Python QtCore.QByteArray方法代碼示例

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def capture(self, fullScreen = False, filename = ''):
		if fullScreen:
			image = QApplication.primaryScreen().grabWindow(0)
		else:
			image = QImage(self.webView.mainFrame.contentsSize(), QImage.Format_ARGB32)
			painter = QPainter(image)
			self.webView.mainFrame.render(painter)
			painter.end()
		if filename:
			return image.save(filename)
		else:
			data = QByteArray()
			buffer = QBuffer(data)
			buffer.open(QBuffer.WriteOnly)
			image.save(buffer, 'PNG')
			return bytes(data.toBase64()).decode()

	# 打開開發者工具 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def resize_image(cover_image_raw):
    if isinstance(cover_image_raw, QtGui.QImage):
        cover_image = cover_image_raw
    else:
        cover_image = QtGui.QImage()
        cover_image.loadFromData(cover_image_raw)

    # Resize image to what literally everyone
    # agrees is an acceptable cover size
    cover_image = cover_image.scaled(
        420, 600, QtCore.Qt.IgnoreAspectRatio)

    byte_array = QtCore.QByteArray()
    buffer = QtCore.QBuffer(byte_array)
    buffer.open(QtCore.QIODevice.WriteOnly)
    cover_image.save(buffer, 'jpg', 75)

    cover_image_final = io.BytesIO(byte_array)
    cover_image_final.seek(0)
    return cover_image_final.getvalue() 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def __init__(self, *args, **kwargs) -> None:
        super().__init__(*args, **kwargs)

        self._stream_buffer = QByteArray()
        self._stream_buffer_start_index = -1
        self._network_manager = None  # type: QNetworkAccessManager
        self._image_request = None  # type: QNetworkRequest
        self._image_reply = None  # type: QNetworkReply
        self._image = QImage()
        self._image_rect = QRect()

        self._source_url = QUrl()
        self._started = False

        self._mirror = False

        self.setAntialiasing(True) 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def stop(self) -> None:
        self._stream_buffer = QByteArray()
        self._stream_buffer_start_index = -1

        if self._image_reply:
            try:
                try:
                    self._image_reply.downloadProgress.disconnect(self._onStreamDownloadProgress)
                except Exception:
                    pass

                if not self._image_reply.isFinished():
                    self._image_reply.close()
            except Exception:  # RuntimeError
                pass  # It can happen that the wrapped c++ object is already deleted.

            self._image_reply = None
            self._image_request = None

        self._network_manager = None

        self._started = False 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def _receive(self):
        """
        Called by the sockets readyRead signal. Not intended for outside use.
        While there are messages available read them and process them.
        Reading is reading of a QByteArray from the TCPSocket, un-compressing and de-serializing.
        """
        while self.socket.bytesAvailable() > 0:
            logger.info('socket will receive')
            # read a QByteArray using a data stream
            reader = QtCore.QDataStream(self.socket)
            bytearray = QtCore.QByteArray()
            reader >> bytearray

            # uncompress bytes from bytearray
            uncompressed = zlib.decompress(bytearray.data())

            # security validator (check for everything that we do not like (!!python)
            # TODO implement this

            # decode from utf-8 bytes to unicode and deserialize from yaml
            value = yaml.load(uncompressed.decode())

            logger.debug('socket received: %s', value)

            self.received.emit(value) 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def send(self, value):
        """
        Sends a message by serializing, compressing and wrapping to a QByteArray, then streaming over the TCP socket.

        :param value: The message to send.
        """
        if not self.is_connected():
            raise RuntimeError('Try to send on unconnected socket.')

        logger.debug('socket send: %s', value)
        # serialize value to yaml
        stream = StringIO()
        yaml.dump(value, stream)
        serialized = stream.getvalue()

        # encode to utf-8 bytes and compress
        compressed = zlib.compress(serialized.encode())

        # wrap in QByteArray
        bytearray = QtCore.QByteArray(compressed)

        # write using a data stream
        writer = QtCore.QDataStream(self.socket)
        writer.setVersion(QtCore.QDataStream.Qt_5_5)
        writer << bytearray 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def __init__(self, parent=None):
        super(DragButton, self).__init__(parent)

