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"""
Send sequences to all open terminals.
"""
import glob
import os
from .settings import CACHE_DIR, OS
from . import util
def set_special(index, color, iterm_name="h"):
"""Convert a hex color to a special sequence."""
alpha = util.Color.alpha_num
if OS == "Darwin":
return "\033]P%s%s\033\\" % (iterm_name, color.strip("#"))
if index in [11, 708] and alpha != 100:
return "\033]%s;[%s]%s\007" % (index, alpha, color)
return "\033]%s;%s\007" % (index, color)
def set_color(index, color):
"""Convert a hex color to a text color sequence."""
if OS == "Darwin":
return "\033]P%x%s\033\\" % (index, color.strip("#"))
return "\033]4;%s;%s\007" % (index, color)
def set_iterm_tab_color(color):
"""Set iTerm2 tab/window color"""
red, green, blue = util.hex_to_rgb(color)
return """
\033]6;1;bg;red;brightness;%s\a
\033]6;1;bg;green;brightness;%s\a
\033]6;1;bg;blue;brightness;%s\a
""" % (red, green, blue)
def create_sequences(colors):
"""Create the escape sequences."""
# Colors 0-15.
sequences = [set_color(index, colors["colors"]["color%s" % index])
for index in range(16)]
# Special colors.
# Source: https://goo.gl/KcoQgP
# 10 = foreground, 11 = background, 12 = cursor foregound
# 13 = mouse foreground
sequences.append(set_special(10, colors["special"]["foreground"], "g"))
sequences.append(set_special(11, colors["special"]["background"], "h"))
sequences.append(set_special(12, colors["colors"]["color1"], "l"))
sequences.append(set_special(13, colors["special"]["cursor"], "l"))
if OS == "Darwin":
sequences += set_iterm_tab_color(colors["special"]["background"])
# Send sequences to object.
util.Color.sequences = "".join(sequences)
# This escape sequence doesn't work in VTE terminals and their parsing of
# unknown sequences is garbage so we need to use some escape sequence
# M A G I C to hide the output.
# \0337 # Save cursor position.
# \033[8m # Conceal text.
# \033]708;#000000\007 # Garbage sequence.
# \0338 i # Restore cursor position.
sequences.append(f"\0337\033[8m\033]708;{colors['special']['background']}\007\0338")
return "".join(sequences)
def send(colors, cache_dir=CACHE_DIR):
"""Send colors to all open terminals."""
sequences = create_sequences(colors)
if OS == "Darwin":
tty_pattern = "/dev/ttys00[0-9]*"
else:
tty_pattern = "/dev/pts/[0-9]*"
# Writing to "/dev/pts/[0-9] lets you send data to open terminals.
for term in glob.glob(tty_pattern):
util.save_file(sequences, term)
util.save_file(sequences, os.path.join(cache_dir, "sequences"))
print("colors: Set terminal colors.")
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