Mouse misaligns when reopen with maximize mode

[Teiple]

Tested on Windows 10, Godot 4.3-stable.

When you specifically close the Boscaceoil Blue when in maximized mode, then reopen it, the mouse position got from get_local_mouse_position() will be misaligned. I added a ColorRect and updated the code to control its position using get_local_mouse_position() when the app was running.

Here was what it looked like in windowed mode and full-screen mode:

And here was it in maximized mode:

The misaligned mouse position caused the problem when bars from arrangement was going to be deleted, the mouse position, which is used to determine which bar would be selected, failed to fall into the bounding Rect of the track. It either wouldn't delete any bars or delete the wrong one.

I suspect this code here, at res://globals/WindowManager.gd, line 71 to line 73, is the issue:

# On web the position is meaningless and should be zero, if it's not then mouse position becomes misaligned.
if not OS.has_feature("web"):
		_main_window.move_to_center()

Remove the not made the issue disappear. So maybe moving the window in maximized mode is not desirable.

[YuriSizov]

Hey, thanks for the report!

I've recently encountered a similar issue in another project and can tell that this is some sort of engine bug because it's rooted in what position is reported by input events. Interestingly enough, boundary detection used by UI nodes does not suffer from this issue and uses correct transforms.

You are also correct about the solution, at least the one I decided to use in that other project: when in FS or maximized we shouldn't move the window. It should be an easy fix then when I get to working on the next version. I use pretty much the same basic WindowManager class in there, and the method now looks like this:

func _restore_window_size() -> void:
	# On web the size is dictated by the browser window, we have no control over it.
	if not OS.has_feature("web"):
		_main_window.size = Controller.settings_manager.get_windowed_size()

	# Calling move_to_center() on a maximized window (at least), messes up input coordinates,
	# if you have black bars.
	var prevent_move := false

	if Controller.settings_manager.is_windowed_maximized():
		_main_window.mode = Window.MODE_MAXIMIZED
		prevent_move = true

	if Controller.settings_manager.is_fullscreen():
		_main_window.mode = Window.MODE_FULLSCREEN
		prevent_move = true

	# On web the position is meaningless and should be zero, if it's not then mouse position becomes misaligned.
	if not OS.has_feature("web") && not prevent_move:
		_main_window.move_to_center()

PS. Interesting though that you experience it in Bosca. In my case, the project was a Godot 4.3 game that used fixed aspect ratio scaling, which led to black bars, and the offset was exactly related to those black bars. But I'm also on Windows 11, not 10, so I can't test if there are some Windows 10 specific scenarios. Judging by your screenshot, I can only assume it's related to the size of window decorations (i.e. the title bar).