add a basic variable viewer

graph_node_renderer/bottom_dock.gd

@@ -4,8 +4,14 @@
 extends TabContainer
 class_name BottomDock
 
-@export var tab_names := ["Console"]
+@export var tab_names := ["Console", "Variables"]
+@onready var variable_viewer: VariableViewer = %VariableViewer
+
 
 func _ready() -> void:
 	for i in get_child_count():
 		set_tab_title(i, tab_names[i])
+
+
+func rebuild_variable_tree(data: Dictionary) -> void:
+	variable_viewer.rebuild_variable_tree(data)

graph_node_renderer/bottom_dock.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=3 format=3 uid="uid://dayri1ejk20bc"]
+[gd_scene load_steps=4 format=3 uid="uid://dayri1ejk20bc"]
 
 [ext_resource type="PackedScene" uid="uid://duvh3r740w2p5" path="res://graph_node_renderer/logger_renderer.tscn" id="1_6yuco"]
 [ext_resource type="Script" path="res://graph_node_renderer/bottom_dock.gd" id="1_mu1hf"]
+[ext_resource type="PackedScene" uid="uid://ovf5nt5pt0oj" path="res://graph_node_renderer/variable_viewer.tscn" id="3_vlkh8"]
 
 [node name="BottomDock" type="TabContainer"]
 offset_right = 122.0
@@ -11,3 +12,8 @@ script = ExtResource("1_mu1hf")
 [node name="LoggerRenderer" parent="." instance=ExtResource("1_6yuco")]
 unique_name_in_owner = true
 layout_mode = 2
+
+[node name="VariableViewer" parent="." instance=ExtResource("3_vlkh8")]
+unique_name_in_owner = true
+visible = false
+layout_mode = 2

graph_node_renderer/deck_holder_renderer.gd

@@ -65,13 +65,14 @@ var _deck_to_save: WeakRef
 
 @onready var obs_setup_dialog := $OBSWebsocketSetupDialog as OBSWebsocketSetupDialog
 @onready var twitch_setup_dialog := $Twitch_Setup_Dialog as TwitchSetupDialog
-@onready var bottom_dock: TabContainer = %BottomDock
+@onready var bottom_dock: BottomDock = %BottomDock
 
 
 func _ready() -> void:
 	get_tree().auto_accept_quit = false
 	tab_container.add_button_pressed.connect(add_empty_deck)
 	tab_container.tab_changed.connect(_on_tab_container_tab_changed)
+	tab_container.tab_about_to_change.connect(_on_tab_container_tab_about_to_change)
 	RendererPersistence.init_namespace(PERSISTENCE_NAMESPACE)
 	
 	var embed_subwindows: bool = RendererPersistence.get_or_create(PERSISTENCE_NAMESPACE, "config", "embed_subwindows", true)
@@ -115,10 +116,19 @@ func _ready() -> void:
 	file_popup_menu.set_item_shortcut(FileMenuId.CLOSE, close_deck_shortcut)
 
 
+func _on_tab_container_tab_about_to_change(previous_tab: int) -> void:
+	var deck := get_deck_at_tab(previous_tab)
+	if deck.variables_updated.is_connected(bottom_dock.rebuild_variable_tree):
+		deck.variables_updated.disconnect(bottom_dock.rebuild_variable_tree)
+
+
 func _on_tab_container_tab_changed(tab: int) -> void:
 	var is_group = tab_container.get_tab_metadata(tab, "group", false)
 	file_popup_menu.set_item_disabled(FileMenuId.SAVE, is_group)
 	file_popup_menu.set_item_disabled(FileMenuId.SAVE_AS, is_group)
+	bottom_dock.rebuild_variable_tree(get_active_deck().variable_stack)
+	var deck := get_active_deck()
+	deck.variables_updated.connect(bottom_dock.rebuild_variable_tree.bind(deck.variable_stack))
 
