Graphics/UMLClassDiagramBuilder.py

Sun, 03 Nov 2013 15:58:22 +0100

author
T.Rzepka <Tobias.Rzepka@gmail.com>
date
Sun, 03 Nov 2013 15:58:22 +0100
branch
Py2 comp.
changeset 3060
5883ce99ee12
parent 3057
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parent 3035
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child 3145
a9de05d4a22f
permissions
-rw-r--r--

Merge with default branch after fixed indentation issues and lates changes.

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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 dialog showing a UML like class diagram.
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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 try: # Py3
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12 from itertools import zip_longest
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13 except ImportError:
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14 from itertools import izip_longest as zip_longest
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15
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16 from PyQt4.QtGui import QGraphicsTextItem
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17
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18 import Utilities
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19 import Preferences
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20
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21 from .UMLDiagramBuilder import UMLDiagramBuilder
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22
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23
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24 class UMLClassDiagramBuilder(UMLDiagramBuilder):
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25 """
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26 Class implementing a builder for UML like class diagrams.
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27 """
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28 def __init__(self, dialog, view, project, file, noAttrs=False):
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29 """
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30 Constructor
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31
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32 @param dialog reference to the UML dialog (UMLDialog)
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33 @param view reference to the view object (UMLGraphicsView)
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34 @param project reference to the project object (Project)
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35 @param file file name of a python module to be shown (string)
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36 @keyparam noAttrs flag indicating, that no attributes should be shown
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37 (boolean)
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38 """
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39 super(UMLClassDiagramBuilder, self).__init__(dialog, view, project)
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40 self.setObjectName("UMLClassDiagramBuilder")
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41
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42 self.file = file
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43 self.noAttrs = noAttrs
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44
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45 def initialize(self):
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46 """
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47 Public method to initialize the object.
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48 """
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49 pname = self.project.getProjectName()
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50 if pname and self.project.isProjectSource(self.file):
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51 name = self.trUtf8("Class Diagram {0}: {1}").format(
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52 pname, self.project.getRelativePath(self.file))
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53 else:
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54 name = self.trUtf8("Class Diagram: {0}").format(self.file)
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55 self.umlView.setDiagramName(name)
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56
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57 def __getCurrentShape(self, name):
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58 """
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59 Private method to get the named shape.
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60
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61 @param name name of the shape (string)
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62 @return shape (QGraphicsItem)
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63 """
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64 return self.allClasses.get(name)
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65
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66 def buildDiagram(self):
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67 """
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68 Public method to build the class shapes of the class diagram.
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69
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70 The algorithm is borrowed from Boa Constructor.
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71 """
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72 import Utilities.ModuleParser
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73
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74 self.allClasses = {}
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75 self.allModules = {}
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76
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77 try:
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78 extensions = Preferences.getPython("PythonExtensions") + \
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79 Preferences.getPython("Python3Extensions") + ['.rb']
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80 module = Utilities.ModuleParser.readModule(
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81 self.file, extensions=extensions, caching=False)
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82 except ImportError:
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83 ct = QGraphicsTextItem(None)
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84 ct.setHtml(
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85 self.trUtf8("The module <b>'{0}'</b> could not be found.")
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86 .format(self.file))
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87 self.scene.addItem(ct)
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88 return
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89
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90 if self.file not in self.allModules:
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91 self.allModules[self.file] = []
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92
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93 routes = []
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94 nodes = []
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95 todo = [module.createHierarchy()]
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96 classesFound = False
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97 while todo:
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98 hierarchy = todo[0]
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99 for className in hierarchy:
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100 classesFound = True
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101 cw = self.__getCurrentShape(className)
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102 if not cw and className.find('.') >= 0:
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103 cw = self.__getCurrentShape(className.split('.')[-1])
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104 if cw:
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105 self.allClasses[className] = cw
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106 if className not in self.allModules[self.file]:
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107 self.allModules[self.file].append(className)
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108 if cw and cw.noAttrs != self.noAttrs:
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109 cw = None
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110 if cw and not (cw.external and
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111 (className in module.classes or
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112 className in module.modules)):
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113 if cw.scene() != self.scene:
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114 self.scene.addItem(cw)
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115 cw.setPos(10, 10)
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116 if className not in nodes:
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117 nodes.append(className)
