Almost made selection rotation with gizmos functional

Not exposed yet

src/Autoload/DrawingAlgos.gd

@@ -425,6 +425,8 @@ func fake_rotsprite(sprite: Image, angle: float, pivot: Vector2) -> void:
 
 
 func nn_rotate(sprite: Image, angle: float, pivot: Vector2) -> void:
+	if is_zero_approx(angle):
+		return
 	var aux := Image.new()
 	aux.copy_from(sprite)
 	var ox: int

src/Tools/BaseSelectionTool.gd

@@ -252,6 +252,8 @@ func _on_Size_value_changed(value: Vector2i) -> void:
 
 	if timer.is_stopped():
 		undo_data = selection_node.get_undo_data(false)
+		if not selection_node.is_moving_content:
+			selection_node.original_bitmap.copy_from(Global.current_project.selection_map)
 	timer.start()
 	selection_node.big_bounding_rectangle.size = value
 	selection_node.resize_selection()
@@ -262,5 +264,5 @@ func _on_Size_ratio_toggled(button_pressed: bool) -> void:
 
 
 func _on_Timer_timeout() -> void:
-	if !selection_node.is_moving_content:
+	if not selection_node.is_moving_content:
 		selection_node.commit_undo("Move Selection", undo_data)

src/UI/Canvas/Selection.gd

@@ -13,6 +13,11 @@ var is_pasting := false
 var big_bounding_rectangle := Rect2i():
 	set(value):
 		big_bounding_rectangle = value
+		if value.size == Vector2i(0, 0):
+			set_process_input(false)
+			Global.can_draw = true
+		else:
+			set_process_input(true)
 		for slot in Tools._slots.values():
 			if slot.tool_node is BaseSelectionTool:
 				slot.tool_node.set_spinbox_values()
@@ -34,7 +39,8 @@ var preview_image_texture := ImageTexture.new()
 var undo_data: Dictionary
 var gizmos: Array[Gizmo] = []
 var dragged_gizmo: Gizmo = null
-var prev_angle := 0
+var angle := 0.0
+var content_pivot := Vector2.ZERO
 var mouse_pos_on_gizmo_drag := Vector2.ZERO
 var resize_keep_ratio := false
 
@@ -53,24 +59,24 @@ class Gizmo:
 		type = _type
 		direction = _direction
 
-	func get_cursor() -> Control.CursorShape:
-		var cursor := Control.CURSOR_MOVE
+	func get_cursor() -> DisplayServer.CursorShape:
+		var cursor := DisplayServer.CURSOR_MOVE
 		if direction == Vector2i.ZERO:
-			return Control.CURSOR_POINTING_HAND
+			return DisplayServer.CURSOR_POINTING_HAND
 		elif direction == Vector2i(-1, -1) or direction == Vector2i(1, 1):  # Top left or bottom right
 			if Global.mirror_view:
-				cursor = Control.CURSOR_BDIAGSIZE
+				cursor = DisplayServer.CURSOR_BDIAGSIZE
 			else:
-				cursor = Control.CURSOR_FDIAGSIZE
+				cursor = DisplayServer.CURSOR_FDIAGSIZE
 		elif direction == Vector2i(1, -1) or direction == Vector2i(-1, 1):  # Top right or bottom left
 			if Global.mirror_view:
-				cursor = Control.CURSOR_FDIAGSIZE
+				cursor = DisplayServer.CURSOR_FDIAGSIZE
 			else:
-				cursor = Control.CURSOR_BDIAGSIZE
+				cursor = DisplayServer.CURSOR_BDIAGSIZE
 		elif direction == Vector2i(0, -1) or direction == Vector2i(0, 1):  # Center top or center bottom
-			cursor = Control.CURSOR_VSIZE
+			cursor = DisplayServer.CURSOR_VSIZE
 		elif direction == Vector2i(-1, 0) or direction == Vector2i(1, 0):  # Center left or center right
-			cursor = Control.CURSOR_HSIZE
+			cursor = DisplayServer.CURSOR_HSIZE
 		return cursor
 
