[40094] | 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') |
---|