add ability to add new variables to variable viewer

graph_node_renderer/deck_holder_renderer.gd

@@ -170,6 +170,7 @@ func add_empty_deck() -> void:
 	inst.group_enter_requested.connect(_on_deck_renderer_group_enter_requested)
 	inst.dirty_state_changed.connect(_on_deck_renderer_dirty_state_changed.bind(inst))
 	tab_container.set_current_tab(tab)
+	bottom_dock.variable_viewer.enable_new_button()
 
 ## Closes the current tab in [member tab_container]
 func close_current_tab() -> void:
@@ -187,6 +188,8 @@ func close_tab(tab: int) -> void:
 					await get_tree().process_frame
 	
 	tab_container.close_tab(tab)
+	if tab_container.get_tab_count() == 0:
+		bottom_dock.variable_viewer.disable_new_button()
 
 ## Opens [member file_dialog] with the mode [member FileDialog.FILE_MODE_SAVE_FILE]
 ## as well as getting a weakref to the active [Deck]
@@ -254,6 +257,7 @@ func open_deck_at_path(path: String) -> void:
 	recent_path = path.get_base_dir()
 	RendererPersistence.set_value(PERSISTENCE_NAMESPACE, "config", "recent_path", recent_path)
 	tab_container.set_current_tab(tab)
+	bottom_dock.variable_viewer.enable_new_button()
 
 
 ## Returns the current deck in the [member tab_container].

graph_node_renderer/textures/add_icon.svg

@@ -0,0 +1 @@
+<svg height="16" viewBox="0 0 16 16" width="16" xmlns="http://www.w3.org/2000/svg"><path d="m7 1v6h-6v2h6v6h2v-6h6v-2h-6v-6z" fill="#e0e0e0"/></svg>

graph_node_renderer/textures/add_icon.svg.import

@@ -0,0 +1,37 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://drxi5ks3mqbnk"
+path="res://.godot/imported/add_icon.svg-1a070ac229fd6d9079fc5a70a6dc355a.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://graph_node_renderer/textures/add_icon.svg"
+dest_files=["res://.godot/imported/add_icon.svg-1a070ac229fd6d9079fc5a70a6dc355a.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

graph_node_renderer/variable_viewer.gd

@@ -6,8 +6,10 @@ class_name VariableViewer
 
 const REMOVE_ICON = preload("res://graph_node_renderer/textures/remove-icon.svg")
 
+@onready var new_variable_button: Button = %NewVariableButton
 @onready var variable_tree: Tree = %VariableTree
 @onready var types_popup: PopupMenu = %TypesPopup
+
 var root: TreeItem
 var _old_name: String
 
@@ -67,9 +69,9 @@ func _ready() -> void:
 				_:
 					new_value = item.get_meta(&"value")
 			
-			item.set_meta(&"value", new_value)
+			#item.set_meta(&"value", new_value)
 			
-			if item.get_meta(&"container", -1) is int:
+			if !item.has_meta(&"container"):
 				top_field_edited.emit(_old_name, new_name, new_value)
 			else:
 				var container = item.get_meta(&"container")
@@ -83,8 +85,13 @@ func _ready() -> void:
 					var key := new_name
 					(container as Dictionary).erase(_old_name)
 					(container as Dictionary)[key] = new_value
+			
+			set_item_value(item, new_value)
+			
 	)
 	
+	variable_tree.nothing_selected.connect(variable_tree.deselect_all)
+	
 	variable_tree.button_clicked.connect(_on_variable_tree_button_clicked)
 	
 	for i in DeckType.Types.size() - 1:
@@ -92,6 +99,10 @@ func _ready() -> void:
 	
 	types_popup.id_pressed.connect(_on_types_popup_id_pressed)
 	
