def write_image(cls, filename, scene):
# export via svg to temp file then print that
# NOTE: can't use NamedTemporaryFile with delete = True
# (see https://bugs.python.org/issue14243)
fd, tmpname = tempfile.mkstemp(suffix=".svg")
os.close(fd)
try:
SvgFormat.write_image(tmpname, scene)
with open(tmpname, "rb") as f:
svgcontents = f.read()
finally:
os.unlink(tmpname)
svgrend = QtSvg.QSvgRenderer(QtCore.QByteArray(svgcontents))
vbox = svgrend.viewBox()
if not vbox.isValid():
size = svgrend.defaultSize()
else:
size = vbox.size()
writer = QtGui.QPdfWriter(filename)
writer.setPageSizeMM(QtCore.QSizeF(size) * 0.282)
painter = QtGui.QPainter(writer)
svgrend.render(painter)
painter.end()
del svgrend
del painter
def _get_buffer(size, filename):
buffer = QtGui.QPdfWriter(filename)
dpi = QApplication.desktop().logicalDpiX()
buffer.setResolution(dpi)
buffer.setPageMargins(QMarginsF(0, 0, 0, 0))
buffer.setPageSizeMM(QtCore.QSizeF(size.width(), size.height()) / dpi * 25.4)
return buffer
def _get_buffer(size, filename):
buffer = QtGui.QPdfWriter(filename)
dpi = int(QApplication.primaryScreen().logicalDotsPerInch())
buffer.setResolution(dpi)
buffer.setPageMargins(QMarginsF(0, 0, 0, 0))
pagesize = QtCore.QSizeF(size.width(), size.height()) / dpi * 25.4
buffer.setPageSize(
QtGui.QPageSize(pagesize, QtGui.QPageSize.Millimeter))
return buffer
