Source Code for Module simulation.MainWindow

  1  # -*- coding: utf-8 -*- 
  2   
  3  import Tkinter 
  4   
  5 -class MainWindow(object): 
  6      """Main window of application.""" 
  7   
  8 -    def __init__(self,system,controllers,processes): 
  9          self.system = system 
 10          self.root = Tkinter.Tk() 
 11          self.root.title("Inverted Pendulum") 
 12          self.root.minsize(400,200) 
 13   
 14          self.controller_nr = Tkinter.IntVar(0) 
 15          self.controllers = controllers 
 16          def Controller_Changed(name,index,mode): 
 17              self.Controller_Changed() 
 18          self.controller_nr.trace_variable('w',Controller_Changed) 
 19   
 20          self.process_nr = Tkinter.IntVar(0) 
 21          self.processes = processes 
 22          def Process_Changed(name,index,mode): 
 23              self.Process_Changed() 
 24          self.process_nr.trace_variable('w',Process_Changed) 
 25   
 26          menubar = Tkinter.Menu(self.root) 
 27   
 28          file_menu = Tkinter.Menu(menubar,tearoff=0) 
 29          file_menu.add_command(label="Quit",underline=0,command=self.File_Quit,accelerator="Ctrl+Q") 
 30          menubar.add_cascade(label="File",underline=0,menu=file_menu) 
 31          self.root.bind('<Control-q>',self.File_Quit) 
 32   
 33          self.run_menu = Tkinter.Menu(menubar,tearoff=0) 
 34          self.run_menu.add_command(label="Start", command=self.Run_Start,accelerator="F5") 
 35          self.run_menu.add_command(label="Step", command=self.Run_Step,accelerator="F11") 
 36          self.run_menu.add_command(label="Stop", command=self.Run_Stop,accelerator="Shift+F5") 
 37          menubar.add_cascade(label="Run",underline=0,menu=self.run_menu) 
 38          self.root.bind('<F5>',self.Run_Start) 
 39          self.root.bind('<F11>',self.Run_Step) 
 40          self.root.bind('<Shift-F5>',self.Run_Stop) 
 41   
 42          process_menu = Tkinter.Menu(menubar,tearoff=0) 
 43          process_menu.add_command(label="View",underline=0, command=self.Process_View,accelerator="V") 
 44          self.root.bind('<v>',self.Process_View) 
 45          i = 0 
 46          for process in processes: 
 47              process_menu.add_separator() 
 48              process_menu.add_radiobutton(label=process[0],underline=0, variable=self.process_nr,value=i) 
 49              if process[2]: 
 50                  # needed to save the current value of process 
 51                  def Show(process=process): 
 52                      process[2](process[1]) 
 53                  process_menu.add_command(label="... Parameter",underline=4, command=Show) 
 54              i = i + 1 
 55          menubar.add_cascade(label="Process",underline=0,menu=process_menu) 
 56   
 57          controller_menu = Tkinter.Menu(menubar,tearoff=0) 
 58          i = 0 
 59          for controller in controllers: 
 60              controller_menu.add_radiobutton(label=controller[0],underline=0, variable=self.controller_nr,value=i) 
 61              i = i + 1 
 62          menubar.add_cascade(label="Controller",underline=0,menu=controller_menu) 
 63   
 64   
 65          help_menu = Tkinter.Menu(menubar,tearoff=0) 
 66          help_menu.add_command(label="About",underline=0, command=self.Help_About,accelerator="F1") 
 67          menubar.add_cascade(label="Help",underline=0,menu=help_menu) 
 68          self.root.bind('<F1>',self.Help_About) 
 69   
 70          self.controller_nr.set(0) 
 71          self.process_nr.set(0) 
 72   
 73          self.root.config(menu=menubar) 
 74           
 75          Tkinter.Label(self.root,text= 
 76  """ 
 77  The following keys are defined: 
 78   
 79  Ctrl+Q   Exit 
 80  V         Show visualization 
 81  F5        Start simulation 
 82  Shift+F5  Stop simulation 
 83  F11       Single step of simulation 
 84  """,justify=Tkinter.LEFT).pack() 
 85   
 86          self.root.mainloop() 
 87   
 88      # menu callbacks 
 89 -    def File_Quit(self,event=None): 
 90          self.root.quit() 
 91   
 92 -    def Run_Start(self,event=None): 
 93          self.system.start() 
 94   
 95 -    def Run_Stop(self,event=None): 
 96          self.system.stop() 
 97   
 98 -    def Run_Step(self,event=None): 
 99          self.system.step() 
100   
101 -    def Process_View(self,event=None): 
102          import ProcessView 
103          ProcessView.Open(self.system) 
104   
105 -    def Help_About(self,event=None): 
106          import About 
107          About.Open() 
108   
109 -    def Controller_Changed(self): 
110          nr = self.controller_nr.get() 
111          print "Set controller %d: %s %s" % (nr,self.controllers[nr][0],self.controllers[nr][1]) 
112          self.system.controller = self.controllers[nr][1] 
113   
114 -    def Process_Changed(self): 
115          nr = self.process_nr.get() 
116          print "Set process %d: %s %s" % (nr,self.processes[nr][0],self.processes[nr][1]) 
117          self.system.process = self.processes[nr][1] 
118