+	new_variable_button.pressed.connect(_on_new_variable_button_pressed)
+	
+	disable_new_button()
+
 
 func rebuild_variable_tree(data: Dictionary = {}) -> void:
 	#variable_tree.clear() # godot will raw dog a nullptr later if we clear the whole tree
@@ -102,8 +113,8 @@ func rebuild_variable_tree(data: Dictionary = {}) -> void:
 		add_item(i, data[i])
 
 
-func add_item(item_name: String, item_value: Variant, parent: TreeItem = root, container: Variant = -1, indexed: bool = false) -> TreeItem:
+func add_item(item_name: String, item_value: Variant, parent: TreeItem = root, container: Variant = null, indexed: bool = false) -> TreeItem:
-	# the container parameter is -1 instead of null because Object#get_metadata() logs an error
+	# the container parameter is -1 instead of null because Object#get_meta() logs an error
 	# if the default parameter is null
 	var item := variable_tree.create_item(parent)
 	item.set_text(0, item_name)
@@ -122,7 +133,7 @@ func add_item(item_name: String, item_value: Variant, parent: TreeItem = root, c
 	if item_value is Array:
 		for i in (item_value as Array).size():
 			add_item(str(i), item_value[i], item, item_value, true)
-	item.collapsed = true
+	#item.collapsed = true
 	item.add_button(2, REMOVE_ICON)
 
 	return item
@@ -131,7 +142,6 @@ func add_item(item_name: String, item_value: Variant, parent: TreeItem = root, c
 func set_item_value(item: TreeItem, value: Variant) -> void:
 	item.set_meta(&"value", value)
 	var type: DeckType.Types = DeckType.INVERSE_GODOT_TYPES_MAP[typeof(value)]
-
 	match type:
 		DeckType.Types.NUMERIC:
 			item.set_cell_mode(1, TreeItem.CELL_MODE_RANGE)
@@ -143,6 +153,34 @@ func set_item_value(item: TreeItem, value: Variant) -> void:
 		_:
 			item.set_text(1, str(value))
 
+	if item.has_meta(&"container"):
+		var container = item.get_meta(&"container")
+		if container is Array:
+			var index := item.get_index()
+			container[index] = value
+		else:
+			var key := item.get_text(0)
+			container[key] = value
+
+	if item.get_parent() != root:
+		refresh_item_value(item.get_parent())
+
+
+func refresh_item_value(item: TreeItem) -> void:
+	var value = item.get_meta(&"value")
+	var type: DeckType.Types = DeckType.INVERSE_GODOT_TYPES_MAP[typeof(value)]
+	match type:
+		DeckType.Types.NUMERIC:
+			item.set_cell_mode(1, TreeItem.CELL_MODE_RANGE)
+			item.set_range_config(1, -9999, 9999, 0.0001)
+			item.set_range(1, value)
+		DeckType.Types.BOOL:
+			item.set_cell_mode(1, TreeItem.CELL_MODE_CHECK)
+			item.set_checked(1, value)
+		_:
+			item.set_cell_mode(1, TreeItem.CELL_MODE_STRING)
+			item.set_text(1, str(value))
+
 
 func _on_variable_tree_button_clicked(item: TreeItem, column: int, id: int, mouse_button_index: int) -> void:
 	if mouse_button_index != MOUSE_BUTTON_LEFT:
@@ -150,17 +188,16 @@ func _on_variable_tree_button_clicked(item: TreeItem, column: int, id: int, mous
 	
 	# we only have a delete button for now, so assume it is what's clicked
 	
-	if item.get_meta(&"container", -1) is int:
+	if !item.has_meta(&"container"):
 		var key := item.get_text(0)
 		top_field_removed.emit(key)
 		item.free()
 	else:
 		var container = item.get_meta(&"container")
-		
+		var parent := item.get_parent()
 		# array
 		if item.get_meta(&"indexed", false):
 			var index := item.get_index()
-			var parent := item.get_parent()
 			(container as Array).remove_at(index)
 			item.free()
 			
