4da580236b
Previously, the attribute accessor were defined in the `geometry_component_*.cc` files. This made sense back in the day, because this attribute API was only used through `GeometryComponent`. However, nowadays this attribute API is independent of `GeometryComponent`. E.g. one can use `mesh.attributes()` without ever creating a component. The refactor contains the following changes: * Move attribute accessors to separate files for each geometry type. E.g. from `geometry_component_mesh.cc` to `mesh_attributes.cc`. * Move implementations of e.g. `Mesh::attributes()` to `mesh.cc`. * Provide access to the `AttributeAccessorFunctions` without actually having a geometry. This will be useful to e.g. implement `attribute_is_builtin_on_component_type` without dummy components. Pull Request: https://projects.blender.org/blender/blender/pulls/130516
120 lines
3.0 KiB
C++
120 lines
3.0 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "BKE_geometry_set.hh"
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#include "BKE_grease_pencil.hh"
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#include "BKE_lib_id.hh"
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#include "DNA_grease_pencil_types.h"
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#include "attribute_access_intern.hh"
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namespace blender::bke {
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/* -------------------------------------------------------------------- */
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/** \name Geometry Component Implementation
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* \{ */
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GreasePencilComponent::GreasePencilComponent() : GeometryComponent(Type::GreasePencil) {}
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GreasePencilComponent::~GreasePencilComponent()
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{
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this->clear();
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}
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GeometryComponentPtr GreasePencilComponent::copy() const
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{
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GreasePencilComponent *new_component = new GreasePencilComponent();
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if (grease_pencil_ != nullptr) {
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new_component->grease_pencil_ = BKE_grease_pencil_copy_for_eval(grease_pencil_);
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new_component->ownership_ = GeometryOwnershipType::Owned;
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}
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return GeometryComponentPtr(new_component);
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}
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void GreasePencilComponent::clear()
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{
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BLI_assert(this->is_mutable() || this->is_expired());
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if (grease_pencil_ != nullptr) {
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if (ownership_ == GeometryOwnershipType::Owned) {
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BKE_id_free(nullptr, grease_pencil_);
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}
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grease_pencil_ = nullptr;
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}
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}
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bool GreasePencilComponent::has_grease_pencil() const
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{
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return grease_pencil_ != nullptr;
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}
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void GreasePencilComponent::replace(GreasePencil *grease_pencil, GeometryOwnershipType ownership)
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{
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BLI_assert(this->is_mutable());
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this->clear();
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grease_pencil_ = grease_pencil;
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ownership_ = ownership;
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}
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GreasePencil *GreasePencilComponent::release()
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{
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BLI_assert(this->is_mutable());
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GreasePencil *grease_pencil = grease_pencil_;
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grease_pencil_ = nullptr;
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return grease_pencil;
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}
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const GreasePencil *GreasePencilComponent::get() const
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{
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return grease_pencil_;
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}
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GreasePencil *GreasePencilComponent::get_for_write()
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{
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BLI_assert(this->is_mutable());
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if (ownership_ == GeometryOwnershipType::ReadOnly) {
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grease_pencil_ = BKE_grease_pencil_copy_for_eval(grease_pencil_);
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ownership_ = GeometryOwnershipType::Owned;
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}
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return grease_pencil_;
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}
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bool GreasePencilComponent::is_empty() const
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{
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return grease_pencil_ == nullptr;
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}
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bool GreasePencilComponent::owns_direct_data() const
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{
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return ownership_ == GeometryOwnershipType::Owned;
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}
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void GreasePencilComponent::ensure_owns_direct_data()
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{
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BLI_assert(this->is_mutable());
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if (ownership_ != GeometryOwnershipType::Owned) {
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if (grease_pencil_) {
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grease_pencil_ = BKE_grease_pencil_copy_for_eval(grease_pencil_);
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}
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ownership_ = GeometryOwnershipType::Owned;
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}
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}
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} // namespace blender::bke
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namespace blender::bke {
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std::optional<AttributeAccessor> GreasePencilComponent::attributes() const
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{
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return AttributeAccessor(grease_pencil_, greasepencil::get_attribute_accessor_functions());
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}
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std::optional<MutableAttributeAccessor> GreasePencilComponent::attributes_for_write()
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{
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GreasePencil *grease_pencil = this->get_for_write();
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return MutableAttributeAccessor(grease_pencil, greasepencil::get_attribute_accessor_functions());
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}
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} // namespace blender::bke
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