Graphics/PackageDiagramBuilder.py

Mon, 10 Sep 2012 18:42:28 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Mon, 10 Sep 2012 18:42:28 +0200
changeset 2034
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parent 2033
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child 2037
7a3470ae170e
permissions
-rw-r--r--

Implemented functions to load UML graphics from disc.

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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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16 from .UMLDiagramBuilder import UMLDiagramBuilder
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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 PackageDiagramBuilder(UMLDiagramBuilder):
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27 """
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28 Class implementing a builder for UML like class diagrams of a package.
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29 """
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30 def __init__(self, dialog, view, project, package, noAttrs=False):
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31 """
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32 Constructor
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33
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34 @param dialog reference to the UML dialog (UMLDialog)
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35 @param view reference to the view object (UMLGraphicsView)
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36 @param project reference to the project object (Project)
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37 @param package name of a python package to be shown (string)
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38 @keyparam noAttrs flag indicating, that no attributes should be shown (boolean)
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39 """
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40 super().__init__(dialog, view, project)
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41 self.setObjectName("PackageDiagram")
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42
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43 self.package = Utilities.normabspath(package)
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44 self.noAttrs = noAttrs
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45
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46 def initialize(self):
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47 """
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48 Public method to initialize the object.
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49 """
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50 pname = self.project.getProjectName()
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51 if pname:
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52 name = self.trUtf8("Package Diagram {0}: {1}").format(
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53 pname, self.project.getRelativePath(self.package))
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54 else:
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55 name = self.trUtf8("Package Diagram: {0}").format(self.package)
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56 self.umlView.setDiagramName(name)
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57
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58 def __getCurrentShape(self, name):
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59 """
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60 Private method to get the named shape.
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61
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62 @param name name of the shape (string)
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63 @return shape (QCanvasItem)
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64 """
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65 return self.allClasses.get(name)
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66
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67 def __buildModulesDict(self):
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68 """
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69 Private method to build a dictionary of modules contained in the package.
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70
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71 @return dictionary of modules contained in the package.
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72 """
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73 supportedExt = \
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74 ['*{0}'.format(ext) for ext in Preferences.getPython("PythonExtensions")] + \
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75 ['*{0}'.format(ext) for ext in Preferences.getPython("Python3Extensions")] + \
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76 ['*.rb']
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77 extensions = Preferences.getPython("PythonExtensions") + \
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78 Preferences.getPython("Python3Extensions") + ['.rb']
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79
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80 moduleDict = {}
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81 modules = []
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82 for ext in supportedExt:
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83 modules.extend(glob.glob(Utilities.normjoinpath(self.package, ext)))
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84 tot = len(modules)
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85 try:
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86 prog = 0
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87 progress = QProgressDialog(self.trUtf8("Parsing modules..."),
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88 None, 0, tot, self.parent())
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89 progress.show()
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90 QApplication.processEvents()
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91 for module in modules:
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92 progress.setValue(prog)
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93 QApplication.processEvents()
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94 prog += 1
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95 try:
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96 mod = Utilities.ModuleParser.readModule(module, extensions=extensions)
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97 except ImportError:
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98 continue
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99 else:
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100 name = mod.name
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101 if name.startswith(self.package):
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102 name = name[len(self.package) + 1:]
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103 moduleDict[name] = mod
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104 finally:
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105 progress.setValue(tot)
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106 return moduleDict
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107
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108 def buildDiagram(self):
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109 """
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110 Public method to build the class shapes of the package diagram.
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111
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112 The algorithm is borrowed from Boa Constructor.
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113 """
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114 self.allClasses = {}
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115
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116 initlist = glob.glob(os.path.join(self.package, '__init__.*'))
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117 if len(initlist) == 0:
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118 ct = QGraphicsTextItem(None, self.scene)
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119 ct.setHtml(
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120 self.trUtf8("The directory <b>'{0}'</b> is not a package.")\
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121 .format(self.package))
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122 return
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123
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124 modules = self.__buildModulesDict()
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125 if not modules:
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126 ct = QGraphicsTextItem(None, self.scene)
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127 ct.setHtml(
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128 self.trUtf8("The package <b>'{0}'</b> does not contain any modules.")
