Mercurial > fife-parpg

annotate engine/extensions/pychan/internal.py @ 313:fa3778416433

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clean up the code
author wenlin_fife@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 14 Aug 2009 00:59:54 +0000
parents 51cc05d862f2
children 48c99636453e
rev   line source
207
40257a6dc57d PyChan: Meaningful error if a font wasn't loaded.
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1 # -*- coding: utf-8 -*-
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2
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3 from compat import guichan, in_fife
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4 import widgets
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5 import fife_timer as timer
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6 import fonts
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7 from exceptions import *
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8 from traceback import print_exc
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9
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10 def get_manager():
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11 """
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12 Get the manager from inside pychan.
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13
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14 To avoid cyclic imports write::
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15 from internal import get_manager
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16 """
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17 return Manager.manager
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18
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19 def screen_width():
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20 return get_manager().hook.screen_width
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21
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22 def screen_height():
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23 return get_manager().hook.screen_height
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24
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25 class Manager(object):
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26 manager = None
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27
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28 def __init__(self, hook, debug = False, compat_layout = False):
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29 super(Manager,self).__init__()
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30 self.hook = hook
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31 self.debug = debug
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32 self.compat_layout = compat_layout
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33 self.unicodePolicy = ('ignore',)
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34
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35 if in_fife:
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36 if not hook.engine.getEventManager():
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37 raise InitializationError("No event manager installed.")
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38 if not hook.engine.getGuiManager():
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39 raise InitializationError("No GUI manager installed.")
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40 timer.init(hook.engine.getTimeManager())
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41
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42 self.fonts = {}
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43 #glyphs = ' abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.,!?-+/:();%`\'*#=[]"'
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44 self.fonts['default'] = hook.default_font
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45
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46 self.styles = {}
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47 self.addStyle('default',DEFAULT_STYLE)
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48
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49 Manager.manager = self
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50
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51 # Setup synchronous dialogs
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52 self.mainLoop = None
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53 self.breakFromMainLoop = None
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54 self.can_execute = False
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55
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56 import weakref
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57 self.allWidgets = weakref.WeakKeyDictionary()
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58
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59 # Autopos
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60 from autoposition import placeWidget
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61 self.placeWidget = placeWidget
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62
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63 def setupModalExecution(self,mainLoop,breakFromMainLoop):
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64 """
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65 Setup synchronous execution of dialogs.
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66 """
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67 self.mainLoop = mainLoop
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68 self.breakFromMainLoop = breakFromMainLoop
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69 self.can_execute = True
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70
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71 def show(self,widget):
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72 """
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73 Shows a widget on screen. Used by L{Widget.show} - do not use directly.
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74 """
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75 self.placeWidget(widget, widget.position_technique)
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76 assert widget not in self.allWidgets
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77 self.allWidgets[ widget ] = 1
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78 self.hook.add_widget( widget.real_widget )
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79
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80 def hide(self,widget):
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81 """
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82 Hides a widget again. Used by L{Widget.hide} - do not use directly.
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83 """
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84 self.hook.remove_widget( widget.real_widget )
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85 del self.allWidgets[ widget ]
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86
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87 def setDefaultFont(self,name):
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88 self.fonts['default'] = self.getFont(name)
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89
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90 def getFont(self,name):
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91 """
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92 B{pending deprecation}
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93
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94 Returns a GuiFont identified by its name.
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95
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96 @param name: A string identifier from the font definitions in pychans config files.
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97 """
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98 if in_fife:
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99 font = self.fonts.get(name)
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100 if isinstance(font,guichan.GuiFont):
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101 return font
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102 if hasattr(font,"font") and isinstance(getattr(font,"font"),guichan.GuiFont):
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103 return font.font
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104 raise InitializationError("Couldn't find the font '%s' - did you forget loading a .fontdef?" % str(name))
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105 else:
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106 return self.hook.get_font(name)
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107
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108 def addFont(self,font):
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109 """
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110 B{deprecated}
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111
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112 Add a font to the font registry. It's not necessary to call this directly.
