Exposes bézier handle data through a new `GreasePencilStrokePointHandle`
class on each point, which provides `position`, `type`, and `select` for both
`point.handle_left` and `point.handle_right`.
Also removes the old separate point attributes:
* `handle_left_type`, `handle_right_type`
* `select_handle_left`, `select_handle_right`
Pull Request: https://projects.blender.org/blender/blender/pulls/137780
This adds two new python properties to `GreasePencilStrokePoint`
* `select_handle_left`: The selection of the left handle of this point
* `select_handle_right`: The selection of the right handle of this point
These could already be written to using `drawing.attributes[".selection_handle_left"]`
and `drawing.attributes[".selection_handle_right"]`, but this makes it
easier to work on individual points from the higher-level
python API.
Resolves#137639.
Pull Request: https://projects.blender.org/blender/blender/pulls/137730
The default value for `FLOAT_COLOR` attributes is white. We can't
change this default easily.
This fix will initialize the attributes accessed through the high-level
python API with their expected default value. In the case of
vertex colors, this is fully transparent black.
Pull Request: https://projects.blender.org/blender/blender/pulls/129638
The issue was that the strokes were not using the `POLY` type and
needed to be tagged.
This adds a function `tag_positions_changed` on the `GreasePencilDrawing`
so that the high-level python API can tag the positions if
the `point.position` attibute is written to.
Pull Request: https://projects.blender.org/blender/blender/pulls/129292
When writing to a property that doesn't exist e.g. `frame.drawing.strokes.test = 42`
no exception would be raised and it would silently fail.
The fix defines the `__slots__` on the classes explicitly which then raises an exception
if the user tries to write something that wasn't previously defined.
Pull Request: https://projects.blender.org/blender/blender/pulls/129047
When e.g. executing `drawing.strokes[0].softness = 3`, the API would
always create a new attribute `softness` even if that attribute existed
already.
The issue was that the code was using the `.get(value, fallback)` syntax
but the `fallback` expression is always evaluated by python.
The fix removes the use of the `fallback` and uses a simple `if/else` to
check if the attribute doesn't exist yet and only then create it.
Pull Request: https://projects.blender.org/blender/blender/pulls/129044
The issue was that the API assumed that the `.selection` attribute
was always on either the point domain for points or the stroke domain
for strokes.
Internally the attribute domain depends on the current selection mode.
To fix the issue, the API now checks for the domain of the attribute
and handles it accordingly.
If the selection attribute is on the `'POINT'` domain:
* Reading the `stroke.select` property will check if *any* of the points of
the stroke are selected and return `True` or `False`.
* Writing to the `stroke.select` property will write `True` or `False` to *all* the
points in the stroke.
Also resolves#128645.
Pull Request: https://projects.blender.org/blender/blender/pulls/128687
Writing to the `curve_type` attribute directly is not allowed as there are other
updates needed and otherwise will result in a crash.
The fix makes sure the `curve_type` is read-only. To change the curve type,
the `grease_pencil.set_curve_type` operator has to be used for now.
This moves the helper python classes from `scripts/modules/grease_pencil_python.py`
to `scripts/modules/_bpy_internal/grease_pencil.py`.
It also cleans up the code a bit more. No functional changes.
Pull Request: https://projects.blender.org/blender/blender/pulls/126403