 
@@ -84,12 +90,11 @@ func _ready() -> void:
 	gizmos.append(Gizmo.new(Gizmo.Type.SCALE, Vector2i(0, 1)))  # Center bottom
 	gizmos.append(Gizmo.new(Gizmo.Type.SCALE, Vector2i(-1, 1)))  # Bottom left
 	gizmos.append(Gizmo.new(Gizmo.Type.SCALE, Vector2i(-1, 0)))  # Center left
-
-
 	#gizmos.append(Gizmo.new(Gizmo.Type.ROTATE)) # Rotation gizmo (temp)
 
 
 func _input(event: InputEvent) -> void:
+	var project := Global.current_project
 	image_current_pixel = canvas.current_pixel
 	if Global.mirror_view:
 		image_current_pixel.x = Global.current_project.size.x - image_current_pixel.x
@@ -99,7 +104,6 @@ func _input(event: InputEvent) -> void:
 		elif Input.is_action_just_pressed("transformation_cancel"):
 			transform_content_cancel()
 
-	var project := Global.current_project
 	if not project.layers[project.current_layer].can_layer_get_drawn():
 		return
 	if event is InputEventKey:
@@ -123,17 +127,14 @@ func _input(event: InputEvent) -> void:
 				if Input.is_action_pressed("transform_move_selection_only"):
 					transform_content_confirm()
 				if not is_moving_content:
+					original_bitmap.copy_from(Global.current_project.selection_map)
+					original_big_bounding_rectangle = big_bounding_rectangle
 					if Input.is_action_pressed("transform_move_selection_only"):
 						undo_data = get_undo_data(false)
 						temp_rect = big_bounding_rectangle
 					else:
 						transform_content_start()
 					project.selection_offset = Vector2.ZERO
-					if dragged_gizmo.type == Gizmo.Type.ROTATE:
-						var img_size := maxi(
-							original_preview_image.get_width(), original_preview_image.get_height()
-						)
-						original_preview_image.crop(img_size, img_size)
 				else:
 					var prev_temp_rect := temp_rect
 					dragged_gizmo.direction.x *= signi(temp_rect.size.x)
@@ -157,7 +158,9 @@ func _input(event: InputEvent) -> void:
 			Global.can_draw = true
 			dragged_gizmo = null
 			if not is_moving_content:
+				original_bitmap = SelectionMap.new()
 				commit_undo("Select", undo_data)
+				angle = 0.0
 
 	if dragged_gizmo:
 		if dragged_gizmo.type == Gizmo.Type.SCALE:
@@ -166,17 +169,17 @@ func _input(event: InputEvent) -> void:
 			_gizmo_rotate()
 	else:  # Set the appropriate cursor
 		if gizmo_hover:
-			Global.main_viewport.mouse_default_cursor_shape = gizmo_hover.get_cursor()
+			DisplayServer.cursor_set_shape(gizmo_hover.get_cursor())
 		else:
-			var cursor := Control.CURSOR_ARROW
+			var cursor := DisplayServer.CURSOR_ARROW
 			if Global.cross_cursor:
-				cursor = Control.CURSOR_CROSS
+				cursor = DisplayServer.CURSOR_CROSS
 			var layer: BaseLayer = project.layers[project.current_layer]
 			if not layer.can_layer_get_drawn():
-				cursor = Control.CURSOR_FORBIDDEN
+				cursor = DisplayServer.CURSOR_FORBIDDEN
 
