Depsgraph: Comb code to a better state all over

Some summary of changes:

- Don't use DEG prefix for types and enumerator values:
  the code is already inside DEG namespace.

- Put code where it locally belongs to: avoid having one
  single header file with all sort of definitions in it.

- Take advantage of modern C++11 enabled by default.

1 files changed, 73 insertions, 0 deletions

diff --git a/source/blender/depsgraph/intern/node/deg_node_factory.h b/source/blender/depsgraph/intern/node/deg_node_factory.h
new file mode 100644
index 00000000000..a755ffa71a1
--- /dev/null
+++ b/source/blender/depsgraph/intern/node/deg_node_factory.h
@@ -0,0 +1,73 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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.
+ *
+ * The Original Code is Copyright (C) 2019 Blender Foundation.
+ * All rights reserved.
+ *
+ * Original Author: Joshua Leung
+ * Contributor(s): None Yet
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/depsgraph/intern/node/deh_node_factory.h
+ *  \ingroup depsgraph
+ */
+
+#pragma once
+
+#include "MEM_guardedalloc.h"
+
+#include "intern/node/deg_node.h"
+#include "intern/depsgraph_type.h"
+
+struct ID;
+
+namespace DEG {
+
+struct DepsNodeFactory {
+	virtual NodeType type() const = 0;
+	virtual const char *type_name() const = 0;
+
+	virtual int id_recalc_tag() const = 0;
+
+	virtual Node *create_node(const ID *id,
+	                          const char *subdata,
+	                          const char *name) const = 0;
+};
+
+template <class ModeObjectType>
+struct DepsNodeFactoryImpl : public DepsNodeFactory {
+	virtual NodeType type() const override;
+	virtual const char *type_name() const override;
+
+	virtual int id_recalc_tag() const override;
+
+	virtual Node *create_node(const ID *id,
+	                          const char *subdata,
+	                          const char *name) const override;
+};
+
+/* Register typeinfo */
+void register_node_typeinfo(DepsNodeFactory *factory);
+
+/* Get typeinfo for specified type */
+DepsNodeFactory *type_get_factory(const NodeType type);
+
+}  // namespace DEG
+
+#include "intern/node/deg_node_factory_impl.h"