Created "Reset to Center" and "Zoom to Drawing" Functions

Added Toolbar buttons for the new functions
Re-Implementation for Godot 4.3

lorien/Assets/I18n/en.txt

@@ -32,6 +32,8 @@ TOOLBAR_TOOLTIP_BRUSH_COLOR     Brush Color
 TOOLBAR_TOOLTIP_BRUSH_SIZE      Brush Size
 TOOLBAR_TOOLTIP_CANVAS_COLOR    Canvas Color
 TOOLBAR_FULLSCREEN_TOGGLE       Toggle fullscreen
+TOOLBAR_TOOLTIP_ZOOM_TO_DRAWING Zoom to Drawing
+TOOLBAR_TOOLTIP_RESET_TO_CENTER Reset Camera to Center
 
 # -----------------------------------------------------------------------------
 # Color Palette Picker
@@ -160,6 +162,8 @@ ACTION_toggle_zen_mode              Toggle Zen Mode
 ACTION_toggle_player                Toggle Easteregg
 ACTION_toggle_fullscreen            Toggle Fullscreen
 ACTION_canvas_pan_key               Pan Key
+ACTION_canvas_reset_to_center       Reset to center
+ACTION_canvas_zoom_to_drawing       Zoom to drawing
 
 # -----------------------------------------------------------------------------
 # Kebindings dialog messages

lorien/Assets/Icons/reset_to_center.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dcxctfytoiq28"
+path="res://.godot/imported/reset_to_center.png-f0c4ce74002102472b04bab039768552.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://Assets/Icons/reset_to_center.png"
+dest_files=["res://.godot/imported/reset_to_center.png-f0c4ce74002102472b04bab039768552.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

lorien/Assets/Icons/zoom_to_drawing.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dug7uaervy2ik"
+path="res://.godot/imported/zoom_to_drawing.png-0adbb90ff26abb26c463d52713a19708.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://Assets/Icons/zoom_to_drawing.png"
+dest_files=["res://.godot/imported/zoom_to_drawing.png-0adbb90ff26abb26c463d52713a19708.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

lorien/InfiniteCanvas/InfiniteCanvas.gd

@@ -104,6 +104,17 @@ func center_to_mouse() -> void:
 		var screen_space_cursor_pos := _viewport.get_mouse_position()
 		_camera.do_center(screen_space_cursor_pos)
 
+# -------------------------------------------------------------------------------------------------
+func reset_to_center():
+	if _active_tool != null:
+		_camera.reset_to_center()
+
+# -------------------------------------------------------------------------------------------------
+func zoom_to_drawing():
+	if _active_tool != null:
+		_camera.zoom_to_drawing()
+
+
 # -------------------------------------------------------------------------------------------------
 func use_tool(tool_type: int) -> void:
 	var prev_tool := _active_tool

lorien/InfiniteCanvas/PanZoomCamera.gd

@@ -17,6 +17,8 @@ var _zoom_active := false
 var _current_zoom_level := 1.0
 var _start_mouse_pos := Vector2(0.0, 0.0)
 
+@onready var _topbar : VBoxContainer = get_node("/root/Main/Topbar")
+@onready var _statusbar : Panel = get_node("/root/Main/Statusbar")
 # -------------------------------------------------------------------------------------------------
 func set_zoom_level(zoom_level: float) -> void:
 	_current_zoom_level = _to_nearest_zoom_step(zoom_level)
@@ -33,6 +35,67 @@ func do_center(screen_space_center_point: Vector2) -> void:
 	get_viewport().warp_mouse(screen_space_center)
 	_do_pan(delta)
 
