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