#$@%#$%!

Ngiler SH3LL 360
: / usr / lib64 / python2.7 / Demo / tkinter / guido /

Information Server
MySQL : OFF Perl : OFF CURL : ON WGET : OFF PKEXEC : OFF

Directive	Local Value
IP Address	162.0.209.101
System	Linux premium169.web-hosting.com 4.18.0-553.50.1.lve.el8.x86_64 #1 SMP Thu Apr 17 19:10:24 UTC 2025 x86_64
User	luxeelil
PHP Version	8.0.30
Software	LiteSpeed
Doc root	Writable

Edit File : canvasevents.py \| Size : 6.45 KB
#! /usr/bin/python2.7 from Tkinter import * from Canvas import Oval, Group, CanvasText # Fix a bug in Canvas.Group as distributed in Python 1.4. The # distributed bind() method is broken. This is what should be used: class Group(Group): def bind(self, sequence=None, command=None): return self.canvas.tag_bind(self.id, sequence, command) class Object: """Base class for composite graphical objects. Objects belong to a canvas, and can be moved around on the canvas. They also belong to at most one ``pile'' of objects, and can be transferred between piles (or removed from their pile). Objects have a canonical ``x, y'' position which is moved when the object is moved. Where the object is relative to this position depends on the object; for simple objects, it may be their center. Objects have mouse sensitivity. They can be clicked, dragged and double-clicked. The behavior may actually be determined by the pile they are in. All instance attributes are public since the derived class may need them. """ def __init__(self, canvas, x=0, y=0, fill='red', text='object'): self.canvas = canvas self.x = x self.y = y self.pile = None self.group = Group(self.canvas) self.createitems(fill, text) def __str__(self): return str(self.group) def createitems(self, fill, text): self.__oval = Oval(self.canvas, self.x-20, self.y-10, self.x+20, self.y+10, fill=fill, width=3) self.group.addtag_withtag(self.__oval) self.__text = CanvasText(self.canvas, self.x, self.y, text=text) self.group.addtag_withtag(self.__text) def moveby(self, dx, dy): if dx == dy == 0: return self.group.move(dx, dy) self.x = self.x + dx self.y = self.y + dy def moveto(self, x, y): self.moveby(x - self.x, y - self.y) def transfer(self, pile): if self.pile: self.pile.delete(self) self.pile = None self.pile = pile if self.pile: self.pile.add(self) def tkraise(self): self.group.tkraise() class Bottom(Object): """An object to serve as the bottom of a pile.""" def createitems(self, args): self.__oval = Oval(self.canvas, self.x-20, self.y-10, self.x+20, self.y+10, fill='gray', outline='') self.group.addtag_withtag(self.__oval) class Pile: """A group of graphical objects.""" def __init__(self, canvas, x, y, tag=None): self.canvas = canvas self.x = x self.y = y self.objects = [] self.bottom = Bottom(self.canvas, self.x, self.y) self.group = Group(self.canvas, tag=tag) self.group.addtag_withtag(self.bottom.group) self.bindhandlers() def bindhandlers(self): self.group.bind('<1>', self.clickhandler) self.group.bind('<Double-1>', self.doubleclickhandler) def add(self, object): self.objects.append(object) self.group.addtag_withtag(object.group) self.position(object) def delete(self, object): object.group.dtag(self.group) self.objects.remove(object) def position(self, object): object.tkraise() i = self.objects.index(object) object.moveto(self.x + i4, self.y + i8) def clickhandler(self, event): pass def doubleclickhandler(self, event): pass class MovingPile(Pile): def bindhandlers(self): Pile.bindhandlers(self) self.group.bind('<B1-Motion>', self.motionhandler) self.group.bind('<ButtonRelease-1>', self.releasehandler) movethis = None def clickhandler(self, event): tags = self.canvas.gettags('current') for i in range(len(self.objects)): o = self.objects[i] if o.group.tag in tags: break else: self.movethis = None return self.movethis = self.objects[i:] for o in self.movethis: o.tkraise() self.lastx = event.x self.lasty = event.y doubleclickhandler = clickhandler def motionhandler(self, event): if not self.movethis: return dx = event.x - self.lastx dy = event.y - self.lasty self.lastx = event.x self.lasty = event.y for o in self.movethis: o.moveby(dx, dy) def releasehandler(self, event): objects = self.movethis if not objects: return self.movethis = None self.finishmove(objects) def finishmove(self, objects): for o in objects: self.position(o) class Pile1(MovingPile): x = 50 y = 50 tag = 'p1' def __init__(self, demo): self.demo = demo MovingPile.__init__(self, self.demo.canvas, self.x, self.y, self.tag) def doubleclickhandler(self, event): try: o = self.objects[-1] except IndexError: return o.transfer(self.other()) MovingPile.doubleclickhandler(self, event) def other(self): return self.demo.p2 def finishmove(self, objects): o = objects[0] p = self.other() x, y = o.x, o.y if (x-p.x)2 + (y-p.y)2 < (x-self.x)2 + (y-self.y)*2: for o in objects: o.transfer(p) else: MovingPile.finishmove(self, objects) class Pile2(Pile1): x = 150 y = 50 tag = 'p2' def other(self): return self.demo.p1 class Demo: def __init__(self, master): self.master = master self.canvas = Canvas(master, width=200, height=200, background='yellow', relief=SUNKEN, borderwidth=2) self.canvas.pack(expand=1, fill=BOTH) self.p1 = Pile1(self) self.p2 = Pile2(self) o1 = Object(self.canvas, fill='red', text='o1') o2 = Object(self.canvas, fill='green', text='o2') o3 = Object(self.canvas, fill='light blue', text='o3') o1.transfer(self.p1) o2.transfer(self.p1) o3.transfer(self.p2) # Main function, run when invoked as a stand-alone Python program. def main(): root = Tk() demo = Demo(root) root.protocol('WM_DELETE_WINDOW', root.quit) root.mainloop() if __name__ == '__main__': main() Back