+# -------------------------------------------------------------------------------------------------
+func reset_to_center():
+	offset = Vector2(0.0,0.0)
+	emit_signal("position_changed", offset)
+	_zoom_canvas(1.0, Vector2(0.0,0.0))
+
+# -------------------------------------------------------------------------------------------------
+func zoom_to_drawing():
+	var max_dim : Vector2 = BrushStroke.MIN_VECTOR2
+	var min_dim : Vector2 = BrushStroke.MAX_VECTOR2
+	var project: Project = ProjectManager.get_active_project()
+	var zoom_steps_x : int = 0
+	var zoom_steps_y : int = 0
+	var zoom_x : float = 1
+	var zoom_y :float = 1
+	var final_zoom : float
+	var zoomed_viewport_size : Vector2 = get_viewport().size
+
+	print(project.strokes.size())
+	if project.strokes.is_empty():
+		reset_to_center()
+	else:
+		#subtract UI size from viewport if it is visible
+		if _topbar.visible && _statusbar.visible:
+			zoomed_viewport_size.y = zoomed_viewport_size.y-(_topbar.get_rect().size.y+_statusbar.get_rect().size.y)
+		for stroke in project.strokes:
+			min_dim.x = min(min_dim.x, stroke.top_left_pos.x)
+			min_dim.y = min(min_dim.y, stroke.top_left_pos.y)
+			max_dim.x = max(max_dim.x, stroke.bottom_right_pos.x)
+			max_dim.y = max(max_dim.y, stroke.bottom_right_pos.y)
+
+		var diff_max_dim = Vector2(abs(max_dim.x-min_dim.x), abs(max_dim.y-min_dim.y))
+
+		while diff_max_dim.x > zoomed_viewport_size.x:
+			zoomed_viewport_size.x = zoomed_viewport_size.x * 1.1
+			zoom_x = zoom_x/1.1
+			zoom_steps_x = zoom_steps_x + 1
+
+		while diff_max_dim.y > zoomed_viewport_size.y:
+			zoomed_viewport_size.y = zoomed_viewport_size.y * 1.1
+			zoom_y = zoom_y/1.1
+			zoom_steps_y = zoom_steps_y +1
+
+		if zoom_steps_x > zoom_steps_y:
+			final_zoom = zoom_x
+		else:
+			final_zoom = zoom_y
+
+		var anchor = Vector2(min_dim.x+get_viewport().size.x/2, min_dim.y+get_viewport().size.y/2)
+
+		final_zoom = final_zoom / 1.1
+		var center_offset : Vector2
+		center_offset.x = ((1/final_zoom)*get_viewport().size.x)-diff_max_dim.x
+		center_offset.y = ((1/final_zoom)*(get_viewport().size.y))-diff_max_dim.y
+
+		_zoom_canvas(final_zoom, anchor)
+		offset = min_dim
+		offset.y = offset.y-((center_offset.y)/2)
+		offset.x = offset.x-(center_offset.x/2)
+		emit_signal("position_changed", offset)
+
 # -------------------------------------------------------------------------------------------------
 func tool_event(event: InputEvent) -> void:
 	if _is_input_enabled:

lorien/Main.gd

@@ -61,6 +61,9 @@ func _ready() -> void:
 	_toolbar.save_project.connect(_on_save_project)
 	_toolbar.brush_size_changed.connect(_on_brush_size_changed)
 	_toolbar.tool_changed.connect(_on_tool_changed)
+	_toolbar.reset_to_center_action.connect(_on_reset_to_center_action)
+	_toolbar.zoom_to_drawing_action.connect(_on_zoom_to_drawing_action)
+
 
 	_menubar.create_new_project.connect(_on_create_new_project)
 	_menubar.project_selected.connect(_on_project_selected)
@@ -171,6 +174,10 @@ func _unhandled_input(event: InputEvent) -> void:
 				_toggle_zen_mode()
 			elif Utils.event_pressed_bug_workaround("toggle_fullscreen", event):
 				_toggle_fullscreen()
+			elif Utils.event_pressed_bug_workaround("canvas_reset_to_center", event):
+				_on_reset_to_center_action()
+			elif Utils.event_pressed_bug_workaround("canvas_zoom_to_drawing", event):
+				_on_zoom_to_drawing_action()
 
 # -------------------------------------------------------------------------------------------------
 func _toggle_player() -> void:
@@ -574,3 +581,12 @@ func _get_general_ui_scale() -> float:
 	elif smallest_dimension >= 1700:
 		return Config.DEFAULT_UI_SCALE * 1.5
 	return Config.DEFAULT_UI_SCALE
+
+# --------------------------------------------------------------------------------------------------
+func _on_reset_to_center_action() -> void:
+	_canvas.reset_to_center()
+
+# --------------------------------------------------------------------------------------------------
+func _on_zoom_to_drawing_action() -> void:
+	_canvas.zoom_to_drawing()
+

lorien/UI/Toolbar.gd

@@ -10,6 +10,8 @@ signal redo_action
 signal toggle_brush_color_picker
 signal brush_size_changed(size: float)
 signal tool_changed(t: Types.Tool)
+signal reset_to_center_action
+signal zoom_to_drawing_action
 
