Added collapse/expand blocks to hide advanced settings.

This commit modifies the display_template parsing of .tres block definitions, adding a separator using the | character. All labels and parameters after this separator are added to a new CollapsableSettings container that has collapse/expand buttons, with the goal of hiding advanced settings from users.
To do this, a new hidden key with a boolean value is added to the results of the parse_display_template method. Additionally, CollapsableSettings is implemented using an HBoxContainer and changing the visibility of child nodes when changing collapse/expand states.
Fixes #288.

addons/block_code/blocks/sounds/play_sound.tres

@@ -10,7 +10,7 @@ description = "Play the audio stream with volume and pitch"
 category = "Sounds"
 type = 2
 variant_type = 0
-display_template = "play the sound {name: STRING} with volume {db: FLOAT} dB and pitch scale {pitch: FLOAT}"
+display_template = "play the sound {name: STRING} | with volume {db: FLOAT} dB and pitch scale {pitch: FLOAT}"
 code_template = "var __sound_node = get_node({name})
 __sound_node.volume_db = {db}
 __sound_node.pitch_scale = {pitch}

addons/block_code/code_generation/block_definition.gd

@@ -92,19 +92,31 @@ func get_output_parameters() -> Dictionary:
 
 static func parse_display_template(template_string: String):
 	var items: Array[Dictionary]
-	for regex_match in _display_template_regex.search_all(template_string):
-		if regex_match.names.has("label"):
-			var label_string := regex_match.get_string("label")
-			items.append({"label": label_string})
-		elif regex_match.names.has("in_parameter"):
-			var parameter_string := regex_match.get_string("in_parameter")
-			items.append({"in_parameter": _parse_parameter_format(parameter_string)})
-		elif regex_match.names.has("out_parameter"):
-			var parameter_string := regex_match.get_string("out_parameter")
-			items.append({"out_parameter": _parse_parameter_format(parameter_string)})
-		elif regex_match.names.has("const_parameter"):
-			var parameter_string := regex_match.get_string("const_parameter")
-			items.append({"const_parameter": _parse_parameter_format(parameter_string)})
+	# Parse the template string.
+	var parse_template_string = func(template_string: String, hidden: bool):
+		for regex_match in _display_template_regex.search_all(template_string):
+			if regex_match.names.has("label"):
+				var label_string := regex_match.get_string("label")
+				items.append({"label": label_string, "hidden": hidden})
+			elif regex_match.names.has("in_parameter"):
+				var parameter_string := regex_match.get_string("in_parameter")
+				items.append({"in_parameter": _parse_parameter_format(parameter_string), "hidden": hidden})
+			elif regex_match.names.has("out_parameter"):
+				var parameter_string := regex_match.get_string("out_parameter")
+				items.append({"out_parameter": _parse_parameter_format(parameter_string), "hidden": hidden})
+			elif regex_match.names.has("const_parameter"):
+				var parameter_string := regex_match.get_string("const_parameter")
+				items.append({"const_parameter": _parse_parameter_format(parameter_string), "hidden": hidden})
+	# This splits in two the template string in the first "|" character
+	# to separate normal and hidden parameters.
+	var sep: int = template_string.find("|")
+	if sep == -1:
+		parse_template_string.call(template_string, false)
+	else:
+		var template_string_normal := template_string.substr(0, sep).trim_suffix(" ")
+		var template_string_advanced := template_string.substr(sep + 1)
+		parse_template_string.call(template_string_normal, false)
+		parse_template_string.call(template_string_advanced, true)
 	return items
 
 

addons/block_code/ui/blocks/utilities/template_editor/collapsable_settings.gd

@@ -0,0 +1,34 @@
+@tool
+class_name CollapsableSettings
+extends HBoxContainer
+
+@onready var _expand_button: Button = %ExpandSettingsButton
+@onready var _collapse_button: Button = %CollapseSettingsButton
+var _collapsed := false
+
+
+func _ready() -> void:
+	_collapse()
+	move_child(_expand_button, 0)
+	move_child(_collapse_button, -1)
+	_expand_button.connect("button_up", _expand)
+	_collapse_button.connect("button_up", _collapse)
+
+
+func _expand() -> void:
+	if not _collapsed:
+		return
+	for child in get_children(true):
+		child.visible = true
+	_expand_button.visible = false
+	_collapse_button.visible = true
+	_collapsed = false
+
+
+func _collapse() -> void:
+	if _collapsed:
+		return
+	for child in get_children(true):
+		child.visible = false
+	_expand_button.visible = true
+	_collapsed = true

addons/block_code/ui/blocks/utilities/template_editor/collapsable_settings.tscn

@@ -0,0 +1,25 @@
+[gd_scene load_steps=4 format=3 uid="uid://1xfpd777g8pf"]
+
+[ext_resource type="Script" path="res://addons/block_code/ui/blocks/utilities/template_editor/collapsable_settings.gd" id="1_f0ssn"]
+[ext_resource type="Texture2D" uid="uid://br7yvjjtbuups" path="res://addons/block_code/ui/blocks/utilities/template_editor/plus.png" id="2_8s057"]
+[ext_resource type="Texture2D" uid="uid://di3ona3fudjkx" path="res://addons/block_code/ui/blocks/utilities/template_editor/minus.png" id="3_6qcv3"]
+
+[node name="CollapsableSettings" type="HBoxContainer"]
+offset_right = 36.0
+offset_bottom = 31.0
+script = ExtResource("1_f0ssn")
+
+[node name="ExpandSettingsButton" type="Button" parent="."]
+unique_name_in_owner = true
+layout_mode = 2
+icon = ExtResource("2_8s057")
+flat = true
+icon_alignment = 1
+
+[node name="CollapseSettingsButton" type="Button" parent="."]
+unique_name_in_owner = true
+custom_minimum_size = Vector2(20, 20)
+layout_mode = 2
+icon = ExtResource("3_6qcv3")
+flat = true
+icon_alignment = 1

