Factored out a mixin class for IC thresholding.

workflows/gobrowser.py

@@ -491,7 +491,7 @@ class PlotDagFunction(workflow.Function):
         ds = dataset.GraphDataset(networkx.adj_matrix(g),
                                   [('go-terms', g.nodes()), ('_go-terms', g.nodes())],
                                   name="DAG")
-        return [DagPlot(g)]
+        return [ThresholdDagPlot(g)]
 
     def get_network(self, terms, subtree='bp'):
         """Returns a DAG connecting the given terms by including their parents
@@ -559,12 +559,116 @@ class VolcanoPlot(plots.ScatterPlot):
                                    sel_dim_2='_p', **kw)
 
 
+class PlotThresholder:
+    """Mixin class for plots that needs to filter nodes within a threshold
+    range.
+    """
+    def __init__(self, text="x"):
+        """Constructor.
+
+        @param text: Name of the variable the threshold is on.
+        """
+        self._threshold_ds = None
+        self._add_spin_buttons(text)
+        self._sb_min.set_sensitive(False)
+        self._sb_max.set_sensitive(False)
+
+    def set_threshold_dataset(self, ds):
+        """Sets the dataset to threshold on.
+
+        @param ds: A dataset where one dimension corresponds to the select dimension
+        in the plot, and any other dimensions have length 1
+        """
+        self._threshold_ds = ds
+        self._sb_min.set_sensitive(True)
+        self._sb_max.set_sensitive(True)
+
+    def _add_spin_buttons(self, text):
+        """Adds spin buttons to the toolbar for selecting minimum and maximum
+        threshold values on information content."""
+        sb_min = gtk.SpinButton(digits=2)
+        sb_min.set_range(0, 100)
+        sb_min.set_value(0)
+        sb_min.set_increments(.1, 1.)
+        sb_min.connect('value-changed', self._on_value_changed)
+        self._sb_min = sb_min
+
+        sb_max = gtk.SpinButton(digits=2)
+        sb_max.set_range(0, 100)
+        sb_max.set_value(1)
+        sb_max.set_increments(.1, 1.)
+        sb_max.connect('value-changed', self._on_value_changed)
+        self._sb_max = sb_max
+
+        label = gtk.Label(" < %s < " % text)
+        hbox = gtk.HBox()
+        hbox.pack_start(sb_min)
+        hbox.pack_start(label)
+        hbox.pack_start(sb_max)
+        ti = gtk.ToolItem()
+        ti.set_expand(False)
+        ti.add(hbox)
+        sb_min.show()
+        sb_max.show()
+        label.show()
+        hbox.show()
+        ti.show()
+        self._toolbar.insert(ti, -1)
+        ti.set_tooltip(self._toolbar.tooltips, "Set threshold")
+        
+    def set_threshold(self, min, max):
+        """Sets min and max to the given values.
+        Updates the plot accordingly to show only values that have a
+        value within the boundaries. Other values are
+        also excluded from being selected from the plot.
+        @param ic_min Do not show nodes with IC below this value.
+        @param ic_max Do not show nodes with IC above this value.
+        """
+        ds = self._threshold_ds
+        if ds == None:
+            return
+        
+        icnodes = ds.existing_identifiers('go-terms', self.nodes)
+        icindices = ds.get_indices('go-terms', icnodes)
+        a = ravel(ds.asarray()[icindices])
+        good = set(array(icnodes)[(a>=min) & (a<=max)])
+
+        sizes = zeros(len(self.nodes))
+        visible = set()
+        for i, n in enumerate(self.nodes):
+            if n in good:
+                sizes[i] = 50
+                visible.add(n)
+            else:
+                sizes[i] = 0
+        self.visible = visible
+        
+        self.node_collection._sizes = sizes
+        self.canvas.draw()
+
+    def get_nodes_within_bounds(self):
+        """Get a list of all nodes within the bounds of the selection in the
+        seleted dataset.
+        """
+        pass
+
+    def filter_nodes(self, nodes):
+        """Filter a list of nodes and return only those that are within the
+        threshold boundaries."""
+        pass
+        
+    def _on_value_changed(self, sb):
+        """Callback on spin button value changes."""
+        min = self._sb_min.get_value()
+        max = self._sb_max.get_value()
+        self.set_threshold(min, max)
+
+        
 class DagPlot(plots.Plot):
     def __init__(self, graph, dim='go-terms', pos=None, nodecolor='b', nodesize=40,
                  with_labels=False, name='DAG Plot'):
 
         plots.Plot.__init__(self, name)
-        self._add_ic_spin_buttons()
         self.nodes = graph.nodes()
         self.graph = graph
         self._pos = pos
@@ -630,39 +734,6 @@ class DagPlot(plots.Plot):
         self.axes.set_frame_on(False)
         self.fig.subplots_adjust(left=0, right=1, bottom=0, top=1)
 