Edit File : canvasevents.py | Size : 6.45 KB

#! /usr/bin/python2.7

from Tkinter import *
from Canvas import Oval, Group, CanvasText

# Fix a bug in Canvas.Group as distributed in Python 1.4.  The
# distributed bind() method is broken.  This is what should be used:

class Group(Group):
    def bind(self, sequence=None, command=None):
        return self.canvas.tag_bind(self.id, sequence, command)

class Object:

"""Base class for composite graphical objects.

Objects belong to a canvas, and can be moved around on the canvas.
    They also belong to at most one ``pile'' of objects, and can be
    transferred between piles (or removed from their pile).

Objects have a canonical ``x, y'' position which is moved when the
    object is moved.  Where the object is relative to this position
    depends on the object; for simple objects, it may be their center.

Objects have mouse sensitivity.  They can be clicked, dragged and
    double-clicked.  The behavior may actually be determined by the pile
    they are in.

All instance attributes are public since the derived class may
    need them.

"""

def __init__(self, canvas, x=0, y=0, fill='red', text='object'):
        self.canvas = canvas
        self.x = x
        self.y = y
        self.pile = None
        self.group = Group(self.canvas)
        self.createitems(fill, text)

def __str__(self):
        return str(self.group)

def createitems(self, fill, text):
        self.__oval = Oval(self.canvas,
                           self.x-20, self.y-10, self.x+20, self.y+10,
                           fill=fill, width=3)
        self.group.addtag_withtag(self.__oval)
        self.__text = CanvasText(self.canvas,
                           self.x, self.y, text=text)
        self.group.addtag_withtag(self.__text)

def moveby(self, dx, dy):
        if dx == dy == 0:
            return
        self.group.move(dx, dy)
        self.x = self.x + dx
        self.y = self.y + dy

def moveto(self, x, y):
        self.moveby(x - self.x, y - self.y)

def transfer(self, pile):
        if self.pile:
            self.pile.delete(self)
            self.pile = None
        self.pile = pile
        if self.pile:
            self.pile.add(self)

def tkraise(self):
        self.group.tkraise()

class Bottom(Object):

"""An object to serve as the bottom of a pile."""

