Graphics/PackageDiagram.py

Mon, 26 Dec 2011 19:31:22 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Mon, 26 Dec 2011 19:31:22 +0100
changeset 1509
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parent 1112
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child 1845
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permissions
-rw-r--r--

Updated copyright for 2012.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2007 - 2012 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 dialog showing a UML like class diagram of a package.
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8 """
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9
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10 import glob
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11 import os.path
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12 import itertools
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13
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14 from PyQt4.QtGui import QProgressDialog, QApplication, QGraphicsTextItem
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15
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16 from .UMLDialog import UMLDialog
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17 from .ClassItem import ClassItem, ClassModel
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18 from .AssociationItem import AssociationItem, Generalisation
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19 from . import GraphicsUtilities
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20
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21 import Utilities.ModuleParser
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22 import Utilities
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23 import Preferences
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24
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25
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26 class PackageDiagram(UMLDialog):
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27 """
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28 Class implementing a dialog showing a UML like class diagram of a package.
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29 """
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30 def __init__(self, package, parent=None, name=None, noAttrs=False):
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31 """
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32 Constructor
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33
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34 @param package name of a python package to be shown (string)
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35 @param parent parent widget of the view (QWidget)
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36 @param name name of the view widget (string)
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37 @keyparam noAttrs flag indicating, that no attributes should be shown (boolean)
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38 """
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39 self.package = Utilities.normabspath(package)
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40 self.allClasses = {}
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41 self.noAttrs = noAttrs
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42
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43 UMLDialog.__init__(self, self.package, parent)
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44
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45 if not name:
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46 self.setObjectName("PackageDiagram")
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47 else:
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48 self.setObjectName(name)
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49
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50 self.umlView.relayout.connect(self.relayout)
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51
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52 def __getCurrentShape(self, name):
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53 """
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54 Private method to get the named shape.
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55
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56 @param name name of the shape (string)
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57 @return shape (QCanvasItem)
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58 """
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59 return self.allClasses.get(name)
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60
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61 def __buildModulesDict(self):
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62 """
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63 Private method to build a dictionary of modules contained in the package.
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64
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65 @return dictionary of modules contained in the package.
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66 """
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67 supportedExt = \
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68 ['*{0}'.format(ext) for ext in Preferences.getPython("PythonExtensions")] + \
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69 ['*{0}'.format(ext) for ext in Preferences.getPython("Python3Extensions")] + \
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70 ['*.rb']
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71
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72 moduleDict = {}
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73 modules = []
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74 for ext in supportedExt:
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75 modules.extend(glob.glob(Utilities.normjoinpath(self.package, ext)))
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76 tot = len(modules)
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77 try:
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78 prog = 0
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79 progress = QProgressDialog(self.trUtf8("Parsing modules..."),
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80 None, 0, tot, self)
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81 progress.show()
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82 QApplication.processEvents()
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83 for module in modules:
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84 progress.setValue(prog)
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85 QApplication.processEvents()
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86 prog += 1
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87 try:
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88 mod = Utilities.ModuleParser.readModule(module)
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89 except ImportError:
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90 continue
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91 else:
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92 name = mod.name
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93 if name.startswith(self.package):
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94 name = name[len(self.package) + 1:]
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95 moduleDict[name] = mod
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96 finally:
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97 progress.setValue(tot)
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98 return moduleDict
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99
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100 def __buildClasses(self):
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101 """
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102 Private method to build the class shapes of the package diagram.
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103
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104 The algorithm is borrowed from Boa Constructor.
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105 """
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106 initlist = glob.glob(os.path.join(self.package, '__init__.*'))
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107 if len(initlist) == 0:
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108 ct = QGraphicsTextItem(None, self.scene)
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109 ct.setHtml(
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110 self.trUtf8("The directory <b>'{0}'</b> is not a package.")\
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111 .format(self.package))
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112 return
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113
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114 modules = self.__buildModulesDict()
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115 if not modules:
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116 ct = QGraphicsTextItem(None, self.scene)
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117 ct.setHtml(
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118 self.trUtf8("The package <b>'{0}'</b> does not contain any modules.")
