kitty/kitty/layout/tall.py
2020-05-12 22:43:54 +05:30

201 lines
8.4 KiB
Python

#!/usr/bin/env python
# vim:fileencoding=utf-8
# License: GPLv3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net>
from itertools import repeat
from typing import Dict, Generator, List, Tuple
from kitty.typing import EdgeLiteral, WindowType
from kitty.window_list import WindowList
from .base import (
Borders, Layout, LayoutDimension, LayoutOpts, NeighborsMap, all_borders,
lgd, no_borders, normalize_biases, safe_increment_bias, variable_bias
)
def neighbors_for_tall_window(num_full_size_windows: int, window: WindowType, all_windows: WindowList) -> NeighborsMap:
wg = all_windows.group_for_window(window)
assert wg is not None
groups = tuple(all_windows.iter_all_layoutable_groups())
idx = groups.index(wg)
prev = None if idx == 0 else groups[idx-1]
nxt = None if idx == len(groups) - 1 else groups[idx+1]
ans: NeighborsMap = {'left': [prev.id] if prev is not None else [], 'right': [], 'top': [], 'bottom': []}
if idx < num_full_size_windows - 1:
if nxt is not None:
ans['right'] = [nxt.id]
elif idx == num_full_size_windows - 1:
ans['right'] = [w.id for w in groups[idx+1:]]
else:
ans['left'] = [groups[num_full_size_windows - 1].id]
if idx > num_full_size_windows and prev is not None:
ans['top'] = [prev.id]
if nxt is not None:
ans['bottom'] = [nxt.id]
return ans
class TallLayoutOpts(LayoutOpts):
bias: Tuple[float, ...] = ()
full_size: int = 1
def __init__(self, data: Dict[str, str]):
try:
self.full_size = int(data.get('full_size', 1))
except Exception:
self.full_size = 1
self.full_size = fs = max(1, min(self.full_size, 100))
try:
b = int(data.get('bias', 50)) / 100
except Exception:
b = 0.5
b = max(0.1, min(b, 0.9))
self.bias = tuple(repeat(b / fs, fs)) + (1.0 - b,)
class Tall(Layout):
name = 'tall'
main_is_horizontal = True
only_between_border = Borders(False, False, False, True)
only_main_border = Borders(False, False, True, False)
layout_opts = TallLayoutOpts({})
main_axis_layout = Layout.xlayout
perp_axis_layout = Layout.ylayout
@property
def num_full_size_windows(self) -> int:
return self.layout_opts.full_size
def remove_all_biases(self) -> bool:
self.main_bias: List[float] = list(self.layout_opts.bias)
self.biased_map: Dict[int, float] = {}
return True
def variable_layout(self, all_windows: WindowList, biased_map: Dict[int, float]) -> LayoutDimension:
num = all_windows.num_groups - self.num_full_size_windows
bias = variable_bias(num, biased_map) if num > 1 else None
return self.perp_axis_layout(all_windows.iter_all_layoutable_groups(), bias=bias, offset=self.num_full_size_windows)
def apply_bias(self, idx: int, increment: float, all_windows: WindowList, is_horizontal: bool = True) -> bool:
num_windows = all_windows.num_groups
if self.main_is_horizontal == is_horizontal:
before_main_bias = self.main_bias
ncols = self.num_full_size_windows + 1
biased_col = idx if idx < self.num_full_size_windows else (ncols - 1)
self.main_bias = [
safe_increment_bias(self.main_bias[i], increment * (1 if i == biased_col else -1)) for i in range(ncols)
]
self.main_bias = normalize_biases(self.main_bias)
return self.main_bias != before_main_bias
num_of_short_windows = num_windows - self.num_full_size_windows
if idx < self.num_full_size_windows or num_of_short_windows < 2:
return False
idx -= self.num_full_size_windows
before_layout = list(self.variable_layout(all_windows, self.biased_map))
before = self.biased_map.get(idx, 0.)
candidate = self.biased_map.copy()
candidate[idx] = after = before + increment
if before_layout == list(self.variable_layout(all_windows, candidate)):
return False
self.biased_map = candidate
return before != after
def do_layout(self, all_windows: WindowList) -> None:
num = all_windows.num_groups
if num == 1:
self.layout_single_window_group(next(all_windows.iter_all_layoutable_groups()))
return
is_fat = not self.main_is_horizontal
if num <= self.num_full_size_windows + 1:
xlayout = self.main_axis_layout(all_windows.iter_all_layoutable_groups(), bias=self.main_bias)
for i, (wg, xl) in enumerate(zip(all_windows.iter_all_layoutable_groups(), xlayout)):
yl = next(self.perp_axis_layout(iter((wg,))))
if is_fat:
xl, yl = yl, xl
self.set_window_group_geometry(wg, xl, yl)
return
main_axis_groups = (gr for i, gr in enumerate(all_windows.iter_all_layoutable_groups()) if i <= self.num_full_size_windows)
xlayout = self.main_axis_layout(main_axis_groups, bias=self.main_bias)
attr: EdgeLiteral = 'bottom' if is_fat else 'right'
start = lgd.central.top if is_fat else lgd.central.left
for i, wg in enumerate(all_windows.iter_all_layoutable_groups()):
if i >= self.num_full_size_windows:
break
xl = next(xlayout)
yl = next(self.perp_axis_layout(iter((wg,))))
if is_fat:
xl, yl = yl, xl
geom = self.set_window_group_geometry(wg, xl, yl)
start = getattr(geom, attr) + wg.decoration(attr)
ylayout = self.variable_layout(all_windows, self.biased_map)
size = (lgd.central.height if is_fat else lgd.central.width) - start
for i, wg in enumerate(all_windows.iter_all_layoutable_groups()):
if i < self.num_full_size_windows:
continue
yl = next(ylayout)
xl = next(self.main_axis_layout(iter((wg,)), start=start, size=size))
if is_fat:
xl, yl = yl, xl
self.set_window_group_geometry(wg, xl, yl)
def neighbors_for_window(self, window: WindowType, windows: WindowList) -> NeighborsMap:
return neighbors_for_tall_window(self.num_full_size_windows, window, windows)
def minimal_borders(self, all_windows: WindowList, needs_borders_map: Dict[int, bool]) -> Generator[Borders, None, None]:
num = all_windows.num_groups
last_i = num - 1
groups = tuple(all_windows.iter_all_layoutable_groups())
for i, wg in enumerate(groups):
if needs_borders_map[wg.id]:
yield all_borders
continue
if i < self.num_full_size_windows:
if (last_i == i+1 or i+1 < self.num_full_size_windows) and needs_borders_map[groups[i+1].id]:
yield no_borders
else:
yield no_borders if i == last_i else self.only_main_border
continue
if i == last_i:
yield no_borders
break
if needs_borders_map[groups[i+1].id]:
yield no_borders
else:
yield self.only_between_border
class Fat(Tall):
name = 'fat'
main_is_horizontal = False
only_between_border = Borders(False, False, True, False)
only_main_border = Borders(False, False, False, True)
main_axis_layout = Layout.ylayout
perp_axis_layout = Layout.xlayout
def neighbors_for_window(self, window: WindowType, all_windows: WindowList) -> NeighborsMap:
wg = all_windows.group_for_window(window)
assert wg is not None
groups = tuple(all_windows.iter_all_layoutable_groups())
idx = groups.index(wg)
prev = None if idx == 0 else groups[idx-1]
nxt = None if idx == len(groups) - 1 else groups[idx+1]
ans: NeighborsMap = {'left': [], 'right': [], 'top': [] if prev is None else [prev.id], 'bottom': []}
if idx < self.num_full_size_windows - 1:
if nxt is not None:
ans['bottom'] = [nxt.id]
elif idx == self.num_full_size_windows - 1:
ans['bottom'] = [w.id for w in groups[idx+1:]]
else:
ans['top'] = [groups[self.num_full_size_windows - 1].id]
if idx > self.num_full_size_windows and prev is not None:
ans['left'] = [prev.id]
if nxt is not None:
ans['right'] = [nxt.id]
return ans