#from http://www.ittc.ku.edu/~niehaus/classes/448-s04/448-standard/simple_gui_examples/sample.py
#$Id: sample.py,v 1.2 2004/03/17 04:29:31 mandava Exp $

#This sample program is written as a class. The constructor(the ___init__
#method) is called with a parent widget, to which it adds a
#number of child widgets. The constructor starts by creating a Frame widget.
#A frame is a simple container, and is in this case used to hold the
#button and entry widgets.

#use in idle to do code completion
##'''
##from Tkinter import *
##f = Frame(Tk())
##f.pack(padx=15,pady=15)
##
##etc...
##'''

from Tkinter import *
import tkMessageBox

class App:
    def __init__(self,parent):

        f = Frame(parent)
        
        self.fModelName = Frame(f)
        self.lblModelName = Label(self.fModelName, width=18, text="Model Class Name:", justify='left')    
        self.lblModelName.pack(side='left', anchor='w')
        self.svModelName = StringVar()
        self.entModelName = Entry(self.fModelName, width=30, text="fModelName", justify='left', textvariable=self.svModelName)
        self.entModelName.pack(side='left', anchor='w')
        self.fModelName.pack(fill=X, pady=5)
        
        self.fInstanceName = Frame(f)
        self.lblInstanceName = Label(self.fInstanceName, width=18, text="Model Instance Name:", justify='left')
        self.lblInstanceName.pack(side='left', anchor='w')
        self.svInstanceName = StringVar()
        self.entInstanceName = Entry(self.fInstanceName, width=30, text="fInstanceName", justify='left', textvariable=self.svInstanceName)
        self.entInstanceName.pack(side='left', anchor='w')
        self.fInstanceName.pack(fill=X, pady=5)

        self.fFieldDefinitions = LabelFrame(f)
        self.lblFieldDefinitions = Label(self.fFieldDefinitions, text="Field Definitions")    
        self.lblFieldDefinitions.pack()
        self.svFieldDefinitions = StringVar()
        self.txtFieldDefinitions = Text(self.fFieldDefinitions,height=15,width=72,background='white')
        self.txtFieldDefinitions.pack()
        self.fFieldDefinitions.pack(fill=X, pady=5)
        
        self.fButtons = LabelFrame(f)
        #self.btnPrint = Button(f, text="print",command=self.print_stuff)
        #self.btnPrint.pack(side='left', anchor='w',padx=10)
        self.btnReset = Button(f, text="reset",command=self.reset)
        self.btnReset.pack(side='left', anchor='w',padx=10)
        self.btnMake = Button(f, text="make",command=self.make)
        self.btnMake.pack(side='left', anchor='w',padx=10)
        self.btnExit = Button(f, text="exit", command=f.quit)
        self.btnExit.pack(side='left', anchor='w',padx=10)
        self.fButtons.pack(pady=10)

        f.pack(padx=10,pady=10)
        
##    def print_stuff(self):
##        print "self is to be printed" + self.modelName.get()

    def reset(self):
        self.svModelName.set('')
        self.svInstanceName.set('')
        self.txtFieldDefinitions.delete(1.0, END)

    def make(self):
        #tkMessageBox.showinfo("Joe Message", "I'm working on the make function")
        
        # get the strings mainParamS & modelsParamS
        f = open('mainParam.py', 'r'); mainParamS = f.read(); f.close()
        f = open('modelsParam.py', 'r'); modelsParamS = f.read(); f.close()
        
        #substitute the fieldDefinitions for the * (between the class defs) in the modelS regex pattern
        import re
        pattern = r"#beginFieldDefs*#endFieldDefs"
        replacement = r"beginFieldDefs\n" + reindent(txtFieldDefinitions.get(1.0, END), 2) + r"\n  #endFieldDefs"
        modelsS = re.sub(pattern, replacement, modelsS)
       
        #substitute the GUI arguments for the parameters in the strings
        mainS = mainParamS.replace('zyx_ModelClassName_xyz', self.entModelName.get())
        mainS = mainS.replace('zyx_ModelInstanceName_xyz', self.entInstanceName.get())
        modelsS = modelsParamS.replace('zyx_ModelClassName_xyz', self.entModelName.get()) # AS YET no instance names in modelsParam.py 
        
        #write the substituted strings
        f = open('main.py', 'w'); f.write(mainS); f.close()
        f = open('models.py', 'w'); f.write(modelsS); f.close()
       
    def reindent(self, s, numSpaces):
      s = string.split(s, '\n')
      s = [(numSpaces * ' ') + string.lstrip(line) for line in s]
      s = string.join(s, '\n')
      return s







root = Tk()
root.title('Model-View Maker')
app = App(root)

root.mainloop()