#!/usr/bin/env python
#================================================================
# scrolledlisttest: Test driver for ScrolledList
#
# For documentation, see:
#   http://www.nmt.edu/tcc/help/lang/python/examples/scrolledlist/
#----------------------------------------------------------------

from Tkinter import *
import scrolledlist

class Application(Frame):
    """GUI for scrolledlisttest
    """

    def __init__ ( self ):
        """Constructor for the Application class.
        """
        Frame.__init__ ( self, None )
        self.grid()
        self.__createWidgets()
        self.__tests()

    def __createWidgets ( self ):
        """Lay out the widgets.
        """
        self.sbox = scrolledlist.ScrolledList ( self,
            width=20, height=10, hscroll=1,
            callback=self.__pickHandler )
        self.sbox.grid ( row=0, column=0 )

        self.quitButton  =  Button ( self, text="Quit",
            command=self.quit )
        self.quitButton.grid ( row=1, column=0, columnspan=99,
            sticky=E+W, ipadx=5, ipady=5 )

    def __pickHandler ( self, linex ):
        """Handler for user clicks on lines in the listbox.
        """
        print "Click on line %d, '%s'" % (linex, self.sbox[linex])

    def __tests ( self ):
        """Initial testing of the ScrolledList widget.
        """
        print "Initial size is", self.sbox.count()
        print "Add alpaca, buffalo, eagle:"
        self.sbox.append ( "alpaca" )
        self.sbox.append ( "buffalo" )
        self.sbox.append ( "eagle" )
        print "Size is now", self.sbox.count()
        print "Clear listbox:"
        self.sbox.clear()
        print "Size is now", self.sbox.count()
        print "Add alpaca, buffalo, eagle:"
        self.sbox.append ( "alpaca" )
        self.sbox.append ( "buffalo" )
        self.sbox.append ( "eagle" )
        print "Insert cachalot"
        self.sbox.insert ( 2, "cachalot" )
        print "Size is now", self.sbox.count()
        print "Delete buffalo:"
        self.sbox.delete ( 1 )
        print "Size is now", self.sbox.count()
        print "Insert bunches o stuff"
        self.sbox.append ( "finch" )
        self.sbox.append ( "goshawk" )
        self.sbox.append ( "harrier" )
        self.sbox.append ( "indigobird" )
        self.sbox.append ( "jabiru" )
        self.sbox.append ( "kingfisher" )
        self.sbox.append ( "Middendorff's grasshopper-warbler" )
        self.sbox.append ( "merlin" )
        self.sbox.append ( "northern flicker" )
        self.sbox.append ( "ovenbird" )
        self.sbox.append ( "parula" )
        print "Size is now", self.sbox.count()
#================================================================
# Main program
#----------------------------------------------------------------

app  =  Application()
app.master.title ( "scrolledlisttest" )
app.mainloop()