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- from Tkinter import *
-
- class Test(Frame):
- def printit(self):
- print "hi"
-
- def createWidgets(self):
- self.QUIT = Button(self, {'text': 'QUIT',
- 'bg': 'red',
- 'fg': '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()
-