def __init__(self, _format, diagram, filename=None, **kwargs):
self.format = _format.upper()
self.diagram = diagram
self.fill = kwargs.get('fill', (0, 0, 0))
self.badgeFill = kwargs.get('badgeFill', 'pink')
self.filename = filename
self.shadow = self.shadow_colors[self.format.upper()]
if self.format == 'PNG' and kwargs.get('antialias'):
self.scale_ratio = 2
else:
self.scale_ratio = 1
self.drawer = imagedraw.create(self.format,
self.filename,
filters=['linejump'],
scale_ratio=self.scale_ratio,
**kwargs)
self.metrics = self.create_metrics(kwargs.get('basediagram', diagram),
drawer=self.drawer,
fontmap=kwargs.get('fontmap'))
if self.scale_ratio == 2:
self.metrics = AutoScaler(self.metrics,
scale_ratio=self.scale_ratio)
self.drawer.set_canvas_size(self.pagesize())
self.drawer.set_options(jump_radius=self.metrics.cellsize / 2)