-			if Global.main_viewport.mouse_default_cursor_shape != cursor:
-				Global.main_viewport.mouse_default_cursor_shape = cursor
+			if DisplayServer.cursor_get_shape() != cursor:
+				DisplayServer.cursor_set_shape(cursor)
 
 
 func _move_with_arrow_keys(event: InputEvent) -> void:
@@ -210,14 +213,14 @@ func _move_with_arrow_keys(event: InputEvent) -> void:
 		var move := input.rotated(snappedf(Global.camera.rotation, PI / 2))
 		# These checks are needed to fix a bug where the selection got stuck
 		# to the canvas boundaries when they were 1px away from them
-		if is_equal_approx(absf(move.x), 0.0):
+		if is_zero_approx(absf(move.x)):
 			move.x = 0
-		if is_equal_approx(absf(move.y), 0.0):
+		if is_zero_approx(absf(move.y)):
 			move.y = 0
 		move_content(move * step)
 
 
-# Check if an event is a ui_up/down/left/right event-press
+## Check if an event is a ui_up/down/left/right event pressed
 func _is_action_direction_pressed(event: InputEvent) -> bool:
 	for action in KEY_MOVE_ACTION_NAMES:
 		if event.is_action_pressed(action, false, true):
@@ -225,7 +228,7 @@ func _is_action_direction_pressed(event: InputEvent) -> bool:
 	return false
 
 
-# Check if an event is a ui_up/down/left/right event release
+## Check if an event is a ui_up/down/left/right event
 func _is_action_direction(event: InputEvent) -> bool:
 	for action in KEY_MOVE_ACTION_NAMES:
 		if event.is_action(action, true):
@@ -233,7 +236,7 @@ func _is_action_direction(event: InputEvent) -> bool:
 	return false
 
 
-# Check if an event is a ui_up/down/left/right event release
+## Check if an event is a ui_up/down/left/right event release
 func _is_action_direction_released(event: InputEvent) -> bool:
 	for action in KEY_MOVE_ACTION_NAMES:
 		if event.is_action_released(action, true):
@@ -337,8 +340,6 @@ func _gizmo_resize() -> void:
 			temp_rect.position.y = end_y - temp_rect.size.y
 
 	big_bounding_rectangle = temp_rect.abs()
-#	big_bounding_rectangle.position = Vector2(big_bounding_rectangle.position).ceil()
-#	big_bounding_rectangle.size = big_bounding_rectangle.size.floor()
 	if big_bounding_rectangle.size.x == 0:
 		big_bounding_rectangle.size.x = 1
 	if big_bounding_rectangle.size.y == 0:
@@ -370,9 +371,14 @@ func _resize_rect(pos: Vector2, dir: Vector2) -> void:
 
 func resize_selection() -> void:
 	var size := big_bounding_rectangle.size.abs()
-	if is_moving_content:
+	if original_bitmap.is_empty():
+		print("original_bitmap is empty, this shouldn't happen.")
+	else:
 		Global.current_project.selection_map.copy_from(original_bitmap)
+	if is_moving_content:
+		content_pivot = original_big_bounding_rectangle.size / 2.0
 		preview_image.copy_from(original_preview_image)
+		DrawingAlgos.nn_rotate(preview_image, angle, content_pivot)
 		preview_image.resize(size.x, size.y, Image.INTERPOLATE_NEAREST)
 		if temp_rect.size.x < 0:
 			preview_image.flip_x()
@@ -380,6 +386,12 @@ func resize_selection() -> void:
 			preview_image.flip_y()
 		preview_image_texture = ImageTexture.create_from_image(preview_image)
 
+	Global.current_project.selection_map.copy_from(original_bitmap)
+	var bitmap_pivot := (
+		original_big_bounding_rectangle.position
+		+ ((original_big_bounding_rectangle.end - original_big_bounding_rectangle.position) / 2)
+	)
+	DrawingAlgos.nn_rotate(Global.current_project.selection_map, angle, bitmap_pivot)
 	Global.current_project.selection_map.resize_bitmap_values(
 		Global.current_project, size, temp_rect.size.x < 0, temp_rect.size.y < 0
 	)
@@ -388,40 +400,12 @@ func resize_selection() -> void:
 	Global.canvas.queue_redraw()
 
