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?? ..
?? __init__.py(241 B)
?? __pycache__
?? about.py(20 B)
?? abstractdisplay.py(12.29 KB)
?? display.py(3.18 KB)
?? examples
?? py.typed(0 B)
?? smartdisplay.py(2.6 KB)
?? util.py(486 B)
?? xauth.py(1.14 KB)
?? xephyr.py(1.6 KB)
?? xvfb.py(1.9 KB)
?? xvnc.py(1.87 KB)

Editing: smartdisplay.py

import logging
import time

from PIL import Image, ImageChops
from PIL.ImageGrab import grab

from pyvirtualdisplay import Display

log = logging.getLogger(__name__)

class DisplayTimeoutError(Exception):
    pass

def autocrop(im, bgcolor):
    """Crop borders off an image.

:param im: Source image.
    :param bgcolor: Background color, using either a color tuple.
    :return: An image without borders, or None if there's no actual content in the image.
    """
    if im.mode != "RGB":
        im = im.convert("RGB")
    bg = Image.new("RGB", im.size, bgcolor)
    diff = ImageChops.difference(im, bg)
    bbox = diff.getbbox()
    if bbox:
        return im.crop(bbox)
    return None  # no contents

class SmartDisplay(Display):
    def autocrop(self, im):
        """Crop borders off an image.

:param im: Source image.
        :return: An image without borders, or None if there's no actual content in the image.
        """
        return autocrop(im, self._bgcolor)

def grab(self, autocrop=True):
        # TODO: use Xvfb fbdir option for screenshot
        img = grab(xdisplay=self.new_display_var)

if autocrop:
            img = self.autocrop(img)
        return img

def waitgrab(self, timeout=60, autocrop=True, cb_imgcheck=None):
        """start process and create screenshot.
        Repeat screenshot until it is not empty and
        cb_imgcheck callback function returns True
        for current screenshot.

:param autocrop: True -> crop screenshot
        :param timeout: int
        :param cb_imgcheck: None or callback for testing img,
                            True = accept img,
                            False = reject img
        """
        t = 0
        sleep_time = 0.3  # for fast windows
        repeat_time = 0.5
        while 1:
            log.debug("sleeping %s secs" % str(sleep_time))
            time.sleep(sleep_time)
            t += sleep_time
            img = self.grab(autocrop=False)
            img_crop = self.autocrop(img)
            if autocrop:
                img = img_crop
            if img_crop:
                if not cb_imgcheck:
                    break
                if cb_imgcheck(img):
                    break
            sleep_time = repeat_time
            repeat_time += 0.5  # progressive
            if t > timeout:
                msg = "Timeout! elapsed time:%s timeout:%s " % (t, timeout)
                raise DisplayTimeoutError(msg)
                # break

log.debug("screenshot is empty, next try..")
        assert img
        #        if not img:
        #            log.debug('screenshot is empty!')
        return img

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