kitty/kitty/layout/tall.py
2020-08-30 14:05:43 +05:30

285 lines
12 KiB
Python

#!/usr/bin/env python
# vim:fileencoding=utf-8
# License: GPLv3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net>
from itertools import islice, repeat
from typing import Dict, Generator, List, Optional, Sequence, Tuple
from kitty.borders import BorderColor
from kitty.conf.utils import to_bool
from kitty.constants import Edges
from kitty.typing import EdgeLiteral, WindowType
from kitty.window_list import WindowGroup, WindowList
from .base import (
BorderLine, Layout, LayoutData, LayoutDimension, LayoutOpts, NeighborsMap,
lgd, normalize_biases, safe_increment_bias, variable_bias
)
from .vertical import borders
def neighbors_for_tall_window(
num_full_size_windows: int,
window: WindowType,
all_windows: WindowList,
mirrored: bool = False,
main_is_horizontal: bool = True
) -> 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': [], 'bottom': []}
main_before: EdgeLiteral = 'left' if main_is_horizontal else 'top'
main_after: EdgeLiteral = 'right' if main_is_horizontal else 'bottom'
cross_before: EdgeLiteral = 'top' if main_is_horizontal else 'left'
cross_after: EdgeLiteral = 'bottom' if main_is_horizontal else 'right'
if mirrored:
main_before, main_after = main_after, main_before
if prev is not None:
ans[main_before] = [prev.id]
if idx < num_full_size_windows - 1:
if nxt is not None:
ans[main_after] = [nxt.id]
elif idx == num_full_size_windows - 1:
ans[main_after] = [w.id for w in groups[idx+1:]]
else:
ans[main_before] = [groups[num_full_size_windows - 1].id]
if idx > num_full_size_windows and prev is not None:
ans[cross_before] = [prev.id]
if nxt is not None:
ans[cross_after] = [nxt.id]
return ans
class TallLayoutOpts(LayoutOpts):
bias: Tuple[float, ...] = ()
full_size: int = 1
mirrored: bool = False
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,)
self.mirrored = to_bool(data.get('mirrored', 'false'))
class Tall(Layout):
name = 'tall'
main_is_horizontal = True
no_minimal_window_borders = True
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 simple_layout(self, all_windows: WindowList) -> Generator[Tuple[WindowGroup, LayoutData, LayoutData, bool], None, None]:
num = all_windows.num_groups
is_fat = not self.main_is_horizontal
mirrored = self.layout_opts.mirrored
groups = tuple(all_windows.iter_all_layoutable_groups())
main_bias = self.main_bias[::-1] if mirrored else self.main_bias
if mirrored:
groups = tuple(reversed(groups))
main_bias = normalize_biases(main_bias[:num])
xlayout = self.main_axis_layout(iter(groups), bias=main_bias)
for wg, xl in zip(groups, xlayout):
yl = next(self.perp_axis_layout(iter((wg,))))
if is_fat:
xl, yl = yl, xl
yield wg, xl, yl, True
def full_layout(self, all_windows: WindowList) -> Generator[Tuple[WindowGroup, LayoutData, LayoutData, bool], None, None]:
is_fat = not self.main_is_horizontal
mirrored = self.layout_opts.mirrored
groups = tuple(all_windows.iter_all_layoutable_groups())
main_bias = self.main_bias[::-1] if mirrored else self.main_bias
start = lgd.central.top if is_fat else lgd.central.left
size = 0
if mirrored:
fsg = groups[:self.num_full_size_windows + 1]
xlayout = self.main_axis_layout(reversed(fsg), bias=main_bias)
for i, wg in enumerate(reversed(fsg)):
xl = next(xlayout)
if i == 0:
size = xl.content_size + xl.space_before + xl.space_after
continue
yl = next(self.perp_axis_layout(iter((wg,))))
if is_fat:
xl, yl = yl, xl
yield wg, xl, yl, True
else:
xlayout = self.main_axis_layout(islice(groups, self.num_full_size_windows + 1), bias=main_bias)
for i, wg in enumerate(groups):
if i >= self.num_full_size_windows:
break
xl = next(xlayout)
yl = next(self.perp_axis_layout(iter((wg,))))
start = xl.content_pos + xl.content_size + xl.space_after
