1from ase import Atoms 

2from ase.io.jsonio import encode, decode 

3 

4 

5class AtomsClipboard: 

6 def __init__(self, tk): 

7 self.tk = tk 

8 

9 def get_text(self) -> str: 

10 return self.tk.clipboard_get() 

11 

12 def set_text(self, text: str) -> None: 

13 self.tk.clipboard_clear() 

14 self.tk.clipboard_append(text) 

15 

16 def get_atoms(self) -> Atoms: 

17 text = self.get_text() 

18 atoms = decode(text) 

19 if not isinstance(atoms, Atoms): 

20 typename = type(atoms).__name__ 

21 raise ValueError(f'Cannot convert {typename} to Atoms') 

22 return atoms 

23 

24 def set_atoms(self, atoms: Atoms) -> None: 

25 json_text = encode(atoms) 

26 self.set_text(json_text)