AaronFiore/electrum
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parse QR async

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This commit is contained in:
Sander van Grieken
2022-03-29 17:28:04 +02:00
parent 756cd9706f
commit 1609fe8663
1 changed files with 30 additions and 25 deletions
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55
electrum/gui/qml/qeqr.py
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@@ -2,17 +2,16 @@ from PyQt5.QtCore import pyqtProperty, pyqtSignal, pyqtSlot, QObject, QUrl, QRec
from PyQt5.QtGui import QImage,QColor
from PyQt5.QtQuick import QQuickImageProvider
from electrum.logging import get_logger
from electrum.qrreader import get_qr_reader
from electrum.i18n import _
import asyncio
import qrcode
#from qrcode.image.styledpil import StyledPilImage
#from qrcode.image.styles.moduledrawers import *
from PIL import Image, ImageQt
from ctypes import *
import sys
from electrum.logging import get_logger
from electrum.qrreader import get_qr_reader
from electrum.i18n import _
class QEQR(QObject):
def __init__(self, text=None, parent=None):
@@ -47,9 +46,6 @@ class QEQR(QObject):
self.logImageStats(image)
self._parseQR(image)
self._busy = False
self.busyChanged.emit()
def logImageStats(self, image):
self._logger.info('width: ' + str(image.width()))
self._logger.info('height: ' + str(image.height()))
@@ -62,23 +58,32 @@ class QEQR(QObject):
img_crop_rect = self._get_crop(image, 360)
frame_cropped = image.copy(img_crop_rect)
# Convert to Y800 / GREY FourCC (single 8-bit channel)
# This creates a copy, so we don't need to keep the frame around anymore
frame_y800 = frame_cropped.convertToFormat(QImage.Format_Grayscale8)
async def co_parse_qr(image):
# Convert to Y800 / GREY FourCC (single 8-bit channel)
# This creates a copy, so we don't need to keep the frame around anymore
frame_y800 = image.convertToFormat(QImage.Format_Grayscale8)
self.frame_id = 0
# Read the QR codes from the frame
self.qrreader_res = self.qrreader.read_qr_code(
frame_y800.constBits().__int__(), frame_y800.byteCount(),
frame_y800.bytesPerLine(),
frame_y800.width(),
frame_y800.height(), self.frame_id
)
self.frame_id = 0
# Read the QR codes from the frame
self.qrreader_res = self.qrreader.read_qr_code(
frame_y800.constBits().__int__(),
frame_y800.byteCount(),
frame_y800.bytesPerLine(),
frame_y800.width(),
frame_y800.height(),
self.frame_id
)
if len(self.qrreader_res) > 0:
result = self.qrreader_res[0]
self._data = result
self.dataChanged.emit()
if len(self.qrreader_res) > 0:
result = self.qrreader_res[0]
self._data = result
self.dataChanged.emit()
self._busy = False
self.busyChanged.emit()
loop = asyncio.get_event_loop()
asyncio.run_coroutine_threadsafe(co_parse_qr(frame_cropped), loop)
def _get_crop(self, image: QImage, scan_size: int) -> QRect:
"""