97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2019 Blender Foundation. All rights reserved. */
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/** \file
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* \ingroup depsgraph
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*/
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#pragma once
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#include "intern/node/deg_node.h"
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#include "intern/node/deg_node_operation.h"
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struct ID;
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struct PointerRNA;
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struct PropertyRNA;
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namespace blender::deg {
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struct Depsgraph;
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struct Node;
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class RNANodeQueryIDData;
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class DepsgraphBuilder;
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/* For queries which gives operation node or key defines whether we are
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* interested in a result of the given property or whether we are linking some
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* dependency to that property. */
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enum class RNAPointerSource {
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/* Query will return pointer to an entry operation of component which is
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* responsible for evaluation of the given property. */
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ENTRY,
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/* Query will return pointer to an exit operation of component which is
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* responsible for evaluation of the given property.
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* More precisely, it will return operation at which the property is known
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* to be evaluated. */
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EXIT,
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};
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/* A helper structure which wraps all fields needed to find a node inside of
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* the dependency graph. */
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class RNANodeIdentifier {
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public:
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RNANodeIdentifier();
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/* Check whether this identifier is valid and usable. */
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bool is_valid() const;
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ID *id;
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NodeType type;
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const char *component_name;
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OperationCode operation_code;
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const char *operation_name;
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int operation_name_tag;
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};
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/* Helper class which performs optimized lookups of a node within a given
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* dependency graph which satisfies given RNA pointer or RAN path. */
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class RNANodeQuery {
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public:
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RNANodeQuery(Depsgraph *depsgraph, DepsgraphBuilder *builder);
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~RNANodeQuery();
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Node *find_node(const PointerRNA *ptr, const PropertyRNA *prop, RNAPointerSource source);
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protected:
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Depsgraph *depsgraph_;
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DepsgraphBuilder *builder_;
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/* Indexed by an ID, returns RNANodeQueryIDData associated with that ID. */
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Map<const ID *, unique_ptr<RNANodeQueryIDData>> id_data_map_;
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/* Construct identifier of the node which corresponds given configuration
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* of RNA property. */
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RNANodeIdentifier construct_node_identifier(const PointerRNA *ptr,
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const PropertyRNA *prop,
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RNAPointerSource source);
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/* Make sure ID data exists for the given ID, and returns it. */
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RNANodeQueryIDData *ensure_id_data(const ID *id);
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/* Check whether prop_identifier contains rna_path_component.
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*
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* This checks more than a sub-string:
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*
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* prop_identifier contains(prop_identifier, "location")
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* ------------------------ -------------------------------------
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* location true
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* ["test_location"] false
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* pose["bone"].location true
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* pose["bone"].location.x true
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*/
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static bool contains(const char *prop_identifier, const char *rna_path_component);
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};
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bool rna_prop_affects_parameters_node(const PointerRNA *ptr, const PropertyRNA *prop);
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} // namespace blender::deg
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