Geometry Nodes: geometry component type warning system

Previously, every node had to create warnings for unsupported input
geometry manually. Now this is automated. Nodes just have to specify
the geometry types they support in the node declaration.

Differential Revision: https://developer.blender.org/D12899

1 files changed, 58 insertions, 0 deletions

diff --git a/source/blender/nodes/NOD_socket_declarations_geometry.hh b/source/blender/nodes/NOD_socket_declarations_geometry.hh
new file mode 100644
index 00000000000..1531f82d67d
--- /dev/null
+++ b/source/blender/nodes/NOD_socket_declarations_geometry.hh
@@ -0,0 +1,58 @@
+/*
+ * 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 "BKE_geometry_set.hh"
+
+#include "NOD_socket_declarations.hh"
+
+namespace blender::nodes::decl {
+
+class GeometryBuilder;
+
+class Geometry : public SocketDeclaration {
+ private:
+  blender::Vector<GeometryComponentType> supported_types_;
+  bool only_realized_data_ = false;
+  bool only_instances_ = false;
+
+  friend GeometryBuilder;
+
+ public:
+  using Builder = GeometryBuilder;
+
+  bNodeSocket &build(bNodeTree &ntree, bNode &node, eNodeSocketInOut in_out) const override;
+  bool matches(const bNodeSocket &socket) const override;
+
+  Span<GeometryComponentType> supported_types() const;
+  bool only_realized_data() const;
+  bool only_instances() const;
+};
+
+class GeometryBuilder : public SocketDeclarationBuilder<Geometry> {
+ public:
+  GeometryBuilder &supported_type(GeometryComponentType supported_type);
+  GeometryBuilder &supported_type(blender::Vector<GeometryComponentType> supported_types);
+  GeometryBuilder &only_realized_data(bool value = true);
+  GeometryBuilder &only_instances(bool value = true);
+};
+
+}  // namespace blender::nodes::decl
+
+namespace blender::nodes {
+MAKE_EXTERN_SOCKET_DECLARATION(decl::Geometry)
+}