| 1 | # This module exports classes for the various canvas item types
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| 2 |
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| 3 | # NOTE: This module was an experiment and is now obsolete.
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| 4 | # It's best to use the Tkinter.Canvas class directly.
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| 5 |
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| 6 | from warnings import warnpy3k
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| 7 | warnpy3k("the Canvas module has been removed in Python 3.0", stacklevel=2)
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| 8 | del warnpy3k
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| 9 |
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| 10 | from Tkinter import Canvas, _cnfmerge, _flatten
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| 11 |
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| 12 |
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| 13 | class CanvasItem:
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| 14 | def __init__(self, canvas, itemType, *args, **kw):
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| 15 | self.canvas = canvas
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| 16 | self.id = canvas._create(itemType, args, kw)
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| 17 | if not hasattr(canvas, 'items'):
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| 18 | canvas.items = {}
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| 19 | canvas.items[self.id] = self
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| 20 | def __str__(self):
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| 21 | return str(self.id)
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| 22 | def __repr__(self):
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| 23 | return '<%s, id=%d>' % (self.__class__.__name__, self.id)
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| 24 | def delete(self):
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| 25 | del self.canvas.items[self.id]
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| 26 | self.canvas.delete(self.id)
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| 27 | def __getitem__(self, key):
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| 28 | v = self.canvas.tk.split(self.canvas.tk.call(
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| 29 | self.canvas._w, 'itemconfigure',
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| 30 | self.id, '-' + key))
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| 31 | return v[4]
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| 32 | cget = __getitem__
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| 33 | def __setitem__(self, key, value):
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| 34 | self.canvas.itemconfig(self.id, {key: value})
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| 35 | def keys(self):
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| 36 | if not hasattr(self, '_keys'):
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| 37 | self._keys = map(lambda x, tk=self.canvas.tk:
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| 38 | tk.splitlist(x)[0][1:],
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| 39 | self.canvas.tk.splitlist(
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| 40 | self.canvas._do(
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| 41 | 'itemconfigure',
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| 42 | (self.id,))))
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| 43 | return self._keys
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| 44 | def has_key(self, key):
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| 45 | return key in self.keys()
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| 46 | def __contains__(self, key):
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| 47 | return key in self.keys()
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| 48 | def addtag(self, tag, option='withtag'):
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| 49 | self.canvas.addtag(tag, option, self.id)
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| 50 | def bbox(self):
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| 51 | x1, y1, x2, y2 = self.canvas.bbox(self.id)
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| 52 | return (x1, y1), (x2, y2)
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| 53 | def bind(self, sequence=None, command=None, add=None):
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| 54 | return self.canvas.tag_bind(self.id, sequence, command, add)
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| 55 | def unbind(self, sequence, funcid=None):
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| 56 | self.canvas.tag_unbind(self.id, sequence, funcid)
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| 57 | def config(self, cnf={}, **kw):
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| 58 | return self.canvas.itemconfig(self.id, _cnfmerge((cnf, kw)))
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| 59 | def coords(self, pts = ()):
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| 60 | flat = ()
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| 61 | for x, y in pts: flat = flat + (x, y)
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| 62 | return self.canvas.coords(self.id, *flat)
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| 63 | def dchars(self, first, last=None):
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| 64 | self.canvas.dchars(self.id, first, last)
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| 65 | def dtag(self, ttd):
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| 66 | self.canvas.dtag(self.id, ttd)
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| 67 | def focus(self):
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| 68 | self.canvas.focus(self.id)
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| 69 | def gettags(self):
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| 70 | return self.canvas.gettags(self.id)
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| 71 | def icursor(self, index):
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| 72 | self.canvas.icursor(self.id, index)
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| 73 | def index(self, index):
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| 74 | return self.canvas.index(self.id, index)
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| 75 | def insert(self, beforethis, string):
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| 76 | self.canvas.insert(self.id, beforethis, string)
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| 77 | def lower(self, belowthis=None):
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| 78 | self.canvas.tag_lower(self.id, belowthis)
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| 79 | def move(self, xamount, yamount):
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| 80 | self.canvas.move(self.id, xamount, yamount)
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| 81 | def tkraise(self, abovethis=None):
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| 82 | self.canvas.tag_raise(self.id, abovethis)
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| 83 | raise_ = tkraise # BW compat
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| 84 | def scale(self, xorigin, yorigin, xscale, yscale):
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| 85 | self.canvas.scale(self.id, xorigin, yorigin, xscale, yscale)
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| 86 | def type(self):
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| 87 | return self.canvas.type(self.id)
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| 88 |
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| 89 | class Arc(CanvasItem):
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| 90 | def __init__(self, canvas, *args, **kw):
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| 91 | CanvasItem.__init__(self, canvas, 'arc', *args, **kw)
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| 92 |
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| 93 | class Bitmap(CanvasItem):
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| 94 | def __init__(self, canvas, *args, **kw):
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| 95 | CanvasItem.__init__(self, canvas, 'bitmap', *args, **kw)
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| 96 |
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| 97 | class ImageItem(CanvasItem):
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| 98 | def __init__(self, canvas, *args, **kw):
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| 99 | CanvasItem.__init__(self, canvas, 'image', *args, **kw)
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| 100 |
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| 101 | class Line(CanvasItem):
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| 102 | def __init__(self, canvas, *args, **kw):
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| 103 | CanvasItem.__init__(self, canvas, 'line', *args, **kw)
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| 104 |
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| 105 | class Oval(CanvasItem):
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| 106 | def __init__(self, canvas, *args, **kw):
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| 107 | CanvasItem.__init__(self, canvas, 'oval', *args, **kw)
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| 108 |
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| 109 | class Polygon(CanvasItem):
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| 110 | def __init__(self, canvas, *args, **kw):
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| 111 | CanvasItem.__init__(self, canvas, 'polygon', *args, **kw)
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| 112 |
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| 113 | class Rectangle(CanvasItem):
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| 114 | def __init__(self, canvas, *args, **kw):
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| 115 | CanvasItem.__init__(self, canvas, 'rectangle', *args, **kw)
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| 116 |
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| 117 | # XXX "Text" is taken by the Text widget...