def createitems(self, *args):
        self.__oval = Oval(self.canvas,
                           self.x-20, self.y-10, self.x+20, self.y+10,
                           fill='gray', outline='')
        self.group.addtag_withtag(self.__oval)

class Pile:

"""A group of graphical objects."""

def __init__(self, canvas, x, y, tag=None):
        self.canvas = canvas
        self.x = x
        self.y = y
        self.objects = []
        self.bottom = Bottom(self.canvas, self.x, self.y)
        self.group = Group(self.canvas, tag=tag)
        self.group.addtag_withtag(self.bottom.group)
        self.bindhandlers()

def bindhandlers(self):
        self.group.bind('<1>', self.clickhandler)
        self.group.bind('<Double-1>', self.doubleclickhandler)

def add(self, object):
        self.objects.append(object)
        self.group.addtag_withtag(object.group)
        self.position(object)

def delete(self, object):
        object.group.dtag(self.group)
        self.objects.remove(object)

def position(self, object):
        object.tkraise()
        i = self.objects.index(object)
        object.moveto(self.x + i*4, self.y + i*8)

def clickhandler(self, event):
        pass

def doubleclickhandler(self, event):
        pass

class MovingPile(Pile):

def bindhandlers(self):
        Pile.bindhandlers(self)
        self.group.bind('<B1-Motion>', self.motionhandler)
        self.group.bind('<ButtonRelease-1>', self.releasehandler)

movethis = None

def clickhandler(self, event):
        tags = self.canvas.gettags('current')
        for i in range(len(self.objects)):
            o = self.objects[i]
            if o.group.tag in tags:
                break
        else:
            self.movethis = None
            return
        self.movethis = self.objects[i:]
        for o in self.movethis:
            o.tkraise()
        self.lastx = event.x
        self.lasty = event.y

doubleclickhandler = clickhandler

def motionhandler(self, event):
        if not self.movethis:
            return
        dx = event.x - self.lastx
        dy = event.y - self.lasty
        self.lastx = event.x
        self.lasty = event.y
        for o in self.movethis:
            o.moveby(dx, dy)

def releasehandler(self, event):
        objects = self.movethis
        if not objects:
            return
        self.movethis = None
        self.finishmove(objects)

def finishmove(self, objects):
        for o in objects:
            self.position(o)

class Pile1(MovingPile):

x = 50
    y = 50
    tag = 'p1'

def __init__(self, demo):
        self.demo = demo
        MovingPile.__init__(self, self.demo.canvas, self.x, self.y, self.tag)

def doubleclickhandler(self, event):
        try:
            o = self.objects[-1]
        except IndexError:
            return
        o.transfer(self.other())
        MovingPile.doubleclickhandler(self, event)

def other(self):
        return self.demo.p2

def finishmove(self, objects):
        o = objects[0]
        p = self.other()
        x, y = o.x, o.y
        if (x-p.x)**2 + (y-p.y)**2 < (x-self.x)**2 + (y-self.y)**2:
            for o in objects:
                o.transfer(p)
        else:
            MovingPile.finishmove(self, objects)

class Pile2(Pile1):

x = 150
    y = 50
    tag = 'p2'

def other(self):
        return self.demo.p1

class Demo:

def __init__(self, master):
        self.master = master
        self.canvas = Canvas(master,
                             width=200, height=200,
                             background='yellow',
                             relief=SUNKEN, borderwidth=2)
        self.canvas.pack(expand=1, fill=BOTH)
        self.p1 = Pile1(self)
        self.p2 = Pile2(self)
        o1 = Object(self.canvas, fill='red', text='o1')
        o2 = Object(self.canvas, fill='green', text='o2')
        o3 = Object(self.canvas, fill='light blue', text='o3')
        o1.transfer(self.p1)
        o2.transfer(self.p1)
        o3.transfer(self.p2)

# Main function, run when invoked as a stand-alone Python program.

def main():
    root = Tk()
    demo = Demo(root)
    root.protocol('WM_DELETE_WINDOW', root.quit)
    root.mainloop()

if __name__ == '__main__':
    main()

Back