instead
of using fixed size buffers.
Fixes#111927.
Pull Request: https://projects.blender.org/blender/blender/pulls/111979
Previously, BKE level preview image code was in `BKE_icons.h` and `icons.hh`.
While these types are related, I always found this quite hard to navigate since
preview image stuff was just in the middle of icon functions. Plus, people
don't expect preview image functions in icon files, the relationship is not
obvious.
Instead, use focused files that make it easy to quickly navigate them
and see what they are dealing with.
Pull Request: https://projects.blender.org/blender/blender/pulls/111709
