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"""
Data structures for the selection.
"""
from __future__ import annotations
from enum import Enum
__all__ = [
"SelectionType",
"PasteMode",
"SelectionState",
]
class SelectionType(Enum):
"""
Type of selection.
"""
#: Characters. (Visual in Vi.)
CHARACTERS = "CHARACTERS"
#: Whole lines. (Visual-Line in Vi.)
LINES = "LINES"
#: A block selection. (Visual-Block in Vi.)
BLOCK = "BLOCK"
class PasteMode(Enum):
EMACS = "EMACS" # Yank like emacs.
VI_AFTER = "VI_AFTER" # When pressing 'p' in Vi.
VI_BEFORE = "VI_BEFORE" # When pressing 'P' in Vi.
class SelectionState:
"""
State of the current selection.
:param original_cursor_position: int
:param type: :class:`~.SelectionType`
"""
def __init__(
self,
original_cursor_position: int = 0,
type: SelectionType = SelectionType.CHARACTERS,
) -> None:
self.original_cursor_position = original_cursor_position
self.type = type
self.shift_mode = False
def enter_shift_mode(self) -> None:
self.shift_mode = True
def __repr__(self) -> str:
return "{}(original_cursor_position={!r}, type={!r})".format(
self.__class__.__name__,
self.original_cursor_position,
self.type,
)
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