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113 But it expects a L{Font} instance and throws an L{InitializationError}
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114 otherwise.
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115
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116 @param font: A L{Font} instance.
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117 """
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118 if not isinstance(font,fonts.Font):
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119 raise InitializationError("PyChan Manager expected a fonts.Font instance, not %s." % repr(font))
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120 self.fonts[font.name] = font
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121
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122 def addStyle(self,name,style):
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123 style = self._remapStyleKeys(style)
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124
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125 for k,v in self.styles.get('default',{}).items():
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126 style[k] = style.get(k,v)
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127 self.styles[name] = style
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128
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129 def stylize(self,widget, style, **kwargs):
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130 style = self.styles[style]
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131 for k,v in style.get('default',{}).items():
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132 v = kwargs.get(k,v)
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133 setattr(widget,k,v)
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134
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135 cls = widget.__class__
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136 for applicable,specstyle in style.items():
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137 if not isinstance(applicable,tuple):
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138 applicable = (applicable,)
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139 if cls in applicable:
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140 for k,v in specstyle.items():
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141 v = kwargs.get(k,v)
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142 setattr(widget,k,v)
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143
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144 def _remapStyleKeys(self,style):
255
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145 """
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146 Translate style selectors to tuples of widget classes. (internal)
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147 """
205
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148 # Remap class names, create copy:
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149 def _toClass(class_):
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150 if class_ == "default":
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151 return class_
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152
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153 if type(class_) == type(widgets.Widget) and issubclass(class_,widgets.Widget):
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154 return class_
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155 if not widgets.WIDGETS.has_key(str(class_)):
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156 raise InitializationError("Can't resolve %s to a widget class." % repr(class_))
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157 return widgets.WIDGETS[str(class_)]
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158
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159 style_copy = {}
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160 for k,v in style.items():
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161 if isinstance(k,tuple):
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162 new_k = tuple(map(_toClass,k))
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163 else:
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164 new_k = _toClass(k)
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165 style_copy[new_k] = v
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166 return style_copy
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167
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168 def loadImage(self,filename):
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169 if not filename:
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170 raise InitializationError("Empty Image file.")
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171 return self.hook.load_image(filename)
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172
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173 # Default Widget style.
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174
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175 DEFAULT_STYLE = {
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176 'default' : {
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177 'border_size': 0,
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178 'margins': (0,0),
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179 'base_color' : guichan.Color(28,28,28),
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180 'foreground_color' : guichan.Color(255,255,255),
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181 'background_color' : guichan.Color(50,50,50),
218
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182 'selection_color' : guichan.Color(80,80,80),
255
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183 'font' : 'default'
205
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184 },
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185 'Button' : {
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186 'border_size': 2,
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187 'margins' : (5,2),
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188 'min_size' : (15,10),
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189 },
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190 'CheckBox' : {
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191 'border_size': 0,
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192 },
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193 'RadioButton' : {
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194 'border_size': 0,
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195 'background_color' : guichan.Color(0,0,0),
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196 },
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197 'Label' : {
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198 'border_size': 0,
255
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199 'background_color' : guichan.Color(50,50,50,0)
205
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200 },
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201 'ClickLabel' : {
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202 'border_size': 0,
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203 },
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204 'ListBox' : {
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205 'border_size': 0,
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206 },
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207 'Window' : {
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208 'border_size': 0,
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209 'margins': (5,5),
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210 'opaque' : 1,
255
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211 'padding':2,
205
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212 'titlebar_height' : 12,
255
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213 'background_image' : None,
205
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214 },
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215 'TextBox' : {
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216 },
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217 ('Container','HBox','VBox') : {
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218 'border_size': 0,
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219 'margins': (0,0),
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220 'padding':2,
255
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221 'opaque' : 1,
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222 'background_image' : None,
205
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223 }
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224 }