def saveExtra(self, picture, file_name, file_format):
rect = picture.boundingRect()
pix = QImage(rect.size(), QImage.Format_ARGB32)
pix.fill(QColor(0, 0, 0, 0).rgba())
paint = QPainter()
paint.begin(pix)
paint.drawPicture(rect.topLeft() * -1, picture)
paint.end()
pix.save(file_name, file_format)
def saveExtra(self, picture, file_name, file_format):
rect = picture.boundingRect()
pix = QImage(rect.size(), QImage.Format_ARGB32)
pix.fill(QColor(0, 0, 0, 0).rgba())
paint = QPainter()
paint.begin(pix)
paint.drawPicture(rect.topLeft()*-1, picture)
paint.end()
pix.save(file_name, file_format)
def embed(im):
"""Converts a QImage or QPicture object into an ipython Image object for
embedding into an ipython notebook.
"""
if isinstance(im, QPicture):
pic = im
im = QImage(im.width(), im.height(), QImage.Format_ARGB32_Premultiplied)
p = QPainter()
p.begin(im)
p.drawPicture(0, 0, pic)
p.end()
w = QImageWriter()
buf = QBuffer()
buf.open(buf.WriteOnly)
w.setFormat("png")
w.setDevice(buf)
w.write(im)
return Image(data=str(buf.buffer()), format="png", embed=True)
