Python PyQt4.QtCore 模块，QBuffer() 实例源码

我们从Python开源项目中，提取了以下25个代码示例，用于说明如何使用PyQt4.QtCore.QBuffer()。

项目：imagepaste 作者：robinchenyu | 项目源码 | 文件源码

def fromqimage(im):
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：Projects 作者：it2school | 项目源码 | 文件源码

def fromqimage(im):
    """
    :param im: A PIL Image object, or a file name
    (given either as Python string or a PyQt string object)
    """
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：workflows.kyoyue 作者：wizyoung | 项目源码 | 文件源码

def fromqimage(im):
    """
    :param im: A PIL Image object, or a file name
    (given either as Python string or a PyQt string object)
    """
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：ascii-art-py 作者：blinglnav | 项目源码 | 文件源码

def fromqimage(im):
    """
    :param im: A PIL Image object, or a file name
    (given either as Python string or a PyQt string object)
    """
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：radar 作者：amoose136 | 项目源码 | 文件源码

def fromqimage(im):
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：WXBotForPi 作者：nemoTyrant | 项目源码 | 文件源码

def fromqimage(im):
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：Bigglesworth 作者：MaurizioB | 项目源码 | 文件源码

def __init__(self, waveobj_list, *args, **kwargs):
        QtCore.QBuffer.__init__(self, *args, **kwargs)
        self.waveobj_list = waveobj_list

        self.single_data_list = [QtCore.QByteArray() for b in xrange(64)]
        self.multi_data = QtCore.QByteArray()
        self.multiplier = 6
        self.ratio = 1. / 44100 * 128 * self.multiplier * 1000000

        for wave_obj in waveobj_list:
            wave_obj.changed.connect(self.update)
            wave_obj.selected.connect(self.setCurrentWave)
            self.update(wave_obj)

        self.currentWave = 0
        self.current_data = self.single_data_list[0]
        self.start = 0
        self.delta = 256
        self.full_mode = False
        self.open(QtCore.QIODevice.ReadOnly)

项目：aws_lambda_backup_s3 作者：ogckw | 项目源码 | 文件源码

def fromqimage(im):
    """
    :param im: A PIL Image object, or a file name
    (given either as Python string or a PyQt string object)
    """
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：teleport 作者：eomsoft | 项目源码 | 文件源码

def fromqimage(im):
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：teleport 作者：eomsoft | 项目源码 | 文件源码

def fromqimage(im):
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：face_rekognition 作者：cnidus | 项目源码 | 文件源码

def fromqimage(im):
    """
    :param im: A PIL Image object, or a file name
    (given either as Python string or a PyQt string object)
    """
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：alfred-image-utilities 作者：danielecook | 项目源码 | 文件源码

def fromqimage(im):
    """
    :param im: A PIL Image object, or a file name
    (given either as Python string or a PyQt string object)
    """
    buffer = QBuffer()
    buffer.open(QIODevice.ReadWrite)
    # preserve alha channel with png
    # otherwise ppm is more friendly with Image.open
    if im.hasAlphaChannel():
        im.save(buffer, 'png')
    else:
        im.save(buffer, 'ppm')

    b = BytesIO()
    try:
        b.write(buffer.data())
    except TypeError:
        # workaround for Python 2
        b.write(str(buffer.data()))
    buffer.close()
    b.seek(0)

    return Image.open(b)

项目：imagepaste 作者：robinchenyu | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：Projects 作者：it2school | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：workflows.kyoyue 作者：wizyoung | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：ascii-art-py 作者：blinglnav | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：radar 作者：amoose136 | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：WXBotForPi 作者：nemoTyrant | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：pyDashboard 作者：jtsmith2 | 项目源码 | 文件源码

def wxfinished(self):
        if self.wxreply.error() != QNetworkReply.NoError:
            #print "get radar error "+self.myname+":"+str(self.wxreply.error())
            self.lastwx = 0
            return
        #print "radar map received:"+self.myname+":"+time.ctime()
        self.wxmovie.stop()
        self.wxdata = QtCore.QByteArray(self.wxreply.readAll())
        self.wxbuff = QtCore.QBuffer(self.wxdata)
        self.wxbuff.open(QtCore.QIODevice.ReadOnly)
        mov = QMovie(self.wxbuff, 'GIF')
        #print "radar map frame count:"+self.myname+":"+str(mov.frameCount())
        if mov.frameCount() > 2:
            self.lastwx = time.time()
        else:
            # radar image retreval failed
            self.lastwx = 0
            # retry in 5 seconds
            QtCore.QTimer.singleShot(5*1000, self.getwx)
            return
        self.wxmovie = mov
        if self.satellite:
            self.setMovie( self.wxmovie)
        else:
            self.wwx.setMovie( self.wxmovie)
        if self.parent().isVisible():
            self.wxmovie.start()

项目：Bigglesworth 作者：MaurizioB | 项目源码 | 文件源码

def play_toggle(self, state):
        if not self.stream: return
        if not state:
            self.output.stop()
            self.pause_btn.setEnabled(False)
            self.pause_btn.setChecked(False)
            if self.output:
                try:
                    self.output.deleteLater()
                except:
                    pass
            return
        format = QtMultimedia.QAudioFormat()
        format.setChannels(self.stream.getnchannels())
        format.setFrequency(self.stream.getframerate())
        format.setSampleSize(self.stream.getsampwidth()*8)
        format.setCodec("audio/pcm")
        format.setByteOrder(QtMultimedia.QAudioFormat.LittleEndian)
        format.setSampleType(QtMultimedia.QAudioFormat.SignedInt)
        if self.output:
            try:
                self.output.deleteLater()
            except:
                pass
        self.output = QtMultimedia.QAudioOutput(format, self)
        self.output.stateChanged.connect(self.stop)
        buffer = QtCore.QBuffer(self)
        data = QtCore.QByteArray()
        self.stream.rewind()
        data.append(self.stream.readframes(float('inf')))
        buffer.setData(data)
        buffer.open(QtCore.QIODevice.ReadOnly)
        buffer.seek(0)
        self.output.start(buffer)
        self.pause_btn.setEnabled(True)

项目：aws_lambda_backup_s3 作者：ogckw | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：teleport 作者：eomsoft | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：teleport 作者：eomsoft | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：face_rekognition 作者：cnidus | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)

项目：alfred-image-utilities 作者：danielecook | 项目源码 | 文件源码

def fromqpixmap(im):
    return fromqimage(im)
    # buffer = QBuffer()
    # buffer.open(QIODevice.ReadWrite)
    # # im.save(buffer)
    # # What if png doesn't support some image features like animation?
    # im.save(buffer, 'ppm')
    # bytes_io = BytesIO()
    # bytes_io.write(buffer.data())
    # buffer.close()
    # bytes_io.seek(0)
    # return Image.open(bytes_io)