    # def mouseMoveEvent(self, event):
        # self.startDrag()
        # QtWidgets.QToolButton.mouseMoveEvent(self, event)

    # def startDrag(self):
        # if self.icon().isNull():
        #     return
        # data = QtCore.QByteArray()
        # stream = QtCore.QDataStream(data, QtCore.QIODevice.WriteOnly)
        # stream << self.icon()
        # mimeData = QtCore.QMimeData()
        # mimeData.setData("application/x-equipment", data)
        # drag = QtGui.QDrag(self)
        # drag.setMimeData(mimeData)
        # pixmap = self.icon().pixmap(24, 24)
        # drag.setHotSpot(QtCore.QPoint(12, 12))
        # drag.setPixmap(pixmap)
        # drag.exec_(QtCore.Qt.CopyAction) 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def UpdateListItem(self, updateTooltipPreview=False):
        """
        Updates the list item
        """
        if not hasattr(self, 'listitem'): return
        if self.listitem is None: return

        if updateTooltipPreview:
            # It's just like Qt to make this overly complicated. XP
            img = self.renderInLevelIcon()
            byteArray = QtCore.QByteArray()
            buf = QtCore.QBuffer(byteArray)
            img.save(buf, 'PNG')
            byteObj = bytes(byteArray)
            b64 = base64.b64encode(byteObj).decode('utf-8')

            self.listitem.setToolTip('<img src="data:image/png;base64,' + b64 + '" />')

        self.listitem.setText(self.ListString()) 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def loadResource(self, rtype, url):
        ret = super(TextBrowser, self).loadResource(rtype, url)
        # 加載圖片資源
        if rtype == QTextDocument.ImageResource:
            if ret:
                return ret
            if url.toString().startswith('irony'):  # 自定義的協議頭
                print('加載本地', '../Donate/zhifubao.png', url)
                return QImage('../Donate/zhifubao.png')  # 或者 QByteArray(open('../Donate/zhifubao.png', 'rb').read())
            elif url.toString().startswith('http'):  # 加載網絡圖片
                img, status = self.NetImages.get(url, [None, None])
                if url not in self.NetImages or status is None:
                    # 子線程下載
                    self.NetImages[url] = [None, 1]
                    print('download ', url)
                    Thread(target=self.downloadImage, args=(url,), daemon=True).start()
                elif img:
                    return img
        return ret 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def stop(self) -> None:
        Logger.log("w", "MJPEG stopping stream...")	
        self._stream_buffer = QByteArray()
        self._stream_buffer_start_index = -1

        if self._image_reply:
            try:
                try:
                    self._image_reply.downloadProgress.disconnect(self._onStreamDownloadProgress)
                except Exception:
                    pass

                if not self._image_reply.isFinished():
                    self._image_reply.close()
            except Exception as e:  # RuntimeError
                pass  # It can happen that the wrapped c++ object is already deleted.

            self._image_reply = None
            self._image_request = None

        self._network_manager = None

        self._started = False 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def data(self, index, role=QtCore.Qt.DisplayRole):
        if index.isValid():
            if(role==QtCore.Qt.DisplayRole):
                return self._data.values[index.row()][index.column()]
            else:
                # self._roleName 은 QHash(int, QByteArray)
                columnName = self._roleNames[role].data().decode('utf8')
                print('row {} col {} role {} columnName {} '.format(index.row(), index.column(), role, columnName))
                print(self._data.at[index.row(), columnName])
                return self._data.at[index.row(), columnName]
        return QVariant() 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def headerData(self, col, orientation, role):
        if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
            return self._data.columns[col]
        return None
        
    # return 값은 QHash(int, QByteArray) 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def roleNames(self):
        for index, name in enumerate(self._data.columns):
            self._roleNames[ QtCore.Qt.UserRole + index + 1] = QtCore.QByteArray(name.encode())
        return self._roleNames 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def __init__(self, geometry, win_id, parent=None):
        super().__init__(parent)
        self._geometry = QByteArray(geometry)
        self.win_id = win_id 

# 需要導入模塊: from PyQt5 import QtCore [as 別名]
# 或者: from PyQt5.QtCore import QByteArray [as 別名]
def retrieve_geometry(self, name):
        if name not in self._geometries:
            return None

        return QByteArray(bytes(self._geometries[name]))