@@ -173,6 +210,8 @@ func _on_variable_tree_button_clicked(item: TreeItem, column: int, id: int, mous
 			(container as Dictionary).erase(item.get_text(0))
 			item.free()
 		
+		refresh_item_value(parent)
+
 
 func _on_types_popup_id_pressed(id: int) -> void:
 	var current_item := variable_tree.get_selected()
@@ -188,16 +227,54 @@ func _on_types_popup_id_pressed(id: int) -> void:
 			# simple types that can generally be converted between each other
 			var target_type: Variant.Type = DeckType.GODOT_TYPES_MAP[id]
 			new_value = type_convert(current_item.get_meta(&"value"), target_type)
-			set_item_value(current_item, new_value)
 		DeckType.Types.ARRAY:
 			new_value = []
-			set_item_value(current_item, new_value)
+			for i in current_item.get_children():
+				i.free()
 		DeckType.Types.DICTIONARY:
 			new_value = {}
-			set_item_value(current_item, new_value)
+			for i in current_item.get_children():
+				i.free()
+	
+	set_item_value(current_item, new_value)
 
 	current_item.set_text(2, DeckType.type_str(id))
 
-	if current_item.get_meta(&"container", -1) is int:
+	if !current_item.has_meta(&"container"):
 		var field_name := current_item.get_text(0)
 		top_field_edited.emit(field_name, field_name, new_value)
+
+
+func _on_new_variable_button_pressed() -> void:
+	var selected := variable_tree.get_selected()
+	# TODO: UX impr. - if selected is part of a container, add to that container instead
+	# (but if selected is a container, prioritize adding to that)
+	if selected == null || !(selected.get_meta(&"value") is Array || selected.get_meta(&"value") is Dictionary):
+		# top field
+		var var_name := "new_variable%s" % variable_tree.get_root().get_child_count()
+		var new_item := add_item(var_name, "")
+		top_field_edited.emit(var_name, var_name, "")
+		new_item.select(0)
+	else:
+		var container = selected.get_meta(&"value")
+		if container is Dictionary:
+			var var_name := "new_key%s" % (container as Dictionary).size()
+			var new_item := add_item(var_name, "", selected, container)
+			new_item.select(0)
+			container[var_name] = ""
+		else:
+			var index := (container as Array).size()
+			(container as Array).append("")
+			var new_item := add_item(str(index), "", selected, container, true)
+			new_item.select(0)
+		refresh_item_value(selected)
+
+
+func enable_new_button() -> void:
+	new_variable_button.disabled = false
+	new_variable_button.tooltip_text = ""
+
+
+func disable_new_button() -> void:
+	new_variable_button.disabled = true
+	new_variable_button.tooltip_text = "There is no deck open, so you can not create a new variable.\nOpen a deck first."

graph_node_renderer/variable_viewer.tscn

@@ -1,11 +1,12 @@
-[gd_scene load_steps=2 format=3 uid="uid://ovf5nt5pt0oj"]
+[gd_scene load_steps=3 format=3 uid="uid://ovf5nt5pt0oj"]
 
 [ext_resource type="Script" path="res://graph_node_renderer/variable_viewer.gd" id="1_b5gmj"]
+[ext_resource type="Texture2D" uid="uid://drxi5ks3mqbnk" path="res://graph_node_renderer/textures/add_icon.svg" id="2_15lro"]
 
 [node name="VariableViewer" type="VBoxContainer"]
 anchors_preset = -1
-anchor_right = 0.182292
+anchor_right = 0.467014
-anchor_bottom = 0.123457
+anchor_bottom = 0.359568
 grow_horizontal = 2
 grow_vertical = 2
 script = ExtResource("1_b5gmj")
@@ -27,3 +28,10 @@ hide_root = true
 
 [node name="TypesPopup" type="PopupMenu" parent="."]
 unique_name_in_owner = true
+
+[node name="NewVariableButton" type="Button" parent="."]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_horizontal = 4
+text = "New"
+icon = ExtResource("2_15lro")