How to copy a Py5Graphics object?

[villares]

If you use the .copy() method of a Py5Graphics object, you get a Py5Image object, not another Py5Graphics (I think this is the same behavior as Processing Java, with PGraphics and PImage).

But Python's copy.copy can't do it either. Should it be able to copy Py5Graphics?

I guess this is more of my curiosity than an "urgent need"... but, the question remains, how would you copy a Py5Graphics object?

--> 38       dst = copy(mask)
    ..................................................
     mask = Py5Graphics(width=210, height=210)
    ..................................................

File "/home/villares/apps/thonny/lib/python3.10/copy.py", line 102, in copy
    66   def copy(x):
 (...)
    98                   raise Error("un(shallow)copyable object of type %s" % cls)
    99   
    100      if isinstance(rv, str):
    101          return x
--> 102      return _reconstruct(x, None, *rv)
    ..................................................
     x = Py5Graphics(width=210, height=210)
     rv = (<function '__newobj__' copyreg.py:100>, (<class 'py5.graphi
           cs.Py5Graphics'>, ), 
           {'_instance': <java object 'processing.awt.PGraphicsJava2D'
           >,
            '_np_pixels': None,
            'pixels': <py5.mixins.pixels.PixelArray object at 0x7f222b
           311330>}, 
          None, None, )
    ..................................................

File "/home/villares/apps/thonny/lib/python3.10/copy.py", line 265, in _reconstruct
    259  def _reconstruct(x, memo, func, args,
    260                   state=None, listiter=None, dictiter=None,
    261                   deepcopy=deepcopy):
    262      deep = memo is not None
    263      if deep and args:
    264          args = (deepcopy(arg, memo) for arg in args)
--> 265      y = func(*args)
    266      if deep:
    ..................................................
     func = <function '__newobj__' copyreg.py:100>
     args = (<class 'py5.graphics.Py5Graphics'>, )
    ..................................................

File "/home/villares/apps/thonny/lib/python3.10/copyreg.py", line 101, in __newobj__
    100  def __newobj__(cls, *args):
--> 101      return cls.__new__(cls, *args)
    ..................................................
     args = ()
    ..................................................

---- (full traceback above) ----
File "/home/villares/Área de trabalho/Sync/Curso_Quadrinhos/more_mask.py", line 16, in draw
    clipped = fill_and_clip(
File "/home/villares/Área de trabalho/Sync/Curso_Quadrinhos/more_mask.py", line 38, in fill_and_clip
    dst = copy(mask)
File "/home/villares/apps/thonny/lib/python3.10/copy.py", line 102, in copy
    return _reconstruct(x, None, *rv)
File "/home/villares/apps/thonny/lib/python3.10/copy.py", line 265, in _reconstruct
    y = func(*args)
File "/home/villares/apps/thonny/lib/python3.10/copyreg.py", line 101, in __newobj__
    return cls.__new__(cls, *args)

TypeError: Py5Graphics.__new__() missing 1 required positional argument: 'pgraphics'

[hx2A]

Python's copy library isn't going to be able to copy py5 objects because it isn't able to copy the Java objects. And it seems Processing doesn't do that either, because that's not how the copy() method works.

However, it should be possible to simulate a copy to a new Py5Graphics object by using copy() and then drawing the Py5Image object to a properly sized Py5Graphics object with the background() method. But wait: what about the fill, stroke, stroke weight settings, etc? Getting all of that duplicated would be a lot of work.