Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: 74f4bd53e03ded8408bcc2de67cf0f5a4ac5b1a1 authored by Barry Warsaw on 23 February 2012, 15:59:38 UTC
Bump some more copyright years (as per PEP 101), since this is the first
Bump some more copyright years (as per PEP 101), since this is the first
Tip revision: 74f4bd5
rubber-line-demo-1.py
from Tkinter import *
class Test(Frame):
def printit(self):
print "hi"
def createWidgets(self):
self.QUIT = Button(self, text='QUIT',
background='red',
foreground='white',
height=3,
command=self.quit)
self.QUIT.pack(side=BOTTOM, fill=BOTH)
self.canvasObject = Canvas(self, width="5i", height="5i")
self.canvasObject.pack(side=LEFT)
def mouseDown(self, event):
# canvas x and y take the screen coords from the event and translate
# them into the coordinate system of the canvas object
self.startx = self.canvasObject.canvasx(event.x)
self.starty = self.canvasObject.canvasy(event.y)
def mouseMotion(self, event):
# canvas x and y take the screen coords from the event and translate
# them into the coordinate system of the canvas object
x = self.canvasObject.canvasx(event.x)
y = self.canvasObject.canvasy(event.y)
if (self.startx != event.x) and (self.starty != event.y) :
self.canvasObject.delete(self.rubberbandLine)
self.rubberbandLine = self.canvasObject.create_line(
self.startx, self.starty, x, y)
# this flushes the output, making sure that
# the rectangle makes it to the screen
# before the next event is handled
self.update_idletasks()
def __init__(self, master=None):
Frame.__init__(self, master)
Pack.config(self)
self.createWidgets()
# this is a "tagOrId" for the rectangle we draw on the canvas
self.rubberbandLine = None
Widget.bind(self.canvasObject, "<Button-1>", self.mouseDown)
Widget.bind(self.canvasObject, "<Button1-Motion>", self.mouseMotion)
test = Test()
test.mainloop()