-    def _add_ic_spin_buttons(self):
-        """Adds spin buttons to the toolbar for selecting minimum and maximum
-        threshold values on information content."""
-        sb_min = gtk.SpinButton(digits=2)
-        sb_min.set_range(0, 100)
-        sb_min.set_value(0)
-        sb_min.set_increments(.1, 1.)
-        sb_min.connect('value-changed', self._on_ic_value_changed)
-        self._ic_sb_min = sb_min
-
-        sb_max = gtk.SpinButton(digits=2)
-        sb_max.set_range(0, 100)
-        sb_max.set_value(1)
-        sb_max.set_increments(.1, 1.)
-        sb_max.connect('value-changed', self._on_ic_value_changed)
-        self._ic_sb_max = sb_max
-
-        label = gtk.Label(" < IC < ")
-        hbox = gtk.HBox()
-        hbox.pack_start(sb_min)
-        hbox.pack_start(label)
-        hbox.pack_start(sb_max)
-        ti = gtk.ToolItem()
-        ti.set_expand(False)
-        ti.add(hbox)
-        sb_min.show()
-        sb_max.show()
-        label.show()
-        hbox.show()
-        ti.show()
-        self._toolbar.insert(ti, -1)
-        ti.set_tooltip(self._toolbar.tooltips, "Set information content threshold")
-        
     def _calc_pos(self, graph):
         """Calculates position for graph nodes using 'dot' layout."""
         gv_graph = networkx.DiGraph()
@@ -678,44 +749,7 @@ class DagPlot(plots.Plot):
                 pos[k] = v
         return pos
 
-    def set_ic_threshold(self, ic_min, ic_max):
+    def points_in_rect(self, x1, y1, x2, y2, key):
-        """Sets Information Content min and max to the given values.
-        Updates the plot accordingly to show only values that have an
-        information content within the boundaries. Other values are
-        also excluded from being selected from the plot.
-        @param ic_min Do not show nodes with IC below this value.
-        @param ic_max Do not show nodes with IC above this value.
-        """
-        ic = getattr(main.workflow, 'current_ic', None)
-        if ic == None:
-            print "no ic set"
-            return
-        
-        icnodes = ic.existing_identifiers('go-terms', self.nodes)
-        icindices = ic.get_indices('go-terms', icnodes)
-        a = ravel(ic.asarray()[icindices])
-        ic_good = set(array(icnodes)[(a>=ic_min) & (a<=ic_max)])
-
-        sizes = zeros(len(self.nodes))
-        visible = set()
-        for i, n in enumerate(self.nodes):
-            if n in ic_good:
-                sizes[i] = 50
-                visible.add(n)
-            else:
-                sizes[i] = 0
-        self.visible = visible
-        
-        self.node_collection._sizes = sizes
-        self.canvas.draw()
-        
-    def _on_ic_value_changed(self, sb):
-        """Callback on spin button value changes."""
-        ic_min = self._ic_sb_min.get_value()
-        ic_max = self._ic_sb_max.get_value()
-        self.set_ic_threshold(ic_min, ic_max)
-    
-    def rectangle_select_callback(self, x1, y1, x2, y2, key):
         ydata = self.yaxis_data
         xdata = self.xaxis_data
         
@@ -732,7 +766,12 @@ class DagPlot(plots.Plot):
             ids = self.visible.intersection([self.nodes[i] for i in index])
         else:
             ids = set([self.nodes[i] for i in index])
+        return ids
+        
+    def rectangle_select_callback(self, x1, y1, x2, y2, key):
+        ids = self.points_in_rect(x1, y1, x2, y2, key)
         ids = self.update_selection(ids, key)
+
         self.selection_listener(self.current_dim, ids)
 
     def lasso_select_callback(self, verts, key=None):
@@ -807,9 +846,34 @@ class DagPlot(plots.Plot):
         self.node_collection.set_array(map_vec)
         self.node_collection.set_clim(vec_min, vec_max)
         self.node_collection.update_scalarmappable() #sets facecolors from array
-        self._ic_sb_min.set_range(0, vec_max)
-        self._ic_sb_min.set_value(vec_min)
-        self._ic_sb_max.set_range(0, vec_max)
-        self._ic_sb_max.set_value(vec_max)
 
         self.canvas.draw()
+
+
+class ThresholdDagPlot(DagPlot, PlotThresholder):
+    def __init__(self, graph, dim='go-terms', pos=None, nodecolor='b', nodesize=40,
+                 with_labels=False, name='DAG Plot'):
+        DagPlot.__init__(self, graph, dim='go-terms', pos=None,
+                         nodecolor='b', nodesize=40,
+                         with_labels=False, name='DAG Plot')
+        PlotThresholder.__init__(self, "IC")
+
+    def rectangle_select_callback(self, x1, y1, x2, y2, key):
+        ids = self.points_in_rect(x1, y1, x2, y2, key)
+        ids = self.visible.intersection(ids)
+        ids = self.update_selection(ids, key)
+
+        self.selection_listener(self.current_dim, ids)
+        
+    def _update_color_from_dataset(self, ds):
+        DagPlot._update_color_from_dataset(self, ds)
+        self.set_threshold_dataset(ds)
+        a = ds.asarray()
+        a_max = max(a[a<inf])
+        a_min = min(a[a>-inf])
+        self._sb_min.set_range(0, a_max)
+        self._sb_min.set_value(a_min)
+        self._sb_max.set_range(0, a_max)
+        self._sb_max.set_value(a_max)
+
+