1 # This module exports classes for the various canvas item types 2 3 # NOTE: This module was an experiment and is now obsolete. 4 # It's best to use the Tkinter.Canvas class directly. 5 6 from warnings import warnpy3k 7 warnpy3k("the Canvas module has been removed in Python 3.0", stacklevel=2) 8 del warnpy3k 9 10 from Tkinter import Canvas, _cnfmerge, _flatten 11 12 13 class CanvasItem: 14 def __init__(self, canvas, itemType, *args, **kw): 15 self.canvas = canvas 16 self.id = canvas._create(itemType, args, kw) 17 if not hasattr(canvas, 'items'): 18 canvas.items = {} 19 canvas.items[self.id] = self 20 def __str__(self): 21 return str(self.id) 22 def __repr__(self): 23 return '<%s, id=%d>' % (self.__class__.__name__, self.id) 24 def delete(self): 25 del self.canvas.items[self.id] 26 self.canvas.delete(self.id) 27 def __getitem__(self, key): 28 v = self.canvas.tk.split(self.canvas.tk.call( 29 self.canvas._w, 'itemconfigure', 30 self.id, '-' + key)) 31 return v[4] 32 cget = __getitem__ 33 def __setitem__(self, key, value): 34 self.canvas.itemconfig(self.id, {key: value}) 35 def keys(self): 36 if not hasattr(self, '_keys'): 37 self._keys = map(lambda x, tk=self.canvas.tk: 38 tk.splitlist(x)[0][1:], 39 self.canvas.tk.splitlist( 40 self.canvas._do( 41 'itemconfigure', 42 (self.id,)))) 43 return self._keys 44 def has_key(self, key): 45 return key in self.keys() 46 def __contains__(self, key): 47 return key in self.keys() 48 def addtag(self, tag, option='withtag'): 49 self.canvas.addtag(tag, option, self.id) 50 def bbox(self): 51 x1, y1, x2, y2 = self.canvas.bbox(self.id) 52 return (x1, y1), (x2, y2) 53 def bind(self, sequence=None, command=None, add=None): 54 return self.canvas.tag_bind(self.id, sequence, command, add) 55 def unbind(self, sequence, funcid=None): 56 self.canvas.tag_unbind(self.id, sequence, funcid) 57 def config(self, cnf={}, **kw): 58 return self.canvas.itemconfig(self.id, _cnfmerge((cnf, kw))) 59 def coords(self, pts = ()): 60 flat = () 61 for x, y in pts: flat = flat + (x, y) 62 return self.canvas.coords(self.id, *flat) 63 def dchars(self, first, last=None): 64 self.canvas.dchars(self.id, first, last) 65 def dtag(self, ttd): 66 self.canvas.dtag(self.id, ttd) 67 def focus(self): 68 self.canvas.focus(self.id) 69 def gettags(self): 70 return self.canvas.gettags(self.id) 71 def icursor(self, index): 72 self.canvas.icursor(self.id, index) 73 def index(self, index): 74 return self.canvas.index(self.id, index) 75 def insert(self, beforethis, string): 76 self.canvas.insert(self.id, beforethis, string) 77 def lower(self, belowthis=None): 78 self.canvas.tag_lower(self.id, belowthis) 79 def move(self, xamount, yamount): 80 self.canvas.move(self.id, xamount, yamount) 81 def tkraise(self, abovethis=None): 82 self.canvas.tag_raise(self.id, abovethis) 83 raise_ = tkraise # BW compat 84 def scale(self, xorigin, yorigin, xscale, yscale): 85 self.canvas.scale(self.id, xorigin, yorigin, xscale, yscale) 86 def type(self): 87 return self.canvas.type(self.id) 88 89 class Arc(CanvasItem): 90 def __init__(self, canvas, *args, **kw): 91 CanvasItem.__init__(self, canvas, 'arc', *args, **kw) 92 93 class Bitmap(CanvasItem): 94 def __init__(self, canvas, *args, **kw): 95 CanvasItem.__init__(self, canvas, 'bitmap', *args, **kw) 96 97 class ImageItem(CanvasItem): 98 def __init__(self, canvas, *args, **kw): 99 CanvasItem.__init__(self, canvas, 'image', *args, **kw) 100 101 class Line(CanvasItem): 102 def __init__(self, canvas, *args, **kw): 103 CanvasItem.