Move Centralize Image to the frame menu (#884)

* moved centralize to frame menu

And make it effect on selected frames

* Formatting (1 of 2)

* Formatting (2 of 2)

src/Autoload/DrawingAlgos.gd

@@ -462,32 +462,36 @@ func scale_image(width: int, height: int, interpolation: int) -> void:
 	general_undo_scale()
 
 
-func centralize() -> void:
+func centralize(indices: Array) -> void:
+	var project: Project = Global.current_project
 	Global.canvas.selection.transform_content_confirm()
-	# Find used rect of the current frame (across all of the layers)
-	var used_rect := Rect2()
-	for cel in Global.current_project.frames[Global.current_project.current_frame].cels:
-		if not cel is PixelCel:
+	project.undos += 1
+	project.undo_redo.create_action("Centralize")
+	for frame in indices:
+		# Find used rect of the current frame (across all of the layers)
+		var used_rect := Rect2()
+		for cel in project.frames[frame].cels:
+			if not cel is PixelCel:
+				continue
+			var cel_rect: Rect2 = cel.image.get_used_rect()
+			if not cel_rect.has_no_area():
+				used_rect = cel_rect if used_rect.has_no_area() else used_rect.merge(cel_rect)
+		if used_rect.has_no_area():
 			continue
-		var cel_rect: Rect2 = cel.image.get_used_rect()
-		if not cel_rect.has_no_area():
-			used_rect = cel_rect if used_rect.has_no_area() else used_rect.merge(cel_rect)
-	if used_rect.has_no_area():
-		return
 
-	var offset: Vector2 = (0.5 * (Global.current_project.size - used_rect.size)).floor()
-	general_do_centralize()
-	for cel in Global.current_project.frames[Global.current_project.current_frame].cels:
-		if not cel is PixelCel:
-			continue
-		var sprite := Image.new()
-		sprite.create(
-			Global.current_project.size.x, Global.current_project.size.y, false, Image.FORMAT_RGBA8
-		)
-		sprite.blend_rect(cel.image, used_rect, offset)
-		Global.current_project.undo_redo.add_do_property(cel.image, "data", sprite.data)
-		Global.current_project.undo_redo.add_undo_property(cel.image, "data", cel.image.data)
-	general_undo_centralize()
+		# Now apply Centralization
+		var offset: Vector2 = (0.5 * (project.size - used_rect.size)).floor()
+		for cel in project.frames[frame].cels:
+			if not cel is PixelCel:
+				continue
+			var sprite := Image.new()
+			sprite.create(project.size.x, project.size.y, false, Image.FORMAT_RGBA8)
+			sprite.blend_rect(cel.image, used_rect, offset)
+			project.undo_redo.add_do_property(cel.image, "data", sprite.data)
+			project.undo_redo.add_undo_property(cel.image, "data", cel.image.data)
+	project.undo_redo.add_undo_method(Global, "undo_or_redo", true)
+	project.undo_redo.add_do_method(Global, "undo_or_redo", false)
+	project.undo_redo.commit_action()
 
 
 func crop_image() -> void:
@@ -591,19 +595,6 @@ func general_undo_scale() -> void:
 	project.undo_redo.commit_action()
 
 
-func general_do_centralize() -> void:
-	var project: Project = Global.current_project
-	project.undos += 1
-	project.undo_redo.create_action("Centralize")
-
-
-func general_undo_centralize() -> void:
-	var project: Project = Global.current_project
-	project.undo_redo.add_undo_method(Global, "undo_or_redo", true)
-	project.undo_redo.add_do_method(Global, "undo_or_redo", false)
-	project.undo_redo.commit_action()
-
-
 func generate_outline(
 	image: Image,
 	affect_selection: bool,

src/Autoload/Global.gd

@@ -29,7 +29,6 @@ enum ImageMenu {
 	SCALE_IMAGE,
 	CROP_IMAGE,
 	FLIP,
-	CENTRALIZE_IMAGE,
 	ROTATE,
 	OUTLINE,
 	DROP_SHADOW,
@@ -293,10 +292,6 @@ func _initialize_keychain() -> void:
 		Keychain.MenuInputAction.new("", "Edit menu", true, "EditMenu", EditMenu.PREFERENCES),
 		"scale_image":
 		Keychain.MenuInputAction.new("", "Image menu", true, "ImageMenu", ImageMenu.SCALE_IMAGE),
-		"centralize_image":
-		Keychain.MenuInputAction.new(
-			"", "Image menu", true, "ImageMenu", ImageMenu.CENTRALIZE_IMAGE
-		),
 		"crop_image":
 		Keychain.MenuInputAction.new("", "Image menu", true, "ImageMenu", ImageMenu.CROP_IMAGE),
 		"resize_canvas":

src/UI/Timeline/FrameButton.gd

@@ -1,6 +1,6 @@
 extends Button
 
-enum { REMOVE, CLONE, MOVE_LEFT, MOVE_RIGHT, PROPERTIES, REVERSE }
+enum { REMOVE, CLONE, MOVE_LEFT, MOVE_RIGHT, PROPERTIES, REVERSE, CENTRALIZE }
 
 var frame := 0
 
@@ -92,6 +92,8 @@ func _on_PopupMenu_id_pressed(id: int) -> void:
 			Global.dialog_open(true)
 		REVERSE:
 			Global.animation_timeline.reverse_frames(indices)
+		CENTRALIZE:
+			DrawingAlgos.centralize(indices)
 
 
 func change_frame_order(rate: int) -> void:

src/UI/Timeline/FrameButton.tscn

@@ -20,7 +20,7 @@ __meta__ = {
 margin_right = 20.0
 margin_bottom = 20.0
 mouse_default_cursor_shape = 2
-items = [ "Remove Frame", null, 0, false, true, -1, 0, null, "", false, "Clone Frame", null, 0, false, false, -1, 0, null, "", false, "Move Left", null, 0, false, true, -1, 0, null, "", false, "Move Right", null, 0, false, true, -1, 0, null, "", false, "Frame Properties", null, 0, false, false, -1, 0, null, "", false, "Reverse Frames", null, 0, false, true, 5, 0, null, "", false ]
+items = [ "Remove Frame", null, 0, false, true, -1, 0, null, "", false, "Clone Frame", null, 0, false, false, -1, 0, null, "", false, "Move Left", null, 0, false, true, -1, 0, null, "", false, "Move Right", null, 0, false, true, -1, 0, null, "", false, "Frame Properties", null, 0, false, false, -1, 0, null, "", false, "Reverse Frames", null, 0, false, true, 5, 0, null, "", false, "Centralize Frames", null, 0, false, false, 6, 0, null, "", false ]
 __meta__ = {
 "_edit_use_anchors_": false
 }

src/UI/TopMenuContainer/TopMenuContainer.gd

@@ -277,7 +277,6 @@ func _setup_image_menu() -> void:
 		"Scale Image",
 		"Crop Image",
 		"Mirror Image",
-		"Centralize Image",
 		"Rotate Image",
 		"Outline",
 		"Drop Shadow",
@@ -654,9 +653,6 @@ func image_menu_id_pressed(id: int) -> void:
 		Global.ImageMenu.OFFSET_IMAGE:
 			_popup_dialog(Global.control.get_node("Dialogs/ImageEffects/OffsetImage"))
 
-		Global.ImageMenu.CENTRALIZE_IMAGE:
-			DrawingAlgos.centralize()
-
 		Global.ImageMenu.CROP_IMAGE:
 			DrawingAlgos.crop_image()