|
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') |