def set_clipboard_image(self):
"""Export the formatted output to an image and store it in the
clipboard.
The image stored in the clipboard is a PNG file with alpha
transparency.
"""
div = self.view.page().mainFrame().findFirstElement('.output')
images = {}
for background in (Qt.transparent, Qt.white):
image = QImage(div.geometry().size(),
QImage.Format_ARGB32_Premultiplied)
image.fill(background)
painter = QPainter(image)
div.render(painter)
painter.end()
images[background] = image
# Windows needs this buffer hack to get alpha transparency in
# the copied PNG.
buffer_ = QBuffer()
buffer_.open(QIODevice.WriteOnly)
images[Qt.transparent].save(buffer_, 'PNG')
buffer_.close()
data = QMimeData()
data.setData('PNG', buffer_.data())
data.setImageData(images[Qt.white])
QApplication.clipboard().setMimeData(data)
def _drag_image ( self, image ):
mime_data = QMimeData()
mime_data.setImageData( image )
return mime_data
