From 011d11463bc779965b05f66837de70400f946eca Mon Sep 17 00:00:00 2001 From: Akemi Izuko Date: Wed, 23 Nov 2022 01:05:55 -0700 Subject: [PATCH] Add python screenshot script --- bin/screenshot_wayland.py | 243 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 243 insertions(+) create mode 100755 bin/screenshot_wayland.py diff --git a/bin/screenshot_wayland.py b/bin/screenshot_wayland.py new file mode 100755 index 0000000..e6d987c --- /dev/null +++ b/bin/screenshot_wayland.py @@ -0,0 +1,243 @@ +#!/usr/bin/env python3 +# The all-in-one solution to taking and modifying screenshots on sWayland +# +# Additional dependencies: +# - Python's pillow library +# - pip install --user pillow-avif-plugin # For avif support (recommended) +# - grim +# - swappy +import argparse, os, time, re, shutil +from subprocess import run, Popen, PIPE, DEVNULL +from PIL import Image +from PIL.ImageFilter import GaussianBlur +from pathlib import Path +from typing import * + +DIR = Path(f"{os.environ['HOME']}/Desktop/screenshots_tmp") # Default + +# Returns the path of the latest screenshot +def get_latest_sceenshot_path() -> Path: + pics = [f for f in os.listdir(DIR) if os.path.isfile(DIR / f)] + pngs = [p for p in pics if re.fullmatch("[0-9_]+\.png", p)] + pngs.sort() + return Path(pngs[-1]) + return pngs[-1] + +# Returns a path to an unused screenshot in DIR +def get_sceenshot_path() -> Path: + t = time.time() + p = DIR / f"{round(t)}.png" + + if os.path.isfile(p): + return DIR / f"{str(t).replace('.', '_')}.png" + else: + return p + +# Copies the image to the wayland clipboard +def copy_to_clipboard(pic: Path): + with open(pic, 'r') as img: + run(["wl-copy"], stdin=img, timeout=4) + +# Interactively gets user to select an area of the screen +# String matches regex /[0-9]+,[0-9]+ [0-9]+x[0-9]+/ +# Example: 287,526 474x369 +def select_area() -> str: + slurp = run(["slurp"], text=True, stdout=PIPE) + slurp.check_returncode() + return slurp.stdout.strip() + +# Adds drop-shadow to an image. If `img` and `save` are the same path, the image +# is overwritten +def add_drop_shadow(img: Path, save: Path, back_color: str, shadow_color: str): + with Image.open(img) as img: + mode = img.mode + + border_width = max(img.size) // 20 # 5% of larger dim + width = img.size[0] + border_width*2 + height = img.size[1] + border_width*2 + + shadow = Image.new(mode, img.size, color=shadow_color) + canvas = Image.new(mode, (width, height), color=back_color) + + canvas.paste(shadow, box=(border_width, int(border_width*1.16))) + canvas = canvas.filter(GaussianBlur(border_width // 4)) + + canvas.paste(img, box=(border_width, border_width)) + + canvas.save(save) + +# Uses grim for wayland to take a screenshot. Default to full screen without +# dims. exact_dims must match a slurp regex +def take_screenshot(path, exact_dims=None): + if exact_dims is not None: + run(["grim", "-g", exact_dims, path]).check_returncode() + else: + run(["grim", path]).check_returncode() + +# Takes a screenshot as specified by args +def take_subcommand(args): + save_path = get_sceenshot_path() + + match args.region: + case "full": + take_screenshot(save_path, None) + case "exact": + take_screenshot(save_path, args.dimensions) + case "select": + take_screenshot(save_path, select_area()) + case _: + raise Exception(f"Region '{args.region}' not recognized") + + match args.drop_shadow: + case "light": + add_drop_shadow(save_path, save_path, 'white', 'black') + case "dark": + add_drop_shadow(save_path, save_path, '#515e6e', 'black') + + if args.clipboard: + copy_to_clipboard(save_path) + + if args.file is not None and not os.path.isfile(args.file): + shutil.copyfile(save_path, args.file) + elif args.file is not None: + raise Exception(f"Refusing to overwrite {args.file}") + +# Provides a drawing editor for the latest image +def markup_latest(args): + img = get_latest_sceenshot_path() + + if args.gimp: + print("TODO gimp") + else: + run(["swappy", img]).check_returncode() + + if args.clipboard: + copy_to_clipboard(img) + +# =================================================================== +# Parse args +# =================================================================== +def parser_dir(s: str): + if os.path.isdir(s): + return Path(s) + else: + raise NotADirectoryError(f"`{s}` is not a directory") + +def slurp_regex(s: str) -> str: + s = s.strip() + + if re.fullmatch('[0-9]+,[0-9]+ [0-9]+x[0-9]+', s): + return s + else: + raise Exception( + f"`{s}` does not match pattern /[0-9]+,[0-9]+ [0-9]+x[0-9]+/") + +parser = argparse.ArgumentParser( + prog="Screenshot Wayland v1.0.0", + description='Take a screenshot on Sway' +); +parser.add_argument( + '-s', '--screenshot-dir', + type=parser_dir, + metavar="", + help='Save and edit directory. Default: ~/Desktop/screenshots_tmp', +); + +# Subcommands ==== +subcommands = parser.add_subparsers(dest='subcommand', required=True); +# Take ==== +take_subcmd = subcommands.add_parser( + "take", help="Takes a screenshot. (Default is full screen)"); +take_subcmd.add_argument( + '-c', '--clipboard', + action='store_true', + help='Save the screenshot to your clipboard', +); +take_subcmd.add_argument( + '-d', '--drop-shadow', + action='store', + choices=['light', 'dark'], + help='Apply a drop shadow to the final image with a light/dark background', +); + +# Different possible screenshot regions +region = take_subcmd.add_subparsers(dest='region', required=True); +region.add_parser( + 'full', help='Take a screenshot of the entire screen'); +exact = region.add_parser( + 'exact', help="Exact dimensions of screenshot: 'x,y width,height'"); +region.add_parser( + 'select', help="Use `slurp` to select a region with your mouse"); +exact.add_argument( + 'dimensions', + type=slurp_regex, + metavar="'N,N NxN'", + help="Exact dimensions of screenshot: 'x,y width,height'" +); + +take_subcmd.add_argument( + "file", nargs='?', + type=Path, + help="Save the screenshot to this file name" +); +# Edit ==== +edit_subcmd = subcommands.add_parser( + "edit", help="Apply an edit to the latest screenshot"); +edit_subcmd.add_argument( + '-r', '--resize', + type=int, + metavar="", + help='Resize the latest screenshot instead of taking a new one', +); +edit_subcmd.add_argument( + '-s', '--size', + type=int, + metavar="", + help='Exact dimensions of screenshot', +); +edit_subcmd.add_argument( + '-d', '--drop-shadow', + type=int, + metavar="", + help='Save the screenshot with a drop shadow of x pixels', +); +edit_subcmd.add_argument( + '-e', '--extension', + type=int, + metavar="", + help='Change image extension saved', +); +# Markup ==== +markup_subcmd = subcommands.add_parser( + "markup", help="Markup the latest screenshot in swappy"); +markup_subcmd.add_argument( + '-c', '--clipboard', + action='store_true', + help='Save the screenshot to your clipboard', +); +markup_subcmd.add_argument( + '--gimp', + action='store_true', + help='Edit via gimp, instead of swappy', +); +args = parser.parse_args(); + +# Second layer of parser checks +if args.screenshot_dir is not None: + DIR = args.screenshot_dir + +if not os.path.isdir(DIR) and os.path.exists(DIR): + print(f"Path `{DIR}` already exists and is not a directory") + exit(1) +elif not os.path.exists(DIR): + os.makedirs(DIR) + +match args.subcommand: + case "take": + take_subcommand(args) + pass + case "edit": + print("Edit is not yet ready for use") + pass + case "markup": + markup_latest(args)