def _getLatestImageStringFromFile(self, serialNo, chinBarImageString):
#dprint("_getLatestImageStringFromFile")
latestImageName = self._getLatestImageFilename(serialNo)
#dprint("_getLatestImageStringFromFile: ", latestImageName)
tries = 0
successful = False
while tries < 3 and not successful:
try:
image = Image.open(os.path.join(globals_.getUserDocumentsPath(), constants.APP_DIR, latestImageName))
except Exception, e:
# Don't know how we'd get here; perhaps the image hasn't been completely written.
#dprint("_getLatestImageStringFromFile: exception opening image")
#dprint("image exists?:",
# os.path.join(globals_.getUserDocumentsPath(), constants.APP_DIR, latestImageName),
# " ",
# os.path.exists(os.path.join(globals_.getUserDocumentsPath(), constants.APP_DIR, latestImageName)))
time.sleep(0.1)
else:
try:
# about 0.01 seconds
newImageString = image.tostring()
except Exception, e:
# I sometimes get an error about a broken PNG chunk here,
# and I've found that Image.open(...), image.tostring()
# works in this case, so go thru the loop again.
# This delay is just a guess; it could be appropriate when the image is
# still in the process of being created by the ScreenshotProcess.
time.sleep(0.1)
else:
def __init__(self, replayProcess, device, orientation):
self.replayProcess = replayProcess
self.device = device
self.orientation = orientation
chinBarImageName = constants.CHIN_BAR_IMAGE_TEMPLATE.format(ser=device.serialNo)
chinBarImagePath = os.path.join(globals_.getUserDocumentsPath(), constants.APP_DIR, chinBarImageName)
if os.path.exists(chinBarImagePath):
_image = cv.LoadImage(chinBarImagePath, cv.CV_LOAD_IMAGE_COLOR)
self.chinBarImageString = _image.tostring()
elif self.device.chinBarImageString:
self.chinBarImageString = self.device.chinBarImageString
else:
self.chinBarImageString = (chr(255) + chr(255) + chr(255)) * self.device.chinBarHeight * self.device.width
# Used by _dragSearch to know whether the previous event was a drag and we may need to continue
# dragging in the same direction.
self.previousInputType = None
self.previousDragStartRegion = None
self.previousDragRightUnits = None
self.previousDragDownUnits = None