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') |
---|