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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#pragma once
#include <type_traits>
#include "BLI_string_ref.hh"
#include "BLI_vector.hh"
#include "DNA_node_types.h"
namespace blender::nodes {
class NodeDeclarationBuilder;
class SocketDeclaration {
protected:
std::string name_;
std::string identifier_;
friend NodeDeclarationBuilder;
public:
virtual ~SocketDeclaration() = default;
virtual bNodeSocket &build(bNodeTree &ntree, bNode &node, eNodeSocketInOut in_out) const = 0;
virtual bool matches(const bNodeSocket &socket) const = 0;
virtual bNodeSocket &update_or_build(bNodeTree &ntree, bNode &node, bNodeSocket &socket) const;
StringRefNull name() const;
StringRefNull identifier() const;
};
using SocketDeclarationPtr = std::unique_ptr<SocketDeclaration>;
class NodeDeclaration {
private:
Vector<SocketDeclarationPtr> inputs_;
Vector<SocketDeclarationPtr> outputs_;
friend NodeDeclarationBuilder;
public:
void build(bNodeTree &ntree, bNode &node) const;
bool matches(const bNode &node) const;
Span<SocketDeclarationPtr> inputs() const;
Span<SocketDeclarationPtr> outputs() const;
MEM_CXX_CLASS_ALLOC_FUNCS("NodeDeclaration")
};
class NodeDeclarationBuilder {
private:
NodeDeclaration &declaration_;
public:
NodeDeclarationBuilder(NodeDeclaration &declaration);
template<typename DeclType> DeclType &add_input(StringRef name, StringRef identifier = "");
template<typename DeclType> DeclType &add_output(StringRef name, StringRef identifier = "");
};
/* --------------------------------------------------------------------
* SocketDeclaration inline methods.
*/
inline StringRefNull SocketDeclaration::name() const
{
return name_;
}
inline StringRefNull SocketDeclaration::identifier() const
{
return identifier_;
}
/* --------------------------------------------------------------------
* NodeDeclarationBuilder inline methods.
*/
inline NodeDeclarationBuilder::NodeDeclarationBuilder(NodeDeclaration &declaration)
: declaration_(declaration)
{
}
template<typename DeclType>
inline DeclType &NodeDeclarationBuilder::add_input(StringRef name, StringRef identifier)
{
static_assert(std::is_base_of_v<SocketDeclaration, DeclType>);
std::unique_ptr<DeclType> socket_decl = std::make_unique<DeclType>();
DeclType &ref = *socket_decl;
ref.name_ = name;
ref.identifier_ = identifier.is_empty() ? name : identifier;
declaration_.inputs_.append(std::move(socket_decl));
return ref;
}
template<typename DeclType>
inline DeclType &NodeDeclarationBuilder::add_output(StringRef name, StringRef identifier)
{
static_assert(std::is_base_of_v<SocketDeclaration, DeclType>);
std::unique_ptr<DeclType> socket_decl = std::make_unique<DeclType>();
DeclType &ref = *socket_decl;
ref.name_ = name;
ref.identifier_ = identifier.is_empty() ? name : identifier;
declaration_.outputs_.append(std::move(socket_decl));
return ref;
}
/* --------------------------------------------------------------------
* NodeDeclaration inline methods.
*/
inline Span<SocketDeclarationPtr> NodeDeclaration::inputs() const
{
return inputs_;
}
inline Span<SocketDeclarationPtr> NodeDeclaration::outputs() const
{
return outputs_;
}
} // namespace blender::nodes
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