addons/block_code/ui/blocks/utilities/template_editor/minus.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://di3ona3fudjkx"
+path="res://.godot/imported/minus.png-7cbe293178ea19d9e5fbc8ba50c3a01b.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://addons/block_code/ui/blocks/utilities/template_editor/minus.png"
+dest_files=["res://.godot/imported/minus.png-7cbe293178ea19d9e5fbc8ba50c3a01b.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

addons/block_code/ui/blocks/utilities/template_editor/plus.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://br7yvjjtbuups"
+path="res://.godot/imported/plus.png-415014510d01c9db50069dbfc9e6ab6f.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://addons/block_code/ui/blocks/utilities/template_editor/plus.png"
+dest_files=["res://.godot/imported/plus.png-415014510d01c9db50069dbfc9e6ab6f.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

addons/block_code/ui/blocks/utilities/template_editor/template_editor.gd

@@ -12,6 +12,7 @@ const ParameterInput = preload("res://addons/block_code/ui/blocks/utilities/para
 const ParameterInputScene = preload("res://addons/block_code/ui/blocks/utilities/parameter_input/parameter_input.tscn")
 const ParameterOutput = preload("res://addons/block_code/ui/blocks/utilities/parameter_output/parameter_output.gd")
 const ParameterOutputScene = preload("res://addons/block_code/ui/blocks/utilities/parameter_output/parameter_output.tscn")
+const CollapsableSettingsScene = preload("res://addons/block_code/ui/blocks/utilities/template_editor/collapsable_settings.tscn")
 
 ## A string describing a block's display format. For example:
 ## [br]
@@ -86,27 +87,37 @@ func _update_from_format_string():
 		_container.remove_child(child)
 		child.queue_free()
 
-	var match_id = 0
+	var match_id: int = 0
+	var is_collapsable := false
+	var collapsable: CollapsableSettings = CollapsableSettingsScene.instantiate()
 	for item in BlockDefinition.parse_display_template(format_string):
+		var hidden: bool = item.get("hidden", false)
+		var container: Container = collapsable if hidden else _container
+		if hidden:
+			is_collapsable = true
 		if item.has("label"):
-			_append_label(item.get("label"))
+			_append_label(container, item.get("label"))
 		elif item.has("in_parameter"):
-			_append_input_parameter(item.get("in_parameter"), match_id)
+			_append_input_parameter(container, item.get("in_parameter"), match_id)
 		elif item.has("out_parameter"):
-			_append_output_parameter(item.get("out_parameter"), match_id)
+			_append_output_parameter(container, item.get("out_parameter"), match_id)
 		elif item.has("const_parameter"):
-			_append_const_parameter(item.get("const_parameter"), match_id)
+			_append_const_parameter(container, item.get("const_parameter"), match_id)
 		match_id += 1
+	if is_collapsable:
+		_container.add_child(collapsable)
+	else:
+		collapsable.queue_free()
 
 
-func _append_label(label_format: String):
+func _append_label(container: Container, label_format: String):
 	var label = Label.new()
 	label.add_theme_color_override("font_color", Color.WHITE)
 	label.text = label_format.strip_edges()
-	_container.add_child(label)
+	container.add_child(label)
 
 
-func _append_input_parameter(parameter: Dictionary, id: int) -> ParameterInput:
+func _append_input_parameter(container: Container, parameter: Dictionary, id: int) -> ParameterInput:
 	var default_value = parameter_defaults.get(parameter["name"])
 
 	var parameter_input: ParameterInput = ParameterInputScene.instantiate()
@@ -125,26 +136,26 @@ func _append_input_parameter(parameter: Dictionary, id: int) -> ParameterInput:
 
 	parameter_input.modified.connect(func(): modified.emit())
 
-	_container.add_child(parameter_input)
+	container.add_child(parameter_input)
 	_parameter_inputs_by_name[parameter["name"]] = parameter_input
 
 	return parameter_input
 
 
-func _append_output_parameter(parameter: Dictionary, id: int):
+func _append_output_parameter(container: Container, parameter: Dictionary, id: int):
 	var parameter_output: ParameterOutput
 
 	parameter_output = ParameterOutputScene.instantiate()
 	parameter_output.name = "ParameterOutput%d" % id
 	parameter_output.block = parent_block
 	parameter_output.parameter_name = parameter["name"]
-	_container.add_child(parameter_output)
+	container.add_child(parameter_output)
 
 
-func _append_const_parameter(parameter: Dictionary, id: int):
+func _append_const_parameter(container: Container, parameter: Dictionary, id: int):
 	# const_parameter is a kind of in_parameter with default value, but never
 	# changes value.
-	var parameter_const := _append_input_parameter(parameter, id)
+	var parameter_const := _append_input_parameter(container, parameter, id)
 	parameter_const.visible = false