symbian-qemu-0.9.1-12/python-2.6.1/Demo/tkinter/matt/rubber-band-box-demo-1.py
author johnathan.white@2718R8BGH51.accenture.com
Mon, 08 Mar 2010 18:45:03 +0000
changeset 46 b6935a90ca64
parent 1 2fb8b9db1c86
permissions -rw-r--r--
Modify framebuffer and NGA framebuffer to read screen size from board model dtb file. Optimise memory usuage of frame buffer Add example minigui application with hooks to profiler (which writes results to S:\). Modified NGA framebuffer to run its own dfc queue at high priority

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.rubberbandBox)
            self.rubberbandBox = self.canvasObject.create_rectangle(
                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 mouseUp(self, event):
        self.canvasObject.delete(self.rubberbandBox)

    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.rubberbandBox = None

        # and the bindings that make it work..
        Widget.bind(self.canvasObject, "<Button-1>", self.mouseDown)
        Widget.bind(self.canvasObject, "<Button1-Motion>", self.mouseMotion)
        Widget.bind(self.canvasObject, "<Button1-ButtonRelease>", self.mouseUp)


test = Test()

test.mainloop()