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| 118 | class CanvasText(CanvasItem):
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| 119 | def __init__(self, canvas, *args, **kw):
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| 120 | CanvasItem.__init__(self, canvas, 'text', *args, **kw)
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| 121 |
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| 122 | class Window(CanvasItem):
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| 123 | def __init__(self, canvas, *args, **kw):
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| 124 | CanvasItem.__init__(self, canvas, 'window', *args, **kw)
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| 125 |
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| 126 | class Group:
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| 127 | def __init__(self, canvas, tag=None):
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| 128 | if not tag:
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| 129 | tag = 'Group%d' % id(self)
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| 130 | self.tag = self.id = tag
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| 131 | self.canvas = canvas
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| 132 | self.canvas.dtag(self.tag)
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| 133 | def str(self):
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| 134 | return self.tag
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| 135 | __str__ = str
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| 136 | def _do(self, cmd, *args):
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| 137 | return self.canvas._do(cmd, (self.tag,) + _flatten(args))
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| 138 | def addtag_above(self, tagOrId):
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| 139 | self._do('addtag', 'above', tagOrId)
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| 140 | def addtag_all(self):
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| 141 | self._do('addtag', 'all')
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| 142 | def addtag_below(self, tagOrId):
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| 143 | self._do('addtag', 'below', tagOrId)
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| 144 | def addtag_closest(self, x, y, halo=None, start=None):
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| 145 | self._do('addtag', 'closest', x, y, halo, start)
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| 146 | def addtag_enclosed(self, x1, y1, x2, y2):
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| 147 | self._do('addtag', 'enclosed', x1, y1, x2, y2)
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| 148 | def addtag_overlapping(self, x1, y1, x2, y2):
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| 149 | self._do('addtag', 'overlapping', x1, y1, x2, y2)
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| 150 | def addtag_withtag(self, tagOrId):
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| 151 | self._do('addtag', 'withtag', tagOrId)
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| 152 | def bbox(self):
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| 153 | return self.canvas._getints(self._do('bbox'))
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| 154 | def bind(self, sequence=None, command=None, add=None):
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| 155 | return self.canvas.tag_bind(self.id, sequence, command, add)
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| 156 | def unbind(self, sequence, funcid=None):
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| 157 | self.canvas.tag_unbind(self.id, sequence, funcid)
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| 158 | def coords(self, *pts):
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| 159 | return self._do('coords', pts)
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| 160 | def dchars(self, first, last=None):
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| 161 | self._do('dchars', first, last)
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| 162 | def delete(self):
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| 163 | self._do('delete')
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| 164 | def dtag(self, tagToDelete=None):
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| 165 | self._do('dtag', tagToDelete)
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| 166 | def focus(self):
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| 167 | self._do('focus')
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| 168 | def gettags(self):
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| 169 | return self.canvas.tk.splitlist(self._do('gettags', self.tag))
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| 170 | def icursor(self, index):
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| 171 | return self._do('icursor', index)
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| 172 | def index(self, index):
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| 173 | return self.canvas.tk.getint(self._do('index', index))
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| 174 | def insert(self, beforeThis, string):
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| 175 | self._do('insert', beforeThis, string)
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| 176 | def config(self, cnf={}, **kw):
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| 177 | return self.canvas.itemconfigure(self.tag, _cnfmerge((cnf,kw)))
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| 178 | def lower(self, belowThis=None):
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| 179 | self._do('lower', belowThis)
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| 180 | def move(self, xAmount, yAmount):
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| 181 | self._do('move', xAmount, yAmount)
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| 182 | def tkraise(self, aboveThis=None):
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| 183 | self._do('raise', aboveThis)
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| 184 | lift = tkraise
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| 185 | def scale(self, xOrigin, yOrigin, xScale, yScale):
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| 186 | self._do('scale', xOrigin, yOrigin, xScale, yScale)
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| 187 | def select_adjust(self, index):
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| 188 | self.canvas._do('select', ('adjust', self.tag, index))
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| 189 | def select_from(self, index):
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| 190 | self.canvas._do('select', ('from', self.tag, index))
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| 191 | def select_to(self, index):
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| 192 | self.canvas._do('select', ('to', self.tag, index))
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| 193 | def type(self):
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| 194 | return self._do('type')
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