Mercurial > cpython-lru_cache-weakref

annotate Lib/stdwin/Split.py @ 5817:48b94de85bf3 legacy-trunk

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Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
parents f9bbb01388d5
children
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rev   line source
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1 # Generic Split implementation.
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2 # Use as a base class for other splits.
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3 # Derived classes should at least implement the methods that call
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4 # unimpl() below: getminsize(), getbounds() and setbounds().
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5
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6 Error = 'Split.Error' # Exception
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7
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8 import rect
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9 from stdwinevents import *
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10
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11 class Split:
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12 #
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13 # Calls from creator
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14 # NB derived classes may add parameters to create()
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15 #
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16 def create(self, parent):
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17 parent.addchild(self)
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18 self.parent = parent
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19 self.children = []
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20 self.mouse_interest = []
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21 self.keybd_interest = []
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22 self.timer_interest = []
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23 self.altdraw_interest = []
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24 self.mouse_focus = None
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25 self.keybd_focus = None
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26 return self
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27 #
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28 # Downcalls from parent to child
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29 #
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30 def destroy(self):
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31 self.parent = None
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32 for child in self.children:
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33 child.destroy()
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34 del self.children[:]
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35 del self.mouse_interest[:]
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36 del self.keybd_interest[:]
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37 del self.timer_interest[:]
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38 del self.altdraw_interest[:]
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39 self.mouse_focus = None
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40 self.keybd_focus = None
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41 #
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42 def getminsize(self, m, (width, height)):
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43 return unimpl() # Should ask children
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44 def getbounds(self):
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45 return unimpl()
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46 def setbounds(self, bounds):
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47 unimpl() # Should tell children
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48 #
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49 def realize(self):
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50 for child in self.children:
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51 child.realize()
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52 #
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53 def draw(self, d, detail):
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54 # (Could avoid calls to children outside the area)
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55 for child in self.children:
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56 child.draw(d, detail)
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57 #
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58 def altdraw(self, detail):
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59 for child in self.altdraw_interest:
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60 child.altdraw(detail)
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61 #
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62 # Keyboard focus handling (used internally)
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63 # XXX This is not enough if two levels of splits
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64 # XXX surround text fields!
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65 #
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66 def set_keybd_focus(self, child):
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67 if self.keybd_focus <> child:
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68 if self.keybd_focus:
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69 self.keybd_focus.deactivate()
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70 self.keybd_focus = None
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71 if child:
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72 child.activate()
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73 self.keybd_focus = child
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74 def next_keybd_focus(self):
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75 if not self.keybd_interest:
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76 self.set_keybd_focus(None)
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77 return
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78 if self.keybd_focus in self.keybd_interest:
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79 i = self.keybd_interest.index(self.keybd_focus)
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80 i = (i+1) % len(self.keybd_interest)
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81 else:
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82 i = 0
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83 self.set_keybd_focus(self.keybd_interest[i])
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84 #
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85 # Downcalls only made after certain upcalls
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86 #
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87 def mouse_down(self, detail):
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88 if self.mouse_focus:
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89 self.mouse_focus.mouse_down(detail)
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90 return
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91 p = detail[0]
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92 for child in self.mouse_interest:
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93 if rect.pointinrect(p, child.getbounds()):
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94 self.mouse_focus = child
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95 if child in self.keybd_interest:
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96 self.set_keybd_focus(child)
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97 child.mouse_down(detail)
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98 def mouse_move(self, detail):
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99 if self.mouse_focus:
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100 self.mouse_focus.mouse_move(detail)
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101 def mouse_up(self, detail):
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102 if self.mouse_focus:
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103 self.mouse_focus.mouse_up(detail)
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104 self.mouse_focus = None
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105 #
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106 def activate(self):
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107 if self.keybd_focus:
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108 self.keybd_focus.activate()
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109 else:
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110 self.next_keybd_focus()
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111 def deactivate(self):
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112 if self.keybd_focus:
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113 self.keybd_focus.deactivate()
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114 #
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115 def keybd(self, type, detail):
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116 if not self.keybd_focus:
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117 self.set_keybd_focus(self.keybd_interest[0])
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118 if type == WE_COMMAND and detail == WC_TAB and \
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119 len(self.keybd_interest) > 1:
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120 self.next_keybd_focus()
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121 return
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122 self.keybd_focus.keybd(type, detail)
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123 #
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124 def timer(self):
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125 for child in self.timer_interest:
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126 child.timer()
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127 #
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128 # Upcalls from child to parent
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129 #
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130 def addchild(self, child):
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131 if child in self.children:
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132 raise Error, 'addchild: child already inlist'
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133 self.children.append(child)
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134 def delchild(self, child):
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135 if child not in self.children:
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136 raise Error, 'delchild: child not in list'
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137 self.children.remove(child)
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138 if child in self.mouse_interest:
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139 self.mouse_interest.remove(child)
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140 if child in self.keybd_interest:
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141 self.keybd_interest.remove(child)
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142 if child in self.timer_interest:
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143 self.timer_interest.remove(child)
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144 if child in self.altdraw_interest:
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145 self.altdraw_interest.remove(child)
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146 if child == self.mouse_focus:
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147 self.mouse_focus = None
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148 if child == self.keybd_focus:
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149 self.keybd_focus = None
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150 #
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151 def need_mouse(self, child):
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152 if child not in self.mouse_interest:
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153 self.mouse_interest.append(child)
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154 self.parent.need_mouse(self)
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155 def no_mouse(self, child):
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156 if child == self.mouse_focus:
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157 self.mouse_focus = None
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158 if child in self.mouse_interest:
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159 self.mouse_interest.remove(child)
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160 if not self.mouse_interest:
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161 self.parent.no_mouse(self)
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162 #
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163 def need_keybd(self, child):
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164 if child not in self.keybd_interest:
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165 self.keybd_interest.append(child)
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166 self.parent.need_keybd(self)
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167 if not self.keybd_focus:
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168 self.set_keybd_focus(child)
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169 def no_keybd(self, child):
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170 if child == self.keybd_focus:
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171 self.keybd_focus = None # Don't call child.deactivate()
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172 if child in self.keybd_interest:
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173 self.keybd_interest.remove(child)
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174 if not self.keybd_interest:
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175 self.parent.no_keybd(self)
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176 #
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177 def need_timer(self, child):
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178 if child not in self.timer_interest:
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179 self.timer_interest.append(child)
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180 self.parent.need_timer(self)
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181 def no_timer(self, child):
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182 if child in self.timer_interest:
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183 self.timer_interest.remove(child)
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184 if not self.timer_interest:
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185 self.parent.no_timer(self)
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186 #
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187 def need_altdraw(self, child):
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188 if child not in self.altdraw_interest:
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189 self.altdraw_interest.append(child)
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190 self.parent.need_altdraw(self)
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191 def no_altdraw(self, child):
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192 if child in self.altdraw_interest:
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193 self.altdraw_interest.remove(child)
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194 if not self.altdraw_interest:
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195 self.parent.no_altdraw(self)
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196 #
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197 # The rest are transparent:
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198 #
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199 def begindrawing(self):
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200 return self.parent.begindrawing()
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201 def beginmeasuring(self):
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202 return self.parent.beginmeasuring()
190
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203 def getwindow(self):
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204 return self.parent.getwindow()
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205 #
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206 def change(self, area):
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207 self.parent.change(area)
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208 def scroll(self, area, vector):
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209 self.parent.scroll(area, vector)
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210 def settimer(self, itimer):
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211 self.parent.settimer(itimer)