 
-func _gizmo_rotate() -> void:  ## Currently unused, as it does not work properly yet
-	var angle := image_current_pixel.angle_to_point(mouse_pos_on_gizmo_drag)
-	angle = deg_to_rad(floorf(rad_to_deg(angle)))
-	if angle == prev_angle:
-		return
-	prev_angle = angle
-	var pivot := Vector2(big_bounding_rectangle.size.x / 2.0, big_bounding_rectangle.size.y / 2.0)
-	preview_image.copy_from(original_preview_image)
-	if original_big_bounding_rectangle.position != big_bounding_rectangle.position:
-		preview_image.fill(Color(0, 0, 0, 0))
-		var pos_diff := (
-			(original_big_bounding_rectangle.position - big_bounding_rectangle.position).abs()
-		)
-		preview_image.blit_rect(
-			original_preview_image, Rect2(Vector2.ZERO, preview_image.get_size()), pos_diff
-		)
-	DrawingAlgos.nn_rotate(preview_image, angle, pivot)
-	preview_image_texture = ImageTexture.create_from_image(preview_image)
-
-	var bitmap_image := SelectionMap.new()
-	bitmap_image.copy_from(original_bitmap)
-	var bitmap_pivot := (
-		original_big_bounding_rectangle.position
-		+ ((original_big_bounding_rectangle.end - original_big_bounding_rectangle.position) / 2)
-	)
-	DrawingAlgos.nn_rotate(bitmap_image, angle, bitmap_pivot)
-	Global.current_project.selection_map.copy_from(bitmap_image)
-	Global.current_project.selection_map_changed()
-	big_bounding_rectangle = Global.current_project.selection_map.get_used_rect()
-	queue_redraw()
-	Global.canvas.queue_redraw()
+func _gizmo_rotate() -> void:
+	angle = image_current_pixel.angle_to_point(mouse_pos_on_gizmo_drag)
+	resize_selection()
 
 
-func select_rect(rect: Rect2i, operation: int = SelectionOperation.ADD) -> void:
+func select_rect(rect: Rect2i, operation := SelectionOperation.ADD) -> void:
 	var project := Global.current_project
 	# Used only if the selection is outside of the canvas boundaries,
 	# on the left and/or above (negative coords)
@@ -508,15 +492,15 @@ func transform_content_confirm() -> void:
 		return
 	var project := Global.current_project
 	for cel in _get_selected_draw_cels():
-		var cel_image: Image = cel.get_image()
-		var src: Image = preview_image
+		var cel_image := cel.get_image()
+		var src := Image.new()
+		src.copy_from(preview_image)
 		if not is_pasting:
 			src.copy_from(cel.transformed_content)
 			cel.transformed_content = null
+			DrawingAlgos.nn_rotate(src, angle, content_pivot)
 			src.resize(
-				big_bounding_rectangle.size.x,
-				big_bounding_rectangle.size.y,
-				Image.INTERPOLATE_NEAREST
+				preview_image.get_width(), preview_image.get_height(), Image.INTERPOLATE_NEAREST
 			)
 			if temp_rect.size.x < 0:
 				src.flip_x()
@@ -537,6 +521,8 @@ func transform_content_confirm() -> void:
 	original_bitmap = SelectionMap.new()
 	is_moving_content = false
 	is_pasting = false
+	angle = 0.0
+	content_pivot = Vector2.ZERO
 	queue_redraw()
 	Global.canvas.queue_redraw()
 
@@ -568,6 +554,8 @@ func transform_content_cancel() -> void:
 	preview_image = Image.new()
 	original_bitmap = SelectionMap.new()
 	is_pasting = false
+	angle = 0.0
+	content_pivot = Vector2.ZERO
 	queue_redraw()
 	Global.canvas.queue_redraw()