94 lines
3.1 KiB
Python
94 lines
3.1 KiB
Python
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import scipy
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import gobject
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import gtk
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from system import dataset, plots
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class Project:
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def __init__(self,name="Testing"):
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self.data_tree = gtk.TreeStore(gobject.TYPE_STRING,
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gobject.TYPE_STRING,
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gobject.TYPE_PYOBJECT,gobject.TYPE_STRING,gobject.TYPE_STRING)
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self.name = name
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self.dim_names = []
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self._selection_observers = []
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self.current_data = None
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self.datasets = []
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self.sel_obj = dataset.Selection()
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def notify_selection_listeners(self):
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"""Notifies observers"""
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for observer in self._selection_observers:
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observer.selection_changed(self.get_selection())
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def set_selection(self,dim_name,selection):
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"""Sets a current selection and notify observers"""
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self.sel_obj.current_selection[dim_name] = set(selection)
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self.notify_selection_listeners()
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def get_selection(self):
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"""Returns the current selection object"""
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return self.sel_obj.current_selection
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def get_data_iter(self, obj):
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"""Retuns an iterator to data."""
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retval = [None]
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def is_obj(m, p, i, d):
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if obj == m.get_value(i, 2):
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d.append(i)
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return True
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self.data_tree.foreach(is_obj, retval)
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return retval[-1]
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def add_data(self, parent, data, fun='Function'):
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"""Adds a set of data and plots to the navigator.
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This method is usually called after a Function in a workflow
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has finished and returns its output."""
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parent_iter = self.get_data_iter(parent)
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it = self.data_tree_insert(parent_iter, fun, None, "grey","black")
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for d in data:
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if isinstance(d, dataset.Dataset):
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self.add_dataset(d)
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self.data_tree_insert(it, d.get_name(), d, "white", "blue")
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elif isinstance(d, plots.Plot):
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self.data_tree_insert(it, d.get_title(), d, "white", "dark green")
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d.set_selection_listener(self.set_selection)
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self._selection_observers.append(d)
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def data_tree_insert(self, parent, text, data, bgcolour,fontcolour):
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tree = self.data_tree
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it = tree.append(parent)
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tree.set_value(it, 0, text)
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tree.set_value(it, 1, type(data))
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tree.set_value(it, 2, data)
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tree.set_value(it, 3, bgcolour)
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tree.set_value(it, 4, fontcolour)
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return it
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def add_dataset(self,dataset):
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"""Appends a new Dataset to the project."""
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self.datasets.append(dataset)
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for dim_name in dataset.get_all_dims():
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if dim_name not in self.dim_names:
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self.dim_names.append(dim_name)
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self.sel_obj.current_selection[dim_name] = set()
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def object_at(self, path):
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"Returns the object at a given path in the tree."
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iter = self.get_iter(path)
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object = self.get_value(iter, 2)
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if object:
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object.show()
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return object
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def set_current_data(self, obj):
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self.current_data = obj
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