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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2013 Blender Foundation. All rights reserved. */
/** \file
* \ingroup depsgraph
*/
#pragma once
#include "BLI_string_ref.hh"
#include "RNA_types.h"
#include "intern/builder/deg_builder_relations.h"
struct FCurve;
namespace blender::deg {
/* Helper class for determining which relations are needed between driver evaluation nodes. */
class DriverDescriptor {
public:
/**
* Drivers are grouped by their RNA prefix. The prefix is the part of the RNA
* path up to the last dot, the suffix is the remainder of the RNA path:
*
* \code{.unparsed}
* fcu->rna_path rna_prefix rna_suffix
* ------------------------------- ---------------------- ----------
* 'color' '' 'color'
* 'rigidbody_world.time_scale' 'rigidbody_world' 'time_scale'
* 'pose.bones["master"].location' 'pose.bones["master"]' 'location'
* \endcode
*/
StringRef rna_prefix;
StringRef rna_suffix;
public:
DriverDescriptor(PointerRNA *id_ptr, FCurve *fcu);
bool driver_relations_needed() const;
bool is_array() const;
/** Assumes that 'other' comes from the same RNA group, that is, has the same RNA path prefix. */
bool is_same_array_as(const DriverDescriptor &other) const;
OperationKey depsgraph_key() const;
private:
PointerRNA *id_ptr_;
FCurve *fcu_;
bool driver_relations_needed_;
PointerRNA pointer_rna_;
PropertyRNA *property_rna_;
bool is_array_;
bool determine_relations_needed();
void split_rna_path();
bool resolve_rna();
};
} // namespace blender::deg
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