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