Created new workflow for showing information about a dataset as a view.

workflows/go_workflow.py

@@ -17,6 +17,7 @@ class EinarsWorkflow (Workflow):
         load = Stage('load', 'Load Data')
         load.add_function(Function('load', 'Load Microarrays'))
         load.add_function(TestDataFunction())
+        load.add_function(DatasetInfoFunction())
         self.add_stage(load)
 
         preproc = Stage('preprocess', 'Preprocessing')
@@ -99,3 +100,37 @@ class TestDataFunction(Function):
         X = dataset.Dataset(x,[axis_0,axis_1])
         return [X]
 
+
+class DatasetInfoFunction(Function):
+    def __init__(self):
+        Function.__init__(self, 'data_info', 'Show information')
+
+    def run(self, data):
+        if data:
+            logger.log('notice', 'Generating view for %s.' % data.get_name())
+            return [DatasetInfoView(data)]
+        else:
+            logger.log('notice', 'Not generating view... no data.')
+            return []
+
+
+class DatasetInfoView(plots.Plot):
+    def __init__(self, data):
+        plots.Plot.__init__(self, None)
+        
+        buf = gtk.TextBuffer()
+        buf_iter = buf.get_start_iter()
+        buf.insert(buf_iter, "Data: %s\n\n" % data.get_name())
+        buf.insert(buf_iter, "Dimensions: ")
+
+        dims = []
+        for name in data.get_dim_names():
+            dims.append((name, data.dims[data._dim_num[name]]))
+        
+        buf.insert(buf_iter, ", ".join(["%s (%d)" % dim for dim in dims]))
+
+        area = gtk.TextView(buf)
+        area.connect('button_press_event', self.on_button_press)
+        area.set_editable(False)
+        self.add(area)
+        area.show()