Improve performance of Add/Remove/Connect/Change nodes in visual shader

editor/plugins/visual_shader_editor_plugin.h

@@ -54,6 +54,10 @@ class VisualShaderGraphPlugin : public Reference {
 	GDCLASS(VisualShaderGraphPlugin, Reference);
 
 private:
+	struct InputPort {
+		Button *default_input_button;
+	};
+
 	struct Port {
 		TextureButton *preview_button;
 	};
@@ -64,12 +68,16 @@ private:
 		GraphNode *graph_node;
 		bool preview_visible;
 		int preview_pos;
+		Map<int, InputPort> input_ports;
 		Map<int, Port> output_ports;
 		VBoxContainer *preview_box;
+		Control *custom_editor;
+		int editor_pos;
 	};
 
 	Ref<VisualShader> visual_shader;
 	Map<int, Link> links;
+	List<VisualShader::Connection> connections;
 	bool dirty = false;
 
 protected:
@@ -77,15 +85,29 @@ protected:
 
 public:
 	void register_shader(VisualShader *p_visual_shader);
+	void set_connections(List<VisualShader::Connection> &p_connections);
 	void register_link(VisualShader::Type p_type, int p_id, VisualShaderNode *p_visual_node, GraphNode *p_graph_node);
 	void register_output_port(int p_id, int p_port, TextureButton *p_button);
+	void register_custom_editor(int p_node_id, Control *p_custom_editor);
+	void register_editor_pos(int p_node_id, int p_pos);
 	void clear_links();
 	void set_shader_type(VisualShader::Type p_type);
 	bool is_preview_visible(int p_id) const;
 	bool is_dirty() const;
 	void make_dirty(bool p_enabled);
-
+	void add_node(VisualShader::Type p_type, int p_id);
-	void show_port_preview(int p_node_id, int p_port_id);
+	void remove_node(VisualShader::Type p_type, int p_id);
+	void connect_nodes(VisualShader::Type p_type, int p_from_node, int p_from_port, int p_to_node, int p_to_port);
+	void disconnect_nodes(VisualShader::Type p_type, int p_from_node, int p_from_port, int p_to_node, int p_to_port);
+	void show_port_preview(VisualShader::Type p_type, int p_node_id, int p_port_id);
+	void set_node_position(VisualShader::Type p_type, int p_id, const Vector2 &p_position);
+	void set_node_size(VisualShader::Type p_type, int p_id, const Vector2 &p_size);
+	void refresh_node_ports(VisualShader::Type p_type, int p_node);
+	void update_property_editor(VisualShader::Type p_type, int p_node_id);
+	void update_property_editor_deferred(VisualShader::Type p_type, int p_node_id);
+	void set_input_port_default_value(VisualShader::Type p_type, int p_node_id, int p_port_id, Variant p_value);
+	void register_default_input_button(int p_node_id, int p_port_id, Button *p_button);
+	VisualShader::Type get_shader_type() const;
 
 	VisualShaderGraphPlugin();
 	~VisualShaderGraphPlugin();
@@ -328,6 +350,7 @@ class VisualShaderEditor : public VBoxContainer {
 
 	bool _is_available(int p_mode);
 	void _update_created_node(GraphNode *node);
+	void _update_uniforms();
 
 protected:
 	void _notification(int p_what);
@@ -339,6 +362,7 @@ public:
 	void remove_plugin(const Ref<VisualShaderNodePlugin> &p_plugin);
 
 	static VisualShaderEditor *get_singleton() { return singleton; }
+	VisualShaderGraphPlugin *get_graph_plugin() { return graph_plugin.ptr(); }
 
 	void clear_custom_types();
 	void add_custom_type(const String &p_name, const Ref<Script> &p_script, const String &p_description, int p_return_icon_type, const String &p_category, bool p_highend);

scene/resources/visual_shader.cpp

@@ -40,7 +40,6 @@ bool VisualShaderNode::is_simple_decl() const {
 
 void VisualShaderNode::set_output_port_for_preview(int p_index) {
 	port_preview = p_index;
-	emit_signal("show_port_preview", p_index);
 }
 
 int VisualShaderNode::get_output_port_for_preview() const {
@@ -162,7 +161,6 @@ void VisualShaderNode::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "output_port_for_preview"), "set_output_port_for_preview", "get_output_port_for_preview");
 	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "default_input_values", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_default_input_values", "get_default_input_values");
 	ADD_SIGNAL(MethodInfo("editor_refresh_request"));
-	ADD_SIGNAL(MethodInfo("show_port_preview", PropertyInfo(Variant::INT, "port_id")));
 
 	BIND_ENUM_CONSTANT(PORT_TYPE_SCALAR);
 	BIND_ENUM_CONSTANT(PORT_TYPE_SCALAR_INT);
@@ -319,13 +317,6 @@ VisualShaderNodeCustom::VisualShaderNodeCustom() {
 
 /////////////////////////////////////////////////////////
 
-void VisualShader::set_graph_node(Type p_type, int p_id, GraphNode *p_graph_node) {
-	ERR_FAIL_INDEX(p_type, TYPE_MAX);
-	Graph *g = &graph[p_type];
-	ERR_FAIL_COND(!g->nodes.has(p_id));
-	g->nodes[p_id].graph_node = p_graph_node;
-}
-
 void VisualShader::set_shader_type(Type p_type) {
 	current_type = p_type;
 }
@@ -417,11 +408,6 @@ void VisualShader::set_node_position(Type p_type, int p_id, const Vector2 &p_pos
 	Graph *g = &graph[p_type];
 	ERR_FAIL_COND(!g->nodes.has(p_id));
 	g->nodes[p_id].position = p_position;
-	if (current_type == p_type) {
-		if (g->nodes[p_id].graph_node != nullptr) {
-			g->nodes[p_id].graph_node->set_offset(p_position);
-		}
-	}
 }
 
 Vector2 VisualShader::get_node_position(Type p_type, int p_id) const {

scene/resources/visual_shader.h

@@ -33,7 +33,6 @@
 
 #include "core/string_builder.h"
 #include "scene/gui/control.h"
-#include "scene/gui/graph_edit.h"
 #include "scene/resources/shader.h"
 
 class VisualShaderNodeUniform;
@@ -76,7 +75,6 @@ private:
 		Ref<VisualShaderNode> node;
 		Vector2 position;
 		List<int> prev_connected_nodes;
-		GraphNode *graph_node;
 	};
 
 	struct Graph {
@@ -129,7 +127,6 @@ protected:
 	void _get_property_list(List<PropertyInfo> *p_list) const;
 
 public: // internal methods
-	void set_graph_node(Type p_type, int p_id, GraphNode *p_graph_node);
 	void set_shader_type(Type p_type);
 	Type get_shader_type() const;