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119 .format(self.package))
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120 return
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121
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122 # step 1: build all classes found in the modules
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123 classesFound = False
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124
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125 for modName in list(modules.keys()):
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126 module = modules[modName]
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127 for cls in list(module.classes.keys()):
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128 classesFound = True
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129 self.__addLocalClass(cls, module.classes[cls], 0, 0)
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130 if not classesFound:
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131 ct = QGraphicsTextItem(None, self.scene)
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132 ct.setHtml(
0
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parents:
diff changeset
133 self.trUtf8("The package <b>'{0}'</b> does not contain any classes.")
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parents:
diff changeset
134 .format(self.package))
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
135 return
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
136
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
137 # step 2: build the class hierarchies
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
138 routes = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
139 nodes = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
140
12
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parents: 0
diff changeset
141 for modName in list(modules.keys()):
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
142 module = modules[modName]
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
143 todo = [module.createHierarchy()]
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
144 while todo:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
145 hierarchy = todo[0]
12
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parents: 0
diff changeset
146 for className in list(hierarchy.keys()):
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
147 cw = self.__getCurrentShape(className)
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parents:
diff changeset
148 if not cw and className.find('.') >= 0:
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parents:
diff changeset
149 cw = self.__getCurrentShape(className.split('.')[-1])
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
150 if cw:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
151 self.allClasses[className] = cw
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parents:
diff changeset
152 if cw and cw.noAttrs != self.noAttrs:
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parents:
diff changeset
153 cw = None
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
154 if cw and not (cw.external and \
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
155 (className in module.classes or
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
156 className in module.modules)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
157 ):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
158 if className not in nodes:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
159 nodes.append(className)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
160 else:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
161 if className in module.classes:
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parents:
diff changeset
162 # this is a local class (defined in this module)
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parents: 791
diff changeset
163 self.__addLocalClass(className, module.classes[className],
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
164 0, 0)
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parents:
diff changeset
165 elif className in module.modules:
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parents:
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166 # this is a local module (defined in this module)
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parents: 791
diff changeset
167 self.__addLocalClass(className, module.modules[className],
0
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parents:
diff changeset
168 0, 0, True)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
169 else:
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parents:
diff changeset
170 self.__addExternalClass(className, 0, 0)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
171 nodes.append(className)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
172
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
173 if hierarchy.get(className):
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parents:
diff changeset
174 todo.append(hierarchy.get(className))
12
1d8dd9706f46 First commit after changing to Python 3.1.
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parents: 0
diff changeset
175 children = list(hierarchy.get(className).keys())
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
176 for child in children:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
177 if (className, child) not in routes:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
178 routes.append((className, child))
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parents:
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179
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parents:
diff changeset
180 del todo[0]
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parents:
diff changeset
181
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
182 self.__arrangeClasses(nodes, routes[:])
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
183 self.__createAssociations(routes)
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parents:
diff changeset
184
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parents: 791
diff changeset
185 def __arrangeClasses(self, nodes, routes, whiteSpaceFactor=1.2):
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
186 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
187 Private method to arrange the shapes on the canvas.
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parents:
diff changeset
188
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parents:
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189 The algorithm is borrowed from Boa Constructor.
