def restore_layers(self, layers, context):
""" Restore a list of glue-serialized layer dicts """
for layer in layers:
c = lookup_class(layer.pop('_type'))
props = dict((k, v if k == 'stretch' else context.object(v))
for k, v in layer.items())
l = props['layer']
if issubclass(c, ScatterLayerBase):
l = self.add_scatter_layer(l)
elif issubclass(c, RGBImageLayerBase):
r = props.pop('r')
g = props.pop('g')
b = props.pop('b')
self.display_data = l
self.display_attribute = r
l = self.rgb_mode(True)
l.r = r
l.g = g
l.b = b
elif issubclass(c, (ImageLayerBase, SubsetImageLayerBase)):
if isinstance(l, Data):
self.set_data(l)
l = self.add_layer(l)
else:
raise ValueError("Cannot restore layer of type %s" % l)
l.properties = props
def lookup_class_with_patches(name):
"""
A wrapper to lookup_class that also patches paths to ensure
backward-compatibility when functions/classes are moved around.
"""
while name in PATH_PATCHES:
name = PATH_PATCHES[name]
return lookup_class(name)
def restore_layers(self, layers, context):
for layer in layers:
lcls = lookup_class(layer.pop('_type'))
if lcls != HistogramLayerArtist:
raise ValueError("Cannot restore layers of type %s" % lcls)
data_or_subset = context.object(layer.pop('layer'))
result = self.add_layer(data_or_subset)
result.properties = layer
def restore_layers(self, layers, context):
""" Re-generate a list of plot layers from a glue-serialized list"""
for l in layers:
cls = lookup_class(l.pop('_type'))
if cls != ScatterLayerArtist:
raise ValueError("Scatter client cannot restore layer of type "
"%s" % cls)
props = dict((k, context.object(v)) for k, v in l.items())
layer = self.add_layer(props['layer'])
layer.properties = props
