diff options
Diffstat (limited to 'Demo/tkinter/matt/rubber-line-demo-1.py')
-rw-r--r-- | Demo/tkinter/matt/rubber-line-demo-1.py | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Demo/tkinter/matt/rubber-line-demo-1.py b/Demo/tkinter/matt/rubber-line-demo-1.py new file mode 100644 index 0000000..59b8bd9 --- /dev/null +++ b/Demo/tkinter/matt/rubber-line-demo-1.py @@ -0,0 +1,51 @@ +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() |