 # -------------------------------------------------------------------------------------------------
 const BUTTON_HOVER_COLOR = Color("50ffd6")
@@ -25,6 +27,8 @@ const BUTTON_NORMAL_COLOR = Color.WHITE
 @onready var _undo_button: FlatTextureButton = $Console/Left/UndoButton
 @onready var _redo_button: FlatTextureButton = $Console/Left/RedoButton
 @onready var _color_button: Button = $Console/Left/ColorButton
+@onready var _reset_to_center_button: FlatTextureButton = $Console/Left/ResetToCenterButton
+@onready var _zoom_to_drawing_button: FlatTextureButton = $Console/Left/ZoomToDrawingButton
 @onready var _brush_size_label: Label = $Console/Left/BrushSizeLabel
 @onready var _brush_size_slider: HSlider = $Console/Left/BrushSizeSlider
 @onready var _tool_btn_brush: FlatTextureButton = $Console/Left/BrushToolButton
@@ -58,6 +62,8 @@ func _ready() -> void:
 	_open_button.pressed.connect(_on_open_project_pressed)
 	_save_button.pressed.connect(func() -> void: save_project.emit())
 	_color_button.pressed.connect(func() -> void: toggle_brush_color_picker.emit())
+	_reset_to_center_button.pressed.connect(func() -> void: reset_to_center_action.emit())
+	_zoom_to_drawing_button.pressed.connect(func() -> void: zoom_to_drawing_action.emit())
 	_brush_size_slider.value_changed.connect(_on_brush_size_changed)
 	_tool_btn_brush.pressed.connect(_on_brush_tool_pressed)
 	_tool_btn_rectangle.pressed.connect(_on_rectangle_tool_pressed)

lorien/UI/Toolbar.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=19 format=3 uid="uid://c0ral10lvpo7f"]
+[gd_scene load_steps=21 format=3 uid="uid://c0ral10lvpo7f"]
 
 [ext_resource type="Texture2D" uid="uid://c4kv3i7fmom58" path="res://Assets/Icons/save_file.png" id="1"]
 [ext_resource type="Texture2D" uid="uid://dxi6gc6npiskq" path="res://Assets/Icons/open_file.png" id="2"]
@@ -12,6 +12,8 @@
 [ext_resource type="Texture2D" uid="uid://bn1qdw0v30np0" path="res://Assets/Icons/line_tool.png" id="11"]
 [ext_resource type="Script" path="res://UI/Components/FlatTextureButton.gd" id="13"]
 [ext_resource type="Theme" uid="uid://u5qnpgxqykiv" path="res://UI/Themes/theme_dark.tres" id="15"]
+[ext_resource type="Texture2D" uid="uid://dug7uaervy2ik" path="res://Assets/Icons/zoom_to_drawing.png" id="15_b47ao"]
+[ext_resource type="Texture2D" uid="uid://dcxctfytoiq28" path="res://Assets/Icons/reset_to_center.png" id="15_r3wm2"]
 [ext_resource type="Texture2D" uid="uid://ddxis8f7tvg66" path="res://Assets/Icons/selection_tool.png" id="16"]
 [ext_resource type="Texture2D" uid="uid://0qicbkag5jd3" path="res://Assets/Icons/circle_tool.png" id="19"]
 
@@ -219,6 +221,32 @@ value = 5.0
 layout_mode = 2
 text = "12"
 
+[node name="VSeparator5" type="VSeparator" parent="Console/Left"]
+layout_mode = 2
+theme_override_styles/separator = SubResource("3")
+
+[node name="ResetToCenterButton" type="TextureButton" parent="Console/Left"]
+layout_mode = 2
+size_flags_horizontal = 4
+size_flags_vertical = 4
+tooltip_text = "TOOLBAR_TOOLTIP_RESET_TO_CENTER"
+toggle_mode = true
+texture_normal = ExtResource("15_r3wm2")
+script = ExtResource("13")
+hover_tint = Color(0.662745, 0.945098, 0.87451, 1)
+pressed_tint = Color(0.572549, 1, 0.894118, 1)
+
+[node name="ZoomToDrawingButton" type="TextureButton" parent="Console/Left"]
+layout_mode = 2
+size_flags_horizontal = 4
+size_flags_vertical = 4
+tooltip_text = "TOOLBAR_TOOLTIP_ZOOM_TO_DRAWING"
+toggle_mode = true
+texture_normal = ExtResource("15_b47ao")
+script = ExtResource("13")
+hover_tint = Color(0.662745, 0.945098, 0.87451, 1)
+pressed_tint = Color(0.572549, 1, 0.894118, 1)
+
 [node name="Right" type="HBoxContainer" parent="Console"]
 layout_mode = 2
 size_flags_horizontal = 3

lorien/project.godot

@@ -242,6 +242,16 @@ canvas_pan_key={
 "events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":32,"physical_keycode":0,"key_label":0,"unicode":32,"location":0,"echo":false,"script":null)
 ]
 }
+canvas_reset_to_center={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":0,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
+canvas_zoom_to_drawing={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":0,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
 
 [locale]