Removed need to provide plots with project/workflow on creation, is instead injected by project itself when added to it.

system/plots.py

@@ -161,15 +161,12 @@ class LargeView (gtk.Frame):
 
 class Plot (gtk.Frame):
 
-    def __init__(self,project):
+    def __init__(self):
         gtk.Frame.__init__(self)
-        self.project = project
         self.mark_active(False)
         self.connect('button_press_event', self.on_button_press)
         self.sel_obj = None
         self.active = False
-        if project!=None: #its not an Emptyview
-            project.attach(self,'selection_update')
         
     def on_button_press(self, *rest):
 #        logger.log('debug', 'button pressed in plot')
@@ -182,12 +179,16 @@ class Plot (gtk.Frame):
             self.set_shadow_type(gtk.SHADOW_OUT)
         self.active = active
 
-    def update(self,project,key):
+    def update(self, key):
         pass
+
+    def set_project(self, project):
+        self.project = project
+        
     
 class EmptyView (Plot):
     def __init__(self):
-        Plot.__init__(self,None)
+        Plot.__init__(self)
         
         label = gtk.Label('No view')
         ebox = gtk.EventBox()
@@ -211,8 +212,8 @@ class EmptyView (Plot):
         
 
 class SinePlot(Plot):
-    def __init__(self,project):
-        Plot.__init__(self,project)
+    def __init__(self):
+        Plot.__init__(self)
         fig = Figure(figsize=(5,4), dpi=72)
         ax = fig.add_subplot(111)
         t = arange(0.0,3.0,0.01)
@@ -224,9 +225,8 @@ class SinePlot(Plot):
 
 
 class ScatterPlot(Plot):
-    def __init__(self,project,dataset,id_dim,sel_dim,id_1,id_2):
-        Plot.__init__(self,project)
-        self.project = project
+    def __init__(self, dataset, id_dim, sel_dim, id_1, id_2):
+        Plot.__init__(self)
         fig = Figure(figsize=(5,4), dpi=72)
         self.ax = ax = fig.add_subplot(111)
         self.current_dim = id_dim
@@ -272,8 +272,8 @@ class ScatterPlot(Plot):
         ids = [id for id,ind in self.dataset[self.current_dim].items() if ind in index]
         self.project.set_selection(self.current_dim,ids)
 
-    def update(self,project,key):
-        curr_sel = project.get_selection() # get selection object
+    def update(self, key):
+        curr_sel = self.project.get_selection() # get selection object
         ids = curr_sel[self.current_dim] # current identifiers
         
         index = [ind for id,ind in self.dataset[self.current_dim].items() if id in ids] #conversion to index
@@ -283,5 +283,3 @@ class ScatterPlot(Plot):
         self.ax.plot(self.xaxis_data,self.yaxis_data,'og')
         self.ax.plot(xdata_new,ydata_new,'or')
         self.canvas.draw()
-
-