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118 else:
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119 if className in module.classes:
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120 # this is a local class (defined in this module)
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121 self.__addLocalClass(
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122 className, module.classes[className], 0, 0)
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123 elif className in module.modules:
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124 # this is a local module (defined in this module)
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125 self.__addLocalClass(
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126 className, module.modules[className], 0, 0, True)
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127 else:
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128 self.__addExternalClass(className, 0, 0)
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parents:
diff changeset
129 nodes.append(className)
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parents:
diff changeset
130
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
131 if hierarchy.get(className):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
132 todo.append(hierarchy.get(className))
12
1d8dd9706f46 First commit after changing to Python 3.1.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 0
diff changeset
133 children = list(hierarchy.get(className).keys())
0
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parents:
diff changeset
134 for child in children:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
135 if (className, child) not in routes:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
136 routes.append((className, child))
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
137
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
138 del todo[0]
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parents:
diff changeset
139
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
140 if classesFound:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
141 self.__arrangeClasses(nodes, routes[:])
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
142 self.__createAssociations(routes)
2027
144463496a54 A few fixes for issues with the graphics dialogs.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2026
diff changeset
143 self.umlView.autoAdjustSceneSize(limit=True)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
144 else:
2094
88620e11c67c Made the seventh set of Qt5 compatibility changes.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2039
diff changeset
145 ct = QGraphicsTextItem(None)
2992
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2953
diff changeset
146 ct.setHtml(self.trUtf8(
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2953
diff changeset
147 "The module <b>'{0}'</b> does not contain any classes.")
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
148 .format(self.file))
2094
88620e11c67c Made the seventh set of Qt5 compatibility changes.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2039
diff changeset
149 self.scene.addItem(ct)
0
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parents:
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150
945
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 791
diff changeset
151 def __arrangeClasses(self, nodes, routes, whiteSpaceFactor=1.2):
0
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parents:
diff changeset
152 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
153 Private method to arrange the shapes on the canvas.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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154
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
155 The algorithm is borrowed from Boa Constructor.
2953
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parents: 2402
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156
703452a2876f Started correcting doc strings by using the new doc string checker.
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parents: 2402
diff changeset
157 @param nodes list of nodes to arrange
703452a2876f Started correcting doc strings by using the new doc string checker.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2402
diff changeset
158 @param routes list of routes
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2402
diff changeset
159 @param whiteSpaceFactor factor to increase whitespace between
703452a2876f Started correcting doc strings by using the new doc string checker.
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parents: 2402
diff changeset
160 items (float)
0
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parents:
diff changeset
161 """
2401
4f428de32b69 Continued implementing the delayed import.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
162 from . import GraphicsUtilities
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
163 generations = GraphicsUtilities.sort(nodes, routes)
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parents:
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164
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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165 # calculate width and height of all elements
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
166 sizes = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
167 for generation in generations:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
168 sizes.append([])
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
169 for child in generation:
2992
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2953
diff changeset
170 sizes[-1].append(
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2953
diff changeset
171 self.__getCurrentShape(child).sceneBoundingRect())
0
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parents:
diff changeset
172
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
173 # calculate total width and total height
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
174 width = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
175 height = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
176 widths = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
177 heights = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
178 for generation in sizes:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
179 currentWidth = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
180 currentHeight = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
181
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
182 for rect in generation:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
183 if rect.bottom() > currentHeight:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
184 currentHeight = rect.bottom()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
185 currentWidth = currentWidth + rect.right()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
186
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
187 # update totals
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
188 if currentWidth > width:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
189 width = currentWidth
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
190 height = height + currentHeight
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
191
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
192 # store generation info
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
193 widths.append(currentWidth)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
194 heights.append(currentHeight)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
195
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
196 # add in some whitespace
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
197 width = width * whiteSpaceFactor
2027
144463496a54 A few fixes for issues with the graphics dialogs.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2026
diff changeset
198 ## rawHeight = height
0
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parents:
diff changeset
199 height = height * whiteSpaceFactor - 20
2027
144463496a54 A few fixes for issues with the graphics dialogs.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2026
diff changeset
200 ## verticalWhiteSpace = max(
144463496a54 A few fixes for issues with the graphics dialogs.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2026
diff changeset
201 ## (height - rawHeight) / (len(generations) - 1.0 or 2.0),
144463496a54 A few fixes for issues with the graphics dialogs.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2026
diff changeset
202 ## 40.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2026
diff changeset
203 ## )
144463496a54 A few fixes for issues with the graphics dialogs.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2026
diff changeset
204 verticalWhiteSpace = 40.0
0
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parents:
diff changeset
205
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
206 sceneRect = self.umlView.sceneRect()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
207 width += 50.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
208 height += 50.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
209 swidth = width < sceneRect.width() and sceneRect.width() or width
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
