Adds Expression Node (#9)

Adds both the Codeblock Descriptor along with the needed update to Port.set_value to allow Callbacks.  + Adds the Expression node which utilizes the Codeblock descriptor.

Co-authored-by: Eroax <eroaxe.business@gmail.com>
Co-authored-by: Lera Elvoé <yagich@poto.cafe>
Reviewed-on: https://codeberg.org/Eroax/Re-DotDeck/pulls/9

classes/deck/nodes/expression_node.gd

@@ -0,0 +1,36 @@
+extends DeckNode
+
+var expr = Expression.new()
+
+func _init():
+	name = "Expression"
+	node_type = name.to_snake_case()
+	description = "A Node holding a block of executable GDScript code."
+	category = "general"
+
+	props_to_serialize = []
+	
+	add_output_port(DeckType.Types.ANY, "Expression Text", "codeblock")
+	
+
+
+func _value_request(from_port : int) -> Variant:
+	
+	var text = get_output_ports()[0].value_callback.call()
+	
+	var err = expr.parse(text)
+	if err != OK:
+		
+		printerr(err)
+		return null
+		
+	
+	var res = expr.execute()
+	if expr.has_execute_failed():
+		
+		printerr("Expression Execution Failed: ", text)
+		return null
+		
+	
+	return res
+	

classes/deck/port.gd

@@ -48,4 +48,7 @@ func _init(
 
 
 func set_value(v: Variant) -> void:
+	if v is Callable:
+		value = v.call()
+		return
 	value = v

graph_node_renderer/deck_node_renderer_graph_node.gd

@@ -16,44 +16,7 @@ func _ready() -> void:
 	#node.port_removed.connect(_on_node_port_removed)
 	node.ports_updated.connect(_on_node_ports_updated)
 	for port in node.get_all_ports():
-		var descriptor_split := port.descriptor.split(":")
+		update_port(port)
-		match descriptor_split[0]:
-			"button":
-				var button := Button.new()
-				add_child(button)
-				button.text = port.label
-				if port.port_type == DeckNode.PortType.OUTPUT:
-					button.pressed.connect(
-						func():
-							node.send(port.index_of_type, true)
-					)
-				elif port.port_type == DeckNode.PortType.INPUT:
-					button.pressed.connect(
-						func():
-							node._receive(port.index_of_type, true)
-					)
-			"field":
-				var line_edit := LineEdit.new()
-				add_child(line_edit)
-				if port.value:
-					line_edit.text = str(port.value)
-				line_edit.placeholder_text = port.label
-				port.value_callback = line_edit.get_text
-				line_edit.text_changed.connect(port.set_value)
-			_:
-				var label := Label.new()
-				add_child(label)
-				label.text = port.label
-
-		set_slot(
-			port.index,
-			port.port_type == DeckNode.PortType.INPUT,
-			port.type,
-			Color.WHITE,
-			port.port_type == DeckNode.PortType.OUTPUT,
-			port.type,
-			Color.WHITE,
-		)
 
 ## Connected to [signal GraphElement.position_offset_updated] and updates the
 ## [member node]s properties
@@ -72,45 +35,8 @@ func _on_node_position_updated(new_position: Dictionary) -> void:
 ## using [method GraphNode.set_slot]
 func _on_node_port_added(port_idx: int) -> void:
 	var port := node.get_all_ports()[port_idx]
+	update_port(port)
 
-	var descriptor_split := port.descriptor.split(":")
-	match descriptor_split[0]:
-		"button":
-			var button := Button.new()
-			add_child(button)
-			button.text = port.label
-			if port.port_type == DeckNode.PortType.OUTPUT:
-				button.pressed.connect(
-					func():
-						node.send(port.index_of_type, true)
-				)
-			elif port.port_type == DeckNode.PortType.INPUT:
-				button.pressed.connect(
-					func():
-						node._receive(port.index_of_type, true)
-				)
-		"field":
-			var line_edit := LineEdit.new()
-			add_child(line_edit)
-			if port.value:
-				line_edit.text = str(port.value)
-			line_edit.placeholder_text = port.label
-			port.value_callback = line_edit.get_text
-			line_edit.text_changed.connect(port.set_value)
-		_:
-			var label := Label.new()
-			add_child(label)
-			label.text = port.label
-
-	set_slot(
-		port.index,
-		port.port_type == DeckNode.PortType.INPUT,
-		port.type,
-		Color.WHITE,
-		port.port_type == DeckNode.PortType.OUTPUT,
-		port.type,
-		Color.WHITE,
-	)
 
 ## Connected to [member node]s [signal port_removed], queue_frees the [Node]
 ## used for the descriptor, as well as using [method GraphNode.set_slot] to remove the slot.
@@ -135,6 +61,10 @@ func _on_node_ports_updated() -> void:
 		c.queue_free()
 
 	for port in node.get_all_ports():
+		update_port(port)
+
+
+func update_port(port: Port) -> void:
 	var descriptor_split := port.descriptor.split(":")
 	match descriptor_split[0]:
 		"button":
@@ -146,7 +76,8 @@ func _on_node_ports_updated() -> void:
 					func():
 						node.send(port.index_of_type, true)
 				)
-				elif port.port_type == DeckNode.PortType.INPUT:
+			#elif port.port_type == DeckNode.PortType.INPUT:
+			else:
 				button.pressed.connect(
 					func():
 						node._receive(port.index_of_type, true)
@@ -159,6 +90,27 @@ func _on_node_ports_updated() -> void:
 			line_edit.placeholder_text = port.label
 			port.value_callback = line_edit.get_text
 			line_edit.text_changed.connect(port.set_value)
+		"singlechoice":
+			var box := OptionButton.new()
+			for item in descriptor_split.slice(1):
+				box.add_item(item)
+			add_child(box)
+			port.value_callback = func(): return box.get_item_text(box.get_selected_id())
+			if port.type == DeckType.Types.STRING:
+				box.item_selected.connect(
+					func(id: int):
+						port.set_value.call(box.get_item_text(box.get_selected_id()))
+				)
+		"codeblock":
+			var code_edit = CodeEdit.new()
+			add_child(code_edit)
+			if port.value:
+				code_edit.text = str(port.value)
+			code_edit.placeholder_text = port.label
+			port.value_callback = code_edit.get_text
+			code_edit.text_changed.connect(port.set_value.bind(code_edit.get_text))
+			code_edit.custom_minimum_size = Vector2(200, 100)
+			code_edit.size_flags_vertical = SIZE_EXPAND_FILL
 		_:
 			var label := Label.new()
 			add_child(label)

graph_node_renderer/deck_node_renderer_graph_node.tscn

@@ -3,8 +3,10 @@
 [ext_resource type="Script" path="res://graph_node_renderer/deck_node_renderer_graph_node.gd" id="1_pos0w"]
 
 [node name="DeckNodeRendererGraphNode" type="GraphNode"]
-offset_right = 280.0
+custom_minimum_size = Vector2(200, 0)
-offset_bottom = 217.0
+offset_right = 200.0
+offset_bottom = 55.0
+resizable = true
 title = "Deck Node"
 script = ExtResource("1_pos0w")