* fluent, *.py: Data and plots returned from functions will now show up in

the navigator window.

system/project.py

@@ -1,8 +1,15 @@
 import dataset
+import plots
 import scipy
+import gobject
+import gtk
 
 class Project:
     def __init__(self,name="Testing"):
+        self.data_tree = gtk.TreeStore(gobject.TYPE_STRING, 
+                                       gobject.TYPE_STRING, 
+                                       gobject.TYPE_PYOBJECT)
+
         self.name = name
         self.dim_names = []
         self._observers = {}
@@ -39,6 +46,26 @@ class Project:
         """Returns the current selection object"""
         return self.sel_obj.current_selection
     
+    def add_data(self, parent, data):
+        """Adds a set of data and plots to the navigator.
+
+        This method is usually called after a Function in a workflow
+        has finished and returns its output."""
+        for d in data:
+            if isinstance(d, dataset.Dataset):
+                self.add_dataset(d)
+                self.data_tree_insert(None, 'data', d)
+            elif isinstance(d, plots.Plot):
+#                self.add_view(d)
+                self.data_tree_insert(None, 'view', d)
+
+    def data_tree_insert(self, parent, text, data):
+        tree = self.data_tree
+        iter = tree.append(parent)
+        tree.set_value(iter, 0, text)
+        tree.set_value(iter, 1, type(data))
+        tree.set_value(iter, 2, data)
+
     def add_dataset(self,dataset):
         """Appends a new Dataset to the project."""
         self.datasets.append(dataset)
@@ -52,6 +79,11 @@ class Project:
             dim_name = dim_name + "_t" 
         return dim_name
         
-
-
+    def object_at(self, path):
+        "Returns the object at a given path in the tree."
+        iter = self.get_iter(path)
+        object = self.get_value(iter, 2)
+        if object:
+            object.show()
+        return object