 
 ## Called when the File button in the [MenuBar] is pressed with the [param id]
@@ -236,12 +246,18 @@ func open_deck_at_path(path: String) -> void:
 	tab_container.set_current_tab(tab)
 
 
-## Gets the currently active [Deck] from [member tab_container]
+## Returns the current deck in the [member tab_container].
 func get_active_deck() -> Deck:
+	return get_deck_at_tab(tab_container.get_current_tab())
+
+
+## Returns the deck at [param tab] in the [member tab_container].
+func get_deck_at_tab(tab: int) -> Deck:
 	if tab_container.is_empty():
 		return null
+	
+	return (tab_container.get_content(tab) as DeckRendererGraphEdit).deck
 
-	return (tab_container.get_content(tab_container.get_current_tab()) as DeckRendererGraphEdit).deck
 
 ## Saves the active [Deck] in [member tab_container]
 func save_active_deck() -> void:

graph_node_renderer/tab_container_custom.gd

@@ -21,6 +21,8 @@ class_name TabContainerCustom
 signal add_button_pressed
 ## Emitted when the current tab in [member tab_bar] is changed.
 signal tab_changed(tab: int)
+## Emitted just before the current tab in [member tab_bar] is changed.s
+signal tab_about_to_change(previous_tab: int)
 ## Emitted when a tab in [member tab_bar] has been closed.
 ## See [signal TabBar.tab_close_requested]
 signal tab_closed(tab: int)
@@ -41,6 +43,8 @@ func _ready() -> void:
 			if _previous_active_tab == tab:
 				return
 
+			tab_about_to_change.emit(_previous_active_tab)
+
 			if _previous_active_tab > -1:
 				content_container.get_child(_previous_active_tab).visible = false
 			content_container.get_child(tab).visible = true

graph_node_renderer/variable_viewer.gd

@@ -0,0 +1,32 @@
+# (c) 2023-present Eroax
+# (c) 2023-present Yagich
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+extends VBoxContainer
+class_name VariableViewer
+
+@onready var variable_tree: Tree = %VariableTree
+var root: TreeItem
+
+func _ready() -> void:
+	variable_tree.set_column_title(0, "Name")
+	variable_tree.set_column_title(1, "Value")
+	variable_tree.set_column_title(2, "Type")
+	variable_tree.set_column_expand(1, true)
+	variable_tree.set_column_expand_ratio(0, 15)
+	variable_tree.set_column_expand_ratio(1, 70)
+	variable_tree.set_column_expand_ratio(2, 15)
+	root = variable_tree.create_item()
+	rebuild_variable_tree()
+
+
+func rebuild_variable_tree(data: Dictionary = {}) -> void:
+	#variable_tree.clear() # godot will raw dog a nullptr later if we clear the whole tree
+	for i in root.get_children():
+		i.free()
+	
+	for i in data:
+		var item := variable_tree.create_item(root)
+		item.set_text(0, i)
+		item.set_text(1, data[i])
+		var type: DeckType.Types = DeckType.INVERSE_GODOT_TYPES_MAP[typeof(data[i])]
+		item.set_text(2, DeckType.type_str(type))

graph_node_renderer/variable_viewer.tscn

@@ -0,0 +1,26 @@
+[gd_scene load_steps=2 format=3 uid="uid://ovf5nt5pt0oj"]
+
+[ext_resource type="Script" path="res://graph_node_renderer/variable_viewer.gd" id="1_b5gmj"]
+
+[node name="VariableViewer" type="VBoxContainer"]
+anchors_preset = -1
+anchor_right = 0.182292
+anchor_bottom = 0.123457
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_b5gmj")
+metadata/_edit_use_anchors_ = true
+
+[node name="Label" type="Label" parent="."]
+layout_mode = 2
+text = "Deck Variables"
+
+[node name="VariableTree" type="Tree" parent="."]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_vertical = 3
+columns = 3
+column_titles_visible = true
+allow_search = false
+hide_folding = true
+hide_root = true