83 lines
2.1 KiB
GDScript
83 lines
2.1 KiB
GDScript
@tool
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extends Control
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enum { MARGIN_LEFT, MARGIN_RIGHT, MARGIN_TOP, MARGIN_BOTTOM, MARGIN_CENTER }
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const DRAW_NOTHING := -1
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const DRAW_CENTERED := -2
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const MARGIN_NONE := -1
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var _draw_margin := DRAW_NOTHING
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var _should_split := false
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func _notification(what: int) -> void:
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if what == NOTIFICATION_MOUSE_EXIT:
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_draw_margin = DRAW_NOTHING
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queue_redraw()
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elif what == NOTIFICATION_MOUSE_ENTER and not _should_split:
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_draw_margin = DRAW_CENTERED
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queue_redraw()
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func _gui_input(event: InputEvent) -> void:
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if _should_split and event is InputEventMouseMotion:
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_draw_margin = _find_hover_margin(event.position)
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queue_redraw()
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func _draw() -> void:
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var rect: Rect2
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if _draw_margin == DRAW_NOTHING:
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return
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elif _draw_margin == DRAW_CENTERED:
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rect = Rect2(Vector2.ZERO, size)
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elif _draw_margin == MARGIN_LEFT:
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rect = Rect2(0, 0, size.x * 0.5, size.y)
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elif _draw_margin == MARGIN_TOP:
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rect = Rect2(0, 0, size.x, size.y * 0.5)
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elif _draw_margin == MARGIN_RIGHT:
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var half_width = size.x * 0.5
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rect = Rect2(half_width, 0, half_width, size.y)
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elif _draw_margin == MARGIN_BOTTOM:
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var half_height = size.y * 0.5
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rect = Rect2(0, half_height, size.x, half_height)
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var stylebox := get_theme_stylebox("panel", "TooltipPanel")
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draw_style_box(stylebox, rect)
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func set_enabled(enabled: bool, should_split: bool = true) -> void:
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visible = enabled
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_should_split = should_split
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if enabled:
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_draw_margin = DRAW_NOTHING
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queue_redraw()
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func get_hover_margin() -> int:
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return _draw_margin
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func _find_hover_margin(point: Vector2) -> int:
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var half_size := size * 0.5
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var left := point.distance_squared_to(Vector2(0, half_size.y))
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var lesser := left
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var lesser_margin := MARGIN_LEFT
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var top := point.distance_squared_to(Vector2(half_size.x, 0))
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if lesser > top:
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lesser = top
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lesser_margin = MARGIN_TOP
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var right := point.distance_squared_to(Vector2(size.x, half_size.y))
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if lesser > right:
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lesser = right
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lesser_margin = MARGIN_RIGHT
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var bottom := point.distance_squared_to(Vector2(half_size.x, size.y))
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if lesser > bottom:
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#lesser = bottom # unused result
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lesser_margin = MARGIN_BOTTOM
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return lesser_margin
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