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Code: Alles auswählen

from Tkinter import *

item_liste=[]
overlap_objekt=None
dragged=False

# x und y koordinaten
start_x=0
start_y=0

def klick(event):
    global overlap_objekt
   
    mouse_x, mouse_y=event.x, event.y
    overlap_objekt=canvas.find_overlapping(mouse_x-5, mouse_y-5, mouse_x+5, mouse_y+5)

    if overlap_objekt==():
        objekt=canvas.create_oval(mouse_x-4, mouse_y-4, mouse_x+4, mouse_y+4, fill='black')
        canvas.tag_bind(objekt, '<Button-1>', drag)
        canvas.tag_bind(objekt, '<ButtonRelease-1>', drop)
        canvas.tag_bind(objekt, '<Enter>', enter)
        canvas.tag_bind(objekt, '<Leave>', leave)
        canvas.tag_bind(objekt, '<Motion>', move)
        return
       

def drag(event):
    global dragged, start_x, start_y
    start_x, start_y=event.x, event.y
    dragged=True
    canvas.config(cursor='fleur')

def drop(event):
    global dragged
    dragged=False
    canvas.config(cursor='')
    print event.x, event.y

def move(event):
    global overlap_objekt, start_x, start_y, dragged
    if dragged:
        vektor=(event.x-start_x, event.y-start_y)
        canvas.move(overlap_objekt, vektor[0], vektor[1])
        start_x, start_y=event.x, event.y
       
def enter(event):
    canvas.config(cursor='hand2')

def leave(event):
    canvas.config(cursor='')


# Tk objekte
fenster=Tk()
canvas=Canvas(fenster, width=400, height=400)
canvas.pack()

# binds
canvas.bind('<Button-1>', klick) 

Code: Alles auswählen

#!/usr/bin/env python
#-*- coding: iso-8859-1 -*-

import Tkinter

class TkWin:

    def __init__(self):

        self.item_liste=[]
        self.overlap_objekt = None
        self.dragged = False
        self.lineMode = False
        self.lineVals = []

        self.start_x = 0
        self.start_y = 0

        self.pointsize = 5

        self.fenster = Tkinter.Tk()
        self.fenster.title("Graphics")
        self.fenster.geometry("+324+173")
        self.fenster.bind('<Control-q>', self.quit)

        self.canvas = Tkinter.Canvas(self.fenster,
                                     width = 400,
                                     height = 400)

        self.canvas.bind('<Button-1>', self.klick)

        self.canvas.pack()
        self.button = Tkinter.Button(self.fenster,
                                     text = "DrawLine",
                                     command = self.drawLine)
        self.button.pack(side = Tkinter.RIGHT)
        self.fenster.mainloop()

    def klick(self, event):
    
        mouse_x = event.x
        mouse_y = event.y

        self.overlap_objekt = self.canvas.find_overlapping(mouse_x - self.pointsize,
                                                           mouse_y - self.pointsize,
                                                           mouse_x + self.pointsize,
                                                           mouse_y + self.pointsize)

        if not self.overlap_objekt:

            objekt = self.canvas.create_oval(mouse_x - self.pointsize + 1,
                                             mouse_y - self.pointsize + 1,
                                             mouse_x + self.pointsize - 1,
                                             mouse_y + self.pointsize - 1,
                                             fill = 'black')

            self.canvas.tag_bind(objekt, '<Button-1>', self.drag)
            self.canvas.tag_bind(objekt, '<ButtonRelease-1>', self.drop)
            self.canvas.tag_bind(objekt, '<Enter>', self.enter)
            self.canvas.tag_bind(objekt, '<Leave>', self.leave)
            self.canvas.tag_bind(objekt, '<Motion>', self.move)

        if self.lineMode:

            self.lineVals.append((mouse_x, mouse_y))

            if len(self.lineVals) >= 2:

                self.canvas.create_line(self.lineVals[0][0], 
                                        self.lineVals[0][1], 
                                        self.lineVals[1][0], 
                                        self.lineVals[1][1],
                                        width = self.pointsize) 
                self.lineMode = False
                self.lineVals = []
                self.button.configure(state = Tkinter.NORMAL)

    def drag(self, event):
        self.start_x = event.x
        self.start_y = event.y
        self.dragged = True
        self.canvas.config(cursor = 'fleur')

    def drop(self, event):
        self.dragged = False
        self.canvas.config(cursor = '')

    def move(self, event):

        if self.dragged:
            vektor = (event.x - self.start_x, event.y - self.start_y)
            self.canvas.move(self.overlap_objekt, vektor[0], vektor[1])
            self.start_x = event.x
            self.start_y = event.y
       
    def enter(self, event):

        self.canvas.config(cursor = 'hand2')

    def leave(self, event):
        self.canvas.config(cursor = '')

    def drawLine(self):
        self.button.configure(state = Tkinter.DISABLED)
        self.lineMode = True

    def quit(self, event):
        self.fenster.destroy()

if __name__ == "__main__":
    app = TkWin()