comp3321 NSA Python Training Document by NSA

Author:NSA
Language: eng
Format: epub
Tags: python, training

#.

def colorgen(self ):

Generator function that alternates between red and blue

while True:

yield ’red’ yield 'blue*

def checkers_main_win(self ):

Creates a checkerboard pattern grid layout

colors = self .colorgen()

for r in range(self mainwin_rows):

for c in range(self .mainwin_cols): txt * 'Item (0>, {1}' .format(r,c)

1 = Label(self ,text=txt,bg=next(colors))

1.grid(row=r,column=c,sticky=self.ALL)

def add_framel(self ):

Add a frame with a text area to put stuff in.

self .framel=Frame(self,bg= ’red' )

self .framel.grid(row=0, column=6, rowspan=10,columnspan=10, stick=self. ALL)

self .framel.text_w=Text( self .framel)

self .framel.text_w pack(expand=True,fill BOTH)

def add_frame2(self ):

# Green frame!

self.frame2 = Frame(self,bg= 'green‘ )

self .frame2.grid(row=0,column=0,rowspan=5,columnspan=6,sticky =self. ALL) self .frame2.bind( *<Button-1>’ , self .frame2_handler)

def frame2_handler(self , event):

"’Handles events from frame2‘"

msg = 'Frame 2 clicked at {> {}' . format (event.x,event.y) print(msg)

self .framel.text_w.delete(l.0,END) self .framel.text_w.insert(END, msg)

def add_buttons(self ):

"* Add buttons to the bottom*" self .button_list=[]

button_labels [ 'Red' , 'Blue* , 'Green' , 'Black' , 'yellow* ]

for c,bt in enumerate(button_labels): b = Button( self ,text=bt)

#spon three columns and set the column alignment as #multiples of three.

b.grid(row=10 > column-c 1, '3,columnspan-3 > sticky=self . ALL)

#Bind buttons to button click.

b.bind( ’<Button-l>‘ ,self . buttons Jiandler)

self . button_list.append(b)

def buttons_handler( self, event):

Event Handler for the buttons

button_clicked = event widget[ ‘text' ] print (button_clicked)

self. framel.text_w . delete( 1.0, END)

self . framel.text_w.insert(END, button_clicked)

def main(): root-Tk()

root.geometry( * 800x600' )

root.title( ’Awesome Gui -- It is way COOL*) app = Application(master=root)

app.mainloop()

if name == ' main ' :

main()

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