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parents:
diff changeset
190 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
191 generations = GraphicsUtilities.sort(nodes, routes)
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parents:
diff changeset
192
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
193 # calculate width and height of all elements
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
194 sizes = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
195 for generation in generations:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
196 sizes.append([])
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
197 for child in generation:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
198 sizes[-1].append(self.__getCurrentShape(child).sceneBoundingRect())
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parents:
diff changeset
199
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
200 # calculate total width and total height
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
201 width = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
202 height = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
203 widths = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
204 heights = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
205 for generation in sizes:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
206 currentWidth = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
207 currentHeight = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
208
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
209 for rect in generation:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
210 if rect.bottom() > currentHeight:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
211 currentHeight = rect.bottom()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
212 currentWidth = currentWidth + rect.right()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
213
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
214 # update totals
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
215 if currentWidth > width:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
216 width = currentWidth
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
217 height = height + currentHeight
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
218
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
219 # store generation info
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
220 widths.append(currentWidth)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
221 heights.append(currentHeight)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
222
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
223 # add in some whitespace
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
224 width = width * whiteSpaceFactor
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
225 rawHeight = height
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
226 height = height * whiteSpaceFactor - 20
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
227 verticalWhiteSpace = (height - rawHeight) / (len(generations) - 1.0 or 2.0)
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parents:
diff changeset
228
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
229 sceneRect = self.umlView.sceneRect()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
230 width += 50.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
231 height += 50.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
232 swidth = width < sceneRect.width() and sceneRect.width() or width
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parents:
diff changeset
233 sheight = height < sceneRect.height() and sceneRect.height() or height
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parents:
diff changeset
234 self.umlView.setSceneSize(swidth, sheight)
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parents:
diff changeset
235
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
236 # distribute each generation across the width and the
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
237 # generations across height
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
238 y = 10.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
239 for currentWidth, currentHeight, generation in \
35
42f5cfc851da Ported the UML like diagrams.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 28
diff changeset
240 itertools.zip_longest(widths, heights, generations):
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
241 x = 10.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
242 # whiteSpace is the space between any two elements
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
243 whiteSpace = (width - currentWidth - 20) / (len(generation) - 1.0 or 2.0)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
244 for className in generation:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
245 cw = self.__getCurrentShape(className)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
246 cw.setPos(x, y)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
247 rect = cw.sceneBoundingRect()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
248 x = x + rect.width() + whiteSpace
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
249 y = y + currentHeight + verticalWhiteSpace
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
250
945
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 791
diff changeset
251 def __addLocalClass(self, className, _class, x, y, isRbModule=False):
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
252 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
253 Private method to add a class defined in the module.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
254
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parents:
diff changeset
255 @param className name of the class to be as a dictionary key (string)
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parents:
diff changeset
256 @param _class class to be shown (ModuleParser.Class)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
257 @param x x-coordinate (float)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
258 @param y y-coordinate (float)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
259 @param isRbModule flag indicating a Ruby module (boolean)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
260 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
261 meths = sorted(_class.methods.keys())
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
262 attrs = sorted(_class.attributes.keys())
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
263 name = _class.name
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
264 if isRbModule:
413
3d82e6eb3516 Did some more string format conversions.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 40
diff changeset
265 name = "{0} (Module)".format(name)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
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266 cl = ClassModel(name, meths[:], attrs[:])
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267 cw = ClassItem(cl, False, x, y, noAttrs=self.noAttrs, scene=self.scene)
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268 self.allClasses[className] = cw
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269
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270 def __addExternalClass(self, _class, x, y):
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271 """
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272 Private method to add a class defined outside the module.
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273
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274 If the canvas is too small to take the shape, it
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275 is enlarged.
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276
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277 @param _class class to be shown (string)
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278 @param x x-coordinate (float)
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279 @param y y-coordinate (float)
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280 """
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281 cl = ClassModel(_class)
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282 cw = ClassItem(cl, True, x, y, noAttrs=self.noAttrs, scene=self.scene)
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283 self.allClasses[_class] = cw
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284
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285 def __createAssociations(self, routes):
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286 """
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287 Private method to generate the associations between the class shapes.
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288
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289 @param routes list of relationsships
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290 """
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291 for route in routes:
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292 if len(route) > 1:
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293 assoc = AssociationItem(
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294 self.__getCurrentShape(route[1]),
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295 self.__getCurrentShape(route[0]),
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296 Generalisation)
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297 self.scene.addItem(assoc)
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298
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299 def show(self):
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300 """
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301 Overriden method to show the dialog.
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302 """
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303 self.__buildClasses()
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304 UMLDialog.show(self)
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305
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306 def relayout(self):
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307 """
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308 Method to relayout the diagram.
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309 """
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310 self.allClasses.clear()
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311 self.__buildClasses()

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