# This module exports classes for the various canvas item types # NOTE: This module was an experiment and is now obsolete.# It's best to use the Tkinter.Canvas class directly. from Tkinter import Canvas, _cnfmerge, _flatten  class CanvasItem:    def __init__(self, canvas, itemType, *args, **kw):        self.canvas = canvas        self.id = canvas._create(itemType, args, kw)        if not hasattr(canvas, 'items'):            canvas.items = {}        canvas.items[self.id] = self    def __str__(self):        return str(self.id)    def __repr__(self):        return '<%s, id=%d>' % (self.__class__.__name__, self.id)    def delete(self):        del self.canvas.items[self.id]        self.canvas.delete(self.id)    def __getitem__(self, key):        v = self.canvas.tk.split(self.canvas.tk.call(                self.canvas._w, 'itemconfigure',                self.id, '-' + key))        return v[4]    cget = __getitem__    def __setitem__(self, key, value):        self.canvas.itemconfig(self.id, {key: value})    def keys(self):        if not hasattr(self, '_keys'):            self._keys = map(lambda x, tk=self.canvas.tk:                             tk.splitlist(x)[0][1:],                             self.canvas.tk.splitlist(                                     self.canvas._do(                                             'itemconfigure',                                             (self.id,))))        return self._keys    def has_key(self, key):        return key in self.keys()    def __contains__(self, key):        return key in self.keys()    def addtag(self, tag, option='withtag'):        self.canvas.addtag(tag, option, self.id)    def bbox(self):        x1, y1, x2, y2 = self.canvas.bbox(self.id)        return (x1, y1), (x2, y2)    def bind(self, sequence=None, command=None, add=None):        return self.canvas.tag_bind(self.id, sequence, command, add)    def unbind(self, sequence, funcid=None):        self.canvas.tag_unbind(self.id, sequence, funcid)    def config(self, cnf={}, **kw):        return self.canvas.itemconfig(self.id, _cnfmerge((cnf, kw)))    def coords(self, pts = ()):        flat = ()        for x, y in pts: flat = flat + (x, y)        return self.canvas.coords(self.id, *flat)    def dchars(self, first, last=None):        self.canvas.dchars(self.id, first, last)    def dtag(self, ttd):        self.canvas.dtag(self.id, ttd)    def focus(self):        self.canvas.focus(self.id)    def gettags(self):        return self.canvas.gettags(self.id)    def icursor(self, index):        self.canvas.icursor(self.id, index)    def index(self, index):        return self.canvas.index(self.id, index)    def insert(self, beforethis, string):        self.canvas.insert(self.id, beforethis, string)    def lower(self, belowthis=None):        self.canvas.tag_lower(self.id, belowthis)    def move(self, xamount, yamount):        self.canvas.move(self.id, xamount, yamount)    def tkraise(self, abovethis=None):        self.canvas.tag_raise(self.id, abovethis)    raise_ = tkraise # BW compat    def scale(self, xorigin, yorigin, xscale, yscale):        self.canvas.scale(self.id, xorigin, yorigin, xscale, yscale)    def type(self):        return self.canvas.type(self.id) class Arc(CanvasItem):    def __init__(self, canvas, *args, **kw):        CanvasItem.__init__(self, canvas, 'arc', *args, **kw) class Bitmap(CanvasItem):    def __init__(self, canvas, *args, **kw):        CanvasItem.__init__(self, canvas, 'bitmap', *args, **kw) class ImageItem(CanvasItem):    def __init__(self, canvas, *args, **kw):        CanvasItem.__init__(self, canvas, 'image', *args, **kw) class Line(CanvasItem):    def __init__(self, canvas, *args, **kw):        CanvasItem.__init__(self, canvas, 'line', *args, **kw) class Oval(CanvasItem):    def __init__(self, canvas, *args, **kw):        CanvasItem.__init__(self, canvas, 'oval', *args, **kw) class Polygon(CanvasItem):    def __init__(self, canvas, *args, **kw):        CanvasItem.__init__(self, canvas, 'polygon', *args, **kw) class Rectangle(CanvasItem):    def __init__(self, canvas, *args, **kw):        CanvasItem.__init__(self, canvas, 'rectangle', *args, **kw) # XXX "Text" is taken by the Text widget...class CanvasText(CanvasItem):    def __init__(self, canvas, *args, **kw):        CanvasItem.__init__(self, canvas, 'text', *args, **kw) class Window(CanvasItem):    def __init__(self, canvas, *args, **kw):        CanvasItem.__init__(self, canvas, 'window', *args, **kw) class Group:    def __init__(self, canvas, tag=None):        if not tag:            tag = 'Group%d' % id(self)        self.tag = self.id = tag        self.canvas = canvas        self.canvas.dtag(self.tag)    def str(self):        return self.tag    __str__ = str    def _do(self, cmd, *args):        return self.canvas._do(cmd, (self.tag,) + _flatten(args))    def addtag_above(self, tagOrId):        self._do('addtag', 'above', tagOrId)    def addtag_all(self):        self._do('addtag', 'all')    def addtag_below(self, tagOrId):        self._do('addtag', 'below', tagOrId)    def addtag_closest(self, x, y, halo=None, start=None):        self._do('addtag', 'closest', x, y, halo, start)    def addtag_enclosed(self, x1, y1, x2, y2):        self._do('addtag', 'enclosed', x1, y1, x2, y2)    def addtag_overlapping(self, x1, y1, x2, y2):        self._do('addtag', 'overlapping', x1, y1, x2, y2)    def addtag_withtag(self, tagOrId):        self._do('addtag', 'withtag', tagOrId)    def bbox(self):        return self.canvas._getints(self._do('bbox'))    def bind(self, sequence=None, command=None, add=None):        return self.canvas.tag_bind(self.id, sequence, command, add)    def unbind(self, sequence, funcid=None):        self.canvas.tag_unbind(self.id, sequence, funcid)    def coords(self, *pts):        return self._do('coords', pts)    def dchars(self, first, last=None):        self._do('dchars', first, last)    def delete(self):        self._do('delete')    def dtag(self, tagToDelete=None):        self._do('dtag', tagToDelete)    def focus(self):        self._do('focus')    def gettags(self):        return self.canvas.tk.splitlist(self._do('gettags', self.tag))    def icursor(self, index):        return self._do('icursor', index)    def index(self, index):        return self.canvas.tk.getint(self._do('index', index))    def insert(self, beforeThis, string):        self._do('insert', beforeThis, string)    def config(self, cnf={}, **kw):        return self.canvas.itemconfigure(self.tag, _cnfmerge((cnf,kw)))    def lower(self, belowThis=None):        self._do('lower', belowThis)    def move(self, xAmount, yAmount):        self._do('move', xAmount, yAmount)    def tkraise(self, aboveThis=None):        self._do('raise', aboveThis)    lift = tkraise    def scale(self, xOrigin, yOrigin, xScale, yScale):        self._do('scale', xOrigin, yOrigin, xScale, yScale)    def select_adjust(self, index):        self.canvas._do('select', ('adjust', self.tag, index))    def select_from(self, index):        self.canvas._do('select', ('from', self.tag, index))    def select_to(self, index):        self.canvas._do('select', ('to', self.tag, index))    def type(self):        return self._do('type')