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129 .format(self.package))
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parents:
diff changeset
130 return
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parents:
diff changeset
131
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parents:
diff changeset
132 # step 1: build all classes found in the modules
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parents:
diff changeset
133 classesFound = False
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parents:
diff changeset
134
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parents: 0
diff changeset
135 for modName in list(modules.keys()):
0
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parents:
diff changeset
136 module = modules[modName]
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diff changeset
137 for cls in list(module.classes.keys()):
0
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parents:
diff changeset
138 classesFound = True
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parents:
diff changeset
139 self.__addLocalClass(cls, module.classes[cls], 0, 0)
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parents:
diff changeset
140 if not classesFound:
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parents:
diff changeset
141 ct = QGraphicsTextItem(None, self.scene)
564
b3d966393ba9 Did some code cleanup.
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parents: 483
diff changeset
142 ct.setHtml(
0
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parents:
diff changeset
143 self.trUtf8("The package <b>'{0}'</b> does not contain any classes.")
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parents:
diff changeset
144 .format(self.package))
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parents:
diff changeset
145 return
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parents:
diff changeset
146
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parents:
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147 # step 2: build the class hierarchies
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
148 routes = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
149 nodes = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
150
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parents: 0
diff changeset
151 for modName in list(modules.keys()):
0
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parents:
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152 module = modules[modName]
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parents:
diff changeset
153 todo = [module.createHierarchy()]
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parents:
diff changeset
154 while todo:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
155 hierarchy = todo[0]
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parents: 0
diff changeset
156 for className in list(hierarchy.keys()):
0
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parents:
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157 cw = self.__getCurrentShape(className)
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parents:
diff changeset
158 if not cw and className.find('.') >= 0:
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parents:
diff changeset
159 cw = self.__getCurrentShape(className.split('.')[-1])
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parents:
diff changeset
160 if cw:
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parents:
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161 self.allClasses[className] = cw
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parents:
diff changeset
162 if cw and cw.noAttrs != self.noAttrs:
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parents:
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163 cw = None
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parents:
diff changeset
164 if cw and not (cw.external and \
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parents:
diff changeset
165 (className in module.classes or
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parents:
diff changeset
166 className in module.modules)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
167 ):
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parents:
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168 if className not in nodes:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
169 nodes.append(className)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
170 else:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
171 if className in module.classes:
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parents:
diff changeset
172 # this is a local class (defined in this module)
945
8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
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parents: 791
diff changeset
173 self.__addLocalClass(className, module.classes[className],
0
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parents:
diff changeset
174 0, 0)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
175 elif className in module.modules:
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parents:
diff changeset
176 # this is a local module (defined in this module)
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8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
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parents: 791
diff changeset
177 self.__addLocalClass(className, module.modules[className],
0
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parents:
diff changeset
178 0, 0, True)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
179 else:
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parents:
diff changeset
180 self.__addExternalClass(className, 0, 0)
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parents:
diff changeset
181 nodes.append(className)
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parents:
diff changeset
182
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
183 if hierarchy.get(className):
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parents:
diff changeset
184 todo.append(hierarchy.get(className))
12
1d8dd9706f46 First commit after changing to Python 3.1.
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parents: 0
diff changeset
185 children = list(hierarchy.get(className).keys())
0
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parents:
diff changeset
186 for child in children:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
187 if (className, child) not in routes:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
188 routes.append((className, child))
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parents:
diff changeset
189
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parents:
diff changeset
190 del todo[0]
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parents:
diff changeset
191
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
192 self.__arrangeClasses(nodes, routes[:])
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
193 self.__createAssociations(routes)
2027
144463496a54 A few fixes for issues with the graphics dialogs.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2026
diff changeset
194 self.umlView.autoAdjustSceneSize(limit=True)
2033
4b99609f6a87 Some more refactorings to prepare loading graphics diagrams from file.
