Graphics/ModuleItem.py

Fri, 18 Oct 2013 23:00:41 +0200

author
T.Rzepka <Tobias.Rzepka@gmail.com>
date
Fri, 18 Oct 2013 23:00:41 +0200
branch
Py2 comp.
changeset 3057
10516539f238
parent 2525
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parent 2992
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child 3145
a9de05d4a22f
permissions
-rw-r--r--

Merge with default branch after shorten the code lines to max. 79 characters.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2007 - 2013 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a module item.
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8 """
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9
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10 from __future__ import unicode_literals # __IGNORE_WARNING__
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11
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12 from PyQt4.QtGui import QFont, QGraphicsSimpleTextItem, QStyle
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14 from .UMLItem import UMLModel, UMLItem
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16
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17 class ModuleModel(UMLModel):
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18 """
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19 Class implementing the module model.
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20 """
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21 def __init__(self, name, classlist=[]):
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22 """
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23 Constructor
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24
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25 @param name the module name (string)
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26 @param classlist list of class names (list of strings)
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27 """
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28 super(ModuleModel, self).__init__(name)
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29
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30 self.classlist = classlist
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31
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32 def addClass(self, classname):
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33 """
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34 Method to add a class to the module model.
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35
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36 @param classname class name to be added (string)
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37 """
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38 self.classlist.append(classname)
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39
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40 def getClasses(self):
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41 """
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42 Method to retrieve the classes of the module.
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43
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44 @return list of class names (list of strings)
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45 """
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46 return self.classlist[:]
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47
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48
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49 class ModuleItem(UMLItem):
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50 """
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51 Class implementing a module item.
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52 """
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53 ItemType = "module"
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54
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55 def __init__(self, model=None, x=0, y=0, rounded=False,
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56 parent=None, scene=None):
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57 """
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58 Constructor
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59
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60 @param model module model containing the module data (ModuleModel)
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61 @param x x-coordinate (integer)
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62 @param y y-coordinate (integer)
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63 @keyparam rounded flag indicating a rounded corner (boolean)
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64 @keyparam parent reference to the parent object (QGraphicsItem)
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65 @keyparam scene reference to the scene object (QGraphicsScene)
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66 """
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67 UMLItem.__init__(self, model, x, y, rounded, parent)
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68
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69 scene.addItem(self)
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70
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71 if self.model:
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72 self.__createTexts()
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73 self.__calculateSize()
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74
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75 def __createTexts(self):
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76 """
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77 Private method to create the text items of the module item.
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78 """
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79 if self.model is None:
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80 return
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81
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82 boldFont = QFont(self.font)
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83 boldFont.setBold(True)
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84
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85 classes = self.model.getClasses()
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86
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87 x = self.margin + self.rect().x()
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88 y = self.margin + self.rect().y()
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89 self.header = QGraphicsSimpleTextItem(self)
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90 self.header.setFont(boldFont)
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91 self.header.setText(self.model.getName())
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92 self.header.setPos(x, y)
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93 y += self.header.boundingRect().height() + self.margin
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94 if classes:
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95 txt = "\n".join(classes)
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96 else:
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97 txt = " "
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98 self.classes = QGraphicsSimpleTextItem(self)
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99 self.classes.setFont(self.font)
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100 self.classes.setText(txt)
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101 self.classes.setPos(x, y)
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102
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103 def __calculateSize(self):
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104 """
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105 Private method to calculate the size of the module item.
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106 """
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107 if self.model is None:
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108 return
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109
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110 width = self.header.boundingRect().width()
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111 height = self.header.boundingRect().height()
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112 if self.classes:
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113 width = max(width, self.classes.boundingRect().width())
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114 height = height + self.classes.boundingRect().height()
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115 self.setSize(width + 2 * self.margin, height + 2 * self.margin)
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116
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117 def setModel(self, model):
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118 """
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119 Method to set the module model.
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120
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121 @param model module model containing the module data (ModuleModel)
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122 """
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123 self.scene().removeItem(self.header)
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124 self.header = None
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125 if self.classes:
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126 self.scene().removeItem(self.classes)
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127 self.meths = None
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128 self.model = model
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129 self.__createTexts()
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130 self.__calculateSize()
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131
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132 def paint(self, painter, option, widget=None):
0
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133 """
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134 Public method to paint the item in local coordinates.
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135
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136 @param painter reference to the painter object (QPainter)
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137 @param option style options (QStyleOptionGraphicsItem)
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138 @param widget optional reference to the widget painted on (QWidget)
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139 """
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140 pen = self.pen()
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141 if (option.state & QStyle.State_Selected) == \
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142 QStyle.State(QStyle.State_Selected):
0
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143 pen.setWidth(2)
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144 else:
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145 pen.setWidth(1)
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146
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147 painter.setPen(pen)
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148 painter.setBrush(self.brush())
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149 painter.setFont(self.font)
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150
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151 offsetX = self.rect().x()
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152 offsetY = self.rect().y()
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153 w = self.rect().width()
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154 h = self.rect().height()
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155
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156 painter.drawRect(offsetX, offsetY, w, h)
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157 y = self.margin + self.header.boundingRect().height()
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158 painter.drawLine(offsetX, offsetY + y, offsetX + w - 1, offsetY + y)
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159
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160 self.adjustAssociations()
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161
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162 def buildItemDataString(self):
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163 """
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164 Public method to build a string to persist the specific item data.
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165
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166 This string must start with ", " and should be built like
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167 "attribute=value" with pairs separated by ", ". value must not
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168 contain ", " or newlines.
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169
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170 @return persistence data (string)
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171 """
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172 entries = [
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173 "name={0}".format(self.model.getName()),
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174 ]
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175 classes = self.model.getClasses()
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176 if classes:
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177 entries.append("classes={0}".format("||".join(classes)))
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178
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179 return ", " + ", ".join(entries)
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180
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181 def parseItemDataString(self, version, data):
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182 """
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183 Public method to parse the given persistence data.
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184
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185 @param version version of the data (string)
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186 @param data persisted data to be parsed (string)
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187 @return flag indicating success (boolean)
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188 """
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189 parts = data.split(", ")
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190 if len(parts) < 1:
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191 return False
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192
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193 name = ""
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194 classes = []
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195
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196 for part in parts:
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197 key, value = part.split("=", 1)
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198 if key == "name":
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199 name = value.strip()
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200 elif key == "classes":
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201 classes = value.strip().split("||")
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202 else:
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203 return False
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204
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205 self.model = ModuleModel(name, classes)
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206 self.__createTexts()
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207 self.__calculateSize()
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208
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209 return True

eric ide

mercurial