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blender-archive/source/blender/editors/include/ED_curves.h
Falk David d650162ecd Curves: Add initial undo system
This adds an `UndoType` for the `Curves` object, for edit mode.
For now, this will only store the `CurvesGeometry` at every step.
Other properties such as the `selection_domain` or the `surface` object
will have to be dealt with in subsequent commits.

Differential Revision: https://developer.blender.org/D16979
2023-01-20 16:32:36 +01:00

106 lines
3.2 KiB
C++

/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup editors
*/
#pragma once
struct bContext;
struct Curves;
#ifdef __cplusplus
extern "C" {
#endif
/* -------------------------------------------------------------------- */
/** \name C Wrappers
* \{ */
void ED_operatortypes_curves(void);
void ED_curves_undosys_type(struct UndoType *ut);
/**
* Return an owning pointer to an array of point normals the same size as the number of control
* points. The normals depend on the normal mode for each curve and the "tilt" attribute and may be
* calculated for the evaluated points and sampled back to the control points.
*/
float (*ED_curves_point_normals_array_create(const struct Curves *curves_id))[3];
/** \} */
#ifdef __cplusplus
}
#endif
#ifdef __cplusplus
# include "BKE_attribute.hh"
# include "BLI_index_mask.hh"
# include "BLI_vector.hh"
# include "BLI_vector_set.hh"
# include "BKE_curves.hh"
namespace blender::ed::curves {
bool object_has_editable_curves(const Main &bmain, const Object &object);
bke::CurvesGeometry primitive_random_sphere(int curves_size, int points_per_curve);
VectorSet<Curves *> get_unique_editable_curves(const bContext &C);
void ensure_surface_deformation_node_exists(bContext &C, Object &curves_ob);
/* -------------------------------------------------------------------- */
/** \name Poll Functions
* \{ */
bool editable_curves_with_surface_poll(bContext *C);
bool editable_curves_in_edit_mode_poll(bContext *C);
bool curves_with_surface_poll(bContext *C);
bool editable_curves_poll(bContext *C);
bool curves_poll(bContext *C);
/** \} */
/* -------------------------------------------------------------------- */
/** \name Selection
*
* Selection on curves can be stored on either attribute domain: either per-curve or per-point. It
* can be stored with a float or boolean data-type. The boolean data-type is faster, smaller, and
* corresponds better to edit-mode selections, but the float data type is useful for soft selection
* (like masking) in sculpt mode.
*
* The attribute API is used to do the necessary type and domain conversions when necessary, and
* can handle most interaction with the selection attribute, but these functions implement some
* helpful utilities on top of that.
* \{ */
void fill_selection_false(GMutableSpan span);
void fill_selection_true(GMutableSpan span);
/**
* Return true if any element is selected, on either domain with either type.
*/
bool has_anything_selected(const Curves &curves_id);
/**
* Find curves that have any point selected (a selection factor greater than zero),
* or curves that have their own selection factor greater than zero.
*/
IndexMask retrieve_selected_curves(const Curves &curves_id, Vector<int64_t> &r_indices);
/**
* Find points that are selected (a selection factor greater than zero),
* or points in curves with a selection factor greater than zero).
*/
IndexMask retrieve_selected_points(const Curves &curves_id, Vector<int64_t> &r_indices);
/**
* If the ".selection" attribute doesn't exist, create it with the requested type (bool or float).
*/
void ensure_selection_attribute(Curves &curves_id, const eCustomDataType create_type);
/** \} */
} // namespace blender::ed::curves
#endif