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parents: 2031
diff changeset
195
945
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diff changeset
196 def __arrangeClasses(self, nodes, routes, whiteSpaceFactor=1.2):
0
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parents:
diff changeset
197 """
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parents:
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198 Private method to arrange the shapes on the canvas.
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parents:
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199
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parents:
diff changeset
200 The algorithm is borrowed from Boa Constructor.
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parents:
diff changeset
201 """
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parents:
diff changeset
202 generations = GraphicsUtilities.sort(nodes, routes)
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parents:
diff changeset
203
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parents:
diff changeset
204 # calculate width and height of all elements
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
205 sizes = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
206 for generation in generations:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
207 sizes.append([])
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
208 for child in generation:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
209 sizes[-1].append(self.__getCurrentShape(child).sceneBoundingRect())
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
210
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
211 # calculate total width and total height
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
212 width = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
213 height = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
214 widths = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
215 heights = []
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
216 for generation in sizes:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
217 currentWidth = 0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
218 currentHeight = 0
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parents:
diff changeset
219
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
220 for rect in generation:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
221 if rect.bottom() > currentHeight:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
222 currentHeight = rect.bottom()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
223 currentWidth = currentWidth + rect.right()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
224
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
225 # update totals
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
226 if currentWidth > width:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
227 width = currentWidth
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
228 height = height + currentHeight
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
229
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parents:
diff changeset
230 # store generation info
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
231 widths.append(currentWidth)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
232 heights.append(currentHeight)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
233
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
234 # add in some whitespace
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
235 width = width * whiteSpaceFactor
2028
30247d523fdb A few more Graphics fixes.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2027
diff changeset
236 ## rawHeight = height
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
237 height = height * whiteSpaceFactor - 20
2028
30247d523fdb A few more Graphics fixes.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2027
diff changeset
238 ## verticalWhiteSpace = max(
30247d523fdb A few more Graphics fixes.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2027
diff changeset
239 ## (height - rawHeight) / (len(generations) - 1.0 or 2.0),
30247d523fdb A few more Graphics fixes.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2027
diff changeset
240 ## 40.0
30247d523fdb A few more Graphics fixes.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2027
diff changeset
241 ## )
30247d523fdb A few more Graphics fixes.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2027
diff changeset
242 verticalWhiteSpace = 40.0
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
243
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
244 sceneRect = self.umlView.sceneRect()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
245 width += 50.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
246 height += 50.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
247 swidth = width < sceneRect.width() and sceneRect.width() or width
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
248 sheight = height < sceneRect.height() and sceneRect.height() or height
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parents:
diff changeset
249 self.umlView.setSceneSize(swidth, sheight)
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parents:
diff changeset
250
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
251 # distribute each generation across the width and the
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
252 # generations across height
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
253 y = 10.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
254 for currentWidth, currentHeight, generation in \
35
42f5cfc851da Ported the UML like diagrams.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 28
diff changeset
255 itertools.zip_longest(widths, heights, generations):
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
256 x = 10.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
257 # whiteSpace is the space between any two elements
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
258 whiteSpace = (width - currentWidth - 20) / (len(generation) - 1.0 or 2.0)
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parents:
diff changeset
259 for className in generation:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
260 cw = self.__getCurrentShape(className)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
261 cw.setPos(x, y)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
262 rect = cw.sceneBoundingRect()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
263 x = x + rect.width() + whiteSpace
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264 y = y + currentHeight + verticalWhiteSpace
2033
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parents: 2031
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265
945
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diff changeset
266 def __addLocalClass(self, className, _class, x, y, isRbModule=False):
0
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parents:
diff changeset
267 """
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parents:
diff changeset
268 Private method to add a class defined in the module.
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parents:
diff changeset
269
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270 @param className name of the class to be as a dictionary key (string)
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271 @param _class class to be shown (ModuleParser.Class)
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272 @param x x-coordinate (float)
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273 @param y y-coordinate (float)
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parents:
diff changeset
274 @param isRbModule flag indicating a Ruby module (boolean)
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parents:
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275 """
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parents:
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276 meths = sorted(_class.methods.keys())
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277 attrs = sorted(_class.attributes.keys())
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278 name = _class.name
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279 if isRbModule:
413
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parents: 40
diff changeset
280 name = "{0} (Module)".format(name)
0
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281 cl = ClassModel(name, meths[:], attrs[:])
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282 cw = ClassItem(cl, False, x, y, noAttrs=self.noAttrs, scene=self.scene)
2030
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parents: 2028
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283 cw.setId(self.umlView.getItemId())
0
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284 self.allClasses[className] = cw
2033
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parents: 2031
diff changeset
285
0
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286 def __addExternalClass(self, _class, x, y):
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287 """
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288 Private method to add a class defined outside the module.
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289
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290 If the canvas is too small to take the shape, it
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291 is enlarged.
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292
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293 @param _class class to be shown (string)
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294 @param x x-coordinate (float)
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295 @param y y-coordinate (float)
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parents:
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296 """
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297 cl = ClassModel(_class)
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298 cw = ClassItem(cl, True, x, y, noAttrs=self.noAttrs, scene=self.scene)
2030
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299 cw.setId(self.umlView.getItemId())
0
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300 self.allClasses[_class] = cw
2033
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diff changeset
301
0
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302 def __createAssociations(self, routes):
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parents:
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303 """
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parents:
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304 Private method to generate the associations between the class shapes.
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parents:
diff changeset
305
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306 @param routes list of relationsships
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parents:
diff changeset
307 """
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parents:
diff changeset
308 for route in routes:
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parents:
diff changeset
309 if len(route) > 1:
564
b3d966393ba9 Did some code cleanup.
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parents: 483
diff changeset
310 assoc = AssociationItem(
0
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parents:
diff changeset
311 self.__getCurrentShape(route[1]),
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parents:
diff changeset
312 self.__getCurrentShape(route[0]),
2024
717b72b32420 Changed the association layout for the package and class diagrams.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1845
diff changeset
313 Generalisation,
717b72b32420 Changed the association layout for the package and class diagrams.
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parents: 1845
diff changeset
314 topToBottom=True)
0
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diff changeset
315 self.scene.addItem(assoc)
2033
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parents: 2031
diff changeset
316
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diff changeset
317 def getPersistenceData(self):
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diff changeset
318 """
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parents: 2031
diff changeset
319 Public method to get a string for data to be persisted.
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parents: 2031
diff changeset
320
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diff changeset
321 @return persisted data string (string)
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parents: 2031
diff changeset
322 """
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parents: 2031
diff changeset
323 return "package={0}, no_attributes={1}".format(self.package, self.noAttrs)
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diff changeset
324
2034
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diff changeset
325 def parsePersistenceData(self, version, data):
2033
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parents: 2031
diff changeset
326 """
4b99609f6a87 Some more refactorings to prepare loading graphics diagrams from file.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2031
diff changeset
327 Public method to parse persisted data.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2031
diff changeset
328
2034
8de0fc1f7fef Implemented functions to load UML graphics from disc.
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parents: 2033
diff changeset
329 @param version version of the data (string)
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parents: 2033
diff changeset
330 @param data persisted data to be parsed (string)
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parents: 2033
diff changeset
331 @return flag indicating success (boolean)
2033
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2031
diff changeset
332 """
2034
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
333 parts = data.split(", ")
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
334 if len(parts) != 2 or \
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
335 not parts[0].startswith("package=") or \
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
336 not parts[1].startswith("no_attributes="):
8de0fc1f7fef Implemented functions to load UML graphics from disc.
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parents: 2033
diff changeset
337 return False
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
338
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
339 self.package = parts[0].split("=", 1)[1].strip()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
340 self.noAttrs = Utilities.toBool(parts[1].split("=", 1)[1].strip())
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
341
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
342 self.initialize()
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
343
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
344 return True

eric ide

mercurial