210 sheight = height < sceneRect.height() and sceneRect.height() or height
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
211 self.umlView.setSceneSize(swidth, sheight)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
212
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
213 # distribute each generation across the width and the
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
214 # generations across height
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
215 y = 10.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
216 for currentWidth, currentHeight, generation in \
2602
affc66a603c7 Fixes for changed API.
T.Rzepka <Tobias.Rzepka@gmail.com>
parents: 2525
diff changeset
217 zip_longest(widths, heights, generations):
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
218 x = 10.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
219 # whiteSpace is the space between any two elements
2992
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2953
diff changeset
220 whiteSpace = (width - currentWidth - 20) / \
dbdf27746da5 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2953
diff changeset
221 (len(generation) - 1.0 or 2.0)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
222 for className in generation:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
223 cw = self.__getCurrentShape(className)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
224 cw.setPos(x, y)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
225 rect = cw.sceneBoundingRect()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
226 x = x + rect.width() + whiteSpace
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
227 y = y + currentHeight + verticalWhiteSpace
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
228
945
8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 791
diff changeset
229 def __addLocalClass(self, className, _class, x, y, isRbModule=False):
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
230 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
231 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
232
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
233 @param className name of the class to be as a dictionary key (string)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
234 @param _class class to be shown (ModuleParser.Class)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
235 @param x x-coordinate (float)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
236 @param y y-coordinate (float)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
237 @param isRbModule flag indicating a Ruby module (boolean)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
238 """
2401
4f428de32b69 Continued implementing the delayed import.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2302
diff changeset
239 from .ClassItem import ClassItem, ClassModel
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
240 meths = sorted(_class.methods.keys())
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
241 attrs = sorted(_class.attributes.keys())
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
242 name = _class.name
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
243 if isRbModule:
413
3d82e6eb3516 Did some more string format conversions.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 35
diff changeset
244 name = "{0} (Module)".format(name)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
245 cl = ClassModel(name, meths[:], attrs[:])
945
8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 791
diff changeset
246 cw = ClassItem(cl, False, x, y, noAttrs=self.noAttrs, scene=self.scene)
2030
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2027
diff changeset
247 cw.setId(self.umlView.getItemId())
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
248 self.allClasses[className] = cw
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
249 if _class.name not in self.allModules[self.file]:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
250 self.allModules[self.file].append(_class.name)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
251
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
252 def __addExternalClass(self, _class, x, y):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
253 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
254 Private method to add a class defined outside the module.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
255
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
256 If the canvas is too small to take the shape, it
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
257 is enlarged.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
258
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
259 @param _class class to be shown (string)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
260 @param x x-coordinate (float)
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261 @param y y-coordinate (float)
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262 """
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263 from .ClassItem import ClassItem, ClassModel
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264 cl = ClassModel(_class)
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265 cw = ClassItem(cl, True, x, y, noAttrs=self.noAttrs, scene=self.scene)
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266 cw.setId(self.umlView.getItemId())
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267 self.allClasses[_class] = cw
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268 if _class not in self.allModules[self.file]:
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269 self.allModules[self.file].append(_class)
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270
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271 def __createAssociations(self, routes):
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272 """
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273 Private method to generate the associations between the class shapes.
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274
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275 @param routes list of relationsships
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276 """
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277 from .AssociationItem import AssociationItem, Generalisation
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278 for route in routes:
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279 if len(route) > 1:
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280 assoc = AssociationItem(
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281 self.__getCurrentShape(route[1]),
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282 self.__getCurrentShape(route[0]),
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283 Generalisation,
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284 topToBottom=True)
0
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285 self.scene.addItem(assoc)
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286
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287 def getPersistenceData(self):
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288 """
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289 Public method to get a string for data to be persisted.
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290
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291 @return persisted data string (string)
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292 """
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293 return "file={0}, no_attributes={1}".format(self.file, self.noAttrs)
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294
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295 def parsePersistenceData(self, version, data):
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296 """
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297 Public method to parse persisted data.
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298
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299 @param version version of the data (string)
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300 @param data persisted data to be parsed (string)
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301 @return flag indicating success (boolean)
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302 """
2034
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303 parts = data.split(", ")
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304 if len(parts) != 2 or \
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305 not parts[0].startswith("file=") or \
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306 not parts[1].startswith("no_attributes="):
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307 return False
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308
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309 self.file = parts[0].split("=", 1)[1].strip()
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310 self.noAttrs = Utilities.toBool(parts[1].split("=", 1)[1].strip())
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311
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312 self.initialize()
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313
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314 return True

eric ide

mercurial