__init__(self, canvas, 'line', *args, **kw) 104 105 class Oval(CanvasItem): 106 def __init__(self, canvas, *args, **kw): 107 CanvasItem.__init__(self, canvas, 'oval', *args, **kw) 108 109 class Polygon(CanvasItem): 110 def __init__(self, canvas, *args, **kw): 111 CanvasItem.__init__(self, canvas, 'polygon', *args, **kw) 112 113 class Rectangle(CanvasItem): 114 def __init__(self, canvas, *args, **kw): 115 CanvasItem.__init__(self, canvas, 'rectangle', *args, **kw) 116 117 # XXX "Text" is taken by the Text widget... 118 class CanvasText(CanvasItem): 119 def __init__(self, canvas, *args, **kw): 120 CanvasItem.__init__(self, canvas, 'text', *args, **kw) 121 122 class Window(CanvasItem): 123 def __init__(self, canvas, *args, **kw): 124 CanvasItem.__init__(self, canvas, 'window', *args, **kw) 125 126 class Group: 127 def __init__(self, canvas, tag=None): 128 if not tag: 129 tag = 'Group%d' % id(self) 130 self.tag = self.id = tag 131 self.canvas = canvas 132 self.canvas.dtag(self.tag) 133 def str(self): 134 return self.tag 135 __str__ = str 136 def _do(self, cmd, *args): 137 return self.canvas._do(cmd, (self.tag,) + _flatten(args)) 138 def addtag_above(self, tagOrId): 139 self._do('addtag', 'above', tagOrId) 140 def addtag_all(self): 141 self._do('addtag', 'all') 142 def addtag_below(self, tagOrId): 143 self._do('addtag', 'below', tagOrId) 144 def addtag_closest(self, x, y, halo=None, start=None): 145 self._do('addtag', 'closest', x, y, halo, start) 146 def addtag_enclosed(self, x1, y1, x2, y2): 147 self._do('addtag', 'enclosed', x1, y1, x2, y2) 148 def addtag_overlapping(self, x1, y1, x2, y2): 149 self._do('addtag', 'overlapping', x1, y1, x2, y2) 150 def addtag_withtag(self, tagOrId): 151 self._do('addtag', 'withtag', tagOrId) 152 def bbox(self): 153 return self.canvas._getints(self._do('bbox')) 154 def bind(self, sequence=None, command=None, add=None): 155 return self.canvas.tag_bind(self.id, sequence, command, add) 156 def unbind(self, sequence, funcid=None): 157 self.canvas.tag_unbind(self.id, sequence, funcid) 158 def coords(self, *pts): 159 return self._do('coords', pts) 160 def dchars(self, first, last=None): 161 self._do('dchars', first, last) 162 def delete(self): 163 self._do('delete') 164 def dtag(self, tagToDelete=None): 165 self._do('dtag', tagToDelete) 166 def focus(self): 167 self._do('focus') 168 def gettags(self): 169 return self.canvas.tk.splitlist(self._do('gettags', self.tag)) 170 def icursor(self, index): 171 return self._do('icursor', index) 172 def index(self, index): 173 return self.canvas.tk.getint(self._do('index', index)) 174 def insert(self, beforeThis, string): 175 self._do('insert', beforeThis, string) 176 def config(self, cnf={}, **kw): 177 return self.canvas.itemconfigure(self.tag, _cnfmerge((cnf,kw))) 178 def lower(self, belowThis=None): 179 self._do('lower', belowThis) 180 def move(self, xAmount, yAmount): 181 self._do('move', xAmount, yAmount) 182 def tkraise(self, aboveThis=None): 183 self._do('raise', aboveThis) 184 lift = tkraise 185 def scale(self, xOrigin, yOrigin, xScale, yScale): 186 self._do('scale', xOrigin, yOrigin, xScale, yScale) 187 def select_adjust(self, index): 188 self.canvas._do('select', ('adjust', self.tag, index)) 189 def select_from(self, index): 190 self.canvas._do('select', ('from', self.tag, index)) 191 def select_to(self, index): 192 self.canvas._do('select', ('to', self.tag, index)) 193 def type(self): 194 return self._do('type') 195