if is_fat:
xl, yl = yl, xl
yield wg, xl, yl, True
size = (lgd.central.height if is_fat else lgd.central.width) - start
ylayout = self.variable_layout(all_windows, self.biased_map)
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
yield wg, xl, yl, False
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
layouts = (self.simple_layout if num <= self.num_full_size_windows + 1 else self.full_layout)(all_windows)
for wg, xl, yl, is_full_size in layouts:
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, self.layout_opts.mirrored, self.main_is_horizontal)
def layout_action(self, action_name: str, args: Sequence[str], all_windows: WindowList) -> Optional[bool]:
if action_name == 'increase_num_full_size_windows':
self.layout_opts.full_size += 1
return True
if action_name == 'decrease_num_full_size_windows':
if self.layout_opts.full_size > 1:
self.layout_opts.full_size -= 1
return True
def minimal_borders(self, all_windows: WindowList) -> Generator[BorderLine, None, None]:
num = all_windows.num_groups
if num == 1 or not lgd.draw_minimal_borders:
return
bw = next(all_windows.iter_all_layoutable_groups()).effective_border()
if not bw:
return
if num <= self.num_full_size_windows + 1:
layout = (x[:3] for x in self.simple_layout(all_windows))
yield from borders(layout, self.main_is_horizontal, all_windows)
return
main_layouts: List[Tuple[WindowGroup, LayoutData, LayoutData]] = []
perp_borders: List[BorderLine] = []
layouts = (self.simple_layout if num <= self.num_full_size_windows else self.full_layout)(all_windows)
needs_borders_map = all_windows.compute_needs_borders_map(lgd.draw_active_borders)
active_group = all_windows.active_group
mirrored = self.layout_opts.mirrored
for wg, xl, yl, is_full_size in layouts:
if is_full_size:
main_layouts.append((wg, xl, yl))
else:
color = BorderColor.inactive
if needs_borders_map.get(wg.id):
color = BorderColor.active if wg is active_group else BorderColor.bell
if self.main_is_horizontal:
e1 = Edges(
xl.content_pos - xl.space_before,
yl.content_pos - yl.space_before,
xl.content_pos + xl.content_size + xl.space_after,
yl.content_pos - yl.space_before + bw
)
e3 = Edges(
xl.content_pos - xl.space_before,
yl.content_pos + yl.content_size + yl.space_after - bw,
xl.content_pos + xl.content_size + xl.space_after,
yl.content_pos + yl.content_size + yl.space_after,
)
e2 = Edges(
xl.content_pos + ((xl.content_size + xl.space_after - bw) if mirrored else -xl.space_before),
yl.content_pos - yl.space_before,
xl.content_pos + ((xl.content_size + xl.space_after) if mirrored else (bw - xl.space_before)),
yl.content_pos + yl.content_size + yl.space_after,
)
else:
e1 = Edges(
xl.content_pos - xl.space_before,
yl.content_pos - yl.space_before,
xl.content_pos - xl.space_before + bw,
yl.content_pos + yl.content_size + yl.space_after,
)
e3 = Edges(
xl.content_pos + xl.content_size + xl.space_after - bw,
yl.content_pos - yl.space_before,
xl.content_pos + xl.content_size + xl.space_after,
yl.content_pos + yl.content_size + yl.space_after,
)
e2 = Edges(
xl.content_pos - xl.space_before,
yl.content_pos + ((yl.content_size + yl.space_after - bw) if mirrored else -yl.space_before),
xl.content_pos + xl.content_size + xl.space_after,
yl.content_pos + ((yl.content_size + yl.space_after) if mirrored else (bw - yl.space_before)),
)
perp_borders.append(BorderLine(e1, color))
perp_borders.append(BorderLine(e2, color))
perp_borders.append(BorderLine(e3, color))
mirrored = self.layout_opts.mirrored
yield from borders(
main_layouts, self.main_is_horizontal, all_windows,
start_offset=int(not mirrored), end_offset=int(mirrored)
)
yield from perp_borders[1:-1]
class Fat(Tall):
name = 'fat'
main_is_horizontal = False
main_axis_layout = Layout.ylayout
perp_axis_layout = Layout.xlayout