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54 lines
1.4 KiB
54 lines
1.4 KiB
7 months ago
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@tool
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extends Tree
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## Script that handles drag and drop on the layer tree.
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signal layer_moved(from:int, to:int)
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#region DRAG AND DROP
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################################################################################
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func _get_drag_data(position:Vector2) -> Variant:
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if get_selected() == null or get_selected() == get_root():
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return
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if find_parent('StyleEditor').current_style.inherits != null:
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return
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drop_mode_flags = DROP_MODE_INBETWEEN
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var preview := Label.new()
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preview.text = " "+get_selected().get_text(0)
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preview.add_theme_stylebox_override('normal', get_theme_stylebox("Background", "EditorStyles"))
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set_drag_preview(preview)
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return get_selected()
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func _can_drop_data(position:Vector2, data:Variant) -> bool:
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return data is TreeItem
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func _drop_data(position:Vector2, item:Variant) -> void:
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var to_item := get_item_at_position(position)
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var drop_section := get_drop_section_at_position(position)
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if to_item == get_root():
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if item.get_index() != 0:
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layer_moved.emit(item.get_index(), 0)
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return
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if to_item == null:
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if item.get_index() != get_root().get_child_count()-1:
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layer_moved.emit(item.get_index(), get_root().get_child_count()-1)
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return
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var to_idx: int = to_item.get_index()+max(0, drop_section)
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if to_idx > item.get_index():
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to_idx -= 1
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if to_idx != item.get_index():
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layer_moved.emit(item.get_index(), to_idx)
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#endregion
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