SEletion from listbox implemented

JFSphoto.py

@@ -309,11 +309,8 @@ class Jfsphoto (object):
         self.fig = plt.Figure(figsize=(8,4),dpi=100)
         self.ax1 = self.fig.add_subplot(111)
 
-        t = arange(0.0, 3.0, 0.01)
-        s = sin(2*pi*t)
-        self.ax1.plot(t, s, linewidth=0.6)
         
-        self.calculate()
+        
 
         self.canvas = FigureCanvasTkAgg(self.fig, master = self.ctr_mid)
         self.canvas._tkcanvas.pack(side = tk.TOP, fill = tk.BOTH, expand = 1)   
@@ -334,13 +331,24 @@ class Jfsphoto (object):
         self.scrollbar = tk.Scrollbar(master=self.ctr_right) 
         self.listbox.config(yscrollcommand =self.scrollbar.set) 
         self.scrollbar.config(command = self.listbox.yview) 
-        self.kbtn1 = tk.Button(master=self.ctr_right,text="show")
+        self.kbtn1 = tk.Button(master=self.ctr_right,text="show",command=self.show_selected)
         self.kbtn1.grid(row=14,column=0,sticky="w")
 
+        if self.calculate() :
+            self.show_first_look()
+        else:
+            t = arange(0.0, 3.0, 0.01)
+            s = sin(2*pi*t)
+            self.ax1.plot(t, s, linewidth=0.6)
+
         win.focus_set()
         win.grab_set()
         win.wait_window()
 
+    def show_selected(self):
+        self.col_list = [self.listbox.get(i) for i in self.listbox.curselection()]
+        self.look()
+
     def calculate(self):
         self.ok.set(0)
         if 'baseline' in self.df.columns:
@@ -350,6 +358,9 @@ class Jfsphoto (object):
                 self.do_absorption(xx)
             for xx in self.col_list:
                 self.do_transmission(xx)
+            return True
+        else:
+            return False
 
     def get_kin_list(self):
         self.col_list = list(self.df.columns.values.tolist())
@@ -361,9 +372,7 @@ class Jfsphoto (object):
         self.col_list.remove('darkline')
         self.col_list.remove('nmscale')
 
-    def kini(self):
-        self.load_kinetics("kini.dat")
-        self.calculate()      
+    def show_first_look(self):
         self.ax1.clear()
         for xx in self.col_list:
             self.df.plot(x = 'nmscale',y = xx, linewidth=0.6,ax=self.ax1)
@@ -371,6 +380,12 @@ class Jfsphoto (object):
         self.ok.set(1)
         self.canvas.draw()
 
+    def kini(self):
+        self.load_kinetics("kini.dat")
+        self.calculate()   
+        self.show_first_look()   
+        
+
     def do_get_range(self):
         self.right = 0
         self.left = 0