doomcc/dcc/ss.py

from tkinter import messagebox
import dcc.config
import dcc.doom_base
import sys
import wand.display
import wand.image

class SS(dcc.doom_base.WadMap):
	def get_parser(self, prog_name):
		parser = super().get_parser(prog_name)
		parser.add_argument("-g", "--gravity", default="center")
		parser.add_argument("-y", "--yolo", action="store_true")
		return parser

	def take_action(self, parsed_args):
		def try_screenshot():
			with wand.image.Image(width=dcc.config.THUMB_WIDTH, height=dcc.config.THUMB_HEIGHT, pseudo="x:") as img:
				img.reset_coords()
				if img.size[0] < dcc.config.THUMB_WIDTH or img.size[1] < dcc.config.THUMB_HEIGHT:
					if not messagebox.askretrycancel(title="DCC", message="Image too small.  Try again?"):
						sys.exit("Gave up trying to select an image.")
					return False
				img.crop(width=dcc.config.THUMB_WIDTH,height=dcc.config.THUMB_HEIGHT,gravity=parsed_args.gravity)
				img.reset_coords()
				if not parsed_args.yolo:
					wand.display.display(img)
					accepted = messagebox.askyesnocancel(title="DCC", message="Is this image acceptable?")
					if accepted is None:
						sys.exit("Gave up on image verification")
					if not accepted:
						return False
				img.save(filename=self.base_thumb_path())	
				